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GET /api/patches/96314/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 96314,
    "url": "http://patchwork.dpdk.org/api/patches/96314/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20210727073121.895620-3-dkozlyuk@nvidia.com/",
    "project": {
        "id": 1,
        "url": "http://patchwork.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": "<20210727073121.895620-3-dkozlyuk@nvidia.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20210727073121.895620-3-dkozlyuk@nvidia.com",
    "date": "2021-07-27T07:31:18",
    "name": "[2/4] net/mlx5: create drop queue using DevX",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "0940259caf32af9d88b8e960710de8e8214162ab",
    "submitter": {
        "id": 2248,
        "url": "http://patchwork.dpdk.org/api/people/2248/?format=api",
        "name": "Dmitry Kozlyuk",
        "email": "dkozlyuk@nvidia.com"
    },
    "delegate": {
        "id": 3961,
        "url": "http://patchwork.dpdk.org/api/users/3961/?format=api",
        "username": "arybchenko",
        "first_name": "Andrew",
        "last_name": "Rybchenko",
        "email": "andrew.rybchenko@oktetlabs.ru"
    },
    "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20210727073121.895620-3-dkozlyuk@nvidia.com/mbox/",
    "series": [
        {
            "id": 18009,
            "url": "http://patchwork.dpdk.org/api/series/18009/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=18009",
            "date": "2021-07-27T07:31:16",
            "name": "net/mlx5: keep indirect actions across port restart",
            "version": 1,
            "mbox": "http://patchwork.dpdk.org/series/18009/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/patches/96314/comments/",
    "check": "success",
    "checks": "http://patchwork.dpdk.org/api/patches/96314/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "Dmitry Kozlyuk <dkozlyuk@nvidia.com>",
        "To": "<dev@dpdk.org>",
        "CC": "David Marchand <david.marchand@redhat.com>, <stable@dpdk.org>, Matan Azrad\n <matan@nvidia.com>, Shahaf Shuler <shahafs@nvidia.com>,\n Viacheslav Ovsiienko <viacheslavo@nvidia.com>",
        "Date": "Tue, 27 Jul 2021 10:31:18 +0300",
        "Message-ID": "<20210727073121.895620-3-dkozlyuk@nvidia.com>",
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        "Subject": "[dpdk-dev] [PATCH 2/4] net/mlx5: create drop queue using DevX",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Drop queue creation and destruction were not implemented for DevX\nflow engine and Verbs engine methods were used as a workaround.\nImplement these methods for DevX so that there is a valid queue ID\nthat can be used regardless of queue configuration via API.\n\nCc: stable@dpdk.org\n\nSigned-off-by: Dmitry Kozlyuk <dkozlyuk@nvidia.com>\nAcked-by: Matan Azrad <matan@nvidia.com>\n---\n drivers/net/mlx5/linux/mlx5_os.c |   4 -\n drivers/net/mlx5/mlx5_devx.c     | 204 ++++++++++++++++++++++++++-----\n 2 files changed, 176 insertions(+), 32 deletions(-)",
