diff options
| author | Or Har-Toov <ohartoov@nvidia.com> | 2026-01-15 15:26:45 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-01-18 19:36:59 +0300 |
| commit | 18ea78e2ae83d1d86a72d21d9511927e57e2c0e1 (patch) | |
| tree | 43df3fe33097d7958b42b025299e91824cbe73a5 | |
| parent | ebc2164a4cd4314503f1a0c8e7aaf76d7e5fa211 (diff) | |
| download | linux-18ea78e2ae83d1d86a72d21d9511927e57e2c0e1.tar.xz | |
IB/mlx5: Fix port speed query for representors
When querying speed information for a representor in switchdev mode,
the code previously used the first device in the eswitch, which may not
match the device that actually owns the representor. In setups such as
multi-port eswitch or LAG, this led to incorrect port attributes being
reported.
Fix this by retrieving the correct core device from the representor's
eswitch before querying its port attributes.
Fixes: 27f9e0ccb6da ("net/mlx5: Lag, Add single RDMA device in multiport mode")
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Link: https://patch.msgid.link/20260115-port-speed-query-fix-v2-1-3bde6a3c78e7@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index e83a5f12e6bc..eba023b7af0f 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -561,12 +561,20 @@ static int mlx5_query_port_roce(struct ib_device *device, u32 port_num, * of an error it will still be zeroed out. * Use native port in case of reps */ - if (dev->is_rep) - err = mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN, - 1, 0); - else - err = mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN, - mdev_port_num, 0); + if (dev->is_rep) { + struct mlx5_eswitch_rep *rep; + + rep = dev->port[port_num - 1].rep; + if (rep) { + mdev = mlx5_eswitch_get_core_dev(rep->esw); + WARN_ON(!mdev); + } + mdev_port_num = 1; + } + + err = mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN, + mdev_port_num, 0); + if (err) goto out; ext = !!MLX5_GET_ETH_PROTO(ptys_reg, out, true, eth_proto_capability); |