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Date: Tue, 14 Nov 2023 12:42:44 +0000
From: Aurelien Aptel <aaptel@...dia.com>
To: linux-nvme@...ts.infradead.org,
	netdev@...r.kernel.org,
	sagi@...mberg.me,
	hch@....de,
	kbusch@...nel.org,
	axboe@...com,
	chaitanyak@...dia.com,
	davem@...emloft.net,
	kuba@...nel.org
Cc: Or Gerlitz <ogerlitz@...dia.com>,
	aaptel@...dia.com,
	aurelien.aptel@...il.com,
	smalin@...dia.com,
	malin1024@...il.com,
	yorayz@...dia.com,
	borisp@...dia.com,
	galshalom@...dia.com,
	mgurtovoy@...dia.com
Subject: [PATCH v19 10/20] net/mlx5e: Rename from tls to transport static params

From: Or Gerlitz <ogerlitz@...dia.com>

The static params structure is used in TLS but also in other
transports we're offloading like nvmeotcp:

- Rename the relevant structures/fields
- Create common file for appropriate transports
- Apply changes in the TLS code

No functional change here.

Signed-off-by: Or Gerlitz <ogerlitz@...dia.com>
Signed-off-by: Ben Ben-Ishay <benishay@...dia.com>
Signed-off-by: Aurelien Aptel <aaptel@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
---
 .../mlx5/core/en_accel/common_utils.h         | 32 +++++++++++++++++
 .../mellanox/mlx5/core/en_accel/ktls.c        |  2 +-
 .../mellanox/mlx5/core/en_accel/ktls_rx.c     |  6 ++--
 .../mellanox/mlx5/core/en_accel/ktls_tx.c     |  8 ++---
 .../mellanox/mlx5/core/en_accel/ktls_txrx.c   | 36 ++++++++-----------
 .../mellanox/mlx5/core/en_accel/ktls_utils.h  | 17 ++-------
 include/linux/mlx5/device.h                   |  8 ++---
 include/linux/mlx5/mlx5_ifc.h                 |  8 +++--
 8 files changed, 67 insertions(+), 50 deletions(-)
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/en_accel/common_utils.h

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/common_utils.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/common_utils.h
new file mode 100644
index 000000000000..efdf48125848
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/common_utils.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. */
+#ifndef __MLX5E_COMMON_UTILS_H__
+#define __MLX5E_COMMON_UTILS_H__
+
+#include "en.h"
+
+struct mlx5e_set_transport_static_params_wqe {
+	struct mlx5_wqe_ctrl_seg ctrl;
+	struct mlx5_wqe_umr_ctrl_seg uctrl;
+	struct mlx5_mkey_seg mkc;
+	struct mlx5_wqe_transport_static_params_seg params;
+};
+
+/* macros for transport_static_params handling */
+#define MLX5E_TRANSPORT_SET_STATIC_PARAMS_WQEBBS \
+	(DIV_ROUND_UP(sizeof(struct mlx5e_set_transport_static_params_wqe), MLX5_SEND_WQE_BB))
+
+#define MLX5E_TRANSPORT_FETCH_SET_STATIC_PARAMS_WQE(sq, pi) \
+	((struct mlx5e_set_transport_static_params_wqe *)\
+	 mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_set_transport_static_params_wqe)))
+
+#define MLX5E_TRANSPORT_STATIC_PARAMS_WQE_SZ \
+	(sizeof(struct mlx5e_set_transport_static_params_wqe))
+
+#define MLX5E_TRANSPORT_STATIC_PARAMS_DS_CNT \
+	(DIV_ROUND_UP(MLX5E_TRANSPORT_STATIC_PARAMS_WQE_SZ, MLX5_SEND_WQE_DS))
+
+#define MLX5E_TRANSPORT_STATIC_PARAMS_OCTWORD_SIZE \
+	(MLX5_ST_SZ_BYTES(transport_static_params) / MLX5_SEND_WQE_DS)
+
+#endif /* __MLX5E_COMMON_UTILS_H__ */
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..bab9b0c59491 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
@@ -100,7 +100,7 @@ bool mlx5e_is_ktls_rx(struct mlx5_core_dev *mdev)
 		return false;
 
