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{
    "id": 59928,
    "url": "http://patches.dpdk.org/api/patches/59928/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/20190927105624.16313-8-jin.yu@intel.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": "<20190927105624.16313-8-jin.yu@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20190927105624.16313-8-jin.yu@intel.com",
    "date": "2019-09-27T10:56:21",
    "name": "[v8,07/10] vhost: add APIs for user getting inflight ring",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "35c6a7f0f35e87ff74d25ebc78c77c6a98d725b4",
    "submitter": {
        "id": 1265,
        "url": "http://patches.dpdk.org/api/people/1265/?format=api",
        "name": "Jin Yu",
        "email": "jin.yu@intel.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/20190927105624.16313-8-jin.yu@intel.com/mbox/",
    "series": [
        {
            "id": 6556,
            "url": "http://patches.dpdk.org/api/series/6556/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=6556",
            "date": "2019-09-27T10:56:14",
            "name": "vhost: support inflight share memory protocol feature",
            "version": 8,
            "mbox": "http://patches.dpdk.org/series/6556/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/59928/comments/",
    "check": "fail",
    "checks": "http://patches.dpdk.org/api/patches/59928/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 907674CA7;\n\tFri, 27 Sep 2019 05:12:21 +0200 (CEST)",
            "from mga11.intel.com (mga11.intel.com [192.55.52.93])\n\tby dpdk.org (Postfix) with ESMTP id B1A2D2C39\n\tfor <dev@dpdk.org>; Fri, 27 Sep 2019 05:12:12 +0200 (CEST)",
            "from fmsmga007.fm.intel.com ([10.253.24.52])\n\tby fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t26 Sep 2019 20:12:12 -0700",
            "from storage36.sh.intel.com ([10.67.110.177])\n\tby fmsmga007.fm.intel.com with ESMTP; 26 Sep 2019 20:12:10 -0700"
        ],
        "X-Amp-Result": "SKIPPED(no attachment in message)",
        "X-Amp-File-Uploaded": "False",
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.64,553,1559545200\"; d=\"scan'208\";a=\"190190235\"",
        "From": "Jin Yu <jin.yu@intel.com>",
        "To": "dev@dpdk.org",
        "Cc": "changpeng.liu@intel.com, maxime.coquelin@redhat.com, tiwei.bie@intel.com,\n\tzhihong.wang@intel.com, Jin Yu <jin.yu@intel.com>,\n\tLin Li <lilin24@baidu.com>, Xun Ni <nixun@baidu.com>,\n\tYu Zhang <zhangyu31@baidu.com>",
        "Date": "Fri, 27 Sep 2019 18:56:21 +0800",
        "Message-Id": "<20190927105624.16313-8-jin.yu@intel.com>",
        "X-Mailer": "git-send-email 2.17.2",
        "In-Reply-To": "<20190927105624.16313-1-jin.yu@intel.com>",
        "References": "<20190920120102.29828> <20190927105624.16313-1-jin.yu@intel.com>",
        "Subject": "[dpdk-dev] [PATCH v8 07/10] vhost: add APIs for user getting\n\tinflight ring",
        "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\t<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\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "This patch introduces two APIs. one is for getting inflgiht\nring and the other is for getting base.\n\nSigned-off-by: Lin Li <lilin24@baidu.com>\nSigned-off-by: Xun Ni <nixun@baidu.com>\nSigned-off-by: Yu Zhang <zhangyu31@baidu.com>\nSigned-off-by: Jin Yu <jin.yu@intel.com>\n---\n lib/librte_vhost/rte_vhost.h           | 40 +++++++++++++++++\n lib/librte_vhost/rte_vhost_version.map |  2 +\n lib/librte_vhost/vhost.c               | 59 ++++++++++++++++++++++++++\n 3 files changed, 101 insertions(+)",