    "diff": "diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c\nindex 671dfface9..791024c2c6 100644\n--- a/drivers/net/mlx5/linux/mlx5_os.c\n+++ b/drivers/net/mlx5/linux/mlx5_os.c\n@@ -1756,10 +1756,6 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,\n \t}\n \tif (config->devx && config->dv_flow_en && config->dest_tir) {\n \t\tpriv->obj_ops = devx_obj_ops;\n-\t\tpriv->obj_ops.drop_action_create =\n-\t\t\t\t\t\tibv_obj_ops.drop_action_create;\n-\t\tpriv->obj_ops.drop_action_destroy =\n-\t\t\t\t\t\tibv_obj_ops.drop_action_destroy;\n #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET\n \t\tpriv->obj_ops.txq_obj_modify = ibv_obj_ops.txq_obj_modify;\n #else\ndiff --git a/drivers/net/mlx5/mlx5_devx.c b/drivers/net/mlx5/mlx5_devx.c\nindex a1db53577a..447d6bafb9 100644\n--- a/drivers/net/mlx5/mlx5_devx.c\n+++ b/drivers/net/mlx5/mlx5_devx.c\n@@ -226,17 +226,17 @@ mlx5_rx_devx_get_event(struct mlx5_rxq_obj *rxq_obj)\n  *\n  * @param dev\n  *   Pointer to Ethernet device.\n- * @param idx\n- *   Queue index in DPDK Rx queue array.\n+ * @param rxq_data\n+ *   RX queue data.\n  *\n  * @return\n  *   0 on success, a negative errno value otherwise and rte_errno is set.\n  */\n static int\n-mlx5_rxq_create_devx_rq_resources(struct rte_eth_dev *dev, uint16_t idx)\n+mlx5_rxq_create_devx_rq_resources(struct rte_eth_dev *dev,\n+\t\t\t\t  struct mlx5_rxq_data *rxq_data)\n {\n \tstruct mlx5_priv *priv = dev->data->dev_private;\n-\tstruct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx];\n \tstruct mlx5_rxq_ctrl *rxq_ctrl =\n \t\tcontainer_of(rxq_data, struct mlx5_rxq_ctrl, rxq);\n \tstruct mlx5_devx_create_rq_attr rq_attr = { 0 };\n@@ -289,20 +289,20 @@ mlx5_rxq_create_devx_rq_resources(struct rte_eth_dev *dev, uint16_t idx)\n  *\n  * @param dev\n  *   Pointer to Ethernet device.\n- * @param idx\n- *   Queue index in DPDK Rx queue array.\n+ * @param rxq_data\n+ *   RX queue data.\n  *\n  * @return\n  *   0 on success, a negative errno value otherwise and rte_errno is set.\n  */\n static int\n-mlx5_rxq_create_devx_cq_resources(struct rte_eth_dev *dev, uint16_t idx)\n+mlx5_rxq_create_devx_cq_resources(struct rte_eth_dev *dev,\n+\t\t\t\t  struct mlx5_rxq_data *rxq_data)\n {\n \tstruct mlx5_devx_cq *cq_obj = 0;\n \tstruct mlx5_devx_cq_attr cq_attr = { 0 };\n \tstruct mlx5_priv *priv = dev->data->dev_private;\n \tstruct mlx5_dev_ctx_shared *sh = priv->sh;\n-\tstruct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx];\n \tstruct mlx5_rxq_ctrl *rxq_ctrl =\n \t\tcontainer_of(rxq_data, struct mlx5_rxq_ctrl, rxq);\n \tunsigned int cqe_n = mlx5_rxq_cqe_num(rxq_data);\n@@ -497,13 +497,13 @@ mlx5_rxq_devx_obj_new(struct rte_eth_dev *dev, uint16_t idx)\n \t\ttmpl->fd = mlx5_os_get_devx_channel_fd(tmpl->devx_channel);\n \t}\n \t/* Create CQ using DevX API. */\n-\tret = mlx5_rxq_create_devx_cq_resources(dev, idx);\n+\tret = mlx5_rxq_create_devx_cq_resources(dev, rxq_data);\n \tif (ret) {\n \t\tDRV_LOG(ERR, \"Failed to create CQ.