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| author | Alex Vesker <valex@mellanox.com> | 2020-03-05 14:38:41 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-10 14:41:35 -0300 |
| commit | 41e684ef3f37ce6e5eac3fb5b9c7c1853f4b0447 (patch) | |
| tree | d5fbc89fa8a42614cf6fb0cf90770d450b4f268a | |
| parent | 0897f301bc285409ab6453839fa6a43d9ceb26e0 (diff) | |
| download | lwn-41e684ef3f37ce6e5eac3fb5b9c7c1853f4b0447.tar.gz lwn-41e684ef3f37ce6e5eac3fb5b9c7c1853f4b0447.zip | |
IB/mlx5: Replace tunnel mpls capability bits for tunnel_offloads
Until now the flex parser capability was used in ib_query_device() to
indicate tunnel_offloads_caps support for mpls_over_gre/mpls_over_udp.
Newer devices and firmware will have configurations with the flexparser
but without mpls support.
Testing for the flex parser capability was a mistake, the tunnel_stateless
capability was intended for detecting mpls and was introduced at the same
time as the flex parser capability.
Otherwise userspace will be incorrectly informed that a future device
supports MPLS when it does not.
Link: https://lore.kernel.org/r/20200305123841.196086-1-leon@kernel.org
Cc: <stable@vger.kernel.org> # 4.17
Fixes: e818e255a58d ("IB/mlx5: Expose MPLS related tunneling offloads")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Reviewed-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 6 | ||||
| -rw-r--r-- | include/linux/mlx5/mlx5_ifc.h | 6 |
2 files changed, 7 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index eba7604eaa76..9c3993c7e9a1 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1192,12 +1192,10 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, if (MLX5_CAP_ETH(mdev, tunnel_stateless_gre)) resp.tunnel_offloads_caps |= MLX5_IB_TUNNELED_OFFLOADS_GRE; - if (MLX5_CAP_GEN(mdev, flex_parser_protocols) & - MLX5_FLEX_PROTO_CW_MPLS_GRE) + if (MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_gre)) resp.tunnel_offloads_caps |= MLX5_IB_TUNNELED_OFFLOADS_MPLS_GRE; - if (MLX5_CAP_GEN(mdev, flex_parser_protocols) & - MLX5_FLEX_PROTO_CW_MPLS_UDP) + if (MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_udp)) resp.tunnel_offloads_caps |= MLX5_IB_TUNNELED_OFFLOADS_MPLS_UDP; } diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index f9bcbe653fda..f3a7189f9d6d 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -877,7 +877,11 @@ struct mlx5_ifc_per_protocol_networking_offload_caps_bits { u8 swp_csum[0x1]; u8 swp_lso[0x1]; u8 cqe_checksum_full[0x1]; - u8 reserved_at_24[0x5]; + u8 tunnel_stateless_geneve_tx[0x1]; + u8 tunnel_stateless_mpls_over_udp[0x1]; + u8 tunnel_stateless_mpls_over_gre[0x1]; + u8 tunnel_stateless_vxlan_gpe[0x1]; + u8 tunnel_stateless_ipv4_over_vxlan[0x1]; u8 tunnel_stateless_ip_over_ip[0x1]; u8 reserved_at_2a[0x6]; u8 max_vxlan_udp_ports[0x8]; |