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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49F4DC43215 for ; Fri, 22 Nov 2019 10:59:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 23E8C2084F for ; Fri, 22 Nov 2019 10:59:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574420385; bh=c86+t2Pau/6rMXsnImuEiH8ZWVcRyQ28R/oiS7P5xNo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vKEp3UydeRZKa3rxjU8yxStBpjKT5B3HfoL64iLeUQb7fverjCsSRdYSWzRFFPTCh +9nq2QLFWgo6uRb/oMemWHWXZSph2pxtiw2ekIh7Y36LHPWXfGTQ7kt04E/nFulvmd Os7Ybf9JrshbMGrRg/o5FwXoYsRESm+fNdROTxGA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730952AbfKVK7n (ORCPT ); Fri, 22 Nov 2019 05:59:43 -0500 Received: from mail.kernel.org ([198.145.29.99]:50984 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730921AbfKVK7l (ORCPT ); Fri, 22 Nov 2019 05:59:41 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BDD0A20721; Fri, 22 Nov 2019 10:59:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574420380; bh=c86+t2Pau/6rMXsnImuEiH8ZWVcRyQ28R/oiS7P5xNo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2ZiwikPT/6IamcqPelHTtFLwvCaOW/E8iaL66lgXObspLeyENz+PQClDsmusxgY37 BkqFzVSiQKrGTQX9YM7ZxLeBiZjofzZ4eFpEzeH40T95qJs9qRhQ+L+1lhttMpK7SO 1KlFo8HkZ4TThZZyk9WAS7cczy6DOVP3+MjKiY2g= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lijun Ou , Jason Gunthorpe , Sasha Levin Subject: [PATCH 4.19 088/220] RDMA/hns: Limit the size of extend sge of sq Date: Fri, 22 Nov 2019 11:27:33 +0100 Message-Id: <20191122100918.939448112@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100912.732983531@linuxfoundation.org> References: <20191122100912.732983531@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lijun Ou [ Upstream commit 05ad5482a5904c416bcfd74afd7193e206e563ce ] The hip08 split two hardware version. The version id are 0x20 and 0x21 according to the PCI revison. The max size of extend sge of sq is limited to 2M for 0x20 version and 8M for 0x21 version. It may be exceeded to 2M according to the algorithm that compute the product of wqe count and extend sge number of every wqe. But the product always less than 8M. Signed-off-by: Lijun Ou Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/hns/hns_roce_device.h | 1 + drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 1 + drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 1 + drivers/infiniband/hw/hns/hns_roce_qp.c | 19 +++++++++++++++++++ 4 files changed, 22 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h index 0bf9949842177..ebfb0998bcedb 100644 --- a/drivers/infiniband/hw/hns/hns_roce_device.h +++ b/drivers/infiniband/hw/hns/hns_roce_device.h @@ -665,6 +665,7 @@ struct hns_roce_caps { u32 max_sq_sg; /* 2 */ u32 max_sq_inline; /* 32 */ u32 max_rq_sg; /* 2 */ + u32 max_extend_sg; int num_qps; /* 256k */ int reserved_qps; u32 max_wqes; /* 16k */ diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 7a7232927b126..9e7923cf85773 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -1194,6 +1194,7 @@ static int hns_roce_v2_profile(struct hns_roce_dev *hr_dev) caps->num_cqs = HNS_ROCE_V2_MAX_CQ_NUM; caps->max_cqes = HNS_ROCE_V2_MAX_CQE_NUM; caps->max_sq_sg = HNS_ROCE_V2_MAX_SQ_SGE_NUM; + caps->max_extend_sg = HNS_ROCE_V2_MAX_EXTEND_SGE_NUM; caps->max_rq_sg = HNS_ROCE_V2_MAX_RQ_SGE_NUM; caps->max_sq_inline = HNS_ROCE_V2_MAX_SQ_INLINE; caps->num_uars = HNS_ROCE_V2_UAR_NUM; diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h index cd276b0b16471..2c3e600db9ce7 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h @@ -50,6 +50,7 @@ #define HNS_ROCE_V2_MAX_CQE_NUM 0x10000 #define HNS_ROCE_V2_MAX_RQ_SGE_NUM 0x100 #define HNS_ROCE_V2_MAX_SQ_SGE_NUM 0xff +#define HNS_ROCE_V2_MAX_EXTEND_SGE_NUM 0x200000 #define HNS_ROCE_V2_MAX_SQ_INLINE 0x20 #define HNS_ROCE_V2_UAR_NUM 256 #define HNS_ROCE_V2_PHY_UAR_NUM 1 diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index cb926ced40219..54d22868ffba5 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -31,6 +31,7 @@ * SOFTWARE. */ +#include #include #include #include @@ -372,6 +373,16 @@ static int hns_roce_set_user_sq_size(struct hns_roce_dev *hr_dev, if (hr_qp->sq.max_gs > 2) hr_qp->sge.sge_cnt = roundup_pow_of_two(hr_qp->sq.wqe_cnt * (hr_qp->sq.max_gs - 2)); + + if ((hr_qp->sq.max_gs > 2) && (hr_dev->pci_dev->revision == 0x20)) { + if (hr_qp->sge.sge_cnt > hr_dev->caps.max_extend_sg) { + dev_err(hr_dev->dev, + "The extended sge cnt error! sge_cnt=%d\n", + hr_qp->sge.sge_cnt); + return -EINVAL; + } + } + hr_qp->sge.sge_shift = 4; /* Get buf size, SQ and RQ are aligned to page_szie */ @@ -465,6 +476,14 @@ static int hns_roce_set_kernel_sq_size(struct hns_roce_dev *hr_dev, hr_qp->sge.sge_shift = 4; } + if ((hr_qp->sq.max_gs > 2) && hr_dev->pci_dev->revision == 0x20) { + if (hr_qp->sge.sge_cnt > hr_dev->caps.max_extend_sg) { + dev_err(dev, "The extended sge cnt error! sge_cnt=%d\n", + hr_qp->sge.sge_cnt); + return -EINVAL; + } + } + /* Get buf size, SQ and RQ are aligned to PAGE_SIZE */ page_size = 1 << (hr_dev->caps.mtt_buf_pg_sz + PAGE_SHIFT); hr_qp->sq.offset = 0; -- 2.20.1