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111 lines
2.9 KiB
111 lines
2.9 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Huawei HiNIC PCI Express Linux driver |
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* Copyright(c) 2017 Huawei Technologies Co., Ltd |
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*/ |
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#ifndef HINIC_HW_WQ_H |
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#define HINIC_HW_WQ_H |
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#include <linux/types.h> |
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#include <linux/semaphore.h> |
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#include <linux/atomic.h> |
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#include "hinic_hw_if.h" |
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#include "hinic_hw_wqe.h" |
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struct hinic_free_block { |
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int page_idx; |
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int block_idx; |
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}; |
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struct hinic_wq { |
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struct hinic_hwif *hwif; |
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int page_idx; |
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int block_idx; |
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u16 wqebb_size; |
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u32 wq_page_size; |
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u16 q_depth; |
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u16 max_wqe_size; |
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u16 num_wqebbs_per_page; |
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u16 wqebbs_per_page_shift; |
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u16 wqebb_size_shift; |
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/* The addresses are 64 bit in the HW */ |
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u64 block_paddr; |
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void **shadow_block_vaddr; |
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u64 *block_vaddr; |
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int num_q_pages; |
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u8 *shadow_wqe; |
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u16 *shadow_idx; |
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atomic_t cons_idx; |
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atomic_t prod_idx; |
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atomic_t delta; |
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u16 mask; |
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}; |
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struct hinic_wqs { |
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struct hinic_hwif *hwif; |
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int num_pages; |
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/* The addresses are 64 bit in the HW */ |
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u64 *page_paddr; |
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u64 **page_vaddr; |
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void ***shadow_page_vaddr; |
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struct hinic_free_block *free_blocks; |
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int alloc_blk_pos; |
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int return_blk_pos; |
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int num_free_blks; |
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/* Lock for getting a free block from the WQ set */ |
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struct semaphore alloc_blocks_lock; |
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}; |
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struct hinic_cmdq_pages { |
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/* The addresses are 64 bit in the HW */ |
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u64 page_paddr; |
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u64 *page_vaddr; |
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void **shadow_page_vaddr; |
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struct hinic_hwif *hwif; |
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}; |
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int hinic_wqs_cmdq_alloc(struct hinic_cmdq_pages *cmdq_pages, |
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struct hinic_wq *wq, struct hinic_hwif *hwif, |
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int cmdq_blocks, u16 wqebb_size, u32 wq_page_size, |
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u16 q_depth, u16 max_wqe_size); |
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void hinic_wqs_cmdq_free(struct hinic_cmdq_pages *cmdq_pages, |
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struct hinic_wq *wq, int cmdq_blocks); |
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int hinic_wqs_alloc(struct hinic_wqs *wqs, int num_wqs, |
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struct hinic_hwif *hwif); |
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void hinic_wqs_free(struct hinic_wqs *wqs); |
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int hinic_wq_allocate(struct hinic_wqs *wqs, struct hinic_wq *wq, |
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u16 wqebb_size, u32 wq_page_size, u16 q_depth, |
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u16 max_wqe_size); |
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void hinic_wq_free(struct hinic_wqs *wqs, struct hinic_wq *wq); |
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struct hinic_hw_wqe *hinic_get_wqe(struct hinic_wq *wq, unsigned int wqe_size, |
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u16 *prod_idx); |
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void hinic_return_wqe(struct hinic_wq *wq, unsigned int wqe_size); |
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void hinic_put_wqe(struct hinic_wq *wq, unsigned int wqe_size); |
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struct hinic_hw_wqe *hinic_read_wqe(struct hinic_wq *wq, unsigned int wqe_size, |
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u16 *cons_idx); |
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struct hinic_hw_wqe *hinic_read_wqe_direct(struct hinic_wq *wq, u16 cons_idx); |
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void hinic_write_wqe(struct hinic_wq *wq, struct hinic_hw_wqe *wqe, |
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unsigned int wqe_size); |
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#endif
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