From 3b2d871245357015cac621d7612b6ecf59f424df Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Thu, 1 Nov 2007 17:32:21 +1100 Subject: [SCSI] aacraid: don't assign cpu_to_le32(constant) to u8 Noticed on PowerPC allmod config build: drivers/scsi/aacraid/commsup.c:1342: warning: large integer implicitly truncated to unsigned type drivers/scsi/aacraid/commsup.c:1343: warning: large integer implicitly truncated to unsigned type drivers/scsi/aacraid/commsup.c:1344: warning: large integer implicitly truncated to unsigned type Also fix some whitespace on the changed lines. Signed-off-by: Stephen Rothwell Acked-by: Mark Salyzyn Signed-off-by: James Signed-off-by: James Bottomley --- drivers/scsi/aacraid/commsup.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 240a0bb8986..3c2dbc0752b 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1339,9 +1339,9 @@ int aac_check_health(struct aac_dev * aac) aif = (struct aac_aifcmd *)hw_fib->data; aif->command = cpu_to_le32(AifCmdEventNotify); aif->seqnum = cpu_to_le32(0xFFFFFFFF); - aif->data[0] = cpu_to_le32(AifEnExpEvent); - aif->data[1] = cpu_to_le32(AifExeFirmwarePanic); - aif->data[2] = cpu_to_le32(AifHighPriority); + aif->data[0] = AifEnExpEvent; + aif->data[1] = AifExeFirmwarePanic; + aif->data[2] = AifHighPriority; aif->data[3] = cpu_to_le32(BlinkLED); /* -- cgit v1.2.3 From e85fbc595aa527e0b3c9a738c4dc1d7717afb30c Mon Sep 17 00:00:00 2001 From: "Salyzyn, Mark" Date: Wed, 31 Oct 2007 16:40:37 -0400 Subject: [SCSI] aacraid: fix potential panic in thread stop Got a panic in the threading code on an older kernel when the Adapter failed to load properly and driver shut down apparently before any threading had started, can not dupe. Expect that this may be relevant in the latest kernel, but not sure. This patch does no harm, and should alleviate the possibility of this panic. Signed-off-by: Mark Salyzyn Signed-off-by: James Bottomley --- drivers/scsi/aacraid/linit.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 038980be763..53061bceaad 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -950,7 +950,8 @@ static struct scsi_host_template aac_driver_template = { static void __aac_shutdown(struct aac_dev * aac) { - kthread_stop(aac->thread); + if (aac->aif_thread) + kthread_stop(aac->thread); aac_send_shutdown(aac); aac_adapter_disable_int(aac); free_irq(aac->pdev->irq, aac); -- cgit v1.2.3 From e6096963d2125294f736df4fc37f4226d0b4d178 Mon Sep 17 00:00:00 2001 From: "Salyzyn, Mark" Date: Wed, 7 Nov 2007 10:58:12 -0500 Subject: [SCSI] aacraid: fix up le32 issues in BlinkLED Signed-off-by: Mark Salyzyn Signed-off-by: James Bottomley --- drivers/scsi/aacraid/commsup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 3c2dbc0752b..abce48ccc85 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1342,7 +1342,7 @@ int aac_check_health(struct aac_dev * aac) aif->data[0] = AifEnExpEvent; aif->data[1] = AifExeFirmwarePanic; aif->data[2] = AifHighPriority; - aif->data[3] = cpu_to_le32(BlinkLED); + aif->data[3] = BlinkLED; /* * Put the FIB onto the -- cgit v1.2.3 From 5f78e89b5f7041895c4820be5c000792243b634f Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 7 Nov 2007 23:58:10 +0000 Subject: [SCSI] aacraid: fix security weakness Actually there are several but one is trivially fixed 1. FSACTL_GET_NEXT_ADAPTER_FIB ioctl does not lock dev->fib_list but needs to 2. Ditto for FSACTL_CLOSE_GET_ADAPTER_FIB 3. It is possible to construct an attack via the SRB ioctls where the user obtains assorted elevated privileges. Various approaches are possible, the trivial ones being things like writing to the raw media via scsi commands and the swap image of other executing programs with higher privileges. So the ioctls should be CAP_SYS_RAWIO - at least all the FIB manipulating ones. This is a bandaid fix for #3 but probably the ioctls should grow their own capable checks. The other two bugs need someone competent in that driver to fix them. Signed-off-by: Alan Cox Acked-by: Mark Salyzyn Signed-off-by: James Bottomley --- drivers/scsi/aacraid/linit.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 53061bceaad..9dd331bc29b 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -636,7 +636,7 @@ static int aac_cfg_open(struct inode *inode, struct file *file) static int aac_cfg_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { - if (!capable(CAP_SYS_ADMIN)) + if (!capable(CAP_SYS_RAWIO)) return -EPERM; return aac_do_ioctl(file->private_data, cmd, (void __user *)arg); } @@ -691,7 +691,7 @@ static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) static long aac_compat_cfg_ioctl(struct file *file, unsigned cmd, unsigned long arg) { - if (!capable(CAP_SYS_ADMIN)) + if (!capable(CAP_SYS_RAWIO)) return -EPERM; return aac_compat_do_ioctl((struct aac_dev *)file->private_data, cmd, arg); } -- cgit v1.2.3 From 505f76b3061f6e74a50f378e45ac931abc1fe784 Mon Sep 17 00:00:00 2001 From: Tony Battersby Date: Wed, 14 Nov 2007 14:38:42 -0600 Subject: [SCSI] iscsi_tcp: fix potential lockup with write commands There is a race condition in iscsi_tcp.c that may cause it to forget that it received a R2T from the target. This race may cause a data-out command (such as a write) to lock up. The race occurs here: static int iscsi_send_unsol_pdu(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) { struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; int rc; if (tcp_ctask->xmstate & XMSTATE_UNS_HDR) { BUG_ON(!ctask->unsol_count); tcp_ctask->xmstate &= ~XMSTATE_UNS_HDR; <---- RACE ... static int iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) { ... tcp_ctask->xmstate |= XMSTATE_SOL_HDR_INIT; <---- RACE ... While iscsi_xmitworker() (called from scsi_queue_work()) is preparing to send unsolicited data, iscsi_tcp_data_recv() (called from tcp_read_sock()) interrupts it upon receipt of a R2T from the target. Both contexts do read-modify-write of tcp_ctask->xmstate. Usually, gcc on x86 will make &= and |= atomic on UP (not guaranteed of course), but in this case iscsi_send_unsol_pdu() reads the value of xmstate before clearing the bit, which causes gcc to read xmstate into a CPU register, test it, clear the bit, and then store it back to memory. If the recv interrupt happens during this sequence, then the XMSTATE_SOL_HDR_INIT bit set by the recv interrupt will be lost, and the R2T will be forgotten. The patch below (against 2.6.24-rc1) converts accesses of xmstate to use set_bit, clear_bit, and test_bit instead of |= and &=. I have tested this patch and verified that it fixes the problem. Another possible approach would be to hold a lock during most of the rx/tx setup and post-processing, and drop the lock only for the actual rx/tx. Signed-off-by: Tony Battersby Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/iscsi_tcp.c | 139 +++++++++++++++++++++++------------------------ drivers/scsi/iscsi_tcp.h | 34 ++++++------ 2 files changed, 86 insertions(+), 87 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 4bcf916c21a..57ce2251abc 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -197,7 +197,7 @@ iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) if (unlikely(!sc)) return; - tcp_ctask->xmstate = XMSTATE_IDLE; + tcp_ctask->xmstate = XMSTATE_VALUE_IDLE; tcp_ctask->r2t = NULL; } @@ -409,7 +409,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) tcp_ctask->exp_datasn = r2tsn + 1; __kfifo_put(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*)); - tcp_ctask->xmstate |= XMSTATE_SOL_HDR_INIT; + set_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate); list_move_tail(&ctask->running, &conn->xmitqueue); scsi_queue_work(session->host, &conn->xmitwork); @@ -1254,7 +1254,7 @@ static void iscsi_set_padding(struct iscsi_tcp_cmd_task *tcp_ctask, tcp_ctask->pad_count = ISCSI_PAD_LEN - tcp_ctask->pad_count; debug_scsi("write padding %d bytes\n", tcp_ctask->pad_count); - tcp_ctask->xmstate |= XMSTATE_W_PAD; + set_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate); } /** @@ -1269,7 +1269,7 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask) struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; BUG_ON(__kfifo_len(tcp_ctask->r2tqueue)); - tcp_ctask->xmstate = XMSTATE_CMD_HDR_INIT; + tcp_ctask->xmstate = 1 << XMSTATE_BIT_CMD_HDR_INIT; } /** @@ -1283,10 +1283,10 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask) * xmit. * * Management xmit state machine consists of these states: - * XMSTATE_IMM_HDR_INIT - calculate digest of PDU Header - * XMSTATE_IMM_HDR - PDU Header xmit in progress - * XMSTATE_IMM_DATA - PDU Data xmit in progress - * XMSTATE_IDLE - management PDU is done + * XMSTATE_BIT_IMM_HDR_INIT - calculate digest of PDU Header + * XMSTATE_BIT_IMM_HDR - PDU Header xmit in progress + * XMSTATE_BIT_IMM_DATA - PDU Data xmit in progress + * XMSTATE_VALUE_IDLE - management PDU is done **/ static int iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask) @@ -1297,12 +1297,12 @@ iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask) debug_scsi("mtask deq [cid %d state %x itt 0x%x]\n", conn->id, tcp_mtask->xmstate, mtask->itt); - if (tcp_mtask->xmstate & XMSTATE_IMM_HDR_INIT) { + if (test_bit(XMSTATE_BIT_IMM_HDR_INIT, &tcp_mtask->xmstate)) { iscsi_buf_init_iov(&tcp_mtask->headbuf, (char*)mtask->hdr, sizeof(struct iscsi_hdr)); if (mtask->data_count) { - tcp_mtask->xmstate |= XMSTATE_IMM_DATA; + set_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate); iscsi_buf_init_iov(&tcp_mtask->sendbuf, (char*)mtask->data, mtask->data_count); @@ -1315,21 +1315,20 @@ iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask) (u8*)tcp_mtask->hdrext); tcp_mtask->sent = 0; - tcp_mtask->xmstate &= ~XMSTATE_IMM_HDR_INIT; - tcp_mtask->xmstate |= XMSTATE_IMM_HDR; + clear_bit(XMSTATE_BIT_IMM_HDR_INIT, &tcp_mtask->xmstate); + set_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate); } - if (tcp_mtask->xmstate & XMSTATE_IMM_HDR) { + if (test_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate)) { rc = iscsi_sendhdr(conn, &tcp_mtask->headbuf, mtask->data_count); if (rc) return rc; - tcp_mtask->xmstate &= ~XMSTATE_IMM_HDR; + clear_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate); } - if (tcp_mtask->xmstate & XMSTATE_IMM_DATA) { + if (test_and_clear_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate)) { BUG_ON(!mtask->data_count); - tcp_mtask->xmstate &= ~XMSTATE_IMM_DATA; /* FIXME: implement. * Virtual buffer could be spreaded across multiple pages... */ @@ -1339,13 +1338,13 @@ iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask) rc = iscsi_sendpage(conn, &tcp_mtask->sendbuf, &mtask->data_count, &tcp_mtask->sent); if (rc) { - tcp_mtask->xmstate |= XMSTATE_IMM_DATA; + set_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate); return rc; } } while (mtask->data_count); } - BUG_ON(tcp_mtask->xmstate != XMSTATE_IDLE); + BUG_ON(tcp_mtask->xmstate != XMSTATE_VALUE_IDLE); if (mtask->hdr->itt == RESERVED_ITT) { struct iscsi_session *session = conn->session; @@ -1365,7 +1364,7 @@ iscsi_send_cmd_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; int rc = 0; - if (tcp_ctask->xmstate & XMSTATE_CMD_HDR_INIT) { + if (test_bit(XMSTATE_BIT_CMD_HDR_INIT, &tcp_ctask->xmstate)) { tcp_ctask->sent = 0; tcp_ctask->sg_count = 0; tcp_ctask->exp_datasn = 0; @@ -1390,21 +1389,21 @@ iscsi_send_cmd_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) if (conn->hdrdgst_en) iscsi_hdr_digest(conn, &tcp_ctask->headbuf, (u8*)tcp_ctask->hdrext); - tcp_ctask->xmstate &= ~XMSTATE_CMD_HDR_INIT; - tcp_ctask->xmstate |= XMSTATE_CMD_HDR_XMIT; + clear_bit(XMSTATE_BIT_CMD_HDR_INIT, &tcp_ctask->xmstate); + set_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate); } - if (tcp_ctask->xmstate & XMSTATE_CMD_HDR_XMIT) { + if (test_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate)) { rc = iscsi_sendhdr(conn, &tcp_ctask->headbuf, ctask->imm_count); if (rc) return rc; - tcp_ctask->xmstate &= ~XMSTATE_CMD_HDR_XMIT; + clear_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate); if (sc->sc_data_direction != DMA_TO_DEVICE) return 0; if (ctask->imm_count) { - tcp_ctask->xmstate |= XMSTATE_IMM_DATA; + set_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate); iscsi_set_padding(tcp_ctask, ctask->imm_count); if (ctask->conn->datadgst_en) { @@ -1414,9 +1413,10 @@ iscsi_send_cmd_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) } } - if (ctask->unsol_count) - tcp_ctask->xmstate |= - XMSTATE_UNS_HDR | XMSTATE_UNS_INIT; + if (ctask->unsol_count) { + set_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate); + set_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate); + } } return rc; } @@ -1428,25 +1428,25 @@ iscsi_send_padding(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) struct iscsi_tcp_conn *tcp_conn = conn->dd_data; int sent = 0, rc; - if (tcp_ctask->xmstate & XMSTATE_W_PAD) { + if (test_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate)) { iscsi_buf_init_iov(&tcp_ctask->sendbuf, (char*)&tcp_ctask->pad, tcp_ctask->pad_count); if (conn->datadgst_en) crypto_hash_update(&tcp_conn->tx_hash, &tcp_ctask->sendbuf.sg, tcp_ctask->sendbuf.sg.length); - } else if (!(tcp_ctask->xmstate & XMSTATE_W_RESEND_PAD)) + } else if (!test_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate)) return 0; - tcp_ctask->xmstate &= ~XMSTATE_W_PAD; - tcp_ctask->xmstate &= ~XMSTATE_W_RESEND_PAD; + clear_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate); + clear_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate); debug_scsi("sending %d pad bytes for itt 0x%x\n", tcp_ctask->pad_count, ctask->itt); rc = iscsi_sendpage(conn, &tcp_ctask->sendbuf, &tcp_ctask->pad_count, &sent); if (rc) { debug_scsi("padding send failed %d\n", rc); - tcp_ctask->xmstate |= XMSTATE_W_RESEND_PAD; + set_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate); } return rc; } @@ -1465,11 +1465,11 @@ iscsi_send_digest(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask, tcp_ctask = ctask->dd_data; tcp_conn = conn->dd_data; - if (!(tcp_ctask->xmstate & XMSTATE_W_RESEND_DATA_DIGEST)) { + if (!test_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate)) { crypto_hash_final(&tcp_conn->tx_hash, (u8*)digest); iscsi_buf_init_iov(buf, (char*)digest, 4); } - tcp_ctask->xmstate &= ~XMSTATE_W_RESEND_DATA_DIGEST; + clear_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate); rc = iscsi_sendpage(conn, buf, &tcp_ctask->digest_count, &sent); if (!rc) @@ -1478,7 +1478,7 @@ iscsi_send_digest(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask, else { debug_scsi("sending digest 0x%x failed for itt 0x%x!\n", *digest, ctask->itt); - tcp_ctask->xmstate |= XMSTATE_W_RESEND_DATA_DIGEST; + set_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate); } return rc; } @@ -1526,8 +1526,8 @@ iscsi_send_unsol_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) struct iscsi_data_task *dtask; int rc; - tcp_ctask->xmstate |= XMSTATE_UNS_DATA; - if (tcp_ctask->xmstate & XMSTATE_UNS_INIT) { + set_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate); + if (test_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate)) { dtask = &tcp_ctask->unsol_dtask; iscsi_prep_unsolicit_data_pdu(ctask, &dtask->hdr); @@ -1537,14 +1537,14 @@ iscsi_send_unsol_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) iscsi_hdr_digest(conn, &tcp_ctask->headbuf, (u8*)dtask->hdrext); - tcp_ctask->xmstate &= ~XMSTATE_UNS_INIT; + clear_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate); iscsi_set_padding(tcp_ctask, ctask->data_count); } rc = iscsi_sendhdr(conn, &tcp_ctask->headbuf, ctask->data_count); if (rc) { - tcp_ctask->xmstate &= ~XMSTATE_UNS_DATA; - tcp_ctask->xmstate |= XMSTATE_UNS_HDR; + clear_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate); + set_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate); return rc; } @@ -1565,16 +1565,15 @@ iscsi_send_unsol_pdu(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; int rc; - if (tcp_ctask->xmstate & XMSTATE_UNS_HDR) { + if (test_and_clear_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate)) { BUG_ON(!ctask->unsol_count); - tcp_ctask->xmstate &= ~XMSTATE_UNS_HDR; send_hdr: rc = iscsi_send_unsol_hdr(conn, ctask); if (rc) return rc; } - if (tcp_ctask->xmstate & XMSTATE_UNS_DATA) { + if (test_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate)) { struct iscsi_data_task *dtask = &tcp_ctask->unsol_dtask; int start = tcp_ctask->sent; @@ -1584,14 +1583,14 @@ send_hdr: ctask->unsol_count -= tcp_ctask->sent - start; if (rc) return rc; - tcp_ctask->xmstate &= ~XMSTATE_UNS_DATA; + clear_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate); /* * Done with the Data-Out. Next, check if we need * to send another unsolicited Data-Out. */ if (ctask->unsol_count) { debug_scsi("sending more uns\n"); - tcp_ctask->xmstate |= XMSTATE_UNS_INIT; + set_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate); goto send_hdr; } } @@ -1607,7 +1606,7 @@ static int iscsi_send_sol_pdu(struct iscsi_conn *conn, struct iscsi_data_task *dtask; int left, rc; - if (tcp_ctask->xmstate & XMSTATE_SOL_HDR_INIT) { + if (test_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate)) { if (!tcp_ctask->r2t) { spin_lock_bh(&session->lock); __kfifo_get(tcp_ctask->r2tqueue, (void*)&tcp_ctask->r2t, @@ -1621,19 +1620,19 @@ send_hdr: if (conn->hdrdgst_en) iscsi_hdr_digest(conn, &r2t->headbuf, (u8*)dtask->hdrext); - tcp_ctask->xmstate &= ~XMSTATE_SOL_HDR_INIT; - tcp_ctask->xmstate |= XMSTATE_SOL_HDR; + clear_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate); + set_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate); } - if (tcp_ctask->xmstate & XMSTATE_SOL_HDR) { + if (test_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate)) { r2t = tcp_ctask->r2t; dtask = &r2t->dtask; rc = iscsi_sendhdr(conn, &r2t->headbuf, r2t->data_count); if (rc) return rc; - tcp_ctask->xmstate &= ~XMSTATE_SOL_HDR; - tcp_ctask->xmstate |= XMSTATE_SOL_DATA; + clear_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate); + set_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate); if (conn->datadgst_en) { iscsi_data_digest_init(conn->dd_data, tcp_ctask); @@ -1646,7 +1645,7 @@ send_hdr: r2t->sent); } - if (tcp_ctask->xmstate & XMSTATE_SOL_DATA) { + if (test_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate)) { r2t = tcp_ctask->r2t; dtask = &r2t->dtask; @@ -1655,7 +1654,7 @@ send_hdr: &dtask->digestbuf, &dtask->digest); if (rc) return rc; - tcp_ctask->xmstate &= ~XMSTATE_SOL_DATA; + clear_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate); /* * Done with this Data-Out. Next, check if we have @@ -1700,32 +1699,32 @@ send_hdr: * xmit stages. * *iscsi_send_cmd_hdr() - * XMSTATE_CMD_HDR_INIT - prepare Header and Data buffers Calculate - * Header Digest - * XMSTATE_CMD_HDR_XMIT - Transmit header in progress + * XMSTATE_BIT_CMD_HDR_INIT - prepare Header and Data buffers Calculate + * Header Digest + * XMSTATE_BIT_CMD_HDR_XMIT - Transmit header in progress * *iscsi_send_padding - * XMSTATE_W_PAD - Prepare and send pading - * XMSTATE_W_RESEND_PAD - retry send pading + * XMSTATE_BIT_W_PAD - Prepare and send pading + * XMSTATE_BIT_W_RESEND_PAD - retry send pading * *iscsi_send_digest - * XMSTATE_W_RESEND_DATA_DIGEST - Finalize and send Data Digest - * XMSTATE_W_RESEND_DATA_DIGEST - retry sending digest + * XMSTATE_BIT_W_RESEND_DATA_DIGEST - Finalize and send Data Digest + * XMSTATE_BIT_W_RESEND_DATA_DIGEST - retry sending digest * *iscsi_send_unsol_hdr - * XMSTATE_UNS_INIT - prepare un-solicit data header and digest - * XMSTATE_UNS_HDR - send un-solicit header + * XMSTATE_BIT_UNS_INIT - prepare un-solicit data header and digest + * XMSTATE_BIT_UNS_HDR - send un-solicit header * *iscsi_send_unsol_pdu - * XMSTATE_UNS_DATA - send un-solicit data in progress + * XMSTATE_BIT_UNS_DATA - send un-solicit data in progress * *iscsi_send_sol_pdu - * XMSTATE_SOL_HDR_INIT - solicit data header and digest initialize - * XMSTATE_SOL_HDR - send solicit header - * XMSTATE_SOL_DATA - send solicit data + * XMSTATE_BIT_SOL_HDR_INIT - solicit data header and digest initialize + * XMSTATE_BIT_SOL_HDR - send solicit header + * XMSTATE_BIT_SOL_DATA - send solicit data * *iscsi_tcp_ctask_xmit - * XMSTATE_IMM_DATA - xmit managment data (??) + * XMSTATE_BIT_IMM_DATA - xmit managment data (??) **/ static int iscsi_tcp_ctask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) @@ -1742,13 +1741,13 @@ iscsi_tcp_ctask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) if (ctask->sc->sc_data_direction != DMA_TO_DEVICE) return 0; - if (tcp_ctask->xmstate & XMSTATE_IMM_DATA) { + if (test_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate)) { rc = iscsi_send_data(ctask, &tcp_ctask->sendbuf, &tcp_ctask->sg, &tcp_ctask->sent, &ctask->imm_count, &tcp_ctask->immbuf, &tcp_ctask->immdigest); if (rc) return rc; - tcp_ctask->xmstate &= ~XMSTATE_IMM_DATA; + clear_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate); } rc = iscsi_send_unsol_pdu(conn, ctask); @@ -1981,7 +1980,7 @@ static void iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask) { struct iscsi_tcp_mgmt_task *tcp_mtask = mtask->dd_data; - tcp_mtask->xmstate = XMSTATE_IMM_HDR_INIT; + tcp_mtask->xmstate = 1 << XMSTATE_BIT_IMM_HDR_INIT; } static int diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h index 7eba44df0a7..68c36cc8997 100644 --- a/drivers/scsi/iscsi_tcp.h +++ b/drivers/scsi/iscsi_tcp.h @@ -32,21 +32,21 @@ #define IN_PROGRESS_PAD_RECV 0x4 /* xmit state machine */ -#define XMSTATE_IDLE 0x0 -#define XMSTATE_CMD_HDR_INIT 0x1 -#define XMSTATE_CMD_HDR_XMIT 0x2 -#define XMSTATE_IMM_HDR 0x4 -#define XMSTATE_IMM_DATA 0x8 -#define XMSTATE_UNS_INIT 0x10 -#define XMSTATE_UNS_HDR 0x20 -#define XMSTATE_UNS_DATA 0x40 -#define XMSTATE_SOL_HDR 0x80 -#define XMSTATE_SOL_DATA 0x100 -#define XMSTATE_W_PAD 0x200 -#define XMSTATE_W_RESEND_PAD 0x400 -#define XMSTATE_W_RESEND_DATA_DIGEST 0x800 -#define XMSTATE_IMM_HDR_INIT 0x1000 -#define XMSTATE_SOL_HDR_INIT 0x2000 +#define XMSTATE_VALUE_IDLE 0 +#define XMSTATE_BIT_CMD_HDR_INIT 0 +#define XMSTATE_BIT_CMD_HDR_XMIT 1 +#define XMSTATE_BIT_IMM_HDR 2 +#define XMSTATE_BIT_IMM_DATA 3 +#define XMSTATE_BIT_UNS_INIT 4 +#define XMSTATE_BIT_UNS_HDR 5 +#define XMSTATE_BIT_UNS_DATA 6 +#define XMSTATE_BIT_SOL_HDR 7 +#define XMSTATE_BIT_SOL_DATA 8 +#define XMSTATE_BIT_W_PAD 9 +#define XMSTATE_BIT_W_RESEND_PAD 10 +#define XMSTATE_BIT_W_RESEND_DATA_DIGEST 11 +#define XMSTATE_BIT_IMM_HDR_INIT 12 +#define XMSTATE_BIT_SOL_HDR_INIT 13 #define ISCSI_PAD_LEN 4 #define ISCSI_SG_TABLESIZE SG_ALL @@ -122,7 +122,7 @@ struct iscsi_data_task { struct iscsi_tcp_mgmt_task { struct iscsi_hdr hdr; char hdrext[sizeof(__u32)]; /* Header-Digest */ - int xmstate; /* mgmt xmit progress */ + unsigned long xmstate; /* mgmt xmit progress */ struct iscsi_buf headbuf; /* header buffer */ struct iscsi_buf sendbuf; /* in progress buffer */ int sent; @@ -150,7 +150,7 @@ struct iscsi_tcp_cmd_task { int pad_count; /* padded bytes */ struct iscsi_buf headbuf; /* header buf (xmit) */ struct iscsi_buf sendbuf; /* in progress buffer*/ - int xmstate; /* xmit xtate machine */ + unsigned long xmstate; /* xmit xtate machine */ int sent; struct scatterlist *sg; /* per-cmd SG list */ struct scatterlist *bad_sg; /* assert statement */ -- cgit v1.2.3 From 6ee6a2f0258c064bbc64ad97dc195063457ebebe Mon Sep 17 00:00:00 2001 From: Tony Battersby Date: Wed, 14 Nov 2007 14:38:43 -0600 Subject: [SCSI] iscsi: return data transfer residual for data-out commands Currently, the iSCSI driver returns the data transfer residual for data-in commands (e.g. read) but not data-out commands (e.g. write). This patch makes it return the data transfer residual for both types of commands. Signed-off-by: Tony Battersby Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/libiscsi.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index efceed451b4..8b57af5baae 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -291,9 +291,6 @@ invalid_datalen: min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE)); } - if (sc->sc_data_direction == DMA_TO_DEVICE) - goto out; - if (rhdr->flags & ISCSI_FLAG_CMD_UNDERFLOW) { int res_count = be32_to_cpu(rhdr->residual_count); -- cgit v1.2.3 From 5c1da582b3a95123ffb1e70ec7cd60e757c7c8c2 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Fri, 9 Nov 2007 14:40:41 +0100 Subject: [SCSI] qla1280: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Fixed to missing initialization of sg lists before calling for_each_sg() by Jes Sorensen - sg list needs to be initialized before trying to pull the elements out of it. Signed-off-by: FUJITA Tomonori Signed-off-by: Jes Sorensen Signed-off-by: James Bottomley --- drivers/scsi/qla1280.c | 387 +++++++++++++++++++++---------------------------- 1 file changed, 166 insertions(+), 221 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 3aeb68bcb7a..146d540f628 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -1310,14 +1310,7 @@ qla1280_done(struct scsi_qla_host *ha) } /* Release memory used for this I/O */ - if (cmd->use_sg) { - pci_unmap_sg(ha->pdev, cmd->request_buffer, - cmd->use_sg, cmd->sc_data_direction); - } else if (cmd->request_bufflen) { - pci_unmap_single(ha->pdev, sp->saved_dma_handle, - cmd->request_bufflen, - cmd->sc_data_direction); - } + scsi_dma_unmap(cmd); /* Call the mid-level driver interrupt handler */ CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE; @@ -1406,14 +1399,14 @@ qla1280_return_status(struct response * sts, struct scsi_cmnd *cp) break; case CS_DATA_UNDERRUN: - if ((cp->request_bufflen - residual_length) < + if ((scsi_bufflen(cp) - residual_length) < cp->underflow) { printk(KERN_WARNING "scsi: Underflow detected - retrying " "command.\n"); host_status = DID_ERROR; } else { - cp->resid = residual_length; + scsi_set_resid(cp, residual_length); host_status = DID_OK; } break; @@ -2775,33 +2768,28 @@ qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) struct device_reg __iomem *reg = ha->iobase; struct scsi_cmnd *cmd = sp->cmd; cmd_a64_entry_t *pkt; - struct scatterlist *sg = NULL, *s; __le32 *dword_ptr; dma_addr_t dma_handle; int status = 0; int cnt; int req_cnt; - u16 seg_cnt; + int seg_cnt; u8 dir; ENTER("qla1280_64bit_start_scsi:"); /* Calculate number of entries and segments required. */ req_cnt = 1; - if (cmd->use_sg) { - sg = (struct scatterlist *) cmd->request_buffer; - seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg, - cmd->sc_data_direction); - + seg_cnt = scsi_dma_map(cmd); + if (seg_cnt > 0) { if (seg_cnt > 2) { req_cnt += (seg_cnt - 2) / 5; if ((seg_cnt - 2) % 5) req_cnt++; } - } else if (cmd->request_bufflen) { /* If data transfer. */ - seg_cnt = 1; - } else { - seg_cnt = 0; + } else if (seg_cnt < 0) { + status = 1; + goto out; } if ((req_cnt + 2) >= ha->req_q_cnt) { @@ -2889,124 +2877,104 @@ qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) * Load data segments. */ if (seg_cnt) { /* If data transfer. */ + struct scatterlist *sg, *s; int remseg = seg_cnt; + + sg = scsi_sglist(cmd); + /* Setup packet address segment pointer. */ dword_ptr = (u32 *)&pkt->dseg_0_address; - if (cmd->use_sg) { /* If scatter gather */ - /* Load command entry data segments. */ - for_each_sg(sg, s, seg_cnt, cnt) { - if (cnt == 2) + /* Load command entry data segments. */ + for_each_sg(sg, s, seg_cnt, cnt) { + if (cnt == 2) + break; + + dma_handle = sg_dma_address(s); +#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) + if (ha->flags.use_pci_vchannel) + sn_pci_set_vchan(ha->pdev, + (unsigned long *)&dma_handle, + SCSI_BUS_32(cmd)); +#endif + *dword_ptr++ = + cpu_to_le32(pci_dma_lo32(dma_handle)); + *dword_ptr++ = + cpu_to_le32(pci_dma_hi32(dma_handle)); + *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); + dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n", + cpu_to_le32(pci_dma_hi32(dma_handle)), + cpu_to_le32(pci_dma_lo32(dma_handle)), + cpu_to_le32(sg_dma_len(sg_next(s)))); + remseg--; + } + dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather " + "command packet data - b %i, t %i, l %i \n", + SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), + SCSI_LUN_32(cmd)); + qla1280_dump_buffer(5, (char *)pkt, + REQUEST_ENTRY_SIZE); + + /* + * Build continuation packets. + */ + dprintk(3, "S/G Building Continuation...seg_cnt=0x%x " + "remains\n", seg_cnt); + + while (remseg > 0) { + /* Update sg start */ + sg = s; + /* Adjust ring index. */ + ha->req_ring_index++; + if (ha->req_ring_index == REQUEST_ENTRY_CNT) { + ha->req_ring_index = 0; + ha->request_ring_ptr = + ha->request_ring; + } else + ha->request_ring_ptr++; + + pkt = (cmd_a64_entry_t *)ha->request_ring_ptr; + + /* Zero out packet. */ + memset(pkt, 0, REQUEST_ENTRY_SIZE); + + /* Load packet defaults. */ + ((struct cont_a64_entry *) pkt)->entry_type = + CONTINUE_A64_TYPE; + ((struct cont_a64_entry *) pkt)->entry_count = 1; + ((struct cont_a64_entry *) pkt)->sys_define = + (uint8_t)ha->req_ring_index; + /* Setup packet address segment pointer. */ + dword_ptr = + (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address; + + /* Load continuation entry data segments. */ + for_each_sg(sg, s, remseg, cnt) { + if (cnt == 5) break; dma_handle = sg_dma_address(s); #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) if (ha->flags.use_pci_vchannel) sn_pci_set_vchan(ha->pdev, - (unsigned long *)&dma_handle, + (unsigned long *)&dma_handle, SCSI_BUS_32(cmd)); #endif *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle)); - *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); - dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n", + *dword_ptr++ = + cpu_to_le32(sg_dma_len(s)); + dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n", cpu_to_le32(pci_dma_hi32(dma_handle)), cpu_to_le32(pci_dma_lo32(dma_handle)), - cpu_to_le32(sg_dma_len(sg_next(s)))); - remseg--; + cpu_to_le32(sg_dma_len(s))); } - dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather " - "command packet data - b %i, t %i, l %i \n", - SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), - SCSI_LUN_32(cmd)); - qla1280_dump_buffer(5, (char *)pkt, - REQUEST_ENTRY_SIZE); - - /* - * Build continuation packets. - */ - dprintk(3, "S/G Building Continuation...seg_cnt=0x%x " - "remains\n", seg_cnt); - - while (remseg > 0) { - /* Update sg start */ - sg = s; - /* Adjust ring index. */ - ha->req_ring_index++; - if (ha->req_ring_index == REQUEST_ENTRY_CNT) { - ha->req_ring_index = 0; - ha->request_ring_ptr = - ha->request_ring; - } else - ha->request_ring_ptr++; - - pkt = (cmd_a64_entry_t *)ha->request_ring_ptr; - - /* Zero out packet. */ - memset(pkt, 0, REQUEST_ENTRY_SIZE); - - /* Load packet defaults. */ - ((struct cont_a64_entry *) pkt)->entry_type = - CONTINUE_A64_TYPE; - ((struct cont_a64_entry *) pkt)->entry_count = 1; - ((struct cont_a64_entry *) pkt)->sys_define = - (uint8_t)ha->req_ring_index; - /* Setup packet address segment pointer. */ - dword_ptr = - (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address; - - /* Load continuation entry data segments. */ - for_each_sg(sg, s, remseg, cnt) { - if (cnt == 5) - break; - dma_handle = sg_dma_address(s); -#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) - if (ha->flags.use_pci_vchannel) - sn_pci_set_vchan(ha->pdev, - (unsigned long *)&dma_handle, - SCSI_BUS_32(cmd)); -#endif - *dword_ptr++ = - cpu_to_le32(pci_dma_lo32(dma_handle)); - *dword_ptr++ = - cpu_to_le32(pci_dma_hi32(dma_handle)); - *dword_ptr++ = - cpu_to_le32(sg_dma_len(s)); - dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n", - cpu_to_le32(pci_dma_hi32(dma_handle)), - cpu_to_le32(pci_dma_lo32(dma_handle)), - cpu_to_le32(sg_dma_len(s))); - } - remseg -= cnt; - dprintk(5, "qla1280_64bit_start_scsi: " - "continuation packet data - b %i, t " - "%i, l %i \n", SCSI_BUS_32(cmd), - SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); - qla1280_dump_buffer(5, (char *)pkt, - REQUEST_ENTRY_SIZE); - } - } else { /* No scatter gather data transfer */ - dma_handle = pci_map_single(ha->pdev, - cmd->request_buffer, - cmd->request_bufflen, - cmd->sc_data_direction); - - sp->saved_dma_handle = dma_handle; -#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) - if (ha->flags.use_pci_vchannel) - sn_pci_set_vchan(ha->pdev, - (unsigned long *)&dma_handle, - SCSI_BUS_32(cmd)); -#endif - *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); - *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle)); - *dword_ptr = cpu_to_le32(cmd->request_bufflen); - - dprintk(5, "qla1280_64bit_start_scsi: No scatter/" - "gather command packet data - b %i, t %i, " - "l %i \n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), - SCSI_LUN_32(cmd)); + remseg -= cnt; + dprintk(5, "qla1280_64bit_start_scsi: " + "continuation packet data - b %i, t " + "%i, l %i \n", SCSI_BUS_32(cmd), + SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); } @@ -3068,12 +3036,11 @@ qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) struct device_reg __iomem *reg = ha->iobase; struct scsi_cmnd *cmd = sp->cmd; struct cmd_entry *pkt; - struct scatterlist *sg = NULL, *s; __le32 *dword_ptr; int status = 0; int cnt; int req_cnt; - uint16_t seg_cnt; + int seg_cnt; dma_addr_t dma_handle; u8 dir; @@ -3083,18 +3050,8 @@ qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) cmd->cmnd[0]); /* Calculate number of entries and segments required. */ - req_cnt = 1; - if (cmd->use_sg) { - /* - * We must build an SG list in adapter format, as the kernel's - * SG list cannot be used directly because of data field size - * (__alpha__) differences and the kernel SG list uses virtual - * addresses where we need physical addresses. - */ - sg = (struct scatterlist *) cmd->request_buffer; - seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg, - cmd->sc_data_direction); - + seg_cnt = scsi_dma_map(cmd); + if (seg_cnt) { /* * if greater than four sg entries then we need to allocate * continuation entries @@ -3106,14 +3063,9 @@ qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) } dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n", cmd, seg_cnt, req_cnt); - } else if (cmd->request_bufflen) { /* If data transfer. */ - dprintk(3, "No S/G transfer t=%x cmd=%p len=%x CDB=%x\n", - SCSI_TCN_32(cmd), cmd, cmd->request_bufflen, - cmd->cmnd[0]); - seg_cnt = 1; - } else { - /* dprintk(1, "No data transfer \n"); */ - seg_cnt = 0; + } else if (seg_cnt < 0) { + status = 1; + goto out; } if ((req_cnt + 2) >= ha->req_q_cnt) { @@ -3194,91 +3146,84 @@ qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) * Load data segments. */ if (seg_cnt) { + struct scatterlist *sg, *s; int remseg = seg_cnt; + + sg = scsi_sglist(cmd); + /* Setup packet address segment pointer. */ dword_ptr = &pkt->dseg_0_address; - if (cmd->use_sg) { /* If scatter gather */ - dprintk(3, "Building S/G data segments..\n"); - qla1280_dump_buffer(1, (char *)sg, 4 * 16); + dprintk(3, "Building S/G data segments..\n"); + qla1280_dump_buffer(1, (char *)sg, 4 * 16); + + /* Load command entry data segments. */ + for_each_sg(sg, s, seg_cnt, cnt) { + if (cnt == 4) + break; + *dword_ptr++ = + cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); + *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); + dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n", + (pci_dma_lo32(sg_dma_address(s))), + (sg_dma_len(s))); + remseg--; + } + /* + * Build continuation packets. + */ + dprintk(3, "S/G Building Continuation" + "...seg_cnt=0x%x remains\n", seg_cnt); + while (remseg > 0) { + /* Continue from end point */ + sg = s; + /* Adjust ring index. */ + ha->req_ring_index++; + if (ha->req_ring_index == REQUEST_ENTRY_CNT) { + ha->req_ring_index = 0; + ha->request_ring_ptr = + ha->request_ring; + } else + ha->request_ring_ptr++; + + pkt = (struct cmd_entry *)ha->request_ring_ptr; + + /* Zero out packet. */ + memset(pkt, 0, REQUEST_ENTRY_SIZE); + + /* Load packet defaults. */ + ((struct cont_entry *) pkt)-> + entry_type = CONTINUE_TYPE; + ((struct cont_entry *) pkt)->entry_count = 1; - /* Load command entry data segments. */ - for_each_sg(sg, s, seg_cnt, cnt) { - if (cnt == 4) + ((struct cont_entry *) pkt)->sys_define = + (uint8_t) ha->req_ring_index; + + /* Setup packet address segment pointer. */ + dword_ptr = + &((struct cont_entry *) pkt)->dseg_0_address; + + /* Load continuation entry data segments. */ + for_each_sg(sg, s, remseg, cnt) { + if (cnt == 7) break; *dword_ptr++ = cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); - *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); - dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n", - (pci_dma_lo32(sg_dma_address(s))), - (sg_dma_len(s))); - remseg--; - } - /* - * Build continuation packets. - */ - dprintk(3, "S/G Building Continuation" - "...seg_cnt=0x%x remains\n", seg_cnt); - while (remseg > 0) { - /* Continue from end point */ - sg = s; - /* Adjust ring index. */ - ha->req_ring_index++; - if (ha->req_ring_index == REQUEST_ENTRY_CNT) { - ha->req_ring_index = 0; - ha->request_ring_ptr = - ha->request_ring; - } else - ha->request_ring_ptr++; - - pkt = (struct cmd_entry *)ha->request_ring_ptr; - - /* Zero out packet. */ - memset(pkt, 0, REQUEST_ENTRY_SIZE); - - /* Load packet defaults. */ - ((struct cont_entry *) pkt)-> - entry_type = CONTINUE_TYPE; - ((struct cont_entry *) pkt)->entry_count = 1; - - ((struct cont_entry *) pkt)->sys_define = - (uint8_t) ha->req_ring_index; - - /* Setup packet address segment pointer. */ - dword_ptr = - &((struct cont_entry *) pkt)->dseg_0_address; - - /* Load continuation entry data segments. */ - for_each_sg(sg, s, remseg, cnt) { - if (cnt == 7) - break; - *dword_ptr++ = - cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); - *dword_ptr++ = - cpu_to_le32(sg_dma_len(s)); - dprintk(1, - "S/G Segment Cont. phys_addr=0x%x, " - "len=0x%x\n", - cpu_to_le32(pci_dma_lo32(sg_dma_address(s))), - cpu_to_le32(sg_dma_len(s))); - } - remseg -= cnt; - dprintk(5, "qla1280_32bit_start_scsi: " - "continuation packet data - " - "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd), - SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); - qla1280_dump_buffer(5, (char *)pkt, - REQUEST_ENTRY_SIZE); + *dword_ptr++ = + cpu_to_le32(sg_dma_len(s)); + dprintk(1, + "S/G Segment Cont. phys_addr=0x%x, " + "len=0x%x\n", + cpu_to_le32(pci_dma_lo32(sg_dma_address(s))), + cpu_to_le32(sg_dma_len(s))); } - } else { /* No S/G data transfer */ - dma_handle = pci_map_single(ha->pdev, - cmd->request_buffer, - cmd->request_bufflen, - cmd->sc_data_direction); - sp->saved_dma_handle = dma_handle; - - *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); - *dword_ptr = cpu_to_le32(cmd->request_bufflen); + remseg -= cnt; + dprintk(5, "qla1280_32bit_start_scsi: " + "continuation packet data - " + "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd), + SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); + qla1280_dump_buffer(5, (char *)pkt, + REQUEST_ENTRY_SIZE); } } else { /* No data transfer at all */ dprintk(5, "qla1280_32bit_start_scsi: No data, command " @@ -4086,9 +4031,9 @@ __qla1280_print_scsi_cmd(struct scsi_cmnd *cmd) for (i = 0; i < cmd->cmd_len; i++) { printk("0x%02x ", cmd->cmnd[i]); } - printk(" seg_cnt =%d\n", cmd->use_sg); + printk(" seg_cnt =%d\n", scsi_sg_count(cmd)); printk(" request buffer=0x%p, request buffer len=0x%x\n", - cmd->request_buffer, cmd->request_bufflen); + scsi_sglist(cmd), scsi_bufflen(cmd)); /* if (cmd->use_sg) { sg = (struct scatterlist *) cmd->request_buffer; -- cgit v1.2.3 From d0076f7754dce07c7a1d752034561acadd99eafa Mon Sep 17 00:00:00 2001 From: Martin Peschke Date: Thu, 15 Nov 2007 13:57:08 +0100 Subject: [SCSI] zfcp: fix dismissal of error recovery actions zfcp_erp_action_dismiss() used to ignore any actions in the ready list. This is a bug. Any action superseded by a stronger action needs to be dismissed. This patch changes zfcp_erp_action_dismiss() so that it dismisses actions regardless of their list affiliation. The ERP thread is able to handle this. It is important to kick the erp thread only for actions in the running list, though, as an imbalance of wakeup signals would confuse the erp thread otherwise. Signed-off-by: Martin Peschke Acked-by: Swen Schillig Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_erp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 5552b755c08..ad5b481ddaf 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -977,7 +977,9 @@ static void zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action) debug_text_event(adapter->erp_dbf, 2, "a_adis"); debug_event(adapter->erp_dbf, 2, &erp_action->action, sizeof (int)); - zfcp_erp_async_handler_nolock(erp_action, ZFCP_STATUS_ERP_DISMISSED); + erp_action->status |= ZFCP_STATUS_ERP_DISMISSED; + if (zfcp_erp_action_exists(erp_action) == ZFCP_ERP_ACTION_RUNNING) + zfcp_erp_action_ready(erp_action); } int -- cgit v1.2.3 From 86e8dfc5603ed76917eed0a9dd9e85a1e1a8b162 Mon Sep 17 00:00:00 2001 From: Martin Peschke Date: Thu, 15 Nov 2007 13:57:17 +0100 Subject: [SCSI] zfcp: fix cleanup of dismissed error recovery actions Calling zfcp_erp_strategy_check_action() after zfcp_erp_action_to_running() in zfcp_erp_strategy() might cause an unbalanced up() for erp_ready_sem, which makes the zfcp recovery fail somewhere along the way: erp thread processing erp_action: | | someone waking up erp thread for erp_action | | | | someone else dismissing erp_action: | | | V V V write_lock_irqsave(&adapter->erp_lock, flags); ... if (zfcp_erp_action_exists(erp_action) == ZFCP_ERP_ACTION_RUNNING) { zfcp_erp_action_to_ready(erp_action); up(&adapter->erp_ready_sem); /* first up() for erp_action */ } write_unlock_irqrestore(&adapter->erp_lock, flags); write_lock_irqsave(&adapter->erp_lock, flags); ... zfcp_erp_action_to_running(erp_action); write_unlock_restore(&adapter->erp_lock, flags); /* processing erp_action */ write_lock_irqsave(&adapter->erp_lock, flags); ... erp_action->status |= ZFCP_STATUS_ERP_DISMISSED; if (zfcp_erp_action_exists(erp_action) == ZFCP_ERP_ACTION_RUNNING) { zfcp_erp_action_to_ready(erp_action); up(&adapter->erp_ready_sem); /* second, unbalanced up() for erp_action */ } ... write_unlock_restore(&adapter->erp_lock, flags); write_lock_irqsave(&adapter->erp_lock, flags); if (erp_action->status & ZFCP_STATUS_ERP_DISMISSED) { zfcp_erp_action_dequeue(erp_action); retval = ZFCP_ERP_DISMISSED; } ... write_unlock_restore(&adapter->erp_lock, flags); down(&adapter->erp_ready_sem); /* this down() is meant to balance the first up() */ The erp thread must not dismiss an erp_action after moving that action to erp_running_head. Instead it should just go through the down() operation, which balances the first up(), and run through zfcp_erp_strategy one more time for the second up(), which eventually cleans up erp_action. Which is similar to the normal processing of an event for erp_action doing something asynchronously (e.g. waiting for the completion of an fsf_req). This only works if we make sure that a dismissed erp_action is passed to zfcp_erp_strategy() prior to the other action, which caused actions to be dismissed. Therefore the patch implements this rule: running actions go to the head of the ready list; new actions go to the tail of the ready list; the erp thread picks actions to be processed from the ready list's head. Signed-off-by: Martin Peschke Acked-by: Swen Schillig Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_erp.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index ad5b481ddaf..07fa824d179 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -1065,7 +1065,7 @@ zfcp_erp_thread(void *data) &adapter->status)) { write_lock_irqsave(&adapter->erp_lock, flags); - next = adapter->erp_ready_head.prev; + next = adapter->erp_ready_head.next; write_unlock_irqrestore(&adapter->erp_lock, flags); if (next != &adapter->erp_ready_head) { @@ -1155,15 +1155,13 @@ zfcp_erp_strategy(struct zfcp_erp_action *erp_action) /* * check for dismissed status again to avoid follow-up actions, - * failing of targets and so on for dismissed actions + * failing of targets and so on for dismissed actions, + * we go through down() here because there has been an up() */ - retval = zfcp_erp_strategy_check_action(erp_action, retval); + if (erp_action->status & ZFCP_STATUS_ERP_DISMISSED) + retval = ZFCP_ERP_CONTINUES; switch (retval) { - case ZFCP_ERP_DISMISSED: - /* leave since this action has ridden to its ancestors */ - debug_text_event(adapter->erp_dbf, 6, "a_st_dis2"); - goto unlock; case ZFCP_ERP_NOMEM: /* no memory to continue immediately, let it sleep */ if (!(erp_action->status & ZFCP_STATUS_ERP_LOWMEM)) { @@ -3091,7 +3089,7 @@ zfcp_erp_action_enqueue(int action, ++adapter->erp_total_count; /* finally put it into 'ready' queue and kick erp thread */ - list_add(&erp_action->list, &adapter->erp_ready_head); + list_add_tail(&erp_action->list, &adapter->erp_ready_head); up(&adapter->erp_ready_sem); retval = 0; out: -- cgit v1.2.3 From cb43c54ca05c01533c45e4d3abfe8f99b7acf624 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 21 Nov 2007 02:53:14 +0100 Subject: Freezer: Fix APM emulation breakage The APM emulation is currently broken as a result of commit 831441862956fffa17b9801db37e6ea1650b0f69 "Freezer: make kernel threads nonfreezable by default" that removed the PF_NOFREEZE annotations from apm_ioctl() without adding the appropriate freezer hooks. Fix it and remove the unnecessary variable flags from apm_ioctl(). Special thanks to Franck Bui-Huu for pointing out the problem. Signed-off-by: Rafael J. Wysocki Cc: Pavel Machek Cc: Franck Bui-Huu Cc: Nigel Cunningham Signed-off-by: Len Brown --- drivers/char/apm-emulation.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c index c99e43b837f..17d54315e14 100644 --- a/drivers/char/apm-emulation.c +++ b/drivers/char/apm-emulation.c @@ -295,7 +295,6 @@ static int apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) { struct apm_user *as = filp->private_data; - unsigned long flags; int err = -EINVAL; if (!as->suser || !as->writer) @@ -331,10 +330,16 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) * Wait for the suspend/resume to complete. If there * are pending acknowledges, we wait here for them. */ - flags = current->flags; + freezer_do_not_count(); wait_event(apm_suspend_waitqueue, as->suspend_state == SUSPEND_DONE); + + /* + * Since we are waiting until the suspend is done, the + * try_to_freeze() in freezer_count() will not trigger + */ + freezer_count(); } else { as->suspend_state = SUSPEND_WAIT; mutex_unlock(&state_lock); @@ -362,14 +367,10 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) * Wait for the suspend/resume to complete. If there * are pending acknowledges, we wait here for them. */ - flags = current->flags; - - wait_event_interruptible(apm_suspend_waitqueue, + wait_event_freezable(apm_suspend_waitqueue, as->suspend_state == SUSPEND_DONE); } - current->flags = flags; - mutex_lock(&state_lock); err = as->suspend_result; as->suspend_state = SUSPEND_NONE; -- cgit v1.2.3 From 61dbcecef568450de954115180881bf2f68511bc Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 20 Nov 2007 14:50:46 +1100 Subject: ibm_newemac: Fix possible lockup on close It's a bad idea to call flush_scheduled_work from within a netdev->stop because the linkwatch will occasionally take the rtnl lock from a workqueue context, and thus that can deadlock. This reworks things a bit in that area to avoid the problem. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/core.c | 31 ++++++++++++++++++++----------- drivers/net/ibm_newemac/core.h | 1 + 2 files changed, 21 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index 0de3aa2a2e4..eb0718b441b 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -642,9 +642,11 @@ static void emac_reset_work(struct work_struct *work) DBG(dev, "reset_work" NL); mutex_lock(&dev->link_lock); - emac_netif_stop(dev); - emac_full_tx_reset(dev); - emac_netif_start(dev); + if (dev->opened) { + emac_netif_stop(dev); + emac_full_tx_reset(dev); + emac_netif_start(dev); + } mutex_unlock(&dev->link_lock); } @@ -1063,10 +1065,9 @@ static int emac_open(struct net_device *ndev) dev->rx_sg_skb = NULL; mutex_lock(&dev->link_lock); + dev->opened = 1; - /* XXX Start PHY polling now. Shouldn't wr do like sungem instead and - * always poll the PHY even when the iface is down ? That would allow - * things like laptop-net to work. --BenH + /* Start PHY polling now. */ if (dev->phy.address >= 0) { int link_poll_interval; @@ -1145,9 +1146,11 @@ static void emac_link_timer(struct work_struct *work) int link_poll_interval; mutex_lock(&dev->link_lock); - DBG2(dev, "link timer" NL); + if (!dev->opened) + goto bail; + if (dev->phy.def->ops->poll_link(&dev->phy)) { if (!netif_carrier_ok(dev->ndev)) { /* Get new link parameters */ @@ -1170,13 +1173,14 @@ static void emac_link_timer(struct work_struct *work) link_poll_interval = PHY_POLL_LINK_OFF; } schedule_delayed_work(&dev->link_work, link_poll_interval); - + bail: mutex_unlock(&dev->link_lock); } static void emac_force_link_update(struct emac_instance *dev) { netif_carrier_off(dev->ndev); + smp_rmb(); if (dev->link_polling) { cancel_rearming_delayed_work(&dev->link_work); if (dev->link_polling) @@ -1191,11 +1195,14 @@ static int emac_close(struct net_device *ndev) DBG(dev, "close" NL); - if (dev->phy.address >= 0) + if (dev->phy.address >= 0) { + dev->link_polling = 0; cancel_rearming_delayed_work(&dev->link_work); - + } + mutex_lock(&dev->link_lock); emac_netif_stop(dev); - flush_scheduled_work(); + dev->opened = 0; + mutex_unlock(&dev->link_lock); emac_rx_disable(dev); emac_tx_disable(dev); @@ -2756,6 +2763,8 @@ static int __devexit emac_remove(struct of_device *ofdev) unregister_netdev(dev->ndev); + flush_scheduled_work(); + if (emac_has_feature(dev, EMAC_FTR_HAS_TAH)) tah_detach(dev->tah_dev, dev->tah_port); if (emac_has_feature(dev, EMAC_FTR_HAS_RGMII)) diff --git a/drivers/net/ibm_newemac/core.h b/drivers/net/ibm_newemac/core.h index 4011803117c..a010b2463fd 100644 --- a/drivers/net/ibm_newemac/core.h +++ b/drivers/net/ibm_newemac/core.h @@ -258,6 +258,7 @@ struct emac_instance { int stop_timeout; /* in us */ int no_mcast; int mcast_pending; + int opened; struct work_struct reset_work; spinlock_t lock; }; -- cgit v1.2.3 From 490dde8990c55662596a4be71b5070bd7d382d4a Mon Sep 17 00:00:00 2001 From: Ayaz Abdulla Date: Fri, 23 Nov 2007 20:54:01 -0500 Subject: forcedeth: new mcp79 pci ids This patch adds new device ids and features for mcp79 devices into the forcedeth driver. Signed-off-by: Ayaz Abdulla Signed-off-by: Jeff Garzik --- drivers/net/forcedeth.