From 02904a533a0715e25d03fbbe330c3bbd8753dc76 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Mon, 19 Dec 2022 03:07:45 -0800 Subject: [PATCH] scsi: qla2xxx: Fix erroneous link down commit 3fbc74feb642deb688cc97f76d40b7287ddd4cb1 upstream. If after an adapter reset the appearance of link is not recovered, the devices are not rediscovered. This is result of a race condition between adapter reset (abort_isp) and the topology scan. During adapter reset, the ABORT_ISP_ACTIVE flag is set. Topology scan usually occurred after adapter reset. In this case, the topology scan came earlier than usual where it ran into problem due to ABORT_ISP_ACTIVE flag was still set. kernel: qla2xxx [0000:13:00.0]-1005:1: Cmd 0x6a aborted with timeout since ISP Abort is pending kernel: qla2xxx [0000:13:00.0]-28a0:1: MBX_GET_PORT_NAME failed, No FL Port. kernel: qla2xxx [0000:13:00.0]-286b:1: qla2x00_configure_loop: exiting normally. local port wwpn 51402ec0123d9a80 id 012300) kernel: qla2xxx [0000:13:00.0]-8017:1: ADAPTER RESET SUCCEEDED nexus=1:0:15. Allow adapter reset to complete before any scan can start. Cc: stable@vger.kernel.org Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Reviewed-by: Himanshu Madhani Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/qla2xxx/qla_os.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 4b9815353d76f..636571d3e8209 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -6361,9 +6361,12 @@ qla2x00_do_dpc(void *data) } } loop_resync_check: - if (test_and_clear_bit(LOOP_RESYNC_NEEDED, + if (!qla2x00_reset_active(base_vha) && + test_and_clear_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags)) { - + /* + * Allow abort_isp to complete before moving on to scanning. + */ ql_dbg(ql_dbg_dpc, base_vha, 0x400f, "Loop resync scheduled.\n"); -- 2.39.5