net/mlx5e: Block TLS device offload on combined SD netdev

1) Each TX TLS device offloaded context has its own TIS object.  Extra work
is needed to get it working in a SD environment, where a stream can move
between different SQs (belonging to different mdevs).

2) Each RX TLS device offloaded context needs a DEK object from the DEK
pool.

Extra work is needed to get it working in a SD environment, as the DEK
pool currently falsely depends on TX cap, and is on the primary device
only.

Disallow this combination for now.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
index 984fa04bd331b8b22b8484f75538326c8ce5849f..e3e57c849436abd6480b5556fa6cd02c247c13c5 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
@@ -96,7 +96,7 @@ bool mlx5e_is_ktls_rx(struct mlx5_core_dev *mdev)
 {
        u8 max_sq_wqebbs = mlx5e_get_max_sq_wqebbs(mdev);
 
-       if (is_kdump_kernel() || !MLX5_CAP_GEN(mdev, tls_rx))
+       if (is_kdump_kernel() || !MLX5_CAP_GEN(mdev, tls_rx) || mlx5_get_sd(mdev))
                return false;
 
        /* Check the possibility to post the required ICOSQ WQEs. */

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h
index f11075e67658621b9fc52da27c4239ae7d7cd716..adc6d8ea096027f836e6f23035d850ab06b6b681 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h
@@ -11,6 +11,7 @@
 
 #ifdef CONFIG_MLX5_EN_TLS
 #include "lib/crypto.h"
+#include "lib/mlx5.h"
 
 struct mlx5_crypto_dek *mlx5_ktls_create_key(struct mlx5_crypto_dek_pool *dek_pool,
                                             struct tls_crypto_info *crypto_info);
@@ -61,7 +62,8 @@ void mlx5e_ktls_rx_resync_destroy_resp_list(struct mlx5e_ktls_resync_resp *resp_
 
 static inline bool mlx5e_is_ktls_tx(struct mlx5_core_dev *mdev)
 {
-       return !is_kdump_kernel() && MLX5_CAP_GEN(mdev, tls_tx);
+       return !is_kdump_kernel() && MLX5_CAP_GEN(mdev, tls_tx) &&
+               !mlx5_get_sd(mdev);
 }
 
 bool mlx5e_is_ktls_rx(struct mlx5_core_dev *mdev);