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qla2xxx: Disable the adapter and skip error recovery in case of register disconnect.

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If there is error recovery going on due to command timeout and
there is register disconnect, then disable the adapter.

Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Sawan Chandak 2016-07-06 11:14:32 -04:00 committed by Martin K. Petersen
parent 9e052e2d4f
commit a465537ad1
3 changed files with 59 additions and 1 deletions
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3
drivers/scsi/qla2xxx/qla_attr.c
View file

@ -1769,6 +1769,9 @@ qla2x00_terminate_rport_io(struct fc_rport *rport)
if (!fcport)
return;
if (test_bit(UNLOADING, &fcport->vha->dpc_flags))
return;
if (test_bit(ABORT_ISP_ACTIVE, &fcport->vha->dpc_flags))
return;

2
drivers/scsi/qla2xxx/qla_dbg.c
View file

@ -41,7 +41,7 @@
* | | | 0x70ad-0x70ae |
* | | | 0x70d0-0x70d6 |
* | | | 0x70d7-0x70db |
* | Task Management | 0x803d | 0x8000,0x800b |
* | Task Management | 0x8042 | 0x8000,0x800b |
* | | | 0x8019 |
* | | | 0x8025,0x8026 |
* | | | 0x8031,0x8032 |

55
drivers/scsi/qla2xxx/qla_os.c
View file

@ -943,6 +943,30 @@ sp_get(struct srb *sp)
atomic_inc(&sp->ref_count);
}
#define ISP_REG_DISCONNECT 0xffffffffU
/**************************************************************************
* qla2x00_isp_reg_stat
*
* Description:
* Read the host status register of ISP before aborting the command.
*
* Input:
* ha = pointer to host adapter structure.
*
*
* Returns:
* Either true or false.
*
* Note: Return true if there is register disconnect.
**************************************************************************/
static inline
uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
{
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
return ((RD_REG_DWORD(&reg->host_status)) == ISP_REG_DISCONNECT);
}
/**************************************************************************
* qla2xxx_eh_abort
*
@ -970,6 +994,11 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
int rval, wait = 0;
struct qla_hw_data *ha = vha->hw;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x8042,
"PCI/Register disconnect, exiting.\n");
return FAILED;
}
if (!CMD_SP(cmd))
return SUCCESS;
@ -1153,6 +1182,12 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
struct qla_hw_data *ha = vha->hw;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x803e,
"PCI/Register disconnect, exiting.\n");
return FAILED;
}
return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
ha->isp_ops->lun_reset);
}
@ -1163,6 +1198,12 @@ qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
struct qla_hw_data *ha = vha->hw;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x803f,
"PCI/Register disconnect, exiting.\n");
return FAILED;
}
return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
ha->isp_ops->target_reset);
}
@ -1190,6 +1231,13 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
int ret = FAILED;
unsigned int id;
uint64_t lun;
struct qla_hw_data *ha = vha->hw;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x8040,
"PCI/Register disconnect, exiting.\n");
return FAILED;
}
id = cmd->device->id;
lun = cmd->device->lun;
@ -1259,6 +1307,13 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
uint64_t lun;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x8041,
"PCI/Register disconnect, exiting.\n");
schedule_work(&ha->board_disable);
return SUCCESS;
}
id = cmd->device->id;
lun = cmd->device->lun;