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Thu, 9 May 2024 09:32:29 -0700 From: Daniel Jurgens To: CC: , , , , , , , , , Daniel Jurgens Subject: [PATCH net-next 1/2] netdev: Add queue stats for TX stop and wake Date: Thu, 9 May 2024 11:32:15 -0500 Message-ID: <20240509163216.108665-2-danielj@nvidia.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240509163216.108665-1-danielj@nvidia.com> References: <20240509163216.108665-1-danielj@nvidia.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF0000013F:EE_|IA1PR12MB6284:EE_ X-MS-Office365-Filtering-Correlation-Id: c4674a5c-c96e-4244-30d6-08dc7045abe5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230031|82310400017|376005|1800799015|36860700004; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?IzZ8ogeeqF4SdRpzzkKkOVY80kXJlR0bn6IOHDVt83BIFcBZvoyQlqvSO+m3?= =?us-ascii?Q?fFVyJl/OHF/RAkn9kaO8AzVwoO9mY5cA6Mq6/t3UfZARMEtQ+d+4dcLFK2zn?= =?us-ascii?Q?ajnlCtfTX3ITQE/Gq70psJdQ/jAmNJBmxkDH9dezf/Cmp1VV192B+RT74Dq2?= =?us-ascii?Q?eP5L9M9K9mZyZ3EIduvB954IEyX34fq5fEwaz1ATLk1IwxazCjjuEIKhZMaO?= =?us-ascii?Q?azDJZ7yzVNH0bo8NF6IwLs48UYtgk4e5L9CdfF/8QpttkQKPkT8OF9mtiESs?= =?us-ascii?Q?fR57VBdbs5YUGEaVyS2ARvFC2nDXtSmmeEre2h4ZTyhChQkugc7Bq2cT+HnP?= =?us-ascii?Q?0kwOf8eVWj8P5TrQsYn4oEyv8DDC5eUKyJIr25KM2YDlMugl3agwomSXOwRB?= =?us-ascii?Q?949aczLiIKVD7aAqEbIO8/XaWCYgdqvaK+m5yTxO0LkyHac9uK62oWxG7Dv3?= =?us-ascii?Q?snqHR9dj7xcoqPnbKgjFReJskpbpogJJGMOvp7yAHliJw87Giw39spN+saG+?= =?us-ascii?Q?831ZO7n48vENlpOym4hv4TQZfDUBCAlKlVUAUw16fHoVRJXfu/rPUE3Qblu+?= =?us-ascii?Q?uS1XG6E3CBLW6j0H5hSyctrVu0bTdX+4/uRRMeI28q9zhgsptjbhwp439peJ?= =?us-ascii?Q?ACHtNdLubQit+emM5+Ed4zMgIkn7CTGJozAyLY6Hh4q2orD8dpzPvm0rkl64?= =?us-ascii?Q?c/61iQqfSyjj+qL0kxVIXL4UIJYR6uV8SgXUgg/2JWlyQOzkRFgK46A90Fhc?= =?us-ascii?Q?w8UZNxFOxDp3sF9X8fNGLu3G22Q1KwHcog9a3+GZ7qNGLonpFIgG8phg9EOt?= =?us-ascii?Q?zq3/Ptgpf4GVSjQV0JecW/eqFw9fNkIclr2+0TUf5a6c+LRJwY6l4q9MO55t?= =?us-ascii?Q?W7EX2WWNL5olVvBtnacJa8xwHShzmtOFU1xm8R5bRW1lBJktPkuaAqx84vBy?= =?us-ascii?Q?t9F161ZhRLqDsJhKKxcoWfPlePZCYqx7YHsY1YkjSBBbVReEVJikNrcdjUWR?= =?us-ascii?Q?G1qY/gbss2Jht6GcChY8L7LI7FNfvl1007w76gScXefUXhVv+jwkfZzHzVor?= =?us-ascii?Q?cP3n62sl6obtsuS0v2490I2xVX5qeFwQcyUGOn+OKlJMQivIQQcJmtVlLvWn?= =?us-ascii?Q?aSPhA9m4AeGJmZKteLS52Sy2lgQSeaB1IaZnf1rWqIsR6uS0mUk2RsmkeSIp?= =?us-ascii?Q?YvdA8DLreDKqwRpE01mX1JBzWBhLTLCFNFmaANMOEkSiJV3gjqJfgwmqo99K?= =?us-ascii?Q?mcwuqrE5snAbMYaO883Wy3zsmpLY+jWZI+VnqEOR/f/jtgz387g3MJ/x2I62?= =?us-ascii?Q?przrX2FUu3rXoZVpJ+78TmLZfYGfnFQEnoMJVJuG1WHiUu8SSMzHaSQfJhVI?= =?us-ascii?Q?DVAr9LA0hcKvnHy+auETPd2Qp7eu?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230031)(82310400017)(376005)(1800799015)(36860700004);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 May 2024 16:32:51.7340 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c4674a5c-c96e-4244-30d6-08dc7045abe5 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF0000013F.