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers') diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 92ce2e38f0d..f9ba0ac92af 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -5613,6 +5613,22 @@ static struct pci_device_id pci_tbl[] = { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_35), .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, }, + { /* MCP79 Ethernet Controller */ + PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_36), + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + }, + { /* MCP79 Ethernet Controller */ + PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_37), + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + }, + { /* MCP79 Ethernet Controller */ + PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_38), + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + }, + { /* MCP79 Ethernet Controller */ + PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_39), + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT, + }, {0,}, }; -- cgit v1.2.3 From 9e555930bd873d238f5f7b9d76d3bf31e6e3ce93 Mon Sep 17 00:00:00 2001 From: Ayaz Abdulla Date: Wed, 21 Nov 2007 15:02:58 -0800 Subject: forcedeth boot delay fix Fix a long boot delay in the forcedeth driver. During initialization, the timeout for the handshake between mgmt unit and driver can be very long. The patch reduces the timeout by eliminating a extra loop around the timeout logic. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9308 Signed-off-by: Ayaz Abdulla Cc: Alex Howells Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/forcedeth.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index f9ba0ac92af..a96583cceb5 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -5286,19 +5286,15 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) { np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST; dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", pci_name(pci_dev), np->mac_in_use); - for (i = 0; i < 5000; i++) { - msleep(1); - if (nv_mgmt_acquire_sema(dev)) { - /* management unit setup the phy already? */ - if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) == - NVREG_XMITCTL_SYNC_PHY_INIT) { - /* phy is inited by mgmt unit */ - phyinitialized = 1; - dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev)); - } else { - /* we need to init the phy */ - } - break; + if (nv_mgmt_acquire_sema(dev)) { + /* management unit setup the phy already? */ + if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) == + NVREG_XMITCTL_SYNC_PHY_INIT) { + /* phy is inited by mgmt unit */ + phyinitialized = 1; + dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev)); + } else { + /* we need to init the phy */ } } } -- cgit v1.2.3 From 77b6901573066d6eadfcf66161a5768f3d2de9e9 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Thu, 15 Nov 2007 11:01:02 +0100 Subject: dm9601: Fix printk A printk in the error handling code of dm9601.c was missing a newline. Signed-off-by: Peter Korsgaard Signed-off-by: Jeff Garzik --- drivers/net/usb/dm9601.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index 2c685734b7a..1ffdd106f4c 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -94,7 +94,7 @@ static void dm_write_async_callback(struct urb *urb) struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; if (urb->status < 0) - printk(KERN_DEBUG "dm_write_async_callback() failed with %d", + printk(KERN_DEBUG "dm_write_async_callback() failed with %d\n", urb->status); kfree(req); -- cgit v1.2.3 From 3defd0ee74b8bec6977a34aae99939af6c007f84 Mon Sep 17 00:00:00 2001 From: Jiri Bohac Date: Wed, 21 Nov 2007 13:40:07 +0100 Subject: amd8111e: don't call napi_enable if configured w/o NAPI The amd8111e network driver was broken by bea3348eef27e6044b6161fd04c3152215f96411, which makes the driver call napi_enable() and napi_disable() even if the driver had been configured without CONFIG_AMD8111E_NAPI, and thus netif_napi_add() had not been called on initialization. This triggers a BUG in napi_enable(). This patch fixes the problem. Please apply. Signed-off-by: Jiri Bohac Signed-off-by: Jeff Garzik --- drivers/net/amd8111e.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/net/amd8111e.c b/drivers/net/amd8111e.c index eebf5bb2b03..e7fdd81919b 100644 --- a/drivers/net/amd8111e.c +++ b/drivers/net/amd8111e.c @@ -1340,7 +1340,9 @@ static int amd8111e_close(struct net_device * dev) struct amd8111e_priv *lp = netdev_priv(dev); netif_stop_queue(dev); +#ifdef CONFIG_AMD8111E_NAPI napi_disable(&lp->napi); +#endif spin_lock_irq(&lp->lock); @@ -1372,7 +1374,9 @@ static int amd8111e_open(struct net_device * dev ) dev->name, dev)) return -EAGAIN; +#ifdef CONFIG_AMD8111E_NAPI napi_enable(&lp->napi); +#endif spin_lock_irq(&lp->lock); @@ -1380,7 +1384,9 @@ static int amd8111e_open(struct net_device * dev ) if(amd8111e_restart(dev)){ spin_unlock_irq(&lp->lock); +#ifdef CONFIG_AMD8111E_NAPI napi_disable(&lp->napi); +#endif if (dev->irq) free_irq(dev->irq, dev); return -ENOMEM; -- cgit v1.2.3 From d0c4581b68922157da4e8071781b210043839a74 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Wed, 21 Nov 2007 15:28:06 +0100 Subject: smc911x: Fix undefined CONFIG_ symbol warning elif defined(CONFIG_*) should be used instead of elif CONFIG_* so GCC doesn't give warnings about undefined symbols when the config option is disabled. Signed-off-by: Jeff Garzik --- drivers/net/smc911x.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/smc911x.h b/drivers/net/smc911x.h index 16a0edc078f..d04e4fa3520 100644 --- a/drivers/net/smc911x.h +++ b/drivers/net/smc911x.h @@ -37,7 +37,7 @@ #define SMC_USE_16BIT 0 #define SMC_USE_32BIT 1 #define SMC_IRQ_SENSE IRQF_TRIGGER_FALLING -#elif CONFIG_SH_MAGIC_PANEL_R2 +#elif defined(CONFIG_SH_MAGIC_PANEL_R2) #define SMC_USE_SH_DMA 0 #define SMC_USE_16BIT 0 #define SMC_USE_32BIT 1 -- cgit v1.2.3 From a9b121c4df04d7fb508384480bb93f04916fb820 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Wed, 21 Nov 2007 15:34:15 +0100 Subject: smc911x: Fix unused variable warning. The smc911x_local pointer in smc911x_rcv is only used in the SMC_USE_DMA case. Move it under the #ifdef so GCC doesn't generate a warning in the non-DMA case. Signed-off-by: Jeff Garzik --- drivers/net/smc911x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index dd18af0ce67..69a78b32576 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -428,7 +428,6 @@ static inline void smc911x_drop_pkt(struct net_device *dev) */ static inline void smc911x_rcv(struct net_device *dev) { - struct smc911x_local *lp = netdev_priv(dev); unsigned long ioaddr = dev->base_addr; unsigned int pkt_len, status; struct sk_buff *skb; @@ -473,6 +472,7 @@ static inline void smc911x_rcv(struct net_device *dev) skb_put(skb,pkt_len-4); #ifdef SMC_USE_DMA { + struct smc911x_local *lp = netdev_priv(dev); unsigned int fifo; /* Lower the FIFO threshold if possible */ fifo = SMC_GET_FIFO_INT(); -- cgit v1.2.3 From 7393b87c9a538045c241d3eb5e2abf37e25ca3d3 Mon Sep 17 00:00:00 2001 From: Thomas Klein Date: Wed, 21 Nov 2007 17:37:58 +0100 Subject: ehea: Improve tx packets counting Using own tx_packets counter instead of firmware counters. Signed-off-by: Thomas Klein Signed-off-by: Jeff Garzik --- drivers/net/ehea/ehea.h | 2 +- drivers/net/ehea/ehea_main.c | 9 +++++++-- 2 files changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h index f78e5bf7cb3..ea67615320c 100644 --- a/drivers/net/ehea/ehea.h +++ b/drivers/net/ehea/ehea.h @@ -40,7 +40,7 @@ #include #define DRV_NAME "ehea" -#define DRV_VERSION "EHEA_0080" +#define DRV_VERSION "EHEA_0082" /* eHEA capability flags */ #define DLPAR_PORT_ADD_REM 1 diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index f0319f1e8e0..d2f715d8007 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -136,7 +136,7 @@ static struct net_device_stats *ehea_get_stats(struct net_device *dev) struct ehea_port *port = netdev_priv(dev); struct net_device_stats *stats = &port->stats; struct hcp_ehea_port_cb2 *cb2; - u64 hret, rx_packets; + u64 hret, rx_packets, tx_packets; int i; memset(stats, 0, sizeof(*stats)); @@ -162,7 +162,11 @@ static struct net_device_stats *ehea_get_stats(struct net_device *dev) for (i = 0; i < port->num_def_qps; i++) rx_packets += port->port_res[i].rx_packets; - stats->tx_packets = cb2->txucp + cb2->txmcp + cb2->txbcp; + tx_packets = 0; + for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) + tx_packets += port->port_res[i].tx_packets; + + stats->tx_packets = tx_packets; stats->multicast = cb2->rxmcp; stats->rx_errors = cb2->rxuerr; stats->rx_bytes = cb2->rxo; @@ -2000,6 +2004,7 @@ static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev) } ehea_post_swqe(pr->qp, swqe); + pr->tx_packets++; if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { spin_lock_irqsave(&pr->netif_queue, flags); -- cgit v1.2.3 From 58dd8258fccbb68e0d0e1898038442822cb833c0 Mon Sep 17 00:00:00 2001 From: Thomas Klein Date: Wed, 21 Nov 2007 17:42:27 +0100 Subject: ehea: Reworked rcv queue handling to log only fatal errors Prevent driver from brawly logging packet checksum errors. Signed-off-by: Thomas Klein Signed-off-by: Jeff Garzik --- drivers/net/ehea/ehea.h | 2 +- drivers/net/ehea/ehea_main.c | 11 +++++------ drivers/net/ehea/ehea_qmr.h | 4 ++-- 3 files changed, 8 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h index ea67615320c..5f82a4647ee 100644 --- a/drivers/net/ehea/ehea.h +++ b/drivers/net/ehea/ehea.h @@ -40,7 +40,7 @@ #include #define DRV_NAME "ehea" -#define DRV_VERSION "EHEA_0082" +#define DRV_VERSION "EHEA_0083" /* eHEA capability flags */ #define DLPAR_PORT_ADD_REM 1 diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index d2f715d8007..869e1604b16 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -410,11 +410,6 @@ static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, if (cqe->status & EHEA_CQE_STAT_ERR_CRC) pr->p_stats.err_frame_crc++; - if (netif_msg_rx_err(pr->port)) { - ehea_error("CQE Error for QP %d", pr->qp->init_attr.qp_nr); - ehea_dump(cqe, sizeof(*cqe), "CQE"); - } - if (rq == 2) { *processed_rq2 += 1; skb = get_skb_by_index(pr->rq2_skba.arr, pr->rq2_skba.len, cqe); @@ -426,7 +421,11 @@ static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, } if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) { - ehea_error("Critical receive error. Resetting port."); + if (netif_msg_rx_err(pr->port)) { + ehea_error("Critical receive error for QP %d. " + "Resetting port.", pr->qp->init_attr.qp_nr); + ehea_dump(cqe, sizeof(*cqe), "CQE"); + } schedule_work(&pr->port->reset_task); return 1; } diff --git a/drivers/net/ehea/ehea_qmr.h b/drivers/net/ehea/ehea_qmr.h index 562de0ebdd8..bc62d389c16 100644 --- a/drivers/net/ehea/ehea_qmr.h +++ b/drivers/net/ehea/ehea_qmr.h @@ -145,8 +145,8 @@ struct ehea_rwqe { #define EHEA_CQE_VLAN_TAG_XTRACT 0x0400 #define EHEA_CQE_TYPE_RQ 0x60 -#define EHEA_CQE_STAT_ERR_MASK 0x720F -#define EHEA_CQE_STAT_FAT_ERR_MASK 0x1F +#define EHEA_CQE_STAT_ERR_MASK 0x700F +#define EHEA_CQE_STAT_FAT_ERR_MASK 0xF #define EHEA_CQE_STAT_ERR_TCP 0x4000 #define EHEA_CQE_STAT_ERR_IP 0x2000 #define EHEA_CQE_STAT_ERR_CRC 0x1000 -- cgit v1.2.3 From 8b31cfbcd1b54362ef06c85beb40e65a349169a2 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 21 Nov 2007 14:55:26 -0800 Subject: sky2: disable rx checksum on Yukon XL The Marvell Yukon XL chipset appears to have a hardware glitch where it will repeat the checksum of the last packet. Of course, this is timing sensitive and only happens sometimes... More info: http://bugzilla.kernel.org/show_bug.cgi?id=9381 As a workaround just disable hardware checksumming by default on this chip version. The earlier workaround for PCIX, dual port was also on Yukon XL so don't need to disable checksumming there. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index a2070db725c..8c4c7430d90 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -1320,15 +1320,11 @@ static int sky2_up(struct net_device *dev) */ if (otherdev && netif_running(otherdev) && (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) { - struct sky2_port *osky2 = netdev_priv(otherdev); u16 cmd; pci_read_config_word(hw->pdev, cap + PCI_X_CMD, &cmd); cmd &= ~PCI_X_CMD_MAX_SPLIT; pci_write_config_word(hw->pdev, cap + PCI_X_CMD, cmd); - - sky2->rx_csum = 0; - osky2->rx_csum = 0; } if (netif_msg_ifup(sky2)) @@ -4013,7 +4009,7 @@ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw, sky2->duplex = -1; sky2->speed = -1; sky2->advertising = sky2_supported_modes(hw); - sky2->rx_csum = 1; + sky2->rx_csum = (hw->chip_id != CHIP_ID_YUKON_XL); sky2->wol = wol; spin_lock_init(&sky2->phy_lock); -- cgit v1.2.3 From 7b31f7ffa9ed7ba5fbe1cab8fb17a8c545e6a0eb Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Thu, 22 Nov 2007 12:25:13 +0100 Subject: smc911x: Fix multicast handling smc911x_set_multicast_list fails to fill out the multicast hash table correctly; Bit 1 was used rather than bit 5 to decide if the lower or upper register should be used. The function is at the same time cleaned up by calling ether_crc rather than using it's own bit reversal table. Signed-off-by: Peter Korsgaard Signed-off-by: Jeff Garzik --- drivers/net/smc911x.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index 69a78b32576..1a3d80bfe9e 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -1379,13 +1379,6 @@ static void smc911x_set_multicast_list(struct net_device *dev) unsigned int multicast_table[2]; unsigned int mcr, update_multicast = 0; unsigned long flags; - /* table for flipping the order of 5 bits */ - static const unsigned char invert5[] = - {0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0C, 0x1C, - 0x02, 0x12, 0x0A, 0x1A, 0x06, 0x16, 0x0E, 0x1E, - 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0D, 0x1D, - 0x03, 0x13, 0x0B, 0x1B, 0x07, 0x17, 0x0F, 0x1F}; - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __FUNCTION__); @@ -1432,7 +1425,7 @@ static void smc911x_set_multicast_list(struct net_device *dev) cur_addr = dev->mc_list; for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) { - int position; + u32 position; /* do we have a pointer here? */ if (!cur_addr) @@ -1442,12 +1435,10 @@ static void smc911x_set_multicast_list(struct net_device *dev) if (!(*cur_addr->dmi_addr & 1)) continue; - /* only use the low order bits */ - position = crc32_le(~0, cur_addr->dmi_addr, 6) & 0x3f; + /* upper 6 bits are used as hash index */ + position = ether_crc(ETH_ALEN, cur_addr->dmi_addr)>>26; - /* do some messy swapping to put the bit in the right spot */ - multicast_table[invert5[position&0x1F]&0x1] |= - (1<>1)&0x1F]); + multicast_table[position>>5] |= 1 << (position&0x1f); } /* be sure I get rid of flags I might have set */ -- cgit v1.2.3 From 65809b5125d61e0c8a7f6c0a5431450eaf853820 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Fri, 23 Nov 2007 01:30:15 +0200 Subject: NET: dmfe: don't access configuration space in D3 state Accidently I reversed the order of pci_save_state and pci_set_power_state in .suspend()/.resume() callbacks Signed-off-by: Maxim Levitsky Signed-off-by: Jeff Garzik --- drivers/net/tulip/dmfe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c index ca90566d5bc..208dae74525 100644 --- a/drivers/net/tulip/dmfe.c +++ b/drivers/net/tulip/dmfe.c @@ -2118,8 +2118,8 @@ static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state) pci_enable_wake(pci_dev, PCI_D3cold, 1); /* Power down device*/ - pci_set_power_state(pci_dev, pci_choose_state (pci_dev,state)); pci_save_state(pci_dev); + pci_set_power_state(pci_dev, pci_choose_state (pci_dev,state)); return 0; } @@ -2129,8 +2129,8 @@ static int dmfe_resume(struct pci_dev *pci_dev) struct net_device *dev = pci_get_drvdata(pci_dev); u32 tmp; - pci_restore_state(pci_dev); pci_set_power_state(pci_dev, PCI_D0); + pci_restore_state(pci_dev); /* Re-initilize DM910X board */ dmfe_init_dm910x(dev); -- cgit v1.2.3 From 95af9feb493daf1d07223acdaaea9a3c9cc7a943 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 23 Nov 2007 17:55:50 +0800 Subject: Blackfin SMC91x Driver: punt CONFIG_BFIN -- we already have CONFIG_BLACKFIN Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu Signed-off-by: Jeff Garzik --- drivers/net/Kconfig | 2 +- drivers/net/smc91x.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index e8d69b0adf9..1437b37a6b9 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -888,7 +888,7 @@ config SMC91X tristate "SMC 91C9x/91C1xxx support" select CRC32 select MII - depends on ARM || REDWOOD_5 || REDWOOD_6 || M32R || SUPERH || SOC_AU1X00 || BFIN + depends on ARM || REDWOOD_5 || REDWOOD_6 || M32R || SUPERH || SOC_AU1X00 || BLACKFIN help This is a driver for SMC's 91x series of Ethernet chipsets, including the SMC91C94 and the SMC91C111. Say Y if you want it diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h index db34e1eb67e..07b7f7120e3 100644 --- a/drivers/net/smc91x.h +++ b/drivers/net/smc91x.h @@ -55,7 +55,7 @@ #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l) #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l) -#elif defined(CONFIG_BFIN) +#elif defined(CONFIG_BLACKFIN) #define SMC_IRQ_FLAGS IRQF_TRIGGER_HIGH #define RPC_LSA_DEFAULT RPC_LED_100_10 -- cgit v1.2.3 From 00ff49a91e524ec5cb593380186d5d514876c417 Mon Sep 17 00:00:00 2001 From: Vitja Makarov Date: Fri, 23 Nov 2007 17:55:51 +0800 Subject: Blackfin EMAC driver: fix bug - NAT doesn't work with bfin_mac driver https://blackfin.uclinux.org/gf/project/uclinux-dist/forum/?action=ForumBrowse&forum_id=39&thread_id=23114&_forum_action=ForumMessageBrowse Today I was dealing with the same problem, on my custom bf537 board, and bfin_mac driver. I found that the problem is in setting ip_summed flag of skbuff structure, Signed-off-by: Vitja Makarov Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu Signed-off-by: Jeff Garzik --- drivers/net/bfin_mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index 084acfd6fc5..f0f85169389 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -676,7 +676,7 @@ static void bf537mac_rx(struct net_device *dev) skb->protocol = eth_type_trans(skb, dev); #if defined(BFIN_MAC_CSUM_OFFLOAD) skb->csum = current_rx_ptr->status.ip_payload_csum; - skb->ip_summed = CHECKSUM_PARTIAL; + skb->ip_summed = CHECKSUM_COMPLETE; #endif netif_rx(skb); -- cgit v1.2.3 From a31e23e15cbb9734c5883a4a7f58d8712d303e0b Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Fri, 23 Nov 2007 22:13:19 -0500 Subject: dmfe: checkpatch fix (add whitespace) Signed-off-by: Jeff Garzik --- drivers/net/tulip/dmfe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c index 208dae74525..b4891caeae5 100644 --- a/drivers/net/tulip/dmfe.c +++ b/drivers/net/tulip/dmfe.c @@ -2119,7 +2119,7 @@ static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state) /* Power down device*/ pci_save_state(pci_dev); - pci_set_power_state(pci_dev, pci_choose_state (pci_dev,state)); + pci_set_power_state(pci_dev, pci_choose_state (pci_dev, state)); return 0; } -- cgit v1.2.3 From 1e641664301744f0d381de43ae1e12343e60b479 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Sun, 11 Nov 2007 19:52:05 -0500 Subject: [SCSI] NCR5380: Fix bugs and canonicalize irq handler usage * Always pass the same value to free_irq() that we pass to request_irq(). This fixes several bugs. * Always call NCR5380_intr() with 'irq' and 'dev_id' arguments. Note, scsi_falcon_intr() is the only case now where dev_id is not the scsi_host. * Always pass Scsi_Host to request_irq(). For most cases, the drivers already did so, and I merely neated the source code line. In other cases, either NULL or a non-sensical value was passed, verified to be unused, then changed to be Scsi_Host in anticipation of the future. In addition to the bugs fixes, this change makes the interface usage consistent, which in turn enables the possibility of directly referencing Scsi_Host from all NCR5380_intr() invocations. Signed-off-by: Jeff Garzik Signed-off-by: James Bottomley --- drivers/scsi/atari_scsi.c | 10 +++++----- drivers/scsi/dtc.c | 5 +++-- drivers/scsi/g_NCR5380.c | 5 +++-- drivers/scsi/mac_scsi.c | 4 ++-- drivers/scsi/pas16.c | 5 +++-- drivers/scsi/sun3_scsi.c | 4 ++-- drivers/scsi/sun3_scsi_vme.c | 4 ++-- drivers/scsi/t128.c | 5 +++-- 8 files changed, 23 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c index 6f8403b82ba..f5732d8f67f 100644 --- a/drivers/scsi/atari_scsi.c +++ b/drivers/scsi/atari_scsi.c @@ -393,7 +393,7 @@ static irqreturn_t scsi_tt_intr(int irq, void *dummy) #endif /* REAL_DMA */ - NCR5380_intr(0, 0); + NCR5380_intr(irq, dummy); #if 0 /* To be sure the int is not masked */ @@ -458,7 +458,7 @@ static irqreturn_t scsi_falcon_intr(int irq, void *dummy) #endif /* REAL_DMA */ - NCR5380_intr(0, 0); + NCR5380_intr(irq, dummy); return IRQ_HANDLED; } @@ -684,7 +684,7 @@ int atari_scsi_detect(struct scsi_host_template *host) * interrupt after having cleared the pending flag for the DMA * interrupt. */ if (request_irq(IRQ_TT_MFP_SCSI, scsi_tt_intr, IRQ_TYPE_SLOW, - "SCSI NCR5380", scsi_tt_intr)) { + "SCSI NCR5380", instance)) { printk(KERN_ERR "atari_scsi_detect: cannot allocate irq %d, aborting",IRQ_TT_MFP_SCSI); scsi_unregister(atari_scsi_host); atari_stram_free(atari_dma_buffer); @@ -701,7 +701,7 @@ int atari_scsi_detect(struct scsi_host_template *host) IRQ_TYPE_PRIO, "Hades DMA emulator", hades_dma_emulator)) { printk(KERN_ERR "atari_scsi_detect: cannot allocate irq %d, aborting (MACH_IS_HADES)",IRQ_AUTO_2); - free_irq(IRQ_TT_MFP_SCSI, scsi_tt_intr); + free_irq(IRQ_TT_MFP_SCSI, instance); scsi_unregister(atari_scsi_host); atari_stram_free(atari_dma_buffer); atari_dma_buffer = 0; @@ -761,7 +761,7 @@ int atari_scsi_detect(struct scsi_host_template *host) int atari_scsi_release(struct Scsi_Host *sh) { if (IS_A_TT()) - free_irq(IRQ_TT_MFP_SCSI, scsi_tt_intr); + free_irq(IRQ_TT_MFP_SCSI, sh); if (atari_dma_buffer) atari_stram_free(atari_dma_buffer); return 1; diff --git a/drivers/scsi/dtc.c b/drivers/scsi/dtc.c index 2596165096d..c2677ba29c7 100644 --- a/drivers/scsi/dtc.c +++ b/drivers/scsi/dtc.c @@ -277,7 +277,8 @@ found: /* With interrupts enabled, it will sometimes hang when doing heavy * reads. So better not enable them until I finger it out. */ if (instance->irq != SCSI_IRQ_NONE) - if (request_irq(instance->irq, dtc_intr, IRQF_DISABLED, "dtc", instance)) { + if (request_irq(instance->irq, dtc_intr, IRQF_DISABLED, + "dtc", instance)) { printk(KERN_ERR "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); instance->irq = SCSI_IRQ_NONE; } @@ -459,7 +460,7 @@ static int dtc_release(struct Scsi_Host *shost) NCR5380_local_declare(); NCR5380_setup(shost); if (shost->irq) - free_irq(shost->irq, NULL); + free_irq(shost->irq, shost); NCR5380_exit(shost); if (shost->io_port && shost->n_io_port) release_region(shost->io_port, shost->n_io_port); diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index 607336f56d5..75585a52c88 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -460,7 +460,8 @@ int __init generic_NCR5380_detect(struct scsi_host_template * tpnt) instance->irq = NCR5380_probe_irq(instance, 0xffff); if (instance->irq != SCSI_IRQ_NONE) - if (request_irq(instance->irq, generic_NCR5380_intr, IRQF_DISABLED, "NCR5380", instance)) { + if (request_irq(instance->irq, generic_NCR5380_intr, + IRQF_DISABLED, "NCR5380", instance)) { printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); instance->irq = SCSI_IRQ_NONE; } @@ -513,7 +514,7 @@ int generic_NCR5380_release_resources(struct Scsi_Host *instance) NCR5380_setup(instance); if (instance->irq != SCSI_IRQ_NONE) - free_irq(instance->irq, NULL); + free_irq(instance->irq, instance); NCR5380_exit(instance); #ifndef CONFIG_SCSI_G_NCR5380_MEM diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c index abe2bda6ac3..3b09ab21d70 100644 --- a/drivers/scsi/mac_scsi.c +++ b/drivers/scsi/mac_scsi.c @@ -303,7 +303,7 @@ int macscsi_detect(struct scsi_host_template * tpnt) if (instance->irq != SCSI_IRQ_NONE) if (request_irq(instance->irq, NCR5380_intr, IRQ_FLG_SLOW, - "ncr5380", instance)) { + "ncr5380", instance)) { printk(KERN_WARNING "scsi%d: IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); instance->irq = SCSI_IRQ_NONE; @@ -326,7 +326,7 @@ int macscsi_detect(struct scsi_host_template * tpnt) int macscsi_release (struct Scsi_Host *shpnt) { if (shpnt->irq != SCSI_IRQ_NONE) - free_irq (shpnt->irq, NCR5380_intr); + free_irq(shpnt->irq, shpnt); NCR5380_exit(shpnt); return 0; diff --git a/drivers/scsi/pas16.c b/drivers/scsi/pas16.c index ee596565997..f2018b46f49 100644 --- a/drivers/scsi/pas16.c +++ b/drivers/scsi/pas16.c @@ -453,7 +453,8 @@ int __init pas16_detect(struct scsi_host_template * tpnt) instance->irq = NCR5380_probe_irq(instance, PAS16_IRQS); if (instance->irq != SCSI_IRQ_NONE) - if (request_irq(instance->irq, pas16_intr, IRQF_DISABLED, "pas16", instance)) { + if (request_irq(instance->irq, pas16_intr, IRQF_DISABLED, + "pas16", instance)) { printk("scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); instance->irq = SCSI_IRQ_NONE; @@ -604,7 +605,7 @@ static inline int NCR5380_pwrite (struct Scsi_Host *instance, unsigned char *src static int pas16_release(struct Scsi_Host *shost) { if (shost->irq) - free_irq(shost->irq, NULL); + free_irq(shost->irq, shost); NCR5380_exit(shost); if (shost->dma_channel != 0xff) free_dma(shost->dma_channel); diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c index 5e46d842c6f..e606cf0a2eb 100644 --- a/drivers/scsi/sun3_scsi.c +++ b/drivers/scsi/sun3_scsi.c @@ -268,7 +268,7 @@ int sun3scsi_detect(struct scsi_host_template * tpnt) ((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0; if (request_irq(instance->irq, scsi_sun3_intr, - 0, "Sun3SCSI-5380", NULL)) { + 0, "Sun3SCSI-5380", instance)) { #ifndef REAL_DMA printk("scsi%d: IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); @@ -310,7 +310,7 @@ int sun3scsi_detect(struct scsi_host_template * tpnt) int sun3scsi_release (struct Scsi_Host *shpnt) { if (shpnt->irq != SCSI_IRQ_NONE) - free_irq (shpnt->irq, NULL); + free_irq(shpnt->irq, shpnt); iounmap((void *)sun3_scsi_regp); diff --git a/drivers/scsi/sun3_scsi_vme.c b/drivers/scsi/sun3_scsi_vme.c index 7cb4a31453e..02d9727f017 100644 --- a/drivers/scsi/sun3_scsi_vme.c +++ b/drivers/scsi/sun3_scsi_vme.c @@ -230,7 +230,7 @@ static int sun3scsi_detect(struct scsi_host_template * tpnt) ((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0; if (request_irq(instance->irq, scsi_sun3_intr, - 0, "Sun3SCSI-5380VME", NULL)) { + 0, "Sun3SCSI-5380VME", instance)) { #ifndef REAL_DMA printk("scsi%d: IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); @@ -279,7 +279,7 @@ static int sun3scsi_detect(struct scsi_host_template * tpnt) int sun3scsi_release (struct Scsi_Host *shpnt) { if (shpnt->irq != SCSI_IRQ_NONE) - free_irq (shpnt->irq, NULL); + free_irq(shpnt->irq, shpnt); iounmap((void *)sun3_scsi_regp); diff --git a/drivers/scsi/t128.c b/drivers/scsi/t128.c index 248d60b8d89..041eaaace2c 100644 --- a/drivers/scsi/t128.c +++ b/drivers/scsi/t128.c @@ -259,7 +259,8 @@ found: instance->irq = NCR5380_probe_irq(instance, T128_IRQS); if (instance->irq != SCSI_IRQ_NONE) - if (request_irq(instance->irq, t128_intr, IRQF_DISABLED, "t128", instance)) { + if (request_irq(instance->irq, t128_intr, IRQF_DISABLED, "t128", + instance)) { printk("scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); instance->irq = SCSI_IRQ_NONE; @@ -295,7 +296,7 @@ static int t128_release(struct Scsi_Host *shost) NCR5380_local_declare(); NCR5380_setup(shost); if (shost->irq) - free_irq(shost->irq, NULL); + free_irq(shost->irq, shost); NCR5380_exit(shost); if (shost->io_port && shost->n_io_port) release_region(shost->io_port, shost->n_io_port); -- cgit v1.2.3 From dde655c9df02ee07ed090dfdb7ae8741bf299e14 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 29 Nov 2007 21:51:36 +1100 Subject: [SUNGEM]: Fix NAPI regression with reset work sungem's gem_reset_task() will unconditionally try to disable NAPI even when it's called while the interface is not operating and hence the NAPI struct isn't enabled. Make napi_disable() depend on gp->running. Also removes a superfluous test of gp->running in the same function. Signed-off-by: Johannes Berg Signed-off-by: Herbert Xu --- drivers/net/sungem.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c index f6fedcc32de..68872142530 100644 --- a/drivers/net/sungem.c +++ b/drivers/net/sungem.c @@ -2281,14 +2281,12 @@ static void gem_reset_task(struct work_struct *work) mutex_lock(&gp->pm_mutex); - napi_disable(&gp->napi); + if (gp->opened) + napi_disable(&gp->napi); spin_lock_irq(&gp->lock); spin_lock(&gp->tx_lock); - if (gp->running == 0) - goto not_running; - if (gp->running) { netif_stop_queue(gp->dev); @@ -2298,13 +2296,14 @@ static void gem_reset_task(struct work_struct *work) gem_set_link_modes(gp); netif_wake_queue(gp->dev); } - not_running: + gp->reset_task_pending = 0; spin_unlock(&gp->tx_lock); spin_unlock_irq(&gp->lock); - napi_enable(&gp->napi); + if (gp->opened) + napi_enable(&gp->napi); mutex_unlock(&gp->pm_mutex); } -- cgit v1.2.3 From c4ba9621f4f241f8c4d4f620ad4257af59d21f3e Mon Sep 17 00:00:00 2001 From: Saleem Abdulrasool Date: Sun, 18 Nov 2007 23:59:08 -0800 Subject: iwlwifi: fix possible NULL dereference in iwl_set_rate() Signed-off-by: Saleem Abdulrasool Signed-off-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl3945-base.c | 4 ++++ drivers/net/wireless/iwlwifi/iwl4965-base.c | 4 ++++ 2 files changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 465da4f67ce..5751c89857f 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -2915,6 +2915,10 @@ static void iwl_set_rate(struct iwl_priv *priv) int i; hw = iwl_get_hw_mode(priv, priv->phymode); + if (!hw) { + IWL_ERROR("Failed to set rate: unable to get hw mode\n"); + return; + } priv->active_rate = 0; priv->active_rate_basic = 0; diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 9918780f5e8..0b22e017357 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -3003,6 +3003,10 @@ static void iwl_set_rate(struct iwl_priv *priv) int i; hw = iwl_get_hw_mode(priv, priv->phymode); + if (!hw) { + IWL_ERROR("Failed to set rate: unable to get hw mode\n"); + return; + } priv->active_rate = 0; priv->active_rate_basic = 0; -- cgit v1.2.3 From 354807e0dd24fa6ad25df614419c1ae8f1a23b47 Mon Sep 17 00:00:00 2001 From: Stefano Brivio Date: Mon, 19 Nov 2007 20:21:31 +0100 Subject: b43/b43legacy: fix left-over URLs and ifdefs Fix some left-over URLs and ifdefs in b43 and b43legacy drivers. Signed-off-by: Stefano Brivio Signed-off-by: John W. Linville --- drivers/net/wireless/b43/main.c | 2 +- drivers/net/wireless/b43legacy/dma.c | 2 +- drivers/net/wireless/b43legacy/main.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 2b17c1dc46f..b45eecc53c4 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -1566,7 +1566,7 @@ static void b43_release_firmware(struct b43_wldev *dev) static void b43_print_fw_helptext(struct b43_wl *wl) { b43err(wl, "You must go to " - "http://linuxwireless.org/en/users/Drivers/bcm43xx#devicefirmware " + "http://linuxwireless.org/en/users/Drivers/b43#devicefirmware " "and download the correct firmware (version 4).\n"); } diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c index 8cb3dc4c474..83161d9af81 100644 --- a/drivers/net/wireless/b43legacy/dma.c +++ b/drivers/net/wireless/b43legacy/dma.c @@ -996,7 +996,7 @@ int b43legacy_dma_init(struct b43legacy_wldev *dev) err = ssb_dma_set_mask(dev->dev, dmamask); if (err) { -#ifdef BCM43XX_PIO +#ifdef CONFIG_B43LEGACY_PIO b43legacywarn(dev->wl, "DMA for this device not supported. " "Falling back to PIO\n"); dev->__using_pio = 1; diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 3bde1e9ab42..32d5e1785bd 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -1419,7 +1419,7 @@ static void b43legacy_release_firmware(struct b43legacy_wldev *dev) static void b43legacy_print_fw_helptext(struct b43legacy_wl *wl) { b43legacyerr(wl, "You must go to http://linuxwireless.org/en/users/" - "Drivers/bcm43xx#devicefirmware " + "Drivers/b43#devicefirmware " "and download the correct firmware (version 3).\n"); } -- cgit v1.2.3 From 8376e7a3c2cbf2c91215c35fec9988f581fc699a Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 19 Nov 2007 17:48:27 -0800 Subject: drivers/net/wireless: Add missing "space" Signed-off-by: Joe Perches Signed-off-by: John W. Linville --- drivers/net/wireless/b43/phy.c | 2 +- drivers/net/wireless/b43legacy/phy.c | 2 +- drivers/net/wireless/bcm43xx/bcm43xx_phy.c | 2 +- drivers/net/wireless/libertas/wext.c | 2 +- drivers/net/wireless/netwave_cs.c | 2 +- drivers/net/wireless/p54usb.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/b43/phy.c b/drivers/net/wireless/b43/phy.c index 3d4ed647c31..7ff091e69f0 100644 --- a/drivers/net/wireless/b43/phy.c +++ b/drivers/net/wireless/b43/phy.c @@ -2214,7 +2214,7 @@ int b43_phy_init_tssi2dbm_table(struct b43_wldev *dev) } dyn_tssi2dbm = kmalloc(64, GFP_KERNEL); if (dyn_tssi2dbm == NULL) { - b43err(dev->wl, "Could not allocate memory" + b43err(dev->wl, "Could not allocate memory " "for tssi2dbm table\n"); return -ENOMEM; } diff --git a/drivers/net/wireless/b43legacy/phy.c b/drivers/net/wireless/b43legacy/phy.c index 22a4b3d0186..491e518e4ae 100644 --- a/drivers/net/wireless/b43legacy/phy.c +++ b/drivers/net/wireless/b43legacy/phy.c @@ -2020,7 +2020,7 @@ int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev) phy->idle_tssi = 62; dyn_tssi2dbm = kmalloc(64, GFP_KERNEL); if (dyn_tssi2dbm == NULL) { - b43legacyerr(dev->wl, "Could not allocate memory" + b43legacyerr(dev->wl, "Could not allocate memory " "for tssi2dbm table\n"); return -ENOMEM; } diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_phy.c b/drivers/net/wireless/bcm43xx/bcm43xx_phy.c index b37f1e34870..af3de334365 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_phy.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_phy.c @@ -2149,7 +2149,7 @@ int bcm43xx_phy_init_tssi2dbm_table(struct bcm43xx_private *bcm) } dyn_tssi2dbm = kmalloc(64, GFP_KERNEL); if (dyn_tssi2dbm == NULL) { - printk(KERN_ERR PFX "Could not allocate memory" + printk(KERN_ERR PFX "Could not allocate memory " "for tssi2dbm table\n"); return -ENOMEM; } diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c index c6f5aa3cb46..395b7882d4d 100644 --- a/drivers/net/wireless/libertas/wext.c +++ b/drivers/net/wireless/libertas/wext.c @@ -1528,7 +1528,7 @@ static int wlan_set_encodeext(struct net_device *dev, && (ext->key_len != KEY_LEN_WPA_TKIP)) || ((alg == IW_ENCODE_ALG_CCMP) && (ext->key_len != KEY_LEN_WPA_AES))) { - lbs_deb_wext("invalid size %d for key of alg" + lbs_deb_wext("invalid size %d for key of alg " "type %d\n", ext->key_len, alg); diff --git a/drivers/net/wireless/netwave_cs.c b/drivers/net/wireless/netwave_cs.c index 2402cb8dd32..d2fa079fbc4 100644 --- a/drivers/net/wireless/netwave_cs.c +++ b/drivers/net/wireless/netwave_cs.c @@ -806,7 +806,7 @@ static int netwave_pcmcia_config(struct pcmcia_device *link) { for (i = 0; i < 6; i++) dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i); - printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx" + printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx, " "id %c%c, hw_addr %s\n", dev->name, dev->base_addr, dev->irq, (u_long) ramBase, diff --git a/drivers/net/wireless/p54usb.c b/drivers/net/wireless/p54usb.c index 755482a5a93..60d286eb0b8 100644 --- a/drivers/net/wireless/p54usb.c +++ b/drivers/net/wireless/p54usb.c @@ -308,7 +308,7 @@ static int p54u_read_eeprom(struct ieee80211_hw *dev) buf = kmalloc(0x2020, GFP_KERNEL); if (!buf) { - printk(KERN_ERR "prism54usb: cannot allocate memory for" + printk(KERN_ERR "prism54usb: cannot allocate memory for " "eeprom readback!\n"); return -ENOMEM; } -- cgit v1.2.3 From d0a689575102641149e67595e45ab006dbbb4a0d Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 24 Nov 2007 19:48:17 +0000 Subject: libertas: Don't set NETIF_F_IPV6_CSUM in dev->features I'm not sure why it was doing this, and I'm not sure I _want_ to know why. But calling it NETIF_F_DYNALLOC doesn't change the fact that the kernel believes it to be NETIF_F_IPV6_CSUM, and that IPv6 communication is hence buggered. Signed-off-by: David Woodhouse Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/main.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 5ead08312e1..1823b48a8ba 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -1165,8 +1165,6 @@ wlan_private *libertas_add_card(void *card, struct device *dmdev) #ifdef WIRELESS_EXT dev->wireless_handlers = (struct iw_handler_def *)&libertas_handler_def; #endif -#define NETIF_F_DYNALLOC 16 - dev->features |= NETIF_F_DYNALLOC; dev->flags |= IFF_BROADCAST | IFF_MULTICAST; dev->set_multicast_list = libertas_set_multicast_list; @@ -1348,8 +1346,6 @@ int libertas_add_mesh(wlan_private *priv, struct device *dev) #ifdef WIRELESS_EXT mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def; #endif -#define NETIF_F_DYNALLOC 16 - /* Register virtual mesh interface */ ret = register_netdev(mesh_dev); if (ret) { -- cgit v1.2.3 From 6591e36a1c52445f95f26738394909ee9bf94390 Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Mon, 26 Nov 2007 09:35:44 +0100 Subject: libertas: let more than one MAC event through lbs_mac_event_disconnected() was called once and then never again upon a hardware MAC event. The reason was that the driver didn't clean the correct bit in the interrupt cause register of the chip. Signed-off-by: Holger Schurig Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_cs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index ec89dabc412..ba4fc2b3bf0 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -170,7 +170,8 @@ static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 r #define IF_CS_H_IC_TX_OVER 0x0001 #define IF_CS_H_IC_RX_OVER 0x0002 #define IF_CS_H_IC_DNLD_OVER 0x0004 -#define IF_CS_H_IC_HOST_EVENT 0x0008 +#define IF_CS_H_IC_POWER_DOWN 0x0008 +#define IF_CS_H_IC_HOST_EVENT 0x0010 #define IF_CS_H_IC_MASK 0x001f #define IF_CS_H_INT_MASK 0x00000004 -- cgit v1.2.3 From 864792e3d93a89496e02ca21b2e2eeba0aa857ad Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Tue, 27 Nov 2007 21:00:52 +0200 Subject: iwlwifi: fix iwl_mac_add_interface handler This patch fixes iwl_mac_add_interface. 1. Currently only one interface is supported, instead of silently retuning 0 now it returns -EOPNOTSUPP (By Johannes Berg) 2. It enables changing mac address from user space (By Ian Schram) Signed-off-by: Tomas Winkler Cc: Zhu Yi Cc: Reinette Chatre Cc: linux-wireless Cc: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl3945-base.c | 11 +++++++---- drivers/net/wireless/iwlwifi/iwl4965-base.c | 8 +++++--- 2 files changed, 12 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 5751c89857f..ae89a0f2c79 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -6940,13 +6940,10 @@ static int iwl_mac_add_interface(struct ieee80211_hw *hw, DECLARE_MAC_BUF(mac); IWL_DEBUG_MAC80211("enter: id %d, type %d\n", conf->if_id, conf->type); - if (conf->mac_addr) - IWL_DEBUG_MAC80211("enter: MAC %s\n", - print_mac(mac, conf->mac_addr)); if (priv->interface_id) { IWL_DEBUG_MAC80211("leave - interface_id != 0\n"); - return 0; + return -EOPNOTSUPP; } spin_lock_irqsave(&priv->lock, flags); @@ -6955,6 +6952,12 @@ static int iwl_mac_add_interface(struct ieee80211_hw *hw, spin_unlock_irqrestore(&priv->lock, flags); mutex_lock(&priv->mutex); + + if (conf->mac_addr) { + IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac, conf->mac_addr)); + memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); + } + iwl_set_mode(priv, conf->type); IWL_DEBUG_MAC80211("leave\n"); diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 0b22e017357..22d3bbc7be5 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -7330,9 +7330,6 @@ static int iwl_mac_add_interface(struct ieee80211_hw *hw, DECLARE_MAC_BUF(mac); IWL_DEBUG_MAC80211("enter: id %d, type %d\n", conf->if_id, conf->type); - if (conf->mac_addr) - IWL_DEBUG_MAC80211("enter: MAC %s\n", - print_mac(mac, conf->mac_addr)); if (priv->interface_id) { IWL_DEBUG_MAC80211("leave - interface_id != 0\n"); @@ -7345,6 +7342,11 @@ static int iwl_mac_add_interface(struct ieee80211_hw *hw, spin_unlock_irqrestore(&priv->lock, flags); mutex_lock(&priv->mutex); + + if (conf->mac_addr) { + IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr)); + memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); + } iwl_set_mode(priv, conf->type); IWL_DEBUG_MAC80211("leave\n"); -- cgit v1.2.3 From e47eb6ad41e8fc4c2696665512b70d1fd4cf3f22 Mon Sep 17 00:00:00 2001 From: Joonwoo Park Date: Thu, 29 Nov 2007 10:42:49 +0900 Subject: iwlwifi 3945 Fix race conditional panic. Signed-off-by: Joonwoo Park Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl3945-base.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index ae89a0f2c79..4bdf237f6ad 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -8277,6 +8277,7 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv) { iwl_hw_cancel_deferred_work(priv); + cancel_delayed_work_sync(&priv->init_alive_start); cancel_delayed_work(&priv->scan_check); cancel_delayed_work(&priv->alive_start); cancel_delayed_work(&priv->post_associate); -- cgit v1.2.3 From 3ae6a054553ee8b7f74bf7de8904022b26705778 Mon Sep 17 00:00:00 2001 From: Joonwoo Park Date: Thu, 29 Nov 2007 10:43:16 +0900 Subject: iwlwifi 4965 Fix race conditional panic. Signed-off-by: Joonwoo Park Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl4965-base.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 22d3bbc7be5..8f85564ec6f 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -8870,6 +8870,7 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv) { iwl_hw_cancel_deferred_work(priv); + cancel_delayed_work_sync(&priv->init_alive_start); cancel_delayed_work(&priv->scan_check); cancel_delayed_work(&priv->alive_start); cancel_delayed_work(&priv->post_associate); -- cgit v1.2.3 From 9f74ffdebf3f81cb69e6c90026c6cff89e57c262 Mon Sep 17 00:00:00 2001 From: Sreenivasa Honnur Date: Fri, 30 Nov 2007 01:46:08 -0500 Subject: S2io: Fixed the case when the card initialization fails on mtu change Fix the case when the card initialization fails on a mtu change and then close is called (due to ifdown), which frees non existent rx buffers. - Returning appropriate error codes in init_nic function. - In s2io_close function s2io_card_down is called only when device is up. - In s2io_change_mtu function return value of s2io_card_up function is checked and returned if it failed. Signed-off-by: Surjit Reang Signed-off-by: Sreenivasa Honnur Signed-off-by: Ramkrishna Vepa Signed-off-by: Jeff Garzik --- drivers/net/s2io.c | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index 63266670624..d5113dd712c 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -1081,7 +1081,7 @@ static int init_nic(struct s2io_nic *nic) /* to set the swapper controle on the card */ if(s2io_set_swapper(nic)) { DBG_PRINT(ERR_DBG,"ERROR: Setting Swapper failed\n"); - return -1; + return -EIO; } /* @@ -1503,7 +1503,7 @@ static int init_nic(struct s2io_nic *nic) DBG_PRINT(ERR_DBG, "%s: failed rts ds steering", dev->name); DBG_PRINT(ERR_DBG, "set on codepoint %d\n", i); - return FAILURE; + return -ENODEV; } } @@ -1570,7 +1570,7 @@ static int init_nic(struct s2io_nic *nic) if (time > 10) { DBG_PRINT(ERR_DBG, "%s: TTI init Failed\n", dev->name); - return -1; + return -ENODEV; } msleep(50); time++; @@ -1623,7 +1623,7 @@ static int init_nic(struct s2io_nic *nic) if (time > 10) { DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n", dev->name); - return -1; + return -ENODEV; } time++; msleep(50); @@ -3914,6 +3914,12 @@ static int s2io_close(struct net_device *dev) { struct s2io_nic *sp = dev->priv; + /* Return if the device is already closed * + * Can happen when s2io_card_up failed in change_mtu * + */ + if (!is_s2io_card_up(sp)) + return 0; + netif_stop_queue(dev); napi_disable(&sp->napi); /* Reset card, kill tasklet and free Tx and Rx buffers. */ @@ -6355,6 +6361,7 @@ static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) static int s2io_change_mtu(struct net_device *dev, int new_mtu) { struct s2io_nic *sp = dev->priv; + int ret = 0; if ((new_mtu < MIN_MTU) || (new_mtu > S2IO_JUMBO_SIZE)) { DBG_PRINT(ERR_DBG, "%s: MTU size is invalid.\n", @@ -6366,9 +6373,11 @@ static int s2io_change_mtu(struct net_device *dev, int new_mtu) if (netif_running(dev)) { s2io_card_down(sp); netif_stop_queue(dev); - if (s2io_card_up(sp)) { + ret = s2io_card_up(sp); + if (ret) { DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n", __FUNCTION__); + return ret; } if (netif_queue_stopped(dev)) netif_wake_queue(dev); @@ -6379,7 +6388,7 @@ static int s2io_change_mtu(struct net_device *dev, int new_mtu) writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len); } - return 0; + return ret; } /** @@ -6777,6 +6786,9 @@ static void do_s2io_card_down(struct s2io_nic * sp, int do_io) unsigned long flags; register u64 val64 = 0; + if (!is_s2io_card_up(sp)) + return; + del_timer_sync(&sp->alarm_timer); /* If s2io_set_link task is executing, wait till it completes. */ while (test_and_set_bit(__S2IO_STATE_LINK_TASK, &(sp->state))) { @@ -6850,11 +6862,13 @@ static int s2io_card_up(struct s2io_nic * sp) u16 interruptible; /* Initialize the H/W I/O registers */ - if (init_nic(sp) != 0) { + ret = init_nic(sp); + if (ret != 0) { DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n", dev->name); - s2io_reset(sp); - return -ENODEV; + if (ret != -EIO) + s2io_reset(sp); + return ret; } /* -- cgit v1.2.3 From 1c1478859017452a1179dbbdf7b9eb5b48438746 Mon Sep 17 00:00:00 2001 From: Peter Tiedemann Date: Thu, 29 Nov 2007 17:36:27 +0100 Subject: ctc: make use of alloc_netdev() Currently ctc-device initialization is broken (kernel bug in ctc_new_device). The new network namespace code reveals a deficiency of the ctc driver. It should make use of alloc_netdev() as described in Documentation/networking/netdevices.txt. Signed-off-by: Peter Tiedemann Signed-off-by: Ursula Braun Signed-off-by: Jeff Garzik --- drivers/s390/net/ctcmain.c | 45 ++++++++++++++++----------------------------- 1 file changed, 16 insertions(+), 29 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c index 6bf3ebbe985..b3b6f654365 100644 --- a/drivers/s390/net/ctcmain.c +++ b/drivers/s390/net/ctcmain.c @@ -2782,35 +2782,14 @@ ctc_probe_device(struct ccwgroup_device *cgdev) } /** - * Initialize everything of the net device except the name and the - * channel structs. + * Device setup function called by alloc_netdev(). + * + * @param dev Device to be setup. */ -static struct net_device * -ctc_init_netdevice(struct net_device * dev, int alloc_device, - struct ctc_priv *privptr) +void ctc_init_netdevice(struct net_device * dev) { - if (!privptr) - return NULL; - DBF_TEXT(setup, 3, __FUNCTION__); - if (alloc_device) { - dev = kzalloc(sizeof(struct net_device), GFP_KERNEL); - if (!dev) - return NULL; - } - - dev->priv = privptr; - privptr->fsm = init_fsm("ctcdev", dev_state_names, - dev_event_names, CTC_NR_DEV_STATES, CTC_NR_DEV_EVENTS, - dev_fsm, DEV_FSM_LEN, GFP_KERNEL); - if (privptr->fsm == NULL) { - if (alloc_device) - kfree(dev); - return NULL; - } - fsm_newstate(privptr->fsm, DEV_STATE_STOPPED); - fsm_settimer(privptr->fsm, &privptr->restart_timer); if (dev->mtu == 0) dev->mtu = CTC_BUFSIZE_DEFAULT - LL_HEADER_LENGTH - 2; dev->hard_start_xmit = ctc_tx; @@ -2823,7 +2802,7 @@ ctc_init_netdevice(struct net_device * dev, int alloc_device, dev->type = ARPHRD_SLIP; dev->tx_queue_len = 100; dev->flags = IFF_POINTOPOINT | IFF_NOARP; - return dev; + SET_MODULE_OWNER(dev); } @@ -2879,14 +2858,22 @@ ctc_new_device(struct ccwgroup_device *cgdev) "ccw_device_set_online (cdev[1]) failed with ret = %d\n", ret); } - dev = ctc_init_netdevice(NULL, 1, privptr); - + dev = alloc_netdev(0, "ctc%d", ctc_init_netdevice); if (!dev) { ctc_pr_warn("ctc_init_netdevice failed\n"); goto out; } + dev->priv = privptr; - strlcpy(dev->name, "ctc%d", IFNAMSIZ); + privptr->fsm = init_fsm("ctcdev", dev_state_names, + dev_event_names, CTC_NR_DEV_STATES, CTC_NR_DEV_EVENTS, + dev_fsm, DEV_FSM_LEN, GFP_KERNEL); + if (privptr->fsm == NULL) { + free_netdev(dev); + goto out; + } + fsm_newstate(privptr->fsm, DEV_STATE_STOPPED); + fsm_settimer(privptr->fsm, &privptr->restart_timer); for (direction = READ; direction <= WRITE; direction++) { privptr->channel[direction] = -- cgit v1.2.3 From 29816d9aa55c99d463bd5507a46535b5fe79c33a Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 26 Nov 2007 11:54:48 -0800 Subject: skge: FIFO Ram calculation error The calculation of usable FIFO RAM is wrong in the skge driver. First, is doesn't take into account the reserved area on the original SysKonnect Genesis boards. Second it has an off-by-one error because hw->ports is either 1 or 2. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 6d62250fba0..14f06aea9ca 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -2619,8 +2619,8 @@ static int skge_up(struct net_device *dev) yukon_mac_init(hw, port); spin_unlock_bh(&hw->phy_lock); - /* Configure RAMbuffers */ - chunk = hw->ram_size / ((hw->ports + 1)*2); + /* Configure RAMbuffers - equally between ports and tx/rx */ + chunk = (hw->ram_size - hw->ram_offset) / (hw->ports * 2); ram_addr = hw->ram_offset + 2 * chunk * port; skge_ramset(hw, rxqaddr[port], ram_addr, chunk); -- cgit v1.2.3 From d08b9bdf0264a8134677373f97641712062c603f Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 26 Nov 2007 11:54:49 -0800 Subject: skge: receive flush logic Receive FIFO overrun is not catastrophic condition, so don't flush when it happens. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 14f06aea9ca..82edf44b9e2 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -1801,11 +1801,6 @@ static void genesis_mac_intr(struct skge_hw *hw, int port) xm_write32(hw, port, XM_MODE, XM_MD_FTF); ++dev->stats.tx_fifo_errors; } - - if (status & XM_IS_RXF_OV) { - xm_write32(hw, port, XM_MODE, XM_MD_FRF); - ++dev->stats.rx_fifo_errors; - } } static void genesis_link_up(struct skge_port *skge) @@ -1862,9 +1857,9 @@ static void genesis_link_up(struct skge_port *skge) xm_write32(hw, port, XM_MODE, mode); - /* Turn on detection of Tx underrun, Rx overrun */ + /* Turn on detection of Tx underrun */ msk = xm_read16(hw, port, XM_IMSK); - msk &= ~(XM_IS_RXF_OV | XM_IS_TXF_UR); + msk &= ~XM_IS_TXF_UR; xm_write16(hw, port, XM_IMSK, msk); xm_read16(hw, port, XM_ISRC); -- cgit v1.2.3 From 799b21d2bddd43145130e509efb92339eabafef9 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 26 Nov 2007 11:54:50 -0800 Subject: skge: retry on MAC shutdown Make sure and retry when shutting down the MAC. This code is copied from sk98lin driver. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 82edf44b9e2..b680cb08e9c 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -1713,7 +1713,7 @@ static void genesis_stop(struct skge_port *skge) { struct skge_hw *hw = skge->hw; int port = skge->port; - u32 reg; + unsigned retries = 1000; genesis_reset(hw, port); @@ -1721,20 +1721,17 @@ static void genesis_stop(struct skge_port *skge) skge_write16(hw, B3_PA_CTRL, port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2); - /* - * If the transfer sticks at the MAC the STOP command will not - * terminate if we don't flush the XMAC's transmit FIFO ! - */ - xm_write32(hw, port, XM_MODE, - xm_read32(hw, port, XM_MODE)|XM_MD_FTF); - - /* Reset the MAC */ - skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST); + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); + do { + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST); + if (!(skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST)) + break; + } while (--retries > 0); /* For external PHYs there must be special handling */ if (hw->phy_type != SK_PHY_XMAC) { - reg = skge_read32(hw, B2_GP_IO); + u32 reg = skge_read32(hw, B2_GP_IO); if (port == 0) { reg |= GP_DIR_0; reg &= ~GP_IO_0; -- cgit v1.2.3 From 21d7f67700ad7a4523d35d43ce95755e40eae5b7 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 26 Nov 2007 11:54:51 -0800 Subject: skge: fiber link up/down fix The driver would not work over fibre if other end when down then came back up (would require reloading driver). The correct way to manage the link the same way for both TP and fibre. Resloves problem described in: http://lkml.org/lkml/2007/11/6/395 Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/skge.c b/drivers/net/skge.c index b680cb08e9c..73a424694ac 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -1095,16 +1095,9 @@ static void xm_link_down(struct skge_hw *hw, int port) { struct net_device *dev = hw->dev[port]; struct skge_port *skge = netdev_priv(dev); - u16 cmd = xm_read16(hw, port, XM_MMU_CMD); xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE); - cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX); - xm_write16(hw, port, XM_MMU_CMD, cmd); - - /* dummy read to ensure writing */ - xm_read16(hw, port, XM_MMU_CMD); - if (netif_carrier_ok(dev)) skge_link_down(skge); } @@ -1194,6 +1187,7 @@ static void genesis_init(struct skge_hw *hw) static void genesis_reset(struct skge_hw *hw, int port) { const u8 zero[8] = { 0 }; + u32 reg; skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); @@ -1209,6 +1203,11 @@ static void genesis_reset(struct skge_hw *hw, int port) xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); xm_outhash(hw, port, XM_HSM, zero); + + /* Flush TX and RX fifo */ + reg = xm_read32(hw, port, XM_MODE); + xm_write32(hw, port, XM_MODE, reg | XM_MD_FTF); + xm_write32(hw, port, XM_MODE, reg | XM_MD_FRF); } @@ -1714,6 +1713,12 @@ static void genesis_stop(struct skge_port *skge) struct skge_hw *hw = skge->hw; int port = skge->port; unsigned retries = 1000; + u16 cmd; + + /* Disable Tx and Rx */ + cmd = xm_read16(hw, port, XM_MMU_CMD); + cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX); + xm_write16(hw, port, XM_MMU_CMD, cmd); genesis_reset(hw, port); -- cgit v1.2.3 From 485982a99a8a0b547aebedc3d0017dbffc3a44c0 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 26 Nov 2007 11:54:52 -0800 Subject: skge: increase TX threshold for Jumbo Need to increase TX threshold when doing Jumbo frames on dual port board to avoid underruns. (Code from sk98lin). Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 73a424694ac..f7e0fbbd4ad 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -1633,15 +1633,14 @@ static void genesis_mac_init(struct skge_hw *hw, int port) } xm_write16(hw, port, XM_RX_CMD, r); - /* We want short frames padded to 60 bytes. */ xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD); - /* - * Bump up the transmit threshold. This helps hold off transmit - * underruns when we're blasting traffic from both ports at once. - */ - xm_write16(hw, port, XM_TX_THR, 512); + /* Increase threshold for jumbo frames on dual port */ + if (hw->ports > 1 && jumbo) + xm_write16(hw, port, XM_TX_THR, 1020); + else + xm_write16(hw, port, XM_TX_THR, 512); /* * Enable the reception of all error frames. This is is -- cgit v1.2.3 From bf9f56d585c1e4cab6c44270fa5865237751dbda Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 26 Nov 2007 11:54:53 -0800 Subject: skge version 1.13 Version for 2.6.24 Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/skge.c b/drivers/net/skge.c index f7e0fbbd4ad..59359409da7 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -44,7 +44,7 @@ #include "skge.h" #define DRV_NAME "skge" -#define DRV_VERSION "1.12" +#define DRV_VERSION "1.13" #define PFX DRV_NAME " " #define DEFAULT_TX_RING_SIZE 128 -- cgit v1.2.3 From 44c7fccec4098772b9451a252d162faea4f0cc34 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 28 Nov 2007 14:23:01 -0800 Subject: skge: serial mode register values For compatiablity with sk98lin, make sure and set same values in serial mode register. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 59359409da7..53d2059a660 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -2190,9 +2190,12 @@ static void yukon_mac_init(struct skge_hw *hw, int port) TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | TX_IPG_JAM_DATA(TX_IPG_JAM_DEF)); - /* serial mode register */ - reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); - if (hw->dev[port]->mtu > 1500) + /* configure the Serial Mode Register */ + reg = DATA_BLIND_VAL(DATA_BLIND_DEF) + | GM_SMOD_VLAN_ENA + | IPG_DATA_VAL(IPG_DATA_DEF); + + if (hw->dev[port]->mtu > ETH_DATA_LEN) reg |= GM_SMOD_JUMBO_ENA; gma_write16(hw, port, GM_SERIAL_MODE, reg); -- cgit v1.2.3 From 1a8098be987d3fa00c9fe9d2b68154675df49112 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 28 Nov 2007 14:25:05 -0800 Subject: skge: MTU changing fix The code to change MTU doesn't correctly handle all the chip variations and requirements for restarting. On Genesis chips changing MTU would just cause receiver to hang. Use a simpler approach of just taking link down/up if needed. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/skge.c | 35 ++--------------------------------- 1 file changed, 2 insertions(+), 33 deletions(-) (limited to 'drivers') diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 53d2059a660..186eb8ebfda 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -2896,11 +2896,7 @@ static void skge_tx_timeout(struct net_device *dev) static int skge_change_mtu(struct net_device *dev, int new_mtu) { - struct skge_port *skge = netdev_priv(dev); - struct skge_hw *hw = skge->hw; - int port = skge->port; int err; - u16 ctl, reg; if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) return -EINVAL; @@ -2910,40 +2906,13 @@ static int skge_change_mtu(struct net_device *dev, int new_mtu) return 0; } - skge_write32(hw, B0_IMSK, 0); - dev->trans_start = jiffies; /* prevent tx timeout */ - netif_stop_queue(dev); - napi_disable(&skge->napi); - - ctl = gma_read16(hw, port, GM_GP_CTRL); - gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA); - - skge_rx_clean(skge); - skge_rx_stop(hw, port); + skge_down(dev); dev->mtu = new_mtu; - reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); - if (new_mtu > 1500) - reg |= GM_SMOD_JUMBO_ENA; - gma_write16(hw, port, GM_SERIAL_MODE, reg); - - skge_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD); - - err = skge_rx_fill(dev); - wmb(); - if (!err) - skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F); - skge_write32(hw, B0_IMSK, hw->intr_mask); - + err = skge_up(dev); if (err) dev_close(dev); - else { - gma_write16(hw, port, GM_GP_CTRL, ctl); - - napi_enable(&skge->napi); - netif_wake_queue(dev); - } return err; } -- cgit v1.2.3 From 9daf5a7695f70b60c498aac079f908c81ffe4d15 Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Mon, 26 Nov 2007 16:17:52 -0600 Subject: phylib: marvell: add support for TX-only and RX-only Internal Delay Previously, Internal Delay specification implied the delay be applied to both TX and RX. This patch allows for separate TX/RX-only internal delay specification. Signed-off-by: Kim Phillips Tested-by: Anton Vorontsov Acked-by: Li Yang Signed-off-by: Jeff Garzik --- drivers/net/phy/marvell.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 035fd41fb61..f0574073a2a 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -143,21 +143,29 @@ static int m88e1111_config_init(struct phy_device *phydev) int err; if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) || - (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)) { + (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || + (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) || + (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) { int temp; - if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) { - temp = phy_read(phydev, MII_M1111_PHY_EXT_CR); - if (temp < 0) - return temp; + temp = phy_read(phydev, MII_M1111_PHY_EXT_CR); + if (temp < 0) + return temp; + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) { temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY); - - err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp); - if (err < 0) - return err; + } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) { + temp &= ~MII_M1111_TX_DELAY; + temp |= MII_M1111_RX_DELAY; + } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) { + temp &= ~MII_M1111_RX_DELAY; + temp |= MII_M1111_TX_DELAY; } + err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp); + if (err < 0) + return err; + temp = phy_read(phydev, MII_M1111_PHY_EXT_SR); if (temp < 0) return temp; -- cgit v1.2.3 From bd0ceaab86d3f0e3916b3b7868cfe20de490eebc Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Mon, 26 Nov 2007 16:17:58 -0600 Subject: ucc_geth: handle passing of RX-only and TX-only internal delay PHY connection type parameters Extend the RGMII-Internal Delay specification case to include TX-only and RX-only variants. Signed-off-by: Kim Phillips Tested-by: Anton Vorontsov Acked-by: Li Yang Signed-off-by: Jeff Garzik --- drivers/net/ucc_geth.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index a3ff270593f..7f689907ac2 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -1460,6 +1460,8 @@ static int adjust_enet_interface(struct ucc_geth_private *ugeth) if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) || (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) || (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) || + (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) || + (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) || (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) { upsmr |= UPSMR_RPM; switch (ugeth->max_speed) { @@ -1557,6 +1559,8 @@ static void adjust_link(struct net_device *dev) if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) || (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) || (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) || + (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) || + (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) || (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) { if (phydev->speed == SPEED_10) upsmr |= UPSMR_R10M; @@ -3795,6 +3799,10 @@ static phy_interface_t to_phy_interface(const char *phy_connection_type) return PHY_INTERFACE_MODE_RGMII; if (strcasecmp(phy_connection_type, "rgmii-id") == 0) return PHY_INTERFACE_MODE_RGMII_ID; + if (strcasecmp(phy_connection_type, "rgmii-txid") == 0) + return PHY_INTERFACE_MODE_RGMII_TXID; + if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0) + return PHY_INTERFACE_MODE_RGMII_RXID; if (strcasecmp(phy_connection_type, "rtbi") == 0) return PHY_INTERFACE_MODE_RTBI; @@ -3889,6 +3897,8 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma case PHY_INTERFACE_MODE_GMII: case PHY_INTERFACE_MODE_RGMII: case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: case PHY_INTERFACE_MODE_TBI: case PHY_INTERFACE_MODE_RTBI: max_speed = SPEED_1000; -- cgit v1.2.3 From 7832ee034b6ef78aab020c9ec1348544cd65ccbd Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Tue, 27 Nov 2007 13:30:09 -0800 Subject: cxgb - fix T2 GSO The patch ensures that a GSO skb has enough headroom to push an encapsulating cpl_tx_pkt_lso header. Signed-off-by: Divy Le Ray Signed-off-by: Jeff Garzik --- drivers/net/chelsio/cxgb2.c | 3 ++- drivers/net/chelsio/sge.c | 34 +++++++++++++++------------------- drivers/net/chelsio/sge.h | 1 + 3 files changed, 18 insertions(+), 20 deletions(-) mode change 100644 => 100755 drivers/net/chelsio/cxgb2.c mode change 100644 => 100755 drivers/net/chelsio/sge.c mode change 100644 => 100755 drivers/net/chelsio/sge.h (limited to 'drivers') diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c old mode 100644 new mode 100755 index 2dbf8dc116c..2461f91b099 --- a/drivers/net/chelsio/cxgb2.c +++ b/drivers/net/chelsio/cxgb2.c @@ -401,7 +401,8 @@ static char stats_strings[][ETH_GSTRING_LEN] = { "TxTso", "RxVlan", "TxVlan", - + "TxNeedHeadroom", + /* Interrupt stats */ "rx drops", "pure_rsps", diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c old mode 100644 new mode 100755 index 443666292a5..e8b1036672a --- a/drivers/net/chelsio/sge.c +++ b/drivers/net/chelsio/sge.c @@ -991,6 +991,7 @@ void t1_sge_get_port_stats(const struct sge *sge, int port, ss->tx_packets += st->tx_packets; ss->tx_cso += st->tx_cso; ss->tx_tso += st->tx_tso; + ss->tx_need_hdrroom += st->tx_need_hdrroom; ss->vlan_xtract += st->vlan_xtract; ss->vlan_insert += st->vlan_insert; } @@ -1848,7 +1849,8 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct adapter *adapter = dev->priv; struct sge *sge = adapter->sge; - struct sge_port_stats *st = per_cpu_ptr(sge->port_stats[dev->if_port], smp_processor_id()); + struct sge_port_stats *st = per_cpu_ptr(sge->port_stats[dev->if_port], + smp_processor_id()); struct cpl_tx_pkt *cpl; struct sk_buff *orig_skb = skb; int ret; @@ -1856,6 +1858,18 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev) if (skb->protocol == htons(ETH_P_CPL5)) goto send; + /* + * We are using a non-standard hard_header_len. + * Allocate more header room in the rare cases it is not big enough. + */ + if (unlikely(skb_headroom(skb) < dev->hard_header_len - ETH_HLEN)) { + skb = skb_realloc_headroom(skb, sizeof(struct cpl_tx_pkt_lso)); + ++st->tx_need_hdrroom; + dev_kfree_skb_any(orig_skb); + if (!skb) + return NETDEV_TX_OK; + } + if (skb_shinfo(skb)->gso_size) { int eth_type; struct cpl_tx_pkt_lso *hdr; @@ -1889,24 +1903,6 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } - /* - * We are using a non-standard hard_header_len and some kernel - * components, such as pktgen, do not handle it right. - * Complain when this happens but try to fix things up. - */ - if (unlikely(skb_headroom(skb) < dev->hard_header_len - ETH_HLEN)) { - pr_debug("%s: headroom %d header_len %d\n", dev->name, - skb_headroom(skb), dev->hard_header_len); - - if (net_ratelimit()) - printk(KERN_ERR "%s: inadequate headroom in " - "Tx packet\n", dev->name); - skb = skb_realloc_headroom(skb, sizeof(*cpl)); - dev_kfree_skb_any(orig_skb); - if (!skb) - return NETDEV_TX_OK; - } - if (!(adapter->flags & UDP_CSUM_CAPABLE) && skb->ip_summed == CHECKSUM_PARTIAL && ip_hdr(skb)->protocol == IPPROTO_UDP) { diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h old mode 100644 new mode 100755 index 713d9c55f24..285bbb272ed --- a/drivers/net/chelsio/sge.h +++ b/drivers/net/chelsio/sge.h @@ -64,6 +64,7 @@ struct sge_port_stats { u64 tx_tso; /* # of TSO requests */ u64 vlan_xtract; /* # of VLAN tag extractions */ u64 vlan_insert; /* # of VLAN tag insertions */ + u64 tx_need_hdrroom; /* # of TX skbs in need of more header room */ }; struct sk_buff; -- cgit v1.2.3 From 445cf803ca757a5c43f4e11fdfba70355d510841 Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Tue, 27 Nov 2007 13:30:15 -0800 Subject: cxgb - fix NAPI netif_rx_complete() should be called only when work_done < budget. Signed-off-by: Divy Le ray Signed-off-by: Jeff Garzik --- drivers/net/chelsio/sge.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) mode change 100755 => 100644 drivers/net/chelsio/sge.c (limited to 'drivers') diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c old mode 100755 new mode 100644 index e8b1036672a..4b6258fc726 --- a/drivers/net/chelsio/sge.c +++ b/drivers/net/chelsio/sge.c @@ -1625,11 +1625,9 @@ int t1_poll(struct napi_struct *napi, int budget) { struct adapter *adapter = container_of(napi, struct adapter, napi); struct net_device *dev = adapter->port[0].dev; - int work_done; - - work_done = process_responses(adapter, budget); + int work_done = process_responses(adapter, budget); - if (likely(!responses_pending(adapter))) { + if (likely(work_done < budget)) { netif_rx_complete(dev, napi); writel(adapter->sge->respQ.cidx, adapter->regs + A_SG_SLEEPING); -- cgit v1.2.3 From e0348b9ae5374f9a24424ae680bcd80724415f60 Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Tue, 27 Nov 2007 13:30:20 -0800 Subject: cxgb - fix stats Fix MAC stats accounting. Fix get_stats. Signed-off-by: Divy Le Ray Signed-off-by: Jeff Garzik --- drivers/net/chelsio/cxgb2.c | 67 +++++++++++++++++++------- drivers/net/chelsio/pm3393.c | 112 +++++++++++++++++-------------------------- drivers/net/chelsio/sge.c | 4 -- drivers/net/chelsio/sge.h | 2 - 4 files changed, 96 insertions(+), 89 deletions(-) mode change 100644 => 100755 drivers/net/chelsio/pm3393.c mode change 100644 => 100755 drivers/net/chelsio/sge.c (limited to 'drivers') diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c index 2461f91b099..c5975047c89 100755 --- a/drivers/net/chelsio/cxgb2.c +++ b/drivers/net/chelsio/cxgb2.c @@ -374,7 +374,9 @@ static char stats_strings[][ETH_GSTRING_LEN] = { "TxInternalMACXmitError", "TxFramesWithExcessiveDeferral", "TxFCSErrors", - + "TxJumboFramesOk", + "TxJumboOctetsOk", + "RxOctetsOK", "RxOctetsBad", "RxUnicastFramesOK", @@ -392,11 +394,11 @@ static char stats_strings[][ETH_GSTRING_LEN] = { "RxInRangeLengthErrors", "RxOutOfRangeLengthField", "RxFrameTooLongErrors", + "RxJumboFramesOk", + "RxJumboOctetsOk", /* Port stats */ - "RxPackets", "RxCsumGood", - "TxPackets", "TxCsumOffload", "TxTso", "RxVlan", @@ -464,23 +466,56 @@ static void get_stats(struct net_device *dev, struct ethtool_stats *stats, const struct cmac_statistics *s; const struct sge_intr_counts *t; struct sge_port_stats ss; - unsigned int len; s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL); - - len = sizeof(u64)*(&s->TxFCSErrors + 1 - &s->TxOctetsOK); - memcpy(data, &s->TxOctetsOK, len); - data += len; - - len = sizeof(u64)*(&s->RxFrameTooLongErrors + 1 - &s->RxOctetsOK); - memcpy(data, &s->RxOctetsOK, len); - data += len; - + t = t1_sge_get_intr_counts(adapter->sge); t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss); - memcpy(data, &ss, sizeof(ss)); - data += sizeof(ss); - t = t1_sge_get_intr_counts(adapter->sge); + *data++ = s->TxOctetsOK; + *data++ = s->TxOctetsBad; + *data++ = s->TxUnicastFramesOK; + *data++ = s->TxMulticastFramesOK; + *data++ = s->TxBroadcastFramesOK; + *data++ = s->TxPauseFrames; + *data++ = s->TxFramesWithDeferredXmissions; + *data++ = s->TxLateCollisions; + *data++ = s->TxTotalCollisions; + *data++ = s->TxFramesAbortedDueToXSCollisions; + *data++ = s->TxUnderrun; + *data++ = s->TxLengthErrors; + *data++ = s->TxInternalMACXmitError; + *data++ = s->TxFramesWithExcessiveDeferral; + *data++ = s->TxFCSErrors; + *data++ = s->TxJumboFramesOK; + *data++ = s->TxJumboOctetsOK; + + *data++ = s->RxOctetsOK; + *data++ = s->RxOctetsBad; + *data++ = s->RxUnicastFramesOK; + *data++ = s->RxMulticastFramesOK; + *data++ = s->RxBroadcastFramesOK; + *data++ = s->RxPauseFrames; + *data++ = s->RxFCSErrors; + *data++ = s->RxAlignErrors; + *data++ = s->RxSymbolErrors; + *data++ = s->RxDataErrors; + *data++ = s->RxSequenceErrors; + *data++ = s->RxRuntErrors; + *data++ = s->RxJabberErrors; + *data++ = s->RxInternalMACRcvError; + *data++ = s->RxInRangeLengthErrors; + *data++ = s->RxOutOfRangeLengthField; + *data++ = s->RxFrameTooLongErrors; + *data++ = s->RxJumboFramesOK; + *data++ = s->RxJumboOctetsOK; + + *data++ = ss.rx_cso_good; + *data++ = ss.tx_cso; + *data++ = ss.tx_tso; + *data++ = ss.vlan_xtract; + *data++ = ss.vlan_insert; + *data++ = ss.tx_need_hdrroom; + *data++ = t->rx_drops; *data++ = t->pure_rsps; *data++ = t->unhandled_irqs; diff --git a/drivers/net/chelsio/pm3393.c b/drivers/net/chelsio/pm3393.c old mode 100644 new mode 100755 index 678778a8d13..2117c4fbb10 --- a/drivers/net/chelsio/pm3393.c +++ b/drivers/net/chelsio/pm3393.c @@ -45,7 +45,7 @@ #include -#define OFFSET(REG_ADDR) (REG_ADDR << 2) +#define OFFSET(REG_ADDR) ((REG_ADDR) << 2) /* Max frame size PM3393 can handle. Includes Ethernet header and CRC. */ #define MAX_FRAME_SIZE 9600 @@ -428,69 +428,26 @@ static int pm3393_set_speed_duplex_fc(struct cmac *cmac, int speed, int duplex, return 0; } -static void pm3393_rmon_update(struct adapter *adapter, u32 offs, u64 *val, - int over) -{ - u32 val0, val1, val2; - - t1_tpi_read(adapter, offs, &val0); - t1_tpi_read(adapter, offs + 4, &val1); - t1_tpi_read(adapter, offs + 8, &val2); - - *val &= ~0ull << 40; - *val |= val0 & 0xffff; - *val |= (val1 & 0xffff) << 16; - *val |= (u64)(val2 & 0xff) << 32; - - if (over) - *val += 1ull << 40; +#define RMON_UPDATE(mac, name, stat_name) \ +{ \ + t1_tpi_read((mac)->adapter, OFFSET(name), &val0); \ + t1_tpi_read((mac)->adapter, OFFSET((name)+1), &val1); \ + t1_tpi_read((mac)->adapter, OFFSET((name)+2), &val2); \ + (mac)->stats.stat_name = (u64)(val0 & 0xffff) | \ + ((u64)(val1 & 0xffff) << 16) | \ + ((u64)(val2 & 0xff) << 32) | \ + ((mac)->stats.stat_name & \ + 0xffffff0000000000ULL); \ + if (ro & \ + (1ULL << ((name - SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW) >> 2))) \ + (mac)->stats.stat_name += 1ULL << 40; \ } static const struct cmac_statistics *pm3393_update_statistics(struct cmac *mac, int flag) { - static struct { - unsigned int reg; - unsigned int offset; - } hw_stats [] = { - -#define HW_STAT(name, stat_name) \ - { name, (&((struct cmac_statistics *)NULL)->stat_name) - (u64 *)NULL } - - /* Rx stats */ - HW_STAT(RxOctetsReceivedOK, RxOctetsOK), - HW_STAT(RxUnicastFramesReceivedOK, RxUnicastFramesOK), - HW_STAT(RxMulticastFramesReceivedOK, RxMulticastFramesOK), - HW_STAT(RxBroadcastFramesReceivedOK, RxBroadcastFramesOK), - HW_STAT(RxPAUSEMACCtrlFramesReceived, RxPauseFrames), - HW_STAT(RxFrameCheckSequenceErrors, RxFCSErrors), - HW_STAT(RxFramesLostDueToInternalMACErrors, - RxInternalMACRcvError), - HW_STAT(RxSymbolErrors, RxSymbolErrors), - HW_STAT(RxInRangeLengthErrors, RxInRangeLengthErrors), - HW_STAT(RxFramesTooLongErrors , RxFrameTooLongErrors), - HW_STAT(RxJabbers, RxJabberErrors), - HW_STAT(RxFragments, RxRuntErrors), - HW_STAT(RxUndersizedFrames, RxRuntErrors), - HW_STAT(RxJumboFramesReceivedOK, RxJumboFramesOK), - HW_STAT(RxJumboOctetsReceivedOK, RxJumboOctetsOK), - - /* Tx stats */ - HW_STAT(TxOctetsTransmittedOK, TxOctetsOK), - HW_STAT(TxFramesLostDueToInternalMACTransmissionError, - TxInternalMACXmitError), - HW_STAT(TxTransmitSystemError, TxFCSErrors), - HW_STAT(TxUnicastFramesTransmittedOK, TxUnicastFramesOK), - HW_STAT(TxMulticastFramesTransmittedOK, TxMulticastFramesOK), - HW_STAT(TxBroadcastFramesTransmittedOK, TxBroadcastFramesOK), - HW_STAT(TxPAUSEMACCtrlFramesTransmitted, TxPauseFrames), - HW_STAT(TxJumboFramesReceivedOK, TxJumboFramesOK), - HW_STAT(TxJumboOctetsReceivedOK, TxJumboOctetsOK) - }, *p = hw_stats; - u64 ro; - u32 val0, val1, val2, val3; - u64 *stats = (u64 *) &mac->stats; - unsigned int i; + u64 ro; + u32 val0, val1, val2, val3; /* Snap the counters */ pmwrite(mac, SUNI1x10GEXP_REG_MSTAT_CONTROL, @@ -504,14 +461,35 @@ static const struct cmac_statistics *pm3393_update_statistics(struct cmac *mac, ro = ((u64)val0 & 0xffff) | (((u64)val1 & 0xffff) << 16) | (((u64)val2 & 0xffff) << 32) | (((u64)val3 & 0xffff) << 48); - for (i = 0; i < ARRAY_SIZE(hw_stats); i++) { - unsigned reg = p->reg - SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW; - - pm3393_rmon_update((mac)->adapter, OFFSET(p->reg), - stats + p->offset, ro & (reg >> 2)); - } - - + /* Rx stats */ + RMON_UPDATE(mac, RxOctetsReceivedOK, RxOctetsOK); + RMON_UPDATE(mac, RxUnicastFramesReceivedOK, RxUnicastFramesOK); + RMON_UPDATE(mac, RxMulticastFramesReceivedOK, RxMulticastFramesOK); + RMON_UPDATE(mac, RxBroadcastFramesReceivedOK, RxBroadcastFramesOK); + RMON_UPDATE(mac, RxPAUSEMACCtrlFramesReceived, RxPauseFrames); + RMON_UPDATE(mac, RxFrameCheckSequenceErrors, RxFCSErrors); + RMON_UPDATE(mac, RxFramesLostDueToInternalMACErrors, + RxInternalMACRcvError); + RMON_UPDATE(mac, RxSymbolErrors, RxSymbolErrors); + RMON_UPDATE(mac, RxInRangeLengthErrors, RxInRangeLengthErrors); + RMON_UPDATE(mac, RxFramesTooLongErrors , RxFrameTooLongErrors); + RMON_UPDATE(mac, RxJabbers, RxJabberErrors); + RMON_UPDATE(mac, RxFragments, RxRuntErrors); + RMON_UPDATE(mac, RxUndersizedFrames, RxRuntErrors); + RMON_UPDATE(mac, RxJumboFramesReceivedOK, RxJumboFramesOK); + RMON_UPDATE(mac, RxJumboOctetsReceivedOK, RxJumboOctetsOK); + + /* Tx stats */ + RMON_UPDATE(mac, TxOctetsTransmittedOK, TxOctetsOK); + RMON_UPDATE(mac, TxFramesLostDueToInternalMACTransmissionError, + TxInternalMACXmitError); + RMON_UPDATE(mac, TxTransmitSystemError, TxFCSErrors); + RMON_UPDATE(mac, TxUnicastFramesTransmittedOK, TxUnicastFramesOK); + RMON_UPDATE(mac, TxMulticastFramesTransmittedOK, TxMulticastFramesOK); + RMON_UPDATE(mac, TxBroadcastFramesTransmittedOK, TxBroadcastFramesOK); + RMON_UPDATE(mac, TxPAUSEMACCtrlFramesTransmitted, TxPauseFrames); + RMON_UPDATE(mac, TxJumboFramesReceivedOK, TxJumboFramesOK); + RMON_UPDATE(mac, TxJumboOctetsReceivedOK, TxJumboOctetsOK); return &mac->stats; } diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c old mode 100644 new mode 100755 index 4b6258fc726..b301c0428ae --- a/drivers/net/chelsio/sge.c +++ b/drivers/net/chelsio/sge.c @@ -986,9 +986,7 @@ void t1_sge_get_port_stats(const struct sge *sge, int port, for_each_possible_cpu(cpu) { struct sge_port_stats *st = per_cpu_ptr(sge->port_stats[port], cpu); - ss->rx_packets += st->rx_packets; ss->rx_cso_good += st->rx_cso_good; - ss->tx_packets += st->tx_packets; ss->tx_cso += st->tx_cso; ss->tx_tso += st->tx_tso; ss->tx_need_hdrroom += st->tx_need_hdrroom; @@ -1381,7 +1379,6 @@ static void sge_rx(struct sge *sge, struct freelQ *fl, unsigned int len) __skb_pull(skb, sizeof(*p)); st = per_cpu_ptr(sge->port_stats[p->iff], smp_processor_id()); - st->rx_packets++; skb->protocol = eth_type_trans(skb, adapter->port[p->iff].dev); skb->dev->last_rx = jiffies; @@ -1946,7 +1943,6 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev) cpl->vlan_valid = 0; send: - st->tx_packets++; dev->trans_start = jiffies; ret = t1_sge_tx(skb, adapter, 0, dev); diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h index 285bbb272ed..cced9dff91c 100755 --- a/drivers/net/chelsio/sge.h +++ b/drivers/net/chelsio/sge.h @@ -57,9 +57,7 @@ struct sge_intr_counts { }; struct sge_port_stats { - u64 rx_packets; /* # of Ethernet packets received */ u64 rx_cso_good; /* # of successful RX csum offloads */ - u64 tx_packets; /* # of TX packets */ u64 tx_cso; /* # of TX checksum offloads */ u64 tx_tso; /* # of TSO requests */ u64 vlan_xtract; /* # of VLAN tag extractions */ -- cgit v1.2.3 From b32f40c4853cdbe3d722a959fb0dd1ea048b50d0 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 27 Nov 2007 10:57:27 -0800 Subject: sky2: revert to access PCI config via device space Using the hardware window into PCI config space is more reliable and smaller/faster than using the pci_config routines. It avoids issues with MMCONFIG etc. Reverts: 167f53d05fccb47b6eeadac7f6705b3f2f042d03 Please apply for 2.6.24 Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 73 ++++++++++++++++++++++++++---------------------------- drivers/net/sky2.h | 21 ++++++++++++++++ 2 files changed, 56 insertions(+), 38 deletions(-) (limited to 'drivers') diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 8c4c7430d90..65071e40959 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -240,22 +240,21 @@ static void sky2_power_on(struct sky2_hw *hw) sky2_write8(hw, B2_Y2_CLK_GATE, 0); if (hw->flags & SKY2_HW_ADV_POWER_CTL) { - struct pci_dev *pdev = hw->pdev; u32 reg; - pci_write_config_dword(pdev, PCI_DEV_REG3, 0); + sky2_pci_write32(hw, PCI_DEV_REG3, 0); - pci_read_config_dword(pdev, PCI_DEV_REG4, ®); + reg = sky2_pci_read32(hw, PCI_DEV_REG4); /* set all bits to 0 except bits 15..12 and 8 */ reg &= P_ASPM_CONTROL_MSK; - pci_write_config_dword(pdev, PCI_DEV_REG4, reg); + sky2_pci_write32(hw, PCI_DEV_REG4, reg); - pci_read_config_dword(pdev, PCI_DEV_REG5, ®); + reg = sky2_pci_read32(hw, PCI_DEV_REG5); /* set all bits to 0 except bits 28 & 27 */ reg &= P_CTL_TIM_VMAIN_AV_MSK; - pci_write_config_dword(pdev, PCI_DEV_REG5, reg); + sky2_pci_write32(hw, PCI_DEV_REG5, reg); - pci_write_config_dword(pdev, PCI_CFG_REG_1, 0); + sky2_pci_write32(hw, PCI_CFG_REG_1, 0); /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */ reg = sky2_read32(hw, B2_GP_IO); @@ -619,12 +618,11 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port) static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff) { - struct pci_dev *pdev = hw->pdev; u32 reg1; static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD }; static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA }; - pci_read_config_dword(pdev, PCI_DEV_REG1, ®1); + reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); /* Turn on/off phy power saving */ if (onoff) reg1 &= ~phy_power[port]; @@ -634,8 +632,8 @@ static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff) if (onoff && hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) reg1 |= coma_mode[port]; - pci_write_config_dword(pdev, PCI_DEV_REG1, reg1); - pci_read_config_dword(pdev, PCI_DEV_REG1, ®1); + sky2_pci_write32(hw, PCI_DEV_REG1, reg1); + reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); udelay(100); } @@ -704,9 +702,9 @@ static void sky2_wol_init(struct sky2_port *sky2) sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl); /* Turn on legacy PCI-Express PME mode */ - pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®1); + reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); reg1 |= PCI_Y2_PME_LEGACY; - pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1); + sky2_pci_write32(hw, PCI_DEV_REG1, reg1); /* block receiver */ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); @@ -1322,9 +1320,10 @@ static int sky2_up(struct net_device *dev) (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) { u16 cmd; - pci_read_config_word(hw->pdev, cap + PCI_X_CMD, &cmd); + cmd = sky2_pci_read16(hw, cap + PCI_X_CMD); cmd &= ~PCI_X_CMD_MAX_SPLIT; - pci_write_config_word(hw->pdev, cap + PCI_X_CMD, cmd); + sky2_pci_write16(hw, cap + PCI_X_CMD, cmd); + } if (netif_msg_ifup(sky2)) @@ -2422,12 +2421,12 @@ static void sky2_hw_intr(struct sky2_hw *hw) if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) { u16 pci_err; - pci_read_config_word(pdev, PCI_STATUS, &pci_err); + pci_err = sky2_pci_read16(hw, PCI_STATUS); if (net_ratelimit()) dev_err(&pdev->dev, "PCI hardware error (0x%x)\n", pci_err); - pci_write_config_word(pdev, PCI_STATUS, + sky2_pci_write16(hw, PCI_STATUS, pci_err | PCI_STATUS_ERROR_BITS); } @@ -2699,13 +2698,10 @@ static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk) static int __devinit sky2_init(struct sky2_hw *hw) { - int rc; u8 t8; /* Enable all clocks and check for bad PCI access */ - rc = pci_write_config_dword(hw->pdev, PCI_DEV_REG3, 0); - if (rc) - return rc; + sky2_pci_write32(hw, PCI_DEV_REG3, 0); sky2_write8(hw, B0_CTST, CS_RST_CLR); @@ -2802,9 +2798,9 @@ static void sky2_reset(struct sky2_hw *hw) sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); /* clear PCI errors, if any */ - pci_read_config_word(pdev, PCI_STATUS, &status); + status = sky2_pci_read16(hw, PCI_STATUS); status |= PCI_STATUS_ERROR_BITS; - pci_write_config_word(pdev, PCI_STATUS, status); + sky2_pci_write16(hw, PCI_STATUS, status); sky2_write8(hw, B0_CTST, CS_MRST_CLR); @@ -3668,32 +3664,33 @@ static int sky2_set_tso(struct net_device *dev, u32 data) static int sky2_get_eeprom_len(struct net_device *dev) { struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; u16 reg2; - pci_read_config_word(sky2->hw->pdev, PCI_DEV_REG2, ®2); + reg2 = sky2_pci_read16(hw, PCI_DEV_REG2); return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8); } -static u32 sky2_vpd_read(struct pci_dev *pdev, int cap, u16 offset) +static u32 sky2_vpd_read(struct sky2_hw *hw, int cap, u16 offset) { u32 val; - pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset); + sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset); do { - pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset); + offset = sky2_pci_read16(hw, cap + PCI_VPD_ADDR); } while (!(offset & PCI_VPD_ADDR_F)); - pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val); + val = sky2_pci_read32(hw, cap + PCI_VPD_DATA); return val; } -static void sky2_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val) +static void sky2_vpd_write(struct sky2_hw *hw, int cap, u16 offset, u32 val) { - pci_write_config_word(pdev, cap + PCI_VPD_DATA, val); - pci_write_config_dword(pdev, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F); + sky2_pci_write16(hw, cap + PCI_VPD_DATA, val); + sky2_pci_write32(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F); do { - pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset); + offset = sky2_pci_read16(hw, cap + PCI_VPD_ADDR); } while (offset & PCI_VPD_ADDR_F); } @@ -3711,7 +3708,7 @@ static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom eeprom->magic = SKY2_EEPROM_MAGIC; while (length > 0) { - u32 val = sky2_vpd_read(sky2->hw->pdev, cap, offset); + u32 val = sky2_vpd_read(sky2->hw, cap, offset); int n = min_t(int, length, sizeof(val)); memcpy(data, &val, n); @@ -3741,10 +3738,10 @@ static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom int n = min_t(int, length, sizeof(val)); if (n < sizeof(val)) - val = sky2_vpd_read(sky2->hw->pdev, cap, offset); + val = sky2_vpd_read(sky2->hw, cap, offset); memcpy(&val, data, n); - sky2_vpd_write(sky2->hw->pdev, cap, offset, val); + sky2_vpd_write(sky2->hw, cap, offset, val); length -= n; data += n; @@ -4180,9 +4177,9 @@ static int __devinit sky2_probe(struct pci_dev *pdev, */ { u32 reg; - pci_read_config_dword(pdev,PCI_DEV_REG2, ®); + reg = sky2_pci_read32(hw, PCI_DEV_REG2); reg &= ~PCI_REV_DESC; - pci_write_config_dword(pdev, PCI_DEV_REG2, reg); + sky2_pci_write32(hw, PCI_DEV_REG2, reg); } #endif @@ -4373,7 +4370,7 @@ static int sky2_resume(struct pci_dev *pdev) if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_FE_P) - pci_write_config_dword(pdev, PCI_DEV_REG3, 0); + sky2_pci_write32(hw, PCI_DEV_REG3, 0); sky2_reset(hw); sky2_write32(hw, B0_IMSK, Y2_IS_BASE); diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h index 69525fd7908..bc646a47edd 100644 --- a/drivers/net/sky2.h +++ b/drivers/net/sky2.h @@ -2128,4 +2128,25 @@ static inline void gma_set_addr(struct sky2_hw *hw, unsigned port, unsigned reg, gma_write16(hw, port, reg+4,(u16) addr[2] | ((u16) addr[3] << 8)); gma_write16(hw, port, reg+8,(u16) addr[4] | ((u16) addr[5] << 8)); } + +/* PCI config space access */ +static inline u32 sky2_pci_read32(const struct sky2_hw *hw, unsigned reg) +{ + return sky2_read32(hw, Y2_CFG_SPC + reg); +} + +static inline u16 sky2_pci_read16(const struct sky2_hw *hw, unsigned reg) +{ + return sky2_read16(hw, Y2_CFG_SPC + reg); +} + +static inline void sky2_pci_write32(struct sky2_hw *hw, unsigned reg, u32 val) +{ + sky2_write32(hw, Y2_CFG_SPC + reg, val); +} + +static inline void sky2_pci_write16(struct sky2_hw *hw, unsigned reg, u16 val) +{ + sky2_write16(hw, Y2_CFG_SPC + reg, val); +} #endif -- cgit v1.2.3 From 7782c8c4d764dfe1b96e02e73d4d5f622fb4a389 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 27 Nov 2007 11:02:32 -0800 Subject: sky2: don't use AER routines Using PCIE advanced error recovery stuff creates more user problems than it's worth. The AER stuff depends on MMCONFIG and in many configurations it just doesn't work. Plus it doesn't add any real functionality to the driver. The sky2 driver handles its own errors fine as is. This reverts 555382cbfc6d2187b53888190755e56f52308cd6 Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 37 +++++++------------------------------ 1 file changed, 7 insertions(+), 30 deletions(-) (limited to 'drivers') diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 65071e40959..a42f1c7ac18 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -31,7 +31,6 @@ #include #include #include -#include #include #include #include @@ -2432,26 +2431,15 @@ static void sky2_hw_intr(struct sky2_hw *hw) if (status & Y2_IS_PCI_EXP) { /* PCI-Express uncorrectable Error occurred */ - int aer = pci_find_aer_capability(hw->pdev); u32 err; - if (aer) { - pci_read_config_dword(pdev, aer + PCI_ERR_UNCOR_STATUS, - &err); - pci_cleanup_aer_uncorrect_error_status(pdev); - } else { - /* Either AER not configured, or not working - * because of bad MMCONFIG, so just do recover - * manually. - */ - err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS); - sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS, - 0xfffffffful); - } - + err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS); + sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS, + 0xfffffffful); if (net_ratelimit()) dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err); + sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS); } if (status & Y2_HWE_L1_MASK) @@ -2806,24 +2794,13 @@ static void sky2_reset(struct sky2_hw *hw) cap = pci_find_capability(pdev, PCI_CAP_ID_EXP); if (cap) { - if (pci_find_aer_capability(pdev)) { - /* Check for advanced error reporting */ - pci_cleanup_aer_uncorrect_error_status(pdev); - pci_cleanup_aer_correct_error_status(pdev); - } else { - dev_warn(&pdev->dev, - "PCI Express Advanced Error Reporting" - " not configured or MMCONFIG problem?\n"); - - sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS, - 0xfffffffful); - } + sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS, + 0xfffffffful); /* If error bit is stuck on ignore it */ if (sky2_read32(hw, B0_HWE_ISRC) & Y2_IS_PCI_EXP) dev_info(&pdev->dev, "ignoring stuck error report bit\n"); - - else if (pci_enable_pcie_error_reporting(pdev)) + else hwe_mask |= Y2_IS_PCI_EXP; } -- cgit v1.2.3 From e970d1f8106514ea619d7a9005b1dc92c6049b32 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 27 Nov 2007 11:02:07 -0800 Subject: sky2: turn of dynamic Tx watermark workaround (FE+ only) Add workaround for issues FE+ (A0) transmit watermark. This is copied verbatim from vendor driver sk98lin (10.22.4.3). Don't have that chip version and no more information seems to be available. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index a42f1c7ac18..3d1dfc94840 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -845,6 +845,13 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port) sky2_set_tx_stfwd(hw, port); } + if (hw->chip_id == CHIP_ID_YUKON_FE_P && + hw->chip_rev == CHIP_REV_YU_FE2_A0) { + /* disable dynamic watermark */ + reg = sky2_read16(hw, SK_REG(port, TX_GMF_EA)); + reg &= ~TX_DYN_WM_ENA; + sky2_write16(hw, SK_REG(port, TX_GMF_EA), reg); + } } /* Assign Ram Buffer allocation to queue */ -- cgit v1.2.3 From f7bbb9098315d712351aba7861a8c9fcf6bf0213 Mon Sep 17 00:00:00 2001 From: Auke Kok Date: Tue, 27 Nov 2007 16:26:36 -0800 Subject: e1000: Fix NAPI state bug when Rx complete Don't exit polling when we have not yet used our budget, this causes the NAPI system to end up with a messed up poll list. Signed-off-by: Auke Kok Signed-off-by: Jeff Garzik --- drivers/net/e1000/e1000_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index cf39473ef90..4f37506ad37 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -3942,7 +3942,7 @@ e1000_clean(struct napi_struct *napi, int budget) &work_done, budget); /* If no Tx and not enough Rx work done, exit the polling mode */ - if ((!tx_cleaned && (work_done < budget)) || + if ((!tx_cleaned && (work_done == 0)) || !netif_running(poll_dev)) { quit_polling: if (likely(adapter->itr_setting & 3)) -- cgit v1.2.3 From 0313d9884f3aaa540ec387125dde58bba01f10a5 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 28 Nov 2007 18:24:59 +0900 Subject: net: smc911x: only enable for mpr2 on sh. The smc911x.h is a bit of a mess, not supporting any sort of generic configuration. For the moment only ARCH_PXA and SH_MAGIC_PANEL_R2 have suitable definitions, so we reflect this in the Kconfig also. While there are other SH boards that will likely turn this on in the 2.6.25 time frame, it's not worth trying to stub around at the moment. Fixes up the allmodconfig build, as noted by akpm. Signed-off-by: Paul Mundt Signed-off-by: Jeff Garzik --- drivers/net/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 1437b37a6b9..d9107e542df 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -926,7 +926,7 @@ config SMC911X tristate "SMSC LAN911[5678] support" select CRC32 select MII - depends on ARCH_PXA || SUPERH + depends on ARCH_PXA || SH_MAGIC_PANEL_R2 help This is a driver for SMSC's LAN911x series of Ethernet chipsets including the new LAN9115, LAN9116, LAN9117, and LAN9118. -- cgit v1.2.3 From 3d26e69533e4df45d03c0b9fa0b3f7e84980b873 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 28 Nov 2007 18:04:31 +0000 Subject: SET_NETDEV_DEV() in fec_mpc52xx.c This helps to allow the Fedora installer to use the built-in Ethernet on the Efika for a network install. Signed-off-by: David Woodhouse Signed-off-by: Jeff Garzik --- drivers/net/fec_mpc52xx.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c index a8a0ee220da..bf5a7caa5b5 100644 --- a/drivers/net/fec_mpc52xx.c +++ b/drivers/net/fec_mpc52xx.c @@ -971,6 +971,8 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match) mpc52xx_fec_reset_stats(ndev); + SET_NETDEV_DEV(ndev, &op->dev); + /* Register the new network device */ rv = register_netdev(ndev); if (rv < 0) -- cgit v1.2.3 From dda93b486a25009456fca6b9c925ab4d7c6b6d6a Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 28 Nov 2007 19:56:34 +0000 Subject: Stop phy code from returning success to unknown ioctls. This kind of sucks, and prevents the Fedora installer from using the device for network installs... [root@efika phy]# iwconfig eth0 Warning: Driver for device eth0 has been compiled with an ancient version of Wireless Extension, while this program support version 11 and later. Some things may be broken... eth0 ESSID:off/any Nickname:"" NWID:0 Channel:0 Access Point: 00:00:BF:81:14:E0 Bit Rate:-1.08206e+06 kb/s Sensitivity=0/0 RTS thr:off Fragment thr:off Encryption key: Power Management:off Signed-off-by: David Woodhouse Signed-off-by: Jeff Garzik --- drivers/net/phy/phy.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 9bc11773705..7c9e6e34950 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -406,6 +406,9 @@ int phy_mii_ioctl(struct phy_device *phydev, && phydev->drv->config_init) phydev->drv->config_init(phydev); break; + + default: + return -ENOTTY; } return 0; -- cgit v1.2.3 From 48f6b053613b62fed7a2fe3255e5568260a8d615 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 28 Nov 2007 14:20:16 -0800 Subject: via-velocity: don't oops on MTU change (resend) The VIA veloicty driver needs the following to allow changing MTU when down. The buffer size needs to be computed when device is brought up, not when device is initialized. This also fixes a bug where the buffer size was computed differently on change_mtu versus initial setting. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/via-velocity.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c index 450e29d7a9f..35cd65d6b9e 100644 --- a/drivers/net/via-velocity.c +++ b/drivers/net/via-velocity.c @@ -1242,6 +1242,9 @@ static int velocity_rx_refill(struct velocity_info *vptr) static int velocity_init_rd_ring(struct velocity_info *vptr) { int ret; + int mtu = vptr->dev->mtu; + + vptr->rx_buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32; vptr->rd_info = kcalloc(vptr->options.numrx, sizeof(struct velocity_rd_info), GFP_KERNEL); @@ -1898,8 +1901,6 @@ static int velocity_open(struct net_device *dev) struct velocity_info *vptr = netdev_priv(dev); int ret; - vptr->rx_buf_sz = (dev->mtu <= 1504 ? PKT_BUF_SZ : dev->mtu + 32); - ret = velocity_init_rings(vptr); if (ret < 0) goto out; @@ -1978,12 +1979,6 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu) velocity_free_rd_ring(vptr); dev->mtu = new_mtu; - if (new_mtu > 8192) - vptr->rx_buf_sz = 9 * 1024; - else if (new_mtu > 4096) - vptr->rx_buf_sz = 8192; - else - vptr->rx_buf_sz = 4 * 1024; ret = velocity_init_rd_ring(vptr); if (ret < 0) -- cgit v1.2.3 From 9ec46c6dae343688ff1136a0899b6a3c5e95e44b Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Fri, 30 Nov 2007 23:13:16 +0100 Subject: LIB82596: correct data types for hardware addresses dma_addr_t is 64bit wide on some architectures (for example 64bit MIPS), so it's not a good idea to use it for 32bit wide addresses in descriptors. Signed-off-by: Thomas Bogendoerfer Signed-off-by: Jeff Garzik --- drivers/net/lib82596.c | 50 +++++++++++++++++++++++++------------------------- 1 file changed, 25 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/net/lib82596.c b/drivers/net/lib82596.c index 9a855e51214..b59f442bbf3 100644 --- a/drivers/net/lib82596.c +++ b/drivers/net/lib82596.c @@ -176,8 +176,8 @@ struct i596_reg { struct i596_tbd { unsigned short size; unsigned short pad; - dma_addr_t next; - dma_addr_t data; + u32 next; + u32 data; u32 cache_pad[5]; /* Total 32 bytes... */ }; @@ -195,12 +195,12 @@ struct i596_cmd { struct i596_cmd *v_next; /* Address from CPUs viewpoint */ unsigned short status; unsigned short command; - dma_addr_t b_next; /* Address from i596 viewpoint */ + u32 b_next; /* Address from i596 viewpoint */ }; struct tx_cmd { struct i596_cmd cmd; - dma_addr_t tbd; + u32 tbd; unsigned short size; unsigned short pad; struct sk_buff *skb; /* So we can free it after tx */ @@ -237,8 +237,8 @@ struct cf_cmd { struct i596_rfd { unsigned short stat; unsigned short cmd; - dma_addr_t b_next; /* Address from i596 viewpoint */ - dma_addr_t rbd; + u32 b_next; /* Address from i596 viewpoint */ + u32 rbd; unsigned short count; unsigned short size; struct i596_rfd *v_next; /* Address from CPUs viewpoint */ @@ -249,18 +249,18 @@ struct i596_rfd { }; struct i596_rbd { - /* hardware data */ - unsigned short count; - unsigned short zero1; - dma_addr_t b_next; - dma_addr_t b_data; /* Address from i596 viewpoint */ - unsigned short size; - unsigned short zero2; - /* driver data */ - struct sk_buff *skb; - struct i596_rbd *v_next; - dma_addr_t b_addr; /* This rbd addr from i596 view */ - unsigned char *v_data; /* Address from CPUs viewpoint */ + /* hardware data */ + unsigned short count; + unsigned short zero1; + u32 b_next; + u32 b_data; /* Address from i596 viewpoint */ + unsigned short size; + unsigned short zero2; + /* driver data */ + struct sk_buff *skb; + struct i596_rbd *v_next; + u32 b_addr; /* This rbd addr from i596 view */ + unsigned char *v_data; /* Address from CPUs viewpoint */ /* Total 32 bytes... */ #ifdef __LP64__ u32 cache_pad[4]; @@ -275,8 +275,8 @@ struct i596_rbd { struct i596_scb { unsigned short status; unsigned short command; - dma_addr_t cmd; - dma_addr_t rfd; + u32 cmd; + u32 rfd; u32 crc_err; u32 align_err; u32 resource_err; @@ -288,14 +288,14 @@ struct i596_scb { }; struct i596_iscp { - u32 stat; - dma_addr_t scb; + u32 stat; + u32 scb; }; struct i596_scp { - u32 sysbus; - u32 pad; - dma_addr_t iscp; + u32 sysbus; + u32 pad; + u32 iscp; }; struct i596_dma { -- cgit v1.2.3 From f88c480dac88a754f84e943cb5539d59cda3c089 Mon Sep 17 00:00:00 2001 From: sonic zhang Date: Tue, 27 Nov 2007 12:47:39 +0800 Subject: Set proper ATA UDMA mode for bf548 according to system clock. UDMA Mode - Frequency compatibility UDMA5 - 100 MB/s - SCLK = 133 MHz UDMA4 - 66 MB/s - SCLK >= 80 MHz UDMA3 - 44.4 MB/s - SCLK >= 50 MHz UDMA2 - 33 MB/s - SCLK >= 40 MHz Signed-off-by: Sonic Zhang Signed-off-by: Jeff Garzik --- drivers/ata/pata_bf54x.