diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 2a9289b8a33b..ae07fe6473bb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1223,6 +1223,7 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, struct flowi4 fl4 = {}; char *encap_header; int ttl, err; + u8 nud_state; if (max_encap_size < ipv4_encap_size) { mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n", @@ -1252,7 +1253,12 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, if (err) goto out; - if (!(n->nud_state & NUD_VALID)) { + read_lock_bh(&n->lock); + nud_state = n->nud_state; + ether_addr_copy(e->h_dest, n->ha); + read_unlock_bh(&n->lock); + + if (!(nud_state & NUD_VALID)) { pr_warn("%s: can't offload, neighbour to %pI4 invalid\n", __func__, &fl4.daddr); err = -EOPNOTSUPP; goto out; @@ -1261,8 +1267,6 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, e->n = n; e->out_dev = out_dev; - neigh_ha_snapshot(e->h_dest, n, out_dev); - switch (e->tunnel_type) { case MLX5_HEADER_TYPE_VXLAN: gen_vxlan_header_ipv4(out_dev, encap_header, @@ -1297,6 +1301,7 @@ static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv, struct flowi6 fl6 = {}; char *encap_header; int err, ttl = 0; + u8 nud_state; if (max_encap_size < ipv6_encap_size) { mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n", @@ -1327,7 +1332,12 @@ static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv, if (err) goto out; - if (!(n->nud_state & NUD_VALID)) { + read_lock_bh(&n->lock); + nud_state = n->nud_state; + ether_addr_copy(e->h_dest, n->ha); + read_unlock_bh(&n->lock); + + if (!(nud_state & NUD_VALID)) { pr_warn("%s: can't offload, neighbour to %pI6 invalid\n", __func__, &fl6.daddr); err = -EOPNOTSUPP; goto out; @@ -1336,8 +1346,6 @@ static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv, e->n = n; e->out_dev = out_dev; - neigh_ha_snapshot(e->h_dest, n, out_dev); - switch (e->tunnel_type) { case MLX5_HEADER_TYPE_VXLAN: gen_vxlan_header_ipv6(out_dev, encap_header, |