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authorJeff Garzik <jeff@garzik.org>2006-04-12 16:54:16 -0400
committerJeff Garzik <jeff@garzik.org>2006-04-12 16:54:16 -0400
commit875999c5539999f61a45620aae0c3e5fb1d2b035 (patch)
tree4535032a8a10f5782c0aef6a620b1a624ea9f863 /drivers/scsi
parent79072f38909e3d9883317238887460c39ddcc4cb (diff)
parent26ec634c31a11a003040e10b4d650495158632fd (diff)
Merge branch 'upstream'
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/3w-xxxx.c3
-rw-r--r--drivers/scsi/Makefile2
-rw-r--r--drivers/scsi/ahci.c57
-rw-r--r--drivers/scsi/aic7xxx/Kconfig.aic7xxx2
-rw-r--r--drivers/scsi/ata_piix.c7
-rw-r--r--drivers/scsi/hosts.c12
-rw-r--r--drivers/scsi/ibmmca.c2
-rw-r--r--drivers/scsi/ibmvscsi/rpa_vscsi.c10
-rw-r--r--drivers/scsi/lasi700.c2
-rw-r--r--drivers/scsi/libata-core.c917
-rw-r--r--drivers/scsi/libata-eh.c263
-rw-r--r--drivers/scsi/libata-scsi.c199
-rw-r--r--drivers/scsi/libata.h21
-rw-r--r--drivers/scsi/pcmcia/aha152x_stub.c112
-rw-r--r--drivers/scsi/pcmcia/fdomain_stub.c155
-rw-r--r--drivers/scsi/pcmcia/nsp_cs.c136
-rw-r--r--drivers/scsi/pcmcia/nsp_cs.h8
-rw-r--r--drivers/scsi/pcmcia/qlogic_stub.c127
-rw-r--r--drivers/scsi/pcmcia/sym53c500_cs.c124
-rw-r--r--drivers/scsi/pdc_adma.c7
-rw-r--r--drivers/scsi/sata_mv.c5
-rw-r--r--drivers/scsi/sata_nv.c5
-rw-r--r--drivers/scsi/sata_promise.c7
-rw-r--r--drivers/scsi/sata_qstor.c7
-rw-r--r--drivers/scsi/sata_sil.c9
-rw-r--r--drivers/scsi/sata_sil24.c250
-rw-r--r--drivers/scsi/sata_sis.c3
-rw-r--r--drivers/scsi/sata_svw.c5
-rw-r--r--drivers/scsi/sata_sx4.c9
-rw-r--r--drivers/scsi/sata_uli.c3
-rw-r--r--drivers/scsi/sata_via.c3
-rw-r--r--drivers/scsi/sata_vsc.c3
-rw-r--r--drivers/scsi/scsi_error.c4
-rw-r--r--drivers/scsi/zalon.c2
34 files changed, 1312 insertions, 1169 deletions
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 25f678d0780..e8e41e6eb42 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1508,10 +1508,12 @@ static void tw_transfer_internal(TW_Device_Extension *tw_dev, int request_id,
struct scsi_cmnd *cmd = tw_dev->srb[request_id];
void *buf;
unsigned int transfer_len;
+ unsigned long flags = 0;
if (cmd->use_sg) {
struct scatterlist *sg =
(struct scatterlist *)cmd->request_buffer;
+ local_irq_save(flags);
buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
transfer_len = min(sg->length, len);
} else {
@@ -1526,6 +1528,7 @@ static void tw_transfer_internal(TW_Device_Extension *tw_dev, int request_id,
sg = (struct scatterlist *)cmd->request_buffer;
kunmap_atomic(buf - sg->offset, KM_IRQ0);
+ local_irq_restore(flags);
}
}
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index e513c3158ad..503f189dab3 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -165,7 +165,7 @@ ncr53c8xx-flags-$(CONFIG_SCSI_ZALON) \
CFLAGS_ncr53c8xx.o := $(ncr53c8xx-flags-y) $(ncr53c8xx-flags-m)
zalon7xx-objs := zalon.o ncr53c8xx.o
NCR_Q720_mod-objs := NCR_Q720.o ncr53c8xx.o
-libata-objs := libata-core.o libata-scsi.o libata-bmdma.o
+libata-objs := libata-core.o libata-scsi.o libata-bmdma.o libata-eh.o
oktagon_esp_mod-objs := oktagon_esp.o oktagon_io.o
# Files generated that shall be removed upon make clean
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index ffba65656a8..1b8429cb3c9 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -48,7 +48,7 @@
#include <asm/io.h>
#define DRV_NAME "ahci"
-#define DRV_VERSION "1.2"
+#define DRV_VERSION "1.3"
enum {
@@ -207,7 +207,6 @@ static struct scsi_host_template ahci_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = AHCI_MAX_SG,
@@ -293,6 +292,10 @@ static const struct pci_device_id ahci_pci_tbl[] = {
board_ahci }, /* JMicron JMB360 */
{ 0x197b, 0x2363, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_ahci }, /* JMicron JMB363 */
+ { PCI_VENDOR_ID_ATI, 0x4380, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ board_ahci }, /* ATI SB600 non-raid */
+ { PCI_VENDOR_ID_ATI, 0x4381, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ board_ahci }, /* ATI SB600 raid */
{ } /* terminate list */
};
@@ -513,25 +516,7 @@ static void ahci_fill_cmd_slot(struct ahci_port_priv *pp, u32 opts)
pp->cmd_slot[0].tbl_addr_hi = cpu_to_le32((pp->cmd_tbl_dma >> 16) >> 16);
}
-static int ahci_poll_register(void __iomem *reg, u32 mask, u32 val,
- unsigned long interval_msec,
- unsigned long timeout_msec)
-{
- unsigned long timeout;
- u32 tmp;
-
- timeout = jiffies + (timeout_msec * HZ) / 1000;
- do {
- tmp = readl(reg);
- if ((tmp & mask) == val)
- return 0;
- msleep(interval_msec);
- } while (time_before(jiffies, timeout));
-
- return -1;
-}
-
-static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
+static int ahci_softreset(struct ata_port *ap, unsigned int *class)
{
struct ahci_host_priv *hpriv = ap->host_set->private_data;
struct ahci_port_priv *pp = ap->private_data;
@@ -540,11 +525,18 @@ static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
const u32 cmd_fis_len = 5; /* five dwords */
const char *reason = NULL;
struct ata_taskfile tf;
+ u32 tmp;
u8 *fis;
int rc;
DPRINTK("ENTER\n");
+ if (!sata_dev_present(ap)) {
+ DPRINTK("PHY reports no device\n");
+ *class = ATA_DEV_NONE;
+ return 0;
+ }
+
/* prepare for SRST (AHCI-1.1 10.4.1) */
rc = ahci_stop_engine(ap);
if (rc) {
@@ -555,8 +547,6 @@ static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
/* check BUSY/DRQ, perform Command List Override if necessary */
ahci_tf_read(ap, &tf);
if (tf.command & (ATA_BUSY | ATA_DRQ)) {
- u32 tmp;
-
if (!(hpriv->cap & HOST_CAP_CLO)) {
rc = -EIO;
reason = "port busy but no CLO";
@@ -566,10 +556,10 @@ static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
tmp = readl(port_mmio + PORT_CMD);
tmp |= PORT_CMD_CLO;
writel(tmp, port_mmio + PORT_CMD);
- readl(port_mmio + PORT_CMD); /* flush */
- if (ahci_poll_register(port_mmio + PORT_CMD, PORT_CMD_CLO, 0x0,
- 1, 500)) {
+ tmp = ata_wait_register(port_mmio + PORT_CMD,
+ PORT_CMD_CLO, PORT_CMD_CLO, 1, 500);
+ if (tmp & PORT_CMD_CLO) {
rc = -EIO;
reason = "CLO failed";
goto fail_restart;
@@ -590,9 +580,9 @@ static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
fis[1] &= ~(1 << 7); /* turn off Command FIS bit */
writel(1, port_mmio + PORT_CMD_ISSUE);
- readl(port_mmio + PORT_CMD_ISSUE); /* flush */
- if (ahci_poll_register(port_mmio + PORT_CMD_ISSUE, 0x1, 0x0, 1, 500)) {
+ tmp = ata_wait_register(port_mmio + PORT_CMD_ISSUE, 0x1, 0x1, 1, 500);
+ if (tmp & 0x1) {
rc = -EIO;
reason = "1st FIS failed";
goto fail;
@@ -637,22 +627,19 @@ static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
fail_restart:
ahci_start_engine(ap);
fail:
- if (verbose)
- printk(KERN_ERR "ata%u: softreset failed (%s)\n",
- ap->id, reason);
- else
- DPRINTK("EXIT, rc=%d reason=\"%s\"\n", rc, reason);
+ printk(KERN_ERR "ata%u: softreset failed (%s)\n",
+ ap->id, reason);
return rc;
}
-static int ahci_hardreset(struct ata_port *ap, int verbose, unsigned int *class)
+static int ahci_hardreset(struct ata_port *ap, unsigned int *class)
{
int rc;
DPRINTK("ENTER\n");
ahci_stop_engine(ap);
- rc = sata_std_hardreset(ap, verbose, class);
+ rc = sata_std_hardreset(ap, class);
ahci_start_engine(ap);
if (rc == 0)
diff --git a/drivers/scsi/aic7xxx/Kconfig.aic7xxx b/drivers/scsi/aic7xxx/Kconfig.aic7xxx
index 6c2c395554f..5517da5855f 100644
--- a/drivers/scsi/aic7xxx/Kconfig.aic7xxx
+++ b/drivers/scsi/aic7xxx/Kconfig.aic7xxx
@@ -86,7 +86,7 @@ config AIC7XXX_DEBUG_MASK
default "0"
help
Bit mask of debug options that is only valid if the
- CONFIG_AIC7XXX_DEBUG_ENBLE option is enabled. The bits in this mask
+ CONFIG_AIC7XXX_DEBUG_ENABLE option is enabled. The bits in this mask
are defined in the drivers/scsi/aic7xxx/aic7xxx.h - search for the
variable ahc_debug in that file to find them.
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 2d5be84d8bd..62dabf74188 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -93,7 +93,7 @@
#include <linux/libata.h>
#define DRV_NAME "ata_piix"
-#define DRV_VERSION "1.05"
+#define DRV_VERSION "1.10"
enum {
PIIX_IOCFG = 0x54, /* IDE I/O configuration register */
@@ -209,7 +209,6 @@ static struct scsi_host_template piix_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
@@ -301,7 +300,7 @@ static struct piix_map_db ich6_map_db = {
.mask = 0x3,
.map = {
/* PM PS SM SS MAP */
- { P0, P1, P2, P3 }, /* 00b */
+ { P0, P2, P1, P3 }, /* 00b */
{ IDE, IDE, P1, P3 }, /* 01b */
{ P0, P2, IDE, IDE }, /* 10b */
{ RV, RV, RV, RV },
@@ -312,7 +311,7 @@ static struct piix_map_db ich6m_map_db = {
.mask = 0x3,
.map = {
/* PM PS SM SS MAP */
- { P0, P1, P2, P3 }, /* 00b */
+ { P0, P2, RV, RV }, /* 00b */
{ RV, RV, RV, RV },
{ P0, P2, IDE, IDE }, /* 10b */
{ RV, RV, RV, RV },
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index ef57f253031..dfcb96f3e60 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -294,18 +294,6 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
if (sht->unchecked_isa_dma && privsize)
gfp_mask |= __GFP_DMA;
- /* Check to see if this host has any error handling facilities */
- if (!sht->eh_strategy_handler && !sht->eh_abort_handler &&
- !sht->eh_device_reset_handler && !sht->eh_bus_reset_handler &&
- !sht->eh_host_reset_handler) {
- printk(KERN_ERR "ERROR: SCSI host `%s' has no error handling\n"
- "ERROR: This is not a safe way to run your "
- "SCSI host\n"
- "ERROR: The error handling must be added to "
- "this driver\n", sht->proc_name);
- dump_stack();
- }
-
shost = kzalloc(sizeof(struct Scsi_Host) + privsize, gfp_mask);
if (!shost)
return NULL;
diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c
index 3a8462e8d06..24eb59e143a 100644
--- a/drivers/scsi/ibmmca.c
+++ b/drivers/scsi/ibmmca.c
@@ -2488,7 +2488,7 @@ static int option_setup(char *str)
}
ints[0] = i - 1;
internal_ibmmca_scsi_setup(cur, ints);
- return 0;
+ return 1;
}
__setup("ibmmcascsi=", option_setup);
diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c
index f47dd87c05e..892e8ed6309 100644
--- a/drivers/scsi/ibmvscsi/rpa_vscsi.c
+++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c
@@ -80,7 +80,7 @@ void ibmvscsi_release_crq_queue(struct crq_queue *queue,
tasklet_kill(&hostdata->srp_task);
do {
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
- } while ((rc == H_Busy) || (H_isLongBusy(rc)));
+ } while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
dma_unmap_single(hostdata->dev,
queue->msg_token,
queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
@@ -230,7 +230,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
rc = plpar_hcall_norets(H_REG_CRQ,
vdev->unit_address,
queue->msg_token, PAGE_SIZE);
- if (rc == H_Resource)
+ if (rc == H_RESOURCE)
/* maybe kexecing and resource is busy. try a reset */
rc = ibmvscsi_reset_crq_queue(queue,
hostdata);
@@ -269,7 +269,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
req_irq_failed:
do {
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
- } while ((rc == H_Busy) || (H_isLongBusy(rc)));
+ } while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
reg_crq_failed:
dma_unmap_single(hostdata->dev,
queue->msg_token,
@@ -295,7 +295,7 @@ int ibmvscsi_reenable_crq_queue(struct crq_queue *queue,
/* Re-enable the CRQ */
do {
rc = plpar_hcall_norets(H_ENABLE_CRQ, vdev->unit_address);
- } while ((rc == H_InProgress) || (rc == H_Busy) || (H_isLongBusy(rc)));
+ } while ((rc == H_IN_PROGRESS) || (rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
if (rc)
printk(KERN_ERR "ibmvscsi: Error %d enabling adapter\n", rc);
@@ -317,7 +317,7 @@ int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
/* Close the CRQ */
do {
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
- } while ((rc == H_Busy) || (H_isLongBusy(rc)));
+ } while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
/* Clean out the queue */
memset(queue->msgs, 0x00, PAGE_SIZE);
diff --git a/drivers/scsi/lasi700.c b/drivers/scsi/lasi700.c
index 459a4daebec..eb7bd310cc8 100644
--- a/drivers/scsi/lasi700.c
+++ b/drivers/scsi/lasi700.c
@@ -112,7 +112,7 @@ lasi700_probe(struct parisc_device *dev)
hostdata->dev = &dev->dev;
dma_set_mask(&dev->dev, DMA_32BIT_MASK);
- hostdata->base = ioremap(base, 0x100);
+ hostdata->base = ioremap_nocache(base, 0x100);
hostdata->differential = 0;
if (dev->id.sversion == LASI_700_SVERSION) {
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 21b0ed583b8..509178c3700 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -65,7 +65,6 @@ static unsigned int ata_dev_init_params(struct ata_port *ap,
struct ata_device *dev,
u16 heads,
u16 sectors);
-static void ata_set_mode(struct ata_port *ap);
static unsigned int ata_dev_set_xfermode(struct ata_port *ap,
struct ata_device *dev);
static void ata_dev_xfermask(struct ata_port *ap, struct ata_device *dev);
@@ -77,6 +76,10 @@ int atapi_enabled = 1;
module_param(atapi_enabled, int, 0444);
MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)");
+int atapi_dmadir = 0;
+module_param(atapi_dmadir, int, 0444);
+MODULE_PARM_DESC(atapi_dmadir, "Enable ATAPI DMADIR bridge support (0=off, 1=on)");
+
int libata_fua = 0;
module_param_named(fua, libata_fua, int, 0444);
MODULE_PARM_DESC(fua, "FUA support (0=off, 1=on)");
@@ -278,7 +281,7 @@ static void ata_unpack_xfermask(unsigned int xfer_mask,
}
static const struct ata_xfer_ent {
- unsigned int shift, bits;
+ int shift, bits;
u8 base;
} ata_xfer_tbl[] = {
{ ATA_SHIFT_PIO, ATA_BITS_PIO, XFER_PIO_0 },
@@ -397,9 +400,21 @@ static const char *ata_mode_string(unsigned int xfer_mask)
return "<n/a>";
}
-static void ata_dev_disable(struct ata_port *ap, struct ata_device *dev)
+static const char *sata_spd_string(unsigned int spd)
{
- if (ata_dev_present(dev)) {
+ static const char * const spd_str[] = {
+ "1.5 Gbps",
+ "3.0 Gbps",
+ };
+
+ if (spd == 0 || (spd - 1) >= ARRAY_SIZE(spd_str))
+ return "<unknown>";
+ return spd_str[spd - 1];
+}
+
+void ata_dev_disable(struct ata_port *ap, struct ata_device *dev)
+{
+ if (ata_dev_enabled(dev)) {
printk(KERN_WARNING "ata%u: dev %u disabled\n",
ap->id, dev->devno);
dev->class++;
@@ -949,6 +964,7 @@ void ata_qc_complete_internal(struct ata_queued_cmd *qc)
* @ap: Port to which the command is sent
* @dev: Device to which the command is sent
* @tf: Taskfile registers for the command and the result
+ * @cdb: CDB for packet command
* @dma_dir: Data tranfer direction of the command
* @buf: Data buffer of the command
* @buflen: Length of data buffer
@@ -963,10 +979,9 @@ void ata_qc_complete_internal(struct ata_queued_cmd *qc)
* None. Should be called with kernel context, might sleep.
*/
-static unsigned
-ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
- struct ata_taskfile *tf,
- int dma_dir, void *buf, unsigned int buflen)
+unsigned ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
+ struct ata_taskfile *tf, const u8 *cdb,
+ int dma_dir, void *buf, unsigned int buflen)
{
u8 command = tf->command;
struct ata_queued_cmd *qc;
@@ -980,6 +995,8 @@ ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
BUG_ON(qc == NULL);
qc->tf = *tf;
+ if (cdb)
+ memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);
qc->dma_dir = dma_dir;
if (dma_dir != DMA_NONE) {
ata_sg_init_one(qc, buf, buflen);
@@ -989,9 +1006,7 @@ ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
qc->private_data = &wait;
qc->complete_fn = ata_qc_complete_internal;
- qc->err_mask = ata_qc_issue(qc);
- if (qc->err_mask)
- ata_qc_complete(qc);
+ ata_qc_issue(qc);
spin_unlock_irqrestore(&ap->host_set->lock, flags);
@@ -1032,7 +1047,7 @@ ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
*
* Kill the following code as soon as those drivers are fixed.
*/
- if (ap->flags & ATA_FLAG_PORT_DISABLED) {
+ if (ap->flags & ATA_FLAG_DISABLED) {
err_mask |= AC_ERR_SYSTEM;
ata_port_probe(ap);
}
@@ -1131,7 +1146,7 @@ static int ata_dev_read_id(struct ata_port *ap, struct ata_device *dev,
tf.protocol = ATA_PROT_PIO;
- err_mask = ata_exec_internal(ap, dev, &tf, DMA_FROM_DEVICE,
+ err_mask = ata_exec_internal(ap, dev, &tf, NULL, DMA_FROM_DEVICE,
id, sizeof(id[0]) * ATA_ID_WORDS);
if (err_mask) {
rc = -EIO;
@@ -1212,7 +1227,7 @@ static int ata_dev_configure(struct ata_port *ap, struct ata_device *dev,
unsigned int xfer_mask;
int i, rc;
- if (!ata_dev_present(dev)) {
+ if (!ata_dev_enabled(dev)) {
DPRINTK("ENTER/EXIT (host %u, dev %u) -- nodev\n",
ap->id, dev->devno);
return 0;
@@ -1228,7 +1243,7 @@ static int ata_dev_configure(struct ata_port *ap, struct ata_device *dev,
id[84], id[85], id[86], id[87], id[88]);
/* initialize to-be-configured parameters */
- dev->flags = 0;
+ dev->flags &= ~ATA_DFLAG_CFG_MASK;
dev->max_sectors = 0;
dev->cdb_len = 0;
dev->n_sectors = 0;
@@ -1351,16 +1366,24 @@ err_out_nosup:
* PCI/etc. bus probe sem.
