diff options
Diffstat (limited to 'drivers/net/enic/vnic_cq.h')
-rw-r--r-- | drivers/net/enic/vnic_cq.h | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/drivers/net/enic/vnic_cq.h b/drivers/net/enic/vnic_cq.h deleted file mode 100644 index 579315cbe803..000000000000 --- a/drivers/net/enic/vnic_cq.h +++ /dev/null @@ -1,114 +0,0 @@ -/* - * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - */ - -#ifndef _VNIC_CQ_H_ -#define _VNIC_CQ_H_ - -#include "cq_desc.h" -#include "vnic_dev.h" - -/* Completion queue control */ -struct vnic_cq_ctrl { - u64 ring_base; /* 0x00 */ - u32 ring_size; /* 0x08 */ - u32 pad0; - u32 flow_control_enable; /* 0x10 */ - u32 pad1; - u32 color_enable; /* 0x18 */ - u32 pad2; - u32 cq_head; /* 0x20 */ - u32 pad3; - u32 cq_tail; /* 0x28 */ - u32 pad4; - u32 cq_tail_color; /* 0x30 */ - u32 pad5; - u32 interrupt_enable; /* 0x38 */ - u32 pad6; - u32 cq_entry_enable; /* 0x40 */ - u32 pad7; - u32 cq_message_enable; /* 0x48 */ - u32 pad8; - u32 interrupt_offset; /* 0x50 */ - u32 pad9; - u64 cq_message_addr; /* 0x58 */ - u32 pad10; -}; - -struct vnic_cq { - unsigned int index; - struct vnic_dev *vdev; - struct vnic_cq_ctrl __iomem *ctrl; /* memory-mapped */ - struct vnic_dev_ring ring; - unsigned int to_clean; - unsigned int last_color; - unsigned int interrupt_offset; -}; - -static inline unsigned int vnic_cq_service(struct vnic_cq *cq, - unsigned int work_to_do, - int (*q_service)(struct vnic_dev *vdev, struct cq_desc *cq_desc, - u8 type, u16 q_number, u16 completed_index, void *opaque), - void *opaque) -{ - struct cq_desc *cq_desc; - unsigned int work_done = 0; - u16 q_number, completed_index; - u8 type, color; - - cq_desc = (struct cq_desc *)((u8 *)cq->ring.descs + - cq->ring.desc_size * cq->to_clean); - cq_desc_dec(cq_desc, &type, &color, - &q_number, &completed_index); - - while (color != cq->last_color) { - - if ((*q_service)(cq->vdev, cq_desc, type, - q_number, completed_index, opaque)) - break; - - cq->to_clean++; - if (cq->to_clean == cq->ring.desc_count) { - cq->to_clean = 0; - cq->last_color = cq->last_color ? 0 : 1; - } - - cq_desc = (struct cq_desc *)((u8 *)cq->ring.descs + - cq->ring.desc_size * cq->to_clean); - cq_desc_dec(cq_desc, &type, &color, - &q_number, &completed_index); - - work_done++; - if (work_done >= work_to_do) - break; - } - - return work_done; -} - -void vnic_cq_free(struct vnic_cq *cq); -int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index, - unsigned int desc_count, unsigned int desc_size); -void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable, - unsigned int color_enable, unsigned int cq_head, unsigned int cq_tail, - unsigned int cq_tail_color, unsigned int interrupt_enable, - unsigned int cq_entry_enable, unsigned int message_enable, - unsigned int interrupt_offset, u64 message_addr); -void vnic_cq_clean(struct vnic_cq *cq); - -#endif /* _VNIC_CQ_H_ */ |