\");\n \t\tgoto error;\n \t}\n \t/* Create RQ using DevX API. */\n-\tret = mlx5_rxq_create_devx_rq_resources(dev, idx);\n+\tret = mlx5_rxq_create_devx_rq_resources(dev, rxq_data);\n \tif (ret) {\n \t\tDRV_LOG(ERR, \"Port %u Rx queue %u RQ creation failure.\",\n \t\t\tdev->data->port_id, idx);\n@@ -536,6 +536,11 @@ mlx5_rxq_devx_obj_new(struct rte_eth_dev *dev, uint16_t idx)\n  *   Pointer to Ethernet device.\n  * @param log_n\n  *   Log of number of queues in the array.\n+ * @param queues\n+ *   List of RX queue indices or NULL, in which case\n+ *   the attribute will be filled by drop queue ID.\n+ * @param queues_n\n+ *   Size of @p queues array or 0 if it is NULL.\n  * @param ind_tbl\n  *   DevX indirection table object.\n  *\n@@ -563,6 +568,11 @@ mlx5_devx_ind_table_create_rqt_attr(struct rte_eth_dev *dev,\n \t}\n \trqt_attr->rqt_max_size = priv->config.ind_table_max_size;\n \trqt_attr->rqt_actual_size = rqt_n;\n+\tif (queues == NULL) {\n+\t\tfor (i = 0; i < rqt_n; i++)\n+\t\t\trqt_attr->rq_list[i] = priv->drop_queue.rxq->rq->id;\n+\t\treturn rqt_attr;\n+\t}\n \tfor (i = 0; i != queues_n; ++i) {\n \t\tstruct mlx5_rxq_data *rxq = (*priv->rxqs)[queues[i]];\n \t\tstruct mlx5_rxq_ctrl *rxq_ctrl =\n@@ -670,7 +680,8 @@ mlx5_devx_ind_table_destroy(struct mlx5_ind_table_obj *ind_tbl)\n  * @param[in] hash_fields\n  *   Verbs protocol hash field to make the RSS on.\n  * @param[in] ind_tbl\n- *   Indirection table for TIR.\n+ *   Indirection table for TIR. If table queues array is NULL,\n+ *   a TIR for drop queue is assumed.\n  * @param[in] tunnel\n  *   Tunnel type.\n  * @param[out] tir_attr\n@@ -686,19 +697,27 @@ mlx5_devx_tir_attr_set(struct rte_eth_dev *dev, const uint8_t *rss_key,\n \t\t       int tunnel, struct mlx5_devx_tir_attr *tir_attr)\n {\n \tstruct mlx5_priv *priv = dev->data->dev_private;\n-\tstruct mlx5_rxq_data *rxq_data = (*priv->rxqs)[ind_tbl->queues[0]];\n-\tstruct mlx5_rxq_ctrl *rxq_ctrl =\n-\t\tcontainer_of(rxq_data, struct mlx5_rxq_ctrl, rxq);\n-\tenum mlx5_rxq_type rxq_obj_type = rxq_ctrl->type;\n+\tenum mlx5_rxq_type rxq_obj_type;\n \tbool lro = true;\n \tuint32_t i;\n \n-\t/* Enable TIR LRO only if all the queues were configured for. */\n-\tfor (i = 0; i < ind_tbl->queues_n; ++i) {\n-\t\tif (!(*priv->rxqs)[ind_tbl->queues[i]]->lro) {\n-\t\t\tlro = false;\n-\t\t\tbreak;\n+\t/* NULL queues designate drop queue. */\n+\tif (ind_tbl->queues != NULL) {\n+\t\tstruct mlx5_rxq_data *rxq_data =\n+\t\t\t\t\t(*priv->rxqs)[ind_tbl->queues[0]];\n+\t\tstruct mlx5_rxq_ctrl *rxq_ctrl =\n+\t\t\tcontainer_of(rxq_data, struct mlx5_rxq_ctrl, rxq);\n+\t\trxq_obj_type = rxq_ctrl->type;\n+\n+\t\t/* Enable TIR LRO only if all the queues were configured for. */\n+\t\tfor (i = 0; i < ind_tbl->queues_n; ++i) {\n+\t\t\tif (!