*
* RETURNS:
- * Zero on success, non-zero on error.
+ * Zero on success, negative errno otherwise.
*/
static int ata_bus_probe(struct ata_port *ap)
{
unsigned int classes[ATA_MAX_DEVICES];
- unsigned int i, rc, found = 0;
+ int tries[ATA_MAX_DEVICES];
+ int i, rc, down_xfermask;
+ struct ata_device *dev;
ata_port_probe(ap);
+ for (i = 0; i < ATA_MAX_DEVICES; i++)
+ tries[i] = ATA_PROBE_MAX_TRIES;
+
+ retry:
+ down_xfermask = 0;
+
/* reset and determine device classes */
for (i = 0; i < ATA_MAX_DEVICES; i++)
classes[i] = ATA_DEV_UNKNOWN;
@@ -1374,7 +1397,7 @@ static int ata_bus_probe(struct ata_port *ap)
} else {
ap->ops->phy_reset(ap);
- if (!(ap->flags & ATA_FLAG_PORT_DISABLED))
+ if (!(ap->flags & ATA_FLAG_DISABLED))
for (i = 0; i < ATA_MAX_DEVICES; i++)
classes[i] = ap->device[i].class;
@@ -1387,43 +1410,76 @@ static int ata_bus_probe(struct ata_port *ap)
/* read IDENTIFY page and configure devices */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
- struct ata_device *dev = &ap->device[i];
+ dev = &ap->device[i];
- dev->class = classes[i];
+ if (tries[i])
+ dev->class = classes[i];
- if (!ata_dev_present(dev))
+ if (!ata_dev_enabled(dev))
continue;
- WARN_ON(dev->id != NULL);
- if (ata_dev_read_id(ap, dev, &dev->class, 1, &dev->id)) {
- dev->class = ATA_DEV_NONE;
- continue;
- }
+ kfree(dev->id);
+ dev->id = NULL;
+ rc = ata_dev_read_id(ap, dev, &dev->class, 1, &dev->id);
+ if (rc)
+ goto fail;
- if (ata_dev_configure(ap, dev, 1)) {
- ata_dev_disable(ap, dev);
- continue;
- }
+ rc = ata_dev_configure(ap, dev, 1);
+ if (rc)
+ goto fail;
+ }
- found = 1;
+ /* configure transfer mode */
+ if (ap->ops->set_mode) {
+ /* FIXME: make ->set_mode handle no device case and
+ * return error code and failing device on failure as
+ * ata_set_mode() does.
+ */
+ for (i = 0; i < ATA_MAX_DEVICES; i++)
+ if (ata_dev_enabled(&ap->device[i])) {
+ ap->ops->set_mode(ap);
+ break;
+ }
+ rc = 0;
+ } else
+ rc = ata_set_mode(ap, &dev);
+
+ if (rc) {
+ down_xfermask = 1;
+ goto fail;
}
- if (!found)
- goto err_out_disable;
+ for (i = 0; i < ATA_MAX_DEVICES; i++)
+ if (ata_dev_enabled(&ap->device[i]))
+ return 0;
- if (ap->ops->set_mode)
- ap->ops->set_mode(ap);
- else
- ata_set_mode(ap);
+ /* no device present, disable port */
+ ata_port_disable(ap);
+ ap->ops->port_disable(ap);
+ return -ENODEV;
- if (ap->flags & ATA_FLAG_PORT_DISABLED)
- goto err_out_disable;
+ fail:
+ switch (rc) {
+ case -EINVAL:
+ case -ENODEV:
+ tries[dev->devno] = 0;
+ break;
+ case -EIO:
+ ata_down_sata_spd_limit(ap);
+ /* fall through */
+ default:
+ tries[dev->devno]--;
+ if (down_xfermask &&
+ ata_down_xfermask_limit(ap, dev, tries[dev->devno] == 1))
+ tries[dev->devno] = 0;
+ }
- return 0;
+ if (!tries[dev->devno]) {
+ ata_down_xfermask_limit(ap, dev, 1);
+ ata_dev_disable(ap, dev);
+ }
-err_out_disable:
- ap->ops->port_disable(ap);
- return -1;
+ goto retry;
}
/**
@@ -1439,7 +1495,7 @@ err_out_disable:
void ata_port_probe(struct ata_port *ap)
{
- ap->flags &= ~ATA_FLAG_PORT_DISABLED;
+ ap->flags &= ~ATA_FLAG_DISABLED;
}
/**
@@ -1453,27 +1509,23 @@ void ata_port_probe(struct ata_port *ap)
*/
static void sata_print_link_status(struct ata_port *ap)
{
- u32 sstatus, tmp;
- const char *speed;
+ u32 sstatus, scontrol, tmp;
if (!ap->ops->scr_read)
return;
sstatus = scr_read(ap, SCR_STATUS);
+ scontrol = scr_read(ap, SCR_CONTROL);
if (sata_dev_present(ap)) {
tmp = (sstatus >> 4) & 0xf;
- if (tmp & (1 << 0))
- speed = "1.5";
- else if (tmp & (1 << 1))
- speed = "3.0";
- else
- speed = "<unknown>";
- printk(KERN_INFO "ata%u: SATA link up %s Gbps (SStatus %X)\n",
- ap->id, speed, sstatus);
+ printk(KERN_INFO
+ "ata%u: SATA link up %s (SStatus %X SControl %X)\n",
+ ap->id, sata_spd_string(tmp), sstatus, scontrol);
} else {
- printk(KERN_INFO "ata%u: SATA link down (SStatus %X)\n",
- ap->id, sstatus);
+ printk(KERN_INFO
+ "ata%u: SATA link down (SStatus %X SControl %X)\n",
+ ap->id, sstatus, scontrol);
}
}
@@ -1520,7 +1572,7 @@ void __sata_phy_reset(struct ata_port *ap)
else
ata_port_disable(ap);
- if (ap->flags & ATA_FLAG_PORT_DISABLED)
+ if (ap->flags & ATA_FLAG_DISABLED)
return;
if (ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT)) {
@@ -1545,7 +1597,7 @@ void __sata_phy_reset(struct ata_port *ap)
void sata_phy_reset(struct ata_port *ap)
{
__sata_phy_reset(ap);
- if (ap->flags & ATA_FLAG_PORT_DISABLED)
+ if (ap->flags & ATA_FLAG_DISABLED)
return;
ata_bus_reset(ap);
}
@@ -1562,7 +1614,7 @@ void sata_phy_reset(struct ata_port *ap)
struct ata_device *ata_dev_pair(struct ata_port *ap, struct ata_device *adev)
{
struct ata_device *pair = &ap->device[1 - adev->devno];
- if (!ata_dev_present(pair))
+ if (!ata_dev_enabled(pair))
return NULL;
return pair;
}
@@ -1584,7 +1636,121 @@ void ata_port_disable(struct ata_port *ap)
{
ap->device[0].class = ATA_DEV_NONE;
ap->device[1].class = ATA_DEV_NONE;
- ap->flags |= ATA_FLAG_PORT_DISABLED;
+ ap->flags |= ATA_FLAG_DISABLED;
+}
+
+/**
+ * ata_down_sata_spd_limit - adjust SATA spd limit downward
+ * @ap: Port to adjust SATA spd limit for
+ *
+ * Adjust SATA spd limit of @ap downward. Note that this
+ * function only adjusts the limit. The change must be applied
+ * using ata_set_sata_spd().
+ *
+ * LOCKING:
+ * Inherited from caller.
+ *
+ * RETURNS:
+ * 0 on success, negative errno on failure
+ */
+int ata_down_sata_spd_limit(struct ata_port *ap)
+{
+ u32 spd, mask;
+ int highbit;
+
+ if (ap->cbl != ATA_CBL_SATA || !ap->ops->scr_read)
+ return -EOPNOTSUPP;
+
+ mask = ap->sata_spd_limit;
+ if (mask <= 1)
+ return -EINVAL;
+ highbit = fls(mask) - 1;
+ mask &= ~(1 << highbit);
+
+ spd = (scr_read(ap, SCR_STATUS) >> 4) & 0xf;
+ if (spd <= 1)
+ return -EINVAL;
+ spd--;
+ mask &= (1 << spd) - 1;
+ if (!mask)
+ return -EINVAL;
+
+ ap->sata_spd_limit = mask;
+
+ printk(KERN_WARNING "ata%u: limiting SATA link speed to %s\n",
+ ap->id, sata_spd_string(fls(mask)));
+
+ return 0;
+}
+
+static int __ata_set_sata_spd_needed(struct ata_port *ap, u32 *scontrol)
+{
+ u32 spd, limit;
+
+ if (ap->sata_spd_limit == UINT_MAX)
+ limit = 0;
+ else
+ limit = fls(ap->sata_spd_limit);
+
+ spd = (*scontrol >> 4) & 0xf;
+ *scontrol = (*scontrol & ~0xf0) | ((limit & 0xf) << 4);
+
+ return spd != limit;
+}
+
+/**
+ * ata_set_sata_spd_needed - is SATA spd configuration needed
+ * @ap: Port in question
+ *
+ * Test whether the spd limit in SControl matches
+ * @ap->sata_spd_limit. This function is used to determine
+ * whether hardreset is necessary to apply SATA spd
+ * configuration.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ *
+ * RETURNS:
+ * 1 if SATA spd configuration is needed, 0 otherwise.
+ */
+int ata_set_sata_spd_needed(struct ata_port *ap)
+{
+ u32 scontrol;
+
+ if (ap->cbl != ATA_CBL_SATA || !ap->ops->scr_read)
+ return 0;
+
+ scontrol = scr_read(ap, SCR_CONTROL);
+
+ return __ata_set_sata_spd_needed(ap, &scontrol);
+}
+
+/**
+ * ata_set_sata_spd - set SATA spd according to spd limit
+ * @ap: Port to set SATA spd for
+ *
+ * Set SATA spd of @ap according to sata_spd_limit.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ *
+ * RETURNS:
+ * 0 if spd doesn't need to be changed, 1 if spd has been
+ * changed. -EOPNOTSUPP if SCR registers are inaccessible.
+ */
+int ata_set_sata_spd(struct ata_port *ap)
+{
+ u32 scontrol;
+
+ if (ap->cbl != ATA_CBL_SATA || !ap->ops->scr_read)
+ return -EOPNOTSUPP;
+
+ scontrol = scr_read(ap, SCR_CONTROL);
+ if (!__ata_set_sata_spd_needed(ap, &scontrol))
+ return 0;
+
+ scr_write(ap, SCR_CONTROL, scontrol);
+ return 1;
}
/*
@@ -1735,11 +1901,62 @@ int ata_timing_compute(struct ata_device *adev, unsigned short speed,
return 0;
}
+/**
+ * ata_down_xfermask_limit - adjust dev xfer masks downward
+ * @ap: Port associated with device @dev
+ * @dev: Device to adjust xfer masks
+ * @force_pio0: Force PIO0
+ *
+ * Adjust xfer masks of @dev downward. Note that this function
+ * does not apply the change. Invoking ata_set_mode() afterwards
+ * will apply the limit.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ *
+ * RETURNS:
+ * 0 on success, negative errno on failure
+ */
+int ata_down_xfermask_limit(struct ata_port *ap, struct ata_device *dev,
+ int force_pio0)
+{
+ unsigned long xfer_mask;
+ int highbit;
+
+ xfer_mask = ata_pack_xfermask(dev->pio_mask, dev->mwdma_mask,
+ dev->udma_mask);
+
+ if (!xfer_mask)
+ goto fail;
+ /* don't gear down to MWDMA from UDMA, go directly to PIO */
+ if (xfer_mask & ATA_MASK_UDMA)
+ xfer_mask &= ~ATA_MASK_MWDMA;
+
+ highbit = fls(xfer_mask) - 1;
+ xfer_mask &= ~(1 << highbit);
+ if (force_pio0)
+ xfer_mask &= 1 << ATA_SHIFT_PIO;
+ if (!xfer_mask)
+ goto fail;
+
+ ata_unpack_xfermask(xfer_mask, &dev->pio_mask, &dev->mwdma_mask,
+ &dev->udma_mask);
+
+ printk(KERN_WARNING "ata%u: dev %u limiting speed to %s\n",
+ ap->id, dev->devno, ata_mode_string(xfer_mask));
+
+ return 0;
+
+ fail:
+ return -EINVAL;
+}
+
static int ata_dev_set_mode(struct ata_port *ap, struct ata_device *dev)
{
unsigned int err_mask;
int rc;
+ dev->flags &= ~ATA_DFLAG_PIO;
if (dev->xfer_shift == ATA_SHIFT_PIO)
dev->flags |= ATA_DFLAG_PIO;
@@ -1752,12 +1969,8 @@ static int ata_dev_set_mode(struct ata_port *ap, struct ata_device *dev)
}
rc = ata_dev_revalidate(ap, dev, 0);
- if (rc) {
- printk(KERN_ERR
- "ata%u: failed to revalidate after set xfermode\n",
- ap->id);
+ if (rc)
return rc;
- }
DPRINTK("xfer_shift=%u, xfer_mode=0x%x\n",
dev->xfer_shift, (int)dev->xfer_mode);
@@ -1768,118 +1981,107 @@ static int ata_dev_set_mode(struct ata_port *ap, struct ata_device *dev)
return 0;
}
-static int ata_host_set_pio(struct ata_port *ap)
-{
- int i;
-
- for (i = 0; i < ATA_MAX_DEVICES; i++) {
- struct ata_device *dev = &ap->device[i];
-
- if (!ata_dev_present(dev))
- continue;
-
- if (!dev->pio_mode) {
- printk(KERN_WARNING "ata%u: no PIO support for device %d.\n", ap->id, i);
- return -1;
- }
-
- dev->xfer_mode = dev->pio_mode;
- dev->xfer_shift = ATA_SHIFT_PIO;
- if (ap->ops->set_piomode)
- ap->ops->set_piomode(ap, dev);
- }
-
- return 0;
-}
-
-static void ata_host_set_dma(struct ata_port *ap)
-{
- int i;
-
- for (i = 0; i < ATA_MAX_DEVICES; i++) {
- struct ata_device *dev = &ap->device[i];
-
- if (!ata_dev_present(dev) || !dev->dma_mode)
- continue;
-
- dev->xfer_mode = dev->dma_mode;
- dev->xfer_shift = ata_xfer_mode2shift(dev->dma_mode);
- if (ap->ops->set_dmamode)
- ap->ops->set_dmamode(ap, dev);
- }
-}
-
/**
* ata_set_mode - Program timings and issue SET FEATURES - XFER
* @ap: port on which timings will be programmed
+ * @r_failed_dev: out paramter for failed device
*
- * Set ATA device disk transfer mode (PIO3, UDMA6, etc.).
+ * Set ATA device disk transfer mode (PIO3, UDMA6, etc.). If
+ * ata_set_mode() fails, pointer to the failing device is
+ * returned in @r_failed_dev.
*
* LOCKING:
* PCI/etc. bus probe sem.
+ *
+ * RETURNS:
+ * 0 on success, negative errno otherwise
*/
-static void ata_set_mode(struct ata_port *ap)
+int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
{
- int i, rc, used_dma = 0;
+ struct ata_device *dev;
+ int i, rc = 0, used_dma = 0, found = 0;
/* step 1: calculate xfer_mask */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
- struct ata_device *dev = &ap->device[i];
unsigned int pio_mask, dma_mask;
- if (!ata_dev_present(dev))
+ dev = &ap->device[i];
+
+ if (!ata_dev_enabled(dev))
continue;
ata_dev_xfermask(ap, dev);
- /* TODO: let LLDD filter dev->*_mask here */
-
pio_mask = ata_pack_xfermask(dev->pio_mask, 0, 0);
dma_mask = ata_pack_xfermask(0, dev->mwdma_mask, dev->udma_mask);
dev->pio_mode = ata_xfer_mask2mode(pio_mask);
dev->dma_mode = ata_xfer_mask2mode(dma_mask);
+ found = 1;
if (dev->dma_mode)
used_dma = 1;
}
+ if (!found)
+ goto out;
/* step 2: always set host PIO timings */
- rc = ata_host_set_pio(ap);
- if (rc)
- goto err_out;
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ dev = &ap->device[i];
+ if (!ata_dev_enabled(dev))
+ continue;
+
+ if (!dev->pio_mode) {
+ printk(KERN_WARNING "ata%u: dev %u no PIO support\n",
+ ap->id, dev->devno);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ dev->xfer_mode = dev->pio_mode;
+ dev->xfer_shift = ATA_SHIFT_PIO;
+ if (ap->ops->set_piomode)
+ ap->ops->set_piomode(ap, dev);
+ }
/* step 3: set host DMA timings */
- ata_host_set_dma(ap);
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ dev = &ap->device[i];
+
+ if (!ata_dev_enabled(dev) || !dev->dma_mode)
+ continue;
+
+ dev->xfer_mode = dev->dma_mode;
+ dev->xfer_shift = ata_xfer_mode2shift(dev->dma_mode);
+ if (ap->ops->set_dmamode)
+ ap->ops->set_dmamode(ap, dev);
+ }
/* step 4: update devices' xfer mode */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
- struct ata_device *dev = &ap->device[i];
+ dev = &ap->device[i];
- if (!ata_dev_present(dev))
+ if (!ata_dev_enabled(dev))
continue;
- if (ata_dev_set_mode(ap, dev))
- goto err_out;
+ rc = ata_dev_set_mode(ap, dev);
+ if (rc)
+ goto out;
}
- /*
- * Record simplex status. If we selected DMA then the other
- * host channels are not permitted to do so.
+ /* Record simplex status. If we selected DMA then the other
+ * host channels are not permitted to do so.
*/
-
if (used_dma && (ap->host_set->flags & ATA_HOST_SIMPLEX))
ap->host_set->simplex_claimed = 1;
- /*
- * Chip specific finalisation
- */
+ /* step5: chip specific finalisation */
if (ap->ops->post_set_mode)
ap->ops->post_set_mode(ap);
- return;
-
-err_out:
- ata_port_disable(ap);
+ out:
+ if (rc)
+ *r_failed_dev = dev;
+ return rc;
}
/**
@@ -2032,8 +2234,10 @@ static unsigned int ata_bus_softreset(struct ata_port *ap,
* the bus shows 0xFF because the odd clown forgets the D7
* pulldown resistor.
*/
- if (ata_check_status(ap) == 0xFF)
+ if (ata_check_status(ap) == 0xFF) {
+ printk(KERN_ERR "ata%u: SRST failed (status 0xFF)\n", ap->id);
return AC_ERR_OTHER;
+ }
ata_bus_post_reset(ap, devmask);
@@ -2057,7 +2261,7 @@ static unsigned int ata_bus_softreset(struct ata_port *ap,
* Obtains host_set lock.
*
* SIDE EFFECTS:
- * Sets ATA_FLAG_PORT_DISABLED if bus reset fails.
+ * Sets ATA_FLAG_DISABLED if bus reset fails.
*/
void ata_bus_reset(struct ata_port *ap)
@@ -2134,9 +2338,11 @@ err_out:
static int sata_phy_resume(struct ata_port *ap)
{
unsigned long timeout = jiffies + (HZ * 5);
- u32 sstatus;
+ u32 scontrol, sstatus;
- scr_write_flush(ap, SCR_CONTROL, 0x300);
+ scontrol = scr_read(ap, SCR_CONTROL);
+ scontrol = (scontrol & 0x0f0) | 0x300;
+ scr_write_flush(ap, SCR_CONTROL, scontrol);
/* Wait for phy to become ready, if necessary. */
do {
@@ -2165,7 +2371,18 @@ static int sata_phy_resume(struct ata_port *ap)
void ata_std_probeinit(struct ata_port *ap)
{
if ((ap->flags & ATA_FLAG_SATA) && ap->ops->scr_read) {
+ u32 spd;
+
+ /* set cable type and resume link */
+ ap->cbl = ATA_CBL_SATA;
sata_phy_resume(ap);
+
+ /* init sata_spd_limit to the current value */
+ spd = (scr_read(ap, SCR_CONTROL) & 0xf0) >> 4;
+ if (spd)
+ ap->sata_spd_limit &= (1 << spd) - 1;
+
+ /* wait for device */
if (sata_dev_present(ap))
ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT);
}
@@ -2174,7 +2391,6 @@ void ata_std_probeinit(struct ata_port *ap)
/**
* ata_std_softreset - reset host port via ATA SRST
* @ap: port to reset
- * @verbose: fail verbosely
* @classes: resulting classes of attached devices
*
* Reset host port using ATA SRST. This function is to be used
@@ -2186,7 +2402,7 @@ void ata_std_probeinit(struct ata_port *ap)
* RETURNS:
* 0 on success, -errno otherwise.
