diff options
| author | Vikas Chaudhary <vikas.chaudhary@qlogic.com> | 2013-03-07 14:43:10 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-04-10 22:45:16 +0400 |
| commit | 6cf9412124a4a2166b4d5a6919050f7fdfb82b64 (patch) | |
| tree | 923ad0a681bfff24d1e235111004167d23522657 /drivers/scsi/qla4xxx | |
| parent | ebd777dec72991a26af247ab83c8f7f288b28621 (diff) | |
| download | linux-6cf9412124a4a2166b4d5a6919050f7fdfb82b64.tar.xz | |
[SCSI] qla4xxx: Fix double reset in case of firmware hung for ISP83XX
In case of firmware hung we need to call "mailbox_premature_completion" to
complete any pending mbox command as firmware is not alive.
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla4xxx')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_os.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index b3ccb1ad8c02..ade1ba6b3451 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -2543,6 +2543,7 @@ static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) void qla4_8xxx_watchdog(struct scsi_qla_host *ha) { uint32_t dev_state; + uint32_t idc_ctrl; /* don't poll if reset is going on */ if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || @@ -2561,10 +2562,23 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha) qla4xxx_wake_dpc(ha); } else if (dev_state == QLA8XXX_DEV_NEED_RESET && !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { + + ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", + __func__); + + if (is_qla8032(ha)) { + idc_ctrl = qla4_83xx_rd_reg(ha, + QLA83XX_IDC_DRV_CTRL); + if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { + ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", + __func__); + qla4xxx_mailbox_premature_completion( + ha); + } + } + if (is_qla8032(ha) || (is_qla8022(ha) && !ql4xdontresethba)) { - ql4_printk(KERN_INFO, ha, "%s: HW State: " - "NEED RESET!\n", __func__); set_bit(DPC_RESET_HA, &ha->dpc_flags); qla4xxx_wake_dpc(ha); } |