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Miller" CC: "netdev@vger.kernel.org" , Vlad Buslov , Dmytro Linkin , Saeed Mahameed Subject: [net-next 10/11] net/mlx5e: Add trace point for neigh used value update Thread-Topic: [net-next 10/11] net/mlx5e: Add trace point for neigh used value update Thread-Index: AQHVWHgxUO73pAZERUWgMKhpEbJJeg== Date: Wed, 21 Aug 2019 23:28:51 +0000 Message-ID: <20190821232806.21847-11-saeedm@mellanox.com> References: <20190821232806.21847-1-saeedm@mellanox.com> In-Reply-To: <20190821232806.21847-1-saeedm@mellanox.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.21.0 x-originating-ip: [209.116.155.178] x-clientproxiedby: BYAPR02CA0032.namprd02.prod.outlook.com (2603:10b6:a02:ee::45) To AM4PR0501MB2756.eurprd05.prod.outlook.com (2603:10a6:200:5c::10) authentication-results: spf=none (sender IP is ) smtp.mailfrom=saeedm@mellanox.com; x-ms-exchange-messagesentrepresentingtype: 1 x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 3f0814cc-67db-479a-f54c-08d7268f534e x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(5600148)(711020)(4605104)(1401327)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7193020);SRVR:AM4PR0501MB2674; x-ms-traffictypediagnostic: AM4PR0501MB2674: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:2657; x-forefront-prvs: 0136C1DDA4 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(136003)(396003)(376002)(346002)(39860400002)(366004)(199004)(189003)(15650500001)(50226002)(5660300002)(6512007)(86362001)(3846002)(6116002)(305945005)(14444005)(66946007)(66556008)(7736002)(66476007)(256004)(66446008)(64756008)(66066001)(1076003)(71200400001)(71190400001)(4326008)(478600001)(6916009)(8936002)(6486002)(107886003)(2906002)(2616005)(81156014)(81166006)(8676002)(476003)(6506007)(386003)(99286004)(52116002)(26005)(486006)(53936002)(76176011)(316002)(36756003)(25786009)(186003)(54906003)(14454004)(102836004)(446003)(6436002)(11346002);DIR:OUT;SFP:1101;SCL:1;SRVR:AM4PR0501MB2674;H:AM4PR0501MB2756.eurprd05.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: WjKd/kHGuWnDrJsBaM45Ybx1q8wVoPvXR/NG0kAHgU5KoErC7f3Y3iyeq9wZrdWx59dvrhaivAOxiq4WNSPqmUS2VwR/d71vUGXSS+aFJtCFomrY3V7kryiCXppj4s4TMbTup/OYNz8V3tXm3tB/oQvuq9eK+8cLczx5melYAytWxEUxgyi/wRzVqzi2HaGeX8HsT8z/l8j124fJfntYVctvTDuvMt+0lxFIlDzVca2Rir0YCknAFwB+bIPvFu+FdxjCMJg1iax9ZndQnu5jsRCUjOM1e1+A/HXNsm125Acao9r454dFMN6luS6SgfJzzZ1XZTdU4f8BMHa6pvpcPIyN4w048NliZA1N5HVi09xEfCuEJl0Xz5nHhJHBST2j28QDBLVR0BzyoOV/idZtguiHdK6enT9vR0Uf4kEu3SM= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3f0814cc-67db-479a-f54c-08d7268f534e X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Aug 2019 23:28:51.9305 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: WbFJCU+432OqKWtoOd5MfeEBZEDp2C8pgDL7S/FAugc3W8hZPrGr/zWf+bFbWFxyxPZBbg6dr3qjh/GZI0byUg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM4PR0501MB2674 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Vlad Buslov Allow tracing result of neigh used value update task that is executed periodically on workqueue. Usage example: ># cd /sys/kernel/debug/tracing ># echo mlx5:mlx5e_tc_update_neigh_used_value >> set_event ># cat trace ... kworker/u48:4-8806 [009] ...1 