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GET /api/patches/2218454/?format=api
{ "id": 2218454, "url": "http://patchwork.ozlabs.org/api/patches/2218454/?format=api", "web_url": "http://patchwork.ozlabs.org/project/openvswitch/patch/20260401091318.2671624-8-elibr@nvidia.com/", "project": { "id": 47, "url": "http://patchwork.ozlabs.org/api/projects/47/?format=api", "name": "Open vSwitch", "link_name": "openvswitch", "list_id": "ovs-dev.openvswitch.org", "list_email": "ovs-dev@openvswitch.org", "web_url": "http://openvswitch.org/", "scm_url": "git@github.com:openvswitch/ovs.git", "webscm_url": "https://github.com/openvswitch/ovs", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260401091318.2671624-8-elibr@nvidia.com>", "list_archive_url": null, "date": "2026-04-01T09:13:14", "name": "[ovs-dev,v3,07/11] netdev-dpdk: Direct mempool usage.", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "1352d096f5847bd26fbb92f7776b294feb82f6c5", "submitter": { "id": 79848, "url": "http://patchwork.ozlabs.org/api/people/79848/?format=api", "name": "Eli Britstein", "email": "elibr@nvidia.com" }, "delegate": { "id": 75123, "url": "http://patchwork.ozlabs.org/api/users/75123/?format=api", "username": "echaudron", "first_name": "Eelco", "last_name": "Chaudron", "email": "echaudro@redhat.com" }, "mbox": "http://patchwork.ozlabs.org/project/openvswitch/patch/20260401091318.2671624-8-elibr@nvidia.com/mbox/", "series": [ { "id": 498297, "url": "http://patchwork.ozlabs.org/api/series/498297/?format=api", "web_url": "http://patchwork.ozlabs.org/project/openvswitch/list/?series=498297", "date": "2026-04-01T09:13:07", "name": "netdev-doca", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/498297/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2218454/comments/", "check": "fail", "checks": "http://patchwork.ozlabs.org/api/patches/2218454/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<ovs-dev-bounces@openvswitch.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "dev@openvswitch.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "ovs-dev@lists.linuxfoundation.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=Nvidia.com header.i=@Nvidia.com header.a=rsa-sha256\n header.s=selector2 header.b=Uv/8bVUW;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=openvswitch.org\n (client-ip=2605:bc80:3010::137; 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CTRY:US; LANG:en; SCL:1;\n SRV:;\n IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge1.nvidia.com; CAT:NONE;\n SFS:(13230040)(82310400026)(1800799024)(36860700016)(376014)(56012099003)(18002099003)(22082099003);\n DIR:OUT; SFP:1101;", "X-MS-Exchange-AntiSpam-MessageData-ChunkCount": "1", "X-MS-Exchange-AntiSpam-MessageData-0": "\n x2fGdTPrlHPI2Ed7fz6ao7EK/c6JRaU8ZrPZ2m1IlLGUk5LPYhavAW7THRfJY97ylRe2q7LF9TeFXxUqE5zvfNyaftoHdLlFMnUn2HAb3V7Z05rZ1uxp0swoTvDks2xZrdSPfJn6FXzY1t/wsefOLNBXAZCKUEgQps7Lbjzo8FKbSy83yOB/30vmZRFpbh8fq/RAVzq5szMG9YS82z/Yqb94TEeHo+qneO7hvOIDGq/jhd8ReH52IS2wXGCCZuzO13iw7H/GNv8d3fHyAevyaIlRnEDFzk93FWarucxteA4mQLRhOm/HyvZTLSeE/rfda6GcQvOteGls6SC2DZ3oBy0mRTlW7Y6iR1nRVPIcIEt7oQJgkdkju5b0/jM5yngIknRHsNGfUuOzx35sVEh2NosdkH/43S0flbk7D9F1bYVDWwuHwFlyhMfz1e2Hnlwn", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "01 Apr 2026 09:15:07.8403 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 6a8c6341-dd90-419b-0fc7-08de8fcf2b40", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.160];\n Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n CY4PEPF0000E9D8.namprd05.