diff options
Diffstat (limited to 'drivers/crypto/cavium/cpt/request_manager.h')
-rw-r--r-- | drivers/crypto/cavium/cpt/request_manager.h | 146 |
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 0000000000..8d40e4ba3a --- /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 */ |