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/*
* Copyright (C) 2016 Cavium, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*/
#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 {
u16 len0;
u16 len1;
u16 len2;
u16 len3;
} s;
} u;
u64 ptr0;
u64 ptr1;
u64 ptr2;
u64 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 {
u16 opcode;
u16 param1;
u16 param2;
u16 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 */
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