diff options
| author | Aya Levin <ayal@mellanox.com> | 2020-07-07 14:06:11 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-07-09 02:15:58 +0300 |
| commit | 530c8632b547ff72f11ff83654b22462a73f1f7b (patch) | |
| tree | 21f1bcce4745438e00b3e1a936d7fe0e3f322f50 /drivers/infiniband | |
| parent | 04340645f69ab7abb6f9052688a60f0213b3f79c (diff) | |
| download | linux-530c8632b547ff72f11ff83654b22462a73f1f7b.tar.xz | |
IB/mlx5: Fix 50G per lane indication
Some released FW versions mistakenly don't set the capability that 50G per
lane link-modes are supported for VFs (ptys_extended_ethernet capability
bit).
Use PTYS.ext_eth_proto_capability instead, as this indication is always
accurate. If PTYS.ext_eth_proto_capability is valid
(has a non-zero value) conclude that the HCA supports 50G per lane.
Otherwise, conclude that the HCA doesn't support 50G per lane.
Fixes: 08e8676f1607 ("IB/mlx5: Add support for 50Gbps per lane link modes")
Link: https://lore.kernel.org/r/20200707110612.882962-3-leon@kernel.org
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 343a8b8361e7..6f99ed03d88e 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -511,7 +511,7 @@ static int mlx5_query_port_roce(struct ib_device *device, u8 port_num, mdev_port_num); if (err) goto out; - ext = MLX5_CAP_PCAM_FEATURE(dev->mdev, ptys_extended_ethernet); + ext = !!MLX5_GET_ETH_PROTO(ptys_reg, out, true, eth_proto_capability); eth_prot_oper = MLX5_GET_ETH_PROTO(ptys_reg, out, ext, eth_proto_oper); props->active_width = IB_WIDTH_4X; |