From 983f127603fac650fa34ee69db363e4615eaf9e7 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Tue, 5 Nov 2019 07:06:50 -0800 Subject: scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure Current code will send PRLI with FC-NVMe bit set for the targets which support only FCP. This may result into issue with targets which do not understand NVMe and will go into a strange state. This patch would restart the login process by going back to PLOGI state. The PLOGI state will force the target to respond to correct PRLI request. Fixes: c76ae845ea836 ("scsi: qla2xxx: Add error handling for PLOGI ELS passthrough") Cc: stable@vger.kernel.org # 5.4 Link: https://lore.kernel.org/r/20191105150657.8092-2-hmadhani@marvell.com Reviewed-by: Ewan D. Milne Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_init.c | 37 ++++++++----------------------------- 1 file changed, 8 insertions(+), 29 deletions(-) (limited to 'drivers/scsi/qla2xxx/qla_init.c') diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 7cb7545de962..5db8ad832893 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1864,42 +1864,21 @@ qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea) * FCP/NVMe port */ if (NVME_FCP_TARGET(ea->fcport)) { - if (vha->hw->fc4_type_priority == FC4_PRIORITY_NVME) - ea->fcport->fc4_type &= ~FS_FC4TYPE_NVME; - else - ea->fcport->fc4_type &= ~FS_FC4TYPE_FCP; ql_dbg(ql_dbg_disc, vha, 0x2118, "%s %d %8phC post %s prli\n", __func__, __LINE__, ea->fcport->port_name, (ea->fcport->fc4_type & FS_FC4TYPE_NVME) ? "NVMe" : "FCP"); - qla24xx_post_prli_work(vha, ea->fcport); - break; + if (vha->hw->fc4_type_priority == FC4_PRIORITY_NVME) + ea->fcport->fc4_type &= ~FS_FC4TYPE_NVME; + else + ea->fcport->fc4_type &= ~FS_FC4TYPE_FCP; } - /* at this point both PRLI NVME & PRLI FCP failed */ - if (N2N_TOPO(vha->hw)) { - if (ea->fcport->n2n_link_reset_cnt < 3) { - ea->fcport->n2n_link_reset_cnt++; - /* - * remote port is not sending Plogi. Reset - * link to kick start his state machine - */ - set_bit(N2N_LINK_RESET, &vha->dpc_flags); - } else { - ql_log(ql_log_warn, vha, 0x2119, - "%s %d %8phC Unable to reconnect\n", - __func__, __LINE__, ea->fcport->port_name); - } - } else { - /* - * switch connect. login failed. Take connection - * down and allow relogin to retrigger - */ - ea->fcport->flags &= ~FCF_ASYNC_SENT; - ea->fcport->keep_nport_handle = 0; - qlt_schedule_sess_for_deletion(ea->fcport); - } + ea->fcport->flags &= ~FCF_ASYNC_SENT; + ea->fcport->keep_nport_handle = 0; + ea->fcport->logout_on_delete = 1; + qlt_schedule_sess_for_deletion(ea->fcport); break; } } -- cgit