55117.882428: mlx5e_tc_update_neigh_used= _value: netdev: ens1f0 IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_used=3D1 Added corresponding documentation in Documentation/networking/device-driver/mellanox/mlx5.rst Signed-off-by: Vlad Buslov Reviewed-by: Dmytro Linkin Signed-off-by: Saeed Mahameed --- .../device_drivers/mellanox/mlx5.rst | 7 +++++ .../mlx5/core/diag/en_tc_tracepoint.h | 31 +++++++++++++++++++ .../net/ethernet/mellanox/mlx5/core/en_tc.c | 2 ++ 3 files changed, 40 insertions(+) diff --git a/Documentation/networking/device_drivers/mellanox/mlx5.rst b/Do= cumentation/networking/device_drivers/mellanox/mlx5.rst index 1339dbf52431..b2f21ce9b090 100644 --- a/Documentation/networking/device_drivers/mellanox/mlx5.rst +++ b/Documentation/networking/device_drivers/mellanox/mlx5.rst @@ -251,3 +251,10 @@ tc and eswitch offloads tracepoints: $ cat /sys/kernel/debug/tracing/trace ... tc-6546 [010] ...1 2679.704889: mlx5e_stats_flower: cookie=3D0000000= 060eb3d6a bytes=3D0 packets=3D0 lastused=3D4295560217 + +- mlx5e_tc_update_neigh_used_value: trace tunnel rule neigh update value o= ffloaded to mlx5:: + + $ echo mlx5:mlx5e_tc_update_neigh_used_value >> /sys/kernel/debug/trac= ing/set_event + $ cat /sys/kernel/debug/tracing/trace + ... + kworker/u48:4-8806 [009] ...1 55117.882428: mlx5e_tc_update_neigh_use= d_value: netdev: ens1f0 IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_used=3D1 diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.= h b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h index a362100fe6d3..d4e6cfaaade3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h @@ -10,6 +10,7 @@ #include #include #include +#include "en_rep.h" =20 #define __parse_action(ids, num) parse_action(p, ids, num) =20 @@ -73,6 +74,36 @@ TRACE_EVENT(mlx5e_stats_flower, ) ); =20 +TRACE_EVENT(mlx5e_tc_update_neigh_used_value, + TP_PROTO(const struct mlx5e_neigh_hash_entry *nhe, bool neigh_used), + TP_ARGS(nhe, neigh_used), + TP_STRUCT__entry(__string(devname, nhe->m_neigh.dev->name) + __array(u8, v4, 4) + __array(u8, v6, 16) + __field(bool, neigh_used) + ), + TP_fast_assign(const struct mlx5e_neigh *mn =3D &nhe->m_neigh; + struct in6_addr *pin6; + __be32 *p32; + + __assign_str(devname, mn->dev->name); + __entry->neigh_used =3D neigh_used; + + p32 =3D (__be32 *)__entry->v4; + pin6 =3D (struct in6_addr *)__entry->v6; + if (mn->family =3D=3D AF_INET) { + *p32 =3D mn->dst_ip.v4; + ipv6_addr_set_v4mapped(*p32, pin6); + } else if (mn->family =3D=3D AF_INET6) { + *pin6 =3D mn->dst_ip.v6; + } + ), + TP_printk("netdev: %s IPv4: %pI4 IPv6: %pI6c neigh_used=3D%d\n", + __get_str(devname), __entry->v4, __entry->v6, + __entry->neigh_used + ) +); + #endif /* _MLX5_TC_TP_ */ =20 /* This part must be outside protection */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/= ethernet/mellanox/mlx5/core/en_tc.c index c40cca08c8cc..5581a8045ede 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1536,6 +1536,8 @@ void mlx5e_tc_update_neigh_used_value(struct mlx5e_ne= igh_hash_entry *nhe) } } =20 + trace_mlx5e_tc_update_neigh_used_value(nhe, neigh_used); + if (neigh_used) { nhe->reported_lastuse =3D jiffies; =20 --=20 2.21.0