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "SN7PR12MB6816", "Subject": "[ovs-dev] [PATCH v3 07/11] netdev-dpdk: Direct mempool usage.", "X-BeenThere": "ovs-dev@openvswitch.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "<ovs-dev.openvswitch.org>", "List-Unsubscribe": "<https://mail.openvswitch.org/mailman/options/ovs-dev>,\n <mailto:ovs-dev-request@openvswitch.org?subject=unsubscribe>", "List-Archive": "<http://mail.openvswitch.org/pipermail/ovs-dev/>", "List-Post": "<mailto:ovs-dev@openvswitch.org>", "List-Help": "<mailto:ovs-dev-request@openvswitch.org?subject=help>", "List-Subscribe": "<https://mail.openvswitch.org/mailman/listinfo/ovs-dev>,\n <mailto:ovs-dev-request@openvswitch.org?subject=subscribe>", "From": "Eli Britstein via dev <ovs-dev@openvswitch.org>", "Reply-To": "Eli Britstein <elibr@nvidia.com>", "Cc": "Eli Britstein <elibr@nvidia.com>, Ilya Maximets <i.maximets@ovn.org>,\n David Marchand <david.marchand@redhat.com>, Maor Dickman <maord@nvidia.com>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "ovs-dev-bounces@openvswitch.org", "Sender": "\"dev\" <ovs-dev-bounces@openvswitch.org>" }, "content": "The mempool object 'mp' resides inside \"struct dpdk_mp\", that has more\nmetadata fields used to manage the mempools, share them etc.\n\nNetdev-doca will not need this metadata handling. Keep the 'mp' as a\nseparated field in netdev_dpdk_common as a pre-step towards it.\nUsage is a bit optimized as the access has one less indirect\ndereference.\n\nSigned-off-by: Eli Britstein <elibr@nvidia.com>\n---\n lib/netdev-dpdk-private.h | 2 +-\n lib/netdev-dpdk.c | 30 ++++++++++++++++--------------\n 2 files changed, 17 insertions(+), 15 deletions(-)", "diff": "diff --git a/lib/netdev-dpdk-private.h b/lib/netdev-dpdk-private.h\nindex 79aa2292a..083ddacb3 100644\n--- a/lib/netdev-dpdk-private.h\n+++ b/lib/netdev-dpdk-private.h\n@@ -123,7 +123,7 @@ struct netdev_dpdk_common {\n \n PADDED_MEMBERS_CACHELINE_MARKER(CACHE_LINE_SIZE, cacheline1,\n struct ovs_mutex mutex OVS_ACQ_AFTER(NETDEV_DPDK_GLOBAL_MUTEX);\n- struct dpdk_mp *dpdk_mp;\n+ struct rte_mempool *mp;\n );\n \n PADDED_MEMBERS(CACHE_LINE_SIZE,\ndiff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c\nindex 02b346561..2562eb4b4 100644\n--- a/lib/netdev-dpdk.c\n+++ b/lib/netdev-dpdk.c\n@@ -418,6 +418,7 @@ enum dpdk_rx_steer_flags {\n struct netdev_dpdk {\n struct netdev_dpdk_common common;\n \n+ struct dpdk_mp *dpdk_mp;\n enum dpdk_dev_type type;\n int buf_size;\n \n@@ -845,7 +846,7 @@ netdev_dpdk_mempool_configure(struct netdev_dpdk *dev)\n /* Check for any pre-existing dpdk_mp for the device before accessing\n * the associated mempool.\n */\n- if (dev->common.dpdk_mp != NULL) {\n+ if (dev->dpdk_mp != NULL) {\n /* A new MTU was requested, decrement the reference count for the\n * devices current dpdk_mp. This is required even if a pointer to\n * same dpdk_mp is returned by dpdk_mp_get. The refcount for dmp\n@@ -853,9 +854,10 @@ netdev_dpdk_mempool_configure(struct netdev_dpdk *dev)\n * must be decremented to keep an accurate refcount for the\n * dpdk_mp.