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GET /api/patches/2218452/?format=api
{ "id": 2218452, "url": "http://patchwork.ozlabs.org/api/patches/2218452/?format=api", "web_url": "http://patchwork.ozlabs.org/project/openvswitch/patch/20260401091318.2671624-7-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": "<20260401091318.2671624-7-elibr@nvidia.com>", "list_archive_url": null, "date": "2026-04-01T09:13:13", "name": "[ovs-dev,v3,06/11] netdev-dpdk: Make 'started' field atomic.", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "f93f7907c99cfc9983d5d1d777874b79499690d6", "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/20260401091318.2671624-7-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/2218452/comments/", "check": "fail", "checks": "http://patchwork.ozlabs.org/api/patches/2218452/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=h7IC9X63;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=openvswitch.org\n (client-ip=140.211.166.136; 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CTRY:US; LANG:en; SCL:1;\n SRV:;\n IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE;\n SFS:(13230040)(1800799024)(376014)(36860700016)(82310400026)(22082099003)(18002099003)(56012099003);\n DIR:OUT; SFP:1101;", "X-MS-Exchange-AntiSpam-MessageData-ChunkCount": "1", "X-MS-Exchange-AntiSpam-MessageData-0": "\n SL3qcorORwsBS67srjHV3R6ko887bKUDukQRZeEEu15gfosroIezTorhSRGRyctGgombbETOSOkUcI4bjLrBNS2FHMVj1hbtPy1WDckccjYf1zHy2QuERGufVlxoGpnfRV8/0ckEx0AWIqEl7bz1RaovF+toNkDFy5rXiHaogcbZ6CM8V0FEwximg4OH5G4r0I0F/xRcSIQZS2bwcC9+zXOsXKTY9Y7j4YvzUBDw90QHXssYuhvFeOxxEjmsDDhJvQbokoc6Fbqq2z/F7hgKbOwueLiBj99Q7NQIZ/E9FkpmXnHCPs8OqgcAApmUDa+vzjtSaY8SMTgTGEaYRTs8eF6q2lkkNbCmAgP84xI/uoxsTFAItlY3SSyi6U2dIIRfzN1OU+Mgbz5bMJ+A7ohbBUfARXFX/D0fTBcgVeP6Hza4/p6i0HGPt0KQqsQDhj/a", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "01 Apr 2026 09:15:02.2788 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n d94b7735-19b7-4373-0777-08de8fcf27ef", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.161];\n Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n SA2PEPF000015CB.namprd03.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "IA1PR12MB6044", "Subject": "[ovs-dev] [PATCH v3 06/11] netdev-dpdk: Make 'started' field atomic.", "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 started field is currently 'bool', accessed in netdev-dpdk only\nunder a mutex lock. In netdev-doca it will be used not under a lock.\nMove it to be atomic as a pre-step towards it.\n\nSigned-off-by: Eli Britstein <elibr@nvidia.com>\n---\n lib/netdev-dpdk-private.h | 11 ++++++++++-\n lib/netdev-dpdk.c | 12 +++++++-----\n 2 files changed, 17 insertions(+), 6 deletions(-)", "diff": "diff --git a/lib/netdev-dpdk-private.h b/lib/netdev-dpdk-private.h\nindex 9b82db750..79aa2292a 100644\n--- a/lib/netdev-dpdk-private.h\n+++ b/lib/netdev-dpdk-private.h\n@@ -109,7 +109,7 @@ struct netdev_dpdk_common {\n uint16_t port_id;\n bool attached;\n bool is_representor;\n- bool started;\n+ atomic_bool started;\n struct eth_addr hwaddr;\n int mtu;\n int socket_id;\n@@ -170,4 +170,13 @@ netdev_dpdk_common_cast(const struct netdev *netdev)\n return CONTAINER_OF(netdev, struct netdev_dpdk_common, up);\n }\n \n+static inline bool\n+dpdk_dev_is_started(struct netdev_dpdk_common *common)\n+{\n+ bool started;\n+\n+ atomic_read(&common->started, &started);\n+ return started;\n+}\n+\n #endif /* NETDEV_DPDK_PRIVATE_H */\ndiff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c\nindex 5167ef1b0..02b346561 100644\n--- a/lib/netdev-dpdk.c\n+++ b/lib/netdev-dpdk.c\n@@ -1311,7 +1311,6 @@ dpdk_eth_dev_init(struct netdev_dpdk *dev)\n rte_strerror(-diag));\n return -diag;\n }\n- dev->common.started = true;\n \n netdev_dpdk_configure_xstats(&dev->common);\n \n@@ -1331,6 +1330,9 @@ dpdk_eth_dev_init(struct netdev_dpdk *dev)\n \n mbp_priv = rte_mempool_get_priv(dev->common.dpdk_mp->mp);\n dev->buf_size = mbp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM;\n+\n+ atomic_store(&dev->common.started, true);\n+\n return 0;\n }\n \n@@ -1399,7 +1401,7 @@ common_construct(struct netdev *netdev, dpdk_port_t port_no,\n dev->vhost_reconfigured = false;\n dev->virtio_features_state = OVS_VIRTIO_F_CLEAN;\n dev->common.attached = false;\n- dev->common.started = false;\n+ atomic_init(&dev->common.started, false);\n \n ovsrcu_init(&dev->qos_conf, NULL);\n \n@@ -1610,7 +1612,7 @@ netdev_dpdk_destruct(struct netdev *netdev)\n dpdk_rx_steer_unconfigure(dev);\n \n rte_eth_dev_stop(dev->common.port_id);\n- dev->common.started = false;\n+ atomic_store(&dev->common.started, false);\n \n if (dev->common.attached) {\n bool dpdk_resources_still_used = false;\n@@ -6113,7 +6115,7 @@ netdev_dpdk_reconfigure(struct netdev *netdev)\n && dev->common.txq_size == dev->common.requested_txq_size\n && eth_addr_equals(dev->common.hwaddr, dev->common.requested_hwaddr)\n && dev->common.socket_id == dev->common.requested_socket_id\n- && dev->common.started && !pending_reset) {\n+ && dpdk_dev_is_started(&dev->common) && !pending_reset) {\n /* Reconfiguration is unnecessary */\n \n goto out;\n@@ -6135,7 +6137,7 @@ retry:\n rte_eth_dev_stop(dev->common.port_id);\n }\n \n- dev->common.started = false;\n+ atomic_store(&dev->common.started, false);\n \n err = netdev_dpdk_mempool_configure(dev);\n if (err && err != EEXIST) {\n", "prefixes": [ "ovs-dev", "v3", "06/11" ] }