*/
-int ata_std_softreset(struct ata_port *ap, int verbose, unsigned int *classes)
+int ata_std_softreset(struct ata_port *ap, unsigned int *classes)
{
unsigned int slave_possible = ap->flags & ATA_FLAG_SLAVE_POSS;
unsigned int devmask = 0, err_mask;
@@ -2212,12 +2428,8 @@ int ata_std_softreset(struct ata_port *ap, int verbose, unsigned int *classes)
DPRINTK("about to softreset, devmask=%x\n", devmask);
err_mask = ata_bus_softreset(ap, devmask);
if (err_mask) {
- if (verbose)
- printk(KERN_ERR "ata%u: SRST failed (err_mask=0x%x)\n",
- ap->id, err_mask);
- else
- DPRINTK("EXIT, softreset failed (err_mask=0x%x)\n",
- err_mask);
+ printk(KERN_ERR "ata%u: SRST failed (err_mask=0x%x)\n",
+ ap->id, err_mask);
return -EIO;
}
@@ -2234,7 +2446,6 @@ int ata_std_softreset(struct ata_port *ap, int verbose, unsigned int *classes)
/**
* sata_std_hardreset - reset host port via SATA phy reset
* @ap: port to reset
- * @verbose: fail verbosely
* @class: resulting class of attached device
*
* SATA phy-reset host port using DET bits of SControl register.
@@ -2247,20 +2458,36 @@ int ata_std_softreset(struct ata_port *ap, int verbose, unsigned int *classes)
* RETURNS:
* 0 on success, -errno otherwise.
*/
-int sata_std_hardreset(struct ata_port *ap, int verbose, unsigned int *class)
+int sata_std_hardreset(struct ata_port *ap, unsigned int *class)
{
+ u32 scontrol;
+
DPRINTK("ENTER\n");
- /* Issue phy wake/reset */
- scr_write_flush(ap, SCR_CONTROL, 0x301);
+ if (ata_set_sata_spd_needed(ap)) {
+ /* SATA spec says nothing about how to reconfigure
+ * spd. To be on the safe side, turn off phy during
+ * reconfiguration. This works for at least ICH7 AHCI
+ * and Sil3124.
+ */
+ scontrol = scr_read(ap, SCR_CONTROL);
+ scontrol = (scontrol & 0x0f0) | 0x302;
+ scr_write_flush(ap, SCR_CONTROL, scontrol);
- /*
- * Couldn't find anything in SATA I/II specs, but AHCI-1.1
+ ata_set_sata_spd(ap);
+ }
+
+ /* issue phy wake/reset */
+ scontrol = scr_read(ap, SCR_CONTROL);
+ scontrol = (scontrol & 0x0f0) | 0x301;
+ scr_write_flush(ap, SCR_CONTROL, scontrol);
+
+ /* Couldn't find anything in SATA I/II specs, but AHCI-1.1
* 10.4.2 says at least 1 ms.
*/
msleep(1);
- /* Bring phy back */
+ /* bring phy back */
sata_phy_resume(ap);
/* TODO: phy layer with polling, timeouts, etc. */
@@ -2271,11 +2498,8 @@ int sata_std_hardreset(struct ata_port *ap, int verbose, unsigned int *class)
}
if (ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT)) {
- if (verbose)
- printk(KERN_ERR "ata%u: COMRESET failed "
- "(device not ready)\n", ap->id);
- else
- DPRINTK("EXIT, device not ready\n");
+ printk(KERN_ERR
+ "ata%u: COMRESET failed (device not ready)\n", ap->id);
return -EIO;
}
@@ -2306,10 +2530,6 @@ void ata_std_postreset(struct ata_port *ap, unsigned int *classes)
{
DPRINTK("ENTER\n");
- /* set cable type if it isn't already set */
- if (ap->cbl == ATA_CBL_NONE && ap->flags & ATA_FLAG_SATA)
- ap->cbl = ATA_CBL_SATA;
-
/* print link status */
if (ap->cbl == ATA_CBL_SATA)
sata_print_link_status(ap);
@@ -2359,7 +2579,7 @@ int ata_std_probe_reset(struct ata_port *ap, unsigned int *classes)
ata_reset_fn_t hardreset;
hardreset = NULL;
- if (ap->flags & ATA_FLAG_SATA && ap->ops->scr_read)
+ if (ap->cbl == ATA_CBL_SATA && ap->ops->scr_read)
hardreset = sata_std_hardreset;
return ata_drive_probe_reset(ap, ata_std_probeinit,
@@ -2367,16 +2587,15 @@ int ata_std_probe_reset(struct ata_port *ap, unsigned int *classes)
ata_std_postreset, classes);
}
-static int do_probe_reset(struct ata_port *ap, ata_reset_fn_t reset,
- ata_postreset_fn_t postreset,
- unsigned int *classes)
+int ata_do_reset(struct ata_port *ap, ata_reset_fn_t reset,
+ ata_postreset_fn_t postreset, unsigned int *classes)
{
int i, rc;
for (i = 0; i < ATA_MAX_DEVICES; i++)
classes[i] = ATA_DEV_UNKNOWN;
- rc = reset(ap, 0, classes);
+ rc = reset(ap, classes);
if (rc)
return rc;
@@ -2396,7 +2615,7 @@ static int do_probe_reset(struct ata_port *ap, ata_reset_fn_t reset,
if (postreset)
postreset(ap, classes);
- return classes[0] != ATA_DEV_UNKNOWN ? 0 : -ENODEV;
+ return 0;
}
/**
@@ -2420,8 +2639,6 @@ static int do_probe_reset(struct ata_port *ap, ata_reset_fn_t reset,
* - If classification is supported, fill classes[] with
* recognized class codes.
* - If classification is not supported, leave classes[] alone.
- * - If verbose is non-zero, print error message on failure;
- * otherwise, shut up.
*
* LOCKING:
* Kernel thread context (may sleep)
@@ -2440,22 +2657,46 @@ int ata_drive_probe_reset(struct ata_port *ap, ata_probeinit_fn_t probeinit,
if (probeinit)
probeinit(ap);
- if (softreset) {
- rc = do_probe_reset(ap, softreset, postreset, classes);
- if (rc == 0)
- return 0;
+ if (softreset && !ata_set_sata_spd_needed(ap)) {
+ rc = ata_do_reset(ap, softreset, postreset, classes);
+ if (rc == 0 && classes[0] != ATA_DEV_UNKNOWN)
+ goto done;
+ printk(KERN_INFO "ata%u: softreset failed, will try "
+ "hardreset in 5 secs\n", ap->id);
+ ssleep(5);
}
if (!hardreset)
- return rc;
+ goto done;
- rc = do_probe_reset(ap, hardreset, postreset, classes);
- if (rc == 0 || rc != -ENODEV)
- return rc;
+ while (1) {
+ rc = ata_do_reset(ap, hardreset, postreset, classes);
+ if (rc == 0) {
+ if (classes[0] != ATA_DEV_UNKNOWN)
+ goto done;
+ break;
+ }
+
+ if (ata_down_sata_spd_limit(ap))
+ goto done;
+
+ printk(KERN_INFO "ata%u: hardreset failed, will retry "
+ "in 5 secs\n", ap->id);
+ ssleep(5);
+ }
- if (softreset)
- rc = do_probe_reset(ap, softreset, postreset, classes);
+ if (softreset) {
+ printk(KERN_INFO "ata%u: hardreset succeeded without "
+ "classification, will retry softreset in 5 secs\n",
+ ap->id);
+ ssleep(5);
+ rc = ata_do_reset(ap, softreset, postreset, classes);
+ }
+
+ done:
+ if (rc == 0 && classes[0] == ATA_DEV_UNKNOWN)
+ rc = -ENODEV;
return rc;
}
@@ -2539,15 +2780,14 @@ static int ata_dev_same_device(struct ata_port *ap, struct ata_device *dev,
int ata_dev_revalidate(struct ata_port *ap, struct ata_device *dev,
int post_reset)
{
- unsigned int class;
- u16 *id;
+ unsigned int class = dev->class;
+ u16 *id = NULL;
int rc;
- if (!ata_dev_present(dev))
- return -ENODEV;
-
- class = dev->class;
- id = NULL;
+ if (!ata_dev_enabled(dev)) {
+ rc = -ENODEV;
+ goto fail;
+ }
/* allocate & read ID data */
rc = ata_dev_read_id(ap, dev, &class, post_reset, &id);
@@ -2564,7 +2804,9 @@ int ata_dev_revalidate(struct ata_port *ap, struct ata_device *dev,
dev->id = id;
/* configure device according to the new ID */
- return ata_dev_configure(ap, dev, 0);
+ rc = ata_dev_configure(ap, dev, 0);
+ if (rc == 0)
+ return 0;
fail:
printk(KERN_ERR "ata%u: dev %u revalidation failed (errno=%d)\n",
@@ -2666,23 +2908,34 @@ static void ata_dev_xfermask(struct ata_port *ap, struct ata_device *dev)
unsigned long xfer_mask;
int i;
- xfer_mask = ata_pack_xfermask(ap->pio_mask, ap->mwdma_mask,
- ap->udma_mask);
+ xfer_mask = ata_pack_xfermask(ap->pio_mask,
+ ap->mwdma_mask, ap->udma_mask);
+
+ /* Apply cable rule here. Don't apply it early because when
+ * we handle hot plug the cable type can itself change.
+ */
+ if (ap->cbl == ATA_CBL_PATA40)
+ xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA);
/* FIXME: Use port-wide xfermask for now */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *d = &ap->device[i];
- if (!ata_dev_present(d))
+
+ if (ata_dev_absent(d))
continue;
- xfer_mask &= ata_pack_xfermask(d->pio_mask, d->mwdma_mask,
- d->udma_mask);
+
+ if (ata_dev_disabled(d)) {
+ /* to avoid violating device selection timing */
+ xfer_mask &= ata_pack_xfermask(d->pio_mask,
+ UINT_MAX, UINT_MAX);
+ continue;
+ }
+
+ xfer_mask &= ata_pack_xfermask(d->pio_mask,
+ d->mwdma_mask, d->udma_mask);
xfer_mask &= ata_id_xfermask(d->id);
if (ata_dma_blacklisted(d))
xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
- /* Apply cable rule here. Don't apply it early because when
- we handle hot plug the cable type can itself change */
- if (ap->cbl == ATA_CBL_PATA40)
- xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA);
}
if (ata_dma_blacklisted(dev))
@@ -2693,11 +2946,12 @@ static void ata_dev_xfermask(struct ata_port *ap, struct ata_device *dev)
if (hs->simplex_claimed)
xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
}
+
if (ap->ops->mode_filter)
xfer_mask = ap->ops->mode_filter(ap, dev, xfer_mask);
- ata_unpack_xfermask(xfer_mask, &dev->pio_mask, &dev->mwdma_mask,
- &dev->udma_mask);
+ ata_unpack_xfermask(xfer_mask, &dev->pio_mask,
+ &dev->mwdma_mask, &dev->udma_mask);
}
/**
@@ -2731,7 +2985,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_port *ap,
tf.protocol = ATA_PROT_NODATA;
tf.nsect = dev->xfer_mode;
- err_mask = ata_exec_internal(ap, dev, &tf, DMA_NONE, NULL, 0);
+ err_mask = ata_exec_internal(ap, dev, &tf, NULL, DMA_NONE, NULL, 0);
DPRINTK("EXIT, err_mask=%x\n", err_mask);
return err_mask;
@@ -2771,7 +3025,7 @@ static unsigned int ata_dev_init_params(struct ata_port *ap,
tf.nsect = sectors;
tf.device |= (heads - 1) & 0x0f; /* max head = num. of heads - 1 */
- err_mask = ata_exec_internal(ap, dev, &tf, DMA_NONE, NULL, 0);
+ err_mask = ata_exec_internal(ap, dev, &tf, NULL, DMA_NONE, NULL, 0);
DPRINTK("EXIT, err_mask=%x\n", err_mask);
return err_mask;
@@ -3159,7 +3413,7 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc)
/**
* ata_pio_poll - poll using PIO, depending on current state
- * @ap: the target ata_port
+ * @qc: qc in progress
*
* LOCKING:
* None. (executing in kernel thread context)
@@ -3167,17 +3421,13 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc)
* RETURNS:
* timeout value to use
*/
-
-static unsigned long ata_pio_poll(struct ata_port *ap)
+static unsigned long ata_pio_poll(struct ata_queued_cmd *qc)
{
- struct ata_queued_cmd *qc;
+ struct ata_port *ap = qc->ap;
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);
- WARN_ON(qc == NULL);
-
switch (ap->hsm_task_state) {
case HSM_ST:
case HSM_ST_POLL:
@@ -3211,7 +3461,7 @@ static unsigned long ata_pio_poll(struct ata_port *ap)
/**
* ata_pio_complete - check if drive is busy or idle
- * @ap: the target ata_port
+ * @qc: qc to complete
*
* LOCKING:
* None. (executing in kernel thread context)
@@ -3219,10 +3469,9 @@ static unsigned long ata_pio_poll(struct ata_port *ap)
* RETURNS:
* Non-zero if qc completed, zero otherwise.
*/
-
-static int ata_pio_complete (struct ata_port *ap)
+static int ata_pio_complete(struct ata_queued_cmd *qc)
{
- struct ata_queued_cmd *qc;
+ struct ata_port *ap = qc->ap;
u8 drv_stat;
/*
@@ -3243,9 +3492,6 @@ static int ata_pio_complete (struct ata_port *ap)
}
}
- qc = ata_qc_from_tag(ap, ap->active_tag);
- WARN_ON(qc == NULL);
-
drv_stat = ata_wait_idle(ap);
if (!ata_ok(drv_stat)) {
qc->err_mask |= __ac_err_mask(drv_stat);
@@ -3581,15 +3827,14 @@ err_out:
/**
* ata_pio_block - start PIO on a block
- * @ap: the target ata_port
+ * @qc: qc to transfer block for
*
* LOCKING:
* None. (executing in kernel thread context)
*/
-
-static void ata_pio_block(struct ata_port *ap)
+static void ata_pio_block(struct ata_queued_cmd *qc)
{
- struct ata_queued_cmd *qc;
+ struct ata_port *ap = qc->ap;
u8 status;
/*
@@ -3611,9 +3856,6 @@ static void ata_pio_block(struct ata_port *ap)
}
}
- qc = ata_qc_from_tag(ap, ap->active_tag);
- WARN_ON(qc == NULL);
-
/* check error */
if (status & (ATA_ERR | ATA_DF)) {
qc->err_mask |= AC_ERR_DEV;
@@ -3642,15 +3884,13 @@ static void ata_pio_block(struct ata_port *ap)
}
}
-static void ata_pio_error(struct ata_port *ap)
+static void ata_pio_error(struct ata_queued_cmd *qc)
{
- struct ata_queued_cmd *qc;
-
- qc = ata_qc_from_tag(ap, ap->active_tag);
- WARN_ON(qc == NULL);
+ struct ata_port *ap = qc->ap;
if (qc->tf.command != ATA_CMD_PACKET)
- printk(KERN_WARNING "ata%u: PIO error\n", ap->id);
+ printk(KERN_WARNING "ata%u: dev %u PIO error\n",
+ ap->id, qc->dev->devno);
/* make sure qc->err_mask is available to
* know what's wrong and recover
@@ -3664,7 +3904,8 @@ static void ata_pio_error(struct ata_port *ap)
static void ata_pio_task(void *_data)
{
- struct ata_port *ap = _data;
+ struct ata_queued_cmd *qc = _data;
+ struct ata_port *ap = qc->ap;
unsigned long timeout;
int qc_completed;
@@ -3677,33 +3918,33 @@ fsm_start:
return;
case HSM_ST:
- ata_pio_block(ap);
+ ata_pio_block(qc);
break;
case HSM_ST_LAST:
- qc_completed = ata_pio_complete(ap);
+ qc_completed = ata_pio_complete(qc);
break;
case HSM_ST_POLL:
case HSM_ST_LAST_POLL:
- timeout = ata_pio_poll(ap);
+ timeout = ata_pio_poll(qc);
break;
case HSM_ST_TMOUT:
case HSM_ST_ERR:
- ata_pio_error(ap);
+ ata_pio_error(qc);
return;
}
if (timeout)
- ata_port_queue_task(ap, ata_pio_task, ap, timeout);
+ ata_port_queue_task(ap, ata_pio_task, qc, timeout);
else if (!qc_completed)
goto fsm_start;
}
/**
* atapi_packet_task - Write CDB bytes to hardware
- * @_data: Port to which ATAPI device is attached.
+ * @_data: qc in progress
*
* When device has indicated its readiness to accept
* a CDB, this function is called. Send the CDB.
@@ -3714,17 +3955,12 @@ fsm_start:
* LOCKING:
* Kernel thread context (may sleep)
*/
-
static void atapi_packet_task(void *_data)
{
- struct ata_port *ap = _data;
- struct ata_queued_cmd *qc;
+ struct ata_queued_cmd *qc = _data;
+ struct ata_port *ap = qc->ap;
u8 status;
- qc = ata_qc_from_tag(ap, ap->active_tag);
- WARN_ON(qc == NULL);
- WARN_ON(!(qc->flags & ATA_QCFLAG_ACTIVE));
-
/* sleep-wait for BSY to clear */
DPRINTK("busy wait\n");
if (ata_busy_sleep(ap, ATA_TMOUT_CDB_QUICK, ATA_TMOUT_CDB)) {
@@ -3764,7 +4000,7 @@ static void atapi_packet_task(void *_data)
/* PIO commands are handled by polling */
ap->hsm_task_state = HSM_ST;
- ata_port_queue_task(ap, ata_pio_task, ap, 0);
+ ata_port_queue_task(ap, ata_pio_task, qc, 0);
}
return;
@@ -3774,99 +4010,6 @@ err_out:
}
/**
- * ata_qc_timeout - Handle timeout of queued command
- * @qc: Command that timed out
- *
- * Some part of the kernel (currently, only the SCSI layer)
- * has noticed that the active command on port @ap has not
- * completed after a specified length of time. Handle this
- * condition by disabling DMA (if necessary) and completing
- * transactions, with error if necessary.
- *
- * This also handles the case of the "lost interrupt", where
- * for some reason (possibly hardware bug, possibly driver bug)
- * an interrupt was not delivered to the driver, even though the
- * transaction completed successfully.
- *
- * LOCKING:
- * Inherited from SCSI layer (none, can sleep)
- */
-
-static void ata_qc_timeout(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
- struct ata_host_set *host_set = ap->host_set;
- u8 host_stat = 0, drv_stat;
- unsigned long flags;
-
- DPRINTK("ENTER\n");
-
- ap->hsm_task_state = HSM_ST_IDLE;
-
- spin_lock_irqsave(&host_set->lock, flags);
-
- switch (qc->tf.protocol) {
-
- case ATA_PROT_DMA:
- case ATA_PROT_ATAPI_DMA:
- host_stat = ap->ops->bmdma_status(ap);
-
- /* before we do anything else, clear DMA-Start bit */
- ap->ops->bmdma_stop(qc);
-
- /* fall through */
-
- default:
- ata_altstatus(ap);
- drv_stat = ata_chk_status(ap);
-
- /* ack bmdma irq events */
- ap->ops->irq_clear(ap);
-
- printk(KERN_ERR "ata%u: command 0x%x timeout, stat 0x%x host_stat 0x%x\n",
- ap->id, qc->tf.command, drv_stat, host_stat);
-
- /* complete taskfile transaction */
- qc->err_mask |= ac_err_mask(drv_stat);
- break;
- }
-
- spin_unlock_irqrestore(&host_set->lock, flags);
-
- ata_eh_qc_complete(qc);
-
- DPRINTK("EXIT\n");
-}
-
-/**
- * ata_eng_timeout - Handle timeout of queued command
- * @ap: Port on which timed-out command is active
- *
- * Some part of the kernel (currently, only the SCSI layer)
- * has noticed that the active command on port @ap has not
- * completed after a specified length of time. Handle this
- * condition by disabling DMA (if necessary) and completing
- * transactions, with error if necessary.
