diff options
| author | Or Gerlitz <ogerlitz@mellanox.com> | 2016-07-01 14:50:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-07-02 21:40:39 +0300 |
| commit | 3aa335724f0793027c87fae03ecf0a297fc04b29 (patch) | |
| tree | 833e751dc07e09bea5648866b85913b0d433e78d | |
| parent | 69697b6e2086b5860bd2d216bc4c6c49d84d73ff (diff) | |
| download | linux-3aa335724f0793027c87fae03ecf0a297fc04b29.tar.xz | |
net/mlx5: E-Switch, Add miss rule for offloads mode
In the sriov offloads mode, packets that are not matched by any other
rule should be sent towards the e-switch manager for further processing.
Add such "miss" rule which matches ANY packet as the last rule in the
e-switch FDB and programs the HW to send the packet to vport 0 where
the e-switch manager runs.
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>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 40 |
2 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index 2360180c26c2..8eed33f20ca3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -144,6 +144,7 @@ struct mlx5_eswitch_fdb { struct offloads_fdb { struct mlx5_flow_group *send_to_vport_grp; struct mlx5_flow_group *miss_grp; + struct mlx5_flow_rule *miss_rule; } offloads; }; }; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index c6b28df3168f..e3d81aeac83b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -38,6 +38,39 @@ #include "mlx5_core.h" #include "eswitch.h" +static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw) +{ + struct mlx5_flow_destination dest; + struct mlx5_flow_rule *flow_rule = NULL; + u32 *match_v, *match_c; + int err = 0; + + match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL); + match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL); + if (!match_v || !match_c) { + esw_warn(esw->dev, "FDB: Failed to alloc match parameters\n"); + err = -ENOMEM; + goto out; + } + + dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; + dest.vport_num = 0; + + flow_rule = mlx5_add_flow_rule(esw->fdb_table.fdb, 0, match_c, match_v, + MLX5_FLOW_CONTEXT_ACTION_FWD_DEST, 0, &dest); + if (IS_ERR(flow_rule)) { + err = PTR_ERR(flow_rule); + esw_warn(esw->dev, "FDB: Failed to add miss flow rule err %d\n", err); + goto out; + } + + esw->fdb_table.offloads.miss_rule = flow_rule; +out: + kfree(match_v); + kfree(match_c); + return err; +} + #define MAX_PF_SQ 256 int esw_create_offloads_fdb_table(struct mlx5_eswitch *esw, int nvports) @@ -110,8 +143,14 @@ int esw_create_offloads_fdb_table(struct mlx5_eswitch *esw, int nvports) } esw->fdb_table.offloads.miss_grp = g; + err = esw_add_fdb_miss_rule(esw); + if (err) + goto miss_rule_err; + return 0; +miss_rule_err: + mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp); miss_err: mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp); send_vport_err: @@ -128,6 +167,7 @@ void esw_destroy_offloads_fdb_table(struct mlx5_eswitch *esw) return; esw_debug(esw->dev, "Destroy offloads FDB Table\n"); + mlx5_del_flow_rule(esw->fdb_table.offloads.miss_rule); mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp); mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp); |