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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: vCEEG08t2rg3VHJfx3gcjbYDE/a1/13nTMSHEDYWH2xfWgDht39GYULPlubF/dpb/BytxrwcDqYazzUZLyfVZe21zbnuMaU86VorWqv4xQq4X2hPVOOeommdB7OaP5s6Uz9sMNWmILIF7ppd4DLmoOn9piAzyVDrHpchCOwaJ+JvQVQbg38X3oaVDlXHoDc3t2lJNmxJOY2J1TT9tSR+zYc9arguGhimEJFPrINb5MGe/Wrn0xHy/T5mogddMZTgK//mIYxRY+3oLg4gJT8MMcMuf205BuiwsgIq3EiCOidUh08XyjjSL+9sv5ityi2fRfESuhS92IpGKGxr9didK55lsVYqH7KChHV8XOJW7ArDXiFrOHtUmStUyBfFovHfBoKwgSvnB0PqavmUooc9XPpg+2/gnyGy3xjq0qDpmPk= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8f4f59c0-6c40-465b-33ae-08d6b1e67d79 X-MS-Exchange-CrossTenant-originalarrivaltime: 26 Mar 2019 12:28:02.4072 (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-Transport-CrossTenantHeadersStamped: AM0PR0502MB3828 Subject: Re: [dpdk-dev] [PATCH v2 1/4] net/mlx5: fix memory event on secondary process X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Message-ID: <20190326122802.1BCGLaX51L-MsnG68AovYABozrhKYExvSnyvMauIek8@z> Monday, March 25, 2019 9:16 PM, Yongseok Koh: > Subject: [dpdk-dev] [PATCH v2 1/4] net/mlx5: fix memory event on > secondary process >=20 > As the memory event is propagated to secondary processes, the event is > processed redundantly. This should be processed once because the data > structure used for MR and the event is global across the processes. >=20 > Fixes: 974f1e7ef146 ("net/mlx5: add new memory region support") > Cc: stable@dpdk.org >=20 > Signed-off-by: Yongseok Koh Acked-by: Shahaf Shuler > --- > drivers/net/mlx5/mlx5.c | 5 +++-- > drivers/net/mlx5/mlx5_mr.c | 2 ++ > 2 files changed, 5 insertions(+), 2 deletions(-) >=20 > diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index > ae4b71695e..dd29eba955 100644 > --- a/drivers/net/mlx5/mlx5.c > +++ b/drivers/net/mlx5/mlx5.c > @@ -157,9 +157,10 @@ mlx5_prepare_shared_data(void) > if (rte_eal_process_type() =3D=3D RTE_PROC_PRIMARY) { > LIST_INIT(&mlx5_shared_data- > >mem_event_cb_list); > rte_rwlock_init(&mlx5_shared_data- > >mem_event_rwlock); > + > rte_mem_event_callback_register("MLX5_MEM_EVENT_CB", > + > mlx5_mr_mem_event_cb, > + NULL); > } > - > rte_mem_event_callback_register("MLX5_MEM_EVENT_CB", > - mlx5_mr_mem_event_cb, > NULL); > } > rte_spinlock_unlock(&mlx5_shared_data_lock); > } > diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c inde= x > 700d83d1bc..d336a77e40 100644 > --- a/drivers/net/mlx5/mlx5_mr.c > +++ b/drivers/net/mlx5/mlx5_mr.c > @@ -891,6 +891,8 @@ mlx5_mr_mem_event_cb(enum rte_mem_event > event_type, const void *addr, > struct mlx5_priv *priv; > struct mlx5_dev_list *dev_list =3D &mlx5_shared_data- > >mem_event_cb_list; >=20 > + /* Must be called from the primary process. */ > + assert(rte_eal_process_type() =3D=3D RTE_PROC_PRIMARY); > switch (event_type) { > case RTE_MEM_EVENT_FREE: > rte_rwlock_write_lock(&mlx5_shared_data- > >mem_event_rwlock); > -- > 2.11.0