From: Mark Bloch <markb@mellanox.com>
Date: Thu, 28 Mar 2019 13:27:32 +0000 (+0200)
Subject: net/mlx5: E-Switch, add a new prio to be used by the RDMA side
X-Git-Tag: v5.2-rc1~114^2~82^2
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d9cb06759eca5a420072b937d2a2a670db474008;p=linux.git

net/mlx5: E-Switch, add a new prio to be used by the RDMA side

Create a new prio in the FDB, it will be used when inserting steering rules
into the FDB from the RDMA side. We create a new PRIO so rules from the
net side and rules from the RDMA side won't be inserted to the same PRIO,
each side has it's own sandbox to play in.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 8b96f71332d8..72d42cc3487a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -2478,6 +2478,13 @@ static int init_fdb_root_ns(struct mlx5_flow_steering *steering)
 	if (!steering->fdb_sub_ns)
 		return -ENOMEM;
 
+	maj_prio = fs_create_prio(&steering->fdb_root_ns->ns, FDB_BYPASS_PATH,
+				  1);
+	if (IS_ERR(maj_prio)) {
+		err = PTR_ERR(maj_prio);
+		goto out_err;
+	}
+
 	levels = 2 * FDB_MAX_PRIO * (FDB_MAX_CHAIN + 1);
 	maj_prio = fs_create_prio_chained(&steering->fdb_root_ns->ns,
 					  FDB_FAST_PATH,
diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h
index 3eeb04154317..fd91df3a4e09 100644
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -76,6 +76,7 @@ enum mlx5_flow_namespace_type {
 };
 
 enum {
+	FDB_BYPASS_PATH,
 	FDB_FAST_PATH,
 	FDB_SLOW_PATH,
 };