From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7364FC433EF for ; Sat, 2 Apr 2022 14:20:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242997AbiDBOWO (ORCPT ); Sat, 2 Apr 2022 10:22:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236168AbiDBOWO (ORCPT ); Sat, 2 Apr 2022 10:22:14 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFB2A12D0BF for ; Sat, 2 Apr 2022 07:20:22 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4AD42615A0 for ; Sat, 2 Apr 2022 14:20:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5943EC340EC; Sat, 2 Apr 2022 14:20:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1648909221; bh=ckI7EInboXYzGr2pzNpBklwN/AnRMvu5wlJPCbSB8kE=; h=Subject:To:Cc:From:Date:From; b=WLfyQ8+sHitGuc2TpBeXKyjs85a1vEiHOOzKmshs9duZ2z17fDaqXNiwvHyPc/fOH 36e5DZFT9FqAUSSjo33EEis5F2+HnHLrayDlewm9Scdi8RUatTcyg/ZpuiXxxgJukk Po1vV4qQGruU8JY4o+LRJqowMBgydXGZXw0EKtu0= Subject: FAILED: patch "[PATCH] scsi: qla2xxx: Fix missed DMA unmap for NVMe ls requests" failed to apply to 4.19-stable tree To: aeasi@marvell.com, himanshu.madhani@oracle.com, martin.petersen@oracle.com, njavali@marvell.com Cc: From: Date: Sat, 02 Apr 2022 16:20:11 +0200 Message-ID: <164890921124141@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.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 . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From c85ab7d9e27a80e48d5b7d7fb2fe2b0fdb2de523 Mon Sep 17 00:00:00 2001 From: Arun Easi 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@vger.kernel.org Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen 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; }