From 861d483dcd1822b360ed186801c889a7da83e80d Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Tue, 11 Sep 2018 10:18:20 -0700 Subject: [PATCH] scsi: qla2xxx: Fix stuck session in PLOGI state On PLOGI complete + RSCN received, driver tries to handle RSCN but failed to reset the session back to the beginning to restart the login process. Instead the session was left in the Plogi complete without moving forward. This patch will push the session state back to the delete state and restart the connection. Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_init.c | 13 +++++++++---- drivers/scsi/qla2xxx/qla_target.c | 4 ---- 2 files changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 0575210aa8f180..bd1afa3063ee2a 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -414,6 +414,7 @@ void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea) return; } else if (ea->sp->gen1 != ea->fcport->rscn_gen) { qla_rscn_replay(fcport); + qlt_schedule_sess_for_deletion(fcport); return; } @@ -538,6 +539,7 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha, if (fcport->last_rscn_gen != fcport->rscn_gen) { qla_rscn_replay(fcport); + qlt_schedule_sess_for_deletion(fcport); return; } else if (fcport->last_login_gen != fcport->login_gen) { ql_dbg(ql_dbg_disc, vha, 0x20e0, @@ -1229,6 +1231,7 @@ void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea) return; } else if (ea->sp->gen1 != fcport->rscn_gen) { qla_rscn_replay(fcport); + qlt_schedule_sess_for_deletion(fcport); return; } @@ -1699,9 +1702,7 @@ void qla_rscn_replay(fc_port_t *fcport) #else qla24xx_post_gpnid_work(fcport->vha, &ea.id); #endif - } else { - qla24xx_post_gnl_work(fcport->vha, fcport); - } + } } static void @@ -1938,7 +1939,7 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea) "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n", __func__, fcport->port_name, fcport->disc_state, fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen, - ea->sp->gen2, fcport->rscn_gen|ea->sp->gen1, + ea->sp->gen1, fcport->rscn_gen, ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]); if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) || @@ -1960,7 +1961,11 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea) set_bit(RELOGIN_NEEDED, &vha->dpc_flags); return; } else if (ea->sp->gen1 != fcport->rscn_gen) { + ql_dbg(ql_dbg_disc, vha, 0x20d3, + "%s %8phC RSCN generation changed\n", + __func__, fcport->port_name); qla_rscn_replay(fcport); + qlt_schedule_sess_for_deletion(fcport); return; } diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index c0b9e0d079c04a..666146a86d10f7 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -1260,9 +1260,6 @@ void qlt_schedule_sess_for_deletion(struct fc_port *sess) break; } - if (sess->deleted == QLA_SESS_DELETED) - sess->logout_on_delete = 0; - spin_lock_irqsave(&sess->vha->work_lock, flags); if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { spin_unlock_irqrestore(&sess->vha->work_lock, flags); @@ -4080,7 +4077,6 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, * Session is already logged out, but we need * to notify initiator, who's not aware of this */ - cmd->sess->logout_on_delete = 0; cmd->sess->send_els_logo = 1; ql_dbg(ql_dbg_disc, vha, 0x20f8, "%s %d %8phC post del sess\n",