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/*
* Huawei HiNIC PCI Express Linux driver
* Copyright(c) 2017 Huawei Technologies Co., Ltd
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
*/
#ifndef HINIC_HW_API_CMD_H
#define HINIC_HW_API_CMD_H
#include <linux/types.h>
#include "hinic_hw_if.h"
#define HINIC_API_CMD_CHAIN_REQ_RESTART_SHIFT 1
#define HINIC_API_CMD_CHAIN_REQ_RESTART_MASK 0x1
#define HINIC_API_CMD_CHAIN_REQ_SET(val, member) \
(((u32)(val) & HINIC_API_CMD_CHAIN_REQ_##member##_MASK) << \
HINIC_API_CMD_CHAIN_REQ_##member##_SHIFT)
#define HINIC_API_CMD_CHAIN_REQ_GET(val, member) \
(((val) >> HINIC_API_CMD_CHAIN_REQ_##member##_SHIFT) & \
HINIC_API_CMD_CHAIN_REQ_##member##_MASK)
#define HINIC_API_CMD_CHAIN_REQ_CLEAR(val, member) \
((val) & (~(HINIC_API_CMD_CHAIN_REQ_##member##_MASK \
<< HINIC_API_CMD_CHAIN_REQ_##member##_SHIFT)))
#define HINIC_API_CMD_CHAIN_CTRL_RESTART_WB_STAT_SHIFT 1
#define HINIC_API_CMD_CHAIN_CTRL_XOR_ERR_SHIFT 2
#define HINIC_API_CMD_CHAIN_CTRL_AEQE_EN_SHIFT 4
#define HINIC_API_CMD_CHAIN_CTRL_AEQ_ID_SHIFT 8
#define HINIC_API_CMD_CHAIN_CTRL_XOR_CHK_EN_SHIFT 28
#define HINIC_API_CMD_CHAIN_CTRL_CELL_SIZE_SHIFT 30
#define HINIC_API_CMD_CHAIN_CTRL_RESTART_WB_STAT_MASK 0x1
#define HINIC_API_CMD_CHAIN_CTRL_XOR_ERR_MASK 0x1
#define HINIC_API_CMD_CHAIN_CTRL_AEQE_EN_MASK 0x1
#define HINIC_API_CMD_CHAIN_CTRL_AEQ_ID_MASK 0x3
#define HINIC_API_CMD_CHAIN_CTRL_XOR_CHK_EN_MASK 0x3
#define HINIC_API_CMD_CHAIN_CTRL_CELL_SIZE_MASK 0x3
#define HINIC_API_CMD_CHAIN_CTRL_SET(val, member) \
(((u32)(val) & HINIC_API_CMD_CHAIN_CTRL_##member##_MASK) << \
HINIC_API_CMD_CHAIN_CTRL_##member##_SHIFT)
#define HINIC_API_CMD_CHAIN_CTRL_CLEAR(val, member) \
((val) & (~(HINIC_API_CMD_CHAIN_CTRL_##member##_MASK \
<< HINIC_API_CMD_CHAIN_CTRL_##member##_SHIFT)))
enum hinic_api_cmd_chain_type {
HINIC_API_CMD_WRITE_TO_MGMT_CPU = 2,
HINIC_API_CMD_MAX,
};
struct hinic_api_cmd_chain_attr {
struct hinic_hwif *hwif;
enum hinic_api_cmd_chain_type chain_type;
u32 num_cells;
u16 cell_size;
};
struct hinic_api_cmd_status {
u64 header;
u32 status;
u32 rsvd0;
u32 rsvd1;
u32 rsvd2;
u64 rsvd3;
};
/* HW struct */
struct hinic_api_cmd_cell {
u64 ctrl;
/* address is 64 bit in HW struct */
u64 next_cell_paddr;
u64 desc;
/* HW struct */
union {
struct {
u64 hw_cmd_paddr;
} write;
struct {
u64 hw_wb_resp_paddr;
u64 hw_cmd_paddr;
} read;
};
};
struct hinic_api_cmd_cell_ctxt {
dma_addr_t cell_paddr;
struct hinic_api_cmd_cell *cell_vaddr;
dma_addr_t api_cmd_paddr;
u8 *api_cmd_vaddr;
};
struct hinic_api_cmd_chain {
struct hinic_hwif *hwif;
enum hinic_api_cmd_chain_type chain_type;
u32 num_cells;
u16 cell_size;
/* HW members in 24 bit format */
u32 prod_idx;
u32 cons_idx;
struct hinic_api_cmd_cell_ctxt *cell_ctxt;
dma_addr_t wb_status_paddr;
struct hinic_api_cmd_status *wb_status;
dma_addr_t head_cell_paddr;
struct hinic_api_cmd_cell *head_node;
struct hinic_api_cmd_cell *curr_node;
};
int hinic_api_cmd_init(struct hinic_api_cmd_chain **chain,
struct hinic_hwif *hwif);
void hinic_api_cmd_free(struct hinic_api_cmd_chain **chain);
#endif
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