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From 970619c33d827965004346d7d3bb145d2a0cd664 Mon Sep 17 00:00:00 2001
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From: Himanshu Madhani <hmadhani@redhat.com>
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Date: Thu, 1 Aug 2019 15:55:16 -0400
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Subject: [PATCH 056/124] [scsi] scsi: qla2xxx: Fix driver unload when FC-NVMe
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LUNs are connected
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Message-id: <20190801155618.12650-57-hmadhani@redhat.com>
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Patchwork-id: 267837
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O-Subject: [RHEL 7.8 e-stor PATCH 056/118] scsi: qla2xxx: Fix driver unload when FC-NVMe LUNs are connected
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Bugzilla: 1729270
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RH-Acked-by: Jarod Wilson <jarod@redhat.com>
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RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
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From: Giridhar Malavali <gmalavali@marvell.com>
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Bugzilla 1729270
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This patch allows driver to unload using "modprobe -r" when FC-NVMe LUNs
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are connected.
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Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
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Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
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Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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(cherry picked from commit b2d1453a45aa8477b1d33ee94a7694146bb8b340)
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Signed-off-by: Himanshu Madhani <hmadhani@redhat.com>
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Signed-off-by: Jan Stancek <jstancek@redhat.com>
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---
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drivers/scsi/qla2xxx/qla_nvme.c | 29 +++++++++++++++++++++++------
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drivers/scsi/qla2xxx/qla_os.c | 6 ++++--
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2 files changed, 27 insertions(+), 8 deletions(-)
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diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
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index 8d4624c9f75b..ae1aae52f59e 100644
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--- a/drivers/scsi/qla2xxx/qla_nvme.c
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+++ b/drivers/scsi/qla2xxx/qla_nvme.c
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@@ -164,12 +164,13 @@ static void qla_nvme_sp_done(void *ptr, int res)
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if (!atomic_dec_and_test(&sp->ref_count))
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return;
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- if (res == QLA_SUCCESS)
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- fd->status = 0;
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- else
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- fd->status = NVME_SC_INTERNAL;
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-
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- fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len;
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+ if (res == QLA_SUCCESS) {
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+ fd->rcv_rsplen = nvme->u.nvme.rsp_pyld_len;
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+ } else {
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+ fd->rcv_rsplen = 0;
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+ fd->transferred_length = 0;
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+ }
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+ fd->status = 0;
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fd->done(fd);
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qla2xxx_rel_qpair_sp(sp->qpair, sp);
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@@ -193,6 +194,22 @@ static void qla_nvme_abort_work(struct work_struct *work)
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if (!ha->flags.fw_started && (fcport && fcport->deleted))
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return;
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+ if (ha->flags.host_shutting_down) {
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+ ql_log(ql_log_info, sp->fcport->vha, 0xffff,
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+ "%s Calling done on sp: %p, type: 0x%x, sp->ref_count: 0x%x\n",
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+ __func__, sp, sp->type, atomic_read(&sp->ref_count));
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+ sp->done(sp, 0);
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+ return;
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+ }
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+
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+ if (atomic_read(&sp->ref_count) == 0) {
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+ WARN_ON(1);
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+ ql_log(ql_log_info, fcport->vha, 0xffff,
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+ "%s: command alredy aborted on sp: %p\n",
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+ __func__, sp);
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+ return;
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+ }
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+
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rval = ha->isp_ops->abort_command(sp);
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ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
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diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
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index c440d5bffefe..1cf427cf1ffe 100644
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--- a/drivers/scsi/qla2xxx/qla_os.c
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+++ b/drivers/scsi/qla2xxx/qla_os.c
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@@ -6835,8 +6835,10 @@ qla2x00_timer(scsi_qla_host_t *vha)
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* FC-NVME
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* see if the active AEN count has changed from what was last reported.
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*/
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- if (!vha->vp_idx && (atomic_read(&ha->nvme_active_aen_cnt) !=
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- ha->nvme_last_rptd_aen) && ha->zio_mode == QLA_ZIO_MODE_6) {
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+ if (!vha->vp_idx &&
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+ (atomic_read(&ha->nvme_active_aen_cnt) != ha->nvme_last_rptd_aen) &&
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+ ha->zio_mode == QLA_ZIO_MODE_6 &&
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+ !ha->flags.host_shutting_down) {
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ql_log(ql_log_info, vha, 0x3002,
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"nvme: Sched: Set ZIO exchange threshold to %d.\n",
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ha->nvme_last_rptd_aen);
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--
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2.13.6
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