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
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)11 static 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(desc, &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(desc, &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