April 2022 - Linux-stable-mirror

FAILED: patch "[PATCH] scsi: qla2xxx: Fix loss of NVMe namespaces after driver" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From db212f2eb3fb7f546366777e93c8f54614d39269 Mon Sep 17 00:00:00 2001 From: Arun Easi <aeasi(a)marvell.com> Date: Thu, 10 Mar 2022 01:25:54 -0800 Subject: [PATCH] scsi: qla2xxx: Fix loss of NVMe namespaces after driver reload test Driver registration of localport can race when it happens at the remote port discovery time. Fix this by calling the registration under a mutex. Link: https://lore.kernel.org/r/20220310092604.22950-4-njavali@marvell.com Fixes: e84067d74301 ("scsi: qla2xxx: Add FC-NVMe F/W initialization and transport registration") Cc: stable(a)vger.kernel.org Reported-by: Marco Patalano <mpatalan(a)redhat.com> Tested-by: Marco Patalano <mpatalan(a)redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Arun Easi <aeasi(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 5723082d94d6..3bf5cbd754a7 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -782,8 +782,6 @@ int qla_nvme_register_hba(struct scsi_qla_host *vha) ha = vha->hw; tmpl = &qla_nvme_fc_transport; - WARN_ON(vha->nvme_local_port); - if (ql2xnvme_queues < MIN_NVME_HW_QUEUES || ql2xnvme_queues > MAX_NVME_HW_QUEUES) { ql_log(ql_log_warn, vha, 0xfffd, "ql2xnvme_queues=%d is out of range(MIN:%d - MAX:%d). Resetting ql2xnvme_queues to:%d\n", @@ -797,7 +795,7 @@ int qla_nvme_register_hba(struct scsi_qla_host *vha) (uint8_t)(ha->max_qpairs ? ha->max_qpairs : 1)); ql_log(ql_log_info, vha, 0xfffb, - "Number of NVME queues used for this port: %d\n", + "Number of NVME queues used for this port: %d\n", qla_nvme_fc_transport.max_hw_queues); pinfo.node_name = wwn_to_u64(vha->node_name); @@ -805,13 +803,25 @@ int qla_nvme_register_hba(struct scsi_qla_host *vha) pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR; pinfo.port_id = vha->d_id.b24; - ql_log(ql_log_info, vha, 0xffff, - "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", - pinfo.node_name, pinfo.port_name, pinfo.port_id); - qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; - - ret = nvme_fc_register_localport(&pinfo, tmpl, - get_device(&ha->pdev->dev), &vha->nvme_local_port); + mutex_lock(&ha->vport_lock); + /* + * Check again for nvme_local_port to see if any other thread raced + * with this one and finished registration. + */ + if (!vha->nvme_local_port) { + ql_log(ql_log_info, vha, 0xffff, + "register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n", + pinfo.node_name, pinfo.port_name, pinfo.port_id); + qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary; + + ret = nvme_fc_register_localport(&pinfo, tmpl, + get_device(&ha->pdev->dev), + &vha->nvme_local_port); + mutex_unlock(&ha->vport_lock); + } else { + mutex_unlock(&ha->vport_lock); + return 0; + } if (ret) { ql_log(ql_log_warn, vha, 0xffff, "register_localport failed: ret=%x\n", ret);

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix incorrect reporting of task management" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 58ca5999e0367d131de82a75257fbfd5aed0195d Mon Sep 17 00:00:00 2001 From: Quinn Tran <qutran(a)marvell.com> Date: Thu, 10 Mar 2022 01:25:52 -0800 Subject: [PATCH] scsi: qla2xxx: Fix incorrect reporting of task management failure User experienced no task management error while target device is responding with error. The RSP_CODE field in the status IOCB is in little endian. Driver assumes it's big endian and it picked up erroneous data. Convert the data back to big endian as is on the wire. Link: https://lore.kernel.org/r/20220310092604.22950-2-njavali@marvell.com Fixes: faef62d13463 ("[SCSI] qla2xxx: Fix Task Management command asynchronous handling") Cc: stable(a)vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Quinn Tran <qutran(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 092e4b5da65a..21b31d6359c8 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -2498,6 +2498,7 @@ qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk) iocb->u.tmf.data = QLA_FUNCTION_FAILED; } else if ((le16_to_cpu(sts->scsi_status) & SS_RESPONSE_INFO_LEN_VALID)) { + host_to_fcp_swap(sts->data, sizeof(sts->data)); if (le32_to_cpu(sts->rsp_data_len) < 4) { ql_log(ql_log_warn, fcport->vha, 0x503b, "Async-%s error - hdl=%x not enough response(%d).\n",

