From dda3bbbb26c823cd54d5bf211df7db12147c9392 Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Tue, 29 Nov 2022 01:30:05 -0800 Subject: Revert "net/mlx5e: MACsec, remove replay window size limitation in offload path" This reverts commit c0071be0e16c461680d87b763ba1ee5e46548fde. The cited commit removed the validity checks which initialized the window_sz and never removed the use of the now uninitialized variable, so now we are left with wrong value in the window size and the following clang warning: [-Wuninitialized] drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c:232:45: warning: variable 'window_sz' is uninitialized when used here MLX5_SET(macsec_aso, aso_ctx, window_size, window_sz); Revet at this time to address the clang issue due to lack of time to test the proper solution. Fixes: c0071be0e16c ("net/mlx5e: MACsec, remove replay window size limitation in offload path") Signed-off-by: Saeed Mahameed Reported-by: Jacob Keller Link: https://lore.kernel.org/r/20221129093006.378840-1-saeed@kernel.org Signed-off-by: Jakub Kicinski --- .../net/ethernet/mellanox/mlx5/core/en_accel/macsec.c | 16 ++++++++++++++++ include/linux/mlx5/mlx5_ifc.h | 7 +++++++ 2 files changed, 23 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c index 0d6dc394a12a..f900709639f6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c @@ -229,6 +229,22 @@ static int macsec_set_replay_protection(struct mlx5_macsec_obj_attrs *attrs, voi if (!attrs->replay_protect) return 0; + switch (attrs->replay_window) { + case 256: + window_sz = MLX5_MACSEC_ASO_REPLAY_WIN_256BIT; + break; + case 128: + window_sz = MLX5_MACSEC_ASO_REPLAY_WIN_128BIT; + break; + case 64: + window_sz = MLX5_MACSEC_ASO_REPLAY_WIN_64BIT; + break; + case 32: + window_sz = MLX5_MACSEC_ASO_REPLAY_WIN_32BIT; + break; + default: + return -EINVAL; + } MLX5_SET(macsec_aso, aso_ctx, window_size, window_sz); MLX5_SET(macsec_aso, aso_ctx, mode, MLX5_MACSEC_ASO_REPLAY_PROTECTION); diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 981fc7dfa408..5a4e914e2a6f 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -11611,6 +11611,13 @@ enum { MLX5_MACSEC_ASO_REPLAY_PROTECTION = 0x1, }; +enum { + MLX5_MACSEC_ASO_REPLAY_WIN_32BIT = 0x0, + MLX5_MACSEC_ASO_REPLAY_WIN_64BIT = 0x1, + MLX5_MACSEC_ASO_REPLAY_WIN_128BIT = 0x2, + MLX5_MACSEC_ASO_REPLAY_WIN_256BIT = 0x3, +}; + #define MLX5_MACSEC_ASO_INC_SN 0x2 #define MLX5_MACSEC_ASO_REG_C_4_5 0x2 -- cgit v1.2.3