98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/*
|
|
* 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_IO_H
|
|
#define HINIC_HW_IO_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/semaphore.h>
|
|
#include <linux/sizes.h>
|
|
|
|
#include "hinic_hw_if.h"
|
|
#include "hinic_hw_eqs.h"
|
|
#include "hinic_hw_wq.h"
|
|
#include "hinic_hw_cmdq.h"
|
|
#include "hinic_hw_qp.h"
|
|
|
|
#define HINIC_DB_PAGE_SIZE SZ_4K
|
|
#define HINIC_DB_SIZE SZ_4M
|
|
|
|
#define HINIC_DB_MAX_AREAS (HINIC_DB_SIZE / HINIC_DB_PAGE_SIZE)
|
|
|
|
enum hinic_db_type {
|
|
HINIC_DB_CMDQ_TYPE,
|
|
HINIC_DB_SQ_TYPE,
|
|
};
|
|
|
|
enum hinic_io_path {
|
|
HINIC_CTRL_PATH,
|
|
HINIC_DATA_PATH,
|
|
};
|
|
|
|
struct hinic_free_db_area {
|
|
int db_idx[HINIC_DB_MAX_AREAS];
|
|
|
|
int alloc_pos;
|
|
int return_pos;
|
|
|
|
int num_free;
|
|
|
|
/* Lock for getting db area */
|
|
struct semaphore idx_lock;
|
|
};
|
|
|
|
struct hinic_func_to_io {
|
|
struct hinic_hwif *hwif;
|
|
|
|
struct hinic_ceqs ceqs;
|
|
|
|
struct hinic_wqs wqs;
|
|
|
|
struct hinic_wq *sq_wq;
|
|
struct hinic_wq *rq_wq;
|
|
|
|
struct hinic_qp *qps;
|
|
u16 max_qps;
|
|
|
|
void __iomem **sq_db;
|
|
void __iomem *db_base;
|
|
|
|
void *ci_addr_base;
|
|
dma_addr_t ci_dma_base;
|
|
|
|
struct hinic_free_db_area free_db_area;
|
|
|
|
void __iomem *cmdq_db_area[HINIC_MAX_CMDQ_TYPES];
|
|
|
|
struct hinic_cmdqs cmdqs;
|
|
};
|
|
|
|
int hinic_io_create_qps(struct hinic_func_to_io *func_to_io,
|
|
u16 base_qpn, int num_qps,
|
|
struct msix_entry *sq_msix_entries,
|
|
struct msix_entry *rq_msix_entries);
|
|
|
|
void hinic_io_destroy_qps(struct hinic_func_to_io *func_to_io,
|
|
int num_qps);
|
|
|
|
int hinic_io_init(struct hinic_func_to_io *func_to_io,
|
|
struct hinic_hwif *hwif, u16 max_qps, int num_ceqs,
|
|
struct msix_entry *ceq_msix_entries);
|
|
|
|
void hinic_io_free(struct hinic_func_to_io *func_to_io);
|
|
|
|
#endif
|