 	/* Check the possibility to post the required ICOSQ WQEs. */
-	if (WARN_ON_ONCE(max_sq_wqebbs < MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS))
+	if (WARN_ON_ONCE(max_sq_wqebbs < MLX5E_TRANSPORT_SET_STATIC_PARAMS_WQEBBS))
 		return false;
 	if (WARN_ON_ONCE(max_sq_wqebbs < MLX5E_TLS_SET_PROGRESS_PARAMS_WQEBBS))
 		return false;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_rx.c
index 9b597cb24598..20994773056c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_rx.c
@@ -136,16 +136,16 @@ static struct mlx5_wqe_ctrl_seg *
 post_static_params(struct mlx5e_icosq *sq,
 		   struct mlx5e_ktls_offload_context_rx *priv_rx)
 {
-	struct mlx5e_set_tls_static_params_wqe *wqe;
+	struct mlx5e_set_transport_static_params_wqe *wqe;
 	struct mlx5e_icosq_wqe_info wi;
 	u16 pi, num_wqebbs;
 
-	num_wqebbs = MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS;
+	num_wqebbs = MLX5E_TRANSPORT_SET_STATIC_PARAMS_WQEBBS;
 	if (unlikely(!mlx5e_icosq_can_post_wqe(sq, num_wqebbs)))
 		return ERR_PTR(-ENOSPC);
 
 	pi = mlx5e_icosq_get_next_pi(sq, num_wqebbs);
-	wqe = MLX5E_TLS_FETCH_SET_STATIC_PARAMS_WQE(sq, pi);
+	wqe = MLX5E_TRANSPORT_FETCH_SET_STATIC_PARAMS_WQE(sq, pi);
 	mlx5e_ktls_build_static_params(wqe, sq->pc, sq->sqn, &priv_rx->crypto_info,
 				       mlx5e_tir_get_tirn(&priv_rx->tir),
 				       mlx5_crypto_dek_get_id(priv_rx->dek),
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
index d61be26a4df1..0691995470e2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
@@ -33,7 +33,7 @@ u16 mlx5e_ktls_get_stop_room(struct mlx5_core_dev *mdev, struct mlx5e_params *pa
 
 	num_dumps = mlx5e_ktls_dumps_num_wqes(params, MAX_SKB_FRAGS, TLS_MAX_PAYLOAD_SIZE);
 
-	stop_room += mlx5e_stop_room_for_wqe(mdev, MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS);
+	stop_room += mlx5e_stop_room_for_wqe(mdev, MLX5E_TRANSPORT_SET_STATIC_PARAMS_WQEBBS);
 	stop_room += mlx5e_stop_room_for_wqe(mdev, MLX5E_TLS_SET_PROGRESS_PARAMS_WQEBBS);
 	stop_room += num_dumps * mlx5e_stop_room_for_wqe(mdev, MLX5E_KTLS_DUMP_WQEBBS);
 	stop_room += 1; /* fence nop */
@@ -550,12 +550,12 @@ post_static_params(struct mlx5e_txqsq *sq,
 		   struct mlx5e_ktls_offload_context_tx *priv_tx,
 		   bool fence)
 {
-	struct mlx5e_set_tls_static_params_wqe *wqe;
+	struct mlx5e_set_transport_static_params_wqe *wqe;
 	u16 pi, num_wqebbs;
 
-	num_wqebbs = MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS;
+	num_wqebbs = MLX5E_TRANSPORT_SET_STATIC_PARAMS_WQEBBS;
 	pi = mlx5e_txqsq_get_next_pi(sq, num_wqebbs);
-	wqe = MLX5E_TLS_FETCH_SET_STATIC_PARAMS_WQE(sq, pi);
+	wqe = MLX5E_TRANSPORT_FETCH_SET_STATIC_PARAMS_WQE(sq, pi);
 	mlx5e_ktls_build_static_params(wqe, sq->pc, sq->sqn, &priv_tx->crypto_info,
 				       priv_tx->tisn,
 				       mlx5_crypto_dek_get_id(priv_tx->dek),
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.c
index 570a912dd6fa..8abea6fe6cd9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.c
@@ -8,10 +8,6 @@ enum {
 	MLX5E_STATIC_PARAMS_CONTEXT_TLS_1_2 = 0x2,
 };
 
-enum {
-	MLX5E_ENCRYPTION_STANDARD_TLS = 0x1,
-};
-
 #define EXTRACT_INFO_FIELDS do { \
 	salt    = info->salt;    \
 	rec_seq = info->rec_seq; \
@@ -20,7 +16,7 @@ enum {
 } while (0)
 
 static void
-fill_static_params(struct mlx5_wqe_tls_static_params_seg *params,
+fill_static_params(struct mlx5_wqe_transport_static_params_seg *params,
 		   union mlx5e_crypto_info *crypto_info,
 		   u32 key_id, u32 resync_tcp_sn)
 {
@@ -53,25 +49,25 @@ fill_static_params(struct mlx5_wqe_tls_static_params_seg *params,
 		return;
 	}
 