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix stuck session of PRLI reject" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f3502e2e98a92981601edc3dadf4b0f43c79836b Mon Sep 17 00:00:00 2001 From: Quinn Tran <qutran(a)marvell.com> Date: Thu, 10 Mar 2022 01:26:01 -0800 Subject: [PATCH] scsi: qla2xxx: Fix stuck session of PRLI reject Remove stale recovery code that prevents normal path recovery. Link: https://lore.kernel.org/r/20220310092604.22950-11-njavali@marvell.com Fixes: 1cbc0efcd9be ("scsi: qla2xxx: Fix retry for PRLI RJT with reason of BUSY") Cc: stable(a)vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Quinn Tran <qutran(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 7f5b5811c23d..3f3417a3e891 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2105,13 +2105,6 @@ qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea) qla24xx_post_gpdb_work(vha, ea->fcport, 0); break; default: - if ((ea->iop[0] == LSC_SCODE_ELS_REJECT) && - (ea->iop[1] == 0x50000)) { /* reson 5=busy expl:0x0 */ - set_bit(RELOGIN_NEEDED, &vha->dpc_flags); - ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP; - break; - } - sp = ea->sp; ql_dbg(ql_dbg_disc, vha, 0x2118, "%s %d %8phC priority %s, fc4type %x prev try %s\n",

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix stuck session of PRLI reject" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f3502e2e98a92981601edc3dadf4b0f43c79836b Mon Sep 17 00:00:00 2001 From: Quinn Tran <qutran(a)marvell.com> Date: Thu, 10 Mar 2022 01:26:01 -0800 Subject: [PATCH] scsi: qla2xxx: Fix stuck session of PRLI reject Remove stale recovery code that prevents normal path recovery. Link: https://lore.kernel.org/r/20220310092604.22950-11-njavali@marvell.com Fixes: 1cbc0efcd9be ("scsi: qla2xxx: Fix retry for PRLI RJT with reason of BUSY") Cc: stable(a)vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Quinn Tran <qutran(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 7f5b5811c23d..3f3417a3e891 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2105,13 +2105,6 @@ qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea) qla24xx_post_gpdb_work(vha, ea->fcport, 0); break; default: - if ((ea->iop[0] == LSC_SCODE_ELS_REJECT) && - (ea->iop[1] == 0x50000)) { /* reson 5=busy expl:0x0 */ - set_bit(RELOGIN_NEEDED, &vha->dpc_flags); - ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP; - break; - } - sp = ea->sp; ql_dbg(ql_dbg_disc, vha, 0x2118, "%s %d %8phC priority %s, fc4type %x prev try %s\n",

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix stuck session of PRLI reject" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f3502e2e98a92981601edc3dadf4b0f43c79836b Mon Sep 17 00:00:00 2001 From: Quinn Tran <qutran(a)marvell.com> Date: Thu, 10 Mar 2022 01:26:01 -0800 Subject: [PATCH] scsi: qla2xxx: Fix stuck session of PRLI reject Remove stale recovery code that prevents normal path recovery. Link: https://lore.kernel.org/r/20220310092604.22950-11-njavali@marvell.com Fixes: 1cbc0efcd9be ("scsi: qla2xxx: Fix retry for PRLI RJT with reason of BUSY") Cc: stable(a)vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Quinn Tran <qutran(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 7f5b5811c23d..3f3417a3e891 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2105,13 +2105,6 @@ qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea) qla24xx_post_gpdb_work(vha, ea->fcport, 0); break; default: - if ((ea->iop[0] == LSC_SCODE_ELS_REJECT) && - (ea->iop[1] == 0x50000)) { /* reson 5=busy expl:0x0 */ - set_bit(RELOGIN_NEEDED, &vha->dpc_flags); - ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP; - break; - } - sp = ea->sp; ql_dbg(ql_dbg_disc, vha, 0x2118, "%s %d %8phC priority %s, fc4type %x prev try %s\n",

