From 6c9e5eb522bca694a0311898039d2707e9bc7783 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Wed, 30 Nov 2005 16:42:55 -0500 Subject: [libata sata_promise] minor whitespace cleanup --- drivers/scsi/sata_promise.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c index 8a8e3e3ef0e..25e56fb9ad9 100644 --- a/drivers/scsi/sata_promise.c +++ b/drivers/scsi/sata_promise.c @@ -703,7 +703,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e probe_ent->port[3].scr_addr = base + 0x700; break; case board_2037x: - probe_ent->n_ports = 2; + probe_ent->n_ports = 2; break; case board_20619: probe_ent->n_ports = 4; @@ -713,7 +713,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e probe_ent->port[2].scr_addr = base + 0x600; probe_ent->port[3].scr_addr = base + 0x700; - break; + break; default: BUG(); break; -- cgit v1.2.3 From 98ac62defe529d04a192688f40d801a2d8fbcf98 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Mon, 28 Nov 2005 10:06:23 +0100 Subject: [PATCH] mark several libata datastructures const Hi, the patch below marks several libata (and libata-driver) structures const so that they end up in the .rodata segment and don't false-share cachelines with things that get dirtied often. Signed-off-by: Arjan van de Ven Signed-off-by: Jeff Garzik --- drivers/scsi/ahci.c | 2 +- drivers/scsi/libata-core.c | 4 ++-- drivers/scsi/libata-scsi.c | 6 +++--- drivers/scsi/sata_mv.c | 2 +- drivers/scsi/sata_promise.c | 2 +- drivers/scsi/sata_qstor.c | 2 +- drivers/scsi/sata_sil.c | 2 +- drivers/scsi/sata_sx4.c | 2 +- 8 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index 83467a05dc8..cfbdd3f071b 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -243,7 +243,7 @@ static const struct ata_port_operations ahci_ops = { .port_stop = ahci_port_stop, }; -static struct ata_port_info ahci_port_info[] = { +static const struct ata_port_info ahci_port_info[] = { /* board_ahci */ { .sht = &ahci_sht, diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 9f27e8d0e77..11ed6fa2709 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -605,7 +605,7 @@ void ata_rwcmd_protocol(struct ata_queued_cmd *qc) tf->command = ata_rw_cmds[index + lba48 + write]; } -static const char * xfer_mode_str[] = { +static const char * const xfer_mode_str[] = { "UDMA/16", "UDMA/25", "UDMA/33", @@ -2083,7 +2083,7 @@ static void ata_pr_blacklisted(const struct ata_port *ap, ap->id, dev->devno); } -static const char * ata_dma_blacklist [] = { +static const char * const ata_dma_blacklist [] = { "WDC AC11000H", "WDC AC22100H", "WDC AC32500H", diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index 3b4ca55a333..b21b8854072 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -418,7 +418,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, int i; /* Based on the 3ware driver translation table */ - static unsigned char sense_table[][4] = { + static const unsigned char sense_table[][4] = { /* BBD|ECC|ID|MAR */ {0xd1, ABORTED_COMMAND, 0x00, 0x00}, // Device busy Aborted command /* BBD|ECC|ID */ @@ -449,7 +449,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, {0x80, MEDIUM_ERROR, 0x11, 0x04}, // Block marked bad Medium error, unrecovered read error {0xFF, 0xFF, 0xFF, 0xFF}, // END mark }; - static unsigned char stat_table[][4] = { + static const unsigned char stat_table[][4] = { /* Must be first because BUSY means no other bits valid */ {0x80, ABORTED_COMMAND, 0x47, 0x00}, // Busy, fake parity for now {0x20, HARDWARE_ERROR, 