From a110af851a82fb7f35d75755101b36a0517a6d29 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Tue, 11 Sep 2018 10:18:26 -0700 Subject: [PATCH] scsi: qla2xxx: Fix double increment of switch scan retry count This patch fixes issue when switch command fails, current code increments retry count twice. This results in a smaller number of retries. Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_gs.c | 37 ++++++++++++++++------------------- 1 file changed, 17 insertions(+), 20 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index 84e234c1f302..64ebd790b922 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -3800,7 +3800,7 @@ static int qla2x00_post_gnnft_gpnft_done_work(struct scsi_qla_host *vha, return qla2x00_post_work(vha, e); } -static int qla2x00_post_nvme_gpnft_done_work(struct scsi_qla_host *vha, +static int qla2x00_post_nvme_gpnft_work(struct scsi_qla_host *vha, srb_t *sp, int cmd) { struct qla_work_evt *e; @@ -3930,6 +3930,7 @@ static void qla2x00_async_gpnft_gnnft_sp_done(void *s, int res) "Async done-%s res %x FC4Type %x\n", sp->name, res, sp->gen2); + del_timer(&sp->u.iocb_cmd.timer); sp->rc = res; if (res) { unsigned long flags; @@ -3945,48 +3946,44 @@ static void qla2x00_async_gpnft_gnnft_sp_done(void *s, int res) if (rc) { /* Cleanup here to prevent memory leak */ qla24xx_sp_unmap(vha, sp); - } - spin_lock_irqsave(&vha->work_lock, flags); - vha->scan.scan_flags &= ~SF_SCANNING; - vha->scan.scan_retry++; - spin_unlock_irqrestore(&vha->work_lock, flags); + spin_lock_irqsave(&vha->work_lock, flags); + vha->scan.scan_flags &= ~SF_SCANNING; + vha->scan.scan_retry++; + spin_unlock_irqrestore(&vha->work_lock, flags); - if (vha->scan.scan_retry < MAX_SCAN_RETRIES) { - set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); - set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); - qla2xxx_wake_dpc(vha); - } else { - ql_dbg(ql_dbg_disc, vha, 0xffff, - "Async done-%s rescan failed on all retries.\n", - name); + if (vha->scan.scan_retry < MAX_SCAN_RETRIES) { + set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); + } else { + ql_dbg(ql_dbg_disc, vha, 0xffff, + "Async done-%s rescan failed on all retries.\n", + name); + } } return; } - if (!res) - qla2x00_find_free_fcp_nvme_slot(vha, sp); + qla2x00_find_free_fcp_nvme_slot(vha, sp); if ((fc4_type == FC4_TYPE_FCP_SCSI) && vha->flags.nvme_enabled && cmd == GNN_FT_CMD) { - del_timer(&sp->u.iocb_cmd.timer); spin_lock_irqsave(&vha->work_lock, flags); vha->scan.scan_flags &= ~SF_SCANNING; spin_unlock_irqrestore(&vha->work_lock, flags); sp->rc = res; - rc = qla2x00_post_nvme_gpnft_done_work(vha, sp, QLA_EVT_GPNFT); + rc = qla2x00_post_nvme_gpnft_work(vha, sp, QLA_EVT_GPNFT); if (rc) { qla24xx_sp_unmap(vha, sp); set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); - return; } return; } if (cmd == GPN_FT_CMD) { - del_timer(&sp->u.iocb_cmd.timer); rc = qla2x00_post_gnnft_gpnft_done_work(vha, sp, QLA_EVT_GPNFT_DONE); } else { -- 2.45.2