From: Chad Dupuis <chad.dupuis@xxxxxxxxxx>
This can block progress of the SCSI error handler thread and cause long I/O
outages. Instead just fail immediately if another reset is going on or we are
accessing flash memory.
Signed-off-by: Chad Dupuis <chad.dupuis@xxxxxxxxxx>
Signed-off-by: Saurav Kashyap <saurav.kashyap@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_dbg.c | 1 +
drivers/scsi/qla2xxx/qla_os.c | 51 ++++------------------------------------
2 files changed, 6 insertions(+), 46 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 96f7d71..c72ee97b 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -46,6 +46,7 @@
* | | | 0x70d7-0x70db |
* | | | 0x70de-0x70df |
* | Task Management | 0x803d | 0x8000,0x800b |
+ * | | | 0x8019 |
* | | | 0x8025,0x8026 |
* | | | 0x8031,0x8032 |
* | | | 0x8039,0x803c |
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 5a70e24..5a430c7 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -865,51 +865,6 @@ qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha)
msleep(1000);
}
-/*
- * qla2x00_wait_for_reset_ready
- * Wait till the HBA is online after going through
- * <= MAX_RETRIES_OF_ISP_ABORT or
- * finally HBA is disabled ie marked offline or flash
- * operations are in progress.
- *
- * Input:
- * ha - pointer to host adapter structure
- *
- * Note:
- * Does context switching-Release SPIN_LOCK
- * (if any) before calling this routine.
- *
- * Return:
- * Success (Adapter is online/no flash ops) : 0
- * Failed (Adapter is offline/disabled/flash ops in progress) : 1
- */
-static int
-qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
-{
- int return_status;
- unsigned long wait_online;
- struct qla_hw_data *ha = vha->hw;
- scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
-
- wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
- while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
- test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
- test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
- ha->optrom_state != QLA_SWAITING ||
- ha->dpc_active) && time_before(jiffies, wait_online))
- msleep(1000);
-
- if (base_vha->flags.online && ha->optrom_state == QLA_SWAITING)
- return_status = QLA_SUCCESS;
- else
- return_status = QLA_FUNCTION_FAILED;
-
- ql_dbg(ql_dbg_taskm, vha, 0x8019,
- "%s return status=%d.\n", __func__, return_status);
-
- return return_status;
-}
-
int
qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
{
@@ -1274,7 +1229,11 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
ql_log(ql_log_info, vha, 0x8018,
"ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
- if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
+ /*
+ * No point in issuing another reset if one is active. Also do not
+ * attempt a reset if we are updating flash.
+ */
+ if (qla2x00_reset_active(vha) || ha->optrom_state != QLA_SWAITING)
goto eh_host_reset_lock;
if (vha != base_vha) {
--
1.7.7
--
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