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net/mlx5: Bridge, fix multicast packets sent to uplink

Browse source 
To enable multicast packets which are offloaded in bridge multicast
offload mode to be sent also to uplink, FTE bit uplink_hairpin_en should
be set. Add this bit to FTE for the bridge multicast offload rules.

Fixes: 18c2916cee ("net/mlx5: Bridge, snoop igmp/mld packets")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Moshe Shemesh 2023-12-30 22:40:37 +02:00 committed by Saeed Mahameed
parent cc80915877
commit ec7cc38ef9
4 changed files with 7 additions and 1 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_mcast.c
View file

@ -83,6 +83,7 @@ mlx5_esw_bridge_mdb_flow_create(u16 esw_owner_vhca_id, struct mlx5_esw_bridge_md
i++;
}
rule_spec->flow_context.flags |= FLOW_CONTEXT_UPLINK_HAIRPIN_EN;
rule_spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
dmac_v = MLX5_ADDR_OF(fte_match_param, rule_spec->match_value, outer_headers.dmac_47_16);
ether_addr_copy(dmac_v, entry->key.addr);
@ -587,6 +588,7 @@ mlx5_esw_bridge_mcast_vlan_flow_create(u16 vlan_proto, struct mlx5_esw_bridge_po
if (!rule_spec)
return ERR_PTR(-ENOMEM);
rule_spec->flow_context.flags |= FLOW_CONTEXT_UPLINK_HAIRPIN_EN;
rule_spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT;
@ -662,6 +664,7 @@ mlx5_esw_bridge_mcast_fwd_flow_create(struct mlx5_esw_bridge_port *port)
dest.vport.flags = MLX5_FLOW_DEST_VPORT_VHCA_ID;
dest.vport.vhca_id = port->esw_owner_vhca_id;
}
rule_spec->flow_context.flags |= FLOW_CONTEXT_UPLINK_HAIRPIN_EN;
handle = mlx5_add_flow_rules(port->mcast.ft, rule_spec, &flow_act, &dest, 1);
kvfree(rule_spec);

2
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
View file

@ -566,6 +566,8 @@ static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
fte->flow_context.flow_tag);
MLX5_SET(flow_context, in_flow_context, flow_source,
fte->flow_context.flow_source);
MLX5_SET(flow_context, in_flow_context, uplink_hairpin_en,
!!(fte->flow_context.flags & FLOW_CONTEXT_UPLINK_HAIRPIN_EN));
MLX5_SET(flow_context, in_flow_context, extended_destination,
extended_dest);

1
include/linux/mlx5/fs.h
View file

@ -132,6 +132,7 @@ struct mlx5_flow_handle;
enum {
FLOW_CONTEXT_HAS_TAG = BIT(0),
FLOW_CONTEXT_UPLINK_HAIRPIN_EN = BIT(1),
};
struct mlx5_flow_context {

2
include/linux/mlx5/mlx5_ifc.h
View file

@ -3576,7 +3576,7 @@ struct mlx5_ifc_flow_context_bits {
u8 action[0x10];
u8 extended_destination[0x1];
u8 reserved_at_81[0x1];
u8 uplink_hairpin_en[0x1];
u8 flow_source[0x2];
u8 encrypt_decrypt_type[0x4];
u8 destination_list_size[0x18];