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c index 81db405a544..088a41f4e65 100644 --- a/drivers/ata/pata_bf54x.c +++ b/drivers/ata/pata_bf54x.c @@ -1489,6 +1489,8 @@ static int __devinit bfin_atapi_probe(struct platform_device *pdev) int board_idx = 0; struct resource *res; struct ata_host *host; + unsigned int fsclk = get_sclk(); + int udma_mode = 5; const struct ata_port_info *ppi[] = { &bfin_port_info[board_idx], NULL }; @@ -1507,6 +1509,11 @@ static int __devinit bfin_atapi_probe(struct platform_device *pdev) if (res == NULL) return -EINVAL; + while (bfin_port_info[board_idx].udma_mask>0 && udma_fsclk[udma_mode] > fsclk) { + udma_mode--; + bfin_port_info[board_idx].udma_mask >>= 1; + } + /* * Now that that's out of the way, wire up the port.. */ -- cgit v1.2.3 From 2d79ab8fd7a7bf3a45d0e948ae27b3dd95ce95ea Mon Sep 17 00:00:00 2001 From: Saeed Bishara Date: Tue, 27 Nov 2007 17:26:08 +0200 Subject: sata_mv: fix compilation error when enabling DEBUG use sstatus instead status. Signed-off-by: Saeed Bishara Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index a43f64d2775..97c3e116977 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -2170,7 +2170,7 @@ static void mv_phy_reset(struct ata_port *ap, unsigned int *class, mv_scr_read(ap, SCR_ERROR, &serror); mv_scr_read(ap, SCR_CONTROL, &scontrol); DPRINTK("S-regs after ATA_RST: SStat 0x%08x SErr 0x%08x " - "SCtrl 0x%08x\n", status, serror, scontrol); + "SCtrl 0x%08x\n", sstatus, serror, scontrol); } #endif -- cgit v1.2.3 From 1c20a493caa30c5d47a394f9dbd86e6282323db9 Mon Sep 17 00:00:00 2001 From: Kristoffer Nyborg Gregertsen Date: Thu, 29 Nov 2007 12:01:51 +0100 Subject: Several fixes for the AVR32 PATA driver Several fixes for the AVR32 PATA driver: * Updated to use new AVR32 SMC timing API. This removes the need for "magic" constants in signal timing. * Removed the ATA_FLAG_PIO_POLLING, the driver should use interrupts. * Removed .port_disable and .irq_ack as these are no longer needed. * Improved some comments. Signed-off-by: Kristoffer Nyborg Gregertsen Signed-off-by: Jeff Garzik --- drivers/ata/pata_at32.c | 61 ++++++++++++++++++++++++++----------------------- 1 file changed, 33 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/pata_at32.c b/drivers/ata/pata_at32.c index bb250a48e27..67e574de31e 100644 --- a/drivers/ata/pata_at32.c +++ b/drivers/ata/pata_at32.c @@ -28,7 +28,7 @@ #include #define DRV_NAME "pata_at32" -#define DRV_VERSION "0.0.2" +#define DRV_VERSION "0.0.3" /* * CompactFlash controller memory layout relative to the base address: @@ -64,6 +64,8 @@ * Mode 2 | 8.3 | 240 ns | 0x07 * Mode 3 | 11.1 | 180 ns | 0x0f * Mode 4 | 16.7 | 120 ns | 0x1f + * + * Alter PIO_MASK below according to table to set maximal PIO mode. */ #define PIO_MASK (0x1f) @@ -85,36 +87,40 @@ struct at32_ide_info { */ static int pata_at32_setup_timing(struct device *dev, struct at32_ide_info *info, - const struct ata_timing *timing) + const struct ata_timing *ata) { - /* These two values are found through testing */ - const int min_recover = 25; - const int ncs_hold = 15; - struct smc_config *smc = &info->smc; + struct smc_timing timing; int active; int recover; + memset(&timing, 0, sizeof(struct smc_timing)); + /* Total cycle time */ - smc->read_cycle = timing->cyc8b; + timing.read_cycle = ata->cyc8b; /* DIOR <= CFIOR timings */ - smc->nrd_setup = timing->setup; - smc->nrd_pulse = timing->act8b; + timing.nrd_setup = ata->setup; + timing.nrd_pulse = ata->act8b; + timing.nrd_recover = ata->rec8b; + + /* Convert nanosecond timing to clock cycles */ + smc_set_timing(smc, &timing); - /* Compute recover, extend total cycle if needed */ - active = smc->nrd_setup + smc->nrd_pulse; + /* Add one extra cycle setup due to signal ring */ + smc->nrd_setup = smc->nrd_setup + 1; + + active = smc->nrd_setup + smc->nrd_pulse; recover = smc->read_cycle - active; - if (recover < min_recover) { - smc->read_cycle = active + min_recover; - recover = min_recover; - } + /* Need at least two cycles recovery */ + if (recover < 2) + smc->read_cycle = active + 2; /* (CS0, CS1, DIR, OE) <= (CFCE1, CFCE2, CFRNW, NCSX) timings */ - smc->ncs_read_setup = 0; - smc->ncs_read_pulse = active + ncs_hold; + smc->ncs_read_setup = 1; + smc->ncs_read_pulse = smc->read_cycle - 2; /* Write timings same as read timings */ smc->write_cycle = smc->read_cycle; @@ -123,11 +129,13 @@ static int pata_at32_setup_timing(struct device *dev, smc->ncs_write_setup = smc->ncs_read_setup; smc->ncs_write_pulse = smc->ncs_read_pulse; - /* Do some debugging output */ - dev_dbg(dev, "SMC: C=%d S=%d P=%d R=%d NCSS=%d NCSP=%d NCSR=%d\n", + /* Do some debugging output of ATA and SMC timings */ + dev_dbg(dev, "ATA: C=%d S=%d P=%d R=%d\n", + ata->cyc8b, ata->setup, ata->act8b, ata->rec8b); + + dev_dbg(dev, "SMC: C=%d S=%d P=%d NS=%d NP=%d\n", smc->read_cycle, smc->nrd_setup, smc->nrd_pulse, - recover, smc->ncs_read_setup, smc->ncs_read_pulse, - smc->read_cycle - smc->ncs_read_pulse); + smc->ncs_read_setup, smc->ncs_read_pulse); /* Finally, configure the SMC */ return smc_set_configuration(info->cs, smc); @@ -182,7 +190,6 @@ static struct scsi_host_template at32_sht = { }; static struct ata_port_operations at32_port_ops = { - .port_disable = ata_port_disable, .set_piomode = pata_at32_set_piomode, .tf_load = ata_tf_load, .tf_read = ata_tf_read, @@ -203,7 +210,6 @@ static struct ata_port_operations at32_port_ops = { .irq_clear = pata_at32_irq_clear, .irq_on = ata_irq_on, - .irq_ack = ata_irq_ack, .port_start = ata_sff_port_start, }; @@ -223,8 +229,7 @@ static int __init pata_at32_init_one(struct device *dev, /* Setup ATA bindings */ ap->ops = &at32_port_ops; ap->pio_mask = PIO_MASK; - ap->flags = ATA_FLAG_MMIO | ATA_FLAG_SLAVE_POSS - | ATA_FLAG_PIO_POLLING; + ap->flags |= ATA_FLAG_MMIO | ATA_FLAG_SLAVE_POSS; /* * Since all 8-bit taskfile transfers has to go on the lower @@ -357,12 +362,12 @@ static int __init pata_at32_probe(struct platform_device *pdev) info->smc.tdf_mode = 0; /* TDF optimization disabled */ info->smc.tdf_cycles = 0; /* No TDF wait cycles */ - /* Setup ATA timing */ + /* Setup SMC to ATA timing */ ret = pata_at32_setup_timing(dev, info, &initial_timing); if (ret) goto err_setup_timing; - /* Setup ATA addresses */ + /* Map ATA address space */ ret = -ENOMEM; info->ide_addr = devm_ioremap(dev, info->res_ide.start, 16); info->alt_addr = devm_ioremap(dev, info->res_alt.start, 16); @@ -373,7 +378,7 @@ static int __init pata_at32_probe(struct platform_device *pdev) pata_at32_debug_bus(dev, info); #endif - /* Register ATA device */ + /* Setup and register ATA device */ ret = pata_at32_init_one(dev, info); if (ret) goto err_ata_device; -- cgit v1.2.3 From abb6a88974a8c92b049eddf37685899c4021cf0a Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 28 Nov 2007 23:16:09 +0900 Subject: libata: report protocol and full CDB on error Protocol and CDB allocation size field are important in determining what went wrong with ATAPI commands. Report them on failure. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/libata-eh.c | 42 +++++++++++++++++++++++++++++++++--------- 1 file changed, 33 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 0dac69db1fd..e6605f03864 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -1850,30 +1850,54 @@ static void ata_eh_link_report(struct ata_link *link) ehc->i.serror & SERR_DEV_XCHG ? "DevExch " : ""); for (tag = 0; tag < ATA_MAX_QUEUE; tag++) { - static const char *dma_str[] = { - [DMA_BIDIRECTIONAL] = "bidi", - [DMA_TO_DEVICE] = "out", - [DMA_FROM_DEVICE] = "in", - [DMA_NONE] = "", - }; struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); struct ata_taskfile *cmd = &qc->tf, *res = &qc->result_tf; + const u8 *cdb = qc->cdb; + char data_buf[20] = ""; + char cdb_buf[70] = ""; if (!(qc->flags & ATA_QCFLAG_FAILED) || qc->dev->link != link || !qc->err_mask) continue; + if (qc->dma_dir != DMA_NONE) { + static const char *dma_str[] = { + [DMA_BIDIRECTIONAL] = "bidi", + [DMA_TO_DEVICE] = "out", + [DMA_FROM_DEVICE] = "in", + }; + static const char *prot_str[] = { + [ATA_PROT_PIO] = "pio", + [ATA_PROT_DMA] = "dma", + [ATA_PROT_NCQ] = "ncq", + [ATA_PROT_ATAPI] = "pio", + [ATA_PROT_ATAPI_DMA] = "dma", + }; + + snprintf(data_buf, sizeof(data_buf), " %s %u %s", + prot_str[qc->tf.protocol], qc->nbytes, + dma_str[qc->dma_dir]); + } + + if (is_atapi_taskfile(&qc->tf)) + snprintf(cdb_buf, sizeof(cdb_buf), + "cdb %02x %02x %02x %02x %02x %02x %02x %02x " + "%02x %02x %02x %02x %02x %02x %02x %02x\n ", + cdb[0], cdb[1], cdb[2], cdb[3], + cdb[4], cdb[5], cdb[6], cdb[7], + cdb[8], cdb[9], cdb[10], cdb[11], + cdb[12], cdb[13], cdb[14], cdb[15]); + ata_dev_printk(qc->dev, KERN_ERR, "cmd %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x " - "tag %d cdb 0x%x data %u %s\n " + "tag %d%s\n %s" "res %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x " "Emask 0x%x (%s)%s\n", cmd->command, cmd->feature, cmd->nsect, cmd->lbal, cmd->lbam, cmd->lbah, cmd->hob_feature, cmd->hob_nsect, cmd->hob_lbal, cmd->hob_lbam, cmd->hob_lbah, - cmd->device, qc->tag, qc->cdb[0], qc->nbytes, - dma_str[qc->dma_dir], + cmd->device, qc->tag, data_buf, cdb_buf, res->command, res->feature, res->nsect, res->lbal, res->lbam, res->lbah, res->hob_feature, res->hob_nsect, -- cgit v1.2.3 From e9f3340673c1da32041f2a282b166c72cd78632e Mon Sep 17 00:00:00 2001 From: Peter Missel Date: Tue, 27 Nov 2007 18:04:42 +0100 Subject: libata: More IVB horkage from TSST libata: Add more TSST (Samsung/Toshiba) IDE drives with broken cable detection validation bits. signed-off-by: Peter Missel (peter.missel@onlinehome.de) Acked-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 33f06277b3b..53d11017a5c 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4185,6 +4185,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { /* Devices which get the IVB wrong */ { "QUANTUM FIREBALLlct10 05", "A03.0900", ATA_HORKAGE_IVB, }, { "TSSTcorp CDDVDW SH-S202J", "SB00", ATA_HORKAGE_IVB, }, + { "TSSTcorp CDDVDW SH-S202J", "SB01", ATA_HORKAGE_IVB, }, + { "TSSTcorp CDDVDW SH-S202N", "SB00", ATA_HORKAGE_IVB, }, + { "TSSTcorp CDDVDW SH-S202N", "SB01", ATA_HORKAGE_IVB, }, /* End Marker */ { } -- cgit v1.2.3 From 04d86d6fc0477f217d60667adfc26f1f56264cc9 Mon Sep 17 00:00:00 2001 From: Peter Schwenke Date: Fri, 30 Nov 2007 15:28:29 +0900 Subject: ata_piix: add more toshiba laptops to broken suspend list Add more toshiba laptops to broken suspend list. This is from OSDL bugzilla bug 7780. tj: re-formatted patch and added description and SOB. Signed-off-by: Peter Schwenke Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/ata_piix.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 483269db2c7..b538e1d22bf 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -966,6 +966,13 @@ static int piix_broken_suspend(void) DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M3"), }, }, + { + .ident = "TECRA M3", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Tecra M3"), + }, + }, { .ident = "TECRA M5", .matches = { @@ -980,6 +987,20 @@ static int piix_broken_suspend(void) DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M7"), }, }, + { + .ident = "TECRA A8", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A8"), + }, + }, + { + .ident = "Satellite R25", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Satellite R25"), + }, + }, { .ident = "Satellite U200", .matches = { @@ -987,6 +1008,13 @@ static int piix_broken_suspend(void) DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U200"), }, }, + { + .ident = "Satellite U200", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE U200"), + }, + }, { .ident = "Satellite Pro U200", .matches = { -- cgit v1.2.3 From 0f9fe9b7148f95f018ae2c97f7fa1a35364ea785 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 30 Nov 2007 15:23:16 +0000 Subject: libata: Fix early use of port printk. (Was Re: ata4294967295: failed to start port (errno=-19)) On Fri, 30 Nov 2007 14:34:11 +0200 (EET) Meelis Roos wrote: > > Can you stick a stack trace in at that point ? That would help diagnose > > it a great deal quicker. > > Finally done - found out hard way that BUG() is too bad and > dump_st5ack() suits me better. Thanks. This should fix the real cause, and also allow for port start to fail politely with -ENODEV. Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 53d11017a5c..b514a80f137 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6967,12 +6967,11 @@ int ata_host_start(struct ata_host *host) if (ap->ops->port_start) { rc = ap->ops->port_start(ap); if (rc) { - ata_port_printk(ap, KERN_ERR, "failed to " - "start port (errno=%d)\n", rc); + if (rc != -ENODEV) + dev_printk(KERN_ERR, host->dev, "failed to start port %d (errno=%d)\n", i, rc); goto err_out; } } - ata_eh_freeze_port(ap); } -- cgit v1.2.3 From 02a121da5a53d415b6596bc19cc6999d295d32a4 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Sat, 1 Dec 2007 13:07:22 -0500 Subject: sata_mv: Fix broken Marvell 7042 support. sata_mv: Fix broken Marvell 7042 support. The Marvell 7042 chip is more or less the same as the 6042 internally, but sports a PCIe bus. Despite having identical SATA cores, the 7042 does differ from its PCI bus counterparts in placment and layout of certain bus related registers. This patch fixes sata_mv to distinguish between the PCI bus registers of earlier chips, and the PCIe bus registers of the 7042. Specifically, move the offsets and bit patterns for the PCI/PCIe interrupt cause/mask registers into the struct mv_host_priv, as these values differ between the 6xxx and 7xxx series chips. This fixes the driver to not access reserved PCI addresses, and prevents the lockups reported in linux-2.6.24 with 7042 boards. Also add a new PCI ID for the Highpoint 2300 7042-based board that I'm using for testing this stuff here. Tested with Marvell 6081 + 7042 chips, on x86 & x86_64. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 62 ++++++++++++++++++++++++++++++++++----------------- 1 file changed, 42 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 97c3e116977..8d864e5e97e 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -164,10 +164,14 @@ enum { MV_PCI_ERR_ATTRIBUTE = 0x1d48, MV_PCI_ERR_COMMAND = 0x1d50, - PCI_IRQ_CAUSE_OFS = 0x1d58, - PCI_IRQ_MASK_OFS = 0x1d5c, + PCI_IRQ_CAUSE_OFS = 0x1d58, + PCI_IRQ_MASK_OFS = 0x1d5c, PCI_UNMASK_ALL_IRQS = 0x7fffff, /* bits 22-0 */ + PCIE_IRQ_CAUSE_OFS = 0x1900, + PCIE_IRQ_MASK_OFS = 0x1910, + PCIE_UNMASK_ALL_IRQS = 0x70a, /* assorted bits */ + HC_MAIN_IRQ_CAUSE_OFS = 0x1d60, HC_MAIN_IRQ_MASK_OFS = 0x1d64, PORT0_ERR = (1 << 0), /* shift by port # */ @@ -303,6 +307,7 @@ enum { MV_HP_GEN_I = (1 << 6), /* Generation I: 50xx */ MV_HP_GEN_II = (1 << 7), /* Generation II: 60xx */ MV_HP_GEN_IIE = (1 << 8), /* Generation IIE: 6042/7042 */ + MV_HP_PCIE = (1 << 9), /* PCIe bus/regs: 7042 */ /* Port private flags (pp_flags) */ MV_PP_FLAG_EDMA_EN = (1 << 0), /* is EDMA engine enabled? */ @@ -388,7 +393,15 @@ struct mv_port_signal { u32 pre; }; -struct mv_host_priv; +struct mv_host_priv { + u32 hp_flags; + struct mv_port_signal signal[8]; + const struct mv_hw_ops *ops; + u32 irq_cause_ofs; + u32 irq_mask_ofs; + u32 unmask_all_irqs; +}; + struct mv_hw_ops { void (*phy_errata)(struct mv_host_priv *hpriv, void __iomem *mmio, unsigned int port); @@ -401,12 +414,6 @@ struct mv_hw_ops { void (*reset_bus)(struct pci_dev *pdev, void __iomem *mmio); }; -struct mv_host_priv { - u32 hp_flags; - struct mv_port_signal signal[8]; - const struct mv_hw_ops *ops; -}; - static void mv_irq_clear(struct ata_port *ap); static int mv_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val); static int mv_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val); @@ -631,11 +638,13 @@ static const struct pci_device_id mv_pci_tbl[] = { /* Adaptec 1430SA */ { PCI_VDEVICE(ADAPTEC2, 0x0243), chip_7042 }, - { PCI_VDEVICE(TTI, 0x2310), chip_7042 }, - - /* add Marvell 7042 support */ + /* Marvell 7042 support */ { PCI_VDEVICE(MARVELL, 0x7042), chip_7042 }, + /* Highpoint RocketRAID PCIe series */ + { PCI_VDEVICE(TTI, 0x2300), chip_7042 }, + { PCI_VDEVICE(TTI, 0x2310), chip_7042 }, + { } /* terminate list */ }; @@ -1648,13 +1657,14 @@ static void mv_host_intr(struct ata_host *host, u32 relevant, unsigned int hc) static void mv_pci_error(struct ata_host *host, void __iomem *mmio) { + struct mv_host_priv *hpriv = host->private_data; struct ata_port *ap; struct ata_queued_cmd *qc; struct ata_eh_info *ehi; unsigned int i, err_mask, printed = 0; u32 err_cause; - err_cause = readl(mmio + PCI_IRQ_CAUSE_OFS); + err_cause = readl(mmio + hpriv->irq_cause_ofs); dev_printk(KERN_ERR, host->dev, "PCI ERROR; PCI IRQ cause=0x%08x\n", err_cause); @@ -1662,7 +1672,7 @@ static void mv_pci_error(struct ata_host *host, void __iomem *mmio) DPRINTK("All regs @ PCI error\n"); mv_dump_all_regs(mmio, -1, to_pci_dev(host->dev)); - writelfl(0, mmio + PCI_IRQ_CAUSE_OFS); + writelfl(0, mmio + hpriv->irq_cause_ofs); for (i = 0; i < host->n_ports; i++) { ap = host->ports[i]; @@ -1926,6 +1936,8 @@ static int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, #define ZERO(reg) writel(0, mmio + (reg)) static void mv_reset_pci_bus(struct pci_dev *pdev, void __iomem *mmio) { + struct ata_host *host = dev_get_drvdata(&pdev->dev); + struct mv_host_priv *hpriv = host->private_data; u32 tmp; tmp = readl(mmio + MV_PCI_MODE); @@ -1937,8 +1949,8 @@ static void mv_reset_pci_bus(struct pci_dev *pdev, void __iomem *mmio) writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT); ZERO(HC_MAIN_IRQ_MASK_OFS); ZERO(MV_PCI_SERR_MASK); - ZERO(PCI_IRQ_CAUSE_OFS); - ZERO(PCI_IRQ_MASK_OFS); + ZERO(hpriv->irq_cause_ofs); + ZERO(hpriv->irq_mask_ofs); ZERO(MV_PCI_ERR_LOW_ADDRESS); ZERO(MV_PCI_ERR_HIGH_ADDRESS); ZERO(MV_PCI_ERR_ATTRIBUTE); @@ -2490,6 +2502,7 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx) break; case chip_7042: + hp_flags |= MV_HP_PCIE; case chip_6042: hpriv->ops = &mv6xxx_ops; hp_flags |= MV_HP_GEN_IIE; @@ -2516,6 +2529,15 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx) } hpriv->hp_flags = hp_flags; + if (hp_flags & MV_HP_PCIE) { + hpriv->irq_cause_ofs = PCIE_IRQ_CAUSE_OFS; + hpriv->irq_mask_ofs = PCIE_IRQ_MASK_OFS; + hpriv->unmask_all_irqs = PCIE_UNMASK_ALL_IRQS; + } else { + hpriv->irq_cause_ofs = PCI_IRQ_CAUSE_OFS; + hpriv->irq_mask_ofs = PCI_IRQ_MASK_OFS; + hpriv->unmask_all_irqs = PCI_UNMASK_ALL_IRQS; + } return 0; } @@ -2595,10 +2617,10 @@ static int mv_init_host(struct ata_host *host, unsigned int board_idx) } /* Clear any currently outstanding host interrupt conditions */ - writelfl(0, mmio + PCI_IRQ_CAUSE_OFS); + writelfl(0, mmio + hpriv->irq_cause_ofs); /* and unmask interrupt generation for host regs */ - writelfl(PCI_UNMASK_ALL_IRQS, mmio + PCI_IRQ_MASK_OFS); + writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs); if (IS_GEN_I(hpriv)) writelfl(~HC_MAIN_MASKED_IRQS_5, mmio + HC_MAIN_IRQ_MASK_OFS); @@ -2609,8 +2631,8 @@ static int mv_init_host(struct ata_host *host, unsigned int board_idx) "PCI int cause/mask=0x%08x/0x%08x\n", readl(mmio + HC_MAIN_IRQ_CAUSE_OFS), readl(mmio + HC_MAIN_IRQ_MASK_OFS), - readl(mmio + PCI_IRQ_CAUSE_OFS), - readl(mmio + PCI_IRQ_MASK_OFS)); + readl(mmio + hpriv->irq_cause_ofs), + readl(mmio + hpriv->irq_mask_ofs)); done: return rc; -- cgit v1.2.3 From 357dc4c3f13cb5c1e3b40a09cbe6ff1b0df2c7c3 Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Thu, 29 Nov 2007 16:22:43 +0800 Subject: ACPI: Delete the IRQ operation in throttling controll via PTC The IRQ operation(enable/disable) should be avoided when throttling is controlled via PTC method. It is replaced by the migration of task. This fixes an oops on T61 -- a regression due to f79f06ab9f86 b/c FixedHW support tried to read remote MSR with interrupts disabled. Signed-off-by: Zhao Yakui Signed-off-by: Len Brown --- drivers/acpi/processor_throttling.c | 36 ++++++++++++++++++++++++++++-------- 1 file changed, 28 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index c26c61fb36c..6742d7bc477 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include #include @@ -413,7 +414,7 @@ static int acpi_throttling_rdmsr(struct acpi_processor *pr, } else { msr_low = 0; msr_high = 0; - rdmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, + rdmsr_safe(MSR_IA32_THERM_CONTROL, (u32 *)&msr_low , (u32 *) &msr_high); msr = (msr_high << 32) | msr_low; *value = (acpi_integer) msr; @@ -438,7 +439,7 @@ static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value) "HARDWARE addr space,NOT supported yet\n"); } else { msr = value; - wrmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, + wrmsr_safe(MSR_IA32_THERM_CONTROL, msr & 0xffffffff, msr >> 32); ret = 0; } @@ -572,21 +573,32 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr) return -ENODEV; pr->throttling.state = 0; - local_irq_disable(); + value = 0; ret = acpi_read_throttling_status(pr, &value); if (ret >= 0) { state = acpi_get_throttling_state(pr, value); pr->throttling.state = state; } - local_irq_enable(); return 0; } static int acpi_processor_get_throttling(struct acpi_processor *pr) { - return pr->throttling.acpi_processor_get_throttling(pr); + cpumask_t saved_mask; + int ret; + + /* + * Migrate task to the cpu pointed by pr. + */ + saved_mask = current->cpus_allowed; + set_cpus_allowed(current, cpumask_of_cpu(pr->id)); + ret = pr->throttling.acpi_processor_get_throttling(pr); + /* restore the previous state */ + set_cpus_allowed(current, saved_mask); + + return ret; } static int acpi_processor_get_fadt_info(struct acpi_processor *pr) @@ -717,21 +729,29 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, if (state < pr->throttling_platform_limit) return -EPERM; - local_irq_disable(); value = 0; ret = acpi_get_throttling_value(pr, state, &value); if (ret >= 0) { acpi_write_throttling_state(pr, value); pr->throttling.state = state; } - local_irq_enable(); return 0; } int acpi_processor_set_throttling(struct acpi_processor *pr, int state) { - return pr->throttling.acpi_processor_set_throttling(pr, state); + cpumask_t saved_mask; + int ret; + /* + * Migrate task to the cpu pointed by pr. + */ + saved_mask = current->cpus_allowed; + set_cpus_allowed(current, cpumask_of_cpu(pr->id)); + ret = pr->throttling.acpi_processor_set_throttling(pr, state); + /* restore the previous state */ + set_cpus_allowed(current, saved_mask); + return ret; } int acpi_processor_get_throttling_info(struct acpi_processor *pr) -- cgit v1.2.3 From 152c300d007c70c4a1847dad39ecdaba22e7d457 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 17 Oct 2007 16:10:18 -0400 Subject: ACPICA: fix acpi-cpufreq boot crash due to _PSD return-by-reference Changed resolution of named references in packages Fixed a problem with the Package operator where all named references were created as object references and left otherwise unresolved. According to the ACPI specification, a Package can only contain Data Objects or references to control methods. The implication is that named references to Data Objects (Integer, Buffer, String, Package, BufferField, Field) should be resolved immediately upon package creation. This is the approach taken with this change. References to all other named objects (Methods, Devices, Scopes, etc.) are all now properly created as reference objects. http://bugzilla.kernel.org/show_bug.cgi?id=5328 http://bugzilla.kernel.org/show_bug.cgi?id=9429 Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/dispatcher/dsobject.c | 91 +++++++++++++++++++++++++++++++++++--- 1 file changed, 85 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c index a474ca2334d..954ac8ce958 100644 --- a/drivers/acpi/dispatcher/dsobject.c +++ b/drivers/acpi/dispatcher/dsobject.c @@ -137,6 +137,71 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, return_ACPI_STATUS(status); } } + + /* Special object resolution for elements of a package */ + + if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) || + (op->common.parent->common.aml_opcode == + AML_VAR_PACKAGE_OP)) { + /* + * Attempt to resolve the node to a value before we insert it into + * the package. If this is a reference to a common data type, + * resolve it immediately. According to the ACPI spec, package + * elements can only be "data objects" or method references. + * Attempt to resolve to an Integer, Buffer, String or Package. + * If cannot, return the named reference (for things like Devices, + * Methods, etc.) Buffer Fields and Fields will resolve to simple + * objects (int/buf/str/pkg). + * + * NOTE: References to things like Devices, Methods, Mutexes, etc. + * will remain as named references. This behavior is not described + * in the ACPI spec, but it appears to be an oversight. + */ + obj_desc = (union acpi_operand_object *)op->common.node; + + status = + acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR + (struct + acpi_namespace_node, + &obj_desc), + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + switch (op->common.node->type) { + /* + * For these types, we need the actual node, not the subobject. + * However, the subobject got an extra reference count above. + */ + case ACPI_TYPE_MUTEX: + case ACPI_TYPE_METHOD: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_EVENT: + case ACPI_TYPE_REGION: + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_THERMAL: + + obj_desc = + (union acpi_operand_object *)op->common. + node; + break; + + default: + break; + } + + /* + * If above resolved to an operand object, we are done. Otherwise, + * we have a NS node, we must create the package entry as a named + * reference. + */ + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != + ACPI_DESC_TYPE_NAMED) { + goto exit; + } + } } /* Create and init a new internal ACPI object */ @@ -156,6 +221,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, return_ACPI_STATUS(status); } + exit: *obj_desc_ptr = obj_desc; return_ACPI_STATUS(AE_OK); } @@ -356,12 +422,25 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, arg = arg->common.next; for (i = 0; arg && (i < element_count); i++) { if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { - - /* This package element is already built, just get it */ - - obj_desc->package.elements[i] = - ACPI_CAST_PTR(union acpi_operand_object, - arg->common.node); + if (arg->common.node->type == ACPI_TYPE_METHOD) { + /* + * A method reference "looks" to the parser to be a method + * invocation, so we special case it here + */ + arg->common.aml_opcode = AML_INT_NAMEPATH_OP; + status = + acpi_ds_build_internal_object(walk_state, + arg, + &obj_desc-> + package. + elements[i]); + } else { + /* This package element is already built, just get it */ + + obj_desc->package.elements[i] = + ACPI_CAST_PTR(union acpi_operand_object, + arg->common.node); + } } else { status = acpi_ds_build_internal_object(walk_state, arg, &obj_desc-> -- cgit v1.2.3 From eafe1aa37e6ec2d56f14732b5240c4dd09f0613a Mon Sep 17 00:00:00 2001 From: Karsten Keil Date: Sat, 1 Dec 2007 12:16:15 -0800 Subject: I4L: fix isdn_ioctl memory overrun vulnerability Fix possible memory overrun issue in the isdn ioctl code. Found by ADLAB Signed-off-by: Karsten Keil Cc: ADLAB Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/i4l/isdn_common.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c index c6df2925ebd..d6952959d72 100644 --- a/drivers/isdn/i4l/isdn_common.c +++ b/drivers/isdn/i4l/isdn_common.c @@ -1515,6 +1515,7 @@ isdn_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg) if (copy_from_user(&iocts, argp, sizeof(isdn_ioctl_struct))) return -EFAULT; + iocts.drvid[sizeof(iocts.drvid)-1] = 0; if (strlen(iocts.drvid)) { if ((p = strchr(iocts.drvid, ','))) *p = 0; @@ -1599,6 +1600,7 @@ isdn_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg) if (copy_from_user(&iocts, argp, sizeof(isdn_ioctl_struct))) return -EFAULT; + iocts.drvid[sizeof(iocts.drvid)-1] = 0; if (strlen(iocts.drvid)) { drvidx = -1; for (i = 0; i < ISDN_MAX_DRIVERS; i++) @@ -1643,7 +1645,7 @@ isdn_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg) } else { p = (char __user *) iocts.arg; for (i = 0; i < 10; i++) { - sprintf(bname, "%s%s", + snprintf(bname, sizeof(bname), "%s%s", strlen(dev->drv[drvidx]->msn2eaz[i]) ? dev->drv[drvidx]->msn2eaz[i] : "_", (i < 9) ? "," : "\0"); @@ -1673,6 +1675,7 @@ isdn_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg) char *p; if (copy_from_user(&iocts, argp, sizeof(isdn_ioctl_struct))) return -EFAULT; + iocts.drvid[sizeof(iocts.drvid)-1] = 0; if (strlen(iocts.drvid)) { if ((p = strchr(iocts.drvid, ','))) *p = 0; -- cgit v1.2.3 From b00296fb781acfafa93687000cdef72b8922bb40 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 1 Dec 2007 12:16:29 -0800 Subject: uml: add !UML dependencies The previous commit ("uml: keep UML Kconfig in sync with x86") is not enough, unfortunately. If we go that way, we need to add dependencies on !UML for several options. Signed-off-by: Al Viro Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/crypto/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 5fd6688a444..ddd3a259cea 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -12,7 +12,7 @@ if CRYPTO_HW config CRYPTO_DEV_PADLOCK tristate "Support for VIA PadLock ACE" - depends on X86_32 + depends on X86_32 && !UML select CRYPTO_ALGAPI help Some VIA processors come with an integrated crypto engine -- cgit v1.2.3 From 561d9a969455cb009bb15b63e1d925dc527e7a9d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 3 Dec 2007 18:01:50 +0100 Subject: HWMON: coretemp, suspend fix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It's not permitted to unregister a device after devices have been suspended. It causes deadlocks to appear on systems with coretemp hwmon loaded.  To avoid this, we can make coretemp_cpu_callback() do nothing if the _FROZEN bit is set in action.   Also, in other cases it's generally too late to unregister the coretemp device if the CPU is already dead, so it should be unregistered on CPU_DOWN_PREPARE.   Signed-off-by: Rafael J. Wysocki Acked-by: Mark M. Hoffman Cc: Jiri Slaby Cc: Andrew Morton Signed-off-by: Len Brown --- drivers/hwmon/coretemp.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 5c82ec7f8bb..3ee60d26e3a 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -337,11 +337,10 @@ static int coretemp_cpu_callback(struct notifier_block *nfb, switch (action) { case CPU_ONLINE: - case CPU_ONLINE_FROZEN: + case CPU_DOWN_FAILED: coretemp_device_add(cpu); break; - case CPU_DEAD: - case CPU_DEAD_FROZEN: + case CPU_DOWN_PREPARE: coretemp_device_remove(cpu); break; } -- cgit v1.2.3 From c94dec99f9759c41cadf0f2781846da5b40a98f6 Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Tue, 4 Dec 2007 16:09:01 +0100 Subject: [S390] cio: Issue SenseID per path. We may receive a unit check for every path when we issue a SenseID. Unfortunately, the channel subsystem will try on a different path every time if we use a lpm of 0xff, which will exhaust our retry counter. Therefore, revert SenseID to its previous per-path behaviour and just leave out the suspend multipath reconnect. Signed-off-by: Cornelia Huck Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/device_id.c | 37 ++++++++++++++++++++++++++++--------- 1 file changed, 28 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c index 2f6bf462425..156f3f9786b 100644 --- a/drivers/s390/cio/device_id.c +++ b/drivers/s390/cio/device_id.c @@ -113,6 +113,7 @@ __ccw_device_sense_id_start(struct ccw_device *cdev) { struct subchannel *sch; struct ccw1 *ccw; + int ret; sch = to_subchannel(cdev->dev.parent); /* Setup sense channel program. */ @@ -124,9 +125,25 @@ __ccw_device_sense_id_start(struct ccw_device *cdev) /* Reset device status. */ memset(&cdev->private->irb, 0, sizeof(struct irb)); - cdev->private->flags.intretry = 0; - return cio_start(sch, ccw, LPM_ANYPATH); + /* Try on every path. */ + ret = -ENODEV; + while (cdev->private->imask != 0) { + if ((sch->opm & cdev->private->imask) != 0 && + cdev->private->iretry > 0) { + cdev->private->iretry--; + /* Reset internal retry indication. */ + cdev->private->flags.intretry = 0; + ret = cio_start (sch, cdev->private->iccws, + cdev->private->imask); + /* ret is 0, -EBUSY, -EACCES or -ENODEV */ + if (ret != -EACCES) + return ret; + } + cdev->private->imask >>= 1; + cdev->private->iretry = 5; + } + return ret; } void @@ -136,7 +153,8 @@ ccw_device_sense_id_start(struct ccw_device *cdev) memset (&cdev->private->senseid, 0, sizeof (struct senseid)); cdev->private->senseid.cu_type = 0xFFFF; - cdev->private->iretry = 3; + cdev->private->imask = 0x80; + cdev->private->iretry = 5; ret = __ccw_device_sense_id_start(cdev); if (ret && ret != -EBUSY) ccw_device_sense_id_done(cdev, ret); @@ -252,13 +270,14 @@ ccw_device_sense_id_irq(struct ccw_device *cdev, enum dev_event dev_event) ccw_device_sense_id_done(cdev, ret); break; case -EACCES: /* channel is not operational. */ + sch->lpm &= ~cdev->private->imask; + cdev->private->imask >>= 1; + cdev->private->iretry = 5; + /* fall through. */ case -EAGAIN: /* try again. */ - cdev->private->iretry--; - if (cdev->private->iretry > 0) { - ret = __ccw_device_sense_id_start(cdev); - if (ret == 0 || ret == -EBUSY) - break; - } + ret = __ccw_device_sense_id_start(cdev); + if (ret == 0 || ret == -EBUSY) + break; /* fall through. */ default: /* Sense ID failed. Try asking VM. */ if (MACHINE_IS_VM) { -- cgit v1.2.3 From 671756162cfb0b3ccbb6a0047baa3010885561a2 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Tue, 4 Dec 2007 16:09:02 +0100 Subject: [S390] cio: add missing reprobe loop end statement Add loop end statement to prevent looping over empty subchannel sets. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/css.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 6db31089d2d..c3df2cd009a 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -451,6 +451,7 @@ static int reprobe_subchannel(struct subchannel_id schid, void *data) break; case -ENXIO: case -ENOMEM: + case -EIO: /* These should abort looping */ break; default: -- cgit v1.2.3 From 436d1bc7fe6e78e37fe5f5022ea4d5c133d825eb Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Tue, 4 Dec 2007 16:09:03 +0100 Subject: [S390] dcssblk: prevent early access without own make_request function When loading a dcss segment with the dcssblk driver, sometimes the following kind of message appears: bio too big device dcssblk0 (8 > 0) Buffer I/O error on device dcssblk0, logical block 172016 .. The fix is to move the disk registration after setting the make_request function, to avoid calls into generic_make_request for dcssblock without having the make_request function set up properly. Cc: Gerald Schaefer Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dcssblk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 5e083d1f57e..15a5789b773 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -472,11 +472,11 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char if (rc) goto unregister_dev; - add_disk(dev_info->gd); - blk_queue_make_request(dev_info->dcssblk_queue, dcssblk_make_request); blk_queue_hardsect_size(dev_info->dcssblk_queue, 4096); + add_disk(dev_info->gd); + switch (dev_info->segment_type) { case SEG_TYPE_SR: case SEG_TYPE_ER: -- cgit v1.2.3 From 799b37b5ee6b4c197f38611eb7f02552e4f14e70 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 4 Dec 2007 11:32:38 +0100 Subject: drivers/s390/net/ctcmain.c: fix build bug SET_MODULE_OWNER() is obsolete. Signed-off-by: Ingo Molnar Signed-off-by: Linus Torvalds --- drivers/s390/net/ctcmain.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c index b3b6f654365..97adc701a81 100644 --- a/drivers/s390/net/ctcmain.c +++ b/drivers/s390/net/ctcmain.c @@ -2802,7 +2802,6 @@ void ctc_init_netdevice(struct net_device * dev) dev->type = ARPHRD_SLIP; dev->tx_queue_len = 100; dev->flags = IFF_POINTOPOINT | IFF_NOARP; - SET_MODULE_OWNER(dev); } -- cgit v1.2.3 From 3f3debdbfb7713aa06c4370bab6bef277dfd7a37 Mon Sep 17 00:00:00 2001 From: Robert Hancock Date: Sun, 25 Nov 2007 16:59:36 -0600 Subject: sata_nv: don't use legacy DMA in ADMA mode (v3) We need to run any DMA command with result taskfile requested in ADMA mode when the port is in ADMA mode, otherwise it may try to use the legacy DMA engine in ADMA mode which is not allowed. Enforce this with BUG_ON() since data corruption could potentially result if this happened. Also, fail any attempt to try and issue NCQ commands with result taskfile requested, since the hardware doesn't allow this. Signed-off-by: Robert Hancock Signed-off-by: Jeff Garzik --- drivers/ata/sata_nv.c | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 44f9e5d9e36..ed5dc7cb50c 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -791,11 +791,13 @@ static int nv_adma_check_atapi_dma(struct ata_queued_cmd *qc) static void nv_adma_tf_read(struct ata_port *ap, struct ata_taskfile *tf) { - /* Since commands where a result TF is requested are not - executed in ADMA mode, the only time this function will be called - in ADMA mode will be if a command fails. In this case we - don't care about going into register mode with ADMA commands - pending, as the commands will all shortly be aborted anyway. */ + /* Other than when internal or pass-through commands are executed, + the only time this function will be called in ADMA mode will be + if a command fails. In the failure case we don't care about going + into register mode with ADMA commands pending, as the commands will + all shortly be aborted anyway. We assume that NCQ commands are not + issued via passthrough, which is the only way that switching into + ADMA mode could abort outstanding commands. */ nv_adma_register_mode(ap); ata_tf_read(ap, tf); @@ -1359,11 +1361,9 @@ static int nv_adma_use_reg_mode(struct ata_queued_cmd *qc) struct nv_adma_port_priv *pp = qc->ap->private_data; /* ADMA engine can only be used for non-ATAPI DMA commands, - or interrupt-driven no-data commands, where a result taskfile - is not required. */ + or interrupt-driven no-data commands. */ if ((pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE) || - (qc->tf.flags & ATA_TFLAG_POLLING) || - (qc->flags & ATA_QCFLAG_RESULT_TF)) + (qc->tf.flags & ATA_TFLAG_POLLING)) return 1; if ((qc->flags & ATA_QCFLAG_DMAMAP) || @@ -1381,6 +1381,8 @@ static void nv_adma_qc_prep(struct ata_queued_cmd *qc) NV_CPB_CTL_IEN; if (nv_adma_use_reg_mode(qc)) { + BUG_ON(!(pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE) && + (qc->flags & ATA_QCFLAG_DMAMAP)); nv_adma_register_mode(qc->ap); ata_qc_prep(qc); return; @@ -1425,9 +1427,21 @@ static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc) VPRINTK("ENTER\n"); + /* We can't handle result taskfile with NCQ commands, since + retrieving the taskfile switches us out of ADMA mode and would abort + existing commands. */ + if (unlikely(qc->tf.protocol == ATA_PROT_NCQ && + (qc->flags & ATA_QCFLAG_RESULT_TF))) { + ata_dev_printk(qc->dev, KERN_ERR, + "NCQ w/ RESULT_TF not allowed\n"); + return AC_ERR_SYSTEM; + } + if (nv_adma_use_reg_mode(qc)) { /* use ATA register mode */ VPRINTK("using ATA register mode: 0x%lx\n", qc->flags); + BUG_ON(!(pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE) && + (qc->flags & ATA_QCFLAG_DMAMAP)); nv_adma_register_mode(qc->ap); return ata_qc_issue_prot(qc); } else -- cgit v1.2.3 From 306b30f74d37f289033c696285e07ce0158a5d7b Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Tue, 4 Dec 2007 14:07:52 -0500 Subject: sata_mv: Warn about HPT RocketRAID BIOS treatment of "Legacy" drives The Highpoint RocketRAID boards using Marvell 7042 chips overwrite the 9th sector of attached drives at boot time, when those drives are configured as "Legacy" (the default) in the HighPoint BIOS. This kills GRUB, and probably other stuff. But it all happens *before* Linux is even loaded. So, for now we'll log a WARNING when such boards are detected, and advise users to configure BIOS "JBOD" volumes instead, which don't appear to suffer from this problem. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 8d864e5e97e..fe0105d35ba 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -2503,6 +2503,15 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx) case chip_7042: hp_flags |= MV_HP_PCIE; + if (pdev->vendor == PCI_VENDOR_ID_TTI && + (pdev->device == 0x2300 || pdev->device == 0x2310)) + { + printk(KERN_WARNING "sata_mv: Highpoint RocketRAID BIOS" + " will CORRUPT DATA on attached drives when" + " configured as \"Legacy\". BEWARE!\n"); + printk(KERN_WARNING "sata_mv: Use BIOS \"JBOD\" volumes" + " instead for safety.\n"); + } case chip_6042: hpriv->ops = &mv6xxx_ops; hp_flags |= MV_HP_GEN_IIE; -- cgit v1.2.3 From 6ba8695870a5a2ebf6f3d1ee3ac1e4d96d667cf6 Mon Sep 17 00:00:00 2001 From: peerchen Date: Mon, 3 Dec 2007 22:20:37 +0800 Subject: ahci: add the Device IDs of MCP79 AHCI controller to ahci.c Add the device IDs of legacy mode of MCP79 AHCI controller to ahci.c Signed-off-by: Peer Chen Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index ed9b407e42d..4688dbf2d11 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -536,6 +536,10 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci }, /* MCP77 */ + { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci }, /* MCP79 */ + { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci }, /* MCP79 */ + { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci }, /* MCP79 */ + { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci }, /* MCP79 */ -- cgit v1.2.3 From 943547abdfe9b4e27e36a25987909619908dffbf Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sun, 2 Dec 2007 03:47:01 +0100 Subject: pata_amd/pata_via: de-couple programming of PIO/MWDMA and UDMA timings * Don't program UDMA timings when programming PIO or MWDMA modes. This has also a nice side-effect of fixing regression added by commit 681c80b5d96076f447e8101ac4325c82d8dce508 ("libata: correct handling of SRST reset sequences") (->set_piomode method for PIO0 is called before ->cable_detect method which checks UDMA timings to get the cable type). * Bump driver version. Signed-off-by: Bartlomiej Zolnierkiewicz Tested-by: "Thomas Lindroth" Acked-by: Alan Cox Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Jeff Garzik --- drivers/ata/pata_amd.c | 5 +++-- drivers/ata/pata_via.c | 4 ++-- 2 files changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c index c5779ad4abc..3cc27b51465 100644 --- a/drivers/ata/pata_amd.c +++ b/drivers/ata/pata_amd.c @@ -25,7 +25,7 @@ #include #define DRV_NAME "pata_amd" -#define DRV_VERSION "0.3.9" +#define DRV_VERSION "0.3.10" /** * timing_setup - shared timing computation and load @@ -115,7 +115,8 @@ static void timing_setup(struct ata_port *ap, struct ata_device *adev, int offse } /* UDMA timing */ - pci_write_config_byte(pdev, offset + 0x10 + (3 - dn), t); + if (at.udma) + pci_write_config_byte(pdev, offset + 0x10 + (3 - dn), t); } /** diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c index a4175fbdd17..453d72bf259 100644 --- a/drivers/ata/pata_via.c +++ b/drivers/ata/pata_via.c @@ -63,7 +63,7 @@ #include #define DRV_NAME "pata_via" -#define DRV_VERSION "0.3.2" +#define DRV_VERSION "0.3.3" /* * The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx @@ -296,7 +296,7 @@ static void via_do_set_mode(struct ata_port *ap, struct ata_device *adev, int mo } /* Set UDMA unless device is not UDMA capable */ - if (udma_type) { + if (udma_type && t.udma) { u8 cable80_status; /* Get 80-wire cable detection bit */ -- cgit v1.2.3 From 4c14fe91d0209897fda4dea0102c8cd2e1ddd860 Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Sat, 1 Dec 2007 15:57:17 -0800 Subject: cxgb - revert file mode changes. revert inavertant file mode changes Signed-off-by: Divy Le Ray Signed-off-by: Jeff Garzik --- drivers/net/chelsio/cxgb2.c | 0 drivers/net/chelsio/pm3393.c | 0 drivers/net/chelsio/sge.c | 0 drivers/net/chelsio/sge.h | 0 4 files changed, 0 insertions(+), 0 deletions(-) mode change 100755 => 100644 drivers/net/chelsio/cxgb2.c mode change 100755 => 100644 drivers/net/chelsio/pm3393.c mode change 100755 => 100644 drivers/net/chelsio/sge.c mode change 100755 => 100644 drivers/net/chelsio/sge.h (limited to 'drivers') diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c old mode 100755 new mode 100644 diff --git a/drivers/net/chelsio/pm3393.c b/drivers/net/chelsio/pm3393.c old mode 100755 new mode 100644 diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c old mode 100755 new mode 100644 diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h old mode 100755 new mode 100644 -- cgit v1.2.3 From 0581d3f53053de597ef4956568c15785e59828ef Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 3 Dec 2007 04:34:32 +0000 Subject: Don't claim to do IPv6 checksum offload Signed-off-by: David Woodhouse Signed-off-by: Jeff Garzik --- drivers/net/pasemi_mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c index 09b4fde8d92..a8db5d7105f 100644 --- a/drivers/net/pasemi_mac.c +++ b/drivers/net/pasemi_mac.c @@ -1362,7 +1362,7 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netif_napi_add(dev, &mac->napi, pasemi_mac_poll, 64); - dev->features = NETIF_F_HW_CSUM | NETIF_F_LLTX | NETIF_F_SG; + dev->features = NETIF_F_IP_CSUM | NETIF_F_LLTX | NETIF_F_SG; /* These should come out of the device tree eventually */ mac->dma_txch = index; -- cgit v1.2.3 From 4c537e6371a9510c82eb96fb7e1e66017e0e2053 Mon Sep 17 00:00:00 2001 From: Jon Smirl Date: Mon, 3 Dec 2007 22:38:10 +0000 Subject: Fix memory corruption in fec_mpc52xx The mpc5200 fec driver is corrupting memory. This patch fixes two bugs where the wrong skb was being referenced. Signed-off-by: Jon Smirl Acked-by: Domen Puncer Signed-off-by: Grant Likely Signed-off-by: David Woodhouse Signed-off-by: Jeff Garzik --- drivers/net/fec_mpc52xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c index bf5a7caa5b5..79f7eade477 100644 --- a/drivers/net/fec_mpc52xx.c +++ b/drivers/net/fec_mpc52xx.c @@ -422,7 +422,7 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void *dev_id) rskb = bcom_retrieve_buffer(priv->rx_dmatsk, &status, (struct bcom_bd **)&bd); - dma_unmap_single(&dev->dev, bd->skb_pa, skb->len, DMA_FROM_DEVICE); + dma_unmap_single(&dev->dev, bd->skb_pa, rskb->len, DMA_FROM_DEVICE); /* Test for errors in received frame */ if (status & BCOM_FEC_RX_BD_ERRORS) { @@ -467,7 +467,7 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void *dev_id) bcom_prepare_next_buffer(priv->rx_dmatsk); bd->status = FEC_RX_BUFFER_SIZE; - bd->skb_pa = dma_map_single(&dev->dev, rskb->data, + bd->skb_pa = dma_map_single(&dev->dev, skb->data, FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE); bcom_submit_next_buffer(priv->rx_dmatsk, skb); -- cgit v1.2.3 From 8cfcbe998aa0459e20bbad61376f81c1715b25d6 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 3 Dec 2007 17:02:17 -0800 Subject: sky2: recovery deadlock fix Prevent deadlock in sky2 recovery logic. sky2_down calls napi_synchronize which gets stuck if napi was already disabled. Fix by rearranging slightly and not calling napi_disable until after both ports are stopped. The napi_disable probably is being overly paranoid, but it is safe now. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 3d1dfc94840..6197afb3ed8 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -2906,16 +2906,14 @@ static void sky2_restart(struct work_struct *work) int i, err; rtnl_lock(); - sky2_write32(hw, B0_IMSK, 0); - sky2_read32(hw, B0_IMSK); - napi_disable(&hw->napi); - for (i = 0; i < hw->ports; i++) { dev = hw->dev[i]; if (netif_running(dev)) sky2_down(dev); } + napi_disable(&hw->napi); + sky2_write32(hw, B0_IMSK, 0); sky2_reset(hw); sky2_write32(hw, B0_IMSK, Y2_IS_BASE); napi_enable(&hw->napi); -- cgit v1.2.3 From d30f53aeb31d453a5230f526bea592af07944564 Mon Sep 17 00:00:00 2001 From: Wang Chen Date: Tue, 4 Dec 2007 10:01:37 +0800 Subject: SMC911X: Fix using of dereferenced skb after netif_rx Signed-off-by: Wang Chen Signed-off-by: Jeff Garzik --- drivers/net/smc911x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index 1a3d80bfe9e..76cc1d3adf7 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -1299,9 +1299,9 @@ smc911x_rx_dma_irq(int dma, void *data) PRINT_PKT(skb->data, skb->len); dev->last_rx = jiffies; skb->protocol = eth_type_trans(skb, dev); - netif_rx(skb); dev->stats.rx_packets++; dev->stats.rx_bytes += skb->len; + netif_rx(skb); spin_lock_irqsave(&lp->lock, flags); pkts = (SMC_GET_RX_FIFO_INF() & RX_FIFO_INF_RXSUSED_) >> 16; -- cgit v1.2.3 From 4352d82647f679fb8dd9440b34400fa49beedb2c Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Mon, 3 Dec 2007 21:34:14 -0600 Subject: pasemi_mac: Fix reuse of free'd skb Turns out we're freeing the skb when we detect CRC error, but we're not clearing out info->skb. We could either clear it and have the stack reallocate it, or just leave it and the rx ring refill code will reuse the one that was allocated. Reusing a freed skb obviously caused some nasty crashes of various kind, as reported by Brent Baude and David Woodhouse. Signed-off-by: Olof Johansson Signed-off-by: Jeff Garzik --- drivers/net/pasemi_mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c index a8db5d7105f..816a59e801b 100644 --- a/drivers/net/pasemi_mac.c +++ b/drivers/net/pasemi_mac.c @@ -586,7 +586,7 @@ static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit) /* CRC error flagged */ mac->netdev->stats.rx_errors++; mac->netdev->stats.rx_crc_errors++; - dev_kfree_skb_irq(skb); + /* No need to free skb, it'll be reused */ goto next; } -- cgit v1.2.3 From f9663aea2a938f9dc60dbfef34b9e7847a69c947 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Sat, 1 Dec 2007 22:10:03 -0700 Subject: gianfar: fix compile warning Eliminate an uninitialized variable warning. The code is correct, but a pointer to the automatic variable 'addr' is passed to dma_alloc_coherent. Since addr has never been initialized, and the compiler doesn't know what dma_alloc_coherent will do with it, it complains. Signed-off-by: Grant Likely Signed-off-by: Jeff Garzik --- drivers/net/gianfar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 38268d7335a..0431e9ed0fa 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -696,7 +696,7 @@ int startup_gfar(struct net_device *dev) { struct txbd8 *txbdp; struct rxbd8 *rxbdp; - dma_addr_t addr; + dma_addr_t addr = 0; unsigned long vaddr; int i; struct gfar_private *priv = netdev_priv(dev); -- cgit v1.2.3 From 6f4a7f4183bdbd02741dcd8edbd10b8628acc5d5 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 4 Dec 2007 16:17:33 +0300 Subject: PHY: Add the phy_device_release device method. Lately I've got this nice badness on mdio bus removal: Device 'e0103120:06' does not have a release() function, it is broken and must be fixed. ------------[ cut here ]------------ Badness at drivers/base/core.c:107 NIP: c015c1a8 LR: c015c1a8 CTR: c0157488 REGS: c34bdcf0 TRAP: 0700 Not tainted (2.6.23-rc5-g9ebadfbb-dirty) MSR: 00029032 CR: 24088422 XER: 00000000 ... [c34bdda0] [c015c1a8] device_release+0x78/0x80 (unreliable) [c34bddb0] [c01354cc] kobject_cleanup+0x80/0xbc [c34bddd0] [c01365f0] kref_put+0x54/0x6c [c34bdde0] [c013543c] kobject_put+0x24/0x34 [c34bddf0] [c015c384] put_device+0x1c/0x2c [c34bde00] [c0180e84] mdiobus_unregister+0x2c/0x58 ... Though actually there is nothing broken, it just device subsystem core expects another "pattern" of resource managment. This patch implement phy device's release function, thus we're getting rid of this badness. Also small hidden bug fixed, hope none other introduced. ;-) Signed-off-by: Anton Vorontsov Acked-by: Andy Fleming Signed-off-by: Jeff Garzik --- drivers/net/phy/mdio_bus.c | 9 +++++---- drivers/net/phy/phy_device.c | 12 ++++++++++++ 2 files changed, 17 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index fc2f0e695a1..c30196d0ad1 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -91,9 +91,12 @@ int mdiobus_register(struct mii_bus *bus) err = device_register(&phydev->dev); - if (err) + if (err) { printk(KERN_ERR "phy %d failed to register\n", i); + phy_device_free(phydev); + phydev = NULL; + } } bus->phy_map[i] = phydev; @@ -110,10 +113,8 @@ void mdiobus_unregister(struct mii_bus *bus) int i; for (i = 0; i < PHY_MAX_ADDR; i++) { - if (bus->phy_map[i]) { + if (bus->phy_map[i]) device_unregister(&bus->phy_map[i]->dev); - kfree(bus->phy_map[i]); - } } } EXPORT_SYMBOL(mdiobus_unregister); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index f6e484812a9..5b9e1751e1b 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -44,6 +44,16 @@ static struct phy_driver genphy_driver; extern int mdio_bus_init(void); extern void mdio_bus_exit(void); +void phy_device_free(struct phy_device *phydev) +{ + kfree(phydev); +} + +static void phy_device_release(struct device *dev) +{ + phy_device_free(to_phy_device(dev)); +} + struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id) { struct phy_device *dev; @@ -54,6 +64,8 @@ struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id) if (NULL == dev) return (struct phy_device*) PTR_ERR((void*)-ENOMEM); + dev->dev.release = phy_device_release; + dev->speed = 0; dev->duplex = -1; dev->pause = dev->asym_pause = 0; -- cgit v1.2.3 From 621544eb8c3beaa859c75850f816dd9b056a00a3 Mon Sep 17 00:00:00 2001 From: Andrew Gallatin Date: Wed, 5 Dec 2007 02:31:42 -0800 Subject: [LRO]: fix lro_gen_skb() alignment Add a field to the lro_mgr struct so that drivers can specify how much padding is required to align layer 3 headers when a packet is copied into a freshly allocated skb by inet_lro.c:lro_gen_skb(). Without padding, skbs generated by LRO will cause alignment warnings on architectures which require strict alignment (seen on sparc64). Myri10GE is updated to use this field. Signed-off-by: Andrew Gallatin Signed-off-by: David S. Miller --- drivers/net/myri10ge/myri10ge.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c index 0f306ddb563..8def8657251 100644 --- a/drivers/net/myri10ge/myri10ge.c +++ b/drivers/net/myri10ge/myri10ge.c @@ -1979,6 +1979,7 @@ static int myri10ge_open(struct net_device *dev) lro_mgr->lro_arr = mgp->rx_done.lro_desc; lro_mgr->get_frag_header = myri10ge_get_frag_header; lro_mgr->max_aggr = myri10ge_lro_max_pkts; + lro_mgr->frag_align_pad = 2; if (lro_mgr->max_aggr > MAX_SKB_FRAGS) lro_mgr->max_aggr = MAX_SKB_FRAGS; -- cgit v1.2.3 From 372a302e9a892229206aafca0352584a745bc5f3 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 4 Dec 2007 23:45:05 -0800 Subject: RTC: assure proper memory ordering with respect to RTC_DEV_BUSY flag We must make sure that the RTC_DEV_BUSY flag has proper lock semantics, i.e. that the RTC_DEV_BUSY stores clearing the flag don't get reordered before the preceeding stores and loads and vice versa. Spotted by Nick Piggin. Signed-off-by: Jiri Kosina Cc: Nick Piggin Cc: David Brownell Acked-by: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/interface.c | 4 ++-- drivers/rtc/rtc-dev.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index a4f56e95cf9..f1e00ff54ce 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -293,7 +293,7 @@ int rtc_irq_register(struct rtc_device *rtc, struct rtc_task *task) return -EINVAL; /* Cannot register while the char dev is in use */ - if (test_and_set_bit(RTC_DEV_BUSY, &rtc->flags)) + if (test_and_set_bit_lock(RTC_DEV_BUSY, &rtc->flags)) return -EBUSY; spin_lock_irq(&rtc->irq_task_lock); @@ -303,7 +303,7 @@ int rtc_irq_register(struct rtc_device *rtc, struct rtc_task *task) } spin_unlock_irq(&rtc->irq_task_lock); - clear_bit(RTC_DEV_BUSY, &rtc->flags); + clear_bit_unlock(RTC_DEV_BUSY, &rtc->flags); return retval; } diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c index ae1bf177d62..025c60a17a4 100644 --- a/drivers/rtc/rtc-dev.c +++ b/drivers/rtc/rtc-dev.c @@ -26,7 +26,7 @@ static int rtc_dev_open(struct inode *inode, struct file *file) struct rtc_device, char_dev); const struct rtc_class_ops *ops = rtc->ops; - if (test_and_set_bit(RTC_DEV_BUSY, &rtc->flags)) + if (test_and_set_bit_lock(RTC_DEV_BUSY, &rtc->flags)) return -EBUSY; file->private_data = rtc; @@ -41,7 +41,7 @@ static int rtc_dev_open(struct inode *inode, struct file *file) } /* something has gone wrong */ - clear_bit(RTC_DEV_BUSY, &rtc->flags); + clear_bit_unlock(RTC_DEV_BUSY, &rtc->flags); return err; } @@ -402,7 +402,7 @@ static int rtc_dev_release(struct inode *inode, struct file *file) if (rtc->ops->release) rtc->ops->release(rtc->dev.parent); - clear_bit(RTC_DEV_BUSY, &rtc->flags); + clear_bit_unlock(RTC_DEV_BUSY, &rtc->flags); return 0; } -- cgit v1.2.3 From 068f4070868c801c7d7aa1ae1193c1c854193545 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 4 Dec 2007 23:45:09 -0800 Subject: SPI: use mutex not semaphore Make spi_write_then_read() use a mutex not a binary semaphore. Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index b31f4431849..6ca07c9929e 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -589,7 +589,7 @@ int spi_write_then_read(struct spi_device *spi, const u8 *txbuf, unsigned n_tx, u8 *rxbuf, unsigned n_rx) { - static DECLARE_MUTEX(lock); + static DEFINE_MUTEX(lock); int status; struct spi_message message; @@ -615,7 +615,7 @@ int spi_write_then_read(struct spi_device *spi, } /* ... unless someone else is using the pre-allocated buffer */ - if (down_trylock(&lock)) { + if (!mutex_trylock(&lock)) { local_buf = kmalloc(SPI_BUFSIZ, GFP_KERNEL); if (!local_buf) return -ENOMEM; @@ -634,7 +634,7 @@ int spi_write_then_read(struct spi_device *spi, } if (x[0].tx_buf == buf) - up(&lock); + mutex_unlock(&lock); else kfree(local_buf); -- cgit v1.2.3 From 3f86f14c0fc9fdb0984e64209df2f47895a07151 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 4 Dec 2007 23:45:10 -0800 Subject: spi: at25 driver is for EEPROM not FLASH Add comment to at25 driver that it's for EEPROM chips, not FLASH chips ... the AT25 series has both types of chip, and sometimes they're even pin-compatible. The command sets are different, as is the treatment of erasure. (FLASH needs explicit erasure, but with EEPROM it's implicit.) Note that all vendors seem to have this same confusion in their *25* series SPI memory parts. Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/at25.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/spi/at25.c b/drivers/spi/at25.c index e007833cca5..290dbe99647 100644 --- a/drivers/spi/at25.c +++ b/drivers/spi/at25.c @@ -21,6 +21,13 @@ #include +/* + * NOTE: this is an *EEPROM* driver. The vagaries of product naming + * mean that some AT25 products are EEPROMs, and others are FLASH. + * Handle FLASH chips with the drivers/mtd/devices/m25p80.c driver, + * not this one! + */ + struct at25_data { struct spi_device *spi; struct mutex lock; -- cgit v1.2.3 From 9b938b749065d6a94172ac24d9748bd66a03da4c Mon Sep 17 00:00:00 2001 From: Marc Pignat Date: Tue, 4 Dec 2007 23:45:10 -0800 Subject: spi: simplify spi_sync() calling convention Simplify spi_sync calling convention, eliminating the need to check both the return value AND the message->status. In consequence, this corrects misbehaviours of spi_read and spi_write (which only checked the former) and their callers. Signed-off-by: Marc Pignat Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 6ca07c9929e..93e9de46977 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -541,10 +541,7 @@ static void spi_complete(void *arg) * Also, the caller is guaranteeing that the memory associated with the * message will not be freed before this call returns. * - * The return value is a negative error code if the message could not be - * submitted, else zero. When the value is zero, then message->status is - * also defined; it's the completion code for the transfer, either zero - * or a negative error code from the controller driver. + * It returns zero on success, else a negative error code. */ int spi_sync(struct spi_device *spi, struct spi_message *message) { @@ -554,8 +551,10 @@ int spi_sync(struct spi_device *spi, struct spi_message *message) message->complete = spi_complete; message->context = &done; status = spi_async(spi, message); - if (status == 0) + if (status == 0) { wait_for_completion(&done); + status = message->status; + } message->context = NULL; return status; } @@ -628,10 +627,8 @@ int spi_write_then_read(struct spi_device *spi, /* do the i/o */ status = spi_sync(spi, &message); - if (status == 0) { + if (status == 0) memcpy(rxbuf, x[1].rx_buf, n_rx); - status = message.status; - } if (x[0].tx_buf == buf) mutex_unlock(&lock); -- cgit v1.2.3 From c24b2602af88db4489c6c3fb4b2a8e47fb15769b Mon Sep 17 00:00:00 2001 From: Marc Pignat Date: Tue, 4 Dec 2007 23:45:11 -0800 Subject: spi: use simplified spi_sync() calling convention Given the patch which simplifies the spi_sync calling convention, this one updates the callers of that routine which tried using it according to the previous specification. (Most didn't.) Signed-off-by: Marc Pignat Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/input/touchscreen/ads7846.c | 13 ++++++------- drivers/mmc/host/mmc_spi.c | 10 ---------- drivers/rtc/rtc-max6902.c | 12 +++--------- 3 files changed, 9 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index f59aecf5ec1..fd9c5d51870 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -267,13 +267,12 @@ static int ads7846_read12_ser(struct device *dev, unsigned command) ts->irq_disabled = 0; enable_irq(spi->irq); - if (req->msg.status) - status = req->msg.status; - - /* on-wire is a must-ignore bit, a BE12 value, then padding */ - sample = be16_to_cpu(req->sample); - sample = sample >> 3; - sample &= 0x0fff; + if (status == 0) { + /* on-wire is a must-ignore bit, a BE12 value, then padding */ + sample = be16_to_cpu(req->sample); + sample = sample >> 3; + sample &= 0x0fff; + } kfree(req); return status ? status : sample; diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index a6469218f19..365024b83d3 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -176,8 +176,6 @@ mmc_spi_readbytes(struct mmc_spi_host *host, unsigned len) DMA_FROM_DEVICE); status = spi_sync(host->spi, &host->readback); - if (status == 0) - status = host->readback.status; if (host->dma_dev) dma_sync_single_for_cpu(host->dma_dev, @@ -480,8 +478,6 @@ mmc_spi_command_send(struct mmc_spi_host *host, DMA_BIDIRECTIONAL); } status = spi_sync(host->spi, &host->m); - if (status == 0) - status = host->m.status; if (host->dma_dev) dma_sync_single_for_cpu(host->dma_dev, @@ -624,8 +620,6 @@ mmc_spi_writeblock(struct mmc_spi_host *host, struct spi_transfer *t) DMA_BIDIRECTIONAL); status = spi_sync(spi, &host->m); - if (status == 0) - status = host->m.status; if (status != 0) { dev_dbg(&spi->dev, "write error (%d)\n", status); @@ -726,8 +720,6 @@ mmc_spi_readblock(struct mmc_spi_host *host, struct spi_transfer *t) } status = spi_sync(spi, &host->m); - if (status == 0) - status = host->m.status; if (host->dma_dev) { dma_sync_single_for_cpu(host->dma_dev, @@ -905,8 +897,6 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd, DMA_BIDIRECTIONAL); tmp = spi_sync(spi, &host->m); - if (tmp == 0) - tmp = host->m.status; if (host->dma_dev) dma_sync_single_for_cpu(host->dma_dev, diff --git a/drivers/rtc/rtc-max6902.c b/drivers/rtc/rtc-max6902.c index 3e183cfee10..1f956dc5d56 100644 --- a/drivers/rtc/rtc-max6902.c +++ b/drivers/rtc/rtc-max6902.c @@ -89,13 +89,9 @@ static int max6902_get_reg(struct device *dev, unsigned char address, /* do the i/o */ status = spi_sync(spi, &message); - if (status == 0) - status = message.status; - else - return status; - - *data = chip->rx_buf[1]; + if (status == 0) + *data = chip->rx_buf[1]; return status; } @@ -125,9 +121,7 @@ static int max6902_get_datetime(struct device *dev, struct rtc_time *dt) /* do the i/o */ status = spi_sync(spi, &message); - if (status == 0) - status = message.status; - else + if (status) return status; /* The chip sends data in this order: -- cgit v1.2.3 From 131b17d42de6194fa960132c1f62c29923c4f20c Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:12 -0800 Subject: spi: initial BF54x SPI support Initial BF54x SPI support - support BF54x SPI0 - clean up some code (whitespace etc) - will support multiports in the future - start using portmux calls Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 139 +++++++++++++++++++++++----------------------- 1 file changed, 69 insertions(+), 70 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 2ef11bb70b2..805f03bb5ef 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -1,17 +1,20 @@ /* - * File: drivers/spi/bfin5xx_spi.c - * Based on: N/A - * Author: Luke Yang (Analog Devices Inc.) + * File: drivers/spi/bfin5xx_spi.c + * Maintainer: + * Bryan Wu + * Original Author: + * Luke Yang (Analog Devices Inc.) * - * Created: March. 10th 2006 - * Description: SPI controller driver for Blackfin 5xx - * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * Created: March. 10th 2006 + * Description: SPI controller driver for Blackfin BF5xx + * Bugs: Enter bugs at http://blackfin.uclinux.org/ * * Modified: * March 10, 2006 bfin5xx_spi.c Created. (Luke Yang) * August 7, 2006 added full duplex mode (Axel Weiss & Luke Yang) + * July 17, 2007 add support for BF54x SPI0 controller (Bryan Wu) * - * Copyright 2004-2006 Analog Devices Inc. + * Copyright 2004-2007 Analog Devices Inc. * * This program is free software ; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -31,27 +34,27 @@ #include #include +#include #include +#include #include +#include #include #include #include #include #include #include -#include -#include -#include -#include #include - +#include #include -MODULE_AUTHOR("Luke Yang"); -MODULE_DESCRIPTION("Blackfin 5xx SPI Contoller"); +MODULE_AUTHOR("Bryan Wu, Luke Yang"); +MODULE_DESCRIPTION("Blackfin BF5xx SPI Contoller Driver"); MODULE_LICENSE("GPL"); +#define DRV_NAME "bfin-spi-master" #define IS_DMA_ALIGNED(x) (((u32)(x)&0x07)==0) #define DEFINE_SPI_REG(reg, off) \ @@ -124,6 +127,7 @@ struct chip_data { u16 flag; u8 chip_select_num; + u8 chip_select_requested; u8 n_bytes; u8 width; /* 0 or 1 */ u8 enable_dma; @@ -188,53 +192,37 @@ static void restore_state(struct driver_data *drv_data) bfin_spi_disable(drv_data); dev_dbg(&drv_data->pdev->dev, "restoring spi ctl state\n"); -#if defined(CONFIG_BF534) || defined(CONFIG_BF536) || defined(CONFIG_BF537) - dev_dbg(&drv_data->pdev->dev, - "chip select number is %d\n", chip->chip_select_num); - - switch (chip->chip_select_num) { - case 1: - bfin_write_PORTF_FER(bfin_read_PORTF_FER() | 0x3c00); - SSYNC(); - break; + if (!chip->chip_select_requested) { - case 2: - case 3: - bfin_write_PORT_MUX(bfin_read_PORT_MUX() | PJSE_SPI); - SSYNC(); - bfin_write_PORTF_FER(bfin_read_PORTF_FER() | 0x3800); - SSYNC(); - break; - - case 4: - bfin_write_PORT_MUX(bfin_read_PORT_MUX() | PFS4E_SPI); - SSYNC(); - bfin_write_PORTF_FER(bfin_read_PORTF_FER() | 0x3840); - SSYNC(); - break; - - case 5: - bfin_write_PORT_MUX(bfin_read_PORT_MUX() | PFS5E_SPI); - SSYNC(); - bfin_write_PORTF_FER(bfin_read_PORTF_FER() | 0x3820); - SSYNC(); - break; + dev_dbg(&drv_data->pdev->dev, + "chip select number is %d\n", chip->chip_select_num); - case 6: - bfin_write_PORT_MUX(bfin_read_PORT_MUX() | PFS6E_SPI); - SSYNC(); - bfin_write_PORTF_FER(bfin_read_PORTF_FER() | 0x3810); - SSYNC(); - break; + switch (chip->chip_select_num) { + case 1: + peripheral_request(P_SPI0_SSEL1, DRV_NAME); + break; + case 2: + peripheral_request(P_SPI0_SSEL2, DRV_NAME); + break; + case 3: + peripheral_request(P_SPI0_SSEL3, DRV_NAME); + break; + case 4: + peripheral_request(P_SPI0_SSEL4, DRV_NAME); + break; + case 5: + peripheral_request(P_SPI0_SSEL5, DRV_NAME); + break; + case 6: + peripheral_request(P_SPI0_SSEL6, DRV_NAME); + break; + case 7: + peripheral_request(P_SPI0_SSEL7, DRV_NAME); + break; + } - case 7: - bfin_write_PORT_MUX(bfin_read_PORT_MUX() | PJCE_SPI); - SSYNC(); - bfin_write_PORTF_FER(bfin_read_PORTF_FER() | 0x3800); - SSYNC(); - break; + chip->chip_select_requested = 1; } -#endif /* Load the registers */ write_CTRL(chip->ctl_reg); @@ -277,7 +265,7 @@ static void null_reader(struct driver_data *drv_data) static void u8_writer(struct driver_data *drv_data) { - dev_dbg(&drv_data->pdev->dev, + dev_dbg(&drv_data->pdev->dev, "cr8-s is 0x%x\n", read_STAT()); while (drv_data->tx < drv_data->tx_end) { write_TDBR(*(u8 *) (drv_data->tx)); @@ -316,7 +304,7 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) static void u8_reader(struct driver_data *drv_data) { - dev_dbg(&drv_data->pdev->dev, + dev_dbg(&drv_data->pdev->dev, "cr-8 is 0x%x\n", read_STAT()); /* clear TDBR buffer before read(else it will be shifted out) */ @@ -403,7 +391,7 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) static void u16_writer(struct driver_data *drv_data) { - dev_dbg(&drv_data->pdev->dev, + dev_dbg(&drv_data->pdev->dev, "cr16 is 0x%x\n", read_STAT()); while (drv_data->tx < drv_data->tx_end) { @@ -700,9 +688,9 @@ static void pump_transfers(unsigned long data) drv_data->write = drv_data->tx ? chip->write : null_writer; drv_data->read = drv_data->rx ? chip->read : null_reader; drv_data->duplex = chip->duplex ? chip->duplex : null_writer; - dev_dbg(&drv_data->pdev->dev, - "transfer: drv_data->write is %p, chip->write is %p, null_wr is %p\n", - drv_data->write, chip->write, null_writer); + dev_dbg(&drv_data->pdev->dev, "transfer: ", + "drv_data->write is %p, chip->write is %p, null_wr is %p\n", + drv_data->write, chip->write, null_writer); /* speed and width has been set on per message */ message->state = RUNNING_STATE; @@ -816,7 +804,7 @@ static void pump_transfers(unsigned long data) /* full duplex mode */ BUG_ON((drv_data->tx_end - drv_data->tx) != (drv_data->rx_end - drv_data->rx)); - cr = (read_CTRL() & (~BIT_CTL_TIMOD)); + cr = (read_CTRL() & (~BIT_CTL_TIMOD)); cr |= CFG_SPI_WRITE | (width << 8) | (CFG_SPI_ENABLE << 14); dev_dbg(&drv_data->pdev->dev, @@ -834,7 +822,7 @@ static void pump_transfers(unsigned long data) cr = (read_CTRL() & (~BIT_CTL_TIMOD)); cr |= CFG_SPI_WRITE | (width << 8) | (CFG_SPI_ENABLE << 14); - dev_dbg(&drv_data->pdev->dev, + dev_dbg(&drv_data->pdev->dev, "IO write: cr is 0x%x\n", cr); write_CTRL(cr); @@ -849,7 +837,7 @@ static void pump_transfers(unsigned long data) cr = (read_CTRL() & (~BIT_CTL_TIMOD)); cr |= CFG_SPI_READ | (width << 8) | (CFG_SPI_ENABLE << 14); - dev_dbg(&drv_data->pdev->dev, + dev_dbg(&drv_data->pdev->dev, "IO read: cr is 0x%x\n", cr); write_CTRL(cr); @@ -861,7 +849,7 @@ static void pump_transfers(unsigned long data) } if (!tranf_success) { - dev_dbg(&drv_data->pdev->dev, + dev_dbg(&drv_data->pdev->dev, "IO write error!\n"); message->state = ERROR_STATE; } else { @@ -881,9 +869,11 @@ static void pump_transfers(unsigned long data) /* pop a msg from queue and kick off real transfer */ static void pump_messages(struct work_struct *work) { - struct driver_data *drv_data = container_of(work, struct driver_data, pump_messages); + struct driver_data *drv_data; unsigned long flags; + drv_data = container_of(work, struct driver_data, pump_messages); + /* Lock queue and check for queue work */ spin_lock_irqsave(&drv_data->lock, flags); if (list_empty(&drv_data->queue) || drv_data->run == QUEUE_STOPPED) { @@ -916,8 +906,8 @@ static void pump_messages(struct work_struct *work) "got a message to pump, state is set to: baud %d, flag 0x%x, ctl 0x%x\n", drv_data->cur_chip->baud, drv_data->cur_chip->flag, drv_data->cur_chip->ctl_reg); - - dev_dbg(&drv_data->pdev->dev, + + dev_dbg(&drv_data->pdev->dev, "the first transfer len is %d\n", drv_data->cur_transfer->len); @@ -1193,6 +1183,15 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) dev_err(&pdev->dev, "can not alloc spi_master\n"); return -ENOMEM; } + + if (peripheral_request(P_SPI0_SCK, DRV_NAME) || + peripheral_request(P_SPI0_MISO, DRV_NAME) || + peripheral_request(P_SPI0_MOSI, DRV_NAME)) { + + dev_err(&pdev->dev, ": Requesting Peripherals failed\n"); + goto out_error_queue_alloc; + } + drv_data = spi_master_get_devdata(master); drv_data->master = master; drv_data->master_info = platform_info; -- cgit v1.2.3 From cc2f81a695640dd1c0cf12b35ee303460fa6d0bc Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Tue, 4 Dec 2007 23:45:13 -0800 Subject: spi: bfin spi uses portmux calls Use new Blackfin portmux interface, add error handling. Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 805f03bb5ef..759a6fc9b4d 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -1167,6 +1167,21 @@ static inline int destroy_queue(struct driver_data *drv_data) return 0; } +static int setup_pin_mux(int action) +{ + + u16 pin_req[] = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0}; + + if (action) { + if (peripheral_request_list(pin_req, DRV_NAME)) + return -EFAULT; + } else { + peripheral_free_list(pin_req); + } + + return 0; +} + static int __init bfin5xx_spi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1184,12 +1199,9 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) return -ENOMEM; } - if (peripheral_request(P_SPI0_SCK, DRV_NAME) || - peripheral_request(P_SPI0_MISO, DRV_NAME) || - peripheral_request(P_SPI0_MOSI, DRV_NAME)) { - + if (setup_pin_mux(1)) { dev_err(&pdev->dev, ": Requesting Peripherals failed\n"); - goto out_error_queue_alloc; + goto out_error; } drv_data = spi_master_get_devdata(master); @@ -1225,9 +1237,11 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "controller probe successfully\n"); return status; - out_error_queue_alloc: +out_error_queue_alloc: destroy_queue(drv_data); +out_error: spi_master_put(master); + return status; } @@ -1257,6 +1271,8 @@ static int __devexit bfin5xx_spi_remove(struct platform_device *pdev) /* Disconnect from the SPI framework */ spi_unregister_master(drv_data->master); + setup_pin_mux(0); + /* Prevent double remove */ platform_set_drvdata(pdev, NULL); -- cgit v1.2.3 From 5fec5b5a4ec0d6d8b41c56e3cc7de41063cd4736 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:13 -0800 Subject: spi: spi_bfin cleanups, error handling Cleanup and error handling - add error handling in SPI bus driver with selecting clients - use proper defines to access Blackfin MMRs - remove useless SSYNCs - cleaner use of portmux calls Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 111 ++++++++++++++++++++-------------------------- 1 file changed, 47 insertions(+), 64 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 759a6fc9b4d..803c5b25db5 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -59,10 +59,9 @@ MODULE_LICENSE("GPL"); #define DEFINE_SPI_REG(reg, off) \ static inline u16 read_##reg(void) \ - { return *(volatile unsigned short*)(SPI0_REGBASE + off); } \ + { return bfin_read16(SPI0_REGBASE + off); } \ static inline void write_##reg(u16 v) \ - {*(volatile unsigned short*)(SPI0_REGBASE + off) = v;\ - SSYNC();} + {bfin_write16(SPI0_REGBASE + off, v); } DEFINE_SPI_REG(CTRL, 0x00) DEFINE_SPI_REG(FLAG, 0x04) @@ -145,7 +144,6 @@ static void bfin_spi_enable(struct driver_data *drv_data) cr = read_CTRL(); write_CTRL(cr | BIT_CTL_ENABLE); - SSYNC(); } static void bfin_spi_disable(struct driver_data *drv_data) @@ -154,7 +152,6 @@ static void bfin_spi_disable(struct driver_data *drv_data) cr = read_CTRL(); write_CTRL(cr & (~BIT_CTL_ENABLE)); - SSYNC(); } /* Caculate the SPI_BAUD register value based on input HZ */ @@ -182,52 +179,44 @@ static int flush(struct driver_data *drv_data) return limit; } +#define MAX_SPI0_SSEL 7 + /* stop controller and re-config current chip*/ -static void restore_state(struct driver_data *drv_data) +static int restore_state(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; + int ret = 0; + u16 ssel[MAX_SPI0_SSEL] = {P_SPI0_SSEL1, P_SPI0_SSEL2, P_SPI0_SSEL3, + P_SPI0_SSEL4, P_SPI0_SSEL5, + P_SPI0_SSEL6, P_SPI0_SSEL7,}; /* Clear status and disable clock */ write_STAT(BIT_STAT_CLR); bfin_spi_disable(drv_data); dev_dbg(&drv_data->pdev->dev, "restoring spi ctl state\n"); + /* Load the registers */ + write_CTRL(chip->ctl_reg); + write_BAUD(chip->baud); + write_FLAG(chip->flag); + if (!chip->chip_select_requested) { + int i = chip->chip_select_num; - dev_dbg(&drv_data->pdev->dev, - "chip select number is %d\n", chip->chip_select_num); - - switch (chip->chip_select_num) { - case 1: - peripheral_request(P_SPI0_SSEL1, DRV_NAME); - break; - case 2: - peripheral_request(P_SPI0_SSEL2, DRV_NAME); - break; - case 3: - peripheral_request(P_SPI0_SSEL3, DRV_NAME); - break; - case 4: - peripheral_request(P_SPI0_SSEL4, DRV_NAME); - break; - case 5: - peripheral_request(P_SPI0_SSEL5, DRV_NAME); - break; - case 6: - peripheral_request(P_SPI0_SSEL6, DRV_NAME); - break; - case 7: - peripheral_request(P_SPI0_SSEL7, DRV_NAME); - break; - } + dev_dbg(&drv_data->pdev->dev, "chip select number is %d\n", i); + + if ((i > 0) && (i <= MAX_SPI0_SSEL)) + ret = peripheral_request(ssel[i-1], DRV_NAME); chip->chip_select_requested = 1; } - /* Load the registers */ - write_CTRL(chip->ctl_reg); - write_BAUD(chip->baud); - write_FLAG(chip->flag); + if (ret) + dev_dbg(&drv_data->pdev->dev, + ": request chip select number %d failed\n", + chip->chip_select_num); + + return ret; } /* used to kick off transfer in rx mode */ @@ -285,7 +274,6 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) while (drv_data->tx < drv_data->tx_end) { write_FLAG(chip->flag); - SSYNC(); write_TDBR(*(u8 *) (drv_data->tx)); while (read_STAT() & BIT_STAT_TXS) @@ -293,13 +281,13 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) while (!(read_STAT() & BIT_STAT_SPIF)) continue; write_FLAG(0xFF00 | chip->flag); - SSYNC(); + if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); ++drv_data->tx; } write_FLAG(0xFF00); - SSYNC(); + } static void u8_reader(struct driver_data *drv_data) @@ -331,7 +319,6 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) while (drv_data->rx < drv_data->rx_end) { write_FLAG(chip->flag); - SSYNC(); read_RDBR(); /* kick off */ while (!(read_STAT() & BIT_STAT_RXS)) @@ -340,13 +327,13 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) continue; *(u8 *) (drv_data->rx) = read_SHAW(); write_FLAG(0xFF00 | chip->flag); - SSYNC(); + if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); ++drv_data->rx; } write_FLAG(0xFF00); - SSYNC(); + } static void u8_duplex(struct driver_data *drv_data) @@ -370,7 +357,7 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) while (drv_data->rx < drv_data->rx_end) { write_FLAG(chip->flag); - SSYNC(); + write_TDBR(*(u8 *) (drv_data->tx)); while (!(read_STAT() & BIT_STAT_SPIF)) @@ -379,14 +366,14 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) continue; *(u8 *) (drv_data->rx) = read_RDBR(); write_FLAG(0xFF00 | chip->flag); - SSYNC(); + if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); ++drv_data->rx; ++drv_data->tx; } write_FLAG(0xFF00); - SSYNC(); + } static void u16_writer(struct driver_data *drv_data) @@ -412,7 +399,6 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) while (drv_data->tx < drv_data->tx_end) { write_FLAG(chip->flag); - SSYNC(); write_TDBR(*(u16 *) (drv_data->tx)); while ((read_STAT() & BIT_STAT_TXS)) @@ -420,13 +406,12 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) while (!(read_STAT() & BIT_STAT_SPIF)) continue; write_FLAG(0xFF00 | chip->flag); - SSYNC(); + if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); drv_data->tx += 2; } write_FLAG(0xFF00); - SSYNC(); } static void u16_reader(struct driver_data *drv_data) @@ -454,7 +439,6 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) while (drv_data->rx < drv_data->rx_end) { write_FLAG(chip->flag); - SSYNC(); read_RDBR(); /* kick off */ while (!(read_STAT() & BIT_STAT_RXS)) @@ -463,13 +447,12 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) continue; *(u16 *) (drv_data->rx) = read_SHAW(); write_FLAG(0xFF00 | chip->flag); - SSYNC(); + if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); drv_data->rx += 2; } write_FLAG(0xFF00); - SSYNC(); } static void u16_duplex(struct driver_data *drv_data) @@ -493,7 +476,6 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) while (drv_data->tx < drv_data->tx_end) { write_FLAG(chip->flag); - SSYNC(); write_TDBR(*(u16 *) (drv_data->tx)); while (!(read_STAT() & BIT_STAT_SPIF)) @@ -502,14 +484,13 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) continue; *(u16 *) (drv_data->rx) = read_RDBR(); write_FLAG(0xFF00 | chip->flag); - SSYNC(); + if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); drv_data->rx += 2; drv_data->tx += 2; } write_FLAG(0xFF00); - SSYNC(); } /* test if ther is more transfer to be done */ @@ -811,7 +792,6 @@ static void pump_transfers(unsigned long data) "IO duplex: cr is 0x%x\n", cr); write_CTRL(cr); - SSYNC(); drv_data->duplex(drv_data); @@ -826,7 +806,6 @@ static void pump_transfers(unsigned long data) "IO write: cr is 0x%x\n", cr); write_CTRL(cr); - SSYNC(); drv_data->write(drv_data); @@ -841,7 +820,6 @@ static void pump_transfers(unsigned long data) "IO read: cr is 0x%x\n", cr); write_CTRL(cr); - SSYNC(); drv_data->read(drv_data); if (drv_data->rx != drv_data->rx_end) @@ -892,6 +870,14 @@ static void pump_messages(struct work_struct *work) /* Extract head of queue */ drv_data->cur_msg = list_entry(drv_data->queue.next, struct spi_message, queue); + + /* Setup the SSP using the per chip configuration */ + drv_data->cur_chip = spi_get_ctldata(drv_data->cur_msg->spi); + if (restore_state(drv_data)) { + spin_unlock_irqrestore(&drv_data->lock, flags); + return; + }; + list_del_init(&drv_data->cur_msg->queue); /* Initial message state */ @@ -899,13 +885,10 @@ static void pump_messages(struct work_struct *work) drv_data->cur_transfer = list_entry(drv_data->cur_msg->transfers.next, struct spi_transfer, transfer_list); - /* Setup the SSP using the per chip configuration */ - drv_data->cur_chip = spi_get_ctldata(drv_data->cur_msg->spi); - restore_state(drv_data); - dev_dbg(&drv_data->pdev->dev, - "got a message to pump, state is set to: baud %d, flag 0x%x, ctl 0x%x\n", - drv_data->cur_chip->baud, drv_data->cur_chip->flag, - drv_data->cur_chip->ctl_reg); + dev_dbg(&drv_data->pdev->dev, "got a message to pump, " + "state is set to: baud %d, flag 0x%x, ctl 0x%x\n", + drv_data->cur_chip->baud, drv_data->cur_chip->flag, + drv_data->cur_chip->ctl_reg); dev_dbg(&drv_data->pdev->dev, "the first transfer len is %d\n", -- cgit v1.2.3 From fad91c890909aabab0d9858d50f3c8394ee16b21 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:14 -0800 Subject: spi: spi_bfin handles spi_transfer.cs_change Respect per-transfer cs_change field (protocol tweaking support) by adding and using cs_active/cs_deactive functions. Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 76 +++++++++++++++++++++++++++++++++-------------- 1 file changed, 54 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 803c5b25db5..c2d51cf3c63 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -115,6 +115,7 @@ struct driver_data { size_t rx_map_len; size_t tx_map_len; u8 n_bytes; + int cs_change; void (*write) (struct driver_data *); void (*read) (struct driver_data *); void (*duplex) (struct driver_data *); @@ -179,6 +180,26 @@ static int flush(struct driver_data *drv_data) return limit; } +/* Chip select operation functions for cs_change flag */ +static void cs_active(struct chip_data *chip) +{ + u16 flag = read_FLAG(); + + flag |= chip->flag; + flag &= ~(chip->flag << 8); + + write_FLAG(flag); +} + +static void cs_deactive(struct chip_data *chip) +{ + u16 flag = read_FLAG(); + + flag |= (chip->flag << 8); + + write_FLAG(flag); +} + #define MAX_SPI0_SSEL 7 /* stop controller and re-config current chip*/ @@ -198,7 +219,7 @@ static int restore_state(struct driver_data *drv_data) /* Load the registers */ write_CTRL(chip->ctl_reg); write_BAUD(chip->baud); - write_FLAG(chip->flag); + cs_active(chip); if (!chip->chip_select_requested) { int i = chip->chip_select_num; @@ -273,20 +294,20 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; while (drv_data->tx < drv_data->tx_end) { - write_FLAG(chip->flag); + cs_active(chip); write_TDBR(*(u8 *) (drv_data->tx)); while (read_STAT() & BIT_STAT_TXS) continue; while (!(read_STAT() & BIT_STAT_SPIF)) continue; - write_FLAG(0xFF00 | chip->flag); + cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); ++drv_data->tx; } - write_FLAG(0xFF00); + cs_deactive(chip); } @@ -318,7 +339,7 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; while (drv_data->rx < drv_data->rx_end) { - write_FLAG(chip->flag); + cs_active(chip); read_RDBR(); /* kick off */ while (!(read_STAT() & BIT_STAT_RXS)) @@ -326,13 +347,13 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) while (!(read_STAT() & BIT_STAT_SPIF)) continue; *(u8 *) (drv_data->rx) = read_SHAW(); - write_FLAG(0xFF00 | chip->flag); + cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); ++drv_data->rx; } - write_FLAG(0xFF00); + cs_deactive(chip); } @@ -356,7 +377,7 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; while (drv_data->rx < drv_data->rx_end) { - write_FLAG(chip->flag); + cs_active(chip); write_TDBR(*(u8 *) (drv_data->tx)); @@ -365,15 +386,14 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) while (!(read_STAT() & BIT_STAT_RXS)) continue; *(u8 *) (drv_data->rx) = read_RDBR(); - write_FLAG(0xFF00 | chip->flag); + cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); ++drv_data->rx; ++drv_data->tx; } - write_FLAG(0xFF00); - + cs_deactive(chip); } static void u16_writer(struct driver_data *drv_data) @@ -398,20 +418,20 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; while (drv_data->tx < drv_data->tx_end) { - write_FLAG(chip->flag); + cs_active(chip); write_TDBR(*(u16 *) (drv_data->tx)); while ((read_STAT() & BIT_STAT_TXS)) continue; while (!(read_STAT() & BIT_STAT_SPIF)) continue; - write_FLAG(0xFF00 | chip->flag); + cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); drv_data->tx += 2; } - write_FLAG(0xFF00); + cs_deactive(chip); } static void u16_reader(struct driver_data *drv_data) @@ -438,7 +458,7 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; while (drv_data->rx < drv_data->rx_end) { - write_FLAG(chip->flag); + cs_active(chip); read_RDBR(); /* kick off */ while (!(read_STAT() & BIT_STAT_RXS)) @@ -446,13 +466,13 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) while (!(read_STAT() & BIT_STAT_SPIF)) continue; *(u16 *) (drv_data->rx) = read_SHAW(); - write_FLAG(0xFF00 | chip->flag); + cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); drv_data->rx += 2; } - write_FLAG(0xFF00); + cs_deactive(chip); } static void u16_duplex(struct driver_data *drv_data) @@ -475,7 +495,7 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; while (drv_data->tx < drv_data->tx_end) { - write_FLAG(chip->flag); + cs_active(chip); write_TDBR(*(u16 *) (drv_data->tx)); while (!(read_STAT() & BIT_STAT_SPIF)) @@ -483,14 +503,14 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) while (!(read_STAT() & BIT_STAT_RXS)) continue; *(u16 *) (drv_data->rx) = read_RDBR(); - write_FLAG(0xFF00 | chip->flag); + cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); drv_data->rx += 2; drv_data->tx += 2; } - write_FLAG(0xFF00); + cs_deactive(chip); } /* test if ther is more transfer to be done */ @@ -515,6 +535,7 @@ static void *next_transfer(struct driver_data *drv_data) */ static void giveback(struct driver_data *drv_data) { + struct chip_data *chip = drv_data->cur_chip; struct spi_transfer *last_transfer; unsigned long flags; struct spi_message *msg; @@ -534,10 +555,13 @@ static void giveback(struct driver_data *drv_data) /* disable chip select signal. And not stop spi in autobuffer mode */ if (drv_data->tx_dma != 0xFFFF) { - write_FLAG(0xFF00); + cs_deactive(chip); bfin_spi_disable(drv_data); } + if (!drv_data->cs_change) + cs_deactive(chip); + if (msg->complete) msg->complete(msg->context); } @@ -546,6 +570,7 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) { struct driver_data *drv_data = (struct driver_data *)dev_id; struct spi_message *msg = drv_data->cur_msg; + struct chip_data *chip = drv_data->cur_chip; dev_dbg(&drv_data->pdev->dev, "in dma_irq_handler\n"); clear_dma_irqstat(CH_SPI); @@ -573,6 +598,9 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) msg->actual_length += drv_data->len_in_bytes; + if (drv_data->cs_change) + cs_deactive(chip); + /* Move to next transfer */ msg->state = next_transfer(drv_data); @@ -659,6 +687,7 @@ static void pump_transfers(unsigned long data) drv_data->rx_dma = transfer->rx_dma; drv_data->tx_dma = transfer->tx_dma; drv_data->len_in_bytes = transfer->len; + drv_data->cs_change = transfer->cs_change; width = chip->width; if (width == CFG_SPI_WORDSIZE16) { @@ -683,7 +712,7 @@ static void pump_transfers(unsigned long data) } else { write_BAUD(chip->baud); } - write_FLAG(chip->flag); + cs_active(chip); dev_dbg(&drv_data->pdev->dev, "now pumping a transfer: width is %d, len is %d\n", @@ -834,6 +863,9 @@ static void pump_transfers(unsigned long data) /* Update total byte transfered */ message->actual_length += drv_data->len; + if (drv_data->cs_change) + cs_deactive(chip); + /* Move to next transfer of this msg */ message->state = next_transfer(drv_data); } -- cgit v1.2.3 From 2ed355165ff4ec834a75770f2a15dc87f5e06088 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 4 Dec 2007 23:45:14 -0800 Subject: spi: spi_bfin, don't bypass spi framework Prevent people from setting bits in ctl_reg that the SPI framework already handles, hopefully we can one day drop ctl_reg completely Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index c2d51cf3c63..8e4ea8906dc 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -998,6 +998,18 @@ static int setup(struct spi_device *spi) /* chip_info isn't always needed */ if (chip_info) { + /* Make sure people stop trying to set fields via ctl_reg + * when they should actually be using common SPI framework. + * Currently we let through: WOM EMISO PSSE GM SZ TIMOD. + * Not sure if a user actually needs/uses any of these, + * but let's assume (for now) they do. + */ + if (chip_info->ctl_reg & (SPE|MSTR|CPOL|CPHA|LSBF|SIZE)) { + dev_err(&spi->dev, "do not set bits in ctl_reg " + "that the SPI framework manages\n"); + return -EINVAL; + } + chip->enable_dma = chip_info->enable_dma != 0 && drv_data->master_info->enable_dma; chip->ctl_reg = chip_info->ctl_reg; -- cgit v1.2.3 From a32c691d7cf5c37af753255ef4843b18a31935b9 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:15 -0800 Subject: spi: spi_bfin uses platform device resources Update spi driver to support multi-ports by using platform resources; tested on STAMP537+SPI_MMC, other boards need more testing. Plus other minor updates. Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 124 +++++++++++++++++++++++++++++++--------------- 1 file changed, 83 insertions(+), 41 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 8e4ea8906dc..a8311a83ae9 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -13,6 +13,8 @@ * March 10, 2006 bfin5xx_spi.c Created. (Luke Yang) * August 7, 2006 added full duplex mode (Axel Weiss & Luke Yang) * July 17, 2007 add support for BF54x SPI0 controller (Bryan Wu) + * July 30, 2007 add platfrom_resource interface to support multi-port + * SPI controller (Bryan Wu) * * Copyright 2004-2007 Analog Devices Inc. * @@ -50,18 +52,25 @@ #include #include -MODULE_AUTHOR("Bryan Wu, Luke Yang"); -MODULE_DESCRIPTION("Blackfin BF5xx SPI Contoller Driver"); +#define DRV_NAME "bfin-spi" +#define DRV_AUTHOR "Bryan Wu, Luke Yang" +#define DRV_DESC "Blackfin BF5xx on-chip SPI Contoller Driver" +#define DRV_VERSION "1.0" + +MODULE_AUTHOR(DRV_AUTHOR); +MODULE_DESCRIPTION(DRV_DESC); MODULE_LICENSE("GPL"); -#define DRV_NAME "bfin-spi-master" #define IS_DMA_ALIGNED(x) (((u32)(x)&0x07)==0) +static u32 spi_dma_ch; +static u32 spi_regs_base; + #define DEFINE_SPI_REG(reg, off) \ static inline u16 read_##reg(void) \ - { return bfin_read16(SPI0_REGBASE + off); } \ + { return bfin_read16(spi_regs_base + off); } \ static inline void write_##reg(u16 v) \ - {bfin_write16(SPI0_REGBASE + off, v); } + {bfin_write16(spi_regs_base + off, v); } DEFINE_SPI_REG(CTRL, 0x00) DEFINE_SPI_REG(FLAG, 0x04) @@ -573,10 +582,10 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) struct chip_data *chip = drv_data->cur_chip; dev_dbg(&drv_data->pdev->dev, "in dma_irq_handler\n"); - clear_dma_irqstat(CH_SPI); + clear_dma_irqstat(spi_dma_ch); /* Wait for DMA to complete */ - while (get_dma_curr_irqstat(CH_SPI) & DMA_RUN) + while (get_dma_curr_irqstat(spi_dma_ch) & DMA_RUN) continue; /* @@ -586,12 +595,12 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) * register until it goes low for 2 successive reads */ if (drv_data->tx != NULL) { - while ((bfin_read_SPI_STAT() & TXS) || - (bfin_read_SPI_STAT() & TXS)) + while ((read_STAT() & TXS) || + (read_STAT() & TXS)) continue; } - while (!(bfin_read_SPI_STAT() & SPIF)) + while (!(read_STAT() & SPIF)) continue; bfin_spi_disable(drv_data); @@ -610,8 +619,8 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) /* free the irq handler before next transfer */ dev_dbg(&drv_data->pdev->dev, "disable dma channel irq%d\n", - CH_SPI); - dma_disable_irq(CH_SPI); + spi_dma_ch); + dma_disable_irq(spi_dma_ch); return IRQ_HANDLED; } @@ -726,19 +735,19 @@ static void pump_transfers(unsigned long data) if (drv_data->cur_chip->enable_dma && drv_data->len > 6) { write_STAT(BIT_STAT_CLR); - disable_dma(CH_SPI); - clear_dma_irqstat(CH_SPI); + disable_dma(spi_dma_ch); + clear_dma_irqstat(spi_dma_ch); bfin_spi_disable(drv_data); /* config dma channel */ dev_dbg(&drv_data->pdev->dev, "doing dma transfer\n"); if (width == CFG_SPI_WORDSIZE16) { - set_dma_x_count(CH_SPI, drv_data->len); - set_dma_x_modify(CH_SPI, 2); + set_dma_x_count(spi_dma_ch, drv_data->len); + set_dma_x_modify(spi_dma_ch, 2); dma_width = WDSIZE_16; } else { - set_dma_x_count(CH_SPI, drv_data->len); - set_dma_x_modify(CH_SPI, 1); + set_dma_x_count(spi_dma_ch, drv_data->len); + set_dma_x_modify(spi_dma_ch, 1); dma_width = WDSIZE_8; } @@ -753,9 +762,10 @@ static void pump_transfers(unsigned long data) /* no irq in autobuffer mode */ dma_config = (DMAFLOW_AUTO | RESTART | dma_width | DI_EN); - set_dma_config(CH_SPI, dma_config); - set_dma_start_addr(CH_SPI, (unsigned long)drv_data->tx); - enable_dma(CH_SPI); + set_dma_config(spi_dma_ch, dma_config); + set_dma_start_addr(spi_dma_ch, + (unsigned long)drv_data->tx); + enable_dma(spi_dma_ch); write_CTRL(cr | CFG_SPI_DMAWRITE | (width << 8) | (CFG_SPI_ENABLE << 14)); @@ -776,14 +786,15 @@ static void pump_transfers(unsigned long data) /* clear tx reg soformer data is not shifted out */ write_TDBR(0xFF); - set_dma_x_count(CH_SPI, drv_data->len); + set_dma_x_count(spi_dma_ch, drv_data->len); /* start dma */ - dma_enable_irq(CH_SPI); + dma_enable_irq(spi_dma_ch); dma_config = (WNR | RESTART | dma_width | DI_EN); - set_dma_config(CH_SPI, dma_config); - set_dma_start_addr(CH_SPI, (unsigned long)drv_data->rx); - enable_dma(CH_SPI); + set_dma_config(spi_dma_ch, dma_config); + set_dma_start_addr(spi_dma_ch, + (unsigned long)drv_data->rx); + enable_dma(spi_dma_ch); cr |= CFG_SPI_DMAREAD | (width << 8) | (CFG_SPI_ENABLE << @@ -794,11 +805,12 @@ static void pump_transfers(unsigned long data) dev_dbg(&drv_data->pdev->dev, "doing DMA out.\n"); /* start dma */ - dma_enable_irq(CH_SPI); + dma_enable_irq(spi_dma_ch); dma_config = (RESTART | dma_width | DI_EN); - set_dma_config(CH_SPI, dma_config); - set_dma_start_addr(CH_SPI, (unsigned long)drv_data->tx); - enable_dma(CH_SPI); + set_dma_config(spi_dma_ch, dma_config); + set_dma_start_addr(spi_dma_ch, + (unsigned long)drv_data->tx); + enable_dma(spi_dma_ch); write_CTRL(cr | CFG_SPI_DMAWRITE | (width << 8) | (CFG_SPI_ENABLE << 14)); @@ -1034,17 +1046,17 @@ static int setup(struct spi_device *spi) */ if (chip->enable_dma && !dma_requested) { /* register dma irq handler */ - if (request_dma(CH_SPI, "BF53x_SPI_DMA") < 0) { + if (request_dma(spi_dma_ch, "BF53x_SPI_DMA") < 0) { dev_dbg(&spi->dev, "Unable to request BlackFin SPI DMA channel\n"); return -ENODEV; } - if (set_dma_callback(CH_SPI, (void *)dma_irq_handler, drv_data) - < 0) { + if (set_dma_callback(spi_dma_ch, (void *)dma_irq_handler, + drv_data) < 0) { dev_dbg(&spi->dev, "Unable to set dma callback\n"); return -EPERM; } - dma_disable_irq(CH_SPI); + dma_disable_irq(spi_dma_ch); dma_requested = 1; } @@ -1215,6 +1227,7 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) struct bfin5xx_spi_master *platform_info; struct spi_master *master; struct driver_data *drv_data = 0; + struct resource *res; int status = 0; platform_info = dev->platform_data; @@ -1242,15 +1255,38 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) master->setup = setup; master->transfer = transfer; + /* Find and map our resources */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + dev_err(dev, "Cannot get IORESOURCE_MEM\n"); + status = -ENOENT; + goto out_error_get_res; + } + + spi_regs_base = (u32) ioremap(res->start, (res->end - res->start)+1); + if (!spi_regs_base) { + dev_err(dev, "Cannot map IO\n"); + status = -ENXIO; + goto out_error_ioremap; + } + + spi_dma_ch = platform_get_irq(pdev, 0); + if (spi_dma_ch < 0) { + dev_err(dev, "No DMA channel specified\n"); + status = -ENOENT; + goto out_error_no_dma_ch; + } + /* Initial and start queue */ status = init_queue(drv_data); if (status != 0) { - dev_err(&pdev->dev, "problem initializing queue\n"); + dev_err(dev, "problem initializing queue\n"); goto out_error_queue_alloc; } + status = start_queue(drv_data); if (status != 0) { - dev_err(&pdev->dev, "problem starting queue\n"); + dev_err(dev, "problem starting queue\n"); goto out_error_queue_alloc; } @@ -1258,14 +1294,20 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, drv_data); status = spi_register_master(master); if (status != 0) { - dev_err(&pdev->dev, "problem registering spi master\n"); + dev_err(dev, "problem registering spi master\n"); goto out_error_queue_alloc; } - dev_dbg(&pdev->dev, "controller probe successfully\n"); + + dev_info(dev, "%s, Version %s, regs_base @ 0x%08x\n", + DRV_DESC, DRV_VERSION, spi_regs_base); return status; out_error_queue_alloc: destroy_queue(drv_data); +out_error_no_dma_ch: + iounmap((void *) spi_regs_base); +out_error_ioremap: +out_error_get_res: out_error: spi_master_put(master); @@ -1291,8 +1333,8 @@ static int __devexit bfin5xx_spi_remove(struct platform_device *pdev) /* Release DMA */ if (drv_data->master_info->enable_dma) { - if (dma_channel_active(CH_SPI)) - free_dma(CH_SPI); + if (dma_channel_active(spi_dma_ch)) + free_dma(spi_dma_ch); } /* Disconnect from the SPI framework */ @@ -1347,7 +1389,7 @@ static int bfin5xx_spi_resume(struct platform_device *pdev) MODULE_ALIAS("bfin-spi-master"); /* for platform bus hotplug */ static struct platform_driver bfin5xx_spi_driver = { .driver = { - .name = "bfin-spi-master", + .name = DRV_NAME, .owner = THIS_MODULE, }, .suspend = bfin5xx_spi_suspend, -- cgit v1.2.3 From 7c4ef09449ca382da2e39b93ca9d03e3dbd5c17c Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Tue, 4 Dec 2007 23:45:16 -0800 Subject: spi: spi_bfin uses portmux for additional busses Use portmux mechanism to support SPI busses 1 and 2, instead of just the original bus 0. