From patchwork Thu Mar 15 07:23:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yixian Liu X-Patchwork-Id: 10283969 X-Patchwork-Delegate: jgg@ziepe.ca Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0948B602C2 for ; Thu, 15 Mar 2018 07:23:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E70E428786 for ; Thu, 15 Mar 2018 07:23:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DBB5F288C5; Thu, 15 Mar 2018 07:23:45 +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=-6.9 required=2.0 tests=BAYES_00,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 4BEA028786 for ; Thu, 15 Mar 2018 07:23:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751551AbeCOHXo (ORCPT ); Thu, 15 Mar 2018 03:23:44 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:6646 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750722AbeCOHXo (ORCPT ); Thu, 15 Mar 2018 03:23:44 -0400 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id E65805A5C431D; Thu, 15 Mar 2018 15:23:28 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.361.1; Thu, 15 Mar 2018 15:23:28 +0800 From: Yixian Liu To: , , CC: Subject: [PATCH for-next] RDMA/hns: Fix cqn type and init resp Date: Thu, 15 Mar 2018 15:23:14 +0800 Message-ID: <1521098594-13305-1-git-send-email-liuyixian@huawei.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] 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 This patch changes the type of cqn from u32 to u64 to keep userspace and kernel consistent, initializes resp both for cq and qp to zeros, and also changes the condition judgment of outlen considering future caps extension according to Jason's suggestions. Fixes: e088a685eae9 (hns: Support rq record doorbell for the user space) Fixes: 9b44703d0a21 (hns: Support cq record doorbell for the user space) Signed-off-by: Yixian Liu Signed-off-by: Lijun Ou Signed-off-by: Wei Hu (Xavier) Signed-off-by: Shaobo Xu --- drivers/infiniband/hw/hns/hns_roce_cq.c | 15 +++++++-------- drivers/infiniband/hw/hns/hns_roce_qp.c | 8 ++++---- include/uapi/rdma/hns-abi.h | 3 +-- 3 files changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c index 462b644..095a910 100644 --- a/drivers/infiniband/hw/hns/hns_roce_cq.c +++ b/drivers/infiniband/hw/hns/hns_roce_cq.c @@ -315,7 +315,7 @@ struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); struct device *dev = hr_dev->dev; struct hns_roce_ib_create_cq ucmd; - struct hns_roce_ib_create_cq_resp resp; + struct hns_roce_ib_create_cq_resp resp = {}; struct hns_roce_cq *hr_cq = NULL; struct hns_roce_uar *uar = NULL; int vector = attr->comp_vector; @@ -389,7 +389,7 @@ struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, } if (context && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && - (udata->outlen == sizeof(resp))) { + (udata->outlen >= sizeof(resp))) { ret = hns_roce_db_map_user(to_hr_ucontext(context), ucmd.db_addr, &hr_cq->db); if (ret) { @@ -413,15 +413,14 @@ struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, hr_cq->cq_depth = cq_entries; if (context) { + resp.cqn = hr_cq->cqn; if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && - (udata->outlen == sizeof(resp))) { + (udata->outlen >= sizeof(resp))) { hr_cq->db_en = 1; - resp.cqn = hr_cq->cqn; resp.cap_flags |= HNS_ROCE_SUPPORT_CQ_RECORD_DB; - ret = ib_copy_to_udata(udata, &resp, sizeof(resp)); - } else - ret = ib_copy_to_udata(udata, &hr_cq->cqn, sizeof(u64)); + } + ret = ib_copy_to_udata(udata, &resp, sizeof(resp)); if (ret) goto err_dbmap; } @@ -430,7 +429,7 @@ struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, err_dbmap: if (context && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && - (udata->outlen == sizeof(resp))) + (udata->outlen >= sizeof(resp))) hns_roce_db_unmap_user(to_hr_ucontext(context), &hr_cq->db); diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index f0ad455..e289a92 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -506,7 +506,7 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev, { struct device *dev = hr_dev->dev; struct hns_roce_ib_create_qp ucmd; - struct hns_roce_ib_create_qp_resp resp; + struct hns_roce_ib_create_qp_resp resp = {}; unsigned long qpn = 0; int ret = 0; u32 page_shift; @@ -614,7 +614,7 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev, } if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && - (udata->outlen == sizeof(resp)) && + (udata->outlen >= sizeof(resp)) && hns_roce_qp_has_rq(init_attr)) { ret = hns_roce_db_map_user( to_hr_ucontext(ib_pd->uobject->context), @@ -730,7 +730,7 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev, else hr_qp->doorbell_qpn = cpu_to_le64(hr_qp->qpn); - if (ib_pd->uobject && (udata->outlen == sizeof(resp)) && + if (ib_pd->uobject && (udata->outlen >= sizeof(resp)) && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB)) { /* indicate kernel supports record db */ @@ -759,7 +759,7 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev, err_wrid: if (ib_pd->uobject) { if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && - (udata->outlen == sizeof(resp)) && + (udata->outlen >= sizeof(resp)) && hns_roce_qp_has_rq(init_attr)) hns_roce_db_unmap_user( to_hr_ucontext(ib_pd->uobject->context), diff --git a/include/uapi/rdma/hns-abi.h b/include/uapi/rdma/hns-abi.h index 38e8f19..f7af7e5 100644 --- a/include/uapi/rdma/hns-abi.h +++ b/include/uapi/rdma/hns-abi.h @@ -42,8 +42,7 @@ struct hns_roce_ib_create_cq { }; struct hns_roce_ib_create_cq_resp { - __u32 cqn; - __u32 reserved; + __u64 cqn; /* Only 32 bits used, 64 for compat */ __u64 cap_flags; };