0x00, 0x00}, // Device fault @@ -1532,7 +1532,7 @@ unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf, return 0; } -static const char *inq_83_str = "Linux ATA-SCSI simulator"; +static const char * const inq_83_str = "Linux ATA-SCSI simulator"; /** * ata_scsiop_inq_83 - Simulate INQUIRY EVPD page 83, device identity diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c index ab7432a5778..c94176693d1 100644 --- a/drivers/scsi/sata_mv.c +++ b/drivers/scsi/sata_mv.c @@ -430,7 +430,7 @@ static const struct ata_port_operations mv6_ops = { .host_stop = mv_host_stop, }; -static struct ata_port_info mv_port_info[] = { +static const struct ata_port_info mv_port_info[] = { { /* chip_504x */ .sht = &mv_sht, .host_flags = MV_COMMON_FLAGS, diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c index 25e56fb9ad9..02089069b0f 100644 --- a/drivers/scsi/sata_promise.c +++ b/drivers/scsi/sata_promise.c @@ -158,7 +158,7 @@ static const struct ata_port_operations pdc_pata_ops = { .host_stop = ata_pci_host_stop, }; -static struct ata_port_info pdc_port_info[] = { +static const struct ata_port_info pdc_port_info[] = { /* board_2037x */ { .sht = &pdc_ata_sht, diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c index a8987f5ff5c..6b9c3ae07cb 100644 --- a/drivers/scsi/sata_qstor.c +++ b/drivers/scsi/sata_qstor.c @@ -170,7 +170,7 @@ static const struct ata_port_operations qs_ata_ops = { .bmdma_status = qs_bmdma_status, }; -static struct ata_port_info qs_port_info[] = { +static const struct ata_port_info qs_port_info[] = { /* board_2068_idx */ { .sht = &qs_ata_sht, diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c index 36091868560..d2053487c73 100644 --- a/drivers/scsi/sata_sil.c +++ b/drivers/scsi/sata_sil.c @@ -176,7 +176,7 @@ static const struct ata_port_operations sil_ops = { .host_stop = ata_pci_host_stop, }; -static struct ata_port_info sil_port_info[] = { +static const struct ata_port_info sil_port_info[] = { /* sil_3112 */ { .sht = &sil_sht, diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c index dcc3ad9a9d6..7c4b5357551 100644 --- a/drivers/scsi/sata_sx4.c +++ b/drivers/scsi/sata_sx4.c @@ -215,7 +215,7 @@ static const struct ata_port_operations pdc_20621_ops = { .host_stop = pdc20621_host_stop, }; -static struct ata_port_info pdc_port_info[] = { +static const struct ata_port_info pdc_port_info[] = { /* board_20621 */ { .sht = &pdc_sata_sht, -- cgit v1.2.3 From c14b8331ec4843e4f2b67a4d847a0d812a50e43c Mon Sep 17 00:00:00 2001 From: Albert Lee Date: Mon, 5 Dec 2005 15:36:08 +0800 Subject: [PATCH] libata: minor patch before moving err_mask - add qc to ata_pio_poll() - reorder the initialization of qc in ata_pio_complete() Signed-off-by: Albert Lee =================== Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 11ed6fa2709..0a959566f96 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2802,10 +2802,14 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask) static unsigned long ata_pio_poll(struct ata_port *ap) { + struct ata_queued_cmd *qc; u8 status; unsigned int poll_state = HSM_ST_UNKNOWN; unsigned int reg_state = HSM_ST_UNKNOWN; + qc = ata_qc_from_tag(ap, ap->active_tag); + assert(qc != NULL); + switch (ap->hsm_task_state) { case HSM_ST: case HSM_ST_POLL: @@ -2870,15 +2874,15 @@ static int ata_pio_complete (struct ata_port *ap) } } + qc = ata_qc_from_tag(ap, ap->active_tag); + assert(qc != NULL); + drv_stat = ata_wait_idle(ap); if (!ata_ok(drv_stat)) { ap->hsm_task_state = HSM_ST_ERR; return 0; } - qc = ata_qc_from_tag(ap, ap->active_tag); - assert(qc != NULL); - ap->hsm_task_state = HSM_ST_IDLE; ata_poll_qc_complete(qc, 0); -- cgit v1.2.3 From a22e2eb0710798009b8e696ae911aef745089dd6 Mon Sep 17 00:00:00 2001 From: Albert Lee Date: Mon, 5 Dec 2005 15:38:02 +0800 Subject: [PATCH] libata: move err_mask to ata_queued_cmd - remove err_mask from the parameter list of the complete functions - move err_mask to ata_queued_cmd - initialize qc->err_mask when needed - for each function call to ata_qc_complete(), replace the err_mask parameter with qc->err_mask. Signed-off-by: Albert Lee =============== Signed-off-by: Jeff Garzik --- drivers/scsi/ahci.c | 12 ++++++++---- drivers/scsi/libata-core.c | 32 +++++++++++++++++++------------- drivers/scsi/libata-scsi.c | 18 ++++++++++-------- drivers/scsi/libata.h | 2 +- drivers/scsi/pdc_adma.c | 11 +++++------ drivers/scsi/sata_mv.c | 9 ++++++--- drivers/scsi/sata_promise.c | 14 ++++++++------ drivers/scsi/sata_qstor.c | 7 ++++--- drivers/scsi/sata_sil24.c | 15 ++++++++++----- drivers/scsi/sata_sx4.c | 15 ++++++++++----- include/linux/libata.h | 7 +++++-- 11 files changed, 86 insertions(+), 56 deletions(-) diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index cfbdd3f071b..887eaa2a3eb 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -643,7 +643,8 @@ static void ahci_eng_timeout(struct ata_port *ap) * not being called from the SCSI EH. */ qc->scsidone = scsi_finish_command; - ata_qc_complete(qc, AC_ERR_OTHER); + qc->err_mask |= AC_ERR_OTHER; + ata_qc_complete(qc); } spin_unlock_irqrestore(&host_set->lock, flags); @@ -664,7 +665,8 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc) ci = readl(port_mmio + PORT_CMD_ISSUE); if (likely((ci & 0x1) == 0)) { if (qc) { - ata_qc_complete(qc, 0); + assert(qc->err_mask == 0); + ata_qc_complete(qc); qc = NULL; } } @@ -681,8 +683,10 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc) /* command processing has stopped due to error; restart */ ahci_restart_port(ap, status); - if (qc) - ata_qc_complete(qc, err_mask); + if (qc) { + qc->err_mask |= AC_ERR_OTHER; + ata_qc_complete(qc); + } } return 1; diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 0a959566f96..f56b4daf418 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -1053,9 +1053,9 @@ static int ata_qc_wait_err(struct ata_queued_cmd *qc, if (wait_for_completion_timeout(wait, 30 * HZ) < 1) { /* timeout handling */ - unsigned int err_mask = ac_err_mask(ata_chk_status(qc->ap)); + qc->err_mask |= ac_err_mask(ata_chk_status(qc->ap)); - if (!err_mask) { + if (!qc->err_mask) { printk(KERN_WARNING "ata%u: slow completion (cmd %x)\n", qc->ap->id, qc->tf.command); } else { @@ -1064,7 +1064,7 @@ static int ata_qc_wait_err(struct ata_queued_cmd *qc, rc = -EIO; } - ata_qc_complete(qc, err_mask); + ata_qc_complete(qc); } return rc; @@ -1175,6 +1175,7 @@ retry: qc->cursg_ofs = 0; qc->cursect = 0; qc->nsect = 1; + qc->err_mask = 0; goto retry; } } @@ -2777,7 +2778,7 @@ skip_map: * None. (grabs host lock) */ -void ata_poll_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask) +void ata_poll_qc_complete(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; unsigned long flags; @@ -2785,7 +2786,7 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask) spin_lock_irqsave(&ap->host_set->lock, flags); ap->flags &= ~ATA_FLAG_NOINTR; ata_irq_on(ap); - ata_qc_complete(qc, err_mask); + ata_qc_complete(qc); spin_unlock_irqrestore(&ap->host_set->lock, flags); } @@ -2885,7 +2886,8 @@ static int ata_pio_complete (struct ata_port *ap) ap->hsm_task_state = HSM_ST_IDLE; - ata_poll_qc_complete(qc, 0); + assert(qc->err_mask == 0); + ata_poll_qc_complete(qc); /* another command may start at this point */ @@ -3261,7 +3263,8 @@ static void ata_pio_error(struct ata_port *ap) ap->hsm_task_state = HSM_ST_IDLE; - ata_poll_qc_complete(qc, AC_ERR_ATA_BUS); + qc->err_mask |= AC_ERR_ATA_BUS; + ata_poll_qc_complete(qc); } static void ata_pio_task(void *_data) @@ -3363,7 +3366,8 @@ static void ata_qc_timeout(struct ata_queued_cmd *qc) ap->id, qc->tf.command, drv_stat, host_stat); /* complete taskfile transaction */ - ata_qc_complete(qc, ac_err_mask(drv_stat)); + qc->err_mask |= ac_err_mask(drv_stat); + ata_qc_complete(qc); break; } @@ -3462,7 +3466,7 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap, return qc; } -int ata_qc_complete_noop(struct ata_queued_cmd *qc, unsigned int err_mask) +int ata_qc_complete_noop(struct ata_queued_cmd *qc) { return 0; } @@ -3521,7 +3525,7 @@ void ata_qc_free(struct ata_queued_cmd *qc) * spin_lock_irqsave(host_set lock) */ -void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask) +void ata_qc_complete(struct ata_queued_cmd *qc) { int rc; @@ -3538,7 +3542,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask) qc->flags &= ~ATA_QCFLAG_ACTIVE; /* call completion callback */ - rc = qc->complete_fn(qc, err_mask); + rc = qc->complete_fn(qc); /* if callback indicates not to complete command (non-zero), * return immediately @@ -3976,7 +3980,8 @@ inline unsigned int ata_host_intr (struct ata_port *ap, ap->ops->irq_clear(ap); /* complete taskfile transaction */ - ata_qc_complete(qc, ac_err_mask(status)); + qc->err_mask |= ac_err_mask(status); + ata_qc_complete(qc); break; default: @@ -4111,7 +4116,8 @@ static void atapi_packet_task(void *_data) err_out_status: status = ata_chk_status(ap); err_out: - ata_poll_qc_complete(qc, __ac_err_mask(status)); + qc->err_mask |= __ac_err_mask(status); + ata_poll_qc_complete(qc); } diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index ef763ed9a0e..2aef41112c4 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -1203,12 +1203,11 @@ nothing_to_do: return 1; } -static int ata_scsi_qc_complete(struct ata_queued_cmd *qc, - unsigned int err_mask) +static int ata_scsi_qc_complete(struct ata_queued_cmd *qc) { struct scsi_cmnd *cmd = qc->scsicmd; u8 *cdb = cmd->cmnd; - int need_sense = (err_mask != 0); + int need_sense = (qc->err_mask != 0); /* For ATA pass thru (SAT) commands, generate a sense block if * user mandated it or if there's an error. Note that if we @@ -1955,9 +1954,9 @@ void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8 done(cmd); } -static int atapi_sense_complete(struct ata_queued_cmd *qc,unsigned int err_mask) +static int atapi_sense_complete(struct ata_queued_cmd *qc) { - if (err_mask && ((err_mask & AC_ERR_DEV) == 0)) + if (qc->err_mask && ((qc->err_mask & AC_ERR_DEV) == 0)) /* FIXME: not quite right; we don't want the * translation of taskfile registers into * a sense descriptors, since that's only @@ -2015,15 +2014,18 @@ static void atapi_request_sense(struct ata_queued_cmd *qc) qc->complete_fn = atapi_sense_complete; - if (ata_qc_issue(qc)) - ata_qc_complete(qc, AC_ERR_OTHER); + if (ata_qc_issue(qc)) { + qc->err_mask |= AC_ERR_OTHER; + ata_qc_complete(qc); + } DPRINTK("EXIT\n"); } -static int