Patch Detail

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{
    "id": 83909,
    "url": "http://patches.dpdk.org/api/patches/83909/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/1605024259-18318-3-git-send-email-viacheslavo@nvidia.com/",
    "project": {
        "id": 1,
        "url": "http://patches.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<1605024259-18318-3-git-send-email-viacheslavo@nvidia.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1605024259-18318-3-git-send-email-viacheslavo@nvidia.com",
    "date": "2020-11-10T16:04:18",
    "name": "[3/4] vdpa/mlx5: fix UAR allocation",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "5ea60fdf85a2870698c04491b9a4f83e731d590a",
    "submitter": {
        "id": 1926,
        "url": "http://patches.dpdk.org/api/people/1926/?format=api",
        "name": "Slava Ovsiienko",
        "email": "viacheslavo@nvidia.com"
    },
    "delegate": {
        "id": 1,
        "url": "http://patches.dpdk.org/api/users/1/?format=api",
        "username": "tmonjalo",
        "first_name": "Thomas",
        "last_name": "Monjalon",
        "email": "thomas@monjalon.net"
    },
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/1605024259-18318-3-git-send-email-viacheslavo@nvidia.com/mbox/",
    "series": [
        {
            "id": 13779,
            "url": "http://patches.dpdk.org/api/series/13779/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=13779",
            "date": "2020-11-10T16:04:17",
            "name": "[1/4] common/mlx5: share UAR allocation routine",
            "version": 1,
            "mbox": "http://patches.dpdk.org/series/13779/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/83909/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/83909/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@inbox.dpdk.org",
        "Delivered-To": "patchwork@inbox.dpdk.org",
        "Received": [
            "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 1CC92A04DD;\n\tTue, 10 Nov 2020 17:05:33 +0100 (CET)",
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 85FD05AA7;\n\tTue, 10 Nov 2020 17:04:36 +0100 (CET)",
            "from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129])\n by dpdk.org (Postfix) with ESMTP id 6F9DA5916\n for <dev@dpdk.org>; Tue, 10 Nov 2020 17:04:28 +0100 (CET)",
            "from Internal Mail-Server by MTLPINE1 (envelope-from\n viacheslavo@nvidia.com) with SMTP; 10 Nov 2020 18:04:24 +0200",
            "from nvidia.com (pegasus12.mtr.labs.mlnx [10.210.17.40])\n by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 0AAG4L95012156;\n Tue, 10 Nov 2020 18:04:24 +0200"
        ],
        "From": "Viacheslav Ovsiienko <viacheslavo@nvidia.com>",
        "To": "dev@dpdk.org",
        "Cc": "rasland@nvidia.com, matan@nvidia.com, stable@dpdk.org",
        "Date": "Tue, 10 Nov 2020 16:04:18 +0000",
        "Message-Id": "<1605024259-18318-3-git-send-email-viacheslavo@nvidia.com>",
        "X-Mailer": "git-send-email 1.8.3.1",
        "In-Reply-To": "<1605024259-18318-1-git-send-email-viacheslavo@nvidia.com>",
        "References": "<1605024259-18318-1-git-send-email-viacheslavo@nvidia.com>",
        "Subject": "[dpdk-dev] [PATCH 3/4] vdpa/mlx5: fix UAR allocation",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
        "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://mails.dpdk.org/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "This patch provides the UAR allocation workaround for the\nhosts where UAR allocation with Write-Combining memory\nmapping type fails.\n\nFixes: 8395927cdfaf (\"vdpa/mlx5: prepare HW queues\")\nCc: stable@dpdk.org\n\nSigned-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>\nAcked-by: Matan Azrad <matan@nvidia.com>\n---\n drivers/vdpa/mlx5/mlx5_vdpa_event.c | 7 ++++++-\n 1 file changed, 6 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/vdpa/mlx5/mlx5_vdpa_event.c b/drivers/vdpa/mlx5/mlx5_vdpa_event.c\nindex 010543c..3aeaeb8 100644\n--- a/drivers/vdpa/mlx5/mlx5_vdpa_event.c\n+++ b/drivers/vdpa/mlx5/mlx5_vdpa_event.c\n@@ -77,7 +77,12 @@\n \t\tDRV_LOG(ERR, \"Failed to change event channel FD.\");\n \t\tgoto error;\n \t}\n-\tpriv->uar = mlx5_glue->devx_alloc_uar(priv->ctx, 0);\n+\t/*\n+\t * This PMD always claims the write memory barrier on UAR\n+\t * registers writings, it is safe to allocate UAR with any\n+\t * memory mapping type.\n+\t */\n+\tpriv->uar = mlx5_devx_alloc_uar(priv->ctx, -1);\n \tif (!priv->uar) {\n \t\trte_errno = errno;\n \t\tDRV_LOG(ERR, \"Failed to allocate UAR.\");\n",
    "prefixes": [
        "3/4"
    ]
}