scsi: qla2xxx: Implementation to get and manage host, target stats and initiator port
This statistics will help in debugging process and checking specific error
counts. It also provides a capability to isolate the port or bring it out
of isolation.
Link: https://lore.kernel.org/r/20210111093134.1206-2-njavali@marvell.com
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index f80abe2..a760cb3 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1274,6 +1274,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
sp = scsi_cmd_priv(cmd);
qpair = sp->qpair;
+ vha->cmd_timeout_cnt++;
+
if ((sp->fcport && sp->fcport->deleted) || !qpair)
return SUCCESS;
@@ -1442,6 +1444,7 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
"%s RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n", name,
reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
cmd);
+ vha->reset_cmd_err_cnt++;
return FAILED;
}
@@ -3141,6 +3144,10 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
ha->mr.fcport.scan_state = 1;
+ qla2xxx_reset_stats(host, QLA2XX_HW_ERROR | QLA2XX_SHT_LNK_DWN |
+ QLA2XX_INT_ERR | QLA2XX_CMD_TIMEOUT |
+ QLA2XX_RESET_CMD_ERR | QLA2XX_TGT_SHT_LNK_DOWN);
+
/* Set the SG table size based on ISP type */
if (!IS_FWI2_CAPABLE(ha)) {
if (IS_QLA2100(ha))
@@ -5090,6 +5097,7 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
fcport->d_id = e->u.new_sess.id;
fcport->flags |= FCF_FABRIC_DEVICE;
fcport->fw_login_state = DSC_LS_PLOGI_PEND;
+ fcport->tgt_short_link_down_cnt = 0;
memcpy(fcport->port_name, e->u.new_sess.port_name,
WWN_SIZE);
@@ -7061,6 +7069,8 @@ qla2x00_timer(struct timer_list *t)
uint16_t w;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
+ unsigned long flags;
+ fc_port_t *fcport = NULL;
if (ha->flags.eeh_busy) {
ql_dbg(ql_dbg_timer, vha, 0x6000,
@@ -7092,6 +7102,16 @@ qla2x00_timer(struct timer_list *t)
if (!vha->vp_idx && IS_QLAFX00(ha))
qlafx00_timer_routine(vha);
+ if (vha->link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
+ vha->link_down_time++;
+
+ spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
+ list_for_each_entry(fcport, &vha->vp_fcports, list) {
+ if (fcport->tgt_link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
+ fcport->tgt_link_down_time++;
+ }
+ spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+
/* Loop down handler. */
if (atomic_read(&vha->loop_down_timer) > 0 &&
!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
