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X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 70e1fb47-1155-421d-87fc-2e58f638b6e0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: uN4SpA/YK6Bz+0CbE7/Y7bq5LZUYOE4CmCnSr8/A2LDXghqp++ELneDIQiX9uXhyZcEyn9qTnb7akEJ97CA2/Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR18MB4954 X-Proofpoint-ORIG-GUID: uJHHaTkwQ4XDXbdqh1uTvBqvw9FVoXh_ X-Proofpoint-GUID: uJHHaTkwQ4XDXbdqh1uTvBqvw9FVoXh_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Ping > ---------------------------------------------------------------------- > This patch introduces new function to get rss device config and adds code= to > forward the RSS control command to backend through hw control queue if > RSS feature is negotiated. > This patch will help to negotiate VIRTIO_NET_F_RSS feature if vhost-vdpa > backend supports RSS in HW. >=20 > Signed-off-by: Srujana Challa > --- > .../net/virtio/virtio_user/virtio_user_dev.c | 31 ++++++++++++++++++- > .../net/virtio/virtio_user/virtio_user_dev.h | 2 ++ > drivers/net/virtio/virtio_user_ethdev.c | 3 ++ > 3 files changed, 35 insertions(+), 1 deletion(-) >=20 > diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c > b/drivers/net/virtio/virtio_user/virtio_user_dev.c > index 578877d089..b0937c9df9 100644 > --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c > +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c > @@ -304,6 +304,24 @@ virtio_user_dev_init_max_queue_pairs(struct > virtio_user_dev *dev, uint32_t user_ > return 0; > } >=20 > +int > +virtio_user_dev_get_rss_config(struct virtio_user_dev *dev, void *dst, > +size_t offset, int length) { > + int ret =3D 0; > + > + if (!(dev->device_features & (1ULL << VIRTIO_NET_F_RSS))) > + return -ENOTSUP; > + > + if (!dev->ops->get_config) > + return -ENOTSUP; > + > + ret =3D dev->ops->get_config(dev, dst, offset, length); > + if (ret) > + PMD_DRV_LOG(ERR, "(%s) Failed to get rss config in device", > +dev->path); > + > + return ret; > +} > + > int > virtio_user_dev_set_mac(struct virtio_user_dev *dev) { @@ -687,7 +705,8 > @@ virtio_user_free_vrings(struct virtio_user_dev *dev) > 1ULL << VIRTIO_F_IN_ORDER | \ > 1ULL << VIRTIO_F_VERSION_1 | \ > 1ULL << VIRTIO_F_RING_PACKED | \ > - 1ULL << VIRTIO_F_NOTIFICATION_DATA) > + 1ULL << VIRTIO_F_NOTIFICATION_DATA | \ > + 1ULL << VIRTIO_NET_F_RSS) >=20 > int > virtio_user_dev_init(struct virtio_user_dev *dev, char *path, uint16_t > queues, @@ -903,6 +922,11 @@ virtio_user_handle_ctrl_msg_split(struct > virtio_user_dev *dev, struct vring *vri >=20 > queues =3D *(uint16_t *)(uintptr_t)vring->desc[idx_data].addr; > status =3D virtio_user_handle_mq(dev, queues); > + } else if (hdr->class =3D=3D VIRTIO_NET_CTRL_MQ && hdr->cmd =3D=3D > VIRTIO_NET_CTRL_MQ_RSS_CONFIG) { > + struct virtio_net_ctrl_rss *rss; > + > + rss =3D (struct virtio_net_ctrl_rss *)(uintptr_t)vring- > >desc[idx_data].addr; > + status =3D virtio_user_handle_mq(dev, rss->max_tx_vq); > } else if (hdr->class =3D=3D VIRTIO_NET_CTRL_RX || > hdr->class =3D=3D VIRTIO_NET_CTRL_MAC || > hdr->class =3D=3D VIRTIO_NET_CTRL_VLAN) { @@ -964,6 > +988,11 @@ virtio_user_handle_ctrl_msg_packed(struct virtio_user_dev > *dev, > queues =3D *(uint16_t *)(uintptr_t) > vring->desc[idx_data].addr; > status =3D virtio_user_handle_mq(dev, queues); > + } else if (hdr->class =3D=3D VIRTIO_NET_CTRL_MQ && hdr->cmd =3D=3D > VIRTIO_NET_CTRL_MQ_RSS_CONFIG) { > + struct virtio_net_ctrl_rss *rss; > + > + rss =3D (struct virtio_net_ctrl_rss *)(uintptr_t)vring- > >desc[idx_data].addr; > + status =3D virtio_user_handle_mq(dev, rss->max_tx_vq); > } else if (hdr->class =3D=3D VIRTIO_NET_CTRL_RX || > hdr->class =3D=3D VIRTIO_NET_CTRL_MAC || > hdr->class =3D=3D VIRTIO_NET_CTRL_VLAN) { diff --git > a/drivers/net/virtio/virtio_user/virtio_user_dev.h > b/drivers/net/virtio/virtio_user/virtio_user_dev.h > index 29ec386da5..39b3eec0f2 100644 > --- a/drivers/net/virtio/virtio_user/virtio_user_dev.h > +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h > @@ -86,6 +86,8 @@ int virtio_user_dev_update_status(struct > virtio_user_dev *dev); int virtio_user_dev_update_link_state(struct > virtio_user_dev *dev); int virtio_user_dev_set_mac(struct virtio_user_de= v > *dev); int virtio_user_dev_get_mac(struct virtio_user_dev *dev); > +int virtio_user_dev_get_rss_config(struct virtio_user_dev *dev, void *ds= t, > size_t offset, > + int length); > void virtio_user_dev_delayed_disconnect_handler(void *param); int > virtio_user_dev_server_reconnect(struct virtio_user_dev *dev); extern co= nst > char * const virtio_user_backend_strings[]; diff --git > a/drivers/net/virtio/virtio_user_ethdev.c > b/drivers/net/virtio/virtio_user_ethdev.c > index 241465ecdd..6c10e8f6c0 100644 > --- a/drivers/net/virtio/virtio_user_ethdev.c > +++ b/drivers/net/virtio/virtio_user_ethdev.c > @@ -52,6 +52,9 @@ virtio_user_read_dev_config(struct virtio_hw *hw, > size_t offset, >=20 > if (offset =3D=3D offsetof(struct virtio_net_config, max_virtqueue_pair= s)) > *(uint16_t *)dst =3D dev->max_queue_pairs; > + > + if (offset >=3D offsetof(struct virtio_net_config, rss_max_key_size)) > + virtio_user_dev_get_rss_config(dev, dst, offset, length); > } >=20 > static void > -- > 2.25.1