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net/mlx5: E-Switch, Add API to configure rules for the offloaded mode 

This allows for upper levels in the driver, e.g the TC offload code to add
e-switch offloaded steering rules. The caller provides the rule spec for
matching, action, source and destination vports.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Or Gerlitz 2016-07-14 10:32:41 +03:00 committed by David S. Miller
parent 1033665e63
commit 3d80d1a2f5
2 changed files with 49 additions and 0 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -222,6 +222,12 @@ int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
int vport,
struct ifla_vf_stats *vf_stats);
struct mlx5_flow_spec;
struct mlx5_flow_rule *
mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
struct mlx5_flow_spec *spec,
u32 action, u32 src_vport, u32 dst_vport);
struct mlx5_flow_rule *
mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, int vport, u32 tirn);

43
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View File

@ -43,6 +43,49 @@ enum {
FDB_SLOW_PATH
};
struct mlx5_flow_rule *
mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
struct mlx5_flow_spec *spec,
u32 action, u32 src_vport, u32 dst_vport)
{
struct mlx5_flow_destination dest = { 0 };
struct mlx5_fc *counter = NULL;
struct mlx5_flow_rule *rule;
void *misc;
if (esw->mode != SRIOV_OFFLOADS)
return ERR_PTR(-EOPNOTSUPP);
if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
dest.vport_num = dst_vport;
action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
} else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
counter = mlx5_fc_create(esw->dev, true);
if (IS_ERR(counter))
return ERR_CAST(counter);
dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
dest.counter = counter;
}
misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);
MLX5_SET(fte_match_set_misc, misc, source_port, src_vport);
misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS |
MLX5_MATCH_MISC_PARAMETERS;
rule = mlx5_add_flow_rule((struct mlx5_flow_table *)esw->fdb_table.fdb,
spec, action, 0, &dest);
if (IS_ERR(rule))
mlx5_fc_destroy(esw->dev, counter);
return rule;
}
static struct mlx5_flow_rule *
mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *esw, int vport, u32 sqn)
{