From patchwork Fri Jan 25 08:30:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lijun Ou X-Patchwork-Id: 10780751 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DBFB013BF for ; Fri, 25 Jan 2019 07:55:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CD50C2F66B for ; Fri, 25 Jan 2019 07:55:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C17152F67C; Fri, 25 Jan 2019 07:55:50 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7CC762F66B for ; Fri, 25 Jan 2019 07:55:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728905AbfAYHzs (ORCPT ); Fri, 25 Jan 2019 02:55:48 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:55824 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726402AbfAYHzs (ORCPT ); Fri, 25 Jan 2019 02:55:48 -0500 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 31E79D939B672763A916; Fri, 25 Jan 2019 15:55:45 +0800 (CST) Received: from linux-ioko.site (10.71.200.31) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.408.0; Fri, 25 Jan 2019 15:55:35 +0800 From: Lijun Ou To: , CC: , , Subject: [PATCH for-rc 3/8] RDMA/hns: Bugfix for mapping user db Date: Fri, 25 Jan 2019 16:30:25 +0800 Message-ID: <1548405030-124329-4-git-send-email-oulijun@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1548405030-124329-1-git-send-email-oulijun@huawei.com> References: <1548405030-124329-1-git-send-email-oulijun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.71.200.31] X-CFilter-Loop: Reflected Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP when the maximum send wr delivered by the user is zero, qp does not have sq. As a result, we need to remove this scenario when mapping user sq db. Signed-off-by: Lijun Ou --- drivers/infiniband/hw/hns/hns_roce_qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index 54031c5..89dd238 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -517,7 +517,7 @@ static int hns_roce_set_kernel_sq_size(struct hns_roce_dev *hr_dev, static int hns_roce_qp_has_sq(struct ib_qp_init_attr *attr) { - if (attr->qp_type == IB_QPT_XRC_TGT) + if (attr->qp_type == IB_QPT_XRC_TGT || !attr->cap.max_send_wr) return 0; return 1;