drivers/infiniband/hw/bnxt_re/bnxt_re.h

   1 /*
   2  * Broadcom NetXtreme-E RoCE driver.
   3  *
   4  * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
   5  * Broadcom refers to Broadcom Limited and/or its subsidiaries.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * BSD license below:
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  *
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in
  21  *    the documentation and/or other materials provided with the
  22  *    distribution.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  26  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  27  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
  28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  33  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  34  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  * Description: Slow Path Operators (header)
  37  *
  38  */
  39
  40 #ifndef __BNXT_RE_H__
  41 #define __BNXT_RE_H__
  42 #define ROCE_DRV_MODULE_NAME            "bnxt_re"
  43 #define ROCE_DRV_MODULE_VERSION         "1.0.0"
  44
  45 #define BNXT_RE_DESC    "Broadcom NetXtreme-C/E RoCE Driver"
  46
  47 #define BNXT_RE_PAGE_SIZE_4K            BIT(12)
  48 #define BNXT_RE_PAGE_SIZE_8K            BIT(13)
  49 #define BNXT_RE_PAGE_SIZE_64K           BIT(16)
  50 #define BNXT_RE_PAGE_SIZE_2M            BIT(21)
  51 #define BNXT_RE_PAGE_SIZE_8M            BIT(23)
  52 #define BNXT_RE_PAGE_SIZE_1G            BIT(30)
  53
  54 #define BNXT_RE_MAX_QPC_COUNT           (64 * 1024)
  55 #define BNXT_RE_MAX_MRW_COUNT           (64 * 1024)