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net/mlx4_core: Add helper function to translate B0 steering rules to DMFS 

A pre-step for supporting guests that use B0 steering over a hypervisor
that runs in DMFS (device managed flow steering mode). Add helper function
which allows to translate L2 attachments / detachments provided in B0 mode
to DMFS rules.

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hadar Hen Zion 2013-04-11 01:56:40 +00:00 committed by David S. Miller
parent 4b49f58fff
commit fd91c49fb0
2 changed files with 33 additions and 22 deletions
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51
drivers/net/ethernet/mellanox/mlx4/mcg.c
View File

@ -1125,28 +1125,11 @@ static int mlx4_QP_ATTACH(struct mlx4_dev *dev, struct mlx4_qp *qp,
return err;
}
int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
u8 port, int block_mcast_loopback,
enum mlx4_protocol prot, u64 *reg_id)
int mlx4_trans_to_dmfs_attach(struct mlx4_dev *dev, struct mlx4_qp *qp,
u8 gid[16], u8 port,
int block_mcast_loopback,
enum mlx4_protocol prot, u64 *reg_id)
{
switch (dev->caps.steering_mode) {
case MLX4_STEERING_MODE_A0:
if (prot == MLX4_PROT_ETH)
return 0;
case MLX4_STEERING_MODE_B0:
if (prot == MLX4_PROT_ETH)
gid[7] |= (MLX4_MC_STEER << 1);
if (mlx4_is_mfunc(dev))
return mlx4_QP_ATTACH(dev, qp, gid, 1,
block_mcast_loopback, prot);
return mlx4_qp_attach_common(dev, qp, gid,
block_mcast_loopback, prot,
MLX4_MC_STEER);
case MLX4_STEERING_MODE_DEVICE_MANAGED: {
struct mlx4_spec_list spec = { {NULL} };
__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
@ -1180,8 +1163,32 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
list_add_tail(&spec.list, &rule.list);
return mlx4_flow_attach(dev, &rule, reg_id);
}
}
int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
u8 port, int block_mcast_loopback,
enum mlx4_protocol prot, u64 *reg_id)
{
switch (dev->caps.steering_mode) {
case MLX4_STEERING_MODE_A0:
if (prot == MLX4_PROT_ETH)
return 0;
case MLX4_STEERING_MODE_B0:
if (prot == MLX4_PROT_ETH)
gid[7] |= (MLX4_MC_STEER << 1);
if (mlx4_is_mfunc(dev))
return mlx4_QP_ATTACH(dev, qp, gid, 1,
block_mcast_loopback, prot);
return mlx4_qp_attach_common(dev, qp, gid,
block_mcast_loopback, prot,
MLX4_MC_STEER);
case MLX4_STEERING_MODE_DEVICE_MANAGED:
return mlx4_trans_to_dmfs_attach(dev, qp, gid, port,
block_mcast_loopback,
prot, reg_id);
default:
return -EINVAL;
}

4
drivers/net/ethernet/mellanox/mlx4/mlx4.h
View File

@ -1190,6 +1190,10 @@ int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
int block_mcast_loopback, enum mlx4_protocol prot,
enum mlx4_steer_type steer);
int mlx4_trans_to_dmfs_attach(struct mlx4_dev *dev, struct mlx4_qp *qp,
u8 gid[16], u8 port,
int block_mcast_loopback,
enum mlx4_protocol prot, u64 *reg_id);
int mlx4_SET_MCAST_FLTR_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,