-	gcm_iv      = MLX5_ADDR_OF(tls_static_params, ctx, gcm_iv);
-	initial_rn  = MLX5_ADDR_OF(tls_static_params, ctx, initial_record_number);
+	gcm_iv      = MLX5_ADDR_OF(transport_static_params, ctx, gcm_iv);
+	initial_rn  = MLX5_ADDR_OF(transport_static_params, ctx, initial_record_number);
 
 	memcpy(gcm_iv,      salt,    salt_sz);
 	memcpy(initial_rn,  rec_seq, rec_seq_sz);
 
 	tls_version = MLX5E_STATIC_PARAMS_CONTEXT_TLS_1_2;
 
-	MLX5_SET(tls_static_params, ctx, tls_version, tls_version);
-	MLX5_SET(tls_static_params, ctx, const_1, 1);
-	MLX5_SET(tls_static_params, ctx, const_2, 2);
-	MLX5_SET(tls_static_params, ctx, encryption_standard,
-		 MLX5E_ENCRYPTION_STANDARD_TLS);
-	MLX5_SET(tls_static_params, ctx, resync_tcp_sn, resync_tcp_sn);
-	MLX5_SET(tls_static_params, ctx, dek_index, key_id);
+	MLX5_SET(transport_static_params, ctx, tls_version, tls_version);
+	MLX5_SET(transport_static_params, ctx, const_1, 1);
+	MLX5_SET(transport_static_params, ctx, const_2, 2);
+	MLX5_SET(transport_static_params, ctx, acc_type,
+		 MLX5_TRANSPORT_STATIC_PARAMS_ACC_TYPE_TLS);
+	MLX5_SET(transport_static_params, ctx, resync_tcp_sn, resync_tcp_sn);
+	MLX5_SET(transport_static_params, ctx, dek_index, key_id);
 }
 
 void
-mlx5e_ktls_build_static_params(struct mlx5e_set_tls_static_params_wqe *wqe,
+mlx5e_ktls_build_static_params(struct mlx5e_set_transport_static_params_wqe *wqe,
 			       u16 pc, u32 sqn,
 			       union mlx5e_crypto_info *crypto_info,
 			       u32 tis_tir_num, u32 key_id, u32 resync_tcp_sn,
@@ -80,19 +76,17 @@ mlx5e_ktls_build_static_params(struct mlx5e_set_tls_static_params_wqe *wqe,
 	struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl;
 	struct mlx5_wqe_ctrl_seg     *cseg  = &wqe->ctrl;
 	u8 opmod = direction == TLS_OFFLOAD_CTX_DIR_TX ?
-		MLX5_OPC_MOD_TLS_TIS_STATIC_PARAMS :
-		MLX5_OPC_MOD_TLS_TIR_STATIC_PARAMS;
-
-#define STATIC_PARAMS_DS_CNT DIV_ROUND_UP(sizeof(*wqe), MLX5_SEND_WQE_DS)
+		MLX5_OPC_MOD_TRANSPORT_TIS_STATIC_PARAMS :
+		MLX5_OPC_MOD_TRANSPORT_TIR_STATIC_PARAMS;
 
 	cseg->opmod_idx_opcode = cpu_to_be32((pc << 8) | MLX5_OPCODE_UMR | (opmod << 24));
 	cseg->qpn_ds           = cpu_to_be32((sqn << MLX5_WQE_CTRL_QPN_SHIFT) |
-					     STATIC_PARAMS_DS_CNT);
+					     MLX5E_TRANSPORT_STATIC_PARAMS_DS_CNT);
 	cseg->fm_ce_se         = fence ? MLX5_FENCE_MODE_INITIATOR_SMALL : 0;
 	cseg->tis_tir_num      = cpu_to_be32(tis_tir_num << 8);
 
 	ucseg->flags = MLX5_UMR_INLINE;
-	ucseg->bsf_octowords = cpu_to_be16(MLX5_ST_SZ_BYTES(tls_static_params) / 16);
+	ucseg->bsf_octowords = cpu_to_be16(MLX5E_TRANSPORT_STATIC_PARAMS_OCTWORD_SIZE);
 
 	fill_static_params(&wqe->params, crypto_info, key_id, resync_tcp_sn);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_utils.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_utils.h
index 3d79cd379890..5e2d186778aa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_utils.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_utils.h
@@ -6,6 +6,7 @@
 