- *
- * This also handles the case of the "lost interrupt", where
- * for some reason (possibly hardware bug, possibly driver bug)
- * an interrupt was not delivered to the driver, even though the
- * transaction completed successfully.
- *
- * LOCKING:
- * Inherited from SCSI layer (none, can sleep)
- */
-
-void ata_eng_timeout(struct ata_port *ap)
-{
- DPRINTK("ENTER\n");
-
- ata_qc_timeout(ata_qc_from_tag(ap, ap->active_tag));
-
- DPRINTK("EXIT\n");
-}
-
-/**
* ata_qc_new - Request an available ATA command, for queueing
* @ap: Port associated with device @dev
* @dev: Device from whom we request an available command structure
@@ -3997,15 +4140,14 @@ static inline int ata_should_dma_map(struct ata_queued_cmd *qc)
*
* LOCKING:
* spin_lock_irqsave(host_set lock)
- *
- * RETURNS:
- * Zero on success, AC_ERR_* mask on failure
*/
-
-unsigned int ata_qc_issue(struct ata_queued_cmd *qc)
+void ata_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
+ qc->ap->active_tag = qc->tag;
+ qc->flags |= ATA_QCFLAG_ACTIVE;
+
if (ata_should_dma_map(qc)) {
if (qc->flags & ATA_QCFLAG_SG) {
if (ata_sg_setup(qc))
@@ -4020,17 +4162,18 @@ unsigned int ata_qc_issue(struct ata_queued_cmd *qc)
ap->ops->qc_prep(qc);
- qc->ap->active_tag = qc->tag;
- qc->flags |= ATA_QCFLAG_ACTIVE;
-
- return ap->ops->qc_issue(qc);
+ qc->err_mask |= ap->ops->qc_issue(qc);
+ if (unlikely(qc->err_mask))
+ goto err;
+ return;
sg_err:
qc->flags &= ~ATA_QCFLAG_DMAMAP;
- return AC_ERR_SYSTEM;
+ qc->err_mask |= AC_ERR_SYSTEM;
+err:
+ ata_qc_complete(qc);
}
-
/**
* ata_qc_issue_prot - issue taskfile to device in proto-dependent manner
* @qc: command to issue to device
@@ -4070,26 +4213,26 @@ unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc)
ata_qc_set_polling(qc);
ata_tf_to_host(ap, &qc->tf);
ap->hsm_task_state = HSM_ST;
- ata_port_queue_task(ap, ata_pio_task, ap, 0);
+ ata_port_queue_task(ap, ata_pio_task, qc, 0);
break;
case ATA_PROT_ATAPI:
ata_qc_set_polling(qc);
ata_tf_to_host(ap, &qc->tf);
- ata_port_queue_task(ap, atapi_packet_task, ap, 0);
+ ata_port_queue_task(ap, atapi_packet_task, qc, 0);
break;
case ATA_PROT_ATAPI_NODATA:
ap->flags |= ATA_FLAG_NOINTR;
ata_tf_to_host(ap, &qc->tf);
- ata_port_queue_task(ap, atapi_packet_task, ap, 0);
+ ata_port_queue_task(ap, atapi_packet_task, qc, 0);
break;
case ATA_PROT_ATAPI_DMA:
ap->flags |= ATA_FLAG_NOINTR;
ap->ops->tf_load(ap, &qc->tf); /* load tf registers */
ap->ops->bmdma_setup(qc); /* set up bmdma */
- ata_port_queue_task(ap, atapi_packet_task, ap, 0);
+ ata_port_queue_task(ap, atapi_packet_task, qc, 0);
break;
default:
@@ -4211,7 +4354,7 @@ irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs)
ap = host_set->ports[i];
if (ap &&
- !(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))) {
+ !(ap->flags & (ATA_FLAG_DISABLED | ATA_FLAG_NOINTR))) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
@@ -4243,7 +4386,7 @@ static int ata_do_simple_cmd(struct ata_port *ap, struct ata_device *dev,
tf.flags |= ATA_TFLAG_DEVICE;
tf.protocol = ATA_PROT_NODATA;
- err = ata_exec_internal(ap, dev, &tf, DMA_NONE, NULL, 0);
+ err = ata_exec_internal(ap, dev, &tf, NULL, DMA_NONE, NULL, 0);
if (err)
printk(KERN_ERR "%s: ata command failed: %d\n",
__FUNCTION__, err);
@@ -4289,10 +4432,12 @@ static int ata_start_drive(struct ata_port *ap, struct ata_device *dev)
int ata_device_resume(struct ata_port *ap, struct ata_device *dev)
{
if (ap->flags & ATA_FLAG_SUSPENDED) {
+ struct ata_device *failed_dev;
ap->flags &= ~ATA_FLAG_SUSPENDED;
- ata_set_mode(ap);
+ while (ata_set_mode(ap, &failed_dev))
+ ata_dev_disable(ap, failed_dev);
}
- if (!ata_dev_present(dev))
+ if (!ata_dev_enabled(dev))
return 0;
if (dev->class == ATA_DEV_ATA)
ata_start_drive(ap, dev);
@@ -4310,7 +4455,7 @@ int ata_device_resume(struct ata_port *ap, struct ata_device *dev)
*/
int ata_device_suspend(struct ata_port *ap, struct ata_device *dev, pm_message_t state)
{
- if (!ata_dev_present(dev))
+ if (!ata_dev_enabled(dev))
return 0;
if (dev->class == ATA_DEV_ATA)
ata_flush_cache(ap, dev);
@@ -4430,7 +4575,7 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
host->unique_id = ata_unique_id++;
host->max_cmd_len = 12;
- ap->flags = ATA_FLAG_PORT_DISABLED;
+ ap->flags = ATA_FLAG_DISABLED;
ap->id = host->unique_id;
ap->host = host;
ap->ctl = ATA_DEVCTL_OBS;
@@ -4445,6 +4590,7 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
ap->flags |= ent->host_flags;
ap->ops = ent->port_ops;
ap->cbl = ATA_CBL_NONE;
+ ap->sata_spd_limit = UINT_MAX;
ap->active_tag = ATA_TAG_POISON;
ap->last_ctl = 0xFF;
@@ -4505,7 +4651,7 @@ static struct ata_port * ata_host_add(const struct ata_probe_ent *ent,
host->transportt = &ata_scsi_transport_template;
- ap = (struct ata_port *) &host->hostdata[0];
+ ap = ata_shost_to_port(host);
ata_host_init(ap, host, host_set, ent, port_no);
@@ -4718,7 +4864,7 @@ void ata_host_set_remove(struct ata_host_set *host_set)
int ata_scsi_release(struct Scsi_Host *host)
{
- struct ata_port *ap = (struct ata_port *) &host->hostdata[0];
+ struct ata_port *ap = ata_shost_to_port(host);
int i;
DPRINTK("ENTER\n");
@@ -4885,6 +5031,52 @@ int ata_ratelimit(void)
return rc;
}
+/**
+ * ata_wait_register - wait until register value changes
+ * @reg: IO-mapped register
+ * @mask: Mask to apply to read register value
+ * @val: Wait condition
+ * @interval_msec: polling interval in milliseconds
+ * @timeout_msec: timeout in milliseconds
+ *
+ * Waiting for some bits of register to change is a common
+ * operation for ATA controllers. This function reads 32bit LE
+ * IO-mapped register @reg and tests for the following condition.
+ *
+ * (*@reg & mask) != val
+ *
+ * If the condition is met, it returns; otherwise, the process is
+ * repeated after @interval_msec until timeout.
+ *
+ * LOCKING:
+ * Kernel thread context (may sleep)
+ *
+ * RETURNS:
+ * The final register value.
+ */
+u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
+ unsigned long interval_msec,
+ unsigned long timeout_msec)
+{
+ unsigned long timeout;
+ u32 tmp;
+
+ tmp = ioread32(reg);
+
+ /* Calculate timeout _after_ the first read to make sure
+ * preceding writes reach the controller before starting to
+ * eat away the timeout.
+ */
+ timeout = jiffies + (timeout_msec * HZ) / 1000;
+
+ while ((tmp & mask) == val && time_before(jiffies, timeout)) {
+ msleep(interval_msec);
+ tmp = ioread32(reg);
+ }
+
+ return tmp;
+}
+
/*
* libata is essentially a library of internal helper functions for
* low-level ATA host controller drivers. As such, the API/ABI is
@@ -4900,7 +5092,6 @@ EXPORT_SYMBOL_GPL(ata_sg_init);
EXPORT_SYMBOL_GPL(ata_sg_init_one);
EXPORT_SYMBOL_GPL(__ata_qc_complete);
EXPORT_SYMBOL_GPL(ata_qc_issue_prot);
-EXPORT_SYMBOL_GPL(ata_eng_timeout);
EXPORT_SYMBOL_GPL(ata_tf_load);
EXPORT_SYMBOL_GPL(ata_tf_read);
EXPORT_SYMBOL_GPL(ata_noop_dev_select);
@@ -4922,6 +5113,7 @@ EXPORT_SYMBOL_GPL(ata_bmdma_irq_clear);
EXPORT_SYMBOL_GPL(ata_bmdma_status);
EXPORT_SYMBOL_GPL(ata_bmdma_stop);
EXPORT_SYMBOL_GPL(ata_port_probe);
+EXPORT_SYMBOL_GPL(ata_set_sata_spd);
EXPORT_SYMBOL_GPL(sata_phy_reset);
EXPORT_SYMBOL_GPL(__sata_phy_reset);
EXPORT_SYMBOL_GPL(ata_bus_reset);
@@ -4936,19 +5128,17 @@ EXPORT_SYMBOL_GPL(ata_dev_classify);
EXPORT_SYMBOL_GPL(ata_dev_pair);
EXPORT_SYMBOL_GPL(ata_port_disable);
EXPORT_SYMBOL_GPL(ata_ratelimit);
+EXPORT_SYMBOL_GPL(ata_wait_register);
EXPORT_SYMBOL_GPL(ata_busy_sleep);
EXPORT_SYMBOL_GPL(ata_port_queue_task);
EXPORT_SYMBOL_GPL(ata_scsi_ioctl);
EXPORT_SYMBOL_GPL(ata_scsi_queuecmd);
-EXPORT_SYMBOL_GPL(ata_scsi_error);
EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
EXPORT_SYMBOL_GPL(ata_scsi_release);
EXPORT_SYMBOL_GPL(ata_host_intr);
EXPORT_SYMBOL_GPL(ata_id_string);
EXPORT_SYMBOL_GPL(ata_id_c_string);
EXPORT_SYMBOL_GPL(ata_scsi_simulate);
-EXPORT_SYMBOL_GPL(ata_eh_qc_complete);
-EXPORT_SYMBOL_GPL(ata_eh_qc_retry);
EXPORT_SYMBOL_GPL(ata_pio_need_iordy);
EXPORT_SYMBOL_GPL(ata_timing_compute);
@@ -4970,3 +5160,8 @@ EXPORT_SYMBOL_GPL(ata_device_suspend);
EXPORT_SYMBOL_GPL(ata_device_resume);
EXPORT_SYMBOL_GPL(ata_scsi_device_suspend);
EXPORT_SYMBOL_GPL(ata_scsi_device_resume);
+
+EXPORT_SYMBOL_GPL(ata_scsi_error);
+EXPORT_SYMBOL_GPL(ata_eng_timeout);
+EXPORT_SYMBOL_GPL(ata_eh_qc_complete);
+EXPORT_SYMBOL_GPL(ata_eh_qc_retry);
diff --git a/drivers/scsi/libata-eh.c b/drivers/scsi/libata-eh.c
new file mode 100644
index 00000000000..c31b13fd530
--- /dev/null
+++ b/drivers/scsi/libata-eh.c
@@ -0,0 +1,263 @@
+/*
+ * libata-eh.c - libata error handling
+ *
+ * Maintained by: Jeff Garzik <jgarzik@pobox.com>
+ * Please ALWAYS copy linux-ide@vger.kernel.org
+ * on emails.
+ *
+ * Copyright 2006 Tejun Heo <htejun@gmail.com>
+ *
+ *
+ * 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 the Free Software Foundation; either version 2, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
+ * USA.
+ *
+ *
+ * libata documentation is available via 'make {ps|pdf}docs',
+ * as Documentation/DocBook/libata.*
+ *
+ * Hardware documentation available from http://www.t13.org/ and
+ * http://www.sata-io.org/
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+
+#include <linux/libata.h>
+
+#include "libata.h"
+
+/**
+ * ata_scsi_timed_out - SCSI layer time out callback
+ * @cmd: timed out SCSI command
+ *
+ * Handles SCSI layer timeout. We race with normal completion of
+ * the qc for @cmd. If the qc is already gone, we lose and let
+ * the scsi command finish (EH_HANDLED). Otherwise, the qc has
+ * timed out and EH should be invoked. Prevent ata_qc_complete()
+ * from finishing it by setting EH_SCHEDULED and return
+ * EH_NOT_HANDLED.
+ *
+ * LOCKING:
+ * Called from timer context
+ *
+ * RETURNS:
+ * EH_HANDLED or EH_NOT_HANDLED
+ */
+enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd)
+{
+ struct Scsi_Host *host = cmd->device->host;
+ struct ata_port *ap = ata_shost_to_port(host);
+ unsigned long flags;
+ struct ata_queued_cmd *qc;
+ enum scsi_eh_timer_return ret = EH_HANDLED;
+
+ DPRINTK("ENTER\n");
+
+ spin_lock_irqsave(&ap->host_set->lock, flags);
+ qc = ata_qc_from_tag(ap, ap->active_tag);
+ if (qc) {
+ WARN_ON(qc->scsicmd != cmd);
+ qc->flags |= ATA_QCFLAG_EH_SCHEDULED;
+ qc->err_mask |= AC_ERR_TIMEOUT;
+ ret = EH_NOT_HANDLED;
+ }
+ spin_unlock_irqrestore(&ap->host_set->lock, flags);
+
+ DPRINTK("EXIT, ret=%d\n", ret);
+ return ret;
+}
+
+/**
+ * ata_scsi_error - SCSI layer error handler callback
+ * @host: SCSI host on which error occurred
+ *
+ * Handles SCSI-layer-thrown error events.
+ *
+ * LOCKING:
+ * Inherited from SCSI layer (none, can sleep)
+ *
+ * RETURNS:
+ * Zero.
+ */
+void ata_scsi_error(struct Scsi_Host *host)
+{
+ struct ata_port *ap = ata_shost_to_port(host);
+
+ DPRINTK("ENTER\n");
+
+ /* synchronize with IRQ handler and port task */
+ spin_unlock_wait(&ap->host_set->lock);
+ ata_port_flush_task(ap);
+
+ WARN_ON(ata_qc_from_tag(ap, ap->active_tag) == NULL);
+
+ ap->ops->eng_timeout(ap);
+
+ WARN_ON(host->host_failed || !list_empty(&host->eh_cmd_q));
+
+ scsi_eh_flush_done_q(&ap->eh_done_q);
+
+ DPRINTK("EXIT\n");
+}
+
+/**
+ * ata_qc_timeout - Handle timeout of queued command
+ * @qc: Command that timed out
+ *
+ * Some part of the kernel (currently, only the SCSI layer)
+ * has noticed that the active command on port @ap has not
+ * completed after a specified length of time. Handle this
+ * condition by disabling DMA (if necessary) and completing
+ * transactions, with error if necessary.
+ *
+ * This also handles the case of the "lost interrupt", where
+ * for some reason (possibly hardware bug, possibly driver bug)
+ * an interrupt was not delivered to the driver, even though the
+ * transaction completed successfully.
+ *
+ * LOCKING:
+ * Inherited from SCSI layer (none, can sleep)
+ */
+static void ata_qc_timeout(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_host_set *host_set = ap->host_set;
+ u8 host_stat = 0, drv_stat;
+ unsigned long flags;
+
+ DPRINTK("ENTER\n");
+
+ ap->hsm_task_state = HSM_ST_IDLE;
+
+ spin_lock_irqsave(&host_set->lock, flags);
+
+ switch (qc->tf.protocol) {
+
+ case ATA_PROT_DMA:
+ case ATA_PROT_ATAPI_DMA:
+ host_stat = ap->ops->bmdma_status(ap);
+
+ /* before we do anything else, clear DMA-Start bit */
+ ap->ops->bmdma_stop(qc);
+
+ /* fall through */
+
+ default:
+ ata_altstatus(ap);
+ drv_stat = ata_chk_status(ap);
+
+ /* ack bmdma irq events */
+ ap->ops->irq_clear(ap);
+
+ printk(KERN_ERR "ata%u: command 0x%x timeout, stat 0x%x host_stat 0x%x\n",
+ ap->id, qc->tf.command, drv_stat, host_stat);
+
+ /* complete taskfile transaction */
+ qc->err_mask |= ac_err_mask(drv_stat);
+ break;
+ }
+
+ spin_unlock_irqrestore(&host_set->lock, flags);
+
+ ata_eh_qc_complete(qc);
+
+ DPRINTK("EXIT\n");
+}
+
+/**
+ * ata_eng_timeout - Handle timeout of queued command
+ * @ap: Port on which timed-out command is active
+ *
+ * Some part of the kernel (currently, only the SCSI layer)
+ * has noticed that the active command on port @ap has not
+ * completed after a specified length of time. Handle this
+ * condition by disabling DMA (if necessary) and completing
+ * transactions, with error if necessary.
+ *
+ * This also handles the case of the "lost interrupt", where
+ * for some reason (possibly hardware bug, possibly driver bug)
+ * an interrupt was not delivered to the driver, even though the
+ * transaction completed successfully.
+ *
+ * LOCKING:
+ * Inherited from SCSI layer (none, can sleep)
+ */
+void ata_eng_timeout(struct ata_port *ap)
+{
+ DPRINTK("ENTER\n");
+
+ ata_qc_timeout(ata_qc_from_tag(ap, ap->active_tag));
+
+ DPRINTK("EXIT\n");
+}
+
+static void ata_eh_scsidone(struct scsi_cmnd *scmd)
+{
+ /* nada */
+}
+
+static void __ata_eh_qc_complete(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ap->host_set->lock, flags);
+ qc->scsidone = ata_eh_scsidone;
+ __ata_qc_complete(qc);
+ WARN_ON(ata_tag_valid(qc->tag));
+ spin_unlock_irqrestore(&ap->host_set->lock, flags);
+
+ scsi_eh_finish_cmd(scmd, &ap->eh_done_q);
+}
+
+/**
+ * ata_eh_qc_complete - Complete an active ATA command from EH
+ * @qc: Command to complete
+ *
+ * Indicate to the mid and upper layers that an ATA command has
+ * completed. To be used from EH.
+ */
+void ata_eh_qc_complete(struct ata_queued_cmd *qc)
+{
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ scmd->retries = scmd->allowed;
+ __ata_eh_qc_complete(qc);
+}
+
+/**
+ * ata_eh_qc_retry - Tell midlayer to retry an ATA command after EH
+ * @qc: Command to retry
+ *
+ * Indicate to the mid and upper layers that an ATA command
+ * should be retried. To be used from EH.
+ *
+ * SCSI midlayer limits the number of retries to scmd->allowed.
+ * scmd->retries is decremented for commands which get retried
+ * due to unrelated failures (qc->err_mask is zero).
+ */
+void ata_eh_qc_retry(struct ata_queued_cmd *qc)
+{
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ if (!qc->err_mask && scmd->retries)
+ scmd->retries--;
+ __ata_eh_qc_complete(qc);
+}
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 410c78795ca..159537879f7 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -53,7 +53,6 @@
typedef unsigned int (*ata_xlat_func_t)(struct ata_queued_cmd *qc, const u8 *scsicmd);
static struct ata_device *
ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev);
-enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
#define RW_RECOVERY_MPAGE 0x1
#define RW_RECOVERY_MPAGE_LEN 12
@@ -99,6 +98,7 @@ static const u8 def_control_mpage[CONTROL_MPAGE_LEN] = {
* It just needs the eh_timed_out hook.
