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GET /api/patches/123538/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 123538,
    "url": "http://patches.dpdk.org/api/patches/123538/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/20230209091710.485512-19-maxime.coquelin@redhat.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": "<20230209091710.485512-19-maxime.coquelin@redhat.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20230209091710.485512-19-maxime.coquelin@redhat.com",
    "date": "2023-02-09T09:17:07",
    "name": "[18/21] net/virtio-user: add new callback to enable control queue",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "d4ff6b7a422dceac59e34a327812483de9e4a02e",
    "submitter": {
        "id": 512,
        "url": "http://patches.dpdk.org/api/people/512/?format=api",
        "name": "Maxime Coquelin",
        "email": "maxime.coquelin@redhat.com"
    },
    "delegate": {
        "id": 2642,
        "url": "http://patches.dpdk.org/api/users/2642/?format=api",
        "username": "mcoquelin",
        "first_name": "Maxime",
        "last_name": "Coquelin",
        "email": "maxime.coquelin@redhat.com"
    },
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/20230209091710.485512-19-maxime.coquelin@redhat.com/mbox/",
    "series": [
        {
            "id": 26913,
            "url": "http://patches.dpdk.org/api/series/26913/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=26913",
            "date": "2023-02-09T09:16:49",
            "name": "Add control queue & MQ support to Virtio-user vDPA",
            "version": 1,
            "mbox": "http://patches.dpdk.org/series/26913/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/123538/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/123538/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 mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id A811041C4D;\n\tThu,  9 Feb 2023 10:19:22 +0100 (CET)",
            "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id C7E2142D31;\n\tThu,  9 Feb 2023 10:17:51 +0100 (CET)",
            "from us-smtp-delivery-124.mimecast.com\n (us-smtp-delivery-124.mimecast.com [170.10.129.124])\n by mails.dpdk.org (Postfix) with ESMTP id 73B1A42D93\n for <dev@dpdk.org>; Thu,  9 Feb 2023 10:17:47 +0100 (CET)",
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            "from max-t490s.redhat.com (unknown [10.39.208.26])\n by smtp.corp.redhat.com (Postfix) with ESMTP id 5F1C0492B00;\n Thu,  9 Feb 2023 09:17:42 +0000 (UTC)"
        ],
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1675934267;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=5vEpxqmdjklSYKDU7+tIvdHRtCDnjFNFuzlcM8Dd+qE=;\n b=FOqJ9vCL3Miqd8tU1Ja68j0dcCrJBR1KDDNwqy2N9xn0nH8cUYZLJzKpnTwMd63FGS6bOw\n CZz2VyiHmq87SijnvNtU/pqtN6WGvNoNy74ZyMVowSvTc95PGJ4ZsWv6wMg9Xt6MsAtQ2W\n HLgQwNsrHEB/7qeSFDws8twXLkI1bho=",
        "X-MC-Unique": "sM2vbcxqNHSZhbOUUVTq6g-1",
        "From": "Maxime Coquelin <maxime.coquelin@redhat.com>",
        "To": "dev@dpdk.org, chenbo.xia@intel.com, david.marchand@redhat.com,\n eperezma@redhat.com, stephen@networkplumber.org",
        "Cc": "Maxime Coquelin <maxime.coquelin@redhat.com>",
        "Subject": "[PATCH 18/21] net/virtio-user: add new callback to enable control\n queue",
        "Date": "Thu,  9 Feb 2023 10:17:07 +0100",
        "Message-Id": "<20230209091710.485512-19-maxime.coquelin@redhat.com>",
        "In-Reply-To": "<20230209091710.485512-1-maxime.coquelin@redhat.com>",
