ceph/src/dpdk/drivers/net/enic/base/vnic_cq.h

   1 /*
   2  * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
   3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4  *
   5  * Copyright (c) 2014, Cisco Systems, Inc.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  * notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  * notice, this list of conditions and the following disclaimer in
  17  * the documentation and/or other materials provided with the
  18  * distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  24  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  28  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  */
  34
  35 #ifndef _VNIC_CQ_H_
  36 #define _VNIC_CQ_H_
  37
  38 #include <rte_mbuf.h>
  39
  40 #include "cq_desc.h"
  41 #include "vnic_dev.h"
  42
  43 /* Completion queue control */
  44 struct vnic_cq_ctrl {
  45         u64 ring_base;                  /* 0x00 */
  46         u32 ring_size;                  /* 0x08 */
  47         u32 pad0;
  48         u32 flow_control_enable;        /* 0x10 */
  49         u32 pad1;
  50         u32 color_enable;               /* 0x18 */
  51         u32 pad2;
  52         u32 cq_head;                    /* 0x20 */
  53         u32 pad3;
  54         u32 cq_tail;                    /* 0x28 */
  55         u32 pad4;
  56         u32 cq_tail_color;              /* 0x30 */
  57         u32 pad5;
  58         u32 interrupt_enable;           /* 0x38 */
  59         u32 pad6;
  60         u32 cq_entry_enable;            /* 0x40 */
  61         u32 pad7;
  62         u32 cq_message_enable;          /* 0x48 */
  63         u32 pad8;
  64         u32 interrupt_offset;           /* 0x50 */
  65         u32 pad9;
  66         u64 cq_message_addr;            /* 0x58 */
  67         u32 pad10;
  68 };
  69
  70 #ifdef ENIC_AIC
  71 struct vnic_rx_bytes_counter {
  72         unsigned int small_pkt_bytes_cnt;
  73         unsigned int large_pkt_bytes_cnt;
  74 };
  75 #endif
  76
  77 struct vnic_cq {
  78         unsigned int index;
  79         struct vnic_dev *vdev;
  80         struct vnic_cq_ctrl __iomem *ctrl;              /* memory-mapped */
  81         struct vnic_dev_ring ring;
  82         unsigned int to_clean;
  83         unsigned int last_color;
  84         unsigned int interrupt_offset;
  85 #ifdef ENIC_AIC
  86         struct vnic_rx_bytes_counter pkt_size_counter;
  87         unsigned int cur_rx_coal_timeval;
  88         unsigned int tobe_rx_coal_timeval;
  89         ktime_t prev_ts;
  90 #endif
  91 };
  92
  93 void vnic_cq_free(struct vnic_cq *cq);
  94 int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index,
  95         unsigned int socket_id,
  96         unsigned int desc_count, unsigned int desc_size);
  97 void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable,
  98         unsigned int color_enable, unsigned int cq_head, unsigned int cq_tail,
  99         unsigned int cq_tail_color, unsigned int interrupt_enable,
 100         unsigned int cq_entry_enable, unsigned int message_enable,
 101         unsigned int interrupt_offset, u64 message_addr);
 102 void vnic_cq_clean(struct vnic_cq *cq);
 103 int vnic_cq_mem_size(struct vnic_cq *cq, unsigned int desc_count,
 104         unsigned int desc_size);
 105
 106 #endif /* _VNIC_CQ_H_ */