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 51 ++++++++++++++++++++++++++++------------------- 1 file changed, 31 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index a8311a83ae9..045d3ecf459 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -209,17 +209,26 @@ static void cs_deactive(struct chip_data *chip) write_FLAG(flag); } -#define MAX_SPI0_SSEL 7 +#define MAX_SPI_SSEL 7 /* stop controller and re-config current chip*/ static int restore_state(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; int ret = 0; - u16 ssel[MAX_SPI0_SSEL] = {P_SPI0_SSEL1, P_SPI0_SSEL2, P_SPI0_SSEL3, - P_SPI0_SSEL4, P_SPI0_SSEL5, - P_SPI0_SSEL6, P_SPI0_SSEL7,}; - + u16 ssel[3][MAX_SPI_SSEL] = { + {P_SPI0_SSEL1, P_SPI0_SSEL2, P_SPI0_SSEL3, + P_SPI0_SSEL4, P_SPI0_SSEL5, + P_SPI0_SSEL6, P_SPI0_SSEL7}, + + {P_SPI1_SSEL1, P_SPI1_SSEL2, P_SPI1_SSEL3, + P_SPI1_SSEL4, P_SPI1_SSEL5, + P_SPI1_SSEL6, P_SPI1_SSEL7}, + + {P_SPI2_SSEL1, P_SPI2_SSEL2, P_SPI2_SSEL3, + P_SPI2_SSEL4, P_SPI2_SSEL5, + P_SPI2_SSEL6, P_SPI2_SSEL7}, + }; /* Clear status and disable clock */ write_STAT(BIT_STAT_CLR); bfin_spi_disable(drv_data); @@ -234,9 +243,9 @@ static int restore_state(struct driver_data *drv_data) int i = chip->chip_select_num; dev_dbg(&drv_data->pdev->dev, "chip select number is %d\n", i); - - if ((i > 0) && (i <= MAX_SPI0_SSEL)) - ret = peripheral_request(ssel[i-1], DRV_NAME); + if ((i > 0) && (i <= MAX_SPI_SSEL)) + ret = peripheral_request( + ssel[drv_data->master->bus_num][i-1], DRV_NAME); chip->chip_select_requested = 1; } @@ -329,7 +338,6 @@ static void u8_reader(struct driver_data *drv_data) write_TDBR(0xFFFF); dummy_read(); - while (drv_data->rx < drv_data->rx_end - 1) { while (!(read_STAT() & BIT_STAT_RXS)) continue; @@ -640,7 +648,6 @@ static void pump_transfers(unsigned long data) message = drv_data->cur_msg; transfer = drv_data->cur_transfer; chip = drv_data->cur_chip; - /* * if msg is error or done, report it back using complete() callback */ @@ -1206,16 +1213,20 @@ static inline int destroy_queue(struct driver_data *drv_data) return 0; } -static int setup_pin_mux(int action) +static int setup_pin_mux(int action, int bus_num) { - u16 pin_req[] = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0}; + u16 pin_req[3][4] = { + {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0}, + {P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0}, + {P_SPI2_SCK, P_SPI2_MISO, P_SPI2_MOSI, 0}, + }; if (action) { - if (peripheral_request_list(pin_req, DRV_NAME)) + if (peripheral_request_list(pin_req[bus_num], DRV_NAME)) return -EFAULT; } else { - peripheral_free_list(pin_req); + peripheral_free_list(pin_req[bus_num]); } return 0; @@ -1239,11 +1250,6 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) return -ENOMEM; } - if (setup_pin_mux(1)) { - dev_err(&pdev->dev, ": Requesting Peripherals failed\n"); - goto out_error; - } - drv_data = spi_master_get_devdata(master); drv_data->master = master; drv_data->master_info = platform_info; @@ -1298,6 +1304,11 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) goto out_error_queue_alloc; } + if (setup_pin_mux(1, master->bus_num)) { + dev_err(&pdev->dev, ": Requesting Peripherals failed\n"); + goto out_error; + } + dev_info(dev, "%s, Version %s, regs_base @ 0x%08x\n", DRV_DESC, DRV_VERSION, spi_regs_base); return status; @@ -1340,7 +1351,7 @@ static int __devexit bfin5xx_spi_remove(struct platform_device *pdev) /* Disconnect from the SPI framework */ spi_unregister_master(drv_data->master); - setup_pin_mux(0); + setup_pin_mux(0, drv_data->master->bus_num); /* Prevent double remove */ platform_set_drvdata(pdev, NULL); -- cgit v1.2.3 From 12e17c4267a5b2a5ba77bd53a62388be641534b8 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Tue, 4 Dec 2007 23:45:16 -0800 Subject: spi: spi_bfin, rearrange portmux calls Move pin muxing to setup and cleanup methods. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 53 +++++++++++++++++++++++++---------------------- 1 file changed, 28 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 045d3ecf459..4496ed158e6 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -136,7 +136,6 @@ struct chip_data { u16 flag; u8 chip_select_num; - u8 chip_select_requested; u8 n_bytes; u8 width; /* 0 or 1 */ u8 enable_dma; @@ -216,19 +215,7 @@ static int restore_state(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; int ret = 0; - u16 ssel[3][MAX_SPI_SSEL] = { - {P_SPI0_SSEL1, P_SPI0_SSEL2, P_SPI0_SSEL3, - P_SPI0_SSEL4, P_SPI0_SSEL5, - P_SPI0_SSEL6, P_SPI0_SSEL7}, - - {P_SPI1_SSEL1, P_SPI1_SSEL2, P_SPI1_SSEL3, - P_SPI1_SSEL4, P_SPI1_SSEL5, - P_SPI1_SSEL6, P_SPI1_SSEL7}, - - {P_SPI2_SSEL1, P_SPI2_SSEL2, P_SPI2_SSEL3, - P_SPI2_SSEL4, P_SPI2_SSEL5, - P_SPI2_SSEL6, P_SPI2_SSEL7}, - }; + /* Clear status and disable clock */ write_STAT(BIT_STAT_CLR); bfin_spi_disable(drv_data); @@ -239,17 +226,6 @@ static int restore_state(struct driver_data *drv_data) write_BAUD(chip->baud); cs_active(chip); - if (!chip->chip_select_requested) { - int i = chip->chip_select_num; - - dev_dbg(&drv_data->pdev->dev, "chip select number is %d\n", i); - if ((i > 0) && (i <= MAX_SPI_SSEL)) - ret = peripheral_request( - ssel[drv_data->master->bus_num][i-1], DRV_NAME); - - chip->chip_select_requested = 1; - } - if (ret) dev_dbg(&drv_data->pdev->dev, ": request chip select number %d failed\n", @@ -983,6 +959,22 @@ static int transfer(struct spi_device *spi, struct spi_message *msg) return 0; } +#define MAX_SPI_SSEL 7 + +static u16 ssel[3][MAX_SPI_SSEL] = { + {P_SPI0_SSEL1, P_SPI0_SSEL2, P_SPI0_SSEL3, + P_SPI0_SSEL4, P_SPI0_SSEL5, + P_SPI0_SSEL6, P_SPI0_SSEL7}, + + {P_SPI1_SSEL1, P_SPI1_SSEL2, P_SPI1_SSEL3, + P_SPI1_SSEL4, P_SPI1_SSEL5, + P_SPI1_SSEL6, P_SPI1_SSEL7}, + + {P_SPI2_SSEL1, P_SPI2_SSEL2, P_SPI2_SSEL3, + P_SPI2_SSEL4, P_SPI2_SSEL5, + P_SPI2_SSEL6, P_SPI2_SSEL7}, +}; + /* first setup for new devices */ static int setup(struct spi_device *spi) { @@ -1113,6 +1105,12 @@ static int setup(struct spi_device *spi) spi_set_ctldata(spi, chip); + dev_dbg(&spi->dev, "chip select number is %d\n", chip->chip_select_num); + if ((chip->chip_select_num > 0) + && (chip->chip_select_num <= spi->master->num_chipselect)) + peripheral_request(ssel[spi->master->bus_num] + [chip->chip_select_num-1], DRV_NAME); + return 0; } @@ -1124,6 +1122,11 @@ static void cleanup(struct spi_device *spi) { struct chip_data *chip = spi_get_ctldata(spi); + if ((chip->chip_select_num > 0) + && (chip->chip_select_num <= spi->master->num_chipselect)) + peripheral_free(ssel[spi->master->bus_num] + [chip->chip_select_num-1]); + kfree(chip); } -- cgit v1.2.3 From cc487e732089360727e60f9fdbe3ff6cc4ca3155 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Tue, 4 Dec 2007 23:45:17 -0800 Subject: spi: spi_bfin: change handling of communication parameters Fix SPI driver to work with SPI flash ST M25P16 on bf548 Currently the SPI driver enables the SPI controller and sets the SPI baud register for each SPI transfer. But they should never be changed within a SPI message session, in which several SPI transfers are pumped. This patch moves SPI setting to the begining of a message session, and never disables SPI controller until an error occurs. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 162 +++++++++++++++++++++++++--------------------- 1 file changed, 87 insertions(+), 75 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 4496ed158e6..c99a2afabf0 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -222,9 +222,13 @@ static int restore_state(struct driver_data *drv_data) dev_dbg(&drv_data->pdev->dev, "restoring spi ctl state\n"); /* Load the registers */ - write_CTRL(chip->ctl_reg); + cs_deactive(chip); write_BAUD(chip->baud); - cs_active(chip); + chip->ctl_reg &= (~BIT_CTL_TIMOD); + chip->ctl_reg |= (chip->width << 8); + write_CTRL(chip->ctl_reg); + + bfin_spi_enable(drv_data); if (ret) dev_dbg(&drv_data->pdev->dev, @@ -271,6 +275,7 @@ static void u8_writer(struct driver_data *drv_data) { dev_dbg(&drv_data->pdev->dev, "cr8-s is 0x%x\n", read_STAT()); + while (drv_data->tx < drv_data->tx_end) { write_TDBR(*(u8 *) (drv_data->tx)); while (read_STAT() & BIT_STAT_TXS) @@ -293,16 +298,16 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) write_TDBR(*(u8 *) (drv_data->tx)); while (read_STAT() & BIT_STAT_TXS) continue; - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); ++drv_data->tx; } - cs_deactive(chip); + /* poll for SPI completion before returning */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; } static void u8_reader(struct driver_data *drv_data) @@ -314,6 +319,7 @@ static void u8_reader(struct driver_data *drv_data) write_TDBR(0xFFFF); dummy_read(); + while (drv_data->rx < drv_data->rx_end - 1) { while (!(read_STAT() & BIT_STAT_RXS)) continue; @@ -331,23 +337,30 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; - while (drv_data->rx < drv_data->rx_end) { - cs_active(chip); + /* clear TDBR buffer before read(else it will be shifted out) */ + write_TDBR(0xFFFF); - read_RDBR(); /* kick off */ - while (!(read_STAT() & BIT_STAT_RXS)) - continue; - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; - *(u8 *) (drv_data->rx) = read_SHAW(); + cs_active(chip); + dummy_read(); + + while (drv_data->rx < drv_data->rx_end - 1) { cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); + + while (!(read_STAT() & BIT_STAT_RXS)) + continue; + cs_active(chip); + *(u8 *) (drv_data->rx) = read_RDBR(); ++drv_data->rx; } cs_deactive(chip); + while (!(read_STAT() & BIT_STAT_RXS)) + continue; + *(u8 *) (drv_data->rx) = read_SHAW(); + ++drv_data->rx; } static void u8_duplex(struct driver_data *drv_data) @@ -355,7 +368,7 @@ static void u8_duplex(struct driver_data *drv_data) /* in duplex mode, clk is triggered by writing of TDBR */ while (drv_data->rx < drv_data->rx_end) { write_TDBR(*(u8 *) (drv_data->tx)); - while (!(read_STAT() & BIT_STAT_SPIF)) + while (read_STAT() & BIT_STAT_TXS) continue; while (!(read_STAT() & BIT_STAT_RXS)) continue; @@ -363,6 +376,10 @@ static void u8_duplex(struct driver_data *drv_data) ++drv_data->rx; ++drv_data->tx; } + + /* poll for SPI completion before returning */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; } static void u8_cs_chg_duplex(struct driver_data *drv_data) @@ -372,9 +389,8 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) while (drv_data->rx < drv_data->rx_end) { cs_active(chip); - write_TDBR(*(u8 *) (drv_data->tx)); - while (!(read_STAT() & BIT_STAT_SPIF)) + while (read_STAT() & BIT_STAT_TXS) continue; while (!(read_STAT() & BIT_STAT_RXS)) continue; @@ -386,7 +402,10 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) ++drv_data->rx; ++drv_data->tx; } - cs_deactive(chip); + + /* poll for SPI completion before returning */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; } static void u16_writer(struct driver_data *drv_data) @@ -416,21 +435,26 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) write_TDBR(*(u16 *) (drv_data->tx)); while ((read_STAT() & BIT_STAT_TXS)) continue; - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); drv_data->tx += 2; } - cs_deactive(chip); + + /* poll for SPI completion before returning */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; } static void u16_reader(struct driver_data *drv_data) { dev_dbg(&drv_data->pdev->dev, "cr-16 is 0x%x\n", read_STAT()); + + /* clear TDBR buffer before read(else it will be shifted out) */ + write_TDBR(0xFFFF); + dummy_read(); while (drv_data->rx < (drv_data->rx_end - 2)) { @@ -450,22 +474,30 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; - while (drv_data->rx < drv_data->rx_end) { - cs_active(chip); + /* clear TDBR buffer before read(else it will be shifted out) */ + write_TDBR(0xFFFF); - read_RDBR(); /* kick off */ - while (!(read_STAT() & BIT_STAT_RXS)) - continue; - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; - *(u16 *) (drv_data->rx) = read_SHAW(); + cs_active(chip); + dummy_read(); + + while (drv_data->rx < drv_data->rx_end) { cs_deactive(chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); + + while (!(read_STAT() & BIT_STAT_RXS)) + continue; + cs_active(chip); + *(u16 *) (drv_data->rx) = read_RDBR(); drv_data->rx += 2; } cs_deactive(chip); + + while (!(read_STAT() & BIT_STAT_RXS)) + continue; + *(u16 *) (drv_data->rx) = read_SHAW(); + drv_data->rx += 2; } static void u16_duplex(struct driver_data *drv_data) @@ -473,7 +505,7 @@ static void u16_duplex(struct driver_data *drv_data) /* in duplex mode, clk is triggered by writing of TDBR */ while (drv_data->tx < drv_data->tx_end) { write_TDBR(*(u16 *) (drv_data->tx)); - while (!(read_STAT() & BIT_STAT_SPIF)) + while (read_STAT() & BIT_STAT_TXS) continue; while (!(read_STAT() & BIT_STAT_RXS)) continue; @@ -481,6 +513,10 @@ static void u16_duplex(struct driver_data *drv_data) drv_data->rx += 2; drv_data->tx += 2; } + + /* poll for SPI completion before returning */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; } static void u16_cs_chg_duplex(struct driver_data *drv_data) @@ -491,7 +527,7 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) cs_active(chip); write_TDBR(*(u16 *) (drv_data->tx)); - while (!(read_STAT() & BIT_STAT_SPIF)) + while (read_STAT() & BIT_STAT_TXS) continue; while (!(read_STAT() & BIT_STAT_RXS)) continue; @@ -503,7 +539,10 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) drv_data->rx += 2; drv_data->tx += 2; } - cs_deactive(chip); + + /* poll for SPI completion before returning */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; } /* test if ther is more transfer to be done */ @@ -587,8 +626,6 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) while (!(read_STAT() & SPIF)) continue; - bfin_spi_disable(drv_data); - msg->actual_length += drv_data->len_in_bytes; if (drv_data->cs_change) @@ -698,12 +735,8 @@ static void pump_transfers(unsigned long data) message->state = RUNNING_STATE; dma_config = 0; - /* restore spi status for each spi transfer */ - if (transfer->speed_hz) { - write_BAUD(hz_to_spi_baud(transfer->speed_hz)); - } else { - write_BAUD(chip->baud); - } + write_STAT(BIT_STAT_CLR); + cr = (read_CTRL() & (~BIT_CTL_TIMOD)); cs_active(chip); dev_dbg(&drv_data->pdev->dev, @@ -717,10 +750,8 @@ static void pump_transfers(unsigned long data) */ if (drv_data->cur_chip->enable_dma && drv_data->len > 6) { - write_STAT(BIT_STAT_CLR); disable_dma(spi_dma_ch); clear_dma_irqstat(spi_dma_ch); - bfin_spi_disable(drv_data); /* config dma channel */ dev_dbg(&drv_data->pdev->dev, "doing dma transfer\n"); @@ -734,14 +765,14 @@ static void pump_transfers(unsigned long data) dma_width = WDSIZE_8; } - /* set transfer width,direction. And enable spi */ - cr = (read_CTRL() & (~BIT_CTL_TIMOD)); - /* dirty hack for autobuffer DMA mode */ if (drv_data->tx_dma == 0xFFFF) { dev_dbg(&drv_data->pdev->dev, "doing autobuffer DMA out.\n"); + /* set SPI transfer mode */ + write_CTRL(cr | CFG_SPI_DMAWRITE); + /* no irq in autobuffer mode */ dma_config = (DMAFLOW_AUTO | RESTART | dma_width | DI_EN); @@ -749,8 +780,6 @@ static void pump_transfers(unsigned long data) set_dma_start_addr(spi_dma_ch, (unsigned long)drv_data->tx); enable_dma(spi_dma_ch); - write_CTRL(cr | CFG_SPI_DMAWRITE | (width << 8) | - (CFG_SPI_ENABLE << 14)); /* just return here, there can only be one transfer in this mode */ message->status = 0; @@ -763,11 +792,11 @@ static void pump_transfers(unsigned long data) /* set transfer mode, and enable SPI */ dev_dbg(&drv_data->pdev->dev, "doing DMA in.\n"); - /* disable SPI before write to TDBR */ - write_CTRL(cr & ~BIT_CTL_ENABLE); + /* set SPI transfer mode */ + write_CTRL(cr | CFG_SPI_DMAREAD); /* clear tx reg soformer data is not shifted out */ - write_TDBR(0xFF); + write_TDBR(0xFFFF); set_dma_x_count(spi_dma_ch, drv_data->len); @@ -779,14 +808,12 @@ static void pump_transfers(unsigned long data) (unsigned long)drv_data->rx); enable_dma(spi_dma_ch); - cr |= - CFG_SPI_DMAREAD | (width << 8) | (CFG_SPI_ENABLE << - 14); - /* set transfer mode, and enable SPI */ - write_CTRL(cr); } else if (drv_data->tx != NULL) { dev_dbg(&drv_data->pdev->dev, "doing DMA out.\n"); + /* set SPI transfer mode */ + write_CTRL(cr | CFG_SPI_DMAWRITE); + /* start dma */ dma_enable_irq(spi_dma_ch); dma_config = (RESTART | dma_width | DI_EN); @@ -794,28 +821,20 @@ static void pump_transfers(unsigned long data) set_dma_start_addr(spi_dma_ch, (unsigned long)drv_data->tx); enable_dma(spi_dma_ch); - - write_CTRL(cr | CFG_SPI_DMAWRITE | (width << 8) | - (CFG_SPI_ENABLE << 14)); - } } else { /* IO mode write then read */ dev_dbg(&drv_data->pdev->dev, "doing IO transfer\n"); - write_STAT(BIT_STAT_CLR); - if (drv_data->tx != NULL && drv_data->rx != NULL) { /* full duplex mode */ BUG_ON((drv_data->tx_end - drv_data->tx) != (drv_data->rx_end - drv_data->rx)); - cr = (read_CTRL() & (~BIT_CTL_TIMOD)); - cr |= CFG_SPI_WRITE | (width << 8) | - (CFG_SPI_ENABLE << 14); dev_dbg(&drv_data->pdev->dev, "IO duplex: cr is 0x%x\n", cr); - write_CTRL(cr); + /* set SPI transfer mode */ + write_CTRL(cr | CFG_SPI_WRITE); drv_data->duplex(drv_data); @@ -823,13 +842,11 @@ static void pump_transfers(unsigned long data) tranf_success = 0; } else if (drv_data->tx != NULL) { /* write only half duplex */ - cr = (read_CTRL() & (~BIT_CTL_TIMOD)); - cr |= CFG_SPI_WRITE | (width << 8) | - (CFG_SPI_ENABLE << 14); dev_dbg(&drv_data->pdev->dev, "IO write: cr is 0x%x\n", cr); - write_CTRL(cr); + /* set SPI transfer mode */ + write_CTRL(cr | CFG_SPI_WRITE); drv_data->write(drv_data); @@ -837,13 +854,11 @@ static void pump_transfers(unsigned long data) tranf_success = 0; } else if (drv_data->rx != NULL) { /* read only half duplex */ - cr = (read_CTRL() & (~BIT_CTL_TIMOD)); - cr |= CFG_SPI_READ | (width << 8) | - (CFG_SPI_ENABLE << 14); dev_dbg(&drv_data->pdev->dev, "IO read: cr is 0x%x\n", cr); - write_CTRL(cr); + /* set SPI transfer mode */ + write_CTRL(cr | CFG_SPI_READ); drv_data->read(drv_data); if (drv_data->rx != drv_data->rx_end) @@ -858,9 +873,6 @@ static void pump_transfers(unsigned long data) /* Update total byte transfered */ message->actual_length += drv_data->len; - if (drv_data->cs_change) - cs_deactive(chip); - /* Move to next transfer of this msg */ message->state = next_transfer(drv_data); } -- cgit v1.2.3 From 3f479a65b3f49ee4f058a965e6e33d97ee467b68 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Tue, 4 Dec 2007 23:45:18 -0800 Subject: spi: spi_bfin: relocate spin/waits Move spin/waits to more correct locations in bfin SPI driver. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 84 +++++++++++++++++++++++++++++------------------ 1 file changed, 52 insertions(+), 32 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index c99a2afabf0..c7cfd95fa8e 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -276,22 +276,26 @@ static void u8_writer(struct driver_data *drv_data) dev_dbg(&drv_data->pdev->dev, "cr8-s is 0x%x\n", read_STAT()); + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + while (drv_data->tx < drv_data->tx_end) { write_TDBR(*(u8 *) (drv_data->tx)); while (read_STAT() & BIT_STAT_TXS) continue; ++drv_data->tx; } - - /* poll for SPI completion before returning */ - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; } static void u8_cs_chg_writer(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + while (drv_data->tx < drv_data->tx_end) { cs_active(chip); @@ -304,10 +308,6 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) udelay(chip->cs_chg_udelay); ++drv_data->tx; } - - /* poll for SPI completion before returning */ - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; } static void u8_reader(struct driver_data *drv_data) @@ -315,6 +315,10 @@ static void u8_reader(struct driver_data *drv_data) dev_dbg(&drv_data->pdev->dev, "cr-8 is 0x%x\n", read_STAT()); + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + /* clear TDBR buffer before read(else it will be shifted out) */ write_TDBR(0xFFFF); @@ -337,6 +341,10 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + /* clear TDBR buffer before read(else it will be shifted out) */ write_TDBR(0xFFFF); @@ -365,6 +373,10 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) static void u8_duplex(struct driver_data *drv_data) { + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + /* in duplex mode, clk is triggered by writing of TDBR */ while (drv_data->rx < drv_data->rx_end) { write_TDBR(*(u8 *) (drv_data->tx)); @@ -376,16 +388,16 @@ static void u8_duplex(struct driver_data *drv_data) ++drv_data->rx; ++drv_data->tx; } - - /* poll for SPI completion before returning */ - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; } static void u8_cs_chg_duplex(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + while (drv_data->rx < drv_data->rx_end) { cs_active(chip); @@ -402,10 +414,6 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) ++drv_data->rx; ++drv_data->tx; } - - /* poll for SPI completion before returning */ - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; } static void u16_writer(struct driver_data *drv_data) @@ -413,22 +421,26 @@ static void u16_writer(struct driver_data *drv_data) dev_dbg(&drv_data->pdev->dev, "cr16 is 0x%x\n", read_STAT()); + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + while (drv_data->tx < drv_data->tx_end) { write_TDBR(*(u16 *) (drv_data->tx)); while ((read_STAT() & BIT_STAT_TXS)) continue; drv_data->tx += 2; } - - /* poll for SPI completion before returning */ - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; } static void u16_cs_chg_writer(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + while (drv_data->tx < drv_data->tx_end) { cs_active(chip); @@ -441,10 +453,6 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) udelay(chip->cs_chg_udelay); drv_data->tx += 2; } - - /* poll for SPI completion before returning */ - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; } static void u16_reader(struct driver_data *drv_data) @@ -452,6 +460,10 @@ static void u16_reader(struct driver_data *drv_data) dev_dbg(&drv_data->pdev->dev, "cr-16 is 0x%x\n", read_STAT()); + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + /* clear TDBR buffer before read(else it will be shifted out) */ write_TDBR(0xFFFF); @@ -474,6 +486,10 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + /* clear TDBR buffer before read(else it will be shifted out) */ write_TDBR(0xFFFF); @@ -502,6 +518,10 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) static void u16_duplex(struct driver_data *drv_data) { + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + /* in duplex mode, clk is triggered by writing of TDBR */ while (drv_data->tx < drv_data->tx_end) { write_TDBR(*(u16 *) (drv_data->tx)); @@ -513,16 +533,16 @@ static void u16_duplex(struct driver_data *drv_data) drv_data->rx += 2; drv_data->tx += 2; } - - /* poll for SPI completion before returning */ - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; } static void u16_cs_chg_duplex(struct driver_data *drv_data) { struct chip_data *chip = drv_data->cur_chip; + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + while (drv_data->tx < drv_data->tx_end) { cs_active(chip); @@ -539,10 +559,6 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) drv_data->rx += 2; drv_data->tx += 2; } - - /* poll for SPI completion before returning */ - while (!(read_STAT() & BIT_STAT_SPIF)) - continue; } /* test if ther is more transfer to be done */ @@ -765,6 +781,10 @@ static void pump_transfers(unsigned long data) dma_width = WDSIZE_8; } + /* poll for SPI completion before start */ + while (!(read_STAT() & BIT_STAT_SPIF)) + continue; + /* dirty hack for autobuffer DMA mode */ if (drv_data->tx_dma == 0xFFFF) { dev_dbg(&drv_data->pdev->dev, -- cgit v1.2.3 From bb90eb00b6c28c8be5a69c6b58d5a6924f6f2ad7 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:18 -0800 Subject: spi: spi_bfin: handle multiple spi_masters Move global SPI regs_base and dma_ch to struct driver_data. Test on BF54x SPI Flash with 2 spi_master devices enabled. Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 371 +++++++++++++++++++++++----------------------- 1 file changed, 189 insertions(+), 182 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index c7cfd95fa8e..c4c4905e0aa 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -61,31 +61,14 @@ MODULE_AUTHOR(DRV_AUTHOR); MODULE_DESCRIPTION(DRV_DESC); MODULE_LICENSE("GPL"); -#define IS_DMA_ALIGNED(x) (((u32)(x)&0x07)==0) +#define IS_DMA_ALIGNED(x) (((u32)(x)&0x07) == 0) -static u32 spi_dma_ch; -static u32 spi_regs_base; - -#define DEFINE_SPI_REG(reg, off) \ -static inline u16 read_##reg(void) \ - { return bfin_read16(spi_regs_base + off); } \ -static inline void write_##reg(u16 v) \ - {bfin_write16(spi_regs_base + off, v); } - -DEFINE_SPI_REG(CTRL, 0x00) -DEFINE_SPI_REG(FLAG, 0x04) -DEFINE_SPI_REG(STAT, 0x08) -DEFINE_SPI_REG(TDBR, 0x0C) -DEFINE_SPI_REG(RDBR, 0x10) -DEFINE_SPI_REG(BAUD, 0x14) -DEFINE_SPI_REG(SHAW, 0x18) -#define START_STATE ((void*)0) -#define RUNNING_STATE ((void*)1) -#define DONE_STATE ((void*)2) -#define ERROR_STATE ((void*)-1) -#define QUEUE_RUNNING 0 -#define QUEUE_STOPPED 1 -int dma_requested; +#define START_STATE ((void *)0) +#define RUNNING_STATE ((void *)1) +#define DONE_STATE ((void *)2) +#define ERROR_STATE ((void *)-1) +#define QUEUE_RUNNING 0 +#define QUEUE_STOPPED 1 struct driver_data { /* Driver model hookup */ @@ -94,6 +77,9 @@ struct driver_data { /* SPI framework hookup */ struct spi_master *master; + /* Regs base of SPI controller */ + u32 regs_base; + /* BFIN hookup */ struct bfin5xx_spi_master *master_info; @@ -118,9 +104,14 @@ struct driver_data { void *tx_end; void *rx; void *rx_end; + + /* DMA stuffs */ + int dma_channel; int dma_mapped; + int dma_requested; dma_addr_t rx_dma; dma_addr_t tx_dma; + size_t rx_map_len; size_t tx_map_len; u8 n_bytes; @@ -147,20 +138,34 @@ struct chip_data { void (*duplex) (struct driver_data *); }; +#define DEFINE_SPI_REG(reg, off) \ +static inline u16 read_##reg(struct driver_data *drv_data) \ + { return bfin_read16(drv_data->regs_base + off); } \ +static inline void write_##reg(struct driver_data *drv_data, u16 v) \ + { bfin_write16(drv_data->regs_base + off, v); } + +DEFINE_SPI_REG(CTRL, 0x00) +DEFINE_SPI_REG(FLAG, 0x04) +DEFINE_SPI_REG(STAT, 0x08) +DEFINE_SPI_REG(TDBR, 0x0C) +DEFINE_SPI_REG(RDBR, 0x10) +DEFINE_SPI_REG(BAUD, 0x14) +DEFINE_SPI_REG(SHAW, 0x18) + static void bfin_spi_enable(struct driver_data *drv_data) { u16 cr; - cr = read_CTRL(); - write_CTRL(cr | BIT_CTL_ENABLE); + cr = read_CTRL(drv_data); + write_CTRL(drv_data, (cr | BIT_CTL_ENABLE)); } static void bfin_spi_disable(struct driver_data *drv_data) { u16 cr; - cr = read_CTRL(); - write_CTRL(cr & (~BIT_CTL_ENABLE)); + cr = read_CTRL(drv_data); + write_CTRL(drv_data, (cr & (~BIT_CTL_ENABLE))); } /* Caculate the SPI_BAUD register value based on input HZ */ @@ -180,32 +185,32 @@ static int flush(struct driver_data *drv_data) unsigned long limit = loops_per_jiffy << 1; /* wait for stop and clear stat */ - while (!(read_STAT() & BIT_STAT_SPIF) && limit--) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF) && limit--) continue; - write_STAT(BIT_STAT_CLR); + write_STAT(drv_data, BIT_STAT_CLR); return limit; } /* Chip select operation functions for cs_change flag */ -static void cs_active(struct chip_data *chip) +static void cs_active(struct driver_data *drv_data, struct chip_data *chip) { - u16 flag = read_FLAG(); + u16 flag = read_FLAG(drv_data); flag |= chip->flag; flag &= ~(chip->flag << 8); - write_FLAG(flag); + write_FLAG(drv_data, flag); } -static void cs_deactive(struct chip_data *chip) +static void cs_deactive(struct driver_data *drv_data, struct chip_data *chip) { - u16 flag = read_FLAG(); + u16 flag = read_FLAG(drv_data); flag |= (chip->flag << 8); - write_FLAG(flag); + write_FLAG(drv_data, flag); } #define MAX_SPI_SSEL 7 @@ -217,16 +222,16 @@ static int restore_state(struct driver_data *drv_data) int ret = 0; /* Clear status and disable clock */ - write_STAT(BIT_STAT_CLR); + write_STAT(drv_data, BIT_STAT_CLR); bfin_spi_disable(drv_data); dev_dbg(&drv_data->pdev->dev, "restoring spi ctl state\n"); /* Load the registers */ - cs_deactive(chip); - write_BAUD(chip->baud); + cs_deactive(drv_data, chip); + write_BAUD(drv_data, chip->baud); chip->ctl_reg &= (~BIT_CTL_TIMOD); chip->ctl_reg |= (chip->width << 8); - write_CTRL(chip->ctl_reg); + write_CTRL(drv_data, chip->ctl_reg); bfin_spi_enable(drv_data); @@ -239,10 +244,10 @@ static int restore_state(struct driver_data *drv_data) } /* used to kick off transfer in rx mode */ -static unsigned short dummy_read(void) +static unsigned short dummy_read(struct driver_data *drv_data) { unsigned short tmp; - tmp = read_RDBR(); + tmp = read_RDBR(drv_data); return tmp; } @@ -251,8 +256,8 @@ static void null_writer(struct driver_data *drv_data) u8 n_bytes = drv_data->n_bytes; while (drv_data->tx < drv_data->tx_end) { - write_TDBR(0); - while ((read_STAT() & BIT_STAT_TXS)) + write_TDBR(drv_data, 0); + while ((read_STAT(drv_data) & BIT_STAT_TXS)) continue; drv_data->tx += n_bytes; } @@ -261,12 +266,12 @@ static void null_writer(struct driver_data *drv_data) static void null_reader(struct driver_data *drv_data) { u8 n_bytes = drv_data->n_bytes; - dummy_read(); + dummy_read(drv_data); while (drv_data->rx < drv_data->rx_end) { - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - dummy_read(); + dummy_read(drv_data); drv_data->rx += n_bytes; } } @@ -274,15 +279,15 @@ static void null_reader(struct driver_data *drv_data) static void u8_writer(struct driver_data *drv_data) { dev_dbg(&drv_data->pdev->dev, - "cr8-s is 0x%x\n", read_STAT()); + "cr8-s is 0x%x\n", read_STAT(drv_data)); /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; while (drv_data->tx < drv_data->tx_end) { - write_TDBR(*(u8 *) (drv_data->tx)); - while (read_STAT() & BIT_STAT_TXS) + write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); + while (read_STAT(drv_data) & BIT_STAT_TXS) continue; ++drv_data->tx; } @@ -293,16 +298,16 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; while (drv_data->tx < drv_data->tx_end) { - cs_active(chip); + cs_active(drv_data, chip); - write_TDBR(*(u8 *) (drv_data->tx)); - while (read_STAT() & BIT_STAT_TXS) + write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); + while (read_STAT(drv_data) & BIT_STAT_TXS) continue; - cs_deactive(chip); + cs_deactive(drv_data, chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); @@ -313,27 +318,27 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) static void u8_reader(struct driver_data *drv_data) { dev_dbg(&drv_data->pdev->dev, - "cr-8 is 0x%x\n", read_STAT()); + "cr-8 is 0x%x\n", read_STAT(drv_data)); /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; /* clear TDBR buffer before read(else it will be shifted out) */ - write_TDBR(0xFFFF); + write_TDBR(drv_data, 0xFFFF); - dummy_read(); + dummy_read(drv_data); while (drv_data->rx < drv_data->rx_end - 1) { - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u8 *) (drv_data->rx) = read_RDBR(); + *(u8 *) (drv_data->rx) = read_RDBR(drv_data); ++drv_data->rx; } - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u8 *) (drv_data->rx) = read_SHAW(); + *(u8 *) (drv_data->rx) = read_SHAW(drv_data); ++drv_data->rx; } @@ -342,49 +347,49 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; /* clear TDBR buffer before read(else it will be shifted out) */ - write_TDBR(0xFFFF); + write_TDBR(drv_data, 0xFFFF); - cs_active(chip); - dummy_read(); + cs_active(drv_data, chip); + dummy_read(drv_data); while (drv_data->rx < drv_data->rx_end - 1) { - cs_deactive(chip); + cs_deactive(drv_data, chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - cs_active(chip); - *(u8 *) (drv_data->rx) = read_RDBR(); + cs_active(drv_data, chip); + *(u8 *) (drv_data->rx) = read_RDBR(drv_data); ++drv_data->rx; } - cs_deactive(chip); + cs_deactive(drv_data, chip); - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u8 *) (drv_data->rx) = read_SHAW(); + *(u8 *) (drv_data->rx) = read_SHAW(drv_data); ++drv_data->rx; } static void u8_duplex(struct driver_data *drv_data) { /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; /* in duplex mode, clk is triggered by writing of TDBR */ while (drv_data->rx < drv_data->rx_end) { - write_TDBR(*(u8 *) (drv_data->tx)); - while (read_STAT() & BIT_STAT_TXS) + write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); + while (read_STAT(drv_data) & BIT_STAT_TXS) continue; - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u8 *) (drv_data->rx) = read_RDBR(); + *(u8 *) (drv_data->rx) = read_RDBR(drv_data); ++drv_data->rx; ++drv_data->tx; } @@ -395,19 +400,19 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; while (drv_data->rx < drv_data->rx_end) { - cs_active(chip); + cs_active(drv_data, chip); - write_TDBR(*(u8 *) (drv_data->tx)); - while (read_STAT() & BIT_STAT_TXS) + write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); + while (read_STAT(drv_data) & BIT_STAT_TXS) continue; - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u8 *) (drv_data->rx) = read_RDBR(); - cs_deactive(chip); + *(u8 *) (drv_data->rx) = read_RDBR(drv_data); + cs_deactive(drv_data, chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); @@ -419,15 +424,15 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) static void u16_writer(struct driver_data *drv_data) { dev_dbg(&drv_data->pdev->dev, - "cr16 is 0x%x\n", read_STAT()); + "cr16 is 0x%x\n", read_STAT(drv_data)); /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; while (drv_data->tx < drv_data->tx_end) { - write_TDBR(*(u16 *) (drv_data->tx)); - while ((read_STAT() & BIT_STAT_TXS)) + write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); + while ((read_STAT(drv_data) & BIT_STAT_TXS)) continue; drv_data->tx += 2; } @@ -438,16 +443,16 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; while (drv_data->tx < drv_data->tx_end) { - cs_active(chip); + cs_active(drv_data, chip); - write_TDBR(*(u16 *) (drv_data->tx)); - while ((read_STAT() & BIT_STAT_TXS)) + write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); + while ((read_STAT(drv_data) & BIT_STAT_TXS)) continue; - cs_deactive(chip); + cs_deactive(drv_data, chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); @@ -458,27 +463,27 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) static void u16_reader(struct driver_data *drv_data) { dev_dbg(&drv_data->pdev->dev, - "cr-16 is 0x%x\n", read_STAT()); + "cr-16 is 0x%x\n", read_STAT(drv_data)); /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; /* clear TDBR buffer before read(else it will be shifted out) */ - write_TDBR(0xFFFF); + write_TDBR(drv_data, 0xFFFF); - dummy_read(); + dummy_read(drv_data); while (drv_data->rx < (drv_data->rx_end - 2)) { - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u16 *) (drv_data->rx) = read_RDBR(); + *(u16 *) (drv_data->rx) = read_RDBR(drv_data); drv_data->rx += 2; } - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u16 *) (drv_data->rx) = read_SHAW(); + *(u16 *) (drv_data->rx) = read_SHAW(drv_data); drv_data->rx += 2; } @@ -487,49 +492,49 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; /* clear TDBR buffer before read(else it will be shifted out) */ - write_TDBR(0xFFFF); + write_TDBR(drv_data, 0xFFFF); - cs_active(chip); - dummy_read(); + cs_active(drv_data, chip); + dummy_read(drv_data); while (drv_data->rx < drv_data->rx_end) { - cs_deactive(chip); + cs_deactive(drv_data, chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - cs_active(chip); - *(u16 *) (drv_data->rx) = read_RDBR(); + cs_active(drv_data, chip); + *(u16 *) (drv_data->rx) = read_RDBR(drv_data); drv_data->rx += 2; } - cs_deactive(chip); + cs_deactive(drv_data, chip); - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u16 *) (drv_data->rx) = read_SHAW(); + *(u16 *) (drv_data->rx) = read_SHAW(drv_data); drv_data->rx += 2; } static void u16_duplex(struct driver_data *drv_data) { /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; /* in duplex mode, clk is triggered by writing of TDBR */ while (drv_data->tx < drv_data->tx_end) { - write_TDBR(*(u16 *) (drv_data->tx)); - while (read_STAT() & BIT_STAT_TXS) + write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); + while (read_STAT(drv_data) & BIT_STAT_TXS) continue; - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u16 *) (drv_data->rx) = read_RDBR(); + *(u16 *) (drv_data->rx) = read_RDBR(drv_data); drv_data->rx += 2; drv_data->tx += 2; } @@ -540,19 +545,19 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) struct chip_data *chip = drv_data->cur_chip; /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; while (drv_data->tx < drv_data->tx_end) { - cs_active(chip); + cs_active(drv_data, chip); - write_TDBR(*(u16 *) (drv_data->tx)); - while (read_STAT() & BIT_STAT_TXS) + write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); + while (read_STAT(drv_data) & BIT_STAT_TXS) continue; - while (!(read_STAT() & BIT_STAT_RXS)) + while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; - *(u16 *) (drv_data->rx) = read_RDBR(); - cs_deactive(chip); + *(u16 *) (drv_data->rx) = read_RDBR(drv_data); + cs_deactive(drv_data, chip); if (chip->cs_chg_udelay) udelay(chip->cs_chg_udelay); @@ -603,12 +608,12 @@ static void giveback(struct driver_data *drv_data) /* disable chip select signal. And not stop spi in autobuffer mode */ if (drv_data->tx_dma != 0xFFFF) { - cs_deactive(chip); + cs_deactive(drv_data, chip); bfin_spi_disable(drv_data); } if (!drv_data->cs_change) - cs_deactive(chip); + cs_deactive(drv_data, chip); if (msg->complete) msg->complete(msg->context); @@ -617,14 +622,14 @@ static void giveback(struct driver_data *drv_data) static irqreturn_t dma_irq_handler(int irq, void *dev_id) { struct driver_data *drv_data = (struct driver_data *)dev_id; - struct spi_message *msg = drv_data->cur_msg; struct chip_data *chip = drv_data->cur_chip; + struct spi_message *msg = drv_data->cur_msg; dev_dbg(&drv_data->pdev->dev, "in dma_irq_handler\n"); - clear_dma_irqstat(spi_dma_ch); + clear_dma_irqstat(drv_data->dma_channel); /* Wait for DMA to complete */ - while (get_dma_curr_irqstat(spi_dma_ch) & DMA_RUN) + while (get_dma_curr_irqstat(drv_data->dma_channel) & DMA_RUN) continue; /* @@ -634,18 +639,18 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) * register until it goes low for 2 successive reads */ if (drv_data->tx != NULL) { - while ((read_STAT() & TXS) || - (read_STAT() & TXS)) + while ((read_STAT(drv_data) & TXS) || + (read_STAT(drv_data) & TXS)) continue; } - while (!(read_STAT() & SPIF)) + while (!(read_STAT(drv_data) & SPIF)) continue; msg->actual_length += drv_data->len_in_bytes; if (drv_data->cs_change) - cs_deactive(chip); + cs_deactive(drv_data, chip); /* Move to next transfer */ msg->state = next_transfer(drv_data); @@ -656,8 +661,8 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) /* free the irq handler before next transfer */ dev_dbg(&drv_data->pdev->dev, "disable dma channel irq%d\n", - spi_dma_ch); - dma_disable_irq(spi_dma_ch); + drv_data->dma_channel); + dma_disable_irq(drv_data->dma_channel); return IRQ_HANDLED; } @@ -751,9 +756,9 @@ static void pump_transfers(unsigned long data) message->state = RUNNING_STATE; dma_config = 0; - write_STAT(BIT_STAT_CLR); - cr = (read_CTRL() & (~BIT_CTL_TIMOD)); - cs_active(chip); + write_STAT(drv_data, BIT_STAT_CLR); + cr = (read_CTRL(drv_data) & (~BIT_CTL_TIMOD)); + cs_active(drv_data, chip); dev_dbg(&drv_data->pdev->dev, "now pumping a transfer: width is %d, len is %d\n", @@ -766,23 +771,23 @@ static void pump_transfers(unsigned long data) */ if (drv_data->cur_chip->enable_dma && drv_data->len > 6) { - disable_dma(spi_dma_ch); - clear_dma_irqstat(spi_dma_ch); + disable_dma(drv_data->dma_channel); + clear_dma_irqstat(drv_data->dma_channel); /* config dma channel */ dev_dbg(&drv_data->pdev->dev, "doing dma transfer\n"); if (width == CFG_SPI_WORDSIZE16) { - set_dma_x_count(spi_dma_ch, drv_data->len); - set_dma_x_modify(spi_dma_ch, 2); + set_dma_x_count(drv_data->dma_channel, drv_data->len); + set_dma_x_modify(drv_data->dma_channel, 2); dma_width = WDSIZE_16; } else { - set_dma_x_count(spi_dma_ch, drv_data->len); - set_dma_x_modify(spi_dma_ch, 1); + set_dma_x_count(drv_data->dma_channel, drv_data->len); + set_dma_x_modify(drv_data->dma_channel, 1); dma_width = WDSIZE_8; } /* poll for SPI completion before start */ - while (!(read_STAT() & BIT_STAT_SPIF)) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) continue; /* dirty hack for autobuffer DMA mode */ @@ -791,15 +796,15 @@ static void pump_transfers(unsigned long data) "doing autobuffer DMA out.\n"); /* set SPI transfer mode */ - write_CTRL(cr | CFG_SPI_DMAWRITE); + write_CTRL(drv_data, (cr | CFG_SPI_DMAWRITE)); /* no irq in autobuffer mode */ dma_config = (DMAFLOW_AUTO | RESTART | dma_width | DI_EN); - set_dma_config(spi_dma_ch, dma_config); - set_dma_start_addr(spi_dma_ch, + set_dma_config(drv_data->dma_channel, dma_config); + set_dma_start_addr(drv_data->dma_channel, (unsigned long)drv_data->tx); - enable_dma(spi_dma_ch); + enable_dma(drv_data->dma_channel); /* just return here, there can only be one transfer in this mode */ message->status = 0; @@ -813,34 +818,34 @@ static void pump_transfers(unsigned long data) dev_dbg(&drv_data->pdev->dev, "doing DMA in.\n"); /* set SPI transfer mode */ - write_CTRL(cr | CFG_SPI_DMAREAD); + write_CTRL(drv_data, (cr | CFG_SPI_DMAREAD)); /* clear tx reg soformer data is not shifted out */ - write_TDBR(0xFFFF); + write_TDBR(drv_data, 0xFFFF); - set_dma_x_count(spi_dma_ch, drv_data->len); + set_dma_x_count(drv_data->dma_channel, drv_data->len); /* start dma */ - dma_enable_irq(spi_dma_ch); + dma_enable_irq(drv_data->dma_channel); dma_config = (WNR | RESTART | dma_width | DI_EN); - set_dma_config(spi_dma_ch, dma_config); - set_dma_start_addr(spi_dma_ch, + set_dma_config(drv_data->dma_channel, dma_config); + set_dma_start_addr(drv_data->dma_channel, (unsigned long)drv_data->rx); - enable_dma(spi_dma_ch); + enable_dma(drv_data->dma_channel); } else if (drv_data->tx != NULL) { dev_dbg(&drv_data->pdev->dev, "doing DMA out.\n"); /* set SPI transfer mode */ - write_CTRL(cr | CFG_SPI_DMAWRITE); + write_CTRL(drv_data, (cr | CFG_SPI_DMAWRITE)); /* start dma */ - dma_enable_irq(spi_dma_ch); + dma_enable_irq(drv_data->dma_channel); dma_config = (RESTART | dma_width | DI_EN); - set_dma_config(spi_dma_ch, dma_config); - set_dma_start_addr(spi_dma_ch, + set_dma_config(drv_data->dma_channel, dma_config); + set_dma_start_addr(drv_data->dma_channel, (unsigned long)drv_data->tx); - enable_dma(spi_dma_ch); + enable_dma(drv_data->dma_channel); } } else { /* IO mode write then read */ @@ -854,7 +859,7 @@ static void pump_transfers(unsigned long data) "IO duplex: cr is 0x%x\n", cr); /* set SPI transfer mode */ - write_CTRL(cr | CFG_SPI_WRITE); + write_CTRL(drv_data, (cr | CFG_SPI_WRITE)); drv_data->duplex(drv_data); @@ -866,7 +871,7 @@ static void pump_transfers(unsigned long data) "IO write: cr is 0x%x\n", cr); /* set SPI transfer mode */ - write_CTRL(cr | CFG_SPI_WRITE); + write_CTRL(drv_data, (cr | CFG_SPI_WRITE)); drv_data->write(drv_data); @@ -878,7 +883,7 @@ static void pump_transfers(unsigned long data) "IO read: cr is 0x%x\n", cr); /* set SPI transfer mode */ - write_CTRL(cr | CFG_SPI_READ); + write_CTRL(drv_data, (cr | CFG_SPI_READ)); drv_data->read(drv_data); if (drv_data->rx != drv_data->rx_end) @@ -1075,20 +1080,20 @@ static int setup(struct spi_device *spi) * if any one SPI chip is registered and wants DMA, request the * DMA channel for it */ - if (chip->enable_dma && !dma_requested) { + if (chip->enable_dma && !drv_data->dma_requested) { /* register dma irq handler */ - if (request_dma(spi_dma_ch, "BF53x_SPI_DMA") < 0) { + if (request_dma(drv_data->dma_channel, "BF53x_SPI_DMA") < 0) { dev_dbg(&spi->dev, "Unable to request BlackFin SPI DMA channel\n"); return -ENODEV; } - if (set_dma_callback(spi_dma_ch, (void *)dma_irq_handler, - drv_data) < 0) { + if (set_dma_callback(drv_data->dma_channel, + (void *)dma_irq_handler, drv_data) < 0) { dev_dbg(&spi->dev, "Unable to set dma callback\n"); return -EPERM; } - dma_disable_irq(spi_dma_ch); - dma_requested = 1; + dma_disable_irq(drv_data->dma_channel); + drv_data->dma_requested = 1; } /* @@ -1304,15 +1309,16 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) goto out_error_get_res; } - spi_regs_base = (u32) ioremap(res->start, (res->end - res->start)+1); - if (!spi_regs_base) { + drv_data->regs_base = (u32) ioremap(res->start, + (res->end - res->start + 1)); + if (!drv_data->regs_base) { dev_err(dev, "Cannot map IO\n"); status = -ENXIO; goto out_error_ioremap; } - spi_dma_ch = platform_get_irq(pdev, 0); - if (spi_dma_ch < 0) { + drv_data->dma_channel = platform_get_irq(pdev, 0); + if (drv_data->dma_channel < 0) { dev_err(dev, "No DMA channel specified\n"); status = -ENOENT; goto out_error_no_dma_ch; @@ -1344,14 +1350,15 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) goto out_error; } - dev_info(dev, "%s, Version %s, regs_base @ 0x%08x\n", - DRV_DESC, DRV_VERSION, spi_regs_base); + dev_info(dev, "%s, Version %s, regs_base@0x%08x, dma channel@%d\n", + DRV_DESC, DRV_VERSION, drv_data->regs_base, + drv_data->dma_channel); return status; out_error_queue_alloc: destroy_queue(drv_data); out_error_no_dma_ch: - iounmap((void *) spi_regs_base); + iounmap((void *) drv_data->regs_base); out_error_ioremap: out_error_get_res: out_error: @@ -1379,8 +1386,8 @@ static int __devexit bfin5xx_spi_remove(struct platform_device *pdev) /* Release DMA */ if (drv_data->master_info->enable_dma) { - if (dma_channel_active(spi_dma_ch)) - free_dma(spi_dma_ch); + if (dma_channel_active(drv_data->dma_channel)) + free_dma(drv_data->dma_channel); } /* Disconnect from the SPI framework */ -- cgit v1.2.3 From c3061abb9e95920407288cba143dc1af0babf099 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:19 -0800 Subject: spi: spi_bfin: bugfix for 8..16 bit word sizes Fix bug in u16_cs_chg_reader to read data_len-2 bytes data firstly, then read out the last 2 bytes data Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index c4c4905e0aa..25b0efc5910 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -501,7 +501,7 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) cs_active(drv_data, chip); dummy_read(drv_data); - while (drv_data->rx < drv_data->rx_end) { + while (drv_data->rx < drv_data->rx_end - 2) { cs_deactive(drv_data, chip); if (chip->cs_chg_udelay) -- cgit v1.2.3 From 62310e51ac10c5e50998240e49a84d2e28377a48 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:20 -0800 Subject: spi: spi_bfin: update handling of delay-after-deselect Move cs_chg_udelay handling (specific to this driver) to cs_deactive(), fixing a bug when some SPI LCD driver needs delay after cs_deactive. Fix bug reported by Cameron Barfield https://blackfin.uclinux.org/gf/project/uclinux-dist/forum/?action=ForumBrowse&forum_id=39&_forum_action=ForumMessageBrowse&thread_id=23630&feedback=Message%20replied. Cc: Cameron Barfield Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 24 +++++++++--------------- 1 file changed, 9 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 25b0efc5910..4dc7e674932 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -132,7 +132,7 @@ struct chip_data { u8 enable_dma; u8 bits_per_word; /* 8 or 16 */ u8 cs_change_per_word; - u8 cs_chg_udelay; + u16 cs_chg_udelay; /* Some devices require > 255usec delay */ void (*write) (struct driver_data *); void (*read) (struct driver_data *); void (*duplex) (struct driver_data *); @@ -211,6 +211,10 @@ static void cs_deactive(struct driver_data *drv_data, struct chip_data *chip) flag |= (chip->flag << 8); write_FLAG(drv_data, flag); + + /* Move delay here for consistency */ + if (chip->cs_chg_udelay) + udelay(chip->cs_chg_udelay); } #define MAX_SPI_SSEL 7 @@ -307,10 +311,9 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); while (read_STAT(drv_data) & BIT_STAT_TXS) continue; + cs_deactive(drv_data, chip); - if (chip->cs_chg_udelay) - udelay(chip->cs_chg_udelay); ++drv_data->tx; } } @@ -359,9 +362,6 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) while (drv_data->rx < drv_data->rx_end - 1) { cs_deactive(drv_data, chip); - if (chip->cs_chg_udelay) - udelay(chip->cs_chg_udelay); - while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; cs_active(drv_data, chip); @@ -412,10 +412,9 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; *(u8 *) (drv_data->rx) = read_RDBR(drv_data); + cs_deactive(drv_data, chip); - if (chip->cs_chg_udelay) - udelay(chip->cs_chg_udelay); ++drv_data->rx; ++drv_data->tx; } @@ -452,10 +451,9 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); while ((read_STAT(drv_data) & BIT_STAT_TXS)) continue; + cs_deactive(drv_data, chip); - if (chip->cs_chg_udelay) - udelay(chip->cs_chg_udelay); drv_data->tx += 2; } } @@ -504,9 +502,6 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) while (drv_data->rx < drv_data->rx_end - 2) { cs_deactive(drv_data, chip); - if (chip->cs_chg_udelay) - udelay(chip->cs_chg_udelay); - while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; cs_active(drv_data, chip); @@ -557,10 +552,9 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) while (!(read_STAT(drv_data) & BIT_STAT_RXS)) continue; *(u16 *) (drv_data->rx) = read_RDBR(drv_data); + cs_deactive(drv_data, chip); - if (chip->cs_chg_udelay) - udelay(chip->cs_chg_udelay); drv_data->rx += 2; drv_data->tx += 2; } -- cgit v1.2.3 From 07612e5f224613020c0ba17ce28e8eac052ef8ce Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Tue, 4 Dec 2007 23:45:21 -0800 Subject: spi: spi_bfin: resequence DMA start/stop Set correct baud for spi mmc and enable SPI only after DMA is started. Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 4dc7e674932..a85bcb30659 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -231,13 +231,13 @@ static int restore_state(struct driver_data *drv_data) dev_dbg(&drv_data->pdev->dev, "restoring spi ctl state\n"); /* Load the registers */ - cs_deactive(drv_data, chip); write_BAUD(drv_data, chip->baud); chip->ctl_reg &= (~BIT_CTL_TIMOD); chip->ctl_reg |= (chip->width << 8); write_CTRL(drv_data, chip->ctl_reg); bfin_spi_enable(drv_data); + cs_active(drv_data, chip); if (ret) dev_dbg(&drv_data->pdev->dev, @@ -767,6 +767,7 @@ static void pump_transfers(unsigned long data) disable_dma(drv_data->dma_channel); clear_dma_irqstat(drv_data->dma_channel); + bfin_spi_disable(drv_data); /* config dma channel */ dev_dbg(&drv_data->pdev->dev, "doing dma transfer\n"); @@ -789,9 +790,6 @@ static void pump_transfers(unsigned long data) dev_dbg(&drv_data->pdev->dev, "doing autobuffer DMA out.