/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 */
#ifndef _VNIC_CQ_COPY_H_
#define _VNIC_CQ_COPY_H_

#include "fcpio.h"

static inline unsigned int vnic_cq_copy_service(
        struct vnic_cq *cq,
        int (*q_service)(struct vnic_dev *vdev,
                         unsigned int index,
                         struct fcpio_fw_req *desc),
        unsigned int work_to_do)

{
        struct fcpio_fw_req *desc;
        unsigned int work_done = 0;
        u8 color;

        desc = (struct fcpio_fw_req *)((u8 *)cq->ring.descs +
                cq->ring.desc_size * cq->to_clean);
        fcpio_color_dec(desc, &color);

        while (color != cq->last_color) {

                if ((*q_service)(cq->vdev, cq->index, desc))
                        break;

                cq->to_clean++;
                if (cq->to_clean == cq->ring.desc_count) {
                        cq->to_clean = 0;
                        cq->last_color = cq->last_color ? 0 : 1;
                }

                desc = (struct fcpio_fw_req *)((u8 *)cq->ring.descs +
                        cq->ring.desc_size * cq->to_clean);
                fcpio_color_dec(desc, &color);

                work_done++;
                if (work_done >= work_to_do)
                        break;
        }

        return work_done;
}

#endif /* _VNIC_CQ_COPY_H_ */