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authorBrian King <brking@linux.vnet.ibm.com>2007-04-26 16:00:12 -0500
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-05-06 09:33:19 -0500
commit65f5647544960a68030352015d0b4a6234a818f8 (patch)
treee862690a950706a514c3bb25012f8353db11dfe1
parent8a048994f4be7d0b670a358cea7812c6d5232105 (diff)
[SCSI] ipr: Handle IOA reset request
In ipr dual adapter configurations, the ipr adapter firmware may require an adapter reset for various reasons. The reset is requested by the adapter firmware logging an error with an IOASC of 0x02048000. Add support to log this error, and reset the adapter. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
-rw-r--r--drivers/scsi/ipr.c14
-rw-r--r--drivers/scsi/ipr.h1
2 files changed, 13 insertions, 2 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index d871dd37d22..393eda1d653 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -206,6 +206,8 @@ struct ipr_error_table_t ipr_error_table[] = {
"8009: Impending cache battery pack failure"},
{0x02040400, 0, 0,
"34FF: Disk device format in progress"},
+ {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
+ "9070: IOA requested reset"},
{0x023F0000, 0, 0,
"Synchronization required"},
{0x024E0000, 0, 0,
@@ -1672,12 +1674,15 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+ u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
list_del(&hostrcb->queue);
list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
if (!ioasc) {
ipr_handle_log_data(ioa_cfg, hostrcb);
+ if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
+ ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
} else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
dev_err(&ioa_cfg->pdev->dev,
"Host RCB failed with IOASC: 0x%08X\n", ioasc);
@@ -6290,6 +6295,7 @@ static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
struct ipr_hostrcb *hostrcb;
struct ipr_uc_sdt sdt;
int rc, length;
+ u32 ioasc;
mailbox = readl(ioa_cfg->ioa_mailbox);
@@ -6322,9 +6328,13 @@ static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
(__be32 *)&hostrcb->hcam,
min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
- if (!rc)
+ if (!rc) {
ipr_handle_log_data(ioa_cfg, hostrcb);
- else
+ ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
+ if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
+ ioa_cfg->sdt_state == GET_DUMP)
+ ioa_cfg->sdt_state = WAIT_FOR_DUMP;
+ } else
ipr_unit_check_no_data(ioa_cfg);
list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index bc53d7cebe0..c7e045aa16a 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -91,6 +91,7 @@
* IOASCs
*/
#define IPR_IOASC_NR_INIT_CMD_REQUIRED 0x02040200
+#define IPR_IOASC_NR_IOA_RESET_REQUIRED 0x02048000
#define IPR_IOASC_SYNC_REQUIRED 0x023f0000
#define IPR_IOASC_MED_DO_NOT_REALLOC 0x03110C00
#define IPR_IOASC_HW_SEL_TIMEOUT 0x04050000