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>

1 files changed, 11 insertions, 2 deletions

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",