Patch 6/6:
INIT_DEV_PARAMS and SET_MULTI_MODE change the device parameters cached by libata.
Re-read IDENTIFY DEVICE info and update the cached device paramters when seeing these commands.
Signed-off-by: Albert Lee <albertcc@xxxxxxxxxx>
---
diff -Nrup 05_supp_atapi/drivers/ata/libata-scsi.c 06_sync_param/drivers/ata/libata-scsi.c
--- 05_supp_atapi/drivers/ata/libata-scsi.c 2007-06-07 14:44:30.000000000 +0800
+++ 06_sync_param/drivers/ata/libata-scsi.c 2007-06-07 14:44:33.000000000 +0800
@@ -1363,12 +1363,22 @@ static void ata_scsi_qc_complete(struct
* schedule EH_REVALIDATE operation to update the IDENTIFY DEVICE
* cache
*/
- if (ap->ops->error_handler &&
- !need_sense && (qc->tf.command == ATA_CMD_SET_FEATURES) &&
- ((qc->tf.feature == SETFEATURES_WC_ON) ||
- (qc->tf.feature == SETFEATURES_WC_OFF))) {
- ap->eh_info.action |= ATA_EH_REVALIDATE;
- ata_port_schedule_eh(ap);
+ if (ap->ops->error_handler && !need_sense) {
+ switch (qc->tf.command) {
+ case ATA_CMD_SET_FEATURES:
+ if ((qc->tf.feature == SETFEATURES_WC_ON) ||
+ (qc->tf.feature == SETFEATURES_WC_OFF)) {
+ ap->eh_info.action |= ATA_EH_REVALIDATE;
+ ata_port_schedule_eh(ap);
+ }
+ break;
+
+ case ATA_CMD_INIT_DEV_PARAMS: /* CHS translation changed */
+ case ATA_CMD_SET_MULTI: /* multi_count changed */
+ ap->eh_info.action |= ATA_EH_REVALIDATE;
+ ata_port_schedule_eh(ap);
+ break;
+ }
}
/* For ATA pass thru (SAT) commands, generate a sense block if
diff -Nrup 05_supp_atapi/include/linux/ata.h 06_sync_param/include/linux/ata.h
--- 05_supp_atapi/include/linux/ata.h 2007-06-06 13:34:05.000000000 +0800
+++ 06_sync_param/include/linux/ata.h 2007-06-07 10:50:26.000000000 +0800
@@ -151,6 +151,7 @@ enum {
ATA_CMD_WRITE_MULTI_EXT = 0x39,
ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE,
ATA_CMD_SET_FEATURES = 0xEF,
+ ATA_CMD_SET_MULTI = 0xC6,
ATA_CMD_PACKET = 0xA0,
ATA_CMD_VERIFY = 0x40,
ATA_CMD_VERIFY_EXT = 0x42,
-
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