*/
struct scsi_transport_template ata_scsi_transport_template = {
+ .eh_strategy_handler = ata_scsi_error,
.eh_timed_out = ata_scsi_timed_out,
};
@@ -395,7 +395,7 @@ void ata_dump_status(unsigned id, struct ata_taskfile *tf)
int ata_scsi_device_resume(struct scsi_device *sdev)
{
- struct ata_port *ap = (struct ata_port *) &sdev->host->hostdata[0];
+ struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev = &ap->device[sdev->id];
return ata_device_resume(ap, dev);
@@ -403,7 +403,7 @@ int ata_scsi_device_resume(struct scsi_device *sdev)
int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t state)
{
- struct ata_port *ap = (struct ata_port *) &sdev->host->hostdata[0];
+ struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev = &ap->device[sdev->id];
return ata_device_suspend(ap, dev, state);
@@ -546,16 +546,11 @@ void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc)
cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
/*
- * Read the controller registers.
- */
- WARN_ON(qc->ap->ops->tf_read == NULL);
- qc->ap->ops->tf_read(qc->ap, tf);
-
- /*
* Use ata_to_sense_error() to map status register bits
* onto sense key, asc & ascq.
*/
- if (tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
+ if (qc->err_mask ||
+ tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
ata_to_sense_error(qc->ap->id, tf->command, tf->feature,
&sb[1], &sb[2], &sb[3]);
sb[1] &= 0x0f;
@@ -621,16 +616,11 @@ void ata_gen_fixed_sense(struct ata_queued_cmd *qc)
cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
/*
- * Read the controller registers.
- */
- WARN_ON(qc->ap->ops->tf_read == NULL);
- qc->ap->ops->tf_read(qc->ap, tf);
-
- /*
* Use ata_to_sense_error() to map status register bits
* onto sense key, asc & ascq.
*/
- if (tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
+ if (qc->err_mask ||
+ tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
ata_to_sense_error(qc->ap->id, tf->command, tf->feature,
&sb[2], &sb[12], &sb[13]);
sb[2] &= 0x0f;
@@ -714,7 +704,7 @@ int ata_scsi_slave_config(struct scsi_device *sdev)
struct ata_port *ap;
struct ata_device *dev;
- ap = (struct ata_port *) &sdev->host->hostdata[0];
+ ap = ata_shost_to_port(sdev->host);
dev = &ap->device[sdev->id];
ata_scsi_dev_config(sdev, dev);
@@ -724,141 +714,6 @@ int ata_scsi_slave_config(struct scsi_device *sdev)
}
/**
- * ata_scsi_timed_out - SCSI layer time out callback
- * @cmd: timed out SCSI command
- *
- * Handles SCSI layer timeout. We race with normal completion of
- * the qc for @cmd. If the qc is already gone, we lose and let
- * the scsi command finish (EH_HANDLED). Otherwise, the qc has
- * timed out and EH should be invoked. Prevent ata_qc_complete()
- * from finishing it by setting EH_SCHEDULED and return
- * EH_NOT_HANDLED.
- *
- * LOCKING:
- * Called from timer context
- *
- * RETURNS:
- * EH_HANDLED or EH_NOT_HANDLED
- */
-enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd)
-{
- struct Scsi_Host *host = cmd->device->host;
- struct ata_port *ap = (struct ata_port *) &host->hostdata[0];
- unsigned long flags;
- struct ata_queued_cmd *qc;
- enum scsi_eh_timer_return ret = EH_HANDLED;
-
- DPRINTK("ENTER\n");
-
- spin_lock_irqsave(&ap->host_set->lock, flags);
- qc = ata_qc_from_tag(ap, ap->active_tag);
- if (qc) {
- WARN_ON(qc->scsicmd != cmd);
- qc->flags |= ATA_QCFLAG_EH_SCHEDULED;
- qc->err_mask |= AC_ERR_TIMEOUT;
- ret = EH_NOT_HANDLED;
- }
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
- DPRINTK("EXIT, ret=%d\n", ret);
- return ret;
-}
-
-/**
- * ata_scsi_error - SCSI layer error handler callback
- * @host: SCSI host on which error occurred
- *
- * Handles SCSI-layer-thrown error events.
- *
- * LOCKING:
- * Inherited from SCSI layer (none, can sleep)
- *
- * RETURNS:
- * Zero.
- */
-
-int ata_scsi_error(struct Scsi_Host *host)
-{
- struct ata_port *ap;
- unsigned long flags;
-
- DPRINTK("ENTER\n");
-
- ap = (struct ata_port *) &host->hostdata[0];
-
- spin_lock_irqsave(&ap->host_set->lock, flags);
- WARN_ON(ap->flags & ATA_FLAG_IN_EH);
- ap->flags |= ATA_FLAG_IN_EH;
- WARN_ON(ata_qc_from_tag(ap, ap->active_tag) == NULL);
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
- ata_port_flush_task(ap);
-
- ap->ops->eng_timeout(ap);
-
- WARN_ON(host->host_failed || !list_empty(&host->eh_cmd_q));
-
- scsi_eh_flush_done_q(&ap->eh_done_q);
-
- spin_lock_irqsave(&ap->host_set->lock, flags);
- ap->flags &= ~ATA_FLAG_IN_EH;
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
- DPRINTK("EXIT\n");
- return 0;
-}
-
-static void ata_eh_scsidone(struct scsi_cmnd *scmd)
-{
- /* nada */
-}
-
-static void __ata_eh_qc_complete(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
- struct scsi_cmnd *scmd = qc->scsicmd;
- unsigned long flags;
-
- spin_lock_irqsave(&ap->host_set->lock, flags);
- qc->scsidone = ata_eh_scsidone;
- __ata_qc_complete(qc);
- WARN_ON(ata_tag_valid(qc->tag));
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
- scsi_eh_finish_cmd(scmd, &ap->eh_done_q);
-}
-
-/**
- * ata_eh_qc_complete - Complete an active ATA command from EH
- * @qc: Command to complete
- *
- * Indicate to the mid and upper layers that an ATA command has
- * completed. To be used from EH.
- */
-void ata_eh_qc_complete(struct ata_queued_cmd *qc)
-{
- struct scsi_cmnd *scmd = qc->scsicmd;
- scmd->retries = scmd->allowed;
- __ata_eh_qc_complete(qc);
-}
-
-/**
- * ata_eh_qc_retry - Tell midlayer to retry an ATA command after EH
- * @qc: Command to retry
- *
- * Indicate to the mid and upper layers that an ATA command
- * should be retried. To be used from EH.
- *
- * SCSI midlayer limits the number of retries to scmd->allowed.
- * This function might need to adjust scmd->retries for commands
- * which get retried due to unrelated NCQ failures.
- */
-void ata_eh_qc_retry(struct ata_queued_cmd *qc)
-{
- __ata_eh_qc_complete(qc);
-}
-
-/**
* ata_scsi_start_stop_xlat - Translate SCSI START STOP UNIT command
* @qc: Storage for translated ATA taskfile
* @scsicmd: SCSI command to translate
@@ -1197,6 +1052,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
u64 block;
u32 n_block;
+ qc->flags |= ATA_QCFLAG_IO;
tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
if (scsicmd[0] == WRITE_10 || scsicmd[0] == WRITE_6 ||
@@ -1343,11 +1199,14 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
*/
if (((cdb[0] == ATA_16) || (cdb[0] == ATA_12)) &&
((cdb[2] & 0x20) || need_sense)) {
+ qc->ap->ops->tf_read(qc->ap, &qc->tf);
ata_gen_ata_desc_sense(qc);
} else {
if (!need_sense) {
cmd->result = SAM_STAT_GOOD;
} else {
+ qc->ap->ops->tf_read(qc->ap, &qc->tf);
+
/* TODO: decide which descriptor format to use
* for 48b LBA devices and call that here
* instead of the fixed desc, which is only
@@ -1431,9 +1290,7 @@ static void ata_scsi_translate(struct ata_port *ap, struct ata_device *dev,
goto early_finish;
/* select device, send command to hardware */
- qc->err_mask = ata_qc_issue(qc);
- if (qc->err_mask)
- ata_qc_complete(qc);
+ ata_qc_issue(qc);
VPRINTK("EXIT\n");
return;
@@ -2141,13 +1998,15 @@ void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8
static void atapi_sense_complete(struct ata_queued_cmd *qc)
{
- if (qc->err_mask && ((qc->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
* correct for ATA, not ATAPI
*/
+ qc->ap->ops->tf_read(qc->ap, &qc->tf);
ata_gen_ata_desc_sense(qc);
+ }
qc->scsidone(qc->scsicmd);
ata_qc_free(qc);
@@ -2199,9 +2058,7 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
qc->complete_fn = atapi_sense_complete;
- qc->err_mask = ata_qc_issue(qc);
- if (qc->err_mask)
- ata_qc_complete(qc);
+ ata_qc_issue(qc);
DPRINTK("EXIT\n");
}
@@ -2217,17 +2074,15 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
cmd->result = SAM_STAT_CHECK_CONDITION;
atapi_request_sense(qc);
return;
- }
-
- else if (unlikely(err_mask))
+ } else if (unlikely(err_mask)) {
/* FIXME: not quite right; we don't want the
* translation of taskfile registers into
* a sense descriptors, since that's only
* correct for ATA, not ATAPI
*/
+ qc->ap->ops->tf_read(qc->ap, &qc->tf);
ata_gen_ata_desc_sense(qc);
-
- else {
+ } else {
u8 *scsicmd = cmd->cmnd;
if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) {
@@ -2309,11 +2164,9 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc, const u8 *scsicmd)
qc->tf.protocol = ATA_PROT_ATAPI_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
-#ifdef ATAPI_ENABLE_DMADIR
- /* some SATA bridges need us to indicate data xfer direction */
- if (cmd->sc_data_direction != DMA_TO_DEVICE)
+ if (atapi_dmadir && (cmd->sc_data_direction != DMA_TO_DEVICE))
+ /* some SATA bridges need us to indicate data xfer direction */
qc->tf.feature |= ATAPI_DMADIR;
-#endif
}
qc->nbytes = cmd->bufflen;
@@ -2353,7 +2206,7 @@ ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev)
(scsidev->lun != 0)))
return NULL;
- if (unlikely(!ata_dev_present(dev)))
+ if (unlikely(!ata_dev_enabled(dev)))
return NULL;
if (!atapi_enabled || (ap->flags & ATA_FLAG_NO_ATAPI)) {
@@ -2625,7 +2478,7 @@ int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
struct scsi_device *scsidev = cmd->device;
struct Scsi_Host *shost = scsidev->host;
- ap = (struct ata_port *) &shost->hostdata[0];
+ ap = ata_shost_to_port(shost);
spin_unlock(shost->host_lock);
spin_lock(&ap->host_set->lock);
@@ -2741,13 +2594,13 @@ void ata_scsi_scan_host(struct ata_port *ap)
struct ata_device *dev;
unsigned int i;
- if (ap->flags & ATA_FLAG_PORT_DISABLED)
+ if (ap->flags & ATA_FLAG_DISABLED)
return;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
- if (ata_dev_present(dev))
+ if (ata_dev_enabled(dev))
scsi_scan_target(&ap->host->shost_gendev, 0, i, 0, 0);
}
}
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index 65f52beea88..3f8b0a86378 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -29,7 +29,7 @@
#define __LIBATA_H__
#define DRV_NAME "libata"
-#define DRV_VERSION "1.20" /* must be exactly four chars */
+#define DRV_VERSION "1.30" /* must be exactly four chars */
struct ata_scsi_args {
struct ata_port *ap;
@@ -41,13 +41,25 @@ struct ata_scsi_args {
/* libata-core.c */
extern int atapi_enabled;
+extern int atapi_dmadir;
extern int libata_fua;
extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
struct ata_device *dev);
extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
+extern void ata_dev_disable(struct ata_port *ap, struct ata_device *dev);
extern void ata_port_flush_task(struct ata_port *ap);
+extern unsigned ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
+ struct ata_taskfile *tf, const u8 *cdb,
+ int dma_dir, void *buf, unsigned int buflen);
+extern int ata_down_sata_spd_limit(struct ata_port *ap);
+extern int ata_set_sata_spd_needed(struct ata_port *ap);
+extern int ata_down_xfermask_limit(struct ata_port *ap, struct ata_device *dev,
+ int force_pio0);
+extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
+extern int ata_do_reset(struct ata_port *ap, ata_reset_fn_t reset,
+ ata_postreset_fn_t postreset, unsigned int *classes);
extern void ata_qc_free(struct ata_queued_cmd *qc);
-extern unsigned int ata_qc_issue(struct ata_queued_cmd *qc);
+extern void ata_qc_issue(struct ata_queued_cmd *qc);
extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
extern void ata_dev_select(struct ata_port *ap, unsigned int device,
unsigned int wait, unsigned int can_sleep);
@@ -60,7 +72,6 @@ extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
extern struct scsi_transport_template ata_scsi_transport_template;
extern void ata_scsi_scan_host(struct ata_port *ap);
-extern int ata_scsi_error(struct Scsi_Host *host);
extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
@@ -90,4 +101,8 @@ extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
unsigned int (*actor) (struct ata_scsi_args *args,
u8 *rbuf, unsigned int buflen));
+/* libata-eh.c */
+extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
+extern void ata_scsi_error(struct Scsi_Host *host);
+
#endif /* __LIBATA_H__ */
diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c
index 5609847e254..ee449b29fc8 100644
--- a/drivers/scsi/pcmcia/aha152x_stub.c
+++ b/drivers/scsi/pcmcia/aha152x_stub.c
@@ -89,29 +89,29 @@ MODULE_LICENSE("Dual MPL/GPL");
/*====================================================================*/
typedef struct scsi_info_t {
- dev_link_t link;
+ struct pcmcia_device *p_dev;
dev_node_t node;
struct Scsi_Host *host;
} scsi_info_t;
-static void aha152x_release_cs(dev_link_t *link);
+static void aha152x_release_cs(struct pcmcia_device *link);
static void aha152x_detach(struct pcmcia_device *p_dev);
-static void aha152x_config_cs(dev_link_t *link);
+static int aha152x_config_cs(struct pcmcia_device *link);
-static dev_link_t *dev_list;
+static struct pcmcia_device *dev_list;
-static int aha152x_attach(struct pcmcia_device *p_dev)
+static int aha152x_probe(struct pcmcia_device *link)
{
scsi_info_t *info;
- dev_link_t *link;
-
+
DEBUG(0, "aha152x_attach()\n");
/* Create new SCSI device */
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (!info) return -ENOMEM;
memset(info, 0, sizeof(*info));
- link = &info->link; link->priv = info;
+ info->p_dev = link;
+ link->priv = info;
link->io.NumPorts1 = 0x20;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
@@ -119,41 +119,22 @@ static int aha152x_attach(struct pcmcia_device *p_dev)
link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.Vcc = 50;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.Present = PRESENT_OPTION;
- link->handle = p_dev;
- p_dev->instance = link;
-
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- aha152x_config_cs(link);
-
- return 0;
+ return aha152x_config_cs(link);
} /* aha152x_attach */
/*====================================================================*/
-static void aha152x_detach(struct pcmcia_device *p_dev)
+static void aha152x_detach(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(p_dev);
- dev_link_t **linkp;
-
DEBUG(0, "aha152x_detach(0x%p)\n", link);
-
- /* Locate device structure */
- for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
- if (*linkp == link) break;
- if (*linkp == NULL)
- return;
- if (link->state & DEV_CONFIG)
- aha152x_release_cs(link);
+ aha152x_release_cs(link);
/* Unlink device structure, free bits */
- *linkp = link->next;
kfree(link->priv);
-
} /* aha152x_detach */
/*====================================================================*/
@@ -161,9 +142,8 @@ static void aha152x_detach(struct pcmcia_device *p_dev)
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
-static void aha152x_config_cs(dev_link_t *link)
+static int aha152x_config_cs(struct pcmcia_device *link)
{
- client_handle_t handle = link->handle;
scsi_info_t *info = link->priv;
struct aha152x_setup s;
tuple_t tuple;
@@ -178,19 +158,16 @@ static void aha152x_config_cs(dev_link_t *link)
tuple.TupleData = tuple_data;
tuple.TupleDataMax = 64;
tuple.TupleOffset = 0;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
- CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
- CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
link->conf.ConfigBase = parse.config.base;
- /* Configure card */
- link->state |= DEV_CONFIG;
-
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
while (1) {
- if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
- pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+ if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
+ pcmcia_parse_tuple(link, &tuple, &parse) != 0)
goto next_entry;
/* For New Media T&J, look for a SCSI window */
if (parse.cftable_entry.io.win[0].len >= 0x20)
@@ -201,15 +178,15 @@ static void aha152x_config_cs(dev_link_t *link)
if ((parse.cftable_entry.io.nwin > 0) &&
(link->io.BasePort1 < 0xffff)) {
link->conf.ConfigIndex = parse.cftable_entry.index;
- i = pcmcia_request_io(handle, &link->io);
+ i = pcmcia_request_io(link, &link->io);
if (i == CS_SUCCESS) break;
}
next_entry:
- CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
+ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
}
- CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
- CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
/* Set configuration options for the aha152x driver */
memset(&s, 0, sizeof(s));
@@ -231,53 +208,30 @@ static void aha152x_config_cs(dev_link_t *link)
}
sprintf(info->node.dev_name, "scsi%d", host->host_no);
- link->dev = &info->node;
+ link->dev_node = &info->node;
info->host = host;
- link->state &= ~DEV_CONFIG_PENDING;
- return;
-
+ return 0;
+
cs_failed:
- cs_error(link->handle, last_fn, last_ret);
+ cs_error(link, last_fn, last_ret);
aha152x_release_cs(link);
- return;
+ return -ENODEV;
}
-static void aha152x_release_cs(dev_link_t *link)
+static void aha152x_release_cs(struct pcmcia_device *link)
{
scsi_info_t *info = link->priv;
aha152x_release(info->host);
- link->dev = NULL;
-
- pcmcia_release_configuration(link->handle);
- pcmcia_release_io(link->handle, &link->io);
- pcmcia_release_irq(link->handle, &link->irq);
-
- link->state &= ~DEV_CONFIG;
+ pcmcia_disable_device(link);
}
-static int aha152x_suspend(struct pcmcia_device *dev)
+static int aha152x_resume(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(dev);
-
- link->state |= DEV_SUSPEND;
- if (link->state & DEV_CONFIG)
- pcmcia_release_configuration(link->handle);
-
- return 0;
-}
-
-static int aha152x_resume(struct pcmcia_device *dev)
-{
- dev_link_t *link = dev_to_instance(dev);
scsi_info_t *info = link->priv;
- link->state &= ~DEV_SUSPEND;
- if (link->state & DEV_CONFIG) {
- pcmcia_request_configuration(link->handle, &link->conf);
- aha152x_host_reset_host(info->host);
- }
+ aha152x_host_reset_host(info->host);
return 0;
}
@@ -297,10 +251,9 @@ static struct pcmcia_driver aha152x_cs_driver = {
.drv = {
.name = "aha152x_cs",
},
- .probe = aha152x_attach,
+ .probe = aha152x_probe,
.remove = aha152x_detach,
.id_table = aha152x_ids,
- .suspend = aha152x_suspend,
.resume = aha152x_resume,
};
@@ -317,4 +270,3 @@ static void __exit exit_aha152x_cs(void)
module_init(init_aha152x_cs);
module_exit(exit_aha152x_cs);
-
diff --git a/drivers/scsi/pcmcia/fdomain_stub.c b/drivers/scsi/pcmcia/fdomain_stub.c
index 788c58d805f..85f7ffac19a 100644
--- a/drivers/scsi/pcmcia/fdomain_stub.c
+++ b/drivers/scsi/pcmcia/fdomain_stub.c
@@ -73,57 +73,48 @@ static char *version =
/*====================================================================*/
typedef struct scsi_info_t {
- dev_link_t link;
+ struct pcmcia_device *p_dev;
dev_node_t node;
struct Scsi_Host *host;
} scsi_info_t;
-static void fdomain_release(dev_link_t *link);
+static void fdomain_release(struct pcmcia_device *link);
static void fdomain_detach(struct pcmcia_device *p_dev);
-static void fdomain_config(dev_link_t *link);
+static int fdomain_config(struct pcmcia_device *link);
-static int fdomain_attach(struct pcmcia_device *p_dev)
+static int fdomain_probe(struct pcmcia_device *link)
{
- scsi_info_t *info;
- dev_link_t *link;
-
- DEBUG(0, "fdomain_attach()\n");
-
- /* Create new SCSI device */
- info = kmalloc(sizeof(*info), GFP_KERNEL);
- if (!info) return -ENOMEM;
- memset(info, 0, sizeof(*info));
- link = &info->link; link->priv = info;
- link->io.NumPorts1 = 0x10;
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
- link->io.IOAddrLines = 10;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.IRQInfo1 = IRQ_LEVEL_ID;
- link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.Vcc = 50;
- link->conf.IntType = INT_MEMORY_AND_IO;
- link->conf.Present = PRESENT_OPTION;
-
- link->handle = p_dev;
- p_dev->instance = link;
-
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- fdomain_config(link);
-
- return 0;
+ scsi_info_t *info;
+
+ DEBUG(0, "fdomain_attach()\n");
+
+ /* Create new SCSI device */
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->p_dev = link;
+ link->priv = info;
+ link->io.NumPorts1 = 0x10;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+ link->io.IOAddrLines = 10;
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+ link->conf.Present = PRESENT_OPTION;
+
+ return fdomain_config(link);
} /* fdomain_attach */
/*====================================================================*/
-static void fdomain_detach(struct pcmcia_device *p_dev)
+static void fdomain_detach(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(p_dev);
-
DEBUG(0, "fdomain_detach(0x%p)\n", link);
- if (link->state & DEV_CONFIG)
- fdomain_release(link);
+ fdomain_release(link);
kfree(link->priv);
} /* fdomain_detach */
@@ -133,9 +124,8 @@ static void fdomain_detach(struct pcmcia_device *p_dev)
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
-static void fdomain_config(dev_link_t *link)
+static int fdomain_config(struct pcmcia_device *link)
{
- client_handle_t handle = link->handle;
scsi_info_t *info = link->priv;
tuple_t tuple;
cisparse_t parse;
@@ -150,103 +140,75 @@ static void fdomain_config(dev_link_t *link)
tuple.TupleData = tuple_data;
tuple.TupleDataMax = 64;
tuple.TupleOffset = 0;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
- CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
- CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
link->conf.ConfigBase = parse.config.base;
- /* Configure card */
- link->state |= DEV_CONFIG;
-
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
while (1) {
- if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
- pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+ if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
+ pcmcia_parse_tuple(link, &tuple, &parse) != 0)
goto next_entry;
link->conf.ConfigIndex = parse.cftable_entry.index;
link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
- i = pcmcia_request_io(handle, &link->io);
+ i = pcmcia_request_io(link, &link->io);
if (i == CS_SUCCESS) break;
next_entry:
- CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
+ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
}
- CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
- CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
-
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
+
/* A bad hack... */
release_region(link->io.BasePort1, link->io.NumPorts1);
/* Set configuration options for the fdomain driver */
sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
fdomain_setup(str);
-
+
host = __fdomain_16x0_detect(&fdomain_driver_template);
if (!host) {
printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
goto cs_failed;
}
-
- scsi_add_host(host, NULL); /* XXX handle failure */
+
+ if (scsi_add_host(host, NULL))
+ goto cs_failed;
scsi_scan_host(host);
sprintf(info->node.dev_name, "scsi%d", host->host_no);
- link->dev = &info->node;
+ link->dev_node = &info->node;
info->host = host;
-
- link->state &= ~DEV_CONFIG_PENDING;
- return;
-
+
+ return 0;
+
cs_failed:
- cs_error(link->handle, last_fn, last_ret);
+ cs_error(link, last_fn, last_ret);
fdomain_release(link);
- return;
-
+ return -ENODEV;
} /* fdomain_config */
/*====================================================================*/
-static void fdomain_release(dev_link_t *link)
+static void fdomain_release(struct pcmcia_device *link)
{
- scsi_info_t *info = link->priv;
+ scsi_info_t *info = link->priv;
- DEBUG(0, "fdomain_release(0x%p)\n", link);
+ DEBUG(0, "fdomain_release(0x%p)\n", link);
- scsi_remove_host(info->host);
- link->dev = NULL;
-
- pcmcia_release_configuration(link->handle);
- pcmcia_release_io(link->handle, &link->io);
- pcmcia_release_irq(link->handle, &link->irq);
-
- scsi_unregister(info->host);
-
- link->state &= ~DEV_CONFIG;
+ scsi_remove_host(info->host);
+ pcmcia_disable_device(link);
+ scsi_unregister(info->host);
}
/*====================================================================*/
-static int fdomain_suspend(struct pcmcia_device *dev)
+static int fdomain_resume(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(dev);
-
- link->state |= DEV_SUSPEND;
- if (link->state & DEV_CONFIG)
- pcmcia_release_configuration(link->handle);
-
- return 0;
-}
-
-static int fdomain_resume(struct pcmcia_device *dev)
-{
- dev_link_t *link = dev_to_instance(dev);
-
- link->state &= ~DEV_SUSPEND;
- if (link->state & DEV_CONFIG) {
- pcmcia_request_configuration(link->handle, &link->conf);
- fdomain_16x0_bus_reset(NULL);
- }
+ fdomain_16x0_bus_reset(NULL);
return 0;
}
@@ -264,10 +226,9 @@ static struct pcmcia_driver fdomain_cs_driver = {
.drv = {
.name = "fdomain_cs",
},
- .probe = fdomain_attach,
+ .probe = fdomain_probe,
.remove = fdomain_detach,
.id_table = fdomain_ids,
- .suspend = fdomain_suspend,
.resume = fdomain_resume,
};
diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index 9e3ab3fd535..231f9c311c6 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -1593,11 +1593,11 @@ static int nsp_eh_host_reset(Scsi_Cmnd *SCpnt)
configure the card at this point -- we wait until we receive a
card insertion event.
