112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
||
|
|
/*
|
||
|
|
* Huawei HiNIC PCI Express Linux driver
|
||
|
|
* Copyright(c) 2017 Huawei Technologies Co., Ltd
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef HINIC_HW_WQ_H
|
||
|
|
#define HINIC_HW_WQ_H
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/semaphore.h>
|
||
|
|
#include <linux/atomic.h>
|
||
|
|
|
||
|
|
#include "hinic_hw_if.h"
|
||
|
|
#include "hinic_hw_wqe.h"
|
||
|
|
|
||
|
|
struct hinic_free_block {
|
||
|
|
int page_idx;
|
||
|
|
int block_idx;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct hinic_wq {
|
||
|
|
struct hinic_hwif *hwif;
|
||
|
|
|
||
|
|
int page_idx;
|
||
|
|
int block_idx;
|
||
|
|
|
||
|
|
u16 wqebb_size;
|
||
|
|
u16 wq_page_size;
|
||
|
|
u16 q_depth;
|
||
|
|
u16 max_wqe_size;
|
||
|
|
u16 num_wqebbs_per_page;
|
||
|
|
u16 wqebbs_per_page_shift;
|
||
|
|
u16 wqebb_size_shift;
|
||
|
|
/* The addresses are 64 bit in the HW */
|
||
|
|
u64 block_paddr;
|
||
|
|
void **shadow_block_vaddr;
|
||
|
|
u64 *block_vaddr;
|
||
|
|
|
||
|
|
int num_q_pages;
|
||
|
|
u8 *shadow_wqe;
|
||
|
|
u16 *shadow_idx;
|
||
|
|
|
||
|
|
atomic_t cons_idx;
|
||
|
|
atomic_t prod_idx;
|
||
|
|
atomic_t delta;
|
||
|
|
u16 mask;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct hinic_wqs {
|
||
|
|
struct hinic_hwif *hwif;
|
||
|
|
int num_pages;
|
||
|
|
|
||
|
|
/* The addresses are 64 bit in the HW */
|
||
|
|
u64 *page_paddr;
|
||
|
|
u64 **page_vaddr;
|
||
|
|
void ***shadow_page_vaddr;
|
||
|
|
|
||
|
|
struct hinic_free_block *free_blocks;
|
||
|
|
int alloc_blk_pos;
|
||
|
|
int return_blk_pos;
|
||
|
|
int num_free_blks;
|
||
|
|
|
||
|
|
/* Lock for getting a free block from the WQ set */
|
||
|
|
struct semaphore alloc_blocks_lock;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct hinic_cmdq_pages {
|
||
|
|
/* The addresses are 64 bit in the HW */
|
||
|
|
u64 page_paddr;
|
||
|
|
u64 *page_vaddr;
|
||
|
|
void **shadow_page_vaddr;
|
||
|
|
|
||
|
|
struct hinic_hwif *hwif;
|
||
|
|
};
|
||
|
|
|
||
|
|
int hinic_wqs_cmdq_alloc(struct hinic_cmdq_pages *cmdq_pages,
|
||
|
|
struct hinic_wq *wq, struct hinic_hwif *hwif,
|
||
|
|
int cmdq_blocks, u16 wqebb_size, u16 wq_page_size,
|
||
|
|
u16 q_depth, u16 max_wqe_size);
|
||
|
|
|
||
|
|
void hinic_wqs_cmdq_free(struct hinic_cmdq_pages *cmdq_pages,
|
||
|
|
struct hinic_wq *wq, int cmdq_blocks);
|
||
|
|
|
||
|
|
int hinic_wqs_alloc(struct hinic_wqs *wqs, int num_wqs,
|
||
|
|
struct hinic_hwif *hwif);
|
||
|
|
|
||
|
|
void hinic_wqs_free(struct hinic_wqs *wqs);
|
||
|
|
|
||
|
|
int hinic_wq_allocate(struct hinic_wqs *wqs, struct hinic_wq *wq,
|
||
|
|
u16 wqebb_size, u16 wq_page_size, u16 q_depth,
|
||
|
|
u16 max_wqe_size);
|
||
|
|
|
||
|
|
void hinic_wq_free(struct hinic_wqs *wqs, struct hinic_wq *wq);
|
||
|
|
|
||
|
|
struct hinic_hw_wqe *hinic_get_wqe(struct hinic_wq *wq, unsigned int wqe_size,
|
||
|
|
u16 *prod_idx);
|
||
|
|
|
||
|
|
void hinic_return_wqe(struct hinic_wq *wq, unsigned int wqe_size);
|
||
|
|
|
||
|
|
void hinic_put_wqe(struct hinic_wq *wq, unsigned int wqe_size);
|
||
|
|
|
||
|
|
struct hinic_hw_wqe *hinic_read_wqe(struct hinic_wq *wq, unsigned int wqe_size,
|
||
|
|
u16 *cons_idx);
|
||
|
|
|
||
|
|
struct hinic_hw_wqe *hinic_read_wqe_direct(struct hinic_wq *wq, u16 cons_idx);
|
||
|
|
|
||
|
|
void hinic_write_wqe(struct hinic_wq *wq, struct hinic_hw_wqe *wqe,
|
||
|
|
unsigned int wqe_size);
|
||
|
|
|
||
|
|
#endif
|