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net/mlx5: Switch vport HCA cap helpers to kvzalloc

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mlx5_vport_set_other_func_cap() and mlx5_vport_get_vhca_id() allocate
command buffers that embed the HCA capability union, exceeding 4KiB.
Use kvzalloc/kvfree so the allocation can fall back to vmalloc when
contiguous memory is scarce.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260518071356.345723-5-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Moshe Shemesh 2026-05-18 10:13:52 +03:00 committed by Paolo Abeni
parent 3fefa7e7c1
commit 62af408fd7
1 changed files with 4 additions and 4 deletions
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8
drivers/net/ethernet/mellanox/mlx5/core/vport.c
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@ -1336,7 +1336,7 @@ int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id)
if (mlx5_esw_vport_vhca_id(dev->priv.eswitch, vport, vhca_id))
return 0;
query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
query_ctx = kvzalloc(query_out_sz, GFP_KERNEL);
if (!query_ctx)
return -ENOMEM;
@ -1348,7 +1348,7 @@ int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id)
*vhca_id = MLX5_GET(cmd_hca_cap, hca_caps, vhca_id);
out_free:
kfree(query_ctx);
kvfree(query_ctx);
return err;
}
EXPORT_SYMBOL_GPL(mlx5_vport_get_vhca_id);
@ -1363,7 +1363,7 @@ int mlx5_vport_set_other_func_cap(struct mlx5_core_dev *dev, const void *hca_cap
void *set_ctx;
int ret;
set_ctx = kzalloc(set_sz, GFP_KERNEL);
set_ctx = kvzalloc(set_sz, GFP_KERNEL);
if (!set_ctx)
return -ENOMEM;
@ -1392,6 +1392,6 @@ int mlx5_vport_set_other_func_cap(struct mlx5_core_dev *dev, const void *hca_cap
MLX5_SET(set_hca_cap_in, set_ctx, function_id, function_id);
ret = mlx5_cmd_exec_in(dev, set_hca_cap, set_ctx);
kfree(set_ctx);
kvfree(set_ctx);
return ret;
}