======================================================================*/
-static int nsp_cs_attach(struct pcmcia_device *p_dev)
+static int nsp_cs_probe(struct pcmcia_device *link)
{
scsi_info_t *info;
- dev_link_t *link;
nsp_hw_data *data = &nsp_data_base;
+ int ret;
nsp_dbg(NSP_DEBUG_INIT, "in");
@@ -1605,7 +1605,7 @@ static int nsp_cs_attach(struct pcmcia_device *p_dev)
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (info == NULL) { return -ENOMEM; }
memset(info, 0, sizeof(*info));
- link = &info->link;
+ info->p_dev = link;
link->priv = info;
data->ScsiInfo = info;
@@ -1627,18 +1627,13 @@ static int nsp_cs_attach(struct pcmcia_device *p_dev)
/* General socket configuration */
link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.Vcc = 50;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.Present = PRESENT_OPTION;
- link->handle = p_dev;
- p_dev->instance = link;
-
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- nsp_cs_config(link);
+ ret = nsp_cs_config(link);
nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link);
- return 0;
+ return ret;
} /* nsp_cs_attach */
@@ -1648,16 +1643,12 @@ static int nsp_cs_attach(struct pcmcia_device *p_dev)
structures are freed. Otherwise, the structures will be freed
when the device is released.
======================================================================*/
-static void nsp_cs_detach(struct pcmcia_device *p_dev)
+static void nsp_cs_detach(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(p_dev);
-
nsp_dbg(NSP_DEBUG_INIT, "in, link=0x%p", link);
- if (link->state & DEV_CONFIG) {
- ((scsi_info_t *)link->priv)->stop = 1;
- nsp_cs_release(link);
- }
+ ((scsi_info_t *)link->priv)->stop = 1;
+ nsp_cs_release(link);
kfree(link->priv);
link->priv = NULL;
@@ -1672,9 +1663,9 @@ static void nsp_cs_detach(struct pcmcia_device *p_dev)
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
/*====================================================================*/
-static void nsp_cs_config(dev_link_t *link)
+static int nsp_cs_config(struct pcmcia_device *link)
{
- client_handle_t handle = link->handle;
+ int ret;
scsi_info_t *info = link->priv;
tuple_t tuple;
cisparse_t parse;
@@ -1698,26 +1689,22 @@ static void nsp_cs_config(dev_link_t *link)
tuple.TupleData = tuple_data;
tuple.TupleDataMax = sizeof(tuple_data);
tuple.TupleOffset = 0;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
- CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
- CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
link->conf.ConfigBase = parse.config.base;
link->conf.Present = parse.config.rmask[0];
- /* Configure card */
- link->state |= DEV_CONFIG;
-
/* Look up the current Vcc */
- CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf));
- link->conf.Vcc = conf.Vcc;
+ CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link, &conf));
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
while (1) {
cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
- if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
- pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+ if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
+ pcmcia_parse_tuple(link, &tuple, &parse) != 0)
goto next_entry;
if (cfg->flags & CISTPL_CFTABLE_DEFAULT) { dflt = *cfg; }
@@ -1743,10 +1730,10 @@ static void nsp_cs_config(dev_link_t *link)
}
if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) {
- link->conf.Vpp1 = link->conf.Vpp2 =
+ link->conf.Vpp =
cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
} else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM)) {
- link->conf.Vpp1 = link->conf.Vpp2 =
+ link->conf.Vpp =
dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
}
@@ -1773,7 +1760,7 @@ static void nsp_cs_config(dev_link_t *link)
link->io.NumPorts2 = io->win[1].len;
}
/* This reserves IO space but doesn't actually enable it */
- if (pcmcia_request_io(link->handle, &link->io) != 0)
+ if (pcmcia_request_io(link, &link->io) != 0)
goto next_entry;
}
@@ -1788,7 +1775,7 @@ static void nsp_cs_config(dev_link_t *link)
req.Size = 0x1000;
}
req.AccessSpeed = 0;
- if (pcmcia_request_window(&link->handle, &req, &link->win) != 0)
+ if (pcmcia_request_window(&link, &req, &link->win) != 0)
goto next_entry;
map.Page = 0; map.CardOffset = mem->win[0].card_addr;
if (pcmcia_map_mem_page(link->win, &map) != 0)
@@ -1802,17 +1789,14 @@ static void nsp_cs_config(dev_link_t *link)
next_entry:
nsp_dbg(NSP_DEBUG_INIT, "next");
-
- if (link->io.NumPorts1) {
- pcmcia_release_io(link->handle, &link->io);
- }
- CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
+ pcmcia_disable_device(link);
+ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
}
if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
}
- CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
if (free_ports) {
if (link->io.BasePort1) {
@@ -1854,16 +1838,19 @@ static void nsp_cs_config(dev_link_t *link)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74))
- scsi_add_host (host, NULL);
+ ret = scsi_add_host (host, NULL);
+ if (ret)
+ goto cs_failed;
+
scsi_scan_host(host);
snprintf(info->node.dev_name, sizeof(info->node.dev_name), "scsi%d", host->host_no);
- link->dev = &info->node;
+ link->dev_node = &info->node;
info->host = host;
#else
nsp_dbg(NSP_DEBUG_INIT, "GET_SCSI_INFO");
- tail = &link->dev;
+ tail = &link->dev_node;
info->ndev = 0;
nsp_dbg(NSP_DEBUG_INIT, "host=0x%p", host);
@@ -1908,11 +1895,10 @@ static void nsp_cs_config(dev_link_t *link)
#endif
/* Finally, report what we've done */
- printk(KERN_INFO "nsp_cs: index 0x%02x: Vcc %d.%d",
- link->conf.ConfigIndex,
- link->conf.Vcc/10, link->conf.Vcc%10);
- if (link->conf.Vpp1) {
- printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10);
+ printk(KERN_INFO "nsp_cs: index 0x%02x: ",
+ link->conf.ConfigIndex);
+ if (link->conf.Vpp) {
+ printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
}
if (link->conf.Attributes & CONF_ENABLE_IRQ) {
printk(", irq %d", link->irq.AssignedIRQ);
@@ -1929,15 +1915,14 @@ static void nsp_cs_config(dev_link_t *link)
req.Base+req.Size-1);
printk("\n");
- link->state &= ~DEV_CONFIG_PENDING;
- return;
+ return 0;
cs_failed:
nsp_dbg(NSP_DEBUG_INIT, "config fail");
- cs_error(link->handle, last_fn, last_ret);
+ cs_error(link, last_fn, last_ret);
nsp_cs_release(link);
- return;
+ return -ENODEV;
} /* nsp_cs_config */
#undef CS_CHECK
@@ -1947,7 +1932,7 @@ static void nsp_cs_config(dev_link_t *link)
device, and release the PCMCIA configuration. If the device is
still open, this will be postponed until it is closed.
======================================================================*/
-static void nsp_cs_release(dev_link_t *link)
+static void nsp_cs_release(struct pcmcia_device *link)
{
scsi_info_t *info = link->priv;
nsp_hw_data *data = NULL;
@@ -1968,22 +1953,15 @@ static void nsp_cs_release(dev_link_t *link)
#else
scsi_unregister_host(&nsp_driver_template);
#endif
- link->dev = NULL;
+ link->dev_node = NULL;
if (link->win) {
if (data != NULL) {
iounmap((void *)(data->MmioAddress));
}
- pcmcia_release_window(link->win);
- }
- pcmcia_release_configuration(link->handle);
- if (link->io.NumPorts1) {
- pcmcia_release_io(link->handle, &link->io);
}
- if (link->irq.AssignedIRQ) {
- pcmcia_release_irq(link->handle, &link->irq);
- }
- link->state &= ~DEV_CONFIG;
+ pcmcia_disable_device(link);
+
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,2))
if (info->host != NULL) {
scsi_host_put(info->host);
@@ -1991,14 +1969,11 @@ static void nsp_cs_release(dev_link_t *link)
#endif
} /* nsp_cs_release */
-static int nsp_cs_suspend(struct pcmcia_device *dev)
+static int nsp_cs_suspend(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(dev);
scsi_info_t *info = link->priv;
nsp_hw_data *data;
- link->state |= DEV_SUSPEND;
-
nsp_dbg(NSP_DEBUG_INIT, "event: suspend");
if (info->host != NULL) {
@@ -2011,25 +1986,16 @@ static int nsp_cs_suspend(struct pcmcia_device *dev)
info->stop = 1;
- if (link->state & DEV_CONFIG)
- pcmcia_release_configuration(link->handle);
-
return 0;
}
-static int nsp_cs_resume(struct pcmcia_device *dev)
+static int nsp_cs_resume(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(dev);
scsi_info_t *info = link->priv;
nsp_hw_data *data;
nsp_dbg(NSP_DEBUG_INIT, "event: resume");
- link->state &= ~DEV_SUSPEND;
-
- if (link->state & DEV_CONFIG)
- pcmcia_request_configuration(link->handle, &link->conf);
-
info->stop = 0;
if (info->host != NULL) {
@@ -2065,7 +2031,7 @@ static struct pcmcia_driver nsp_driver = {
.drv = {
.name = "nsp_cs",
},
- .probe = nsp_cs_attach,
+ .probe = nsp_cs_probe,
.remove = nsp_cs_detach,
.id_table = nsp_cs_ids,
.suspend = nsp_cs_suspend,
@@ -2098,19 +2064,7 @@ static int __init nsp_cs_init(void)
static void __exit nsp_cs_exit(void)
{
nsp_msg(KERN_INFO, "unloading...");
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,68))
pcmcia_unregister_driver(&nsp_driver);
-#else
- unregister_pcmcia_driver(&dev_info);
- /* XXX: this really needs to move into generic code.. */
- while (dev_list != NULL) {
- if (dev_list->state & DEV_CONFIG) {
- nsp_cs_release(dev_list);
- }
- nsp_cs_detach(dev_list);
- }
-#endif
}
diff --git a/drivers/scsi/pcmcia/nsp_cs.h b/drivers/scsi/pcmcia/nsp_cs.h
index b66b140a745..8908b8e5b78 100644
--- a/drivers/scsi/pcmcia/nsp_cs.h
+++ b/drivers/scsi/pcmcia/nsp_cs.h
@@ -225,7 +225,7 @@
/*====================================================================*/
typedef struct scsi_info_t {
- dev_link_t link;
+ struct pcmcia_device *p_dev;
struct Scsi_Host *host;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,74))
dev_node_t node;
@@ -297,8 +297,8 @@ typedef struct _nsp_hw_data {
/* Card service functions */
static void nsp_cs_detach (struct pcmcia_device *p_dev);
-static void nsp_cs_release(dev_link_t *link);
-static void nsp_cs_config (dev_link_t *link);
+static void nsp_cs_release(struct pcmcia_device *link);
+static int nsp_cs_config (struct pcmcia_device *link);
/* Linux SCSI subsystem specific functions */
static struct Scsi_Host *nsp_detect (struct scsi_host_template *sht);
@@ -450,7 +450,7 @@ static inline struct Scsi_Host *scsi_host_hn_get(unsigned short hostno)
return host;
}
-static void cs_error(client_handle_t handle, int func, int ret)
+static void cs_error(struct pcmcia_device *handle, int func, int ret)
{
error_info_t err = { func, ret };
pcmcia_report_error(handle, &err);
diff --git a/drivers/scsi/pcmcia/qlogic_stub.c b/drivers/scsi/pcmcia/qlogic_stub.c
index dce7e687fd4..86c2ac6ae62 100644
--- a/drivers/scsi/pcmcia/qlogic_stub.c
+++ b/drivers/scsi/pcmcia/qlogic_stub.c
@@ -91,18 +91,18 @@ static struct scsi_host_template qlogicfas_driver_template = {
/*====================================================================*/
typedef struct scsi_info_t {
- dev_link_t link;
+ struct pcmcia_device *p_dev;
dev_node_t node;
struct Scsi_Host *host;
unsigned short manf_id;
} scsi_info_t;
-static void qlogic_release(dev_link_t *link);
+static void qlogic_release(struct pcmcia_device *link);
static void qlogic_detach(struct pcmcia_device *p_dev);
-static void qlogic_config(dev_link_t * link);
+static int qlogic_config(struct pcmcia_device * link);
static struct Scsi_Host *qlogic_detect(struct scsi_host_template *host,
- dev_link_t *link, int qbase, int qlirq)
+ struct pcmcia_device *link, int qbase, int qlirq)
{
int qltyp; /* type of chip */
int qinitid;
@@ -156,10 +156,9 @@ free_scsi_host:
err:
return NULL;
}
-static int qlogic_attach(struct pcmcia_device *p_dev)
+static int qlogic_probe(struct pcmcia_device *link)
{
scsi_info_t *info;
- dev_link_t *link;
DEBUG(0, "qlogic_attach()\n");
@@ -168,7 +167,7 @@ static int qlogic_attach(struct pcmcia_device *p_dev)
if (!info)
return -ENOMEM;
memset(info, 0, sizeof(*info));
- link = &info->link;
+ info->p_dev = link;
link->priv = info;
link->io.NumPorts1 = 16;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
@@ -176,30 +175,19 @@ static int qlogic_attach(struct pcmcia_device *p_dev)
link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.Vcc = 50;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.Present = PRESENT_OPTION;
- link->handle = p_dev;
- p_dev->instance = link;
-
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- qlogic_config(link);
-
- return 0;
+ return qlogic_config(link);
} /* qlogic_attach */
/*====================================================================*/
-static void qlogic_detach(struct pcmcia_device *p_dev)
+static void qlogic_detach(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(p_dev);
-
DEBUG(0, "qlogic_detach(0x%p)\n", link);
- if (link->state & DEV_CONFIG)
- qlogic_release(link);
-
+ qlogic_release(link);
kfree(link->priv);
} /* qlogic_detach */
@@ -209,9 +197,8 @@ static void qlogic_detach(struct pcmcia_device *p_dev)
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
-static void qlogic_config(dev_link_t * link)
+static int qlogic_config(struct pcmcia_device * link)
{
- client_handle_t handle = link->handle;
scsi_info_t *info = link->priv;
tuple_t tuple;
cisparse_t parse;
@@ -225,38 +212,35 @@ static void qlogic_config(dev_link_t * link)
tuple.TupleDataMax = 64;
tuple.TupleOffset = 0;
tuple.DesiredTuple = CISTPL_CONFIG;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
- CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
- CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
link->conf.ConfigBase = parse.config.base;
tuple.DesiredTuple = CISTPL_MANFID;
- if ((pcmcia_get_first_tuple(handle, &tuple) == CS_SUCCESS) && (pcmcia_get_tuple_data(handle, &tuple) == CS_SUCCESS))
+ if ((pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS) && (pcmcia_get_tuple_data(link, &tuple) == CS_SUCCESS))
info->manf_id = le16_to_cpu(tuple.TupleData[0]);
- /* Configure card */
- link->state |= DEV_CONFIG;
-
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
while (1) {
- if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
- pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+ if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
+ pcmcia_parse_tuple(link, &tuple, &parse) != 0)
goto next_entry;
link->conf.ConfigIndex = parse.cftable_entry.index;
link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
if (link->io.BasePort1 != 0) {
- i = pcmcia_request_io(handle, &link->io);
+ i = pcmcia_request_io(link, &link->io);
if (i == CS_SUCCESS)
break;
}
next_entry:
- CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
+ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
}
- CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
- CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
if ((info->manf_id == MANFID_MACNICA) || (info->manf_id == MANFID_PIONEER) || (info->manf_id == 0x0098)) {
/* set ATAcmd */
@@ -275,82 +259,54 @@ static void qlogic_config(dev_link_t * link)
if (!host) {
printk(KERN_INFO "%s: no SCSI devices found\n", qlogic_name);
- goto out;
+ goto cs_failed;
}
sprintf(info->node.dev_name, "scsi%d", host->host_no);
- link->dev = &info->node;
+ link->dev_node = &info->node;
info->host = host;
-out:
- link->state &= ~DEV_CONFIG_PENDING;
- return;
+ return 0;
cs_failed:
- cs_error(link->handle, last_fn, last_ret);
- link->dev = NULL;
- pcmcia_release_configuration(link->handle);
- pcmcia_release_io(link->handle, &link->io);
- pcmcia_release_irq(link->handle, &link->irq);
- link->state &= ~DEV_CONFIG;
- return;
+ cs_error(link, last_fn, last_ret);
+ pcmcia_disable_device(link);
+ return -ENODEV;
} /* qlogic_config */
/*====================================================================*/
-static void qlogic_release(dev_link_t *link)
+static void qlogic_release(struct pcmcia_device *link)
{
scsi_info_t *info = link->priv;
DEBUG(0, "qlogic_release(0x%p)\n", link);
scsi_remove_host(info->host);
- link->dev = NULL;
free_irq(link->irq.AssignedIRQ, info->host);
-
- pcmcia_release_configuration(link->handle);
- pcmcia_release_io(link->handle, &link->io);
- pcmcia_release_irq(link->handle, &link->irq);
+ pcmcia_disable_device(link);
scsi_host_put(info->host);
-
- link->state &= ~DEV_CONFIG;
}
/*====================================================================*/
-static int qlogic_suspend(struct pcmcia_device *dev)
+static int qlogic_resume(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(dev);
-
- link->state |= DEV_SUSPEND;
- if (link->state & DEV_CONFIG)
- pcmcia_release_configuration(link->handle);
-
- return 0;
-}
+ scsi_info_t *info = link->priv;
-static int qlogic_resume(struct pcmcia_device *dev)
-{
- dev_link_t *link = dev_to_instance(dev);
-
- link->state &= ~DEV_SUSPEND;
- if (link->state & DEV_CONFIG) {
- scsi_info_t *info = link->priv;
-
- pcmcia_request_configuration(link->handle, &link->conf);
- if ((info->manf_id == MANFID_MACNICA) ||
- (info->manf_id == MANFID_PIONEER) ||
- (info->manf_id == 0x0098)) {
- outb(0x80, link->io.BasePort1 + 0xd);
- outb(0x24, link->io.BasePort1 + 0x9);
- outb(0x04, link->io.BasePort1 + 0xd);
- }
- /* Ugggglllyyyy!!! */
- qlogicfas408_bus_reset(NULL);
+ pcmcia_request_configuration(link, &link->conf);
+ if ((info->manf_id == MANFID_MACNICA) ||
+ (info->manf_id == MANFID_PIONEER) ||
+ (info->manf_id == 0x0098)) {
+ outb(0x80, link->io.BasePort1 + 0xd);
+ outb(0x24, link->io.BasePort1 + 0x9);
+ outb(0x04, link->io.BasePort1 + 0xd);
}
+ /* Ugggglllyyyy!!! */
+ qlogicfas408_bus_reset(NULL);
return 0;
}
@@ -382,10 +338,9 @@ static struct pcmcia_driver qlogic_cs_driver = {
.drv = {
.name = "qlogic_cs",
},
- .probe = qlogic_attach,
+ .probe = qlogic_probe,
