From: Quinn Tran <qutran@xxxxxxxxxxx>
Add error handling logic to ELS Passthrough relating to NVME
devices. Current code does not parse error code to take proper
recovery action, instead it re-login with the same login parameters
that encountered the error. Ex: nport handle collision.
Signed-off-by: Quinn Tran <qutran@xxxxxxxxxxx>
Signed-off-by: Himanshu Madhani <hmadhani@xxxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_iocb.c | 95 +++++++++++++++++++++++++++++++++++++++--
1 file changed, 92 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 5c279449ca1c..840c3bf2a364 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2765,6 +2765,10 @@ qla2x00_els_dcmd2_sp_done(void *ptr, int res)
struct scsi_qla_host *vha = sp->vha;
struct event_arg ea;
struct qla_work_evt *e;
+ struct fc_port *conflict_fcport;
+ port_id_t cid; /* conflict Nport id */
+ u32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status;
+ u16 lid;
ql_dbg(ql_dbg_disc, vha, 0x3072,
"%s ELS done rc %d hdl=%x, portid=%06x %8phC\n",
@@ -2776,14 +2780,99 @@ qla2x00_els_dcmd2_sp_done(void *ptr, int res)
if (sp->flags & SRB_WAKEUP_ON_COMP)
complete(&lio->u.els_plogi.comp);
else {
- if (res) {
- set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
- } else {
+ switch (fw_status[0]) {
+ case CS_DATA_UNDERRUN:
+ case CS_COMPLETE:
memset(&ea, 0, sizeof(ea));
ea.fcport = fcport;
ea.rc = res;
ea.event = FCME_ELS_PLOGI_DONE;
qla2x00_fcport_event_handler(vha, &ea);
+ break;
+ case CS_IOCB_ERROR:
+ switch (fw_status[1]) {
+ case LSC_SCODE_PORTID_USED:
+ lid = fw_status[2] & 0xffff;
+ qlt_find_sess_invalidate_other(vha,
+ wwn_to_u64(fcport->port_name),
+ fcport->d_id, lid, &conflict_fcport);
+ if (conflict_fcport) {
+ /*
+ * Another fcport shares the same
+ * loop_id & nport id; conflict
+ * fcport needs to finish cleanup
+ * before this fcport can proceed
+ * to login.
+ */
+ conflict_fcport->conflict = fcport;
+ fcport->login_pause = 1;
+ ql_dbg(ql_dbg_disc, vha, 0x20ed,
+ "%s %d %8phC pid %06x inuse with lid %#x post gidpn\n",
+ __func__, __LINE__,
+ fcport->port_name,
+ fcport->d_id.b24, lid);
+ } else {
+ ql_dbg(ql_dbg_disc, vha, 0x20ed,
+ "%s %d %8phC pid %06x inuse with lid %#x sched del\n",
+ __func__, __LINE__,
+ fcport->port_name,
+ fcport->d_id.b24, lid);
+ qla2x00_clear_loop_id(fcport);
+ set_bit(lid, vha->hw->loop_id_map);
+ fcport->loop_id = lid;
+ fcport->keep_nport_handle = 0;
+ qlt_schedule_sess_for_deletion(fcport);
+ }
+ break;
+
+ case LSC_SCODE_NPORT_USED:
+ cid.b.domain = (fw_status[2] >> 16) & 0xff;
+ cid.b.area = (fw_status[2] >> 8) & 0xff;
+ cid.b.al_pa = fw_status[2] & 0xff;
+ cid.b.rsvd_1 = 0;
+
+ ql_dbg(ql_dbg_disc, vha, 0x20ec,
+ "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
+ __func__, __LINE__, fcport->port_name,
+ fcport->loop_id, cid.b24);
+ set_bit(fcport->loop_id,
+ vha->hw->loop_id_map);
+ fcport->loop_id = FC_NO_LOOP_ID;
+ qla24xx_post_gnl_work(vha, fcport);
+ break;
+
+ case LSC_SCODE_NOXCB:
+ vha->hw->exch_starvation++;
+ if (vha->hw->exch_starvation > 5) {
+ ql_log(ql_log_warn, vha, 0xd046,
+ "Exchange starvation. Resetting RISC\n");
+ vha->hw->exch_starvation = 0;
+ set_bit(ISP_ABORT_NEEDED,
+ &vha->dpc_flags);
+ qla2xxx_wake_dpc(vha);
+ }
+ /* fall through */
+ default:
+ ql_dbg(ql_dbg_disc, vha, 0x20eb,
+ "%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n",
+ __func__, sp->fcport->port_name,
+ fw_status[0], fw_status[1], fw_status[2]);
+
+ fcport->flags &= ~FCF_ASYNC_SENT;
+ set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+ break;
+ }
+ break;
+
+ default:
+ ql_dbg(ql_dbg_disc, vha, 0x20eb,
+ "%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n",
+ __func__, sp->fcport->port_name,
+ fw_status[0], fw_status[1], fw_status[2]);
+
+ sp->fcport->flags &= ~FCF_ASYNC_SENT;
+ set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+ break;
}
e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
--
2.12.0
