net/mlx4_core: Add basic support for TCP/IP offloads under tunneling
Add the low-level device commands and definitions used for TCP/IP HW offloads
of tunneled/vxlan traffic which are supported by the ConnectX3-pro NIC.
This is done through the following elements:
- read tunneling device caps in QUERY_DEV_CAP
- add helper function to do SET_PORT for tunneling
- add DMFS VXLAN steering rule definitions
- add CQE and WQE checksum offload field definitions
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 294b7c5..c99ecf6 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -119,6 +119,11 @@
}
enum {
+ MLX4_TUNNEL_OFFLOAD_MODE_NONE,
+ MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
+};
+
+enum {
MLX4_DEV_CAP_FLAG_RC = 1LL << 0,
MLX4_DEV_CAP_FLAG_UC = 1LL << 1,
MLX4_DEV_CAP_FLAG_UD = 1LL << 2,
@@ -160,7 +165,8 @@
MLX4_DEV_CAP_FLAG2_TS = 1LL << 5,
MLX4_DEV_CAP_FLAG2_VLAN_CONTROL = 1LL << 6,
MLX4_DEV_CAP_FLAG2_FSM = 1LL << 7,
- MLX4_DEV_CAP_FLAG2_UPDATE_QP = 1LL << 8
+ MLX4_DEV_CAP_FLAG2_UPDATE_QP = 1LL << 8,
+ MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS = 1LL << 9
};
enum {
@@ -455,6 +461,7 @@
u32 function_caps; /* VFs must be aware of these */
u16 hca_core_clock;
u64 phys_port_id[MLX4_MAX_PORTS + 1];
+ int tunnel_offload_mode;
};
struct mlx4_buf_list {
@@ -909,6 +916,7 @@
MLX4_NET_TRANS_RULE_ID_IPV4,
MLX4_NET_TRANS_RULE_ID_TCP,
MLX4_NET_TRANS_RULE_ID_UDP,
+ MLX4_NET_TRANS_RULE_ID_VXLAN,
MLX4_NET_TRANS_RULE_NUM, /* should be last */
};
@@ -966,6 +974,12 @@
u8 dst_gid_msk[16];
};
+struct mlx4_spec_vxlan {
+ __be32 vni;
+ __be32 vni_mask;
+
+};
+
struct mlx4_spec_list {
struct list_head list;
enum mlx4_net_trans_rule_id id;
@@ -974,6 +988,7 @@
struct mlx4_spec_ib ib;
struct mlx4_spec_ipv4 ipv4;
struct mlx4_spec_tcp_udp tcp_udp;
+ struct mlx4_spec_vxlan vxlan;
};
};
@@ -1060,6 +1075,15 @@
__be32 src_ip_msk;
} __packed;
+struct mlx4_net_trans_rule_hw_vxlan {
+ u8 size;
+ u8 rsvd;
+ __be16 id;
+ __be32 rsvd1;
+ __be32 vni;
+ __be32 vni_mask;
+} __packed;
+
struct _rule_hw {
union {
struct {
@@ -1071,9 +1095,19 @@
struct mlx4_net_trans_rule_hw_ib ib;
struct mlx4_net_trans_rule_hw_ipv4 ipv4;
struct mlx4_net_trans_rule_hw_tcp_udp tcp_udp;
+ struct mlx4_net_trans_rule_hw_vxlan vxlan;
};
};
+enum {
+ VXLAN_STEER_BY_OUTER_MAC = 1 << 0,
+ VXLAN_STEER_BY_OUTER_VLAN = 1 << 1,
+ VXLAN_STEER_BY_VSID_VNI = 1 << 2,
+ VXLAN_STEER_BY_INNER_MAC = 1 << 3,
+ VXLAN_STEER_BY_INNER_VLAN = 1 << 4,
+};
+
+
int mlx4_flow_steer_promisc_add(struct mlx4_dev *dev, u8 port, u32 qpn,
enum mlx4_net_trans_promisc_mode mode);
int mlx4_flow_steer_promisc_remove(struct mlx4_dev *dev, u8 port,
@@ -1096,6 +1130,7 @@
int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc);
int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
u8 *pg, u16 *ratelimit);
+int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering);
int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan);