From: Xueming Li Date: Tue, 19 Oct 2021 10:34:56 +0000 (+0800) Subject: net/mlx5: improve Verbs flow priority discovery X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=1d47e9335e2f5a96b7669e813991e181316c630c;p=dpdk.git net/mlx5: improve Verbs flow priority discovery To detect number flow Verbs flow priorities, PMD try to create Verbs flows in different priority. While Verbs is not designed to support ports larger than 255. When DevX supported by kernel driver, 16 Verbs priorities must be supported, no need to create Verbs flows. Signed-off-by: Xueming Li Acked-by: Viacheslav Ovsiienko --- diff --git a/drivers/net/mlx5/mlx5_flow_verbs.c b/drivers/net/mlx5/mlx5_flow_verbs.c index 60029f7117..3f5aaa885f 100644 --- a/drivers/net/mlx5/mlx5_flow_verbs.c +++ b/drivers/net/mlx5/mlx5_flow_verbs.c @@ -83,6 +83,11 @@ mlx5_flow_discover_priorities(struct rte_eth_dev *dev) int i; int priority = 0; +#if defined(HAVE_MLX5DV_DR_DEVX_PORT) || defined(HAVE_MLX5DV_DR_DEVX_PORT_V35) + /* If DevX supported, driver must support 16 verbs flow priorities. */ + priority = RTE_DIM(priority_map_5); + goto out; +#endif if (!drop->qp) { rte_errno = ENOTSUP; return -rte_errno; @@ -109,6 +114,9 @@ mlx5_flow_discover_priorities(struct rte_eth_dev *dev) dev->data->port_id, priority); return -rte_errno; } +#if defined(HAVE_MLX5DV_DR_DEVX_PORT) || defined(HAVE_MLX5DV_DR_DEVX_PORT_V35) +out: +#endif DRV_LOG(INFO, "port %u supported flow priorities:" " 0-%d for ingress or egress root table," " 0-%d for non-root table or transfer root table.",