v4.19.13 snapshot.
diff --git a/include/linux/mlx5/accel.h b/include/linux/mlx5/accel.h
new file mode 100644
index 0000000..70e7e56
--- /dev/null
+++ b/include/linux/mlx5/accel.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2018 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef __MLX5_ACCEL_H__
+#define __MLX5_ACCEL_H__
+
+#include <linux/mlx5/driver.h>
+
+enum mlx5_accel_esp_aes_gcm_keymat_iv_algo {
+ MLX5_ACCEL_ESP_AES_GCM_IV_ALGO_SEQ,
+};
+
+enum mlx5_accel_esp_flags {
+ MLX5_ACCEL_ESP_FLAGS_TUNNEL = 0, /* Default */
+ MLX5_ACCEL_ESP_FLAGS_TRANSPORT = 1UL << 0,
+ MLX5_ACCEL_ESP_FLAGS_ESN_TRIGGERED = 1UL << 1,
+ MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP = 1UL << 2,
+};
+
+enum mlx5_accel_esp_action {
+ MLX5_ACCEL_ESP_ACTION_DECRYPT,
+ MLX5_ACCEL_ESP_ACTION_ENCRYPT,
+};
+
+enum mlx5_accel_esp_keymats {
+ MLX5_ACCEL_ESP_KEYMAT_AES_NONE,
+ MLX5_ACCEL_ESP_KEYMAT_AES_GCM,
+};
+
+enum mlx5_accel_esp_replay {
+ MLX5_ACCEL_ESP_REPLAY_NONE,
+ MLX5_ACCEL_ESP_REPLAY_BMP,
+};
+
+struct aes_gcm_keymat {
+ u64 seq_iv;
+ enum mlx5_accel_esp_aes_gcm_keymat_iv_algo iv_algo;
+
+ u32 salt;
+ u32 icv_len;
+
+ u32 key_len;
+ u32 aes_key[256 / 32];
+};
+
+struct mlx5_accel_esp_xfrm_attrs {
+ enum mlx5_accel_esp_action action;
+ u32 esn;
+ u32 spi;
+ u32 seq;
+ u32 tfc_pad;
+ u32 flags;
+ u32 sa_handle;
+ enum mlx5_accel_esp_replay replay_type;
+ union {
+ struct {
+ u32 size;
+
+ } bmp;
+ } replay;
+ enum mlx5_accel_esp_keymats keymat_type;
+ union {
+ struct aes_gcm_keymat aes_gcm;
+ } keymat;
+};
+
+struct mlx5_accel_esp_xfrm {
+ struct mlx5_core_dev *mdev;
+ struct mlx5_accel_esp_xfrm_attrs attrs;
+};
+
+enum {
+ MLX5_ACCEL_XFRM_FLAG_REQUIRE_METADATA = 1UL << 0,
+};
+
+enum mlx5_accel_ipsec_cap {
+ MLX5_ACCEL_IPSEC_CAP_DEVICE = 1 << 0,
+ MLX5_ACCEL_IPSEC_CAP_REQUIRED_METADATA = 1 << 1,
+ MLX5_ACCEL_IPSEC_CAP_ESP = 1 << 2,
+ MLX5_ACCEL_IPSEC_CAP_IPV6 = 1 << 3,
+ MLX5_ACCEL_IPSEC_CAP_LSO = 1 << 4,
+ MLX5_ACCEL_IPSEC_CAP_RX_NO_TRAILER = 1 << 5,
+ MLX5_ACCEL_IPSEC_CAP_ESN = 1 << 6,
+ MLX5_ACCEL_IPSEC_CAP_TX_IV_IS_ESN = 1 << 7,
+};
+
+#ifdef CONFIG_MLX5_ACCEL
+
+u32 mlx5_accel_ipsec_device_caps(struct mlx5_core_dev *mdev);
+
+struct mlx5_accel_esp_xfrm *
+mlx5_accel_esp_create_xfrm(struct mlx5_core_dev *mdev,
+ const struct mlx5_accel_esp_xfrm_attrs *attrs,
+ u32 flags);
+void mlx5_accel_esp_destroy_xfrm(struct mlx5_accel_esp_xfrm *xfrm);
+int mlx5_accel_esp_modify_xfrm(struct mlx5_accel_esp_xfrm *xfrm,
+ const struct mlx5_accel_esp_xfrm_attrs *attrs);
+
+#else
+
+static inline u32 mlx5_accel_ipsec_device_caps(struct mlx5_core_dev *mdev) { return 0; }
+
+static inline struct mlx5_accel_esp_xfrm *
+mlx5_accel_esp_create_xfrm(struct mlx5_core_dev *mdev,
+ const struct mlx5_accel_esp_xfrm_attrs *attrs,
+ u32 flags) { return ERR_PTR(-EOPNOTSUPP); }
+static inline void
+mlx5_accel_esp_destroy_xfrm(struct mlx5_accel_esp_xfrm *xfrm) {}
+static inline int
+mlx5_accel_esp_modify_xfrm(struct mlx5_accel_esp_xfrm *xfrm,
+ const struct mlx5_accel_esp_xfrm_attrs *attrs) { return -EOPNOTSUPP; }
+
+#endif
+#endif