From patchwork Tue Mar 8 08:20:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nilesh Javali X-Patchwork-Id: 12773260 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 7244FC433F5 for ; Tue, 8 Mar 2022 08:21:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344972AbiCHIWQ (ORCPT ); Tue, 8 Mar 2022 03:22:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344957AbiCHIWI (ORCPT ); Tue, 8 Mar 2022 03:22:08 -0500 Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6C133F331 for ; Tue, 8 Mar 2022 00:21:09 -0800 (PST) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 22881NIB019263 for ; Tue, 8 Mar 2022 00:21:09 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=pfpt0220; bh=zB8tHO0GiroW/dy8x4/vBvmoO+w2NjjfZSN9Ezxemuk=; b=Cq3u7hb9kkZlR+hFfExpjVEJ8W6mC5G/DfzqEKtAk2ZzOv3ji+ejssx8XUL506k6qdYw Ho7vKzqhYCXty/IbFJCuHz4j88pLRjeaSoWv7CwLVcBvJ6WLe5vwO2U3Bsx9cLVkbrvc ncPTSc+m+lUByO0FSNaTg4NOopGW9JYkbNQ7f0sZFtT+Ddb9PeJJv/cZaN5MCc7eIgb9 0kdBSqDHXUL9Vlt1z1melej+75sziipKOjN8lWW0rcJILD6ZfK7J+F1UJXk8pLbLaY4D MCgAADPy555ccTZ010KjGcDqpgmnZ79A1jp+aDfVg4nhH1ozcldyqYd7Ptfe6+kt8Aub jQ== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3ep38p838b-4 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Tue, 08 Mar 2022 00:21:08 -0800 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 8 Mar 2022 00:21:05 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 8 Mar 2022 00:21:05 -0800 Received: from dut1171.mv.qlogic.com (unknown [10.112.88.18]) by maili.marvell.com (Postfix) with ESMTP id C5EBF5B6923; Tue, 8 Mar 2022 00:21:05 -0800 (PST) Received: from dut1171.mv.qlogic.com (localhost [127.0.0.1]) by dut1171.mv.qlogic.com (8.14.7/8.14.7) with ESMTP id 2288L5bf009825; Tue, 8 Mar 2022 00:21:05 -0800 Received: (from root@localhost) by dut1171.mv.qlogic.com (8.14.7/8.14.7/Submit) id 2288L5Cb009824; Tue, 8 Mar 2022 00:21:05 -0800 From: Nilesh Javali To: CC: , Subject: [PATCH 04/13] qla2xxx: Fix missed DMA unmap for NVME ls requests Date: Tue, 8 Mar 2022 00:20:39 -0800 Message-ID: <20220308082048.9774-5-njavali@marvell.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20220308082048.9774-1-njavali@marvell.com> References: <20220308082048.9774-1-njavali@marvell.com> MIME-Version: 1.0 X-Proofpoint-GUID: Pvp2kC2i2qPrSd8iW0T7Jr7X5E3A5A_G X-Proofpoint-ORIG-GUID: Pvp2kC2i2qPrSd8iW0T7Jr7X5E3A5A_G X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-08_03,2022-03-04_01,2022-02-23_01 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Arun Easi At NVME ELS request time, request structure is DMA mapped and never unmapped. Fix this by calling the unmap on ELS completion. Cc: stable@vger.kernel.org Fixes: e84067d74301 ("scsi: qla2xxx: Add FC-NVMe F/W initialization and transport registration") Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Reviewed-by: Himanshu Madhani --- drivers/scsi/qla2xxx/qla_nvme.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) 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; }