(*priv->rxqs)[ind_tbl->queues[i]]->lro) {\n+\t\t\t\tlro = false;\n+\t\t\t\tbreak;\n+\t\t\t}\n \t\t}\n+\t} else {\n+\t\trxq_obj_type = priv->drop_queue.rxq->rxq_ctrl->type;\n \t}\n \tmemset(tir_attr, 0, sizeof(*tir_attr));\n \ttir_attr->disp_type = MLX5_TIRC_DISP_TYPE_INDIRECT;\n@@ -857,7 +876,7 @@ mlx5_devx_hrxq_modify(struct rte_eth_dev *dev, struct mlx5_hrxq *hrxq,\n }\n \n /**\n- * Create a DevX drop action for Rx Hash queue.\n+ * Create a DevX drop Rx queue.\n  *\n  * @param dev\n  *   Pointer to Ethernet device.\n@@ -866,14 +885,99 @@ mlx5_devx_hrxq_modify(struct rte_eth_dev *dev, struct mlx5_hrxq *hrxq,\n  *   0 on success, a negative errno value otherwise and rte_errno is set.\n  */\n static int\n-mlx5_devx_drop_action_create(struct rte_eth_dev *dev)\n+mlx5_rxq_devx_obj_drop_create(struct rte_eth_dev *dev)\n {\n-\t(void)dev;\n-\tDRV_LOG(ERR, \"DevX drop action is not supported yet.\");\n-\trte_errno = ENOTSUP;\n+\tstruct mlx5_priv *priv = dev->data->dev_private;\n+\tint socket_id = dev->device->numa_node;\n+\tstruct mlx5_rxq_ctrl *rxq_ctrl;\n+\tstruct mlx5_rxq_data *rxq_data;\n+\tstruct mlx5_rxq_obj *rxq = NULL;\n+\tint ret;\n+\n+\t/*\n+\t * Initialize dummy control structures.\n+\t * They are required to hold pointers for cleanup\n+\t * and are only accessible via drop queue DevX objects.\n+\t */\n+\trxq_ctrl = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*rxq_ctrl),\n+\t\t\t       0, socket_id);\n+\tif (rxq_ctrl == NULL) {\n+\t\tDRV_LOG(ERR, \"Port %u could not allocate drop queue control\",\n+\t\t\tdev->data->port_id);\n+\t\trte_errno = ENOMEM;\n+\t\tgoto error;\n+\t}\n+\trxq = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*rxq), 0, socket_id);\n+\tif (rxq == NULL) {\n+\t\tDRV_LOG(ERR, \"Port %u could not allocate drop queue object\",\n+\t\t\tdev->data->port_id);\n+\t\trte_errno = ENOMEM;\n+\t\tgoto error;\n+\t}\n+\trxq->rxq_ctrl = rxq_ctrl;\n+\trxq_ctrl->type = MLX5_RXQ_TYPE_STANDARD;\n+\trxq_ctrl->priv = priv;\n+\trxq_ctrl->obj = rxq;\n+\trxq_data = &rxq_ctrl->rxq;\n+\t/* Create CQ using DevX API. */\n+\tret = mlx5_rxq_create_devx_cq_resources(dev, rxq_data);\n+\tif (ret != 0) {\n+\t\tDRV_LOG(ERR, \"Port %u drop queue CQ creation failed.\",\n+\t\t\tdev->data->port_id);\n+\t\tgoto error;\n+\t}\n+\t/* Create RQ using DevX API. */\n+\tret = mlx5_rxq_create_devx_rq_resources(dev, rxq_data);\n+\tif (ret != 0) {\n+\t\tDRV_LOG(ERR, \"Port %u drop queue RQ creation failed.