atapi_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask) +static int atapi_qc_complete(struct ata_queued_cmd *qc) { struct scsi_cmnd *cmd = qc->scsicmd; + unsigned int err_mask = qc->err_mask; VPRINTK("ENTER, err_mask 0x%X\n", err_mask); diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h index 8ebaa694d18..686255df76b 100644 --- a/drivers/scsi/libata.h +++ b/drivers/scsi/libata.h @@ -39,7 +39,7 @@ struct ata_scsi_args { /* libata-core.c */ extern int atapi_enabled; -extern int ata_qc_complete_noop(struct ata_queued_cmd *qc, unsigned int err_mask); +extern int ata_qc_complete_noop(struct ata_queued_cmd *qc); extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap, struct ata_device *dev); extern void ata_rwcmd_protocol(struct ata_queued_cmd *qc); diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c index f557f17ca00..e8df0c9ec1e 100644 --- a/drivers/scsi/pdc_adma.c +++ b/drivers/scsi/pdc_adma.c @@ -464,14 +464,12 @@ static inline unsigned int adma_intr_pkt(struct ata_host_set *host_set) continue; qc = ata_qc_from_tag(ap, ap->active_tag); if (qc && (!(qc->tf.ctl & ATA_NIEN))) { - unsigned int err_mask = 0; - if ((status & (aPERR | aPSD | aUIRQ))) - err_mask = AC_ERR_OTHER; + qc->err_mask |= AC_ERR_OTHER; else if (pp->pkt[0] != cDONE) - err_mask = AC_ERR_OTHER; + qc->err_mask |= AC_ERR_OTHER; - ata_qc_complete(qc, err_mask); + ata_qc_complete(qc); } } return handled; @@ -501,7 +499,8 @@ static inline unsigned int adma_intr_mmio(struct ata_host_set *host_set) /* complete taskfile transaction */ pp->state = adma_state_idle; - ata_qc_complete(qc, ac_err_mask(status)); + qc->err_mask |= ac_err_mask(status); + ata_qc_complete(qc); handled = 1; } } diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c index c94176693d1..3e7866b51ac 100644 --- a/drivers/scsi/sata_mv.c +++ b/drivers/scsi/sata_mv.c @@ -1242,8 +1242,10 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant, VPRINTK("port %u IRQ found for qc, " "ata_status 0x%x\n", port,ata_status); /* mark qc status appropriately */ - if (!(qc->tf.ctl & ATA_NIEN)) - ata_qc_complete(qc, err_mask); + if (!(qc->tf.ctl & ATA_NIEN)) { + qc->err_mask |= err_mask; + ata_qc_complete(qc); + } } } } @@ -1864,7 +1866,8 @@ static void mv_eng_timeout(struct ata_port *ap) */ spin_lock_irqsave(&ap->host_set->lock, flags); qc->scsidone = scsi_finish_command; - ata_qc_complete(qc, AC_ERR_OTHER); + qc->err_mask |= AC_ERR_OTHER; + ata_qc_complete(qc); spin_unlock_irqrestore(&ap->host_set->lock, flags); } } diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c index 02089069b0f..e2e146a14f9 100644 --- a/drivers/scsi/sata_promise.c +++ b/drivers/scsi/sata_promise.c @@ -401,7 +401,8 @@ static void pdc_eng_timeout(struct ata_port *ap) case ATA_PROT_NODATA: printk(KERN_ERR "ata%u: command timeout\n", ap->id); drv_stat = ata_wait_idle(ap); - ata_qc_complete(qc, __ac_err_mask(drv_stat)); + qc->err_mask |= __ac_err_mask(drv_stat); + ata_qc_complete(qc); break; default: @@ -410,7 +411,8 @@ static void pdc_eng_timeout(struct ata_port *ap) printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n", ap->id, qc->tf.command, drv_stat); - ata_qc_complete(qc, ac_err_mask(drv_stat)); + qc->err_mask |= ac_err_mask(drv_stat); + ata_qc_complete(qc); break; } @@ -422,21 +424,21 @@ out: static inline unsigned int pdc_host_intr( struct ata_port *ap, struct ata_queued_cmd *qc) { - unsigned int handled = 0, err_mask = 0; + unsigned int handled = 0; u32 