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB6284 TX queue stop and wake are counted by some drivers. Support reporting these via netdev-genl queue stats. Signed-off-by: Daniel Jurgens Reviewed-by: Jiri Pirko --- Documentation/netlink/specs/netdev.yaml | 10 ++++++++++ include/net/netdev_queues.h | 3 +++ include/uapi/linux/netdev.h | 2 ++ net/core/netdev-genl.c | 4 +++- tools/include/uapi/linux/netdev.h | 3 ++- 5 files changed, 20 insertions(+), 2 deletions(-) diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index 2be4b3714d17..c8b976d03330 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -439,6 +439,16 @@ attribute-sets: Number of the packets dropped by the device due to the transmit packets bitrate exceeding the device rate limit. type: uint + - + name: tx-stop + doc: | + Number of times the tx queue was stopped. + type: uint + - + name: tx-wake + doc: | + Number of times the tx queue was restarted. + type: uint operations: list: diff --git a/include/net/netdev_queues.h b/include/net/netdev_queues.h index e7b84f018cee..a8a7e48dfa6c 100644 --- a/include/net/netdev_queues.h +++ b/include/net/netdev_queues.h @@ -41,6 +41,9 @@ struct netdev_queue_stats_tx { u64 hw_gso_wire_bytes; u64 hw_drop_ratelimits; + + u64 stop; + u64 wake; }; /** diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h index cf24f1d9adf8..a8188202413e 100644 --- a/include/uapi/linux/netdev.h +++ b/include/uapi/linux/netdev.h @@ -165,6 +165,8 @@ enum { NETDEV_A_QSTATS_TX_HW_GSO_WIRE_PACKETS, NETDEV_A_QSTATS_TX_HW_GSO_WIRE_BYTES, NETDEV_A_QSTATS_TX_HW_DROP_RATELIMITS, + NETDEV_A_QSTATS_TX_STOP, + NETDEV_A_QSTATS_TX_WAKE, __NETDEV_A_QSTATS_MAX, NETDEV_A_QSTATS_MAX = (__NETDEV_A_QSTATS_MAX - 1) diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c index 4b5054087309..1f6ae6379e0f 100644 --- a/net/core/netdev-genl.c +++ b/net/core/netdev-genl.c @@ -517,7 +517,9 @@ netdev_nl_stats_write_tx(struct sk_buff *rsp, struct netdev_queue_stats_tx *tx) netdev_stat_put(rsp, NETDEV_A_QSTATS_TX_HW_GSO_BYTES, tx->hw_gso_bytes) || netdev_stat_put(rsp, NETDEV_A_QSTATS_TX_HW_GSO_WIRE_PACKETS, tx->hw_gso_wire_packets) || netdev_stat_put(rsp, NETDEV_A_QSTATS_TX_HW_GSO_WIRE_BYTES, tx->hw_gso_wire_bytes) || - netdev_stat_put(rsp, NETDEV_A_QSTATS_TX_HW_DROP_RATELIMITS, tx->hw_drop_ratelimits)) + netdev_stat_put(rsp, NETDEV_A_QSTATS_TX_HW_DROP_RATELIMITS, tx->hw_drop_ratelimits) || + netdev_stat_put(rsp, NETDEV_A_QSTATS_TX_STOP, tx->stop) || + netdev_stat_put(rsp, NETDEV_A_QSTATS_TX_WAKE, tx->wake)) return -EMSGSIZE; return 0; } diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h index cf24f1d9adf8..ccf6976b1693 100644 --- a/tools/include/uapi/linux/netdev.h +++ b/tools/include/uapi/linux/netdev.h @@ -164,7 +164,8 @@ enum { NETDEV_A_QSTATS_TX_HW_GSO_BYTES, NETDEV_A_QSTATS_TX_HW_GSO_WIRE_PACKETS, NETDEV_A_QSTATS_TX_HW_GSO_WIRE_BYTES, - NETDEV_A_QSTATS_TX_HW_DROP_RATELIMITS, + NETDEV_A_QSTATS_TX_STOP, + NETDEV_A_QSTATS_TX_WAKE, __NETDEV_A_QSTATS_MAX, NETDEV_A_QSTATS_MAX = (__NETDEV_A_QSTATS_MAX - 1) -- 2.44.0