From: Quinn Tran qutran@marvell.com
[ Upstream commit ce0ba496dccfc15d3a8866b845864585b5d316ff ]
Login session was stucked on cable pull. When FW is in the middle PRLI PENDING + driver is in Initiator mode, driver fails to check back with FW to see if the PRLI has completed. This patch would re-check with FW again to make sure PRLI would complete before pushing forward with relogin.
Signed-off-by: Quinn Tran qutran@marvell.com Signed-off-by: Himanshu Madhani hmadhani@marvell.com Reviewed-by: Ewan D. Milne emilne@redhat.com Link: https://lore.kernel.org/r/20190830222402.23688-5-hmadhani@marvell.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/qla2xxx/qla_init.c | 23 +++++++++++------------ 1 file changed, 11 insertions(+), 12 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index fb9095179fc59..d4e381f81997b 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -842,6 +842,15 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha, fcport->fw_login_state = current_login_state; fcport->d_id = id; switch (current_login_state) { + case DSC_LS_PRLI_PEND: + /* + * In the middle of PRLI. Let it finish. + * Allow relogin code to recheck state again + * with GNL. Push disc_state back to DELETED + * so GNL can go out again + */ + fcport->disc_state = DSC_DELETED; + break; case DSC_LS_PRLI_COMP: if ((e->prli_svc_param_word_3[0] & BIT_4) == 0) fcport->port_type = FCT_INITIATOR; @@ -1517,7 +1526,7 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport) u64 wwn; u16 sec;
- ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x20d8, + ql_dbg(ql_dbg_disc, vha, 0x20d8, "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d lid %d scan %d\n", __func__, fcport->port_name, fcport->disc_state, fcport->fw_login_state, fcport->login_pause, fcport->flags, @@ -1528,6 +1537,7 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport) return 0;
if ((fcport->loop_id != FC_NO_LOOP_ID) && + qla_dual_mode_enabled(vha) && ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) || (fcport->fw_login_state == DSC_LS_PRLI_PEND))) return 0; @@ -1697,17 +1707,6 @@ void qla24xx_handle_relogin_event(scsi_qla_host_t *vha, fcport->last_login_gen, fcport->login_gen, fcport->flags);
- if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) || - (fcport->fw_login_state == DSC_LS_PRLI_PEND)) - return; - - if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) { - if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) { - set_bit(RELOGIN_NEEDED, &vha->dpc_flags); - return; - } - } - if (fcport->last_rscn_gen != fcport->rscn_gen) { ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gnl\n", __func__, __LINE__, fcport->port_name);