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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_QP_H
#define HINIC_HW_QP_H

#include <linux/types.h>
#include <linux/sizes.h>
#include <linux/pci.h>
#include <linux/skbuff.h>

#include "hinic_hw_if.h"
#include "hinic_hw_wqe.h"
#include "hinic_hw_wq.h"
#include "hinic_hw_qp_ctxt.h"

#define HINIC_SQ_WQEBB_SIZE                     64
#define HINIC_RQ_WQEBB_SIZE                     32

#define HINIC_SQ_PAGE_SIZE                      SZ_4K
#define HINIC_RQ_PAGE_SIZE                      SZ_4K

#define HINIC_SQ_DEPTH                          SZ_4K
#define HINIC_RQ_DEPTH                          SZ_4K

#define HINIC_RX_BUF_SZ                         2048

struct hinic_sq {
	struct hinic_hwif       *hwif;

	struct hinic_wq         *wq;

	u32                     irq;
	u16                     msix_entry;

	void                    *hw_ci_addr;
	dma_addr_t              hw_ci_dma_addr;

	void __iomem            *db_base;

	struct sk_buff          **saved_skb;
};

struct hinic_rq {
	struct hinic_hwif       *hwif;

	struct hinic_wq         *wq;

	u32                     irq;
	u16                     msix_entry;

	size_t                  buf_sz;

	struct sk_buff          **saved_skb;

	struct hinic_rq_cqe     **cqe;
	dma_addr_t              *cqe_dma;

	u16                     *pi_virt_addr;
	dma_addr_t              pi_dma_addr;
};

struct hinic_qp {
	struct hinic_sq         sq;
	struct hinic_rq         rq;

	u16     q_id;
};

void hinic_qp_prepare_header(struct hinic_qp_ctxt_header *qp_ctxt_hdr,
			     enum hinic_qp_ctxt_type ctxt_type,
			     u16 num_queues, u16 max_queues);

void hinic_sq_prepare_ctxt(struct hinic_sq_ctxt *sq_ctxt,
			   struct hinic_sq *sq, u16 global_qid);

void hinic_rq_prepare_ctxt(struct hinic_rq_ctxt *rq_ctxt,
			   struct hinic_rq *rq, u16 global_qid);

int hinic_init_sq(struct hinic_sq *sq, struct hinic_hwif *hwif,
		  struct hinic_wq *wq, struct msix_entry *entry, void *ci_addr,
		  dma_addr_t ci_dma_addr, void __iomem *db_base);

void hinic_clean_sq(struct hinic_sq *sq);

int hinic_init_rq(struct hinic_rq *rq, struct hinic_hwif *hwif,
		  struct hinic_wq *wq, struct msix_entry *entry);

void hinic_clean_rq(struct hinic_rq *rq);

#endif