net/mlx5: E-Switch, Disallow vlan/spoofcheck setup if not being esw manager

[ Upstream commit a8d70a054a718b63058b3d3ac58b6181815e4289 ]

In smartnic env, if the host (PF) driver is not an e-switch manager, we
are not allowed to apply eswitch ports setups such as vlan (VST),
spoof-checks, min/max rate or state.

Make sure we are eswitch manager when coming to issue these callbacks
and err otherwise.

Also fix the definition of ESW_ALLOWED to rely on eswitch_manager
capability and on the vport_group_manger.

Operations on the VF nic vport context, such as setting a mac or reading
the vport counters are allowed to the PF in this scheme.

The modify nic vport guid code was modified to omit checking the
nic_vport_node_guid_modify eswitch capability.
The reason for doing so is that modifying node guid requires vport group
manager capability, and there's no need to check further capabilities.

1. set_vf_vlan     - disallowed
2. set_vf_spoofchk - disallowed
3. set_vf_mac      - allowed
4. get_vf_config   - allowed
5. set_vf_trust    - disallowed
6. set_vf_rate     - disallowed
7. get_vf_stat     - allowed
8. set_vf_link_state - disallowed

Fixes: f942380c1239 ('net/mlx5: E-Switch, Vport ingress/egress ACLs rules for spoofchk')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Tested-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index f697084937c381113632317f263d0af6abef3eee..de72b66df3e587d88aec9353c344afd66a8d08ee 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1525,17 +1525,15 @@ static void esw_disable_vport(struct mlx5_eswitch *esw, int vport_num)
 }
 
 /* Public E-Switch API */
-#define ESW_ALLOWED(esw) ((esw) && MLX5_VPORT_MANAGER((esw)->dev))
+#define ESW_ALLOWED(esw) ((esw) && MLX5_ESWITCH_MANAGER((esw)->dev))
+
 
 int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode)
 {
        int err;
        int i, enabled_events;
 
-       if (!ESW_ALLOWED(esw))
-               return 0;
-
-       if (!MLX5_ESWITCH_MANAGER(esw->dev) ||
+       if (!ESW_ALLOWED(esw) ||
            !MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ft_support)) {
                esw_warn(esw->dev, "E-Switch FDB is not supported, aborting ...\n");
                return -EOPNOTSUPP;
@@ -1728,7 +1726,7 @@ int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
        u64 node_guid;
        int err = 0;
 
-       if (!ESW_ALLOWED(esw))
+       if (!MLX5_CAP_GEN(esw->dev, vport_group_manager))
                return -EPERM;
        if (!LEGAL_VPORT(esw, vport) || is_multicast_ether_addr(mac))
                return -EINVAL;
@@ -1805,7 +1803,7 @@ int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
 {
        struct mlx5_vport *evport;
 
-       if (!ESW_ALLOWED(esw))
+       if (!MLX5_CAP_GEN(esw->dev, vport_group_manager))
                return -EPERM;
        if (!LEGAL_VPORT(esw, vport))
                return -EINVAL;

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
index 71153c0f16054a2e987972b067c0070a54863e88..aa9a88e84e3bf5c1056ee178b87a659020d5e041 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
@@ -549,8 +549,6 @@ int mlx5_modify_nic_vport_node_guid(struct mlx5_core_dev *mdev,
                return -EINVAL;
        if (!MLX5_CAP_GEN(mdev, vport_group_manager))
                return -EACCES;
-       if (!MLX5_CAP_ESW(mdev, nic_vport_node_guid_modify))
-               return -EOPNOTSUPP;
 
        in = kvzalloc(inlen, GFP_KERNEL);
        if (!in)