1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2008 Cisco Systems, Inc. All rights reserved.
4 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 */
6#ifndef _VNIC_CQ_COPY_H_
7#define _VNIC_CQ_COPY_H_
8
9#include "fcpio.h"
10
11static inline unsigned int vnic_cq_copy_service(
12 struct vnic_cq *cq,
13 int (*q_service)(struct vnic_dev *vdev,
14 unsigned int index,
15 struct fcpio_fw_req *desc),
16 unsigned int work_to_do)
17
18{
19 struct fcpio_fw_req *desc;
20 unsigned int work_done = 0;
21 u8 color;
22
23 desc = (struct fcpio_fw_req *)((u8 *)cq->ring.descs +
24 cq->ring.desc_size * cq->to_clean);
25 fcpio_color_dec(fw_req: desc, color: &color);
26
27 while (color != cq->last_color) {
28
29 if ((*q_service)(cq->vdev, cq->index, desc))
30 break;
31
32 cq->to_clean++;
33 if (cq->to_clean == cq->ring.desc_count) {
34 cq->to_clean = 0;
35 cq->last_color = cq->last_color ? 0 : 1;
36 }
37
38 desc = (struct fcpio_fw_req *)((u8 *)cq->ring.descs +
39 cq->ring.desc_size * cq->to_clean);
40 fcpio_color_dec(fw_req: desc, color: &color);
41
42 work_done++;
43 if (work_done >= work_to_do)
44 break;
45 }
46
47 return work_done;
48}
49
50#endif /* _VNIC_CQ_COPY_H_ */
51

source code of linux/drivers/scsi/fnic/vnic_cq_copy.h