\n"); - /* set SPI transfer mode */ - write_CTRL(drv_data, (cr | CFG_SPI_DMAWRITE)); - /* no irq in autobuffer mode */ dma_config = (DMAFLOW_AUTO | RESTART | dma_width | DI_EN); @@ -800,7 +798,13 @@ static void pump_transfers(unsigned long data) (unsigned long)drv_data->tx); enable_dma(drv_data->dma_channel); - /* just return here, there can only be one transfer in this mode */ + /* start SPI transfer */ + write_CTRL(drv_data, + (cr | CFG_SPI_DMAWRITE | BIT_CTL_ENABLE)); + + /* just return here, there can only be one transfer + * in this mode + */ message->status = 0; giveback(drv_data); return; @@ -811,9 +815,6 @@ static void pump_transfers(unsigned long data) /* set transfer mode, and enable SPI */ dev_dbg(&drv_data->pdev->dev, "doing DMA in.\n"); - /* set SPI transfer mode */ - write_CTRL(drv_data, (cr | CFG_SPI_DMAREAD)); - /* clear tx reg soformer data is not shifted out */ write_TDBR(drv_data, 0xFFFF); @@ -827,12 +828,13 @@ static void pump_transfers(unsigned long data) (unsigned long)drv_data->rx); enable_dma(drv_data->dma_channel); + /* start SPI transfer */ + write_CTRL(drv_data, + (cr | CFG_SPI_DMAREAD | BIT_CTL_ENABLE)); + } else if (drv_data->tx != NULL) { dev_dbg(&drv_data->pdev->dev, "doing DMA out.\n"); - /* set SPI transfer mode */ - write_CTRL(drv_data, (cr | CFG_SPI_DMAWRITE)); - /* start dma */ dma_enable_irq(drv_data->dma_channel); dma_config = (RESTART | dma_width | DI_EN); @@ -840,6 +842,10 @@ static void pump_transfers(unsigned long data) set_dma_start_addr(drv_data->dma_channel, (unsigned long)drv_data->tx); enable_dma(drv_data->dma_channel); + + /* start SPI transfer */ + write_CTRL(drv_data, + (cr | CFG_SPI_DMAWRITE | BIT_CTL_ENABLE)); } } else { /* IO mode write then read */ @@ -1142,6 +1148,8 @@ static int setup(struct spi_device *spi) peripheral_request(ssel[spi->master->bus_num] [chip->chip_select_num-1], DRV_NAME); + cs_deactive(drv_data, chip); + return 0; } -- cgit v1.2.3 From d8c05008b0e464c94967ed2f20d1d661fca6790e Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:21 -0800 Subject: Blackfin SPI driver: use cpu_relax() to replace continue in while busywait Signed-off-by: Bryan Wu Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 78 +++++++++++++++++++++++------------------------ 1 file changed, 39 insertions(+), 39 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index a85bcb30659..0e33b5aa35f 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -186,7 +186,7 @@ static int flush(struct driver_data *drv_data) /* wait for stop and clear stat */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF) && limit--) - continue; + cpu_relax(); write_STAT(drv_data, BIT_STAT_CLR); @@ -262,7 +262,7 @@ static void null_writer(struct driver_data *drv_data) while (drv_data->tx < drv_data->tx_end) { write_TDBR(drv_data, 0); while ((read_STAT(drv_data) & BIT_STAT_TXS)) - continue; + cpu_relax(); drv_data->tx += n_bytes; } } @@ -274,7 +274,7 @@ static void null_reader(struct driver_data *drv_data) while (drv_data->rx < drv_data->rx_end) { while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); dummy_read(drv_data); drv_data->rx += n_bytes; } @@ -287,12 +287,12 @@ static void u8_writer(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); while (drv_data->tx < drv_data->tx_end) { write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); while (read_STAT(drv_data) & BIT_STAT_TXS) - continue; + cpu_relax(); ++drv_data->tx; } } @@ -303,14 +303,14 @@ static void u8_cs_chg_writer(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); while (drv_data->tx < drv_data->tx_end) { cs_active(drv_data, chip); write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); while (read_STAT(drv_data) & BIT_STAT_TXS) - continue; + cpu_relax(); cs_deactive(drv_data, chip); @@ -325,7 +325,7 @@ static void u8_reader(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); /* clear TDBR buffer before read(else it will be shifted out) */ write_TDBR(drv_data, 0xFFFF); @@ -334,13 +334,13 @@ static void u8_reader(struct driver_data *drv_data) while (drv_data->rx < drv_data->rx_end - 1) { while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u8 *) (drv_data->rx) = read_RDBR(drv_data); ++drv_data->rx; } while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u8 *) (drv_data->rx) = read_SHAW(drv_data); ++drv_data->rx; } @@ -351,7 +351,7 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); /* clear TDBR buffer before read(else it will be shifted out) */ write_TDBR(drv_data, 0xFFFF); @@ -363,7 +363,7 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) cs_deactive(drv_data, chip); while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); cs_active(drv_data, chip); *(u8 *) (drv_data->rx) = read_RDBR(drv_data); ++drv_data->rx; @@ -371,7 +371,7 @@ static void u8_cs_chg_reader(struct driver_data *drv_data) cs_deactive(drv_data, chip); while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u8 *) (drv_data->rx) = read_SHAW(drv_data); ++drv_data->rx; } @@ -380,15 +380,15 @@ static void u8_duplex(struct driver_data *drv_data) { /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); /* in duplex mode, clk is triggered by writing of TDBR */ while (drv_data->rx < drv_data->rx_end) { write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); while (read_STAT(drv_data) & BIT_STAT_TXS) - continue; + cpu_relax(); while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u8 *) (drv_data->rx) = read_RDBR(drv_data); ++drv_data->rx; ++drv_data->tx; @@ -401,16 +401,16 @@ static void u8_cs_chg_duplex(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); while (drv_data->rx < drv_data->rx_end) { cs_active(drv_data, chip); write_TDBR(drv_data, (*(u8 *) (drv_data->tx))); while (read_STAT(drv_data) & BIT_STAT_TXS) - continue; + cpu_relax(); while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u8 *) (drv_data->rx) = read_RDBR(drv_data); cs_deactive(drv_data, chip); @@ -427,12 +427,12 @@ static void u16_writer(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); while (drv_data->tx < drv_data->tx_end) { write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); while ((read_STAT(drv_data) & BIT_STAT_TXS)) - continue; + cpu_relax(); drv_data->tx += 2; } } @@ -443,14 +443,14 @@ static void u16_cs_chg_writer(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); while (drv_data->tx < drv_data->tx_end) { cs_active(drv_data, chip); write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); while ((read_STAT(drv_data) & BIT_STAT_TXS)) - continue; + cpu_relax(); cs_deactive(drv_data, chip); @@ -465,7 +465,7 @@ static void u16_reader(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); /* clear TDBR buffer before read(else it will be shifted out) */ write_TDBR(drv_data, 0xFFFF); @@ -474,13 +474,13 @@ static void u16_reader(struct driver_data *drv_data) while (drv_data->rx < (drv_data->rx_end - 2)) { while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u16 *) (drv_data->rx) = read_RDBR(drv_data); drv_data->rx += 2; } while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u16 *) (drv_data->rx) = read_SHAW(drv_data); drv_data->rx += 2; } @@ -491,7 +491,7 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); /* clear TDBR buffer before read(else it will be shifted out) */ write_TDBR(drv_data, 0xFFFF); @@ -503,7 +503,7 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) cs_deactive(drv_data, chip); while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); cs_active(drv_data, chip); *(u16 *) (drv_data->rx) = read_RDBR(drv_data); drv_data->rx += 2; @@ -511,7 +511,7 @@ static void u16_cs_chg_reader(struct driver_data *drv_data) cs_deactive(drv_data, chip); while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u16 *) (drv_data->rx) = read_SHAW(drv_data); drv_data->rx += 2; } @@ -520,15 +520,15 @@ static void u16_duplex(struct driver_data *drv_data) { /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); /* in duplex mode, clk is triggered by writing of TDBR */ while (drv_data->tx < drv_data->tx_end) { write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); while (read_STAT(drv_data) & BIT_STAT_TXS) - continue; + cpu_relax(); while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u16 *) (drv_data->rx) = read_RDBR(drv_data); drv_data->rx += 2; drv_data->tx += 2; @@ -541,16 +541,16 @@ static void u16_cs_chg_duplex(struct driver_data *drv_data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); while (drv_data->tx < drv_data->tx_end) { cs_active(drv_data, chip); write_TDBR(drv_data, (*(u16 *) (drv_data->tx))); while (read_STAT(drv_data) & BIT_STAT_TXS) - continue; + cpu_relax(); while (!(read_STAT(drv_data) & BIT_STAT_RXS)) - continue; + cpu_relax(); *(u16 *) (drv_data->rx) = read_RDBR(drv_data); cs_deactive(drv_data, chip); @@ -624,7 +624,7 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) /* Wait for DMA to complete */ while (get_dma_curr_irqstat(drv_data->dma_channel) & DMA_RUN) - continue; + cpu_relax(); /* * wait for the last transaction shifted out. HRM states: @@ -635,11 +635,11 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) if (drv_data->tx != NULL) { while ((read_STAT(drv_data) & TXS) || (read_STAT(drv_data) & TXS)) - continue; + cpu_relax(); } while (!(read_STAT(drv_data) & SPIF)) - continue; + cpu_relax(); msg->actual_length += drv_data->len_in_bytes; @@ -783,7 +783,7 @@ static void pump_transfers(unsigned long data) /* poll for SPI completion before start */ while (!(read_STAT(drv_data) & BIT_STAT_SPIF)) - continue; + cpu_relax(); /* dirty hack for autobuffer DMA mode */ if (drv_data->tx_dma == 0xFFFF) { -- cgit v1.2.3 From f452126c2e4b8bbfd8e41ebdf1e734e3bf18f8e9 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:22 -0800 Subject: Blackfin SPI driver: use void __iomem * for regs_base Signed-off-by: Bryan Wu Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 0e33b5aa35f..6a02bd3ef9f 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -78,7 +78,7 @@ struct driver_data { struct spi_master *master; /* Regs base of SPI controller */ - u32 regs_base; + void __iomem *regs_base; /* BFIN hookup */ struct bfin5xx_spi_master *master_info; @@ -1311,9 +1311,8 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) goto out_error_get_res; } - drv_data->regs_base = (u32) ioremap(res->start, - (res->end - res->start + 1)); - if (!drv_data->regs_base) { + drv_data->regs_base = ioremap(res->start, (res->end - res->start + 1)); + if (drv_data->regs_base == NULL) { dev_err(dev, "Cannot map IO\n"); status = -ENXIO; goto out_error_ioremap; @@ -1352,7 +1351,7 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) goto out_error; } - dev_info(dev, "%s, Version %s, regs_base@0x%08x, dma channel@%d\n", + dev_info(dev, "%s, Version %s, regs_base@%p, dma channel@%d\n", DRV_DESC, DRV_VERSION, drv_data->regs_base, drv_data->dma_channel); return status; -- cgit v1.2.3 From 003d922618150eaab53936f57ba8a61f2b601486 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:22 -0800 Subject: Blackfin SPI driver: move hard coded pin_req to board file Remove some sort of bloaty code, try to get these pin_req arrays built at compile-time - move this static things to the blackfin board file - add pin_req array to struct bfin5xx_spi_master - tested on BF537/BF548 with SPI flash Signed-off-by: Bryan Wu Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 28 +++++++--------------------- 1 file changed, 7 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 6a02bd3ef9f..d6e9812538c 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -80,6 +80,9 @@ struct driver_data { /* Regs base of SPI controller */ void __iomem *regs_base; + /* Pin request list */ + u16 *pin_req; + /* BFIN hookup */ struct bfin5xx_spi_master *master_info; @@ -1255,25 +1258,6 @@ static inline int destroy_queue(struct driver_data *drv_data) return 0; } -static int setup_pin_mux(int action, int bus_num) -{ - - u16 pin_req[3][4] = { - {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0}, - {P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0}, - {P_SPI2_SCK, P_SPI2_MISO, P_SPI2_MOSI, 0}, - }; - - if (action) { - if (peripheral_request_list(pin_req[bus_num], DRV_NAME)) - return -EFAULT; - } else { - peripheral_free_list(pin_req[bus_num]); - } - - return 0; -} - static int __init bfin5xx_spi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1296,6 +1280,7 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) drv_data->master = master; drv_data->master_info = platform_info; drv_data->pdev = pdev; + drv_data->pin_req = platform_info->pin_req; master->bus_num = pdev->id; master->num_chipselect = platform_info->num_chipselect; @@ -1346,7 +1331,8 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev) goto out_error_queue_alloc; } - if (setup_pin_mux(1, master->bus_num)) { + status = peripheral_request_list(drv_data->pin_req, DRV_NAME); + if (status != 0) { dev_err(&pdev->dev, ": Requesting Peripherals failed\n"); goto out_error; } @@ -1394,7 +1380,7 @@ static int __devexit bfin5xx_spi_remove(struct platform_device *pdev) /* Disconnect from the SPI framework */ spi_unregister_master(drv_data->master); - setup_pin_mux(0, drv_data->master->bus_num); + peripheral_free_list(drv_data->pin_req); /* Prevent double remove */ platform_set_drvdata(pdev, NULL); -- cgit v1.2.3 From 092e1fdaf35126475aef0dc70f4a2ce4f2f43052 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Tue, 4 Dec 2007 23:45:23 -0800 Subject: Blackfin SPI driver: reconfigure speed_hz and bits_per_word in each spi transfer - reconfigure SPI baud from speed_hz of each spi transfer - according to spi_transfer.bits_per_word to reprogram register and setup correct SPI operation handlers Signed-off-by: Bryan Wu Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bfin5xx.c | 52 ++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 45 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index d6e9812538c..22697b81220 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -234,10 +234,8 @@ static int restore_state(struct driver_data *drv_data) dev_dbg(&drv_data->pdev->dev, "restoring spi ctl state\n"); /* Load the registers */ - write_BAUD(drv_data, chip->baud); - chip->ctl_reg &= (~BIT_CTL_TIMOD); - chip->ctl_reg |= (chip->width << 8); write_CTRL(drv_data, chip->ctl_reg); + write_BAUD(drv_data, chip->baud); bfin_spi_enable(drv_data); cs_active(drv_data, chip); @@ -679,6 +677,7 @@ static void pump_transfers(unsigned long data) message = drv_data->cur_msg; transfer = drv_data->cur_transfer; chip = drv_data->cur_chip; + /* * if msg is error or done, report it back using complete() callback */ @@ -736,15 +735,48 @@ static void pump_transfers(unsigned long data) drv_data->len_in_bytes = transfer->len; drv_data->cs_change = transfer->cs_change; - width = chip->width; + /* Bits per word setup */ + switch (transfer->bits_per_word) { + case 8: + drv_data->n_bytes = 1; + width = CFG_SPI_WORDSIZE8; + drv_data->read = chip->cs_change_per_word ? + u8_cs_chg_reader : u8_reader; + drv_data->write = chip->cs_change_per_word ? + u8_cs_chg_writer : u8_writer; + drv_data->duplex = chip->cs_change_per_word ? + u8_cs_chg_duplex : u8_duplex; + break; + + case 16: + drv_data->n_bytes = 2; + width = CFG_SPI_WORDSIZE16; + drv_data->read = chip->cs_change_per_word ? + u16_cs_chg_reader : u16_reader; + drv_data->write = chip->cs_change_per_word ? + u16_cs_chg_writer : u16_writer; + drv_data->duplex = chip->cs_change_per_word ? + u16_cs_chg_duplex : u16_duplex; + break; + + default: + /* No change, the same as default setting */ + drv_data->n_bytes = chip->n_bytes; + width = chip->width; + drv_data->write = drv_data->tx ? chip->write : null_writer; + drv_data->read = drv_data->rx ? chip->read : null_reader; + drv_data->duplex = chip->duplex ? chip->duplex : null_writer; + break; + } + cr = (read_CTRL(drv_data) & (~BIT_CTL_TIMOD)); + cr |= (width << 8); + write_CTRL(drv_data, cr); + if (width == CFG_SPI_WORDSIZE16) { drv_data->len = (transfer->len) >> 1; } else { drv_data->len = transfer->len; } - drv_data->write = drv_data->tx ? chip->write : null_writer; - drv_data->read = drv_data->rx ? chip->read : null_reader; - drv_data->duplex = chip->duplex ? chip->duplex : null_writer; dev_dbg(&drv_data->pdev->dev, "transfer: ", "drv_data->write is %p, chip->write is %p, null_wr is %p\n", drv_data->write, chip->write, null_writer); @@ -753,6 +785,12 @@ static void pump_transfers(unsigned long data) message->state = RUNNING_STATE; dma_config = 0; + /* Speed setup (surely valid because already checked) */ + if (transfer->speed_hz) + write_BAUD(drv_data, hz_to_spi_baud(transfer->speed_hz)); + else + write_BAUD(drv_data, chip->baud); + write_STAT(drv_data, BIT_STAT_CLR); cr = (read_CTRL(drv_data) & (~BIT_CTL_TIMOD)); cs_active(drv_data, chip); -- cgit v1.2.3 From 4670df831cb479ba57dd0fa0b8a9eb88cc7129be Mon Sep 17 00:00:00 2001 From: Ben Gardner Date: Tue, 4 Dec 2007 23:45:24 -0800 Subject: gpio_cs5535: disable AUX on output The AMD CS5535/CS5536 GPIO has two alternate output modes: AUX-1 and AUX-2. When either AUX is enabled, the cs5535_gpio driver cannot control the output. Some BIOS code for the Geode processor enables AUX-1 for GPIO-1, which configures it as the PC BEEP output. This patch will disable AUX-1 and AUX-2 when the user enables output. Signed-of-by: Ben Gardner Cc: Richard Knutsson Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/cs5535_gpio.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/char/cs5535_gpio.c b/drivers/char/cs5535_gpio.c index fe6d2407bae..c2d23cae951 100644 --- a/drivers/char/cs5535_gpio.c +++ b/drivers/char/cs5535_gpio.c @@ -104,6 +104,11 @@ static ssize_t cs5535_gpio_write(struct file *file, const char __user *data, for (j = 0; j < ARRAY_SIZE(rm); j++) { if (c == rm[j].on) { outl(m1, base + rm[j].wr_offset); + /* If enabling output, turn off AUX 1 and AUX 2 */ + if (c == 'O') { + outl(m0, base + 0x10); + outl(m0, base + 0x14); + } break; } else if (c == rm[j].off) { outl(m0, base + rm[j].wr_offset); -- cgit v1.2.3 From 84f4506cb788d85a50c97b399f2999f90e6272b0 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Thu, 6 Dec 2007 09:38:26 -0800 Subject: [PARISC] lba_pci: pci_claim_resources disabled expansion roms radeonfb was HPMC-ing my C8000 by trying to map its expansion rom from IO_VIEW, instead of PA_VIEW. Fix seems to be to ensure that its disabled ROM is properly inserted into the resource tree. FIXME: this will result in a whinging printk for cards which share expansion ROMS, such as a quad tulip. Thankfully, it isn't harmful. Signed-off-by: Kyle McMartin --- drivers/parisc/lba_pci.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index 5eace9e66e1..66ce6104836 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -768,9 +768,13 @@ lba_fixup_bus(struct pci_bus *bus) DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX", res->flags, res->start, res->end); } - if ((i != PCI_ROM_RESOURCE) || - (res->flags & IORESOURCE_ROM_ENABLE)) - pci_claim_resource(dev, i); + + /* + ** FIXME: this will result in whinging for devices + ** that share expansion ROMs (think quad tulip), but + ** isn't harmful. + */ + pci_claim_resource(dev, i); } #ifdef FBB_SUPPORT -- cgit v1.2.3 From 0c3b091b9a7a5184011e75afa7f0206d288ddb06 Mon Sep 17 00:00:00 2001 From: Mirko Lindner Date: Wed, 5 Dec 2007 21:10:02 -0800 Subject: [NIU]: Fix link LED handling. The LED in the current driver will not be controlled correctly. During a link change the carrier of the link is not available and the LED will never turn on. Signed-off-by: David S. Miller --- drivers/net/niu.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/niu.c b/drivers/net/niu.c index 112ab079ce7..abfc61c3a38 100644 --- a/drivers/net/niu.c +++ b/drivers/net/niu.c @@ -1045,6 +1045,7 @@ static int niu_serdes_init(struct niu *np) } static void niu_init_xif(struct niu *); +static void niu_handle_led(struct niu *, int status); static int niu_link_status_common(struct niu *np, int link_up) { @@ -1066,11 +1067,15 @@ static int niu_link_status_common(struct niu *np, int link_up) spin_lock_irqsave(&np->lock, flags); niu_init_xif(np); + niu_handle_led(np, 1); spin_unlock_irqrestore(&np->lock, flags); netif_carrier_on(dev); } else if (netif_carrier_ok(dev) && !link_up) { niuwarn(LINK, "%s: Link is down\n", dev->name); + spin_lock_irqsave(&np->lock, flags); + niu_handle_led(np, 0); + spin_unlock_irqrestore(&np->lock, flags); netif_carrier_off(dev); } @@ -3915,16 +3920,14 @@ static int niu_init_ipp(struct niu *np) return 0; } -static void niu_init_xif_xmac(struct niu *np) +static void niu_handle_led(struct niu *np, int status) { - struct niu_link_config *lp = &np->link_config; u64 val; - val = nr64_mac(XMAC_CONFIG); if ((np->flags & NIU_FLAGS_10G) != 0 && (np->flags & NIU_FLAGS_FIBER) != 0) { - if (netif_carrier_ok(np->dev)) { + if (status) { val |= XMAC_CONFIG_LED_POLARITY; val &= ~XMAC_CONFIG_FORCE_LED_ON; } else { @@ -3933,6 +3936,15 @@ static void niu_init_xif_xmac(struct niu *np) } } + nw64_mac(XMAC_CONFIG, val); +} + +static void niu_init_xif_xmac(struct niu *np) +{ + struct niu_link_config *lp = &np->link_config; + u64 val; + + val = nr64_mac(XMAC_CONFIG); val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC; val |= XMAC_CONFIG_TX_OUTPUT_EN; @@ -4776,6 +4788,8 @@ static int niu_close(struct net_device *dev) niu_free_channels(np); + niu_handle_led(np, 0); + return 0; } -- cgit v1.2.3 From dc47206e552c0850ad11f7e9a1fca0a3c92f5d65 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Sat, 10 Nov 2007 13:29:04 +0000 Subject: leds: Fix led trigger locking bugs Convert part of the led trigger core from rw spinlocks to rw semaphores. We're calling functions which can sleep from invalid contexts otherwise. Fixes bug #9264. Signed-off-by: Richard Purdie --- drivers/leds/led-class.c | 6 +++--- drivers/leds/led-triggers.c | 49 +++++++++++++++++++++++---------------------- 2 files changed, 28 insertions(+), 27 deletions(-) (limited to 'drivers') diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index 4211293ce86..ba8b04b03b9 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -111,7 +111,7 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev) write_unlock(&leds_list_lock); #ifdef CONFIG_LEDS_TRIGGERS - rwlock_init(&led_cdev->trigger_lock); + init_rwsem(&led_cdev->trigger_lock); rc = device_create_file(led_cdev->dev, &dev_attr_trigger); if (rc) @@ -147,10 +147,10 @@ void led_classdev_unregister(struct led_classdev *led_cdev) device_remove_file(led_cdev->dev, &dev_attr_brightness); #ifdef CONFIG_LEDS_TRIGGERS device_remove_file(led_cdev->dev, &dev_attr_trigger); - write_lock(&led_cdev->trigger_lock); + down_write(&led_cdev->trigger_lock); if (led_cdev->trigger) led_trigger_set(led_cdev, NULL); - write_unlock(&led_cdev->trigger_lock); + up_write(&led_cdev->trigger_lock); #endif device_unregister(led_cdev->dev); diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index 575368c2b10..0bdb786210b 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -19,13 +19,14 @@ #include #include #include +#include #include #include "leds.h" /* * Nests outside led_cdev->trigger_lock */ -static DEFINE_RWLOCK(triggers_list_lock); +static DECLARE_RWSEM(triggers_list_lock); static LIST_HEAD(trigger_list); ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, @@ -44,24 +45,24 @@ ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, trigger_name[len - 1] = '\0'; if (!strcmp(trigger_name, "none")) { - write_lock(&led_cdev->trigger_lock); + down_write(&led_cdev->trigger_lock); led_trigger_set(led_cdev, NULL); - write_unlock(&led_cdev->trigger_lock); + up_write(&led_cdev->trigger_lock); return count; } - read_lock(&triggers_list_lock); + down_read(&triggers_list_lock); list_for_each_entry(trig, &trigger_list, next_trig) { if (!strcmp(trigger_name, trig->name)) { - write_lock(&led_cdev->trigger_lock); + down_write(&led_cdev->trigger_lock); led_trigger_set(led_cdev, trig); - write_unlock(&led_cdev->trigger_lock); + up_write(&led_cdev->trigger_lock); - read_unlock(&triggers_list_lock); + up_read(&triggers_list_lock); return count; } } - read_unlock(&triggers_list_lock); + up_read(&triggers_list_lock); return -EINVAL; } @@ -74,8 +75,8 @@ ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr, struct led_trigger *trig; int len = 0; - read_lock(&triggers_list_lock); - read_lock(&led_cdev->trigger_lock); + down_read(&triggers_list_lock); + down_read(&led_cdev->trigger_lock); if (!led_cdev->trigger) len += sprintf(buf+len, "[none] "); @@ -89,8 +90,8 @@ ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr, else len += sprintf(buf+len, "%s ", trig->name); } - read_unlock(&led_cdev->trigger_lock); - read_unlock(&triggers_list_lock); + up_read(&led_cdev->trigger_lock); + up_read(&triggers_list_lock); len += sprintf(len+buf, "\n"); return len; @@ -145,14 +146,14 @@ void led_trigger_set_default(struct led_classdev *led_cdev) if (!led_cdev->default_trigger) return; - read_lock(&triggers_list_lock); - write_lock(&led_cdev->trigger_lock); + down_read(&triggers_list_lock); + down_write(&led_cdev->trigger_lock); list_for_each_entry(trig, &trigger_list, next_trig) { if (!strcmp(led_cdev->default_trigger, trig->name)) led_trigger_set(led_cdev, trig); } - write_unlock(&led_cdev->trigger_lock); - read_unlock(&triggers_list_lock); + up_write(&led_cdev->trigger_lock); + up_read(&triggers_list_lock); } int led_trigger_register(struct led_trigger *trigger) @@ -163,18 +164,18 @@ int led_trigger_register(struct led_trigger *trigger) INIT_LIST_HEAD(&trigger->led_cdevs); /* Add to the list of led triggers */ - write_lock(&triggers_list_lock); + down_write(&triggers_list_lock); list_add_tail(&trigger->next_trig, &trigger_list); - write_unlock(&triggers_list_lock); + up_write(&triggers_list_lock); /* Register with any LEDs that have this as a default trigger */ read_lock(&leds_list_lock); list_for_each_entry(led_cdev, &leds_list, node) { - write_lock(&led_cdev->trigger_lock); + down_write(&led_cdev->trigger_lock); if (!led_cdev->trigger && led_cdev->default_trigger && !strcmp(led_cdev->default_trigger, trigger->name)) led_trigger_set(led_cdev, trigger); - write_unlock(&led_cdev->trigger_lock); + up_write(&led_cdev->trigger_lock); } read_unlock(&leds_list_lock); @@ -206,17 +207,17 @@ void led_trigger_unregister(struct led_trigger *trigger) struct led_classdev *led_cdev; /* Remove from the list of led triggers */ - write_lock(&triggers_list_lock); + down_write(&triggers_list_lock); list_del(&trigger->next_trig); - write_unlock(&triggers_list_lock); + up_write(&triggers_list_lock); /* Remove anyone actively using this trigger */ read_lock(&leds_list_lock); list_for_each_entry(led_cdev, &leds_list, node) { - write_lock(&led_cdev->trigger_lock); + down_write(&led_cdev->trigger_lock); if (led_cdev->trigger == trigger) led_trigger_set(led_cdev, NULL); - write_unlock(&led_cdev->trigger_lock); + up_write(&led_cdev->trigger_lock); } read_unlock(&leds_list_lock); } -- cgit v1.2.3 From e17bcb43a26a7111f851b5ff6d1258ecd355de75 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 7 Dec 2007 19:16:17 +0100 Subject: ACPI: move timer broadcast before busmaster disable The timer broadcast code might access HPET, which should not be accessed after the busmaster disable. In acpi_idle_enter_simple() this change also prevents, that we modify the busmaster state without going actually idle. This might leave the ACPI bm state in a stale state, when we leave the function early in the need_resched() check. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Acked-by: Venkatesh Pallipadi --- drivers/acpi/processor_idle.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index b1fbee3f7fe..2fe34cc73c1 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -530,6 +530,11 @@ static void acpi_processor_idle(void) break; case ACPI_STATE_C3: + /* + * Must be done before busmaster disable as we might + * need to access HPET ! + */ + acpi_state_timer_broadcast(pr, cx, 1); /* * disable bus master * bm_check implies we need ARB_DIS @@ -557,7 +562,6 @@ static void acpi_processor_idle(void) /* Get start time (ticks) */ t1 = inl(acpi_gbl_FADT.xpm_timer_block.address); /* Invoke C3 */ - acpi_state_timer_broadcast(pr, cx, 1); /* Tell the scheduler that we are going deep-idle: */ sched_clock_idle_sleep_event(); acpi_cstate_enter(cx); @@ -1401,9 +1405,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (acpi_idle_suspend) return(acpi_idle_enter_c1(dev, state)); - if (pr->flags.bm_check) - acpi_idle_update_bm_rld(pr, cx); - local_irq_disable(); current_thread_info()->status &= ~TS_POLLING; /* @@ -1418,13 +1419,21 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, return 0; } + /* + * Must be done before busmaster disable as we might need to + * access HPET ! + */ + acpi_state_timer_broadcast(pr, cx, 1); + + if (pr->flags.bm_check) + acpi_idle_update_bm_rld(pr, cx); + if (cx->type == ACPI_STATE_C3) ACPI_FLUSH_CPU_CACHE(); t1 = inl(acpi_gbl_FADT.xpm_timer_block.address); /* Tell the scheduler that we are going deep-idle: */ sched_clock_idle_sleep_event(); - acpi_state_timer_broadcast(pr, cx, 1); acpi_idle_do_entry(cx); t2 = inl(acpi_gbl_FADT.xpm_timer_block.address); -- cgit v1.2.3 From 7bd4650895137760f6c686d06ca2bc174e3c861c Mon Sep 17 00:00:00 2001 From: Wagner Ferenc Date: Thu, 6 Dec 2007 23:40:28 -0800 Subject: bonding: Remove trailing NULs from sysfs interface. From: Wagner Ferenc Also remove trailing spaces from multivalued files. This fixes output like for example: $ od -c /sys/class/net/bond0/bonding/slaves 0000000 e t h - l e f t e t h - r i g 0000020 h t \n \0 0000025 It mostly entails deleting '+1'-s after sprintf() calls: the return value of sprintf is the number of characters printed, without the closing NUL, ie. exactly what the sysfs interface requires. The three multivalue cases are different, because they also have to swallow back a trailing space. Signed-off-by: Ferenc Wagner Acked-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_sysfs.c | 66 ++++++++++++++++++---------------------- 1 file changed, 30 insertions(+), 36 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index b29330d8e30..a3f1b4afb40 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -86,14 +86,13 @@ static ssize_t bonding_show_bonds(struct class *cls, char *buffer) /* not enough space for another interface name */ if ((PAGE_SIZE - res) > 10) res = PAGE_SIZE - 10; - res += sprintf(buffer + res, "++more++"); + res += sprintf(buffer + res, "++more++ "); break; } res += sprintf(buffer + res, "%s ", bond->dev->name); } - res += sprintf(buffer + res, "\n"); - res++; + if (res) buffer[res-1] = '\n'; /* eat the leftover space */ up_read(&(bonding_rwsem)); return res; } @@ -235,14 +234,13 @@ static ssize_t bonding_show_slaves(struct device *d, /* not enough space for another interface name */ if ((PAGE_SIZE - res) > 10) res = PAGE_SIZE - 10; - res += sprintf(buf + res, "++more++"); + res += sprintf(buf + res, "++more++ "); break; } res += sprintf(buf + res, "%s ", slave->dev->name); } read_unlock(&bond->lock); - res += sprintf(buf + res, "\n"); - res++; + if (res) buf[res-1] = '\n'; /* eat the leftover space */ return res; } @@ -406,7 +404,7 @@ static ssize_t bonding_show_mode(struct device *d, return sprintf(buf, "%s %d\n", bond_mode_tbl[bond->params.mode].modename, - bond->params.mode) + 1; + bond->params.mode); } static ssize_t bonding_store_mode(struct device *d, @@ -463,11 +461,11 @@ static ssize_t bonding_show_xmit_hash(struct device *d, if ((bond->params.mode != BOND_MODE_XOR) && (bond->params.mode != BOND_MODE_8023AD)) { // Not Applicable - count = sprintf(buf, "NA\n") + 1; + count = sprintf(buf, "NA\n"); } else { count = sprintf(buf, "%s %d\n", xmit_hashtype_tbl[bond->params.xmit_policy].modename, - bond->params.xmit_policy) + 1; + bond->params.xmit_policy); } return count; @@ -527,7 +525,7 @@ static ssize_t bonding_show_arp_validate(struct device *d, return sprintf(buf, "%s %d\n", arp_validate_tbl[bond->params.arp_validate].modename, - bond->params.arp_validate) + 1; + bond->params.arp_validate); } static ssize_t bonding_store_arp_validate(struct device *d, @@ -627,7 +625,7 @@ static ssize_t bonding_show_arp_interval(struct device *d, { struct bonding *bond = to_bond(d); - return sprintf(buf, "%d\n", bond->params.arp_interval) + 1; + return sprintf(buf, "%d\n", bond->params.arp_interval); } static ssize_t bonding_store_arp_interval(struct device *d, @@ -711,10 +709,7 @@ static ssize_t bonding_show_arp_targets(struct device *d, res += sprintf(buf + res, "%u.%u.%u.%u ", NIPQUAD(bond->params.arp_targets[i])); } - if (res) - res--; /* eat the leftover space */ - res += sprintf(buf + res, "\n"); - res++; + if (res) buf[res-1] = '\n'; /* eat the leftover space */ return res; } @@ -815,7 +810,7 @@ static ssize_t bonding_show_downdelay(struct device *d, { struct bonding *bond = to_bond(d); - return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon) + 1; + return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); } static ssize_t bonding_store_downdelay(struct device *d, @@ -872,7 +867,7 @@ static ssize_t bonding_show_updelay(struct device *d, { struct bonding *bond = to_bond(d); - return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon) + 1; + return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); } @@ -936,7 +931,7 @@ static ssize_t bonding_show_lacp(struct device *d, return sprintf(buf, "%s %d\n", bond_lacp_tbl[bond->params.lacp_fast].modename, - bond->params.lacp_fast) + 1; + bond->params.lacp_fast); } static ssize_t bonding_store_lacp(struct device *d, @@ -992,7 +987,7 @@ static ssize_t bonding_show_miimon(struct device *d, { struct bonding *bond = to_bond(d); - return sprintf(buf, "%d\n", bond->params.miimon) + 1; + return sprintf(buf, "%d\n", bond->params.miimon); } static ssize_t bonding_store_miimon(struct device *d, @@ -1083,9 +1078,9 @@ static ssize_t bonding_show_primary(struct device *d, struct bonding *bond = to_bond(d); if (bond->primary_slave) - count = sprintf(buf, "%s\n", bond->primary_slave->dev->name) + 1; + count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); else - count = sprintf(buf, "\n") + 1; + count = sprintf(buf, "\n"); return count; } @@ -1149,7 +1144,7 @@ static ssize_t bonding_show_carrier(struct device *d, { struct bonding *bond = to_bond(d); - return sprintf(buf, "%d\n", bond->params.use_carrier) + 1; + return sprintf(buf, "%d\n", bond->params.use_carrier); } static ssize_t bonding_store_carrier(struct device *d, @@ -1198,9 +1193,9 @@ static ssize_t bonding_show_active_slave(struct device *d, read_unlock(&bond->curr_slave_lock); if (USES_PRIMARY(bond->params.mode) && curr) - count = sprintf(buf, "%s\n", curr->dev->name) + 1; + count = sprintf(buf, "%s\n", curr->dev->name); else - count = sprintf(buf, "\n") + 1; + count = sprintf(buf, "\n"); return count; } @@ -1295,7 +1290,7 @@ static ssize_t bonding_show_mii_status(struct device *d, curr = bond->curr_active_slave; read_unlock(&bond->curr_slave_lock); - return sprintf(buf, "%s\n", (curr) ? "up" : "down") + 1; + return sprintf(buf, "%s\n", (curr) ? "up" : "down"); } static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); @@ -1312,10 +1307,10 @@ static ssize_t bonding_show_ad_aggregator(struct device *d, if (bond->params.mode == BOND_MODE_8023AD) { struct ad_info ad_info; - count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.aggregator_id) + 1; + count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.aggregator_id); } else - count = sprintf(buf, "\n") + 1; + count = sprintf(buf, "\n"); return count; } @@ -1334,10 +1329,10 @@ static ssize_t bonding_show_ad_num_ports(struct device *d, if (bond->params.mode == BOND_MODE_8023AD) { struct ad_info ad_info; - count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0: ad_info.ports) + 1; + count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0: ad_info.ports); } else - count = sprintf(buf, "\n") + 1; + count = sprintf(buf, "\n"); return count; } @@ -1356,10 +1351,10 @@ static ssize_t bonding_show_ad_actor_key(struct device *d, if (bond->params.mode == BOND_MODE_8023AD) { struct ad_info ad_info; - count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.actor_key) + 1; + count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.actor_key); } else - count = sprintf(buf, "\n") + 1; + count = sprintf(buf, "\n"); return count; } @@ -1378,10 +1373,10 @@ static ssize_t bonding_show_ad_partner_key(struct device *d, if (bond->params.mode == BOND_MODE_8023AD) { struct ad_info ad_info; - count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.partner_key) + 1; + count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.partner_key); } else - count = sprintf(buf, "\n") + 1; + count = sprintf(buf, "\n"); return count; } @@ -1403,12 +1398,11 @@ static ssize_t bonding_show_ad_partner_mac(struct device *d, struct ad_info ad_info; if (!bond_3ad_get_active_agg_info(bond, &ad_info)) { count = sprintf(buf,"%s\n", - print_mac(mac, ad_info.partner_system)) - + 1; + print_mac(mac, ad_info.partner_system)); } } else - count = sprintf(buf, "\n") + 1; + count = sprintf(buf, "\n"); return count; } -- cgit v1.2.3 From 16cd0160d5e7e22c2818b30bf1a1d4c262a8df8a Mon Sep 17 00:00:00 2001 From: Wagner Ferenc Date: Thu, 6 Dec 2007 23:40:29 -0800 Subject: bonding: Return nothing for not applicable values From: Wagner Ferenc The previous code returned '\n' (that is, a single empty line) from most files, with one exception (xmit_hash_policy), where it returned 'NA\n'. This patch consolidates each file to return nothing at all if not applicable, not even a '\n'. I find this behaviour more usual, more useful, more efficient and shorter to code from both sides. Signed-off-by: Ferenc Wagner Acked-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_sysfs.c | 25 ++++--------------------- 1 file changed, 4 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index a3f1b4afb40..6bb91e29641 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -455,14 +455,11 @@ static ssize_t bonding_show_xmit_hash(struct device *d, struct device_attribute *attr, char *buf) { - int count; + int count = 0; struct bonding *bond = to_bond(d); - if ((bond->params.mode != BOND_MODE_XOR) && - (bond->params.mode != BOND_MODE_8023AD)) { - // Not Applicable - count = sprintf(buf, "NA\n"); - } else { + if ((bond->params.mode == BOND_MODE_XOR) || + (bond->params.mode == BOND_MODE_8023AD)) { count = sprintf(buf, "%s %d\n", xmit_hashtype_tbl[bond->params.xmit_policy].modename, bond->params.xmit_policy); @@ -1079,8 +1076,6 @@ static ssize_t bonding_show_primary(struct device *d, if (bond->primary_slave) count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); - else - count = sprintf(buf, "\n"); return count; } @@ -1186,7 +1181,7 @@ static ssize_t bonding_show_active_slave(struct device *d, { struct slave *curr; struct bonding *bond = to_bond(d); - int count; + int count = 0; read_lock(&bond->curr_slave_lock); curr = bond->curr_active_slave; @@ -1194,8 +1189,6 @@ static ssize_t bonding_show_active_slave(struct device *d, if (USES_PRIMARY(bond->params.mode) && curr) count = sprintf(buf, "%s\n", curr->dev->name); - else - count = sprintf(buf, "\n"); return count; } @@ -1309,8 +1302,6 @@ static ssize_t bonding_show_ad_aggregator(struct device *d, struct ad_info ad_info; count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.aggregator_id); } - else - count = sprintf(buf, "\n"); return count; } @@ -1331,8 +1322,6 @@ static ssize_t bonding_show_ad_num_ports(struct device *d, struct ad_info ad_info; count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0: ad_info.ports); } - else - count = sprintf(buf, "\n"); return count; } @@ -1353,8 +1342,6 @@ static ssize_t bonding_show_ad_actor_key(struct device *d, struct ad_info ad_info; count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.actor_key); } - else - count = sprintf(buf, "\n"); return count; } @@ -1375,8 +1362,6 @@ static ssize_t bonding_show_ad_partner_key(struct device *d, struct ad_info ad_info; count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.partner_key); } - else - count = sprintf(buf, "\n"); return count; } @@ -1401,8 +1386,6 @@ static ssize_t bonding_show_ad_partner_mac(struct device *d, print_mac(mac, ad_info.partner_system)); } } - else - count = sprintf(buf, "\n"); return count; } -- cgit v1.2.3 From b88436651b612be8c29b169af832d80f00f94b7f Mon Sep 17 00:00:00 2001 From: Wagner Ferenc Date: Thu, 6 Dec 2007 23:40:30 -0800 Subject: bonding: Purely cosmetic: rename a local variable From: Wagner Ferenc Code for rendering multivalue sysfs files occurs three times in this module. Rename 'buffer' to 'buf' in the first, for the sake of consistency. Signed-off-by: Ferenc Wagner Acked-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_sysfs.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 6bb91e29641..5c31f5cec9f 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -74,7 +74,7 @@ struct rw_semaphore bonding_rwsem; * "show" function for the bond_masters attribute. * The class parameter is ignored. */ -static ssize_t bonding_show_bonds(struct class *cls, char *buffer) +static ssize_t bonding_show_bonds(struct class *cls, char *buf) { int res = 0; struct bonding *bond; @@ -86,13 +86,12 @@ static ssize_t bonding_show_bonds(struct class *cls, char *buffer) /* not enough space for another interface name */ if ((PAGE_SIZE - res) > 10) res = PAGE_SIZE - 10; - res += sprintf(buffer + res, "++more++ "); + res += sprintf(buf + res, "++more++ "); break; } - res += sprintf(buffer + res, "%s ", - bond->dev->name); + res += sprintf(buf + res, "%s ", bond->dev->name); } - if (res) buffer[res-1] = '\n'; /* eat the leftover space */ + if (res) buf[res-1] = '\n'; /* eat the leftover space */ up_read(&(bonding_rwsem)); return res; } -- cgit v1.2.3 From 1dcdcd69549c8e439fbe97a94ff0332ed8a55558 Mon Sep 17 00:00:00 2001 From: Wagner Ferenc Date: Thu, 6 Dec 2007 23:40:31 -0800 Subject: bonding: Coding style: break line after the if condition From: Wagner Ferenc Adhere to coding style: break line after the if condition Signed-off-by: Ferenc Wagner Acked-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_sysfs.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 5c31f5cec9f..9de2c5284e2 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -91,7 +91,8 @@ static ssize_t bonding_show_bonds(struct class *cls, char *buf) } res += sprintf(buf + res, "%s ", bond->dev->name); } - if (res) buf[res-1] = '\n'; /* eat the leftover space */ + if (res) + buf[res-1] = '\n'; /* eat the leftover space */ up_read(&(bonding_rwsem)); return res; } @@ -239,7 +240,8 @@ static ssize_t bonding_show_slaves(struct device *d, res += sprintf(buf + res, "%s ", slave->dev->name); } read_unlock(&bond->lock); - if (res) buf[res-1] = '\n'; /* eat the leftover space */ + if (res) + buf[res-1] = '\n'; /* eat the leftover space */ return res; } @@ -705,7 +707,8 @@ static ssize_t bonding_show_arp_targets(struct device *d, res += sprintf(buf + res, "%u.%u.%u.%u ", NIPQUAD(bond->params.arp_targets[i])); } - if (res) buf[res-1] = '\n'; /* eat the leftover space */ + if (res) + buf[res-1] = '\n'; /* eat the leftover space */ return res; } -- cgit v1.2.3 From 8e4b9329080b7c37e3dcf4a7c435657d4d0f4816 Mon Sep 17 00:00:00 2001 From: Wagner Ferenc Date: Thu, 6 Dec 2007 23:40:32 -0800 Subject: bonding: Allow setting and querying xmit policy regardless of mode From: Wagner Ferenc For consistency with the behaviour of the arp_ip_target option, let /sys/class/net/bond0/bonding/xmit_hash_policy accept and report current policy even if the bonding mode in effect does not use it. Signed-off-by: Ferenc Wagner Acked-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_sysfs.c | 21 +++------------------ 1 file changed, 3 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 9de2c5284e2..11b76b35241 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -456,17 +456,11 @@ static ssize_t bonding_show_xmit_hash(struct device *d, struct device_attribute *attr, char *buf) { - int count = 0; struct bonding *bond = to_bond(d); - if ((bond->params.mode == BOND_MODE_XOR) || - (bond->params.mode == BOND_MODE_8023AD)) { - count = sprintf(buf, "%s %d\n", - xmit_hashtype_tbl[bond->params.xmit_policy].modename, - bond->params.xmit_policy); - } - - return count; + return sprintf(buf, "%s %d\n", + xmit_hashtype_tbl[bond->params.xmit_policy].modename, + bond->params.xmit_policy); } static ssize_t bonding_store_xmit_hash(struct device *d, @@ -484,15 +478,6 @@ static ssize_t bonding_store_xmit_hash(struct device *d, goto out; } - if ((bond->params.mode != BOND_MODE_XOR) && - (bond->params.mode != BOND_MODE_8023AD)) { - printk(KERN_ERR DRV_NAME - "%s: Transmit hash policy is irrelevant in this mode.\n", - bond->dev->name); - ret = -EPERM; - goto out; - } - new_value = bond_parse_parm((char *)buf, xmit_hashtype_tbl); if (new_value < 0) { printk(KERN_ERR DRV_NAME -- cgit v1.2.3 From b63bb739a1d24f395c09f88ff43c54c736a60453 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Thu, 6 Dec 2007 23:40:33 -0800 Subject: bonding: Fix time comparison From: David Sterba Use macros for comparing jiffies. Jiffies' wrap caused missed events and hangs. Module reinsert was needed to make bonding work again. Signed-off-by: David Sterba Acked-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_main.