| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
|---|---|
| 2 | /* Copyright 2014 Cisco Systems, Inc. All rights reserved. */ |
| 3 | |
| 4 | #ifndef _VNIC_CQ_FW_H_ |
| 5 | #define _VNIC_CQ_FW_H_ |
| 6 | |
| 7 | #include "snic_fwint.h" |
| 8 | |
| 9 | static inline unsigned int |
| 10 | vnic_cq_fw_service(struct vnic_cq *cq, |
| 11 | int (*q_service)(struct vnic_dev *vdev, |
| 12 | unsigned int index, |
| 13 | struct snic_fw_req *desc), |
| 14 | unsigned int work_to_do) |
| 15 | |
| 16 | { |
| 17 | struct snic_fw_req *desc; |
| 18 | unsigned int work_done = 0; |
| 19 | u8 color; |
| 20 | |
| 21 | desc = (struct snic_fw_req *)((u8 *)cq->ring.descs + |
| 22 | cq->ring.desc_size * cq->to_clean); |
| 23 | snic_color_dec(req: desc, color: &color); |
| 24 | |
| 25 | while (color != cq->last_color) { |
| 26 | |
| 27 | if ((*q_service)(cq->vdev, cq->index, desc)) |
| 28 | break; |
| 29 | |
| 30 | cq->to_clean++; |
| 31 | if (cq->to_clean == cq->ring.desc_count) { |
| 32 | cq->to_clean = 0; |
| 33 | cq->last_color = cq->last_color ? 0 : 1; |
| 34 | } |
| 35 | |
| 36 | desc = (struct snic_fw_req *)((u8 *)cq->ring.descs + |
| 37 | cq->ring.desc_size * cq->to_clean); |
| 38 | snic_color_dec(req: desc, color: &color); |
| 39 | |
| 40 | work_done++; |
| 41 | if (work_done >= work_to_do) |
| 42 | break; |
| 43 | } |
| 44 | |
| 45 | return work_done; |
| 46 | } |
| 47 | |
| 48 | #endif /* _VNIC_CQ_FW_H_ */ |
| 49 |