From 073ff3c8e6acdd6bae91a037e6f2d0edeed4165d Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Sun, 11 Dec 2016 12:15:08 +0200 Subject: [PATCH] net/mlx5: Use exact encap header size for the FW input buffer The current code is allocating the max encap size supported by the firmware and not the size requested by the caller, fix that. Also, spare a warning when the size of the encapsulation headers is bigger from what is supported by the firmware. Signed-off-by: Or Gerlitz Reviewed-by: Hadar Hen Zion Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c index c4478ecd8056..b5253b59e8fe 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c @@ -473,10 +473,13 @@ int mlx5_encap_alloc(struct mlx5_core_dev *dev, int err; u32 *in; - if (size > MLX5_CAP_ESW(dev, max_encap_header_size)) + if (size > max_encap_size) { + mlx5_core_warn(dev, "encap size %zd too big, max supported is %d\n", + size, max_encap_size); return -EINVAL; + } - in = kzalloc(MLX5_ST_SZ_BYTES(alloc_encap_header_in) + max_encap_size, + in = kzalloc(MLX5_ST_SZ_BYTES(alloc_encap_header_in) + size, GFP_KERNEL); if (!in) return -ENOMEM; -- 2.20.1