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[net-next,V4,13/15] net/mlx5e: Block TLS device offload on combined SD netdev

Message ID 20240302072246.67920-14-saeed@kernel.org (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series [net-next,V4,01/15] net/mlx5: Add MPIR bit in mcam_access_reg | expand

Checks

Context Check Description
netdev/series_format success Pull request is its own cover letter
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 940 this patch: 940
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 4 of 4 maintainers
netdev/build_clang success Errors and warnings before: 956 this patch: 956
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 956 this patch: 956
netdev/checkpatch warning WARNING: line length of 82 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-03-03--03-00 (tests: 794)

Commit Message

Saeed Mahameed March 2, 2024, 7:22 a.m. UTC 
From: Tariq Toukan <tariqt@nvidia.com>

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>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c | 2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

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 984fa04bd331..e3e57c849436 100644
--- 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 f11075e67658..adc6d8ea0960 100644
--- 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);