72f3de308f
move enic PMD to drivers/net directory Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: John McNamara <john.mcnamara@intel.com> [Thomas: move vnic/ to base/] Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
152 lines
4.5 KiB
C
152 lines
4.5 KiB
C
/*
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* Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*
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* Copyright (c) 2014, Cisco Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ident "$Id: vnic_cq.h 173398 2014-05-19 09:17:02Z gvaradar $"
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#ifndef _VNIC_CQ_H_
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#define _VNIC_CQ_H_
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#include <rte_mbuf.h>
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#include "cq_desc.h"
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#include "vnic_dev.h"
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/* Completion queue control */
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struct vnic_cq_ctrl {
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u64 ring_base; /* 0x00 */
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u32 ring_size; /* 0x08 */
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u32 pad0;
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u32 flow_control_enable; /* 0x10 */
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u32 pad1;
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u32 color_enable; /* 0x18 */
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u32 pad2;
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u32 cq_head; /* 0x20 */
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u32 pad3;
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u32 cq_tail; /* 0x28 */
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u32 pad4;
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u32 cq_tail_color; /* 0x30 */
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u32 pad5;
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u32 interrupt_enable; /* 0x38 */
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u32 pad6;
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u32 cq_entry_enable; /* 0x40 */
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u32 pad7;
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u32 cq_message_enable; /* 0x48 */
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u32 pad8;
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u32 interrupt_offset; /* 0x50 */
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u32 pad9;
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u64 cq_message_addr; /* 0x58 */
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u32 pad10;
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};
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#ifdef ENIC_AIC
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struct vnic_rx_bytes_counter {
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unsigned int small_pkt_bytes_cnt;
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unsigned int large_pkt_bytes_cnt;
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};
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#endif
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struct vnic_cq {
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unsigned int index;
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struct vnic_dev *vdev;
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struct vnic_cq_ctrl __iomem *ctrl; /* memory-mapped */
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struct vnic_dev_ring ring;
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unsigned int to_clean;
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unsigned int last_color;
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unsigned int interrupt_offset;
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#ifdef ENIC_AIC
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struct vnic_rx_bytes_counter pkt_size_counter;
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unsigned int cur_rx_coal_timeval;
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unsigned int tobe_rx_coal_timeval;
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ktime_t prev_ts;
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#endif
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};
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static inline unsigned int vnic_cq_service(struct vnic_cq *cq,
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unsigned int work_to_do,
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int (*q_service)(struct vnic_dev *vdev, struct cq_desc *cq_desc,
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u8 type, u16 q_number, u16 completed_index, void *opaque),
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void *opaque)
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{
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struct cq_desc *cq_desc;
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unsigned int work_done = 0;
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u16 q_number, completed_index;
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u8 type, color;
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struct rte_mbuf **rx_pkts = opaque;
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unsigned int ret;
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cq_desc = (struct cq_desc *)((u8 *)cq->ring.descs +
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cq->ring.desc_size * cq->to_clean);
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cq_desc_dec(cq_desc, &type, &color,
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&q_number, &completed_index);
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while (color != cq->last_color) {
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if (opaque)
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opaque = (void *)&(rx_pkts[work_done]);
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ret = (*q_service)(cq->vdev, cq_desc, type,
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q_number, completed_index, opaque);
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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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cq_desc = (struct cq_desc *)((u8 *)cq->ring.descs +
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cq->ring.desc_size * cq->to_clean);
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cq_desc_dec(cq_desc, &type, &color,
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&q_number, &completed_index);
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if (ret)
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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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void vnic_cq_free(struct vnic_cq *cq);
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int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index,
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unsigned int socket_id,
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unsigned int desc_count, unsigned int desc_size);
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void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable,
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unsigned int color_enable, unsigned int cq_head, unsigned int cq_tail,
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unsigned int cq_tail_color, unsigned int interrupt_enable,
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unsigned int cq_entry_enable, unsigned int message_enable,
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unsigned int interrupt_offset, u64 message_addr);
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void vnic_cq_clean(struct vnic_cq *cq);
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int vnic_cq_mem_size(struct vnic_cq *cq, unsigned int desc_count,
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unsigned int desc_size);
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#endif /* _VNIC_CQ_H_ */
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