    "diff": "diff --git a/lib/librte_vhost/rte_vhost.h b/lib/librte_vhost/rte_vhost.h\nindex f0e86f5e2..8b6435d0d 100644\n--- a/lib/librte_vhost/rte_vhost.h\n+++ b/lib/librte_vhost/rte_vhost.h\n@@ -693,6 +693,23 @@ int rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem);\n int rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx,\n \t\t\t      struct rte_vhost_vring *vring);\n \n+/**\n+ * Get guest inflight vring info, including inflight ring and resubmit list.\n+ *\n+ * @param vid\n+ *  vhost device ID\n+ * @param vring_idx\n+ *  vring index\n+ * @param vring\n+ *  the structure to hold the requested inflight vring info\n+ * @return\n+ *  0 on success, -1 on failure\n+ */\n+__rte_experimental\n+int\n+rte_vhost_get_vhost_ring_inflight(int vid, uint16_t vring_idx,\n+\tstruct rte_vhost_ring_inflight *vring);\n+\n /**\n  * Set split inflight descriptor.\n  *\n@@ -867,6 +884,29 @@ int __rte_experimental\n rte_vhost_get_vring_base(int vid, uint16_t queue_id,\n \t\tuint16_t *last_avail_idx, uint16_t *last_used_idx);\n \n+/**\n+ * Get last_avail/last_used of the vhost virtqueue\n+ *\n+ * This function is designed for the reconnection and it's specific for\n+ * the packed ring as we can get the two parameters from the inflight\n+ * queueregion\n+ *\n+ * @param vid\n+ *  vhost device ID\n+ * @param queue_id\n+ *  vhost queue index\n+ * @param last_avail_idx\n+ *  vhost last_avail_idx to get\n+ * @param last_used_idx\n+ *  vhost last_used_idx to get\n+ * @return\n+ *  0 on success, -1 on failure\n+ */\n+__rte_experimental\n+int\n+rte_vhost_get_vring_base_from_inflight(int vid,\n+\tuint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx);\n+\n /**\n  * Set last_avail/used_idx of the vhost virtqueue\n  *\ndiff --git a/lib/librte_vhost/rte_vhost_version.map b/lib/librte_vhost/rte_vhost_version.map\nindex bc70bfaa5..ce517b127 100644\n--- a/lib/librte_vhost/rte_vhost_version.map\n+++ b/lib/librte_vhost/rte_vhost_version.map\n@@ -93,4 +93,6 @@ EXPERIMENTAL {\n \trte_vhost_set_last_inflight_io_packed;\n \trte_vhost_clr_inflight_desc_split;\n \trte_vhost_clr_inflight_desc_packed;\n+\trte_vhost_get_vhost_ring_inflight;\n+\trte_vhost_get_vring_base_from_inflight;\n };\ndiff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c\nindex 44ae87d4f..95f99ea51 100644\n--- a/lib/librte_vhost/vhost.c\n+++ b/lib/librte_vhost/vhost.c\n@@ -783,6 +783,41 @@ rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx,\n \treturn 0;\n }\n \n+int\n+rte_vhost_get_vhost_ring_inflight(int vid, uint16_t vring_idx,\n+\t\tstruct rte_vhost_ring_inflight *vring)\n+{\n+\tstruct virtio_net *dev;\n+\tstruct vhost_virtqueue *vq;\n+\n+\tdev = get_device(vid);\n+\tif (unlikely(!dev))\n+\t\treturn -1;\n+\n+\tif (vring_idx >= VHOST_MAX_VRING)\n+\t\treturn -1;\n+\n+\tvq = dev->virtqueue[vring_idx];\n+\tif (unlikely(!vq))\n+\t\treturn -1;\n+\n+\tif (vq_is_packed(dev)) {\n+\t\tif (unlikely(!vq->inflight_packed))\n+\t\t\treturn -1;\n+\n+\t\tvring->inflight_packed = vq->inflight_packed;\n+\t} else {\n+\t\tif (unlikely(!vq->inflight_split))\n+\t\t\treturn -1;\n+\n+\t\tvring->inflight_split = vq->inflight_split;\n+\t}\n+\n+\tvring->resubmit_inflight = vq->resubmit_inflight;\n+\n+\treturn 0;\n+}\n+\n int\n rte_vhost_set_inflight_desc_split(int vid, uint16_t vring_idx,\n \tuint16_t idx)\n@@ -1249,6 +1284,30 @@ int rte_vhost_get_vring_base(int vid, uint16_t queue_id,\n \treturn 0;\n }\n \n+int\n+rte_vhost_get_vring_base_from_inflight(int vid,\n+\tuint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx)\n+{\n+\tstruct rte_vhost_inflight_info_packed *inflight_info;\n+\tstruct virtio_net *dev = get_device(vid);\n+\n+\tif (dev == NULL || last_avail_idx == NULL || last_used_idx == NULL)\n+\t\treturn -1;\n+\n+\tif (!vq_is_packed(dev))\n+\t\treturn -1;\n+\n+\tinflight_info = dev->virtqueue[queue_id]->inflight_packed;\n+\tif (!inflight_info)\n+\t\treturn -1;\n+\n+\t*last_avail_idx = (inflight_info->old_used_wrap_counter << 15) |\n+\t\t\t\tinflight_info->old_used_idx;\n+\t*last_used_idx = *last_avail_idx;\n+\n+\treturn 0;\n+}\n+\n int rte_vhost_set_vring_base(int vid, uint16_t queue_id,\n \t\tuint16_t last_avail_idx, uint16_t last_used_idx)\n {\n",
    "prefixes": [
        "v8",
        "07/10"
    ]
}