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62 lines
1.7 KiB
62 lines
1.7 KiB
/* |
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* Copyright 2014 Cisco Systems, Inc. All rights reserved. |
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* |
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* This program is free software; you may redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; version 2 of the License. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#ifndef _VNIC_CQ_FW_H_ |
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#define _VNIC_CQ_FW_H_ |
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#include "snic_fwint.h" |
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static inline unsigned int |
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vnic_cq_fw_service(struct vnic_cq *cq, |
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int (*q_service)(struct vnic_dev *vdev, |
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unsigned int index, |
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struct snic_fw_req *desc), |
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unsigned int work_to_do) |
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{ |
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struct snic_fw_req *desc; |
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unsigned int work_done = 0; |
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u8 color; |
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desc = (struct snic_fw_req *)((u8 *)cq->ring.descs + |
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cq->ring.desc_size * cq->to_clean); |
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snic_color_dec(desc, &color); |
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while (color != cq->last_color) { |
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if ((*q_service)(cq->vdev, cq->index, desc)) |
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break; |
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cq->to_clean++; |
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if (cq->to_clean == cq->ring.desc_count) { |
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cq->to_clean = 0; |
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cq->last_color = cq->last_color ? 0 : 1; |
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} |
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desc = (struct snic_fw_req *)((u8 *)cq->ring.descs + |
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cq->ring.desc_size * cq->to_clean); |
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snic_color_dec(desc, &color); |
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work_done++; |
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if (work_done >= work_to_do) |
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break; |
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} |
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return work_done; |
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} |
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#endif /* _VNIC_CQ_FW_H_ */
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