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(desc, &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(desc, &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