.remove = qlogic_detach,
.id_table = qlogic_ids,
- .suspend = qlogic_suspend,
.resume = qlogic_resume,
};
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index 3a4dd6f5b81..9f59827707f 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -202,7 +202,7 @@ static char *version =
/* ================================================================== */
struct scsi_info_t {
- dev_link_t link;
+ struct pcmcia_device *p_dev;
dev_node_t node;
struct Scsi_Host *host;
unsigned short manf_id;
@@ -527,7 +527,7 @@ idle_out:
}
static void
-SYM53C500_release(dev_link_t *link)
+SYM53C500_release(struct pcmcia_device *link)
{
struct scsi_info_t *info = link->priv;
struct Scsi_Host *shost = info->host;
@@ -550,13 +550,7 @@ SYM53C500_release(dev_link_t *link)
if (shost->io_port && shost->n_io_port)
release_region(shost->io_port, shost->n_io_port);
- link->dev = NULL;
-
- pcmcia_release_configuration(link->handle);
- pcmcia_release_io(link->handle, &link->io);
- pcmcia_release_irq(link->handle, &link->irq);
-
- link->state &= ~DEV_CONFIG;
+ pcmcia_disable_device(link);
scsi_host_put(shost);
} /* SYM53C500_release */
@@ -713,10 +707,9 @@ static struct scsi_host_template sym53c500_driver_template = {
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
-static void
-SYM53C500_config(dev_link_t *link)
+static int
+SYM53C500_config(struct pcmcia_device *link)
{
- client_handle_t handle = link->handle;
struct scsi_info_t *info = link->priv;
tuple_t tuple;
cisparse_t parse;
@@ -733,40 +726,37 @@ SYM53C500_config(dev_link_t *link)
tuple.TupleDataMax = 64;
tuple.TupleOffset = 0;
tuple.DesiredTuple = CISTPL_CONFIG;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
- CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
- CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
link->conf.ConfigBase = parse.config.base;
tuple.DesiredTuple = CISTPL_MANFID;
- if ((pcmcia_get_first_tuple(handle, &tuple) == CS_SUCCESS) &&
- (pcmcia_get_tuple_data(handle, &tuple) == CS_SUCCESS))
+ if ((pcmcia_get_first_tuple(link, &tuple) == CS_SUCCESS) &&
+ (pcmcia_get_tuple_data(link, &tuple) == CS_SUCCESS))
info->manf_id = le16_to_cpu(tuple.TupleData[0]);
- /* Configure card */
- link->state |= DEV_CONFIG;
-
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
while (1) {
- if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
- pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+ if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
+ pcmcia_parse_tuple(link, &tuple, &parse) != 0)
goto next_entry;
link->conf.ConfigIndex = parse.cftable_entry.index;
link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
if (link->io.BasePort1 != 0) {
- i = pcmcia_request_io(handle, &link->io);
+ i = pcmcia_request_io(link, &link->io);
if (i == CS_SUCCESS)
break;
}
next_entry:
- CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
+ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
}
- CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
- CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
/*
* That's the trouble with copying liberally from another driver.
@@ -835,7 +825,7 @@ next_entry:
data->fast_pio = USE_FAST_PIO;
sprintf(info->node.dev_name, "scsi%d", host->host_no);
- link->dev = &info->node;
+ link->dev_node = &info->node;
info->host = host;
if (scsi_add_host(host, NULL))
@@ -843,7 +833,7 @@ next_entry:
scsi_scan_host(host);
- goto out; /* SUCCESS */
+ return 0;
err_free_irq:
free_irq(irq_level, host);
@@ -852,74 +842,50 @@ err_free_scsi:
err_release:
release_region(port_base, 0x10);
printk(KERN_INFO "sym53c500_cs: no SCSI devices found\n");
-
-out:
- link->state &= ~DEV_CONFIG_PENDING;
- return;
+ return -ENODEV;
cs_failed:
- cs_error(link->handle, last_fn, last_ret);
+ cs_error(link, last_fn, last_ret);
SYM53C500_release(link);
- return;
+ return -ENODEV;
} /* SYM53C500_config */
-static int sym53c500_suspend(struct pcmcia_device *dev)
-{
- dev_link_t *link = dev_to_instance(dev);
-
- link->state |= DEV_SUSPEND;
- if (link->state & DEV_CONFIG)
- pcmcia_release_configuration(link->handle);
-
- return 0;
-}
-
-static int sym53c500_resume(struct pcmcia_device *dev)
+static int sym53c500_resume(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(dev);
struct scsi_info_t *info = link->priv;
- link->state &= ~DEV_SUSPEND;
- if (link->state & DEV_CONFIG) {
- pcmcia_request_configuration(link->handle, &link->conf);
-
- /* See earlier comment about manufacturer IDs. */
- if ((info->manf_id == MANFID_MACNICA) ||
- (info->manf_id == MANFID_PIONEER) ||
- (info->manf_id == 0x0098)) {
- outb(0x80, link->io.BasePort1 + 0xd);
- outb(0x24, link->io.BasePort1 + 0x9);
- outb(0x04, link->io.BasePort1 + 0xd);
- }
- /*
- * If things don't work after a "resume",
- * this is a good place to start looking.
- */
- SYM53C500_int_host_reset(link->io.BasePort1);
+ /* See earlier comment about manufacturer IDs. */
+ if ((info->manf_id == MANFID_MACNICA) ||
+ (info->manf_id == MANFID_PIONEER) ||
+ (info->manf_id == 0x0098)) {
+ outb(0x80, link->io.BasePort1 + 0xd);
+ outb(0x24, link->io.BasePort1 + 0x9);
+ outb(0x04, link->io.BasePort1 + 0xd);
}
+ /*
+ * If things don't work after a "resume",
+ * this is a good place to start looking.
+ */
+ SYM53C500_int_host_reset(link->io.BasePort1);
return 0;
}
static void
-SYM53C500_detach(struct pcmcia_device *p_dev)
+SYM53C500_detach(struct pcmcia_device *link)
{
- dev_link_t *link = dev_to_instance(p_dev);
-
DEBUG(0, "SYM53C500_detach(0x%p)\n", link);
- if (link->state & DEV_CONFIG)
- SYM53C500_release(link);
+ SYM53C500_release(link);
kfree(link->priv);
link->priv = NULL;
} /* SYM53C500_detach */
static int
-SYM53C500_attach(struct pcmcia_device *p_dev)
+SYM53C500_probe(struct pcmcia_device *link)
{
struct scsi_info_t *info;
- dev_link_t *link;
DEBUG(0, "SYM53C500_attach()\n");
@@ -928,7 +894,7 @@ SYM53C500_attach(struct pcmcia_device *p_dev)
if (!info)
return -ENOMEM;
memset(info, 0, sizeof(*info));
- link = &info->link;
+ info->p_dev = link;
link->priv = info;
link->io.NumPorts1 = 16;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
@@ -936,17 +902,10 @@ SYM53C500_attach(struct pcmcia_device *p_dev)
link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.Vcc = 50;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.Present = PRESENT_OPTION;
- link->handle = p_dev;
- p_dev->instance = link;
-
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- SYM53C500_config(link);
-
- return 0;
+ return SYM53C500_config(link);
} /* SYM53C500_attach */
MODULE_AUTHOR("Bob Tracy <rct@frus.com>");
@@ -966,10 +925,9 @@ static struct pcmcia_driver sym53c500_cs_driver = {
.drv = {
.name = "sym53c500_cs",
},
- .probe = SYM53C500_attach,
+ .probe = SYM53C500_probe,
.remove = SYM53C500_detach,
.id_table = sym53c500_ids,
- .suspend = sym53c500_suspend,
.resume = sym53c500_resume,
};
diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c
index 3c85c4b66e1..b9a3c566f83 100644
--- a/drivers/scsi/pdc_adma.c
+++ b/drivers/scsi/pdc_adma.c
@@ -46,7 +46,7 @@
#include <linux/libata.h>
#define DRV_NAME "pdc_adma"
-#define DRV_VERSION "0.03"
+#define DRV_VERSION "0.04"
/* macro to calculate base address for ATA regs */
#define ADMA_ATA_REGS(base,port_no) ((base) + ((port_no) * 0x40))
@@ -143,7 +143,6 @@ static struct scsi_host_template adma_ata_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
@@ -456,7 +455,7 @@ static inline unsigned int adma_intr_pkt(struct ata_host_set *host_set)
continue;
handled = 1;
adma_enter_reg_mode(ap);
- if (ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))
+ if (ap->flags & (ATA_FLAG_DISABLED | ATA_FLAG_NOINTR))
continue;
pp = ap->private_data;
if (!pp || pp->state != adma_state_pkt)
@@ -481,7 +480,7 @@ static inline unsigned int adma_intr_mmio(struct ata_host_set *host_set)
for (port_no = 0; port_no < host_set->n_ports; ++port_no) {
struct ata_port *ap;
ap = host_set->ports[port_no];
- if (ap && (!(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR)))) {
+ if (ap && (!(ap->flags & (ATA_FLAG_DISABLED | ATA_FLAG_NOINTR)))) {
struct ata_queued_cmd *qc;
struct adma_port_priv *pp = ap->private_data;
if (!pp || pp->state != adma_state_mmio)
diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c
index fa901fd6508..4aabc759fce 100644
--- a/drivers/scsi/sata_mv.c
+++ b/drivers/scsi/sata_mv.c
@@ -378,7 +378,6 @@ static struct scsi_host_template mv_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = MV_USE_Q_DEPTH,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = MV_MAX_SG_CT / 2,
@@ -1397,7 +1396,7 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
}
}
- if (ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))
+ if (ap->flags & (ATA_FLAG_DISABLED | ATA_FLAG_NOINTR))
continue;
err_mask = ac_err_mask(ata_status);
@@ -1991,7 +1990,7 @@ comreset_retry:
tf.nsect = readb((void __iomem *) ap->ioaddr.nsect_addr);
dev->class = ata_dev_classify(&tf);
- if (!ata_dev_present(dev)) {
+ if (!ata_dev_enabled(dev)) {
VPRINTK("Port disabled post-sig: No device present.\n");
ata_port_disable(ap);
}
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index f77bf183dfa..3a70875be8b 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -44,7 +44,7 @@
#include <linux/libata.h>
#define DRV_NAME "sata_nv"
-#define DRV_VERSION "0.8"
+#define DRV_VERSION "0.9"
enum {
NV_PORTS = 2,
@@ -201,7 +201,6 @@ static struct scsi_host_template nv_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
@@ -280,7 +279,7 @@ static irqreturn_t nv_interrupt (int irq, void *dev_instance,
ap = host_set->ports[i];
if (ap &&
- !(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))) {
+ !(ap->flags & (ATA_FLAG_DISABLED | ATA_FLAG_NOINTR))) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index cc928c68a47..ddbc0c6dd9f 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -111,7 +111,6 @@ static struct scsi_host_template pdc_ata_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
@@ -534,7 +533,7 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *r
ap = host_set->ports[i];
tmp = mask & (1 << (i + 1));
if (tmp && ap &&
- !(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))) {
+ !(ap->flags & (ATA_FLAG_DISABLED | ATA_FLAG_NOINTR))) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
@@ -677,10 +676,6 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
- /*
- * If this driver happens to only be useful on Apple's K2, then
- * we should check that here as it has a normal Serverworks ID
- */
rc = pci_enable_device(pdev);
if (rc)
return rc;
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index 9ffe1ef0d20..259c2dec4e2 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -41,7 +41,7 @@
#include <linux/libata.h>
#define DRV_NAME "sata_qstor"
-#define DRV_VERSION "0.05"
+#define DRV_VERSION "0.06"
enum {
QS_PORTS = 4,
@@ -132,7 +132,6 @@ static struct scsi_host_template qs_ata_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = QS_MAX_PRD,
@@ -396,7 +395,7 @@ static inline unsigned int qs_intr_pkt(struct ata_host_set *host_set)
sff1, sff0, port_no, sHST, sDST);
handled = 1;
if (ap && !(ap->flags &
- (ATA_FLAG_PORT_DISABLED|ATA_FLAG_NOINTR))) {
+ (ATA_FLAG_DISABLED|ATA_FLAG_NOINTR))) {
struct ata_queued_cmd *qc;
struct qs_port_priv *pp = ap->private_data;
if (!pp || pp->state != qs_state_pkt)
@@ -429,7 +428,7 @@ static inline unsigned int qs_intr_mmio(struct ata_host_set *host_set)
struct ata_port *ap;
ap = host_set->ports[port_no];
if (ap &&
- !(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))) {
+ !(ap->flags & (ATA_FLAG_DISABLED | ATA_FLAG_NOINTR))) {
struct ata_queued_cmd *qc;
struct qs_port_priv *pp = ap->private_data;
if (!pp || pp->state != qs_state_mmio)
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index 18c296c5689..c9333577330 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -46,7 +46,7 @@
#include <linux/libata.h>
#define DRV_NAME "sata_sil"
-#define DRV_VERSION "0.9"
+#define DRV_VERSION "1.0"
enum {
/*
@@ -146,7 +146,6 @@ static struct scsi_host_template sil_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
@@ -264,7 +263,7 @@ static void sil_post_set_mode (struct ata_port *ap)
for (i = 0; i < 2; i++) {
dev = &ap->device[i];
- if (!ata_dev_present(dev))
+ if (!ata_dev_enabled(dev))
dev_mode[i] = 0; /* PIO0/1/2 */
else if (dev->flags & ATA_DFLAG_PIO)
dev_mode[i] = 1; /* PIO3/4 */
@@ -391,10 +390,6 @@ static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
- /*
- * If this driver happens to only be useful on Apple's K2, then
- * we should check that here as it has a normal Serverworks ID
- */
rc = pci_enable_device(pdev);
if (rc)
return rc;
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 068c98a4111..e9fd869140c 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -31,7 +31,7 @@
#include <asm/io.h>
#define DRV_NAME "sata_sil24"
-#define DRV_VERSION "0.23"
+#define DRV_VERSION "0.24"
/*
* Port request block (PRB) 32 bytes
@@ -86,6 +86,13 @@ enum {
/* HOST_SLOT_STAT bits */
HOST_SSTAT_ATTN = (1 << 31),
+ /* HOST_CTRL bits */
+ HOST_CTRL_M66EN = (1 << 16), /* M66EN PCI bus signal */
+ HOST_CTRL_TRDY = (1 << 17), /* latched PCI TRDY */
+ HOST_CTRL_STOP = (1 << 18), /* latched PCI STOP */
+ HOST_CTRL_DEVSEL = (1 << 19), /* latched PCI DEVSEL */
+ HOST_CTRL_REQ64 = (1 << 20), /* latched PCI REQ64 */
+
/*
* Port registers
* (8192 bytes @ +0x0000, +0x2000, +0x4000 and +0x6000 @ BAR2)
@@ -142,8 +149,12 @@ enum {
PORT_IRQ_PWR_CHG = (1 << 3), /* power management change */
PORT_IRQ_PHYRDY_CHG = (1 << 4), /* PHY ready change */
PORT_IRQ_COMWAKE = (1 << 5), /* COMWAKE received */
- PORT_IRQ_UNK_FIS = (1 << 6), /* Unknown FIS received */
- PORT_IRQ_SDB_FIS = (1 << 11), /* SDB FIS received */
+ PORT_IRQ_UNK_FIS = (1 << 6), /* unknown FIS received */
+ PORT_IRQ_DEV_XCHG = (1 << 7), /* device exchanged */
+ PORT_IRQ_8B10B = (1 << 8), /* 8b/10b decode error threshold */
+ PORT_IRQ_CRC = (1 << 9), /* CRC error threshold */
+ PORT_IRQ_HANDSHAKE = (1 << 10), /* handshake error threshold */
+ PORT_IRQ_SDB_NOTIFY = (1 << 11), /* SDB notify received */
/* bits[27:16] are unmasked (raw) */
PORT_IRQ_RAW_SHIFT = 16,
@@ -174,7 +185,7 @@ enum {
PORT_CERR_CMD_PCIPERR = 27, /* ctrl[15:13] 110 - PCI parity err while fetching PRB */
PORT_CERR_XFR_UNDEF = 32, /* PSD ecode 00 - undefined */
PORT_CERR_XFR_TGTABRT = 33, /* PSD ecode 01 - target abort */
- PORT_CERR_XFR_MSGABRT = 34, /* PSD ecode 10 - master abort */
+ PORT_CERR_XFR_MSTABRT = 34, /* PSD ecode 10 - master abort */
PORT_CERR_XFR_PCIPERR = 35, /* PSD ecode 11 - PCI prity err during transfer */
PORT_CERR_SENDSERVICE = 36, /* FIS received while sending service */
@@ -207,6 +218,11 @@ enum {
BID_SIL3132 = 1,
BID_SIL3131 = 2,
+ /* host flags */
+ SIL24_COMMON_FLAGS = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+ ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
+ SIL24_FLAG_PCIX_IRQ_WOC = (1 << 24), /* IRQ loss errata on PCI-X */
+
IRQ_STAT_4PORTS = 0xf,
};
@@ -281,7 +297,6 @@ static struct scsi_host_template sil24_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
@@ -334,9 +349,8 @@ static struct ata_port_info sil24_port_info[] = {
/* sil_3124 */
{
.sht = &sil24_sht,
- .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
- ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
- SIL24_NPORTS2FLAG(4),
+ .host_flags = SIL24_COMMON_FLAGS | SIL24_NPORTS2FLAG(4) |
+ SIL24_FLAG_PCIX_IRQ_WOC,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x3f, /* udma0-5 */
@@ -345,9 +359,7 @@ static struct ata_port_info sil24_port_info[] = {
/* sil_3132 */
{
.sht = &sil24_sht,
- .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
- ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
- SIL24_NPORTS2FLAG(2),
+ .host_flags = SIL24_COMMON_FLAGS | SIL24_NPORTS2FLAG(2),
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x3f, /* udma0-5 */
@@ -356,9 +368,7 @@ static struct ata_port_info sil24_port_info[] = {
/* sil_3131/sil_3531 */
{
.sht = &sil24_sht,
- .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
- ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
- SIL24_NPORTS2FLAG(1),
+ .host_flags = SIL24_COMMON_FLAGS | SIL24_NPORTS2FLAG(1),
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x3f, /* udma0-5 */
@@ -427,15 +437,30 @@ static void sil24_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
*tf = pp->tf;
}
-static int sil24_softreset(struct ata_port *ap, int verbose,
- unsigned int *class)
+static int sil24_init_port(struct ata_port *ap)
+{
+ void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
+ u32 tmp;
+
+ writel(PORT_CS_INIT, port + PORT_CTRL_STAT);
+ ata_wait_register(port + PORT_CTRL_STAT,
+ PORT_CS_INIT, PORT_CS_INIT, 10, 100);
+ tmp = ata_wait_register(port + PORT_CTRL_STAT,
+ PORT_CS_RDY, 0, 10, 100);
+
+ if ((tmp & (PORT_CS_INIT | PORT_CS_RDY)) != PORT_CS_RDY)
+ return -EIO;
+ return 0;
+}
+
+static int sil24_softreset(struct ata_port *ap, unsigned int *class)
{
void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
struct sil24_port_priv *pp = ap->private_data;
struct sil24_prb *prb = &pp->cmd_block[0].ata.prb;
dma_addr_t paddr = pp->cmd_block_dma;
- unsigned long timeout = jiffies + ATA_TMOUT_BOOT * HZ;
- u32 irq_enable, irq_stat;
+ u32 mask, irq_enable, irq_stat;
+ const char *reason;
DPRINTK("ENTER\n");
@@ -449,34 +474,35 @@ static int sil24_softreset(struct ata_port *ap, int verbose,
irq_enable = readl(port + PORT_IRQ_ENABLE_SET);
writel(irq_enable, port + PORT_IRQ_ENABLE_CLR);
- /*
- * XXX: Not sure whether the following sleep is needed or not.