 #include <net/tls.h>
 #include "en.h"
+#include "en_accel/common_utils.h"
 
 enum {
 	MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_NO_OFFLOAD     = 0,
@@ -33,13 +34,6 @@ union mlx5e_crypto_info {
 	struct tls12_crypto_info_aes_gcm_256 crypto_info_256;
 };
 
-struct mlx5e_set_tls_static_params_wqe {
-	struct mlx5_wqe_ctrl_seg ctrl;
-	struct mlx5_wqe_umr_ctrl_seg uctrl;
-	struct mlx5_mkey_seg mkc;
-	struct mlx5_wqe_tls_static_params_seg params;
-};
-
 struct mlx5e_set_tls_progress_params_wqe {
 	struct mlx5_wqe_ctrl_seg ctrl;
 	struct mlx5_wqe_tls_progress_params_seg params;
@@ -50,19 +44,12 @@ struct mlx5e_get_tls_progress_params_wqe {
 	struct mlx5_seg_get_psv  psv;
 };
 
-#define MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS \
-	(DIV_ROUND_UP(sizeof(struct mlx5e_set_tls_static_params_wqe), MLX5_SEND_WQE_BB))
-
 #define MLX5E_TLS_SET_PROGRESS_PARAMS_WQEBBS \
 	(DIV_ROUND_UP(sizeof(struct mlx5e_set_tls_progress_params_wqe), MLX5_SEND_WQE_BB))
 
 #define MLX5E_KTLS_GET_PROGRESS_WQEBBS \
 	(DIV_ROUND_UP(sizeof(struct mlx5e_get_tls_progress_params_wqe), MLX5_SEND_WQE_BB))
 
-#define MLX5E_TLS_FETCH_SET_STATIC_PARAMS_WQE(sq, pi) \
-	((struct mlx5e_set_tls_static_params_wqe *)\
-	 mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_set_tls_static_params_wqe)))
-
 #define MLX5E_TLS_FETCH_SET_PROGRESS_PARAMS_WQE(sq, pi) \
 	((struct mlx5e_set_tls_progress_params_wqe *)\
 	 mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_set_tls_progress_params_wqe)))
@@ -76,7 +63,7 @@ struct mlx5e_get_tls_progress_params_wqe {
 	 mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_dump_wqe)))
 
 void
-mlx5e_ktls_build_static_params(struct mlx5e_set_tls_static_params_wqe *wqe,
+mlx5e_ktls_build_static_params(struct mlx5e_set_transport_static_params_wqe *wqe,
 			       u16 pc, u32 sqn,
 			       union mlx5e_crypto_info *crypto_info,
 			       u32 tis_tir_num, u32 key_id, u32 resync_tcp_sn,
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 820bca965fb6..f1dde3c6a3f3 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -454,8 +454,8 @@ enum {
 };
 
 enum {
-	MLX5_OPC_MOD_TLS_TIS_STATIC_PARAMS = 0x1,
-	MLX5_OPC_MOD_TLS_TIR_STATIC_PARAMS = 0x2,
+	MLX5_OPC_MOD_TRANSPORT_TIS_STATIC_PARAMS = 0x1,
+	MLX5_OPC_MOD_TRANSPORT_TIR_STATIC_PARAMS = 0x2,
 };
 
 enum {
@@ -463,8 +463,8 @@ enum {
 	MLX5_OPC_MOD_TLS_TIR_PROGRESS_PARAMS = 0x2,
 };
 
-struct mlx5_wqe_tls_static_params_seg {
-	u8     ctx[MLX5_ST_SZ_BYTES(tls_static_params)];
+struct mlx5_wqe_transport_static_params_seg {
+	u8     ctx[MLX5_ST_SZ_BYTES(transport_static_params)];
 };
 
 struct mlx5_wqe_tls_progress_params_seg {
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 6f3631425f38..931b97d9153d 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -12355,12 +12355,16 @@ enum {
 	MLX5_GENERAL_OBJECT_TYPE_ENCRYPTION_KEY_PURPOSE_MACSEC = 0x4,
 };
 
-struct mlx5_ifc_tls_static_params_bits {
+enum {
+	MLX5_TRANSPORT_STATIC_PARAMS_ACC_TYPE_TLS               = 0x1,
+};
+
+struct mlx5_ifc_transport_static_params_bits {
 	u8         const_2[0x2];
 	u8         tls_version[0x4];
 	u8         const_1[0x2];
 	u8         reserved_at_8[0x14];
-	u8         encryption_standard[0x4];
+	u8         acc_type[0x4];
 
 	u8         reserved_at_20[0x20];
 
-- 
2.34.1


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