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[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>
This commit is contained in:
Brian King 2007-04-26 16:00:12 -05:00 committed by James Bottomley
parent 8a048994f4
commit 65f5647544
2 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/scsi/ipr.c
View File

@ -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);

1
drivers/scsi/ipr.h
View File

@ -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