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authorTejun Heo <htejun@gmail.com>2007-09-23 13:14:11 +0900
committerJeff Garzik <jeff@garzik.org>2007-10-12 14:55:40 -0400
commit854c73a2f1c3bcc4aa88c25e208dc597e8efb795 (patch)
tree210569f3c4fa4f9413ceb0bc3fcf89648a9894b2
parentc78968bb0f7714ceba1cdfa23714454fc98cefdf (diff)
libata: misc updates for AN
Update AN support in preparation of PMP support. * s/ata_id_has_AN/ata_id_has_atapi_AN/ * add AN enabled reporting during configuration * add err_mask to AN configuration failure reporting * update LOCKING comment for ata_scsi_media_change_notify() * check whether ATA dev is attached to SCSI dev ata_scsi_media_change_notify() * set ATA_FLAG_AN in ahci and sata_sil24 Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Kriten Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/ata/ahci.c2
-rw-r--r--drivers/ata/libata-core.c24
-rw-r--r--drivers/ata/libata-scsi.c7
-rw-r--r--drivers/ata/sata_sil24.c13
-rw-r--r--include/linux/ata.h2
5 files changed, 31 insertions, 17 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index b721569faaf8..0a6b694f0d3a 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -177,7 +177,7 @@ enum {
AHCI_FLAG_COMMON = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
- ATA_FLAG_ACPI_SATA,
+ ATA_FLAG_ACPI_SATA | ATA_FLAG_AN,
AHCI_LFLAG_COMMON = ATA_LFLAG_SKIP_D2H_BSY,
};
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 8d425064ce2c..1daea1caf3e5 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2010,7 +2010,8 @@ int ata_dev_configure(struct ata_device *dev)
/* ATAPI-specific feature tests */
else if (dev->class == ATA_DEV_ATAPI) {
- char *cdb_intr_string = "";
+ const char *cdb_intr_string = "";
+ const char *atapi_an_string = "";
rc = atapi_cdb_len(id);
if ((rc < 12) || (rc > ATAPI_CDB_LEN)) {
@@ -2026,16 +2027,19 @@ int ata_dev_configure(struct ata_device *dev)
* check to see if this ATAPI device supports
* Asynchronous Notification
*/
- if ((ap->flags & ATA_FLAG_AN) && ata_id_has_AN(id)) {
- int err;
+ if ((ap->flags & ATA_FLAG_AN) && ata_id_has_atapi_AN(id)) {
+ unsigned int err_mask;
+
/* issue SET feature command to turn this on */
- err = ata_dev_set_AN(dev, SETFEATURES_SATA_ENABLE);
- if (err)
+ err_mask = ata_dev_set_AN(dev, SETFEATURES_SATA_ENABLE);
+ if (err_mask)
ata_dev_printk(dev, KERN_ERR,
- "unable to set AN, err %x\n",
- err);
- else
+ "failed to enable ATAPI AN "
+ "(err_mask=0x%x)\n", err_mask);
+ else {
dev->flags |= ATA_DFLAG_AN;
+ atapi_an_string = ", ATAPI AN";
+ }
}
if (ata_id_cdb_intr(dev->id)) {
@@ -2046,10 +2050,10 @@ int ata_dev_configure(struct ata_device *dev)
/* print device info to dmesg */
if (ata_msg_drv(ap) && print_info)
ata_dev_printk(dev, KERN_INFO,
- "ATAPI: %s, %s, max %s%s\n",
+ "ATAPI: %s, %s, max %s%s%s\n",
modelbuf, fwrevbuf,
ata_mode_string(xfer_mask),
- cdb_intr_string);
+ cdb_intr_string, atapi_an_string);
}
/* determine max_sectors */
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 468d791a303c..dc274001ddd9 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3238,12 +3238,13 @@ static void ata_scsi_handle_link_detach(struct ata_link *link)
* event.
*
* LOCKING:
- * interrupt context, may not sleep.
+ * spin_lock_irqsave(host lock)
*/
-void ata_scsi_media_change_notify(struct ata_device *atadev)
+void ata_scsi_media_change_notify(struct ata_device *dev)
{
#ifdef OTHER_AN_PATCHES_HAVE_BEEN_APPLIED
- scsi_device_event_notify(atadev->sdev, SDEV_MEDIA_CHANGE);
+ if (dev->sdev)
+ scsi_device_event_notify(dev->sdev, SDEV_MEDIA_CHANGE);
#endif
}
EXPORT_SYMBOL_GPL(ata_scsi_media_change_notify);
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index 3dcb223117be..d9c010ab2280 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -168,7 +168,7 @@ enum {
DEF_PORT_IRQ = PORT_IRQ_COMPLETE | PORT_IRQ_ERROR |
PORT_IRQ_PHYRDY_CHG | PORT_IRQ_DEV_XCHG |
- PORT_IRQ_UNK_FIS,
+ PORT_IRQ_UNK_FIS | PORT_IRQ_SDB_NOTIFY,
/* bits[27:16] are unmasked (raw) */
PORT_IRQ_RAW_SHIFT = 16,
@@ -237,7 +237,8 @@ enum {
/* host flags */
SIL24_COMMON_FLAGS = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
- ATA_FLAG_NCQ | ATA_FLAG_ACPI_SATA,
+ ATA_FLAG_NCQ | ATA_FLAG_ACPI_SATA |
+ ATA_FLAG_AN,
SIL24_COMMON_LFLAGS = ATA_LFLAG_SKIP_D2H_BSY,
SIL24_FLAG_PCIX_IRQ_WOC = (1 << 24), /* IRQ loss errata on PCI-X */
@@ -818,6 +819,14 @@ static void sil24_error_intr(struct ata_port *ap)
ata_ehi_push_desc(ehi, "irq_stat 0x%08x", irq_stat);
+ if (irq_stat & PORT_IRQ_SDB_NOTIFY) {
+ struct ata_device *dev = ap->link.device;
+
+ ata_ehi_push_desc(ehi, "SDB notify");
+ if (dev->flags & ATA_DFLAG_AN)
+ ata_scsi_media_change_notify(dev);
+ }
+
if (irq_stat & (PORT_IRQ_PHYRDY_CHG | PORT_IRQ_DEV_XCHG)) {
ata_ehi_hotplugged(ehi);
ata_ehi_push_desc(ehi, "%s",
diff --git a/include/linux/ata.h b/include/linux/ata.h
index a749f006387f..21f00a0646d8 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -353,7 +353,7 @@ struct ata_taskfile {
#define ata_id_queue_depth(id) (((id)[75] & 0x1f) + 1)
#define ata_id_removeable(id) ((id)[0] & (1 << 7))
#define ata_id_has_dword_io(id) ((id)[48] & (1 << 0))
-#define ata_id_has_AN(id) \
+#define ata_id_has_atapi_AN(id) \
( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \
((id)[78] & (1 << 5)) )
#define ata_id_iordy_disable(id) ((id)[49] & (1 << 10))