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-rw-r--r--drivers/crypto/cavium/cpt/request_manager.h146
1 files changed, 146 insertions, 0 deletions
diff --git a/drivers/crypto/cavium/cpt/request_manager.h b/drivers/crypto/cavium/cpt/request_manager.h
new file mode 100644
index 000000000..8d40e4ba3
--- /dev/null
+++ b/drivers/crypto/cavium/cpt/request_manager.h
@@ -0,0 +1,146 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2016 Cavium, Inc.
+ */
+
+#ifndef __REQUEST_MANAGER_H
+#define __REQUEST_MANAGER_H
+
+#include "cpt_common.h"
+
+#define TIME_IN_RESET_COUNT 5
+#define COMPLETION_CODE_SIZE 8
+#define COMPLETION_CODE_INIT 0
+#define PENDING_THOLD 100
+#define MAX_SG_IN_CNT 12
+#define MAX_SG_OUT_CNT 13
+#define SG_LIST_HDR_SIZE 8
+#define MAX_BUF_CNT 16
+
+union ctrl_info {
+ u32 flags;
+ struct {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u32 reserved0:26;
+ u32 grp:3; /* Group bits */
+ u32 dma_mode:2; /* DMA mode */
+ u32 se_req:1;/* To SE core */
+#else
+ u32 se_req:1; /* To SE core */
+ u32 dma_mode:2; /* DMA mode */
+ u32 grp:3; /* Group bits */
+ u32 reserved0:26;
+#endif
+ } s;
+};
+
+union opcode_info {
+ u16 flags;
+ struct {
+ u8 major;
+ u8 minor;
+ } s;
+};
+
+struct cptvf_request {
+ union opcode_info opcode;
+ u16 param1;
+ u16 param2;
+ u16 dlen;
+};
+
+struct buf_ptr {
+ u8 *vptr;
+ dma_addr_t dma_addr;
+ u16 size;
+};
+
+struct cpt_request_info {
+ u8 incnt; /* Number of input buffers */
+ u8 outcnt; /* Number of output buffers */
+ u16 rlen; /* Output length */
+ union ctrl_info ctrl; /* User control information */
+ struct cptvf_request req; /* Request Information (Core specific) */
+
+ bool may_sleep;
+
+ struct buf_ptr in[MAX_BUF_CNT];
+ struct buf_ptr out[MAX_BUF_CNT];
+
+ void (*callback)(int, void *); /* Kernel ASYNC request callabck */
+ void *callback_arg; /* Kernel ASYNC request callabck arg */
+};
+
+struct sglist_component {
+ union {
+ u64 len;
+ struct {
+ __be16 len0;
+ __be16 len1;
+ __be16 len2;
+ __be16 len3;
+ } s;
+ } u;
+ __be64 ptr0;
+ __be64 ptr1;
+ __be64 ptr2;
+ __be64 ptr3;
+};
+
+struct cpt_info_buffer {
+ struct cpt_vf *cptvf;
+ unsigned long time_in;
+ u8 extra_time;
+
+ struct cpt_request_info *req;
+ dma_addr_t dptr_baddr;
+ u32 dlen;
+ dma_addr_t rptr_baddr;
+ dma_addr_t comp_baddr;
+ u8 *in_buffer;
+ u8 *out_buffer;
+ u8 *gather_components;
+ u8 *scatter_components;
+
+ struct pending_entry *pentry;
+ volatile u64 *completion_addr;
+ volatile u64 *alternate_caddr;
+};
+
+/*
+ * CPT_INST_S software command definitions
+ * Words EI (0-3)
+ */
+union vq_cmd_word0 {
+ u64 u64;
+ struct {
+ __be16 opcode;
+ __be16 param1;
+ __be16 param2;
+ __be16 dlen;
+ } s;
+};
+
+union vq_cmd_word3 {
+ u64 u64;
+ struct {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u64 grp:3;
+ u64 cptr:61;
+#else
+ u64 cptr:61;
+ u64 grp:3;
+#endif
+ } s;
+};
+
+struct cpt_vq_command {
+ union vq_cmd_word0 cmd;
+ u64 dptr;
+ u64 rptr;
+ union vq_cmd_word3 cptr;
+};
+
+void vq_post_process(struct cpt_vf *cptvf, u32 qno);
+int process_request(struct cpt_vf *cptvf, struct cpt_request_info *req);
+#endif /* __REQUEST_MANAGER_H */