---

yaml --- r: 72742 b: refs/heads/master c: 054a5fb h: refs/heads/master v: v3
git-mirror · Oct 29, 2007 · 4ed0f85 · 4ed0f85
1 parent 6e33d54
commit 4ed0f85
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Showing 5 changed files with 18 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4dbfa39b6c95eb9d0aedb5bd00bb552b91c31e3d
+refs/heads/master: 054a5fbaceb2eb3a31ea843c1cf0b8e10b91478c
diff --git a/trunk/drivers/ata/libata-core.c b/trunk/drivers/ata/libata-core.c
@@ -5630,6 +5630,10 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
 			ehi->dev_action[dev->devno] |= ATA_EH_REVALIDATE;
 			ata_port_schedule_eh(ap);
 			break;
+
+		case ATA_CMD_SLEEP:
+			dev->flags |= ATA_DFLAG_SLEEPING;
+			break;
 		}
 
 		__ata_qc_complete(qc);
@@ -5769,6 +5773,14 @@ void ata_qc_issue(struct ata_queued_cmd *qc)
 		qc->flags &= ~ATA_QCFLAG_DMAMAP;
 	}
 
+	/* if device is sleeping, schedule softreset and abort the link */
+	if (unlikely(qc->dev->flags & ATA_DFLAG_SLEEPING)) {
+		link->eh_info.action |= ATA_EH_SOFTRESET;
+		ata_ehi_push_desc(&link->eh_info, "waking up from sleep");
+		ata_link_abort(link);
+		return;
+	}
+
 	ap->ops->qc_prep(qc);
 
 	qc->err_mask |= ap->ops->qc_issue(qc);

diff --git a/trunk/drivers/ata/libata-eh.c b/trunk/drivers/ata/libata-eh.c
@@ -2208,9 +2208,11 @@ int ata_eh_reset(struct ata_link *link, int classify,
 		ata_link_for_each_dev(dev, link) {
 			/* After the reset, the device state is PIO 0
 			 * and the controller state is undefined.
-			 * Record the mode.
+			 * Reset also wakes up drives from sleeping
+			 * mode.
 			 */
 			dev->pio_mode = XFER_PIO_0;
+			dev->flags &= ~ATA_DFLAG_SLEEPING;
 
 			if (ata_link_offline(link))
 				continue;

diff --git a/trunk/include/linux/ata.h b/trunk/include/linux/ata.h
@@ -180,6 +180,7 @@ enum {
 	ATA_CMD_VERIFY_EXT	= 0x42,
 	ATA_CMD_STANDBYNOW1	= 0xE0,
 	ATA_CMD_IDLEIMMEDIATE	= 0xE1,
+	ATA_CMD_SLEEP		= 0xE6,
 	ATA_CMD_INIT_DEV_PARAMS	= 0x91,
 	ATA_CMD_READ_NATIVE_MAX	= 0xF8,
 	ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,

diff --git a/trunk/include/linux/libata.h b/trunk/include/linux/libata.h
@@ -138,6 +138,7 @@ enum {
 	ATA_DFLAG_PIO		= (1 << 12), /* device limited to PIO mode */
 	ATA_DFLAG_NCQ_OFF	= (1 << 13), /* device limited to non-NCQ mode */
 	ATA_DFLAG_SPUNDOWN	= (1 << 14), /* XXX: for spindown_compat */
+	ATA_DFLAG_SLEEPING	= (1 << 15), /* device is sleeping */
 	ATA_DFLAG_INIT_MASK	= (1 << 16) - 1,
 
 	ATA_DFLAG_DETACH	= (1 << 16),