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix crash during module load unload test" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0972252450f90db56dd5415a20e2aec21a08d036 Mon Sep 17 00:00:00 2001 From: Arun Easi <aeasi(a)marvell.com> Date: Thu, 10 Mar 2022 01:25:56 -0800 Subject: [PATCH] scsi: qla2xxx: Fix crash during module load unload test During purex packet handling the driver was incorrectly freeing a pre-allocated structure. Fix this by skipping that entry. System crashed with the following stack during a module unload test. Call Trace: sbitmap_init_node+0x7f/0x1e0 sbitmap_queue_init_node+0x24/0x150 blk_mq_init_bitmaps+0x3d/0xa0 blk_mq_init_tags+0x68/0x90 blk_mq_alloc_map_and_rqs+0x44/0x120 blk_mq_alloc_set_map_and_rqs+0x63/0x150 blk_mq_alloc_tag_set+0x11b/0x230 scsi_add_host_with_dma.cold+0x3f/0x245 qla2x00_probe_one+0xd5a/0x1b80 [qla2xxx] Call Trace with slub_debug and debug kernel: kasan_report_invalid_free+0x50/0x80 __kasan_slab_free+0x137/0x150 slab_free_freelist_hook+0xc6/0x190 kfree+0xe8/0x2e0 qla2x00_free_device+0x3bb/0x5d0 [qla2xxx] qla2x00_remove_one+0x668/0xcf0 [qla2xxx] Link: https://lore.kernel.org/r/20220310092604.22950-6-njavali@marvell.com Fixes: 62e9dd177732 ("scsi: qla2xxx: Change in PUREX to handle FPIN ELS requests") Cc: stable(a)vger.kernel.org Reported-by: Marco Patalano <mpatalan(a)redhat.com> Tested-by: Marco Patalano <mpatalan(a)redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Arun Easi <aeasi(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 58c83525f006..9c4f2b38b34e 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -3901,6 +3901,8 @@ qla24xx_free_purex_list(struct purex_list *list) spin_lock_irqsave(&list->lock, flags); list_for_each_entry_safe(item, next, &list->head, list) { list_del(&item->list); + if (item == &item->vha->default_item) + continue; kfree(item); } spin_unlock_irqrestore(&list->lock, flags);

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix crash during module load unload test" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0972252450f90db56dd5415a20e2aec21a08d036 Mon Sep 17 00:00:00 2001 From: Arun Easi <aeasi(a)marvell.com> Date: Thu, 10 Mar 2022 01:25:56 -0800 Subject: [PATCH] scsi: qla2xxx: Fix crash during module load unload test During purex packet handling the driver was incorrectly freeing a pre-allocated structure. Fix this by skipping that entry. System crashed with the following stack during a module unload test. Call Trace: sbitmap_init_node+0x7f/0x1e0 sbitmap_queue_init_node+0x24/0x150 blk_mq_init_bitmaps+0x3d/0xa0 blk_mq_init_tags+0x68/0x90 blk_mq_alloc_map_and_rqs+0x44/0x120 blk_mq_alloc_set_map_and_rqs+0x63/0x150 blk_mq_alloc_tag_set+0x11b/0x230 scsi_add_host_with_dma.cold+0x3f/0x245 qla2x00_probe_one+0xd5a/0x1b80 [qla2xxx] Call Trace with slub_debug and debug kernel: kasan_report_invalid_free+0x50/0x80 __kasan_slab_free+0x137/0x150 slab_free_freelist_hook+0xc6/0x190 kfree+0xe8/0x2e0 qla2x00_free_device+0x3bb/0x5d0 [qla2xxx] qla2x00_remove_one+0x668/0xcf0 [qla2xxx] Link: https://lore.kernel.org/r/20220310092604.22950-6-njavali@marvell.com Fixes: 62e9dd177732 ("scsi: qla2xxx: Change in PUREX to handle FPIN ELS requests") Cc: stable(a)vger.kernel.org Reported-by: Marco Patalano <mpatalan(a)redhat.com> Tested-by: Marco Patalano <mpatalan(a)redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Arun Easi <aeasi(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 58c83525f006..9c4f2b38b34e 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -3901,6 +3901,8 @@ qla24xx_free_purex_list(struct purex_list *list) spin_lock_irqsave(&list->lock, flags); list_for_each_entry_safe(item, next, &list->head, list) { list_del(&item->list); + if (item == &item->vha->default_item) + continue; kfree(item); } spin_unlock_irqrestore(&list->lock, flags);