\",\n+\t\t\tdev->data->port_id);\n+\t\trte_errno = ENOMEM;\n+\t\tgoto error;\n+\t}\n+\t/* Change queue state to ready. */\n+\tret = mlx5_devx_modify_rq(rxq, MLX5_RXQ_MOD_RST2RDY);\n+\tif (ret != 0)\n+\t\tgoto error;\n+\t/* Initialize drop queue. */\n+\tpriv->drop_queue.rxq = rxq;\n+\treturn 0;\n+error:\n+\tret = rte_errno; /* Save rte_errno before cleanup. */\n+\tif (rxq != NULL) {\n+\t\tif (rxq->rq_obj.rq != NULL)\n+\t\t\tmlx5_devx_rq_destroy(&rxq->rq_obj);\n+\t\tif (rxq->cq_obj.cq != NULL)\n+\t\t\tmlx5_devx_cq_destroy(&rxq->cq_obj);\n+\t\tif (rxq->devx_channel)\n+\t\t\tmlx5_os_devx_destroy_event_channel\n+\t\t\t\t\t\t\t(rxq->devx_channel);\n+\t\tmlx5_free(rxq);\n+\t}\n+\tif (rxq_ctrl != NULL)\n+\t\tmlx5_free(rxq_ctrl);\n+\trte_errno = ret; /* Restore rte_errno. */\n \treturn -rte_errno;\n }\n \n+/**\n+ * Release drop Rx queue resources.\n+ *\n+ * @param dev\n+ *   Pointer to Ethernet device.\n+ */\n+static void\n+mlx5_rxq_devx_obj_drop_release(struct rte_eth_dev *dev)\n+{\n+\tstruct mlx5_priv *priv = dev->data->dev_private;\n+\tstruct mlx5_rxq_obj *rxq = priv->drop_queue.rxq;\n+\tstruct mlx5_rxq_ctrl *rxq_ctrl = rxq->rxq_ctrl;\n+\n+\tmlx5_rxq_devx_obj_release(rxq);\n+\tmlx5_free(rxq);\n+\tmlx5_free(rxq_ctrl);\n+\tpriv->drop_queue.rxq = NULL;\n+}\n+\n /**\n  * Release a drop hash Rx queue.\n  *\n@@ -883,9 +987,53 @@ mlx5_devx_drop_action_create(struct rte_eth_dev *dev)\n static void\n mlx5_devx_drop_action_destroy(struct rte_eth_dev *dev)\n {\n-\t(void)dev;\n-\tDRV_LOG(ERR, \"DevX drop action is not supported yet.\");\n-\trte_errno = ENOTSUP;\n+\tstruct mlx5_priv *priv = dev->data->dev_private;\n+\tstruct mlx5_hrxq *hrxq = priv->drop_queue.hrxq;\n+\n+\tif (hrxq->tir != NULL)\n+\t\tmlx5_devx_tir_destroy(hrxq);\n+\tif (hrxq->ind_table->ind_table != NULL)\n+\t\tmlx5_devx_ind_table_destroy(hrxq->ind_table);\n+\tif (priv->drop_queue.rxq->rq != NULL)\n+\t\tmlx5_rxq_devx_obj_drop_release(dev);\n+}\n+\n+/**\n+ * Create a DevX drop action for Rx Hash queue.\n+ *\n+ * @param dev\n+ *   Pointer to Ethernet device.\n+ *\n+ * @return\n+ *   0 on success, a negative errno value otherwise and rte_errno is set.\n+ */\n+static int\n+mlx5_devx_drop_action_create(struct rte_eth_dev *dev)\n+{\n+\tstruct mlx5_priv *priv = dev->data->dev_private;\n+\tstruct mlx5_hrxq *hrxq = priv->drop_queue.hrxq;\n+\tint ret;\n+\n+\tret = mlx5_rxq_devx_obj_drop_create(dev);\n+\tif (ret != 0) {\n+\t\tDRV_LOG(ERR, \"Cannot create drop RX queue\");\n+\t\treturn ret;\n+\t}\n+\t/* hrxq->ind_table queues are NULL, drop RX queue ID will be used */\n+\tret = mlx5_devx_ind_table_new(dev, 0, hrxq->ind_table);\n+\tif (ret != 0) {\n+\t\tDRV_LOG(ERR, \"Cannot create drop hash RX queue indirection table\");\n+\t\tgoto error;\n+\t}\n+\tret = mlx5_devx_hrxq_new(dev, hrxq, /* tunnel */ false);\n+\tif (ret != 0) {\n+\t\tDRV_LOG(ERR, \"Cannot create drop hash RX queue\");\n+\t\tgoto error;\n+\t}\n+\treturn 0;\n+error:\n+\tmlx5_devx_drop_action_destroy(dev);\n+\treturn ret;\n }\n \n /**\n",
    "prefixes": [
        "2/4"
    ]
}