From: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx>
On encountering unexpected error conditions from driver initiated
commands, print something useful like CDB and sense data rather than
something useless like the kernel virtual address of the command buffer.
Signed-off-by: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx>
---
drivers/scsi/hpsa.c | 71 ++++++++++++++++++++++++++++++++-------------------
1 files changed, 44 insertions(+), 27 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 5193fab..5b96799 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -1847,17 +1847,37 @@ static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h,
hpsa_pci_unmap(h->pdev, c, 1, data_direction);
}
-static void hpsa_scsi_interpret_error(struct CommandList *cp)
+static void hpsa_print_cmd(struct ctlr_info *h, char *txt,
+ struct CommandList *c)
{
- struct ErrorInfo *ei;
+ const u8 *cdb = c->Request.CDB;
+ const u8 *lun = c->Header.LUN.LunAddrBytes;
+
+ dev_warn(&h->pdev->dev, "%s: LUN:%02x%02x%02x%02x%02x%02x%02x%02x"
+ " CDB:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+ txt, lun[0], lun[1], lun[2], lun[3],
+ lun[4], lun[5], lun[6], lun[7],
+ cdb[0], cdb[1], cdb[2], cdb[3],
+ cdb[4], cdb[5], cdb[6], cdb[7],
+ cdb[8], cdb[9], cdb[10], cdb[11],
+ cdb[12], cdb[13], cdb[14], cdb[15]);
+}
+
+static void hpsa_scsi_interpret_error(struct ctlr_info *h,
+ struct CommandList *cp)
+{
+ const struct ErrorInfo *ei = cp->err_info;
struct device *d = &cp->h->pdev->dev;
+ const u8 *sd = ei->SenseInfo;
- ei = cp->err_info;
switch (ei->CommandStatus) {
case CMD_TARGET_STATUS:
- dev_warn(d, "cmd %p has completed with errors\n", cp);
- dev_warn(d, "cmd %p has SCSI Status = %x\n", cp,
- ei->ScsiStatus);
+ hpsa_print_cmd(h, "SCSI status", cp);
+ if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION)
+ dev_warn(d, "SCSI Status = 02, Sense key = %02x, ASC = %02x, ASCQ = %02x\n",
+ sd[2] & 0x0f, sd[12], sd[13]);
+ else
+ dev_warn(d, "SCSI Status = %02x\n", ei->ScsiStatus);
if (ei->ScsiStatus == 0)
dev_warn(d, "SCSI status is abnormally zero. "
"(probably indicates selection timeout "
@@ -1865,48 +1885,45 @@ static void hpsa_scsi_interpret_error(struct CommandList *cp)
"firmware bug, circa July, 2001.)\n");
break;
case CMD_DATA_UNDERRUN: /* let mid layer handle it. */
- dev_info(d, "UNDERRUN\n");
break;
case CMD_DATA_OVERRUN:
- dev_warn(d, "cp %p has completed with data overrun\n", cp);
+ hpsa_print_cmd(h, "overrun condition", cp);
break;
case CMD_INVALID: {
/* controller unfortunately reports SCSI passthru's
* to non-existent targets as invalid commands.
*/
- dev_warn(d, "cp %p is reported invalid (probably means "
- "target device no longer present)\n", cp);
- /* print_bytes((unsigned char *) cp, sizeof(*cp), 1, 0);
- print_cmd(cp); */
+ hpsa_print_cmd(h, "invalid command", cp);
+ dev_warn(d, "probably means device no longer present\n");
}
break;
case CMD_PROTOCOL_ERR:
- dev_warn(d, "cp %p has protocol error \n", cp);
+ hpsa_print_cmd(h, "protocol error", cp);
break;
case CMD_HARDWARE_ERR:
- /* cmd->result = DID_ERROR << 16; */
- dev_warn(d, "cp %p had hardware error\n", cp);
+ hpsa_print_cmd(h, "hardware error", cp);
break;
case CMD_CONNECTION_LOST:
- dev_warn(d, "cp %p had connection lost\n", cp);
+ hpsa_print_cmd(h, "connection lost", cp);
break;
case CMD_ABORTED:
- dev_warn(d, "cp %p was aborted\n", cp);
+ hpsa_print_cmd(h, "aborted", cp);
break;
case CMD_ABORT_FAILED:
- dev_warn(d, "cp %p reports abort failed\n", cp);
+ hpsa_print_cmd(h, "abort failed", cp);
break;
case CMD_UNSOLICITED_ABORT:
- dev_warn(d, "cp %p aborted due to an unsolicited abort\n", cp);
+ hpsa_print_cmd(h, "unsolicited abort", cp);
break;
case CMD_TIMEOUT:
- dev_warn(d, "cp %p timed out\n", cp);
+ hpsa_print_cmd(h, "timed out", cp);
break;
case CMD_UNABORTABLE:
- dev_warn(d, "Command unabortable\n");
+ hpsa_print_cmd(h, "unabortable", cp);
break;
default:
- dev_warn(d, "cp %p returned unknown status %x\n", cp,
+ hpsa_print_cmd(h, "unknown status", cp);
+ dev_warn(d, "Unknown command status %x\n",
ei->CommandStatus);
}
}
@@ -1934,7 +1951,7 @@ static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr,
hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
- hpsa_scsi_interpret_error(c);
+ hpsa_scsi_interpret_error(h, c);
rc = -1;
}
out:
@@ -1965,7 +1982,7 @@ static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr,
ei = c->err_info;
if (ei->CommandStatus != 0) {
- hpsa_scsi_interpret_error(c);
+ hpsa_scsi_interpret_error(h, c);
rc = -1;
}
cmd_special_free(h, c);
@@ -2089,7 +2106,7 @@ static int hpsa_get_raid_map(struct ctlr_info *h,
hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
- hpsa_scsi_interpret_error(c);
+ hpsa_scsi_interpret_error(h, c);
cmd_special_free(h, c);
return -1;
}
@@ -2231,7 +2248,7 @@ static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical,
ei = c->err_info;
if (ei->CommandStatus != 0 &&
ei->CommandStatus != CMD_DATA_UNDERRUN) {
- hpsa_scsi_interpret_error(c);
+ hpsa_scsi_interpret_error(h, c);
rc = -1;
} else {
if (buf->extended_response_flag != extended_response) {
@@ -3975,7 +3992,7 @@ static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr,
default:
dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: interpreting error.\n",
__func__, tagupper, taglower);
- hpsa_scsi_interpret_error(c);
+ hpsa_scsi_interpret_error(h, c);
rc = -1;
break;
}
--
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