tmp; void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL; tmp = readl(mmio); if (tmp & PDC_ERR_MASK) { - err_mask = AC_ERR_DEV; + qc->err_mask |= AC_ERR_DEV; pdc_reset_port(ap); } switch (qc->tf.protocol) { case ATA_PROT_DMA: case ATA_PROT_NODATA: - err_mask |= ac_err_mask(ata_wait_idle(ap)); - ata_qc_complete(qc, err_mask); + qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); + ata_qc_complete(qc); handled = 1; break; diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c index 6b9c3ae07cb..de05e2883f9 100644 --- a/drivers/scsi/sata_qstor.c +++ b/drivers/scsi/sata_qstor.c @@ -409,8 +409,8 @@ static inline unsigned int qs_intr_pkt(struct ata_host_set *host_set) case 3: /* device error */ pp->state = qs_state_idle; qs_enter_reg_mode(qc->ap); - ata_qc_complete(qc, - ac_err_mask(sDST)); + qc->err_mask |= ac_err_mask(sDST); + ata_qc_complete(qc); break; default: break; @@ -447,7 +447,8 @@ static inline unsigned int qs_intr_mmio(struct ata_host_set *host_set) /* complete taskfile transaction */ pp->state = qs_state_idle; - ata_qc_complete(qc, ac_err_mask(status)); + qc->err_mask |= ac_err_mask(status); + ata_qc_complete(qc); handled = 1; } } diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c index e0d6f194f54..a0ad3ed2200 100644 --- a/drivers/scsi/sata_sil24.c +++ b/drivers/scsi/sata_sil24.c @@ -654,7 +654,8 @@ static void sil24_eng_timeout(struct ata_port *ap) */ printk(KERN_ERR "ata%u: command timeout\n", ap->id); qc->scsidone = scsi_finish_command; - ata_qc_complete(qc, AC_ERR_OTHER); + qc->err_mask |= AC_ERR_OTHER; + ata_qc_complete(qc); sil24_reset_controller(ap); } @@ -711,8 +712,10 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat) sil24_reset_controller(ap); } - if (qc) - ata_qc_complete(qc, err_mask); + if (qc) { + qc->err_mask |= err_mask; + ata_qc_complete(qc); + } } static inline void sil24_host_intr(struct ata_port *ap) @@ -734,8 +737,10 @@ static inline void sil24_host_intr(struct ata_port *ap) */ sil24_update_tf(ap); - if (qc) - ata_qc_complete(qc, ac_err_mask(pp->tf.command)); + if (qc) { + qc->err_mask |= ac_err_mask(pp->tf.command); + ata_qc_complete(qc); + } } else sil24_error_intr(ap, slot_stat); } diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c index 7c4b5357551..58da854a7c6 100644 --- a/drivers/scsi/sata_sx4.c +++ b/drivers/scsi/sata_sx4.c @@ -718,7 +718,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap, VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->id, readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); /* get drive status; clear intr; complete txn */ - ata_qc_complete(qc, ac_err_mask(ata_wait_idle(ap))); + qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); + ata_qc_complete(qc); pdc20621_pop_hdma(qc); } @@ -756,7 +757,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap, VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->id, readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); /* get drive status; clear intr; complete txn */ - ata_qc_complete(qc, ac_err_mask(ata_wait_idle(ap))); + qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); + ata_qc_complete(qc); pdc20621_pop_hdma(qc); } handled = 1; @@ -766,7 +768,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap, status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); DPRINTK("BUS_NODATA (drv_stat 0x%X)\n", status); - ata_qc_complete(qc, ac_err_mask(status)); + qc->err_mask |= ac_err_mask(status); + ata_qc_complete(qc); handled = 1; } else { @@ -881,7 +884,8 @@ static void pdc_eng_timeout(struct ata_port *ap) case ATA_PROT_DMA: case ATA_PROT_NODATA: printk(KERN_ERR "ata%u: command timeout\n", ap->id); - ata_qc_complete(qc, __ac_err_mask(ata_wait_idle(ap))); + qc->err_mask |= __ac_err_mask(ata_wait_idle(ap)); + ata_qc_complete(qc); break; default: @@ -890,7 +894,8 @@ static void pdc_eng_timeout(struct ata_port *ap) printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n", ap->id, qc->tf.command, drv_stat); - ata_qc_complete(qc, ac_err_mask(drv_stat)); + qc->err_mask |= ac_err_mask(drv_stat); + ata_qc_complete(qc); break; } diff --git a/include/linux/libata.h b/include/linux/libata.h index 83a83babff8..e18ce039cdf 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -194,7 +194,7 @@ struct ata_port; struct ata_queued_cmd; /* typedefs */ -typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc, unsigned int err_mask); +typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc); struct ata_ioports { unsigned long cmd_addr; @@ -279,6 +279,8 @@ struct ata_queued_cmd { /* DO NOT iterate over __sg manually, use ata_for_each_sg() */ struct scatterlist *__sg; + unsigned int err_mask; + ata_qc_cb_t complete_fn; struct completion *waiting; @@ -475,7 +477,7 @@ extern void ata_bmdma_start (struct ata_queued_cmd *qc); extern void ata_bmdma_stop(struct ata_queued_cmd *qc); extern u8 ata_bmdma_status(struct ata_port *ap); extern void ata_bmdma_irq_clear(struct ata_port *ap); -extern void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask); +extern void ata_qc_complete(struct ata_queued_cmd *qc); extern void ata_eng_timeout(struct ata_port *ap); extern void ata_scsi_simulate(u16 *id, struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)); @@ -667,6 +669,7 @@ static inline void ata_qc_reinit(struct ata_queued_cmd *qc) qc->cursect = qc->cursg = qc->cursg_ofs = 0; qc->nsect = 0; qc->nbytes = qc->curbytes = 0; + qc->err_mask = 0; ata_tf_init(qc->ap, &qc->tf, qc->dev->devno); } -- cgit v1.2.3 From 1c8489840e6b080e810e588423c1b6dd5913cf18 Mon Sep 17 00:00:00 2001 From: Albert Lee Date: Mon, 5 Dec 2005 15:40:15 +0800 Subject: [PATCH] libata: determine the err_mask when the error is found - move "qc->err_mask |= AC_ERR_ATA_BUS" to where the error is found - add "assert(qc->err_mask)" to ata_pio_error() to make sure qc->err_mask was available when we enter the error state Signed-off-by: Albert Lee ============ Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index f56b4daf418..cc003f2c6d9 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2830,6 +2830,7 @@ static unsigned long ata_pio_poll(struct ata_port *ap) status = ata_chk_status(ap); if (status & ATA_BUSY) { if (time_after(jiffies, ap->pio_task_timeout)) { + qc->err_mask |= AC_ERR_ATA_BUS; ap->hsm_task_state = HSM_ST_TMOUT; return 0; } @@ -2880,6 +2881,7 @@ static int ata_pio_complete (struct ata_port *ap) drv_stat = ata_wait_idle(ap); if (!ata_ok(drv_stat)) { + qc->err_mask |= __ac_err_mask(drv_stat); ap->hsm_task_state = HSM_ST_ERR; return 0; } @@ -3195,6 +3197,7 @@ static void atapi_pio_bytes(struct ata_queued_cmd *qc) err_out: printk(KERN_INFO "ata%u: dev %u: ATAPI check failed\n", ap->id, dev->devno); + qc->err_mask |= AC_ERR_ATA_BUS; ap->hsm_task_state = HSM_ST_ERR; } @@ -3244,6 +3247,7 @@ static void ata_pio_block(struct ata_port *ap) } else { /* handle BSY=0, DRQ=0 as error */ if ((status & ATA_DRQ) == 0) { + qc->err_mask |= AC_ERR_ATA_BUS; ap->hsm_task_state = HSM_ST_ERR; return; } @@ -3261,9 +3265,13 @@ static void ata_pio_error(struct ata_port *ap) qc = ata_qc_from_tag(ap, ap->active_tag); assert(qc != NULL); + /* make sure qc->err_mask is available to + * know what's wrong and recover + */ + assert(qc->err_mask); + ap->hsm_task_state = HSM_ST_IDLE; - qc->err_mask |= AC_ERR_ATA_BUS; ata_poll_qc_complete(qc); } -- cgit v1.2.3 From d8fe452b3e8e9ea6d62a3d116a092999fabae407 Mon Sep 17 00:00:00 2001 From: Albert Lee Date: Mon, 5 Dec 2005 15:42:17 +0800 Subject: [PATCH] libata: determine the err_mask directly in atapi_packet_task() - set qc->err_mask directly when we found the error - remove the code to determine err_mask from device status Signed-off-by: Albert Lee ============ Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index cc003f2c6d9..b3aedb03346 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -4083,13 +4083,17 @@ static void atapi_packet_task(void *_data) /* sleep-wait for BSY to clear */ DPRINTK("busy wait\n"); - if (ata_busy_sleep(ap, ATA_TMOUT_CDB_QUICK, ATA_TMOUT_CDB)) - goto err_out_status; + if (ata_busy_sleep(ap, ATA_TMOUT_CDB_QUICK, ATA_TMOUT_CDB)) { + qc->err_mask |= AC_ERR_ATA_BUS; + goto err_out; + } /* make sure DRQ is set */ status = ata_chk_status(ap); - if ((status & (ATA_BUSY | ATA_DRQ)) != ATA_DRQ) + if ((status & (ATA_BUSY | ATA_DRQ)) != ATA_DRQ) { + qc->err_mask |= AC_ERR_ATA_BUS; goto err_out; + } /* send SCSI cdb */ DPRINTK("send cdb\n"); @@ -4121,10 +4125,7 @@ static void atapi_packet_task(void *_data) return; -err_out_status: - status = ata_chk_status(ap); err_out: - qc->err_mask |= __ac_err_mask(status); ata_poll_qc_complete(qc); } -- cgit v1.2.3 From fe79e683ccdb29c13b3e0d18507474b4e2d9aab6 Mon Sep 17 00:00:00 2001 From: Albert Lee Date: Tue, 6 Dec 2005 11:34:59 +0800 Subject: [PATCH] libata: err_mask misc fix 1. ata_pio_complete(): It seems unnecessary to wait for the clearing of the DRQ bit. (Waiting for BSY=0 should be enough. ata_ok() also checks the correctness of the status bits later.) 2. ata_pio_block(): - added error checking, before transfering data. - minor comments fix Signed-off-by: Albert Lee ============ Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index b3aedb03346..e4c400756b2 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2865,11 +2865,11 @@ static int ata_pio_complete (struct ata_port *ap) * msecs, then chk-status again. If still busy, fall back to * HSM_ST_POLL state. */ - drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 10); - if (drv_stat & (ATA_BUSY | ATA_DRQ)) { + drv_stat = ata_busy_wait(ap, ATA_BUSY, 10); + if (drv_stat & ATA_BUSY) { msleep(2); - drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 10); - if (drv_stat & (ATA_BUSY | ATA_DRQ)) { + drv_stat = ata_busy_wait(ap, ATA_BUSY, 10); + if (drv_stat & ATA_BUSY) { ap->hsm_task_state = HSM_ST_LAST_POLL; ap->pio_task_timeout = jiffies + ATA_TMOUT_PIO; return 0; @@ -3236,8 +3236,16 @@ static void ata_pio_block(struct ata_port *ap) qc = ata_qc_from_tag(ap, ap->active_tag); assert(qc != NULL); + /* check error */ + if (status & (ATA_ERR | ATA_DF)) { + qc->err_mask |= AC_ERR_DEV; + ap->hsm_task_state = HSM_ST_ERR; + return; + } + + /* transfer data if any */ if (is_atapi_taskfile(&qc->tf)) { - /* no more data to transfer or unsupported ATAPI command */ + /* DRQ=0 means no more data to transfer */ if ((status & ATA_DRQ) == 0) { ap->hsm_task_state = HSM_ST_LAST; return; -- cgit v1.2.3