net/mlx5: fs, add multiple prios to RDMA TRANSPORT steering domain

RDMA TRANSPORT domains were initially limited to a single priority.
This change allows the domains to have multiple priorities, making
it possible to add several rules and control the order in which
they're evaluated.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/b299cbb4c8678a33da6e6b6988b5bf6145c54b88.1750148083.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index a8046200d376d3b99f57b815cefbad14507700b1..7f5608081ea0e0bf4679dca0ea1060691f77438f 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -3245,34 +3245,48 @@ static int
 init_rdma_transport_rx_root_ns_one(struct mlx5_flow_steering *steering,
                                   int vport_idx)
 {
+       struct mlx5_flow_root_namespace *root_ns;
        struct fs_prio *prio;
+       int i;
 
        steering->rdma_transport_rx_root_ns[vport_idx] =
                create_root_ns(steering, FS_FT_RDMA_TRANSPORT_RX);
        if (!steering->rdma_transport_rx_root_ns[vport_idx])
                return -ENOMEM;
 
-       /* create 1 prio*/
-       prio = fs_create_prio(&steering->rdma_transport_rx_root_ns[vport_idx]->ns,
-                             MLX5_RDMA_TRANSPORT_BYPASS_PRIO, 1);
-       return PTR_ERR_OR_ZERO(prio);
+       root_ns = steering->rdma_transport_rx_root_ns[vport_idx];
+
+       for (i = 0; i < MLX5_RDMA_TRANSPORT_BYPASS_PRIO; i++) {
+               prio = fs_create_prio(&root_ns->ns, i, 1);
+               if (IS_ERR(prio))
+                       return PTR_ERR(prio);
+       }
+       set_prio_attrs(root_ns);
+       return 0;
 }
 
 static int
 init_rdma_transport_tx_root_ns_one(struct mlx5_flow_steering *steering,
                                   int vport_idx)
 {
+       struct mlx5_flow_root_namespace *root_ns;
        struct fs_prio *prio;
+       int i;
 
        steering->rdma_transport_tx_root_ns[vport_idx] =
                create_root_ns(steering, FS_FT_RDMA_TRANSPORT_TX);
        if (!steering->rdma_transport_tx_root_ns[vport_idx])
                return -ENOMEM;
 
-       /* create 1 prio*/
-       prio = fs_create_prio(&steering->rdma_transport_tx_root_ns[vport_idx]->ns,
-                             MLX5_RDMA_TRANSPORT_BYPASS_PRIO, 1);
-       return PTR_ERR_OR_ZERO(prio);
+       root_ns = steering->rdma_transport_tx_root_ns[vport_idx];
+
+       for (i = 0; i < MLX5_RDMA_TRANSPORT_BYPASS_PRIO; i++) {
+               prio = fs_create_prio(&root_ns->ns, i, 1);
+               if (IS_ERR(prio))
+                       return PTR_ERR(prio);
+       }
+       set_prio_attrs(root_ns);
+       return 0;
 }
 
 static int init_rdma_transport_rx_root_ns(struct mlx5_flow_steering *steering)

diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h
index 939e58c2f3865fcc676ebfd8a1fc78db06715cb4..86055d55836d944deb86aadf8b6207bc9ef07ca3 100644 (file)
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -40,7 +40,7 @@
 
 #define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
 
-#define MLX5_RDMA_TRANSPORT_BYPASS_PRIO 0
+#define MLX5_RDMA_TRANSPORT_BYPASS_PRIO 16
 #define MLX5_FS_MAX_POOL_SIZE BIT(30)
 
 enum mlx5_flow_destination_type {