From: Arun Easi aeasi@marvell.com
stable inclusion from stable-v5.10.110 commit bad77c9a47b45e56ddabb323fc4831b831057c85 bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 8ad4be3d15cf144b5834bdb00d5bbe4050938dc7 upstream.
A device logout in loop topology initiates a device connection teardown which loses the FW device handle. In loop topo, the device handle is not regrabbed leading to device login failures and eventually to loss of the device. Fix this by taking the main login path that does it.
Link: https://lore.kernel.org/r/20220110050218.3958-11-njavali@marvell.com Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani himanshu.madhani@oracle.com Signed-off-by: Arun Easi aeasi@marvell.com Signed-off-by: Nilesh Javali njavali@marvell.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yu Liao liaoyu15@huawei.com Reviewed-by: Wei Li liwei391@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/scsi/qla2xxx/qla_init.c | 15 +++++++++++++++ drivers/scsi/qla2xxx/qla_os.c | 5 +++++ 2 files changed, 20 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 325058b8e03a..8e5dc036956c 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -953,6 +953,9 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha, set_bit(RELOGIN_NEEDED, &vha->dpc_flags); } break; + case ISP_CFG_NL: + qla24xx_fcport_handle_login(vha, fcport); + break; default: break; } @@ -1480,6 +1483,11 @@ static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport) u8 login = 0; int rc;
+ ql_dbg(ql_dbg_disc, vha, 0x307b, + "%s %8phC DS %d LS %d lid %d retries=%d\n", + __func__, fcport->port_name, fcport->disc_state, + fcport->fw_login_state, fcport->loop_id, fcport->login_retry); + if (qla_tgt_mode_enabled(vha)) return;
@@ -5377,6 +5385,13 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha) memcpy(fcport->node_name, new_fcport->node_name, WWN_SIZE); fcport->scan_state = QLA_FCPORT_FOUND; + if (fcport->login_retry == 0) { + fcport->login_retry = vha->hw->login_retry_count; + ql_dbg(ql_dbg_disc, vha, 0x2135, + "Port login retry %8phN, lid 0x%04x retry cnt=%d.\n", + fcport->port_name, fcport->loop_id, + fcport->login_retry); + } found++; break; } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index e7f73a167fbd..4a94054e5585 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -5390,6 +5390,11 @@ void qla2x00_relogin(struct scsi_qla_host *vha) memset(&ea, 0, sizeof(ea)); ea.fcport = fcport; qla24xx_handle_relogin_event(vha, &ea); + } else if (vha->hw->current_topology == + ISP_CFG_NL && + IS_QLA2XXX_MIDTYPE(vha->hw)) { + (void)qla24xx_fcport_handle_login(vha, + fcport); } else if (vha->hw->current_topology == ISP_CFG_NL) { fcport->login_retry--;