diff options
| author | Yevgeny Kliteynik <kliteyn@mellanox.com> | 2019-02-12 13:31:00 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2019-05-31 13:04:26 -0700 |
| commit | 1f6da30697d0e102f5ed983a2a4942df9875195a (patch) | |
| tree | 22598a7dc40ec58ea271ab042703136ab473bd2c /drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c | |
| parent | 0ccc171ea6a2fa34a6b898329c0a447c84e27057 (diff) | |
net/mlx5e: Geneve, Keep tunnel info as pointer to the original struct
In mlx5e encap entry structure, IP tunnel info data structure is copied
by value. This approach worked till now, but it breaks when there are
encapsulation options, such as in case of Geneve.
These options are stored in the structure that is allocated adjacent to
the IP tunnel info struct, and not pointed at by any field in that struct.
Therefore, when copying the struct by value, we loose the address of the
original struct and can't get to the encapsulation options.
Fix the problem by storing the pointer to the tunnel info data instead.
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c index fe5d4d7f15ed..2004d04c4c46 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c @@ -141,7 +141,8 @@ static int mlx5e_route_lookup_ipv6(struct mlx5e_priv *priv, return 0; } -static int mlx5e_gen_vxlan_header(char buf[], struct ip_tunnel_key *tun_key) +static int mlx5e_gen_vxlan_header(char buf[], + const struct ip_tunnel_key *tun_key) { __be32 tun_id = tunnel_id_to_key32(tun_key->tun_id); struct udphdr *udp = (struct udphdr *)(buf); @@ -155,7 +156,7 @@ static int mlx5e_gen_vxlan_header(char buf[], struct ip_tunnel_key *tun_key) return 0; } -static int mlx5e_gen_gre_header(char buf[], struct ip_tunnel_key *tun_key) +static int mlx5e_gen_gre_header(char buf[], const struct ip_tunnel_key *tun_key) { __be32 tun_id = tunnel_id_to_key32(tun_key->tun_id); int hdr_len; @@ -183,7 +184,7 @@ static int mlx5e_gen_ip_tunnel_header(char buf[], __u8 *ip_proto, struct mlx5e_encap_entry *e) { int err = 0; - struct ip_tunnel_key *key = &e->tun_info.key; + const struct ip_tunnel_key *key = &e->tun_info->key; if (e->tunnel_type == MLX5E_TC_TUNNEL_TYPE_VXLAN) { *ip_proto = IPPROTO_UDP; @@ -229,7 +230,7 @@ int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e) { int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); - struct ip_tunnel_key *tun_key = &e->tun_info.key; + const struct ip_tunnel_key *tun_key = &e->tun_info->key; struct net_device *out_dev, *route_dev; struct neighbour *n = NULL; struct flowi4 fl4 = {}; @@ -345,7 +346,7 @@ int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e) { int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); - struct ip_tunnel_key *tun_key = &e->tun_info.key; + const struct ip_tunnel_key *tun_key = &e->tun_info->key; struct net_device *out_dev, *route_dev; struct neighbour *n = NULL; struct flowi6 fl6 = {}; @@ -489,7 +490,7 @@ int mlx5e_tc_tun_init_encap_attr(struct net_device *tunnel_dev, e->tunnel_type = mlx5e_tc_tun_get_type(tunnel_dev); if (e->tunnel_type == MLX5E_TC_TUNNEL_TYPE_VXLAN) { - int dst_port = be16_to_cpu(e->tun_info.key.tp_dst); + int dst_port = be16_to_cpu(e->tun_info->key.tp_dst); if (!mlx5_vxlan_lookup_port(priv->mdev->vxlan, dst_port)) { NL_SET_ERR_MSG_MOD(extack, @@ -503,7 +504,7 @@ int mlx5e_tc_tun_init_encap_attr(struct net_device *tunnel_dev, e->tunnel_hlen = VXLAN_HLEN; } else if (e->tunnel_type == MLX5E_TC_TUNNEL_TYPE_GRETAP) { e->reformat_type = MLX5_REFORMAT_TYPE_L2_TO_NVGRE; - e->tunnel_hlen = gre_calc_hlen(e->tun_info.key.tun_flags); + e->tunnel_hlen = gre_calc_hlen(e->tun_info->key.tun_flags); } else { e->reformat_type = -1; e->tunnel_hlen = -1; |