\n */\n- dpdk_mp_put(dev->common.dpdk_mp);\n+ dpdk_mp_put(dev->dpdk_mp);\n }\n- dev->common.dpdk_mp = dmp;\n+ dev->dpdk_mp = dmp;\n+ dev->common.mp = dmp->mp;\n dev->common.mtu = dev->common.requested_mtu;\n dev->common.socket_id = dev->common.requested_socket_id;\n dev->common.max_packet_len = MTU_TO_FRAME_LEN(dev->common.mtu);\n@@ -1096,7 +1098,7 @@ dpdk_eth_dev_port_config(struct netdev_dpdk_common *common,\n diag = rte_eth_rx_queue_setup(common->port_id, i,\n common->rxq_size,\n common->socket_id, NULL,\n- common->dpdk_mp->mp);\n+ common->mp);\n if (diag) {\n VLOG_INFO(\"Interface %s unable to setup rxq(%d): %s\",\n common->up.name, i, rte_strerror(-diag));\n@@ -1328,7 +1330,7 @@ dpdk_eth_dev_init(struct netdev_dpdk *dev)\n memset(&dev->common.link, 0, sizeof dev->common.link);\n }\n \n- mbp_priv = rte_mempool_get_priv(dev->common.dpdk_mp->mp);\n+ mbp_priv = rte_mempool_get_priv(dev->common.mp);\n dev->buf_size = mbp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM;\n \n atomic_store(&dev->common.started, true);\n@@ -1590,7 +1592,8 @@ common_destruct(struct netdev_dpdk *dev)\n OVS_EXCLUDED(dev->common.mutex)\n {\n rte_free(dev->common.tx_q);\n- dpdk_mp_put(dev->common.dpdk_mp);\n+ dpdk_mp_put(dev->dpdk_mp);\n+ dev->common.mp = NULL;\n \n ovs_list_remove(&dev->common.list_node);\n free(ovsrcu_get_protected(struct ingress_policer *,\n@@ -2811,7 +2814,7 @@ netdev_dpdk_vhost_rxq_recv(struct netdev_rxq *rxq,\n return EAGAIN;\n }\n \n- nb_rx = rte_vhost_dequeue_burst(vid, qid, dev->common.dpdk_mp->mp,\n+ nb_rx = rte_vhost_dequeue_burst(vid, qid, dev->common.mp,\n (struct rte_mbuf **) batch->packets,\n NETDEV_MAX_BURST);\n if (!nb_rx) {\n@@ -3121,8 +3124,7 @@ dpdk_copy_batch_to_mbuf(struct netdev_dpdk_common *common,\n } else {\n struct dp_packet *pktcopy;\n \n- pktcopy = dpdk_copy_dp_packet_to_mbuf(\n- common->dpdk_mp->mp, packet);\n+ pktcopy = dpdk_copy_dp_packet_to_mbuf(common->mp, packet);\n if (pktcopy) {\n dp_packet_batch_refill(batch, pktcopy, i);\n }\n@@ -4654,11 +4656,11 @@ netdev_dpdk_get_mempool_info(struct unixctl_conn *conn,\n ovs_mutex_lock(&dev->common.mutex);\n ovs_mutex_lock(&dpdk_mp_mutex);\n \n- if (dev->common.dpdk_mp) {\n- rte_mempool_dump(stream, dev->common.dpdk_mp->mp);\n+ if (dev->common.mp) {\n+ rte_mempool_dump(stream, dev->common.mp);\n fprintf(stream, \" count: avail (%u), in use (%u)\\n\",\n- rte_mempool_avail_count(dev->common.dpdk_mp->mp),\n- rte_mempool_in_use_count(dev->common.dpdk_mp->mp));\n+ rte_mempool_avail_count(dev->common.mp),\n+ rte_mempool_in_use_count(dev->common.mp));\n } else {\n error = \"Not allocated\";\n }\n@@ -4783,7 +4785,7 @@ new_device(int vid)\n if (dev->common.requested_n_txq < qp_num\n || dev->common.requested_n_rxq < qp_num\n || dev->common.requested_socket_id != newnode\n- || dev->common.dpdk_mp == NULL) {\n+ || dev->common.mp == NULL) {\n dev->common.requested_socket_id = newnode;\n dev->common.requested_n_rxq = qp_num;\n dev->common.requested_n_txq = qp_num;\n", "prefixes": [ "ovs-dev", "v3", "07/11" ] }