        "References": "<20230209091710.485512-1-maxime.coquelin@redhat.com>",
        "MIME-Version": "1.0",
        "X-Scanned-By": "MIMEDefang 3.1 on 10.11.54.9",
        "X-Mimecast-Spam-Score": "0",
        "X-Mimecast-Originator": "redhat.com",
        "Content-Type": "text/plain; charset=UTF-8",
        "Content-Transfer-Encoding": "8bit",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.29",
        "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"
    },
    "content": "This patch introduces a new callback that is to be called\nwhen the backend supports control virtqueue.\n\nImplementation for Vhost-vDPA backend is added in this patch.\n\nSigned-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>\nReviewed-by: Chenbo Xia <chenbo.xia@intel.com>\nAcked-by: Eugenio Pérez <eperezma@redhat.com>\n---\n drivers/net/virtio/virtio_user/vhost.h           |  1 +\n drivers/net/virtio/virtio_user/vhost_vdpa.c      | 12 ++++++++++++\n drivers/net/virtio/virtio_user/virtio_user_dev.c |  3 +++\n 3 files changed, 16 insertions(+)",
    "diff": "diff --git a/drivers/net/virtio/virtio_user/vhost.h b/drivers/net/virtio/virtio_user/vhost.h\nindex dfbf6be033..f817cab77a 100644\n--- a/drivers/net/virtio/virtio_user/vhost.h\n+++ b/drivers/net/virtio/virtio_user/vhost.h\n@@ -82,6 +82,7 @@ struct virtio_user_backend_ops {\n \tint (*get_config)(struct virtio_user_dev *dev, uint8_t *data, uint32_t off, uint32_t len);\n \tint (*set_config)(struct virtio_user_dev *dev, const uint8_t *data, uint32_t off,\n \t\t\tuint32_t len);\n+\tint (*cvq_enable)(struct virtio_user_dev *dev, int enable);\n \tint (*enable_qp)(struct virtio_user_dev *dev, uint16_t pair_idx, int enable);\n \tint (*dma_map)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len);\n \tint (*dma_unmap)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len);\ndiff --git a/drivers/net/virtio/virtio_user/vhost_vdpa.c b/drivers/net/virtio/virtio_user/vhost_vdpa.c\nindex a0897f8dd1..ebf6011769 100644\n--- a/drivers/net/virtio/virtio_user/vhost_vdpa.c\n+++ b/drivers/net/virtio/virtio_user/vhost_vdpa.c\n@@ -564,6 +564,17 @@ vhost_vdpa_destroy(struct virtio_user_dev *dev)\n \treturn 0;\n }\n \n+static int\n+vhost_vdpa_cvq_enable(struct virtio_user_dev *dev, int enable)\n+{\n+\tstruct vhost_vring_state state = {\n+\t\t.index = dev->max_queue_pairs * 2,\n+\t\t.num   = enable,\n+\t};\n+\n+\treturn vhost_vdpa_set_vring_enable(dev, &state);\n+}\n+\n static int\n vhost_vdpa_enable_queue_pair(struct virtio_user_dev *dev,\n \t\t\t       uint16_t pair_idx,\n@@ -629,6 +640,7 @@ struct virtio_user_backend_ops virtio_ops_vdpa = {\n \t.set_status = vhost_vdpa_set_status,\n \t.get_config = vhost_vdpa_get_config,\n \t.set_config = vhost_vdpa_set_config,\n+\t.cvq_enable = vhost_vdpa_cvq_enable,\n \t.enable_qp = vhost_vdpa_enable_queue_pair,\n \t.dma_map = vhost_vdpa_dma_map_batch,\n \t.dma_unmap = vhost_vdpa_dma_unmap_batch,\ndiff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c\nindex 1a5386a3f6..b0d603ee12 100644\n--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c\n+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c\n@@ -767,6 +767,9 @@ virtio_user_handle_mq(struct virtio_user_dev *dev, uint16_t q_pairs)\n \tfor (i = q_pairs; i < dev->max_queue_pairs; ++i)\n \t\tret |= dev->ops->enable_qp(dev, i, 0);\n \n+\tif (dev->scvq)\n+\t\tret |= dev->ops->cvq_enable(dev, 1);\n+\n \tdev->queue_pairs = q_pairs;\n \n \treturn ret;\n",
    "prefixes": [
        "18/21"
    ]
}