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IB/mlx5: Add support for multi underlay QP

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Set underlay QPN as part of flow rule when it's applicable.

There is one root flow table in the NIC RX namespace and all the
underlay QPs steer the traffic to this flow table.
In order to prevent QP to get traffic which is not target to its
underlay QP, we need to set the underlay QP number as part of
the steering matching.

Note:
When multicast traffic is sent the QPN filtering is done by the firmware
as some early step. Adding the QPN match on the flow table entry is
wrong as by that time the target QPN holds the multicast address (e.g.
FF(s)) and it won't match.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Yishai Hadas 2017-08-17 15:52:33 +03:00 • committed by Doug Ledford
parent 7b4cdaae73
commit a550ddfc54
2 changed files with 48 additions and 9 deletions
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8
include/linux/mlx5/mlx5_ifc.h
View file

@ -295,8 +295,10 @@ struct mlx5_ifc_flow_table_fields_supported_bits {
u8 inner_tcp_dport[0x1];
u8 inner_tcp_flags[0x1];
u8 reserved_at_37[0x9];
u8 reserved_at_40[0x1a];
u8 bth_dst_qp[0x1];
u8 reserved_at_40[0x40];
u8 reserved_at_5b[0x25];
};
struct mlx5_ifc_flow_table_prop_layout_bits {
@ -432,7 +434,9 @@ struct mlx5_ifc_fte_match_set_misc_bits {
u8 reserved_at_100[0xc];
u8 inner_ipv6_flow_label[0x14];
u8 reserved_at_120[0xe0];
u8 reserved_at_120[0x28];
u8 bth_dst_qp[0x18];
u8 reserved_at_160[0xa0];
};
struct mlx5_ifc_cmd_pas_bits {