Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 189 insertions, 0 deletions

diff --git a/drivers/crypto/hisilicon/sec2/sec.h b/drivers/crypto/hisilicon/sec2/sec.h
new file mode 100644
index 000000000..249735b7c
--- /dev/null
+++ b/drivers/crypto/hisilicon/sec2/sec.h
@@ -0,0 +1,189 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019 HiSilicon Limited. */
+
+#ifndef __HISI_SEC_V2_H
+#define __HISI_SEC_V2_H
+
+#include "../qm.h"
+#include "sec_crypto.h"
+
+/* Algorithm resource per hardware SEC queue */
+struct sec_alg_res {
+	u8 *pbuf;
+	dma_addr_t pbuf_dma;
+	u8 *c_ivin;
+	dma_addr_t c_ivin_dma;
+	u8 *out_mac;
+	dma_addr_t out_mac_dma;
+};
+
+/* Cipher request of SEC private */
+struct sec_cipher_req {
+	struct hisi_acc_hw_sgl *c_in;
+	dma_addr_t c_in_dma;
+	struct hisi_acc_hw_sgl *c_out;
+	dma_addr_t c_out_dma;
+	u8 *c_ivin;
+	dma_addr_t c_ivin_dma;
+	struct skcipher_request *sk_req;
+	u32 c_len;
+	bool encrypt;
+};
+
+struct sec_aead_req {
+	u8 *out_mac;
+	dma_addr_t out_mac_dma;
+	struct aead_request *aead_req;
+};
+
+/* SEC request of Crypto */
+struct sec_req {
+	struct sec_sqe sec_sqe;
+	struct sec_ctx *ctx;
+	struct sec_qp_ctx *qp_ctx;
+
+	struct sec_cipher_req c_req;
+	struct sec_aead_req aead_req;
+	struct list_head backlog_head;
+
+	int err_type;
+	int req_id;
+	u32 flag;
+
+	/* Status of the SEC request */
+	bool fake_busy;
+	bool use_pbuf;
+};
+
+/**
+ * struct sec_req_op - Operations for SEC request
+ * @buf_map: DMA map the SGL buffers of the request
+ * @buf_unmap: DMA unmap the SGL buffers of the request
+ * @bd_fill: Fill the SEC queue BD
+ * @bd_send: Send the SEC BD into the hardware queue
+ * @callback: Call back for the request
+ * @process: Main processing logic of Skcipher
+ */
+struct sec_req_op {
+	int (*buf_map)(struct sec_ctx *ctx, struct sec_req *req);
+	void (*buf_unmap)(struct sec_ctx *ctx, struct sec_req *req);
+	void (*do_transfer)(struct sec_ctx *ctx, struct sec_req *req);
+	int (*bd_fill)(struct sec_ctx *ctx, struct sec_req *req);
+	int (*bd_send)(struct sec_ctx *ctx, struct sec_req *req);
+	void (*callback)(struct sec_ctx *ctx, struct sec_req *req, int err);
+	int (*process)(struct sec_ctx *ctx, struct sec_req *req);
+};
+
+/* SEC auth context */
+struct sec_auth_ctx {
+	dma_addr_t a_key_dma;
+	u8 *a_key;
+	u8 a_key_len;
+	u8 mac_len;
+	u8 a_alg;
+	struct crypto_shash *hash_tfm;
+};
+
+/* SEC cipher context which cipher's relatives */
+struct sec_cipher_ctx {
+	u8 *c_key;
+	dma_addr_t c_key_dma;
+	sector_t iv_offset;
+	u32 c_gran_size;
+	u32 ivsize;
+	u8 c_mode;
+	u8 c_alg;
+	u8 c_key_len;
+};
+
+/* SEC queue context which defines queue's relatives */
+struct sec_qp_ctx {
+	struct hisi_qp *qp;
+	struct sec_req *req_list[QM_Q_DEPTH];
+	struct idr req_idr;
+	struct sec_alg_res res[QM_Q_DEPTH];
+	struct sec_ctx *ctx;
+	spinlock_t req_lock;
+	struct list_head backlog;
+	struct hisi_acc_sgl_pool *c_in_pool;
+	struct hisi_acc_sgl_pool *c_out_pool;
+	atomic_t pending_reqs;
+};
+
+enum sec_alg_type {
+	SEC_SKCIPHER,
+	SEC_AEAD
+};
+
+/* SEC Crypto TFM context which defines queue and cipher .etc relatives */
+struct sec_ctx {
+	struct sec_qp_ctx *qp_ctx;
+	struct sec_dev *sec;
+	const struct sec_req_op *req_op;
+	struct hisi_qp **qps;
+
+	/* Half queues for encipher, and half for decipher */
+	u32 hlf_q_num;
+
+	/* Threshold for fake busy, trigger to return -EBUSY to user */
+	u32 fake_req_limit;
+
+	/* Currrent cyclic index to select a queue for encipher */
+	atomic_t enc_qcyclic;
+
+	 /* Currrent cyclic index to select a queue for decipher */
+	atomic_t dec_qcyclic;
+
+	enum sec_alg_type alg_type;
+	bool pbuf_supported;
+	struct sec_cipher_ctx c_ctx;
+	struct sec_auth_ctx a_ctx;
+	struct device *dev;
+};
+
+enum sec_endian {
+	SEC_LE = 0,
+	SEC_32BE,
+	SEC_64BE
+};
+
+enum sec_debug_file_index {
+	SEC_CURRENT_QM,
+	SEC_CLEAR_ENABLE,
+	SEC_DEBUG_FILE_NUM,
+};
+
+struct sec_debug_file {
+	enum sec_debug_file_index index;
+	spinlock_t lock;
+	struct hisi_qm *qm;
+};
+
+struct sec_dfx {
+	atomic64_t send_cnt;
+	atomic64_t recv_cnt;
+	atomic64_t send_busy_cnt;
+	atomic64_t recv_busy_cnt;
+	atomic64_t err_bd_cnt;
+	atomic64_t invalid_req_cnt;
+	atomic64_t done_flag_cnt;
+};
+
+struct sec_debug {
+	struct sec_dfx dfx;
+	struct sec_debug_file files[SEC_DEBUG_FILE_NUM];
+};
+
+struct sec_dev {
+	struct hisi_qm qm;
+	struct sec_debug debug;
+	u32 ctx_q_num;
+	bool iommu_used;
+	unsigned long status;
+};
+
+void sec_destroy_qps(struct hisi_qp **qps, int qp_num);
+struct hisi_qp **sec_create_qps(void);
+int sec_register_to_crypto(void);
+void sec_unregister_from_crypto(void);
+#endif