- * The original driver had it. So....
- */
- msleep(10);
+ /* put the port into known state */
+ if (sil24_init_port(ap)) {
+ reason ="port not ready";
+ goto err;
+ }
- prb->ctrl = PRB_CTRL_SRST;
+ /* do SRST */
+ prb->ctrl = cpu_to_le16(PRB_CTRL_SRST);
prb->fis[1] = 0; /* no PM yet */
writel((u32)paddr, port + PORT_CMD_ACTIVATE);
+ writel((u64)paddr >> 32, port + PORT_CMD_ACTIVATE + 4);
- do {
- irq_stat = readl(port + PORT_IRQ_STAT);
- writel(irq_stat, port + PORT_IRQ_STAT); /* clear irq */
-
- irq_stat >>= PORT_IRQ_RAW_SHIFT;
- if (irq_stat & (PORT_IRQ_COMPLETE | PORT_IRQ_ERROR))
- break;
+ mask = (PORT_IRQ_COMPLETE | PORT_IRQ_ERROR) << PORT_IRQ_RAW_SHIFT;
+ irq_stat = ata_wait_register(port + PORT_IRQ_STAT, mask, 0x0,
+ 100, ATA_TMOUT_BOOT / HZ * 1000);
- msleep(100);
- } while (time_before(jiffies, timeout));
+ writel(irq_stat, port + PORT_IRQ_STAT); /* clear IRQs */
+ irq_stat >>= PORT_IRQ_RAW_SHIFT;
/* restore IRQs */
writel(irq_enable, port + PORT_IRQ_ENABLE_SET);
if (!(irq_stat & PORT_IRQ_COMPLETE)) {
- DPRINTK("EXIT, srst failed\n");
- return -EIO;
+ if (irq_stat & PORT_IRQ_ERROR)
+ reason = "SRST command error";
+ else
+ reason = "timeout";
+ goto err;
}
sil24_update_tf(ap);
@@ -488,15 +514,55 @@ static int sil24_softreset(struct ata_port *ap, int verbose,
out:
DPRINTK("EXIT, class=%u\n", *class);
return 0;
+
+ err:
+ printk(KERN_ERR "ata%u: softreset failed (%s)\n", ap->id, reason);
+ return -EIO;
}
-static int sil24_hardreset(struct ata_port *ap, int verbose,
- unsigned int *class)
+static int sil24_hardreset(struct ata_port *ap, unsigned int *class)
{
- unsigned int dummy_class;
+ void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
+ const char *reason;
+ int tout_msec;
+ u32 tmp;
+
+ /* sil24 does the right thing(tm) without any protection */
+ ata_set_sata_spd(ap);
+
+ tout_msec = 100;
+ if (sata_dev_present(ap))
+ tout_msec = 5000;
- /* sil24 doesn't report device signature after hard reset */
- return sata_std_hardreset(ap, verbose, &dummy_class);
+ writel(PORT_CS_DEV_RST, port + PORT_CTRL_STAT);
+ tmp = ata_wait_register(port + PORT_CTRL_STAT,
+ PORT_CS_DEV_RST, PORT_CS_DEV_RST, 10, tout_msec);
+
+ /* SStatus oscillates between zero and valid status for short
+ * duration after DEV_RST, give it time to settle.
+ */
+ msleep(100);
+
+ if (tmp & PORT_CS_DEV_RST) {
+ if (!sata_dev_present(ap))
+ return 0;
+ reason = "link not ready";
+ goto err;
+ }
+
+ if (ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT)) {
+ reason = "device not ready";
+ goto err;
+ }
+
+ /* sil24 doesn't report device class code after hardreset,
+ * leave *class alone.
+ */
+ return 0;
+
+ err:
+ printk(KERN_ERR "ata%u: hardreset failed (%s)\n", ap->id, reason);
+ return -EIO;
}
static int sil24_probe_reset(struct ata_port *ap, unsigned int *classes)
@@ -532,6 +598,7 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
union sil24_cmd_block *cb = pp->cmd_block + qc->tag;
struct sil24_prb *prb;
struct sil24_sge *sge;
+ u16 ctrl = 0;
switch (qc->tf.protocol) {
case ATA_PROT_PIO:
@@ -539,7 +606,6 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
case ATA_PROT_NODATA:
prb = &cb->ata.prb;
sge = cb->ata.sge;
- prb->ctrl = 0;
break;
case ATA_PROT_ATAPI:
@@ -552,12 +618,10 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
if (qc->tf.protocol != ATA_PROT_ATAPI_NODATA) {
if (qc->tf.flags & ATA_TFLAG_WRITE)
- prb->ctrl = PRB_CTRL_PACKET_WRITE;
+ ctrl = PRB_CTRL_PACKET_WRITE;
else
- prb->ctrl = PRB_CTRL_PACKET_READ;
- } else
- prb->ctrl = 0;
-
+ ctrl = PRB_CTRL_PACKET_READ;
+ }
break;
default:
@@ -566,6 +630,7 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
BUG();
}
+ prb->ctrl = cpu_to_le16(ctrl);
ata_tf_to_fis(&qc->tf, prb->fis, 0);
if (qc->flags & ATA_QCFLAG_DMAMAP)
@@ -580,6 +645,8 @@ static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc)
dma_addr_t paddr = pp->cmd_block_dma + qc->tag * sizeof(*pp->cmd_block);
writel((u32)paddr, port + PORT_CMD_ACTIVATE);
+ writel((u64)paddr >> 32, port + PORT_CMD_ACTIVATE + 4);
+
return 0;
}
@@ -728,6 +795,10 @@ static inline void sil24_host_intr(struct ata_port *ap)
slot_stat = readl(port + PORT_SLOT_STAT);
if (!(slot_stat & HOST_SSTAT_ATTN)) {
struct sil24_port_priv *pp = ap->private_data;
+
+ if (ap->flags & SIL24_FLAG_PCIX_IRQ_WOC)
+ writel(PORT_IRQ_COMPLETE, port + PORT_IRQ_STAT);
+
/*
* !HOST_SSAT_ATTN guarantees successful completion,
* so reading back tf registers is unnecessary for
@@ -770,7 +841,7 @@ static irqreturn_t sil24_interrupt(int irq, void *dev_instance, struct pt_regs *
for (i = 0; i < host_set->n_ports; i++)
if (status & (1 << i)) {
struct ata_port *ap = host_set->ports[i];
- if (ap && !(ap->flags & ATA_FLAG_PORT_DISABLED)) {
+ if (ap && !(ap->flags & ATA_FLAG_DISABLED)) {
sil24_host_intr(host_set->ports[i]);
handled++;
} else
@@ -859,6 +930,7 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
void __iomem *host_base = NULL;
void __iomem *port_base = NULL;
int i, rc;
+ u32 tmp;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
@@ -911,35 +983,51 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/*
* Configure the device
*/
- /*
- * FIXME: This device is certainly 64-bit capable. We just
- * don't know how to use it. After fixing 32bit activation in
- * this function, enable 64bit masks here.
- */
- rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
- if (rc) {
- dev_printk(KERN_ERR, &pdev->dev,
- "32-bit DMA enable failed\n");
- goto out_free;
- }
- rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
- if (rc) {
- dev_printk(KERN_ERR, &pdev->dev,
- "32-bit consistent DMA enable failed\n");
- goto out_free;
+ if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
+ rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+ if (rc) {
+ rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ if (rc) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "64-bit DMA enable failed\n");
+ goto out_free;
+ }
+ }
+ } else {
+ rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (rc) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "32-bit DMA enable failed\n");
+ goto out_free;
+ }
+ rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ if (rc) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "32-bit consistent DMA enable failed\n");
+ goto out_free;
+ }
}
/* GPIO off */
writel(0, host_base + HOST_FLASH_CMD);
- /* Mask interrupts during initialization */
+ /* Apply workaround for completion IRQ loss on PCI-X errata */
+ if (probe_ent->host_flags & SIL24_FLAG_PCIX_IRQ_WOC) {
+ tmp = readl(host_base + HOST_CTRL);
+ if (tmp & (HOST_CTRL_TRDY | HOST_CTRL_STOP | HOST_CTRL_DEVSEL))
+ dev_printk(KERN_INFO, &pdev->dev,
+ "Applying completion IRQ loss on PCI-X "
+ "errata fix\n");
+ else
+ probe_ent->host_flags &= ~SIL24_FLAG_PCIX_IRQ_WOC;
+ }
+
+ /* clear global reset & mask interrupts during initialization */
writel(0, host_base + HOST_CTRL);
for (i = 0; i < probe_ent->n_ports; i++) {
void __iomem *port = port_base + i * PORT_REGS_SIZE;
unsigned long portu = (unsigned long)port;
- u32 tmp;
- int cnt;
probe_ent->port[i].cmd_addr = portu + PORT_PRB;
probe_ent->port[i].scr_addr = portu + PORT_SCONTROL;
@@ -953,18 +1041,20 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
tmp = readl(port + PORT_CTRL_STAT);
if (tmp & PORT_CS_PORT_RST) {
writel(PORT_CS_PORT_RST, port + PORT_CTRL_CLR);
- readl(port + PORT_CTRL_STAT); /* sync */
- for (cnt = 0; cnt < 10; cnt++) {
- msleep(10);
- tmp = readl(port + PORT_CTRL_STAT);
- if (!(tmp & PORT_CS_PORT_RST))
- break;
- }
+ tmp = ata_wait_register(port + PORT_CTRL_STAT,
+ PORT_CS_PORT_RST,
+ PORT_CS_PORT_RST, 10, 100);
if (tmp & PORT_CS_PORT_RST)
dev_printk(KERN_ERR, &pdev->dev,
"failed to clear port RST\n");
}
+ /* Configure IRQ WoC */
+ if (probe_ent->host_flags & SIL24_FLAG_PCIX_IRQ_WOC)
+ writel(PORT_CS_IRQ_WOC, port + PORT_CTRL_STAT);
+ else
+ writel(PORT_CS_IRQ_WOC, port + PORT_CTRL_CLR);
+
/* Zero error counters. */
writel(0x8000, port + PORT_DECODE_ERR_THRESH);
writel(0x8000, port + PORT_CRC_ERR_THRESH);
@@ -973,14 +1063,13 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
writel(0x0000, port + PORT_CRC_ERR_CNT);
writel(0x0000, port + PORT_HSHK_ERR_CNT);
- /* FIXME: 32bit activation? */
- writel(0, port + PORT_ACTIVATE_UPPER_ADDR);
- writel(PORT_CS_32BIT_ACTV, port + PORT_CTRL_STAT);
+ /* Always use 64bit activation */
+ writel(PORT_CS_32BIT_ACTV, port + PORT_CTRL_CLR);
/* Configure interrupts */
writel(0xffff, port + PORT_IRQ_ENABLE_CLR);
- writel(PORT_IRQ_COMPLETE | PORT_IRQ_ERROR | PORT_IRQ_SDB_FIS,
- port + PORT_IRQ_ENABLE_SET);
+ writel(PORT_IRQ_COMPLETE | PORT_IRQ_ERROR |
+ PORT_IRQ_SDB_NOTIFY, port + PORT_IRQ_ENABLE_SET);
/* Clear interrupts */
writel(0x0fff0fff, port + PORT_IRQ_STAT);
@@ -988,11 +1077,6 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/* Clear port multiplier enable and resume bits */
writel(PORT_CS_PM_EN | PORT_CS_RESUME, port + PORT_CTRL_CLR);
-
- /* Reset itself */
- if (__sil24_reset_controller(port))
- dev_printk(KERN_ERR, &pdev->dev,
- "failed to reset controller\n");
}
/* Turn on interrupts */
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c
index acc8439dea2..3097821688d 100644
--- a/drivers/scsi/sata_sis.c
+++ b/drivers/scsi/sata_sis.c
@@ -43,7 +43,7 @@
#include <linux/libata.h>
#define DRV_NAME "sata_sis"
-#define DRV_VERSION "0.5"
+#define DRV_VERSION "0.6"
enum {
sis_180 = 0,
@@ -87,7 +87,6 @@ static struct scsi_host_template sis_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = ATA_MAX_PRD,
diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c
index 724f0ed6a52..d5eb5375e26 100644
--- a/drivers/scsi/sata_svw.c
+++ b/drivers/scsi/sata_svw.c
@@ -54,7 +54,7 @@
#endif /* CONFIG_PPC_OF */
#define DRV_NAME "sata_svw"
-#define DRV_VERSION "1.07"
+#define DRV_VERSION "1.8"
enum {
/* Taskfile registers offsets */
@@ -257,7 +257,7 @@ static int k2_sata_proc_info(struct Scsi_Host *shost, char *page, char **start,
int len, index;
/* Find the ata_port */
- ap = (struct ata_port *) &shost->hostdata[0];
+ ap = ata_shost_to_port(shost);
if (ap == NULL)
return 0;
@@ -290,7 +290,6 @@ static struct scsi_host_template k2_sata_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index ae70f60c7c0..a669d058988 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -46,7 +46,7 @@
#include "sata_promise.h"
#define DRV_NAME "sata_sx4"
-#define DRV_VERSION "0.8"
+#define DRV_VERSION "0.9"
enum {
@@ -182,7 +182,6 @@ static struct scsi_host_template pdc_sata_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
@@ -834,7 +833,7 @@ static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_re
tmp = mask & (1 << i);
VPRINTK("seq %u, port_no %u, ap %p, tmp %x\n", i, port_no, ap, tmp);
if (tmp && ap &&
- !(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))) {
+ !(ap->flags & (ATA_FLAG_DISABLED | ATA_FLAG_NOINTR))) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
@@ -1376,10 +1375,6 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
- /*
- * If this driver happens to only be useful on Apple's K2, then
- * we should check that here as it has a normal Serverworks ID
- */
rc = pci_enable_device(pdev);
if (rc)
return rc;
diff --git a/drivers/scsi/sata_uli.c b/drivers/scsi/sata_uli.c
index 7ac5a5f5a90..15f81bfc30f 100644
--- a/drivers/scsi/sata_uli.c
+++ b/drivers/scsi/sata_uli.c
@@ -37,7 +37,7 @@
#include <linux/libata.h>
#define DRV_NAME "sata_uli"
-#define DRV_VERSION "0.5"
+#define DRV_VERSION "0.6"
enum {
uli_5289 = 0,
@@ -81,7 +81,6 @@ static struct scsi_host_template uli_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c
index 791bf652ba6..17aefab5f42 100644
--- a/drivers/scsi/sata_via.c
+++ b/drivers/scsi/sata_via.c
@@ -47,7 +47,7 @@
#include <asm/io.h>
#define DRV_NAME "sata_via"
-#define DRV_VERSION "1.1"
+#define DRV_VERSION "1.2"
enum board_ids_enum {
vt6420,
@@ -94,7 +94,6 @@ static struct scsi_host_template svia_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index 836bbbb26ff..9646c393212 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -222,7 +222,7 @@ static irqreturn_t vsc_sata_interrupt (int irq, void *dev_instance,
ap = host_set->ports[i];
if (ap && !(ap->flags &
- (ATA_FLAG_PORT_DISABLED|ATA_FLAG_NOINTR))) {
+ (ATA_FLAG_DISABLED|ATA_FLAG_NOINTR))) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
@@ -263,7 +263,6 @@ static struct scsi_host_template vsc_sata_sht = {
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 5f0fdfb2618..1c75646f968 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1537,8 +1537,8 @@ int scsi_error_handler(void *data)
* what we need to do to get it up and online again (if we can).
* If we fail, we end up taking the thing offline.
*/
- if (shost->hostt->eh_strategy_handler)
- shost->hostt->eh_strategy_handler(shost);
+ if (shost->transportt->eh_strategy_handler)
+ shost->transportt->eh_strategy_handler(shost);
else
scsi_unjam_host(shost);
diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index b131432c677..a6cfbb3b361 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -88,7 +88,7 @@ zalon_probe(struct parisc_device *dev)
struct gsc_irq gsc_irq;
u32 zalon_vers;
int error = -ENODEV;
- void __iomem *zalon = ioremap(dev->hpa.start, 4096);
+ void __iomem *zalon = ioremap_nocache(dev->hpa.start, 4096);
void __iomem *io_port = zalon + GSC_SCSI_ZALON_OFFSET;
static int unit = 0;
struct Scsi_Host *host;