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libata: misc updates for AN

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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>
This commit is contained in:
Tejun Heo 2007-09-23 13:14:11 +09:00 committed by Jeff Garzik
parent c78968bb0f
commit 854c73a2f1
5 changed files with 31 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/ata/ahci.c
View File

@ -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,
};

24
drivers/ata/libata-core.c
View File

@ -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 */

7
drivers/ata/libata-scsi.c
View File

@ -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);

13
drivers/ata/sata_sil24.c
View File

@ -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",

2
include/linux/ata.h
View File

@ -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))