From patchwork Mon Sep 27 12:55:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenpeng Liang X-Patchwork-Id: 12519875 X-Patchwork-Delegate: jgg@ziepe.ca 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B78CCC4332F for ; Mon, 27 Sep 2021 13:00:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9C286610A2 for ; Mon, 27 Sep 2021 13:00:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234505AbhI0NBs (ORCPT ); Mon, 27 Sep 2021 09:01:48 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:12854 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234511AbhI0NBq (ORCPT ); Mon, 27 Sep 2021 09:01:46 -0400 Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4HJ2g70M79z8yqt; Mon, 27 Sep 2021 20:55:31 +0800 (CST) Received: from dggpeml500017.china.huawei.com (7.185.36.243) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Mon, 27 Sep 2021 21:00:07 +0800 Received: from localhost.localdomain (10.67.165.24) by dggpeml500017.china.huawei.com (7.185.36.243) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Mon, 27 Sep 2021 21:00:07 +0800 From: Wenpeng Liang To: , CC: , , Subject: [PATCH for-rc 1/2] RDMA/hns: Fix the size setting error when copying CQE in clean_cq() Date: Mon, 27 Sep 2021 20:55:56 +0800 Message-ID: <20210927125557.15031-2-liangwenpeng@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210927125557.15031-1-liangwenpeng@huawei.com> References: <20210927125557.15031-1-liangwenpeng@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpeml500017.china.huawei.com (7.185.36.243) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org The size of CQE is different for different versions of hardware, so the driver needs to specify the size of CQE explicitly. Fixes: 09a5f210f67e ("RDMA/hns: Add support for CQE in size of 64 Bytes") Signed-off-by: Wenpeng Liang --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index a9c00a2e8ebd..d5f3faa1627a 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -3299,7 +3299,7 @@ static void __hns_roce_v2_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn, dest = get_cqe_v2(hr_cq, (prod_index + nfreed) & hr_cq->ib_cq.cqe); owner_bit = hr_reg_read(dest, CQE_OWNER); - memcpy(dest, cqe, sizeof(*cqe)); + memcpy(dest, cqe, hr_cq->cqe_size); hr_reg_write(dest, CQE_OWNER, owner_bit); } }