From: Erez Shitrit <[email protected]>
We set the DF bit to 1, and re-calculate the csum for that buffer.
Fixes: 06d969a8c5b8 ("net/mlx5/hws: support NAT64 flow action")
Cc: [email protected]
Signed-off-by: Erez Shitrit <[email protected]>
Acked-by: Bing Zhao <[email protected]>
Acked-by: Matan Azrad <[email protected]>
---
drivers/net/mlx5/hws/mlx5dr_action.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/mlx5/hws/mlx5dr_action.c
b/drivers/net/mlx5/hws/mlx5dr_action.c
index 498c6aa109..3e48739eb5 100644
--- a/drivers/net/mlx5/hws/mlx5dr_action.c
+++ b/drivers/net/mlx5/hws/mlx5dr_action.c
@@ -507,8 +507,11 @@ mlx5dr_action_create_nat64_repalce_state(struct
mlx5dr_context *ctx,
memcpy(address_prefix, nat64_well_known_pref,
MLX5DR_ACTION_NAT64_HEADER_MINUS_ONE * sizeof(uint32_t));
} else {
- /* In order to fix HW csum issue, make the prefix ready */
- uint32_t ipv4_pref[] = {0x0, 0xffba0000, 0x0, 0x0, 0x0};
+ /* We make a buffer that contain the right HW csum and the DF
bit set.
+ * 0x00400000 - contain the DF bit in the right place.
+ * 0xff7a0000 - is the csum for that buffer, calculated via
external tool.
+ */
+ uint32_t ipv4_pref[] = {0x00400000, 0xff7a0000, 0x0, 0x0, 0x0};
header_size_in_dw = MLX5DR_ACTION_NAT64_IPV4_HEADER;
ip_ver = MLX5DR_ACTION_NAT64_IPV4_VER;
--
2.34.1