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 423298c84a1..e4a47149735 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -74,6 +74,7 @@ #include #include #include +#include #include #include #include "bonding.h" @@ -2722,8 +2723,8 @@ void bond_loadbalance_arp_mon(struct work_struct *work) */ bond_for_each_slave(bond, slave, i) { if (slave->link != BOND_LINK_UP) { - if (((jiffies - slave->dev->trans_start) <= delta_in_ticks) && - ((jiffies - slave->dev->last_rx) <= delta_in_ticks)) { + if (time_before_eq(jiffies, slave->dev->trans_start + delta_in_ticks) && + time_before_eq(jiffies, slave->dev->last_rx + delta_in_ticks)) { slave->link = BOND_LINK_UP; slave->state = BOND_STATE_ACTIVE; @@ -2754,8 +2755,8 @@ void bond_loadbalance_arp_mon(struct work_struct *work) * when the source ip is 0, so don't take the link down * if we don't know our ip yet */ - if (((jiffies - slave->dev->trans_start) >= (2*delta_in_ticks)) || - (((jiffies - slave->dev->last_rx) >= (2*delta_in_ticks)) && + if (time_after_eq(jiffies, slave->dev->trans_start + 2*delta_in_ticks) || + (time_after_eq(jiffies, slave->dev->last_rx + 2*delta_in_ticks) && bond_has_ip(bond))) { slave->link = BOND_LINK_DOWN; @@ -2848,8 +2849,8 @@ void bond_activebackup_arp_mon(struct work_struct *work) */ bond_for_each_slave(bond, slave, i) { if (slave->link != BOND_LINK_UP) { - if ((jiffies - slave_last_rx(bond, slave)) <= - delta_in_ticks) { + if (time_before_eq(jiffies, + slave_last_rx(bond, slave) + delta_in_ticks)) { slave->link = BOND_LINK_UP; @@ -2858,7 +2859,7 @@ void bond_activebackup_arp_mon(struct work_struct *work) write_lock_bh(&bond->curr_slave_lock); if ((!bond->curr_active_slave) && - ((jiffies - slave->dev->trans_start) <= delta_in_ticks)) { + time_before_eq(jiffies, slave->dev->trans_start + delta_in_ticks)) { bond_change_active_slave(bond, slave); bond->current_arp_slave = NULL; } else if (bond->curr_active_slave != slave) { @@ -2897,7 +2898,7 @@ void bond_activebackup_arp_mon(struct work_struct *work) if ((slave != bond->curr_active_slave) && (!bond->current_arp_slave) && - (((jiffies - slave_last_rx(bond, slave)) >= 3*delta_in_ticks) && + (time_after_eq(jiffies, slave_last_rx(bond, slave) + 3*delta_in_ticks) && bond_has_ip(bond))) { /* a backup slave has gone down; three times * the delta allows the current slave to be @@ -2943,10 +2944,10 @@ void bond_activebackup_arp_mon(struct work_struct *work) * before being taken out. if a primary is being used, check * if it is up and needs to take over as the curr_active_slave */ - if ((((jiffies - slave->dev->trans_start) >= (2*delta_in_ticks)) || - (((jiffies - slave_last_rx(bond, slave)) >= (2*delta_in_ticks)) && - bond_has_ip(bond))) && - ((jiffies - slave->jiffies) >= 2*delta_in_ticks)) { + if ((time_after_eq(jiffies, slave->dev->trans_start + 2*delta_in_ticks) || + (time_after_eq(jiffies, slave_last_rx(bond, slave) + 2*delta_in_ticks) && + bond_has_ip(bond))) && + time_after_eq(jiffies, slave->jiffies + 2*delta_in_ticks)) { slave->link = BOND_LINK_DOWN; -- cgit v1.2.3 From 6f6652be183c8c7cb99c646dd7494ab45e4833ba Mon Sep 17 00:00:00 2001 From: Jay Vosburgh Date: Thu, 6 Dec 2007 23:40:34 -0800 Subject: bonding: Add new layer2+3 hash for xor/802.3ad modes Add new hash for balance-xor and 802.3ad modes. Originally submitted by "Glenn Griffin" ; modified by Jay Vosburgh to move setting of hash policy out of line, tweak the documentation update and add version update to 3.2.2. Glenn's original comment follows: Included is a patch for a new xmit_hash_policy for the bonding driver that selects slaves based on MAC and IP information. This is a middle ground between what currently exists in the layer2 only policy and the layer3+4 policy. This policy strives to be fully 802.3ad compliant by transmitting every packet of any particular flow over the same link. As documented the layer3+4 policy is not fully compliant for extreme cases such as ip fragmentation, so this policy is a nice compromise for environments that require full compliance but desire more than the layer2 only policy. Signed-off-by: "Glenn Griffin" Signed-off-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_main.c | 48 ++++++++++++++++++++++++++++++++--------- drivers/net/bonding/bonding.h | 4 ++-- 2 files changed, 40 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index e4a47149735..08879d552ae 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -175,6 +175,7 @@ struct bond_parm_tbl bond_mode_tbl[] = { struct bond_parm_tbl xmit_hashtype_tbl[] = { { "layer2", BOND_XMIT_POLICY_LAYER2}, { "layer3+4", BOND_XMIT_POLICY_LAYER34}, +{ "layer2+3", BOND_XMIT_POLICY_LAYER23}, { NULL, -1}, }; @@ -3604,6 +3605,24 @@ void bond_unregister_arp(struct bonding *bond) /*---------------------------- Hashing Policies -----------------------------*/ +/* + * Hash for the output device based upon layer 2 and layer 3 data. If + * the packet is not IP mimic bond_xmit_hash_policy_l2() + */ +static int bond_xmit_hash_policy_l23(struct sk_buff *skb, + struct net_device *bond_dev, int count) +{ + struct ethhdr *data = (struct ethhdr *)skb->data; + struct iphdr *iph = ip_hdr(skb); + + if (skb->protocol == __constant_htons(ETH_P_IP)) { + return ((ntohl(iph->saddr ^ iph->daddr) & 0xffff) ^ + (data->h_dest[5] ^ bond_dev->dev_addr[5])) % count; + } + + return (data->h_dest[5] ^ bond_dev->dev_addr[5]) % count; +} + /* * Hash for the output device based upon layer 3 and layer 4 data. If * the packet is a frag or not TCP or UDP, just use layer 3 data. If it is @@ -4306,6 +4325,22 @@ out: /*------------------------- Device initialization ---------------------------*/ +static void bond_set_xmit_hash_policy(struct bonding *bond) +{ + switch (bond->params.xmit_policy) { + case BOND_XMIT_POLICY_LAYER23: + bond->xmit_hash_policy = bond_xmit_hash_policy_l23; + break; + case BOND_XMIT_POLICY_LAYER34: + bond->xmit_hash_policy = bond_xmit_hash_policy_l34; + break; + case BOND_XMIT_POLICY_LAYER2: + default: + bond->xmit_hash_policy = bond_xmit_hash_policy_l2; + break; + } +} + /* * set bond mode specific net device operations */ @@ -4322,10 +4357,7 @@ void bond_set_mode_ops(struct bonding *bond, int mode) break; case BOND_MODE_XOR: bond_dev->hard_start_xmit = bond_xmit_xor; - if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34) - bond->xmit_hash_policy = bond_xmit_hash_policy_l34; - else - bond->xmit_hash_policy = bond_xmit_hash_policy_l2; + bond_set_xmit_hash_policy(bond); break; case BOND_MODE_BROADCAST: bond_dev->hard_start_xmit = bond_xmit_broadcast; @@ -4333,10 +4365,7 @@ void bond_set_mode_ops(struct bonding *bond, int mode) case BOND_MODE_8023AD: bond_set_master_3ad_flags(bond); bond_dev->hard_start_xmit = bond_3ad_xmit_xor; - if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34) - bond->xmit_hash_policy = bond_xmit_hash_policy_l34; - else - bond->xmit_hash_policy = bond_xmit_hash_policy_l2; + bond_set_xmit_hash_policy(bond); break; case BOND_MODE_ALB: bond_set_master_alb_flags(bond); @@ -4498,8 +4527,7 @@ int bond_parse_parm(char *mode_arg, struct bond_parm_tbl *tbl) for (i = 0; tbl[i].modename; i++) { if ((isdigit(*mode_arg) && tbl[i].mode == simple_strtol(mode_arg, NULL, 0)) || - (strncmp(mode_arg, tbl[i].modename, - strlen(tbl[i].modename)) == 0)) { + (strcmp(mode_arg, tbl[i].modename) == 0)) { return tbl[i].mode; } } diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 61c1b4536d3..ccafc74c5a2 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -22,8 +22,8 @@ #include "bond_3ad.h" #include "bond_alb.h" -#define DRV_VERSION "3.2.1" -#define DRV_RELDATE "October 15, 2007" +#define DRV_VERSION "3.2.2" +#define DRV_RELDATE "December 6, 2007" #define DRV_NAME "bonding" #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver" -- cgit v1.2.3 From fdaea7a93d097b066e76c7db6091228a84f87ec2 Mon Sep 17 00:00:00 2001 From: Jay Vosburgh Date: Thu, 6 Dec 2007 23:40:35 -0800 Subject: bonding: Fix race at module unload Fixes a race condition in module unload. Without this change, workqueue events may fire while bonding data structures are partially freed but before bond_close() is invoked by unregister_netdevice(). Update version to 3.2.3. Signed-off-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_main.c | 43 +++++++++++++++++++++-------------------- drivers/net/bonding/bonding.h | 2 +- 2 files changed, 23 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 08879d552ae..b0b26036266 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4492,6 +4492,27 @@ static void bond_deinit(struct net_device *bond_dev) #endif } +static void bond_work_cancel_all(struct bonding *bond) +{ + write_lock_bh(&bond->lock); + bond->kill_timers = 1; + write_unlock_bh(&bond->lock); + + if (bond->params.miimon && delayed_work_pending(&bond->mii_work)) + cancel_delayed_work(&bond->mii_work); + + if (bond->params.arp_interval && delayed_work_pending(&bond->arp_work)) + cancel_delayed_work(&bond->arp_work); + + if (bond->params.mode == BOND_MODE_ALB && + delayed_work_pending(&bond->alb_work)) + cancel_delayed_work(&bond->alb_work); + + if (bond->params.mode == BOND_MODE_8023AD && + delayed_work_pending(&bond->ad_work)) + cancel_delayed_work(&bond->ad_work); +} + /* Unregister and free all bond devices. * Caller must hold rtnl_lock. */ @@ -4502,6 +4523,7 @@ static void bond_free_all(void) list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list) { struct net_device *bond_dev = bond->dev; + bond_work_cancel_all(bond); bond_mc_list_destroy(bond); /* Release the bonded slaves */ bond_release_all(bond_dev); @@ -4902,27 +4924,6 @@ out_rtnl: return res; } -static void bond_work_cancel_all(struct bonding *bond) -{ - write_lock_bh(&bond->lock); - bond->kill_timers = 1; - write_unlock_bh(&bond->lock); - - if (bond->params.miimon && delayed_work_pending(&bond->mii_work)) - cancel_delayed_work(&bond->mii_work); - - if (bond->params.arp_interval && delayed_work_pending(&bond->arp_work)) - cancel_delayed_work(&bond->arp_work); - - if (bond->params.mode == BOND_MODE_ALB && - delayed_work_pending(&bond->alb_work)) - cancel_delayed_work(&bond->alb_work); - - if (bond->params.mode == BOND_MODE_8023AD && - delayed_work_pending(&bond->ad_work)) - cancel_delayed_work(&bond->ad_work); -} - static int __init bonding_init(void) { int i; diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index ccafc74c5a2..e1e4734e23c 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -22,7 +22,7 @@ #include "bond_3ad.h" #include "bond_alb.h" -#define DRV_VERSION "3.2.2" +#define DRV_VERSION "3.2.3" #define DRV_RELDATE "December 6, 2007" #define DRV_NAME "bonding" #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver" -- cgit v1.2.3 From 75758e8aa4b7d5c651261ce653dd8d0b716e1eda Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Wed, 5 Dec 2007 10:15:01 -0800 Subject: cxgb3 - T3C support update Update GPIO mapping for T3C. Update xgmac for T3C support. Fix typo in mtu table. Signed-off-by: Divy Le Ray Signed-off-by: Jeff Garzik --- drivers/net/cxgb3/regs.h | 27 ++++++++++++++++++++++++++- drivers/net/cxgb3/t3_hw.c | 6 +++--- drivers/net/cxgb3/xgmac.c | 44 +++++++++++++++++++++++++++++--------------- 3 files changed, 58 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h index 5e1bc0dec5f..6e12bf4bc6c 100644 --- a/drivers/net/cxgb3/regs.h +++ b/drivers/net/cxgb3/regs.h @@ -1937,6 +1937,10 @@ #define A_XGM_RXFIFO_CFG 0x884 +#define S_RXFIFO_EMPTY 31 +#define V_RXFIFO_EMPTY(x) ((x) << S_RXFIFO_EMPTY) +#define F_RXFIFO_EMPTY V_RXFIFO_EMPTY(1U) + #define S_RXFIFOPAUSEHWM 17 #define M_RXFIFOPAUSEHWM 0xfff @@ -1961,6 +1965,10 @@ #define A_XGM_TXFIFO_CFG 0x888 +#define S_UNDERUNFIX 22 +#define V_UNDERUNFIX(x) ((x) << S_UNDERUNFIX) +#define F_UNDERUNFIX V_UNDERUNFIX(1U) + #define S_TXIPG 13 #define M_TXIPG 0xff #define V_TXIPG(x) ((x) << S_TXIPG) @@ -2034,10 +2042,27 @@ #define V_XAUIIMP(x) ((x) << S_XAUIIMP) #define A_XGM_RX_MAX_PKT_SIZE 0x8a8 -#define A_XGM_RX_MAX_PKT_SIZE_ERR_CNT 0x9a4 + +#define S_RXMAXFRAMERSIZE 17 +#define M_RXMAXFRAMERSIZE 0x3fff +#define V_RXMAXFRAMERSIZE(x) ((x) << S_RXMAXFRAMERSIZE) +#define G_RXMAXFRAMERSIZE(x) (((x) >> S_RXMAXFRAMERSIZE) & M_RXMAXFRAMERSIZE) + +#define S_RXENFRAMER 14 +#define V_RXENFRAMER(x) ((x) << S_RXENFRAMER) +#define F_RXENFRAMER V_RXENFRAMER(1U) + +#define S_RXMAXPKTSIZE 0 +#define M_RXMAXPKTSIZE 0x3fff +#define V_RXMAXPKTSIZE(x) ((x) << S_RXMAXPKTSIZE) +#define G_RXMAXPKTSIZE(x) (((x) >> S_RXMAXPKTSIZE) & M_RXMAXPKTSIZE) #define A_XGM_RESET_CTRL 0x8ac +#define S_XGMAC_STOP_EN 4 +#define V_XGMAC_STOP_EN(x) ((x) << S_XGMAC_STOP_EN) +#define F_XGMAC_STOP_EN V_XGMAC_STOP_EN(1U) + #define S_XG2G_RESET_ 3 #define V_XG2G_RESET_(x) ((x) << S_XG2G_RESET_) #define F_XG2G_RESET_ V_XG2G_RESET_(1U) diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c index d4ee00d3221..522834c42ae 100644 --- a/drivers/net/cxgb3/t3_hw.c +++ b/drivers/net/cxgb3/t3_hw.c @@ -447,8 +447,8 @@ static const struct adapter_info t3_adap_info[] = { &mi1_mdio_ops, "Chelsio T302"}, {1, 0, 0, 0, F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO10_OEN | - F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL, 0, - SUPPORTED_10000baseT_Full | SUPPORTED_AUI, + F_GPIO11_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL, + 0, SUPPORTED_10000baseT_Full | SUPPORTED_AUI, &mi1_mdio_ext_ops, "Chelsio T310"}, {2, 0, 0, 0, F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO5_OEN | F_GPIO6_OEN | @@ -2613,7 +2613,7 @@ static void __devinit init_mtus(unsigned short mtus[]) * it can accomodate max size TCP/IP headers when SACK and timestamps * are enabled and still have at least 8 bytes of payload. */ - mtus[1] = 88; + mtus[0] = 88; mtus[1] = 88; mtus[2] = 256; mtus[3] = 512; diff --git a/drivers/net/cxgb3/xgmac.c b/drivers/net/cxgb3/xgmac.c index eeb766aeced..efcf09a709c 100644 --- a/drivers/net/cxgb3/xgmac.c +++ b/drivers/net/cxgb3/xgmac.c @@ -106,6 +106,7 @@ int t3_mac_reset(struct cmac *mac) t3_set_reg_field(adap, A_XGM_RXFIFO_CFG + oft, F_RXSTRFRWRD | F_DISERRFRAMES, uses_xaui(adap) ? 0 : F_RXSTRFRWRD); + t3_set_reg_field(adap, A_XGM_TXFIFO_CFG + oft, 0, F_UNDERUNFIX); if (uses_xaui(adap)) { if (adap->params.rev == 0) { @@ -124,7 +125,11 @@ int t3_mac_reset(struct cmac *mac) xaui_serdes_reset(mac); } - val = F_MAC_RESET_; + t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + oft, + V_RXMAXFRAMERSIZE(M_RXMAXFRAMERSIZE), + V_RXMAXFRAMERSIZE(MAX_FRAME_SIZE) | F_RXENFRAMER); + val = F_MAC_RESET_ | F_XGMAC_STOP_EN; + if (is_10G(adap)) val |= F_PCS_RESET_; else if (uses_xaui(adap)) @@ -313,8 +318,9 @@ static int rx_fifo_hwm(int mtu) int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu) { - int hwm, lwm; - unsigned int thres, v; + int hwm, lwm, divisor; + int ipg; + unsigned int thres, v, reg; struct adapter *adap = mac->adapter; /* @@ -335,27 +341,32 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu) hwm = min(hwm, MAC_RXFIFO_SIZE - 8192); lwm = min(3 * (int)mtu, MAC_RXFIFO_SIZE / 4); - if (adap->params.rev == T3_REV_B2 && + if (adap->params.rev >= T3_REV_B2 && (t3_read_reg(adap, A_XGM_RX_CTRL + mac->offset) & F_RXEN)) { disable_exact_filters(mac); v = t3_read_reg(adap, A_XGM_RX_CFG + mac->offset); t3_set_reg_field(adap, A_XGM_RX_CFG + mac->offset, F_ENHASHMCAST | F_COPYALLFRAMES, F_DISBCAST); - /* drain rx FIFO */ - if (t3_wait_op_done(adap, - A_XGM_RX_MAX_PKT_SIZE_ERR_CNT + - mac->offset, - 1 << 31, 1, 20, 5)) { + reg = adap->params.rev == T3_REV_B2 ? + A_XGM_RX_MAX_PKT_SIZE_ERR_CNT : A_XGM_RXFIFO_CFG; + + /* drain RX FIFO */ + if (t3_wait_op_done(adap, reg + mac->offset, + F_RXFIFO_EMPTY, 1, 20, 5)) { t3_write_reg(adap, A_XGM_RX_CFG + mac->offset, v); enable_exact_filters(mac); return -EIO; } - t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu); + t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, + V_RXMAXPKTSIZE(M_RXMAXPKTSIZE), + V_RXMAXPKTSIZE(mtu)); t3_write_reg(adap, A_XGM_RX_CFG + mac->offset, v); enable_exact_filters(mac); } else - t3_write_reg(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, mtu); + t3_set_reg_field(adap, A_XGM_RX_MAX_PKT_SIZE + mac->offset, + V_RXMAXPKTSIZE(M_RXMAXPKTSIZE), + V_RXMAXPKTSIZE(mtu)); /* * Adjust the PAUSE frame watermarks. We always set the LWM, and the @@ -379,13 +390,16 @@ int t3_mac_set_mtu(struct cmac *mac, unsigned int mtu) thres /= 10; thres = mtu > thres ? (mtu - thres + 7) / 8 : 0; thres = max(thres, 8U); /* need at least 8 */ + ipg = (adap->params.rev == T3_REV_C) ? 0 : 1; t3_set_reg_field(adap, A_XGM_TXFIFO_CFG + mac->offset, V_TXFIFOTHRESH(M_TXFIFOTHRESH) | V_TXIPG(M_TXIPG), - V_TXFIFOTHRESH(thres) | V_TXIPG(1)); + V_TXFIFOTHRESH(thres) | V_TXIPG(ipg)); - if (adap->params.rev > 0) + if (adap->params.rev > 0) { + divisor = (adap->params.rev == T3_REV_C) ? 64 : 8; t3_write_reg(adap, A_XGM_PAUSE_TIMER + mac->offset, - (hwm - lwm) * 4 / 8); + (hwm - lwm) * 4 / divisor); + } t3_write_reg(adap, A_XGM_TX_PAUSE_QUANTA + mac->offset, MAC_RXFIFO_SIZE * 4 * 8 / 512); return 0; @@ -522,7 +536,7 @@ int t3b2_mac_watchdog_task(struct cmac *mac) goto rxcheck; } - if ((tx_tcnt != mac->tx_tcnt) && (mac->tx_xcnt == 0)) { + if ((tx_tcnt != mac->tx_tcnt) && (mac->tx_xcnt == 0)) { if (mac->toggle_cnt > 4) { status = 2; goto out; -- cgit v1.2.3 From 70eba18b5664f90d7620905e005b89388e5fd94b Mon Sep 17 00:00:00 2001 From: Eliezer Tamir Date: Wed, 5 Dec 2007 16:12:39 +0200 Subject: make bnx2x select ZLIB_INFLATE The bnx2x module depends on the zlib_inflate functions. The build will fail if ZLIB_INFLATE has not been selected manually or by building another module that automatically selects it. Modify BNX2X config option to 'select ZLIB_INFLATE' like BNX2 and others. This seems to fix it. Signed-off-by: Lee Schermerhorn Acked-by: Eliezer Tamir Signed-off-by: Jeff Garzik --- drivers/net/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index d9107e542df..6cde4edc846 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2588,6 +2588,7 @@ config MLX4_DEBUG config TEHUTI tristate "Tehuti Networks 10G Ethernet" depends on PCI + select ZLIB_INFLATE help Tehuti Networks 10G Ethernet NIC -- cgit v1.2.3 From c32bc6e9b0778c891f7f3b97cd05c8cdf98b6721 Mon Sep 17 00:00:00 2001 From: Roel Kluin <12o3l@tiscali.nl> Date: Wed, 5 Dec 2007 11:57:30 -0800 Subject: e1000: fix memcpy in e1000_get_strings drivers/net/e1000/e1000_ethtool.c:113: #define E1000_TEST_LEN sizeof(e1000_gstrings_test) / ETH_GSTRING_LEN drivers/net/e1000e/ethtool.c:106: #define E1000_TEST_LEN sizeof(e1000_gstrings_test) / ETH_GSTRING_LEN E1000_TEST_LEN*ETH_GSTRING_LEN will expand to sizeof(e1000_gstrings_test) / (ETH_GSTRING_LEN * ETH_GSTRING_LEN) A lack of parentheses around defines causes unexpected results due to operator precedences. Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Auke Kok Signed-off-by: Jeff Garzik --- drivers/net/e1000/e1000_ethtool.c | 2 +- drivers/net/e1000e/ethtool.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c index 667f18bcc17..b83ccce8a9b 100644 --- a/drivers/net/e1000/e1000_ethtool.c +++ b/drivers/net/e1000/e1000_ethtool.c @@ -1923,7 +1923,7 @@ e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data) switch (stringset) { case ETH_SS_TEST: memcpy(data, *e1000_gstrings_test, - E1000_TEST_LEN*ETH_GSTRING_LEN); + sizeof(e1000_gstrings_test)); break; case ETH_SS_STATS: for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index 6a39784e7ee..87f9da1b6b4 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -1739,7 +1739,7 @@ static void e1000_get_strings(struct net_device *netdev, u32 stringset, switch (stringset) { case ETH_SS_TEST: memcpy(data, *e1000_gstrings_test, - E1000_TEST_LEN*ETH_GSTRING_LEN); + sizeof(e1000_gstrings_test)); break; case ETH_SS_STATS: for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { -- cgit v1.2.3 From abf9b902059fb1d569b64e8645a76f0fccbdbbe5 Mon Sep 17 00:00:00 2001 From: Auke Kok Date: Wed, 5 Dec 2007 11:57:37 -0800 Subject: e100: cleanup unneeded math No need to convert to bytes and back - cleanup unneeded code. Adapted from fix from 'Roel Kluin <12o3l@tiscali.nl>' Signed-off-by: Auke Kok Signed-off-by: Jeff Garzik --- drivers/net/e100.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/e100.c b/drivers/net/e100.c index 3dbaec680b4..e1c8a0d023e 100644 --- a/drivers/net/e100.c +++ b/drivers/net/e100.c @@ -2214,13 +2214,11 @@ static void e100_get_drvinfo(struct net_device *netdev, strcpy(info->bus_info, pci_name(nic->pdev)); } +#define E100_PHY_REGS 0x1C static int e100_get_regs_len(struct net_device *netdev) { struct nic *nic = netdev_priv(netdev); -#define E100_PHY_REGS 0x1C -#define E100_REGS_LEN 1 + E100_PHY_REGS + \ - sizeof(nic->mem->dump_buf) / sizeof(u32) - return E100_REGS_LEN * sizeof(u32); + return 1 + E100_PHY_REGS + sizeof(nic->mem->dump_buf); } static void e100_get_regs(struct net_device *netdev, -- cgit v1.2.3 From f1f304f2e8fbc6ca80d5ef90132bd0772048f0ef Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Wed, 5 Dec 2007 11:14:25 +1100 Subject: ibm_newemac: Add BCM5248 and Marvell 88E1111 PHY support This patch adds BCM5248 and Marvell 88E1111 PHY support to NEW EMAC driver. These PHY chips are used on PowerPC 440EPx boards. The PHY code is based on the previous work by Stefan Roese Signed-off-by: Stefan Roese Signed-off-by: Valentine Barshak Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/phy.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/phy.c b/drivers/net/ibm_newemac/phy.c index aa1f0ddf1e3..a5e89c55abd 100644 --- a/drivers/net/ibm_newemac/phy.c +++ b/drivers/net/ibm_newemac/phy.c @@ -306,8 +306,47 @@ static struct mii_phy_def cis8201_phy_def = { .ops = &cis8201_phy_ops }; +static struct mii_phy_def bcm5248_phy_def = { + + .phy_id = 0x0143bc00, + .phy_id_mask = 0x0ffffff0, + .name = "BCM5248 10/100 SMII Ethernet", + .ops = &generic_phy_ops +}; + +static int m88e1111_init(struct mii_phy *phy) +{ + pr_debug("%s: Marvell 88E1111 Ethernet\n", __FUNCTION__); + phy_write(phy, 0x14, 0x0ce3); + phy_write(phy, 0x18, 0x4101); + phy_write(phy, 0x09, 0x0e00); + phy_write(phy, 0x04, 0x01e1); + phy_write(phy, 0x00, 0x9140); + phy_write(phy, 0x00, 0x1140); + + return 0; +} + +static struct mii_phy_ops m88e1111_phy_ops = { + .init = m88e1111_init, + .setup_aneg = genmii_setup_aneg, + .setup_forced = genmii_setup_forced, + .poll_link = genmii_poll_link, + .read_link = genmii_read_link +}; + +static struct mii_phy_def m88e1111_phy_def = { + + .phy_id = 0x01410CC0, + .phy_id_mask = 0x0ffffff0, + .name = "Marvell 88E1111 Ethernet", + .ops = &m88e1111_phy_ops, +}; + static struct mii_phy_def *mii_phy_table[] = { &cis8201_phy_def, + &bcm5248_phy_def, + &m88e1111_phy_def, &genmii_phy_def, NULL }; -- cgit v1.2.3 From 8df4538e21f7313a29fa6c5af78c08a135d44738 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Wed, 5 Dec 2007 11:14:26 +1100 Subject: ibm_newemac: Add ET1011c PHY support This adds support for the Agere ET1011c PHY as found on the AMCC Taishan board. Signed-off-by: Stefan Roese Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/phy.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/phy.c b/drivers/net/ibm_newemac/phy.c index a5e89c55abd..9308fad76d5 100644 --- a/drivers/net/ibm_newemac/phy.c +++ b/drivers/net/ibm_newemac/phy.c @@ -327,6 +327,42 @@ static int m88e1111_init(struct mii_phy *phy) return 0; } +static int et1011c_init(struct mii_phy *phy) +{ + u16 reg_short; + + reg_short = (u16)(phy_read(phy, 0x16)); + reg_short &= ~(0x7); + reg_short |= 0x6; /* RGMII Trace Delay*/ + phy_write(phy, 0x16, reg_short); + + reg_short = (u16)(phy_read(phy, 0x17)); + reg_short &= ~(0x40); + phy_write(phy, 0x17, reg_short); + + phy_write(phy, 0x1c, 0x74f0); + return 0; +} + +static struct mii_phy_ops et1011c_phy_ops = { + .init = et1011c_init, + .setup_aneg = genmii_setup_aneg, + .setup_forced = genmii_setup_forced, + .poll_link = genmii_poll_link, + .read_link = genmii_read_link +}; + +static struct mii_phy_def et1011c_phy_def = { + .phy_id = 0x0282f000, + .phy_id_mask = 0x0fffff00, + .name = "ET1011C Gigabit Ethernet", + .ops = &et1011c_phy_ops +}; + + + + + static struct mii_phy_ops m88e1111_phy_ops = { .init = m88e1111_init, .setup_aneg = genmii_setup_aneg, @@ -344,6 +380,7 @@ static struct mii_phy_def m88e1111_phy_def = { }; static struct mii_phy_def *mii_phy_table[] = { + &et1011c_phy_def, &cis8201_phy_def, &bcm5248_phy_def, &m88e1111_phy_def, -- cgit v1.2.3 From 968530643a0685caced9dfd6f72f20d5e7bc8fbb Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 5 Dec 2007 11:14:27 +1100 Subject: ibm_newemac: Fix ZMII refcounting bug When using ZMII for MDIO only (such as 440GX with RGMII for data and ZMII for MDIO), the ZMII code would fail to properly refcount, thus triggering a BUG_ON(). Signed-off-by: Benjamin Herrenschmidt Acked-by: Stefan Roese Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/zmii.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/zmii.c b/drivers/net/ibm_newemac/zmii.c index 2219ec2740e..0f8cfbc0c61 100644 --- a/drivers/net/ibm_newemac/zmii.c +++ b/drivers/net/ibm_newemac/zmii.c @@ -83,12 +83,14 @@ int __devinit zmii_attach(struct of_device *ofdev, int input, int *mode) ZMII_DBG(dev, "init(%d, %d)" NL, input, *mode); - if (!zmii_valid_mode(*mode)) + if (!zmii_valid_mode(*mode)) { /* Probably an EMAC connected to RGMII, * but it still may need ZMII for MDIO so * we don't fail here. */ + dev->users++; return 0; + } mutex_lock(&dev->lock); -- cgit v1.2.3 From 911b237d7d327db5371a762f4d8d8cd9ea763662 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 5 Dec 2007 11:14:27 +1100 Subject: ibm_newemac: Workaround reset timeout when no link With some PHYs, when the link goes away, the EMAC reset fails due to the loss of the RX clock I believe. The old EMAC driver worked around that using some internal chip-specific clock force bits that are different on various 44x implementations. This is an attempt at doing it differently, by avoiding the reset when there is no link, but forcing loopback mode instead. It seems to work on my Taishan 440GX based board so far. Signed-off-by: Benjamin Herrenschmidt Acked-by: Stefan Roese Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/core.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index eb0718b441b..e0eae09febf 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -464,26 +464,34 @@ static int emac_configure(struct emac_instance *dev) { struct emac_regs __iomem *p = dev->emacp; struct net_device *ndev = dev->ndev; - int tx_size, rx_size; + int tx_size, rx_size, link = netif_carrier_ok(dev->ndev); u32 r, mr1 = 0; DBG(dev, "configure" NL); - if (emac_reset(dev) < 0) + if (!link) { + out_be32(&p->mr1, in_be32(&p->mr1) + | EMAC_MR1_FDE | EMAC_MR1_ILE); + udelay(100); + } else if (emac_reset(dev) < 0) return -ETIMEDOUT; if (emac_has_feature(dev, EMAC_FTR_HAS_TAH)) tah_reset(dev->tah_dev); - DBG(dev, " duplex = %d, pause = %d, asym_pause = %d\n", - dev->phy.duplex, dev->phy.pause, dev->phy.asym_pause); + DBG(dev, " link = %d duplex = %d, pause = %d, asym_pause = %d\n", + link, dev->phy.duplex, dev->phy.pause, dev->phy.asym_pause); /* Default fifo sizes */ tx_size = dev->tx_fifo_size; rx_size = dev->rx_fifo_size; + /* No link, force loopback */ + if (!link) + mr1 = EMAC_MR1_FDE | EMAC_MR1_ILE; + /* Check for full duplex */ - if (dev->phy.duplex == DUPLEX_FULL) + else if (dev->phy.duplex == DUPLEX_FULL) mr1 |= EMAC_MR1_FDE | EMAC_MR1_MWSW_001; /* Adjust fifo sizes, mr1 and timeouts based on link speed */ @@ -1165,9 +1173,9 @@ static void emac_link_timer(struct work_struct *work) link_poll_interval = PHY_POLL_LINK_ON; } else { if (netif_carrier_ok(dev->ndev)) { - emac_reinitialize(dev); netif_carrier_off(dev->ndev); netif_tx_disable(dev->ndev); + emac_reinitialize(dev); emac_print_link_status(dev); } link_poll_interval = PHY_POLL_LINK_OFF; -- cgit v1.2.3 From 1f57877a39105ec4d99d63d02058f6db6ca6abe0 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 5 Dec 2007 11:14:28 +1100 Subject: ibm_newemac: Cleanup/Fix RGMII MDIO support detection More than just "AXON" version of EMAC RGMII supports MDIO, so replace the current test with a generic property in the device-tree that indicates such support. Signed-off-by: Benjamin Herrenschmidt Acked-by: Stefan Roese Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/rgmii.c | 20 +++++++++++--------- drivers/net/ibm_newemac/rgmii.h | 5 +++-- 2 files changed, 14 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/rgmii.c b/drivers/net/ibm_newemac/rgmii.c index de416951a43..32872697858 100644 --- a/drivers/net/ibm_newemac/rgmii.c +++ b/drivers/net/ibm_newemac/rgmii.c @@ -140,7 +140,7 @@ void rgmii_get_mdio(struct of_device *ofdev, int input) RGMII_DBG2(dev, "get_mdio(%d)" NL, input); - if (dev->type != RGMII_AXON) + if (!(dev->flags & EMAC_RGMII_FLAG_HAS_MDIO)) return; mutex_lock(&dev->lock); @@ -161,7 +161,7 @@ void rgmii_put_mdio(struct of_device *ofdev, int input) RGMII_DBG2(dev, "put_mdio(%d)" NL, input); - if (dev->type != RGMII_AXON) + if (!(dev->flags & EMAC_RGMII_FLAG_HAS_MDIO)) return; fer = in_be32(&p->fer); @@ -250,11 +250,13 @@ static int __devinit rgmii_probe(struct of_device *ofdev, goto err_free; } - /* Check for RGMII type */ + /* Check for RGMII flags */ + if (of_get_property(ofdev->node, "has-mdio", NULL)) + dev->flags |= EMAC_RGMII_FLAG_HAS_MDIO; + + /* CAB lacks the right properties, fix this up */ if (of_device_is_compatible(ofdev->node, "ibm,rgmii-axon")) - dev->type = RGMII_AXON; - else - dev->type = RGMII_STANDARD; + dev->flags |= EMAC_RGMII_FLAG_HAS_MDIO; DBG2(dev, " Boot FER = 0x%08x, SSR = 0x%08x\n", in_be32(&dev->base->fer), in_be32(&dev->base->ssr)); @@ -263,9 +265,9 @@ static int __devinit rgmii_probe(struct of_device *ofdev, out_be32(&dev->base->fer, 0); printk(KERN_INFO - "RGMII %s %s initialized\n", - dev->type == RGMII_STANDARD ? "standard" : "axon", - ofdev->node->full_name); + "RGMII %s initialized with%s MDIO support\n", + ofdev->node->full_name, + (dev->flags & EMAC_RGMII_FLAG_HAS_MDIO) ? "" : "out"); wmb(); dev_set_drvdata(&ofdev->dev, dev); diff --git a/drivers/net/ibm_newemac/rgmii.h b/drivers/net/ibm_newemac/rgmii.h index 57806833121..44a0f201064 100644 --- a/drivers/net/ibm_newemac/rgmii.h +++ b/drivers/net/ibm_newemac/rgmii.h @@ -35,8 +35,9 @@ struct rgmii_regs { struct rgmii_instance { struct rgmii_regs __iomem *base; - /* Type of RGMII bridge */ - int type; + /* RGMII bridge flags */ + int flags; +#define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001 /* Only one EMAC whacks us at a time */ struct mutex lock; -- cgit v1.2.3 From bff713b562d495658093f1716a80c6ad76920e8b Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 5 Dec 2007 11:14:29 +1100 Subject: ibm_newemac: Cleanup/fix support for STACR register variants There are a few variants of the STACR register that affect more than just the "AXON" version of EMAC. Replace the current test of various chip models with tests for generic properties in the device-tree. Signed-off-by: Benjamin Herrenschmidt Acked-by: Stefan Roese Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/core.c | 23 +++++++++++++---------- drivers/net/ibm_newemac/core.h | 6 +++--- 2 files changed, 16 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index e0eae09febf..ac9fd46509c 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -711,7 +711,7 @@ static int __emac_mdio_read(struct emac_instance *dev, u8 id, u8 reg) r = EMAC_STACR_BASE(dev->opb_bus_freq); if (emac_has_feature(dev, EMAC_FTR_STACR_OC_INVERT)) r |= EMAC_STACR_OC; - if (emac_has_feature(dev, EMAC_FTR_HAS_AXON_STACR)) + if (emac_has_feature(dev, EMAC_FTR_HAS_NEW_STACR)) r |= EMACX_STACR_STAC_READ; else r |= EMAC_STACR_STAC_READ; @@ -783,7 +783,7 @@ static void __emac_mdio_write(struct emac_instance *dev, u8 id, u8 reg, r = EMAC_STACR_BASE(dev->opb_bus_freq); if (emac_has_feature(dev, EMAC_FTR_STACR_OC_INVERT)) r |= EMAC_STACR_OC; - if (emac_has_feature(dev, EMAC_FTR_HAS_AXON_STACR)) + if (emac_has_feature(dev, EMAC_FTR_HAS_NEW_STACR)) r |= EMACX_STACR_STAC_WRITE; else r |= EMAC_STACR_STAC_WRITE; @@ -2480,16 +2480,19 @@ static int __devinit emac_init_config(struct emac_instance *dev) /* Check EMAC version */ if (of_device_is_compatible(np, "ibm,emac4")) dev->features |= EMAC_FTR_EMAC4; - if (of_device_is_compatible(np, "ibm,emac-axon") - || of_device_is_compatible(np, "ibm,emac-440epx")) - dev->features |= EMAC_FTR_HAS_AXON_STACR - | EMAC_FTR_STACR_OC_INVERT; - if (of_device_is_compatible(np, "ibm,emac-440spe")) + + /* Fixup some feature bits based on the device tree */ + if (of_get_property(np, "has-inverted-stacr-oc", NULL)) dev->features |= EMAC_FTR_STACR_OC_INVERT; + if (of_get_property(np, "has-new-stacr-staopc", NULL)) + dev->features |= EMAC_FTR_HAS_NEW_STACR; - /* Fixup some feature bits based on the device tree and verify - * we have support for them compiled in - */ + /* CAB lacks the appropriate properties */ + if (of_device_is_compatible(np, "ibm,emac-axon")) + dev->features |= EMAC_FTR_HAS_NEW_STACR | + EMAC_FTR_STACR_OC_INVERT; + + /* Enable TAH/ZMII/RGMII features as found */ if (dev->tah_ph != 0) { #ifdef CONFIG_IBM_NEW_EMAC_TAH dev->features |= EMAC_FTR_HAS_TAH; diff --git a/drivers/net/ibm_newemac/core.h b/drivers/net/ibm_newemac/core.h index a010b2463fd..04105f939cf 100644 --- a/drivers/net/ibm_newemac/core.h +++ b/drivers/net/ibm_newemac/core.h @@ -293,9 +293,9 @@ struct emac_instance { */ #define EMAC_FTR_HAS_RGMII 0x00000020 /* - * Set if we have axon-type STACR + * Set if we have new type STACR with STAOPC */ -#define EMAC_FTR_HAS_AXON_STACR 0x00000040 +#define EMAC_FTR_HAS_NEW_STACR 0x00000040 /* Right now, we don't quite handle the always/possible masks on the @@ -307,7 +307,7 @@ enum { EMAC_FTRS_POSSIBLE = #ifdef CONFIG_IBM_NEW_EMAC_EMAC4 - EMAC_FTR_EMAC4 | EMAC_FTR_HAS_AXON_STACR | + EMAC_FTR_EMAC4 | EMAC_FTR_HAS_NEW_STACR | EMAC_FTR_STACR_OC_INVERT | #endif #ifdef CONFIG_IBM_NEW_EMAC_TAH -- cgit v1.2.3 From 3d722562d734834282bccd97e0badd213ec311e9 Mon Sep 17 00:00:00 2001 From: Hugh Blemings Date: Wed, 5 Dec 2007 11:14:30 +1100 Subject: ibm_newemac: Skip EMACs that are marked unused by the firmware Depending on how the 44x processors are wired, some EMAC cells might not be useable (and not connected to a PHY). However, some device-trees may choose to still expose them (since their registers are present in the MMIO space) but with an "unused" property in them. Signed-off-by: Hugh Blemings Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/core.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index ac9fd46509c..a77207f1967 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -2550,6 +2550,10 @@ static int __devinit emac_probe(struct of_device *ofdev, struct device_node **blist = NULL; int err, i; + /* Skip unused/unwired EMACS */ + if (of_get_property(np, "unused", NULL)) + return -ENODEV; + /* Find ourselves in the bootlist if we are there */ for (i = 0; i < EMAC_BOOT_LIST_SIZE; i++) if (emac_boot_list[i] == np) -- cgit v1.2.3 From 4696c3c406a8b32112f8e1f70b3db1114950dcb1 Mon Sep 17 00:00:00 2001 From: Valentine Barshak Date: Wed, 5 Dec 2007 11:14:31 +1100 Subject: ibm_newemac: Correct opb_bus_freq value The EMAC4_MR1_OBCI(freq) macro expects freg in MHz, while opb_bus_freq is kept in Hz. Correct this. Signed-off-by: Valentine Barshak Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index a77207f1967..9642931c66e 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -402,7 +402,7 @@ static u32 __emac_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_s static u32 __emac4_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_size) { u32 ret = EMAC_MR1_VLE | EMAC_MR1_IST | EMAC4_MR1_TR | - EMAC4_MR1_OBCI(dev->opb_bus_freq); + EMAC4_MR1_OBCI(dev->opb_bus_freq / 1000000); DBG2(dev, "__emac4_calc_base_mr1" NL); -- cgit v1.2.3 From 63b6cad795e0a34e8670291943df8a6f653c1931 Mon Sep 17 00:00:00 2001 From: Valentine Barshak Date: Wed, 5 Dec 2007 11:14:31 +1100 Subject: ibm_newemac: Fix typo reading TAH channel info This patch fixes a typo in ibm_newemac/core.c (tah_port should be used instead of tah_ph) Signed-off-by: Valentine Barshak Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index 9642931c66e..7a620e5aaf3 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -2442,7 +2442,7 @@ static int __devinit emac_init_config(struct emac_instance *dev) if (emac_read_uint_prop(np, "tah-device", &dev->tah_ph, 0)) dev->tah_ph = 0; if (emac_read_uint_prop(np, "tah-channel", &dev->tah_port, 0)) - dev->tah_ph = 0; + dev->tah_port = 0; if (emac_read_uint_prop(np, "mdio-device", &dev->mdio_ph, 0)) dev->mdio_ph = 0; if (emac_read_uint_prop(np, "zmii-device", &dev->zmii_ph, 0)) -- cgit v1.2.3 From d09e18bc194c3fa8ae880df4567c719c36a73e9e Mon Sep 17 00:00:00 2001 From: Valentine Barshak Date: Wed, 5 Dec 2007 11:14:32 +1100 Subject: ibm_newemac: Call dev_set_drvdata() before tah_reset() The patch moves dev_set_drvdata(&ofdev->dev, dev) up before tah_reset(ofdev) is called to avoid a NULL pointer dereference, since tah_reset uses drvdata. Signed-off-by: Valentine Barshak Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/tah.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/tah.c b/drivers/net/ibm_newemac/tah.c index f161fb100e8..6e35cbe1593 100644 --- a/drivers/net/ibm_newemac/tah.c +++ b/drivers/net/ibm_newemac/tah.c @@ -116,13 +116,14 @@ static int __devinit tah_probe(struct of_device *ofdev, goto err_free; } + dev_set_drvdata(&ofdev->dev, dev); + /* Initialize TAH and enable IPv4 checksum verification, no TSO yet */ tah_reset(ofdev); printk(KERN_INFO "TAH %s initialized\n", ofdev->node->full_name); wmb(); - dev_set_drvdata(&ofdev->dev, dev); return 0; -- cgit v1.2.3 From 17cf803a57c89c5afe6d5299ac9416683c3240dd Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 5 Dec 2007 11:14:33 +1100 Subject: ibm_newemac: Update file headers copyright notices This updates the copyright notices of the new EMAC driver to avoid confusion as who is to be blamed for new bugs. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Jeff Garzik --- drivers/net/ibm_newemac/core.c | 5 +++++ drivers/net/ibm_newemac/core.h | 5 +++++ drivers/net/ibm_newemac/debug.c | 5 +++++ drivers/net/ibm_newemac/debug.h | 5 +++++ drivers/net/ibm_newemac/emac.h | 5 +++++ drivers/net/ibm_newemac/mal.c | 5 +++++ drivers/net/ibm_newemac/mal.h | 5 +++++ drivers/net/ibm_newemac/phy.c | 5 +++++ drivers/net/ibm_newemac/phy.h | 5 +++++ drivers/net/ibm_newemac/rgmii.c | 5 +++++ drivers/net/ibm_newemac/rgmii.h | 5 +++++ drivers/net/ibm_newemac/tah.c | 5 +++++ drivers/net/ibm_newemac/tah.h | 5 +++++ drivers/net/ibm_newemac/zmii.c | 5 +++++ drivers/net/ibm_newemac/zmii.h | 5 +++++ 15 files changed, 75 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index 7a620e5aaf3..cb06280dced 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/core.h b/drivers/net/ibm_newemac/core.h index 04105f939cf..4e74d8287c6 100644 --- a/drivers/net/ibm_newemac/core.h +++ b/drivers/net/ibm_newemac/core.h @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/debug.c b/drivers/net/ibm_newemac/debug.c index 170524ee0f1..a2fc660ca5d 100644 --- a/drivers/net/ibm_newemac/debug.c +++ b/drivers/net/ibm_newemac/debug.c @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/debug.h b/drivers/net/ibm_newemac/debug.h index 1dd2dcbc157..b631842ec8d 100644 --- a/drivers/net/ibm_newemac/debug.h +++ b/drivers/net/ibm_newemac/debug.h @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/emac.h b/drivers/net/ibm_newemac/emac.h index bef92efeead..91cb096ab40 100644 --- a/drivers/net/ibm_newemac/emac.h +++ b/drivers/net/ibm_newemac/emac.h @@ -3,6 +3,11 @@ * * Register definitions for PowerPC 4xx on-chip ethernet contoller * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/mal.c b/drivers/net/ibm_newemac/mal.c index 9a88f71db00..6869f08c9dc 100644 --- a/drivers/net/ibm_newemac/mal.c +++ b/drivers/net/ibm_newemac/mal.c @@ -3,6 +3,11 @@ * * Memory Access Layer (MAL) support * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/mal.h b/drivers/net/ibm_newemac/mal.h index 784edb8ea82..eaa7262dc07 100644 --- a/drivers/net/ibm_newemac/mal.h +++ b/drivers/net/ibm_newemac/mal.h @@ -3,6 +3,11 @@ * * Memory Access Layer (MAL) support * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/phy.c b/drivers/net/ibm_newemac/phy.c index 9308fad76d5..37bfeea8788 100644 --- a/drivers/net/ibm_newemac/phy.c +++ b/drivers/net/ibm_newemac/phy.c @@ -8,6 +8,11 @@ * This file should be shared with other drivers or eventually * merged as the "low level" part of miilib * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * (c) 2003, Benjamin Herrenscmidt (benh@kernel.crashing.org) * (c) 2004-2005, Eugene Surovegin * diff --git a/drivers/net/ibm_newemac/phy.h b/drivers/net/ibm_newemac/phy.h index 6feca26afed..1b65c81f655 100644 --- a/drivers/net/ibm_newemac/phy.h +++ b/drivers/net/ibm_newemac/phy.h @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, PHY support * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Benjamin Herrenschmidt * February 2003 * diff --git a/drivers/net/ibm_newemac/rgmii.c b/drivers/net/ibm_newemac/rgmii.c index 32872697858..9bc1132fa78 100644 --- a/drivers/net/ibm_newemac/rgmii.c +++ b/drivers/net/ibm_newemac/rgmii.c @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/rgmii.h b/drivers/net/ibm_newemac/rgmii.h index 44a0f201064..c4a4b358a27 100644 --- a/drivers/net/ibm_newemac/rgmii.h +++ b/drivers/net/ibm_newemac/rgmii.h @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Based on ocp_zmii.h/ibm_emac_zmii.h * Armin Kuster akuster@mvista.com * diff --git a/drivers/net/ibm_newemac/tah.c b/drivers/net/ibm_newemac/tah.c index 6e35cbe1593..96417adec32 100644 --- a/drivers/net/ibm_newemac/tah.c +++ b/drivers/net/ibm_newemac/tah.c @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, TAH support. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright 2004 MontaVista Software, Inc. * Matt Porter * diff --git a/drivers/net/ibm_newemac/tah.h b/drivers/net/ibm_newemac/tah.h index bc41853b6e2..a068b5658da 100644 --- a/drivers/net/ibm_newemac/tah.h +++ b/drivers/net/ibm_newemac/tah.h @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, TAH support. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright 2004 MontaVista Software, Inc. * Matt Porter * diff --git a/drivers/net/ibm_newemac/zmii.c b/drivers/net/ibm_newemac/zmii.c index 0f8cfbc0c61..2ea472aeab0 100644 --- a/drivers/net/ibm_newemac/zmii.c +++ b/drivers/net/ibm_newemac/zmii.c @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin or * diff --git a/drivers/net/ibm_newemac/zmii.h b/drivers/net/ibm_newemac/zmii.h index 82a9968b1f7..6c9beba0c4b 100644 --- a/drivers/net/ibm_newemac/zmii.h +++ b/drivers/net/ibm_newemac/zmii.h @@ -3,6 +3,11 @@ * * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support. * + * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. + * + * + * Based on the arch/ppc version of the driver: + * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin or * -- cgit v1.2.3 From 7962024e9d16e9349d76b553326f3fa7be64305e Mon Sep 17 00:00:00 2001 From: Sreenivasa Honnur Date: Wed, 5 Dec 2007 23:59:28 -0500 Subject: S2io: Check for register initialization completion before accesing device registers - Making sure register initialisation is complete before proceeding further. The driver must wait until initialization is complete before attempting to access any other device registers. Signed-off-by: Surjit Reang Signed-off-by: Sreenivasa Honnur Signed-off-by: Jeff Garzik --- drivers/net/s2io-regs.h | 1 + drivers/net/s2io.c | 16 +++++++++++++++- 2 files changed, 16 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/s2io-regs.h b/drivers/net/s2io-regs.h index 01f08d726ac..f25264f2638 100644 --- a/drivers/net/s2io-regs.h +++ b/drivers/net/s2io-regs.h @@ -66,6 +66,7 @@ struct XENA_dev_config { #define ADAPTER_STATUS_RC_PRC_QUIESCENT vBIT(0xFF,16,8) #define ADAPTER_STATUS_MC_DRAM_READY s2BIT(24) #define ADAPTER_STATUS_MC_QUEUES_READY s2BIT(25) +#define ADAPTER_STATUS_RIC_RUNNING s2BIT(26) #define ADAPTER_STATUS_M_PLL_LOCK s2BIT(30) #define ADAPTER_STATUS_P_PLL_LOCK s2BIT(31) diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index d5113dd712c..121cb100f93 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -84,7 +84,7 @@ #include "s2io.h" #include "s2io-regs.h" -#define DRV_VERSION "2.0.26.6" +#define DRV_VERSION "2.0.26.10" /* S2io Driver name & version. */ static char s2io_driver_name[] = "Neterion"; @@ -1100,6 +1100,20 @@ static int init_nic(struct s2io_nic *nic) msleep(500); val64 = readq(&bar0->sw_reset); + /* Ensure that it's safe to access registers by checking + * RIC_RUNNING bit is reset. Check is valid only for XframeII. + */ + if (nic->device_type == XFRAME_II_DEVICE) { + for (i = 0; i < 50; i++) { + val64 = readq(&bar0->adapter_status); + if (!(val64 & ADAPTER_STATUS_RIC_RUNNING)) + break; + msleep(10); + } + if (i == 50) + return -ENODEV; + } + /* Enable Receiving broadcasts */ add = &bar0->mac_cfg; val64 = readq(&bar0->mac_cfg); -- cgit v1.2.3 From 994056d7aa884c742f58e2f2c17305bb01bf14e7 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 6 Dec 2007 15:02:48 +0900 Subject: ahci: fix engine reset failed message There isn't much point in reporting -EOPNOTSUPP as failure. Also the message was missing newline. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 4688dbf2d11..588ab2fd59e 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1271,9 +1271,9 @@ static int ahci_do_softreset(struct ata_link *link, unsigned int *class, /* prepare for SRST (AHCI-1.1 10.4.1) */ rc = ahci_kick_engine(ap, 1); - if (rc) + if (rc && rc != -EOPNOTSUPP) ata_link_printk(link, KERN_WARNING, - "failed to reset engine (errno=%d)", rc); + "failed to reset engine (errno=%d)\n", rc); ata_tf_init(link->device, &tf); -- cgit v1.2.3 From d1aa690a7d1afa673c3383bfcd6e96ddb350939a Mon Sep 17 00:00:00 2001 From: Peter Schwenke Date: Wed, 5 Dec 2007 10:39:49 +0900 Subject: ata_piix: add Toshiba Tecra M4 to broken suspend list Add Toshiba Tecra M4 to broken suspend list. This is from OSDL bugzilla bug 7780. Signed-off-by: Peter Schwenke Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/ata_piix.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index b538e1d22bf..bb62a588f48 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -973,6 +973,13 @@ static int piix_broken_suspend(void) DMI_MATCH(DMI_PRODUCT_NAME, "Tecra M3"), }, }, + { + .ident = "TECRA M4", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Tecra M4"), + }, + }, { .ident = "TECRA M5", .matches = { -- cgit v1.2.3 From c4f7792c021cda9bbf65d0bc2253a593fd652b91 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 6 Dec 2007 15:09:43 +0900 Subject: ahci: don't attach if ICH6 is in combined mode ICH6 R/Ms share PCI ID between piix and ahci modes and we've been allowing ahci to attach regardless of how BIOS configured it. However, enabling AHCI mode when the controller is in combined mode can result in unexpected behavior. Don't attach if the controller is in combined mode. Signed-off-by: Tejun Heo Cc: Bill Nottingham Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 588ab2fd59e..cb7853b7335 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -193,6 +193,8 @@ enum { ATA_FLAG_ACPI_SATA | ATA_FLAG_AN | ATA_FLAG_IPM, AHCI_LFLAG_COMMON = ATA_LFLAG_SKIP_D2H_BSY, + + ICH_MAP = 0x90, /* ICH MAP register */ }; struct ahci_cmd_hdr { @@ -2273,6 +2275,22 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; + if (pdev->vendor == PCI_VENDOR_ID_INTEL && + (pdev->device == 0x2652 || pdev->device == 0x2653)) { + u8 map; + + /* ICH6s share the same PCI ID for both piix and ahci + * modes. Enabling ahci mode while MAP indicates + * combined mode is a bad idea. Yield to ata_piix. + */ + pci_read_config_byte(pdev, ICH_MAP, &map); + if (map & 0x3) { + dev_printk(KERN_INFO, &pdev->dev, "controller is in " + "combined mode, can't enable AHCI mode\n"); + return -ENODEV; + } + } + hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL); if (!hpriv) return -ENOMEM; -- cgit v1.2.3 From 459ad68893a84fb0881e57919340b97edbbc3dc7 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 7 Dec 2007 12:46:23 +0900 Subject: libata: kill spurious NCQ completion detection Spurious NCQ completion detection implemented in ahci was incorrect. On AHCI receving and processing FISes and raising interrupts are not interlocked and spurious interrupts are expected. For example, if an interrupt occurs while interrupt handler is running and the running interrupt handler handles the event the new IRQ indicated, after IRQ handler finishes, it will be executed again because IRQ pending bit is set by the new interrupt but there won't be anything to process. Please read the following message for more information. http://article.gmane.org/gmane.linux.ide/26012 This patch... * Removes all spurious IRQ whining from ahci. Spurious NCQ completion detection was completely wrong. Spurious D2H Register FIS taught us that some early drives send spurious D2H Register FIS with I bit set while NCQ commands are in progress but none of recent drives does that and even the ones which show such behavior can do NCQ fine. * Kills all NCQ blacklist entries which were added because of spurious NCQ completions. I tracked down each commit and verified all removed ones are actually added because of spurious completions. WD740ADFD-00NLR1 wasn't deleted but moved upward because the drive not only had spurious NCQ completions but also is slow on sequential data transfers if NCQ is enabled. Maxtor 7V300F0 was added by 0e3dbc01d53940fe10e5a5cfec15ede3e929c918 from Alan Cox. I can only find evidences that the drive only had troubles with spuruious completions by searching the mailing list. This entry needs to be verified and removed if it doesn't have other NCQ related problems. Signed-off-by: Tejun Heo Cc: Alan Cox Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 74 ++--------------------------------------------- drivers/ata/libata-core.c | 18 +----------- 2 files changed, 4 insertions(+), 88 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index cb7853b7335..54f38c21dd9 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1640,7 +1640,7 @@ static void ahci_port_intr(struct ata_port *ap) struct ahci_host_priv *hpriv = ap->host->private_data; int resetting = !!(ap->pflags & ATA_PFLAG_RESETTING); u32 status, qc_active; - int rc, known_irq = 0; + int rc; status = readl(port_mmio + PORT_IRQ_STAT); writel(status, port_mmio + PORT_IRQ_STAT); @@ -1698,80 +1698,12 @@ static void ahci_port_intr(struct ata_port *ap) rc = ata_qc_complete_multiple(ap, qc_active, NULL); - /* If resetting, spurious or invalid completions are expected, - * return unconditionally. - */ - if (resetting) - return; - - if (rc > 0) - return; - if (rc < 0) { + /* while resetting, invalid completions are expected */ + if (unlikely(rc < 0 && !resetting)) { ehi->err_mask |= AC_ERR_HSM; ehi->action |= ATA_EH_SOFTRESET; ata_port_freeze(ap); - return; - } - - /* hmmm... a spurious interrupt */ - - /* if !NCQ, ignore. No modern ATA device has broken HSM - * implementation for non-NCQ commands. - */ - if (!ap->link.sactive) - return; - - if (status & PORT_IRQ_D2H_REG_FIS) { - if (!pp->ncq_saw_d2h) - ata_port_printk(ap, KERN_INFO, - "D2H reg with I during NCQ, " - "this message won't be printed again\n"); - pp->ncq_saw_d2h = 1; - known_irq = 1; - } - - if (status & PORT_IRQ_DMAS_FIS) { - if (!pp->ncq_saw_dmas) - ata_port_printk(ap, KERN_INFO, - "DMAS FIS during NCQ, " - "this message won't be printed again\n"); - pp->ncq_saw_dmas = 1; - known_irq = 1; } - - if (status & PORT_IRQ_SDB_FIS) { - const __le32 *f = pp->rx_fis + RX_FIS_SDB; - - if (le32_to_cpu(f[1])) { - /* SDB FIS containing spurious completions - * might be dangerous, whine and fail commands - * with HSM violation. EH will turn off NCQ - * after several such failures. - */ - ata_ehi_push_desc(ehi, - "spurious completions during NCQ " - "issue=0x%x SAct=0x%x FIS=%08x:%08x", - readl(port_mmio + PORT_CMD_ISSUE), - readl(port_mmio + PORT_SCR_ACT), - le32_to_cpu(f[0]), le32_to_cpu(f[1])); - ehi->err_mask |= AC_ERR_HSM; - ehi->action |= ATA_EH_SOFTRESET; - ata_port_freeze(ap); - } else { - if (!pp->ncq_saw_sdb) - ata_port_printk(ap, KERN_INFO, - "spurious SDB FIS %08x:%08x during NCQ, " - "this message won't be printed again\n", - le32_to_cpu(f[0]), le32_to_cpu(f[1])); - pp->ncq_saw_sdb = 1; - } - known_irq = 1; - } - - if (!known_irq) - ata_port_printk(ap, KERN_INFO, "spurious interrupt " - "(irq_stat 0x%x active_tag 0x%x sactive 0x%x)\n", - status, ap->link.active_tag, ap->link.sactive); } static void ahci_irq_clear(struct ata_port *ap) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index b514a80f137..e4dea8623a7 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4140,6 +4140,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { /* Devices where NCQ should be avoided */ /* NCQ is slow */ { "WDC WD740ADFD-00", NULL, ATA_HORKAGE_NONCQ }, + { "WDC WD740ADFD-00NLR1", NULL, ATA_HORKAGE_NONCQ, }, /* http://thread.gmane.org/gmane.linux.ide/14907 */ { "FUJITSU MHT2060BH", NULL, ATA_HORKAGE_NONCQ }, /* NCQ is broken */ @@ -4154,23 +4155,6 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "HTS541060G9SA00", "MB3OC60D", ATA_HORKAGE_NONCQ, }, { "HTS541080G9SA00", "MB4OC60D", ATA_HORKAGE_NONCQ, }, { "HTS541010G9SA00", "MBZOC60D", ATA_HORKAGE_NONCQ, }, - /* Drives which do spurious command completion */ - { "HTS541680J9SA00", "SB2IC7EP", ATA_HORKAGE_NONCQ, }, - { "HTS541612J9SA00", "SBDIC7JP", ATA_HORKAGE_NONCQ, }, - { "HDT722516DLA380", "V43OA96A", ATA_HORKAGE_NONCQ, }, - { "Hitachi HTS541616J9SA00", "SB4OC70P", ATA_HORKAGE_NONCQ, }, - { "Hitachi HTS542525K9SA00", "BBFOC31P", ATA_HORKAGE_NONCQ, }, - { "WDC WD740ADFD-00NLR1", NULL, ATA_HORKAGE_NONCQ, }, - { "WDC WD3200AAJS-00RYA0", "12.01B01", ATA_HORKAGE_NONCQ, }, - { "FUJITSU MHV2080BH", "00840028", ATA_HORKAGE_NONCQ, }, - { "ST9120822AS", "3.CLF", ATA_HORKAGE_NONCQ, }, - { "ST9160821AS", "3.CLF", ATA_HORKAGE_NONCQ, }, - { "ST9160821AS", "3.ALD", ATA_HORKAGE_NONCQ, }, - { "ST9160821AS", "3.CCD", ATA_HORKAGE_NONCQ, }, - { "ST3160812AS", "3.ADJ", ATA_HORKAGE_NONCQ, }, - { "ST980813AS", "3.ADB", ATA_HORKAGE_NONCQ, }, - { "SAMSUNG HD401LJ", "ZZ100-15", ATA_HORKAGE_NONCQ, }, - { "Maxtor 7V300F0", "VA111900", ATA_HORKAGE_NONCQ, }, /* devices which puke on READ_NATIVE_MAX */ { "HDS724040KLSA80", "KFAOA20N", ATA_HORKAGE_BROKEN_HPA, }, -- cgit v1.2.3