diff mbox series

[mlx5-next,1/4] net/mlx5: Introduce egress acl forward-to-vport capability

Message ID 20200303001522.54067-2-saeedm@mellanox.com (mailing list archive)
State Not Applicable
Headers show
Series Mellanox, mlx5 next updates 2020-03-02 | expand

Commit Message

Saeed Mahameed March 3, 2020, 12:15 a.m. UTC 
From: Vu Pham <vuhuong@mellanox.com>

Add HCA_CAP.egress_acl_forward_to_vport field to check whether HW
supports e-switch vport's egress acl to forward packets to other
e-switch vport or not.

By default E-Switch egress ACL forwards eswitch vports egress packets
to their corresponding NIC/VF vports.

With this cap enabled, the driver is allowed to alter this behavior
and forward packets to arbitrary NIC/VF vports with the following
limitations:

   a. Multiple processing paths are supported if all of the following
      conditions are met:
      - HCA_CAP.egress_acl_forward_to_vport is set ==1.
      - A destination of type Flow Table only appears once, as the
        last destination in the list.
      - Vport destination is supported if
        HCA_CAP.egress_acl_forward_to_vport==1. Vport must not be
        the Uplink.
   b. Flow_tag not supported.
   c. This table is only applicable after an FDB table is created.
   d. Push VLAN action is not supported.
   e. Pop VLAN action cannot be added concurrently to this table and
      FDB table.

This feature will be used during port failover in bonding scenario
where two VFs representors are bonded to handle failover egress traffic
(VM's ingress/receive traffic).

Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 include/linux/mlx5/mlx5_ifc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index ff8c9d527bb4..ea4a28ff5281 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -738,7 +738,7 @@  struct mlx5_ifc_flow_table_eswitch_cap_bits {
 	u8      flow_source[0x1];
 	u8      reserved_at_18[0x2];
 	u8      multi_fdb_encap[0x1];
-	u8      reserved_at_1b[0x1];
+	u8      egress_acl_forward_to_vport[0x1];
 	u8      fdb_multi_path_to_table[0x1];
 	u8      reserved_at_1d[0x3];