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix missed DMA unmap for NVMe ls requests" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From c85ab7d9e27a80e48d5b7d7fb2fe2b0fdb2de523 Mon Sep 17 00:00:00 2001 From: Arun Easi <aeasi(a)marvell.com> Date: Thu, 10 Mar 2022 01:25:55 -0800 Subject: [PATCH] scsi: qla2xxx: Fix missed DMA unmap for NVMe ls requests At NVMe ELS request time, request structure is DMA mapped and never unmapped. Fix this by calling the unmap on ELS completion. Link: https://lore.kernel.org/r/20220310092604.22950-5-njavali@marvell.com Fixes: e84067d74301 ("scsi: qla2xxx: Add FC-NVMe F/W initialization and transport registration") Cc: stable(a)vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Arun Easi <aeasi(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 3bf5cbd754a7..794a95b2e3b4 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -175,6 +175,18 @@ static void qla_nvme_release_fcp_cmd_kref(struct kref *kref) qla2xxx_rel_qpair_sp(sp->qpair, sp); } +static void qla_nvme_ls_unmap(struct srb *sp, struct nvmefc_ls_req *fd) +{ + if (sp->flags & SRB_DMA_VALID) { + struct srb_iocb *nvme = &sp->u.iocb_cmd; + struct qla_hw_data *ha = sp->fcport->vha->hw; + + dma_unmap_single(&ha->pdev->dev, nvme->u.nvme.cmd_dma, + fd->rqstlen, DMA_TO_DEVICE); + sp->flags &= ~SRB_DMA_VALID; + } +} + static void qla_nvme_release_ls_cmd_kref(struct kref *kref) { struct srb *sp = container_of(kref, struct srb, cmd_kref); @@ -191,6 +203,8 @@ static void qla_nvme_release_ls_cmd_kref(struct kref *kref) spin_unlock_irqrestore(&priv->cmd_lock, flags); fd = priv->fd; + + qla_nvme_ls_unmap(sp, fd); fd->done(fd, priv->comp_status); out: qla2x00_rel_sp(sp); @@ -361,6 +375,8 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, fd->rqstlen, DMA_TO_DEVICE); + sp->flags |= SRB_DMA_VALID; + rval = qla2x00_start_sp(sp); if (rval != QLA_SUCCESS) { ql_log(ql_log_warn, vha, 0x700e, @@ -368,6 +384,7 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, wake_up(&sp->nvme_ls_waitq); sp->priv = NULL; priv->sp = NULL; + qla_nvme_ls_unmap(sp, fd); qla2x00_rel_sp(sp); return rval; }

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix missed DMA unmap for NVMe ls requests" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From c85ab7d9e27a80e48d5b7d7fb2fe2b0fdb2de523 Mon Sep 17 00:00:00 2001 From: Arun Easi <aeasi(a)marvell.com> Date: Thu, 10 Mar 2022 01:25:55 -0800 Subject: [PATCH] scsi: qla2xxx: Fix missed DMA unmap for NVMe ls requests At NVMe ELS request time, request structure is DMA mapped and never unmapped. Fix this by calling the unmap on ELS completion. Link: https://lore.kernel.org/r/20220310092604.22950-5-njavali@marvell.com Fixes: e84067d74301 ("scsi: qla2xxx: Add FC-NVMe F/W initialization and transport registration") Cc: stable(a)vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Arun Easi <aeasi(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 3bf5cbd754a7..794a95b2e3b4 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -175,6 +175,18 @@ static void qla_nvme_release_fcp_cmd_kref(struct kref *kref) qla2xxx_rel_qpair_sp(sp->qpair, sp); } +static void qla_nvme_ls_unmap(struct srb *sp, struct nvmefc_ls_req *fd) +{ + if (sp->flags & SRB_DMA_VALID) { + struct srb_iocb *nvme = &sp->u.iocb_cmd; + struct qla_hw_data *ha = sp->fcport->vha->hw; + + dma_unmap_single(&ha->pdev->dev, nvme->u.nvme.cmd_dma, + fd->rqstlen, DMA_TO_DEVICE); + sp->flags &= ~SRB_DMA_VALID; + } +} + static void qla_nvme_release_ls_cmd_kref(struct kref *kref) { struct srb *sp = container_of(kref, struct srb, cmd_kref); @@ -191,6 +203,8 @@ static void qla_nvme_release_ls_cmd_kref(struct kref *kref) spin_unlock_irqrestore(&priv->cmd_lock, flags); fd = priv->fd; + + qla_nvme_ls_unmap(sp, fd); fd->done(fd, priv->comp_status); out: qla2x00_rel_sp(sp); @@ -361,6 +375,8 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma, fd->rqstlen, DMA_TO_DEVICE); + sp->flags |= SRB_DMA_VALID; + rval = qla2x00_start_sp(sp); if (rval != QLA_SUCCESS) { ql_log(ql_log_warn, vha, 0x700e, @@ -368,6 +384,7 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, wake_up(&sp->nvme_ls_waitq); sp->priv = NULL; priv->sp = NULL; + qla_nvme_ls_unmap(sp, fd); qla2x00_rel_sp(sp); return rval; }

2 years, 9 months

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FAILED: patch "[PATCH] scsi: qla2xxx: Fix laggy FC remote port session recovery" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 713b415726f100f6644971e75ebfe1edbef1a390 Mon Sep 17 00:00:00 2001 From: Quinn Tran <qutran(a)marvell.com> Date: Thu, 10 Mar 2022 01:25:59 -0800 Subject: [PATCH] scsi: qla2xxx: Fix laggy FC remote port session recovery For session recovery, driver relies on the dpc thread to initiate certain operations. The dpc thread runs exclusively without the Mailbox interface being occupied. A recent code change for heartbeat check via mailbox cmd 0 is preventing the dpc thread from carrying out its operation. This patch allows the higher priority error recovery to run first before running the lower priority heartbeat check. Link: https://lore.kernel.org/r/20220310092604.22950-9-njavali@marvell.com Fixes: d94d8158e184 ("scsi: qla2xxx: Add heartbeat check") Cc: stable(a)vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani(a)oracle.com> Signed-off-by: Quinn Tran <qutran(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 8aa1cccebab1..d76c0e9f114c 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -4624,6 +4624,7 @@ struct qla_hw_data { struct workqueue_struct *wq; struct work_struct heartbeat_work; struct qlfc_fw fw_buf; + unsigned long last_heartbeat_run_jiffies; /* FCP_CMND priority support */ struct qla_fcp_prio_cfg *fcp_prio_cfg; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 9c4f2b38b34e..81451c11eef4 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -7215,7 +7215,7 @@ static bool qla_do_heartbeat(struct scsi_qla_host *vha) return do_heartbeat; } -static void qla_heart_beat(struct scsi_qla_host *vha) +static void qla_heart_beat(struct scsi_qla_host *vha, u16 dpc_started) { struct qla_hw_data *ha = vha->hw; @@ -7225,8 +7225,19 @@ static void qla_heart_beat(struct scsi_qla_host *vha) if (vha->hw->flags.eeh_busy || qla2x00_chip_is_down(vha)) return; - if (qla_do_heartbeat(vha)) + /* + * dpc thread cannot run if heartbeat is running at the same time. + * We also do not want to starve heartbeat task. Therefore, do + * heartbeat task at least once every 5 seconds. + */ + if (dpc_started && + time_before(jiffies, ha->last_heartbeat_run_jiffies + 5 * HZ)) + return; + + if (qla_do_heartbeat(vha)) { + ha->last_heartbeat_run_jiffies = jiffies; queue_work(ha->wq, &ha->heartbeat_work); + } } /************************************************************************** @@ -7417,6 +7428,8 @@ qla2x00_timer(struct timer_list *t) start_dpc++; } + /* borrowing w to signify dpc will run */ + w = 0; /* Schedule the DPC routine if needed */ if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) || test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) || @@ -7449,9 +7462,10 @@ qla2x00_timer(struct timer_list *t) test_bit(RELOGIN_NEEDED, &vha->dpc_flags), test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)); qla2xxx_wake_dpc(vha); + w = 1; } - qla_heart_beat(vha); + qla_heart_beat(vha, w); qla2x00_restart_timer(vha, WATCH_INTERVAL); }

2 years, 9 months

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