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