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Mon, 18 Jan 2021 21:01:09 +0000 Date: Mon, 18 Jan 2021 17:01:07 -0400 From: Jason Gunthorpe To: Weihang Li CC: , , , Subject: Re: [PATCH v2 for-next] RDMA/hns: Create CQ with selected CQN for bank load balance Message-ID: <20210118210107.GB797553@nvidia.com> References: <1610008589-35770-1-git-send-email-liweihang@huawei.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <1610008589-35770-1-git-send-email-liweihang@huawei.com> X-ClientProxiedBy: MN2PR18CA0030.namprd18.prod.outlook.com (2603:10b6:208:23c::35) 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 MN2PR18CA0030.namprd18.prod.outlook.com (2603:10b6:208:23c::35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3763.9 via Frontend Transport; Mon, 18 Jan 2021 21:01:09 +0000 Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1l1be7-003LUv-Ud; Mon, 18 Jan 2021 17:01:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1611003677; bh=tz70eeU7BktpAAyS3txpP8CEqJcRvv1tvXY3oYKyMWY=; 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; b=EdtTqsLqxMNEvROuR6GH8kAwNk4+MgKcxS5v2+VwteY4+56y+Nbhb7w8v7Pbabo5m S/U/oV0bvjX3r26BQ5TaDO/0ApmmANn2e6JZRXyMASQ0xpndrBwzPj4feikjmPrITj wEi78ePXjwvbyP1Jn8fQT0Zo69RD7KMi7SRstwO2DNyAHt+3wrUOLAMNo51QFUVmHX SdoEw1/IprlElAWxCUlV6JadsNSAOxBJh3sekKnJ46P/i5EUpq3p+iH1ymQN64Gbwx TBrRwaTbb0IICd6Cz8wE6CpYP00hEFsB9rO4KiVvuv/sr5iYnH8oM+kj1Y9HrEfvds 4ZJqIVBA0R0kg== Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Thu, Jan 07, 2021 at 04:36:29PM +0800, Weihang Li wrote: > From: Yangyang Li > > In order to improve performance by balancing the load between different > banks of cache, the CQC cache is desigend to choose one of 4 banks > according to lower 2 bits of CQN. The hns driver needs to count the number > of CQ on each bank and then assigns the CQ being created to the bank with > the minimum load first. > > Signed-off-by: Yangyang Li > Signed-off-by: Weihang Li > --- > Changes since v1: > - Change GFP_ATOMIC to GFP_KERNEL as there is a chance of memory allocation > failure, and change the spin lock to mutex lock because ida_alloc_range() > may sleep. > - Link: https://patchwork.kernel.org/project/linux-rdma/patch/1609742115-47270-1-git-send-email-liweihang@huawei.com/ > > drivers/infiniband/hw/hns/hns_roce_cq.c | 115 +++++++++++++++++++++++----- > drivers/infiniband/hw/hns/hns_roce_device.h | 10 ++- > drivers/infiniband/hw/hns/hns_roce_main.c | 8 +- > 3 files changed, 105 insertions(+), 28 deletions(-) Applied to for-next, thanks Jason