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net/mlx4: Move the tunnel steering helper function to mlx4_core 

Move the function which we use to set VXLAN DMFS (flow-steering) rules
from mlx4_en to mlx4_core. This refactoring will allow the mlx4_ib driver
to call the helper for the use case of user-space RAW Ethernet QPs, such
that they can serve VXLAN traffic too.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Or Gerlitz 2014-08-27 16:47:48 +03:00 committed by David S. Miller
parent 362b37be01
commit b95089d00c
3 changed files with 43 additions and 29 deletions
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31
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View File

@ -474,39 +474,12 @@ static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, unsigned char *ad
int qpn, u64 *reg_id)
{
int err;
struct mlx4_spec_list spec_eth_outer = { {NULL} };
struct mlx4_spec_list spec_vxlan = { {NULL} };
struct mlx4_spec_list spec_eth_inner = { {NULL} };
struct mlx4_net_trans_rule rule = {
.queue_mode = MLX4_NET_TRANS_Q_FIFO,
.exclusive = 0,
.allow_loopback = 1,
.promisc_mode = MLX4_FS_REGULAR,
.priority = MLX4_DOMAIN_NIC,
};
__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
return 0; /* do nothing */
rule.port = priv->port;
rule.qpn = qpn;
INIT_LIST_HEAD(&rule.list);
spec_eth_outer.id = MLX4_NET_TRANS_RULE_ID_ETH;
memcpy(spec_eth_outer.eth.dst_mac, addr, ETH_ALEN);
memcpy(spec_eth_outer.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
spec_vxlan.id = MLX4_NET_TRANS_RULE_ID_VXLAN; /* any vxlan header */
spec_eth_inner.id = MLX4_NET_TRANS_RULE_ID_ETH; /* any inner eth header */
list_add_tail(&spec_eth_outer.list, &rule.list);
list_add_tail(&spec_vxlan.list, &rule.list);
list_add_tail(&spec_eth_inner.list, &rule.list);
err = mlx4_flow_attach(priv->mdev->dev, &rule, reg_id);
err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn,
MLX4_DOMAIN_NIC, reg_id);
if (err) {
en_err(priv, "failed to add vxlan steering rule, err %d\n", err);
return err;

38
drivers/net/ethernet/mellanox/mlx4/mcg.c
View File

@ -1020,6 +1020,44 @@ int mlx4_flow_detach(struct mlx4_dev *dev, u64 reg_id)
}
EXPORT_SYMBOL_GPL(mlx4_flow_detach);
int mlx4_tunnel_steer_add(struct mlx4_dev *dev, unsigned char *addr,
int port, int qpn, u16 prio, u64 *reg_id)
{
int err;
struct mlx4_spec_list spec_eth_outer = { {NULL} };
struct mlx4_spec_list spec_vxlan = { {NULL} };
struct mlx4_spec_list spec_eth_inner = { {NULL} };
struct mlx4_net_trans_rule rule = {
.queue_mode = MLX4_NET_TRANS_Q_FIFO,
.exclusive = 0,
.allow_loopback = 1,
.promisc_mode = MLX4_FS_REGULAR,
};
__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
rule.port = port;
rule.qpn = qpn;
rule.priority = prio;
INIT_LIST_HEAD(&rule.list);
spec_eth_outer.id = MLX4_NET_TRANS_RULE_ID_ETH;
memcpy(spec_eth_outer.eth.dst_mac, addr, ETH_ALEN);
memcpy(spec_eth_outer.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
spec_vxlan.id = MLX4_NET_TRANS_RULE_ID_VXLAN; /* any vxlan header */
spec_eth_inner.id = MLX4_NET_TRANS_RULE_ID_ETH; /* any inner eth header */
list_add_tail(&spec_eth_outer.list, &rule.list);
list_add_tail(&spec_vxlan.list, &rule.list);
list_add_tail(&spec_eth_inner.list, &rule.list);
err = mlx4_flow_attach(dev, &rule, reg_id);
return err;
}
EXPORT_SYMBOL(mlx4_tunnel_steer_add);
int mlx4_FLOW_STEERING_IB_UC_QP_RANGE(struct mlx4_dev *dev, u32 min_range_qpn,
u32 max_range_qpn)
{

3
include/linux/mlx4/device.h
View File

@ -1196,6 +1196,9 @@ int mlx4_map_sw_to_hw_steering_id(struct mlx4_dev *dev,
enum mlx4_net_trans_rule_id id);
int mlx4_hw_rule_sz(struct mlx4_dev *dev, enum mlx4_net_trans_rule_id id);
int mlx4_tunnel_steer_add(struct mlx4_dev *dev, unsigned char *addr,
int port, int qpn, u16 prio, u64 *reg_id);
void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port,
int i, int val);