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Tue, 9 Feb 2021 00:13:38 +0000 Date: Mon, 8 Feb 2021 20:13:36 -0400 From: Jason Gunthorpe To: Weihang Li CC: , , , Subject: Re: [PATCH v2 for-next] RDMA/hns: Add support of direct wqe Message-ID: <20210209001336.GA1232306@nvidia.com> References: <1611997513-27107-1-git-send-email-liweihang@huawei.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <1611997513-27107-1-git-send-email-liweihang@huawei.com> X-ClientProxiedBy: BL1PR13CA0006.namprd13.prod.outlook.com (2603:10b6:208:256::11) To DM6PR12MB3834.namprd12.prod.outlook.com (2603:10b6:5:14a::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from mlx.ziepe.ca (142.162.115.133) by BL1PR13CA0006.namprd13.prod.outlook.com (2603:10b6:208:256::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3846.11 via Frontend Transport; Tue, 9 Feb 2021 00:13:37 +0000 Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1l9Geu-005AaT-Ir; Mon, 08 Feb 2021 20:13:36 -0400 X-Header: ProcessedBy-CMR-outbound DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1612829622; bh=q6GvOVXdYHpzgZGjgrskMVtJuujTct3KJdG5TtPXYSs=; h=ARC-Seal:ARC-Message-Signature:ARC-Authentication-Results:Date: From:To:CC:Subject:Message-ID:References:Content-Type: Content-Disposition:In-Reply-To:X-ClientProxiedBy:MIME-Version: X-MS-Exchange-MessageSentRepresentingType:X-Header; b=N5aOO3Yzeo8trTDM+NhWuN96QDMVWmdYiofftEGu8NDVyHvaf7JQlqx9KafKeTO6F VhiGYy3bBlWSL8sTCDf0xnKQT20E52mLEmfGJ8OY5wH77+pTOWvBmwEQ+MuH6dvF+F WfM6b7YHQns3fviHCrVlIWl4IrMwYCDiVP3mBa9evEebIQZGoXvMW62rJANv+QSrb4 zYhsgEiEdf1cMEJYlJlp16OYWdAmECFlNbe3tkZDyJGXUFUYklqK9QCOC/UJQrx37q 9cItLXHpYdUIn4sGFFtn87Jfj0jnj1BnoA1GW75JVU5EVD+XIE6WE+fcYK3HbcJp3m HtyQNUtFDQmIg== Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Sat, Jan 30, 2021 at 05:05:13PM +0800, Weihang Li wrote: > From: Yixing Liu > > Direct wqe is a mechanism to fill wqe directly into the hardware. In the > case of light load, the wqe will be filled into pcie bar space of the > hardware, this will reduce one memory access operation and therefore reduce > the latency. > > Signed-off-by: Yixing Liu > Signed-off-by: Lang Cheng > Signed-off-by: Weihang Li > --- > Changes since v1: > * Delete an extra blank line. > * Link: https://patchwork.kernel.org/project/linux-rdma/patch/1611395717-11081-1-git-send-email-liweihang@huawei.com/ > > drivers/infiniband/hw/hns/hns_roce_device.h | 6 ++++ > drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 44 ++++++++++++++++++++++++++++- > drivers/infiniband/hw/hns/hns_roce_hw_v2.h | 13 +++++++++ > 3 files changed, 62 insertions(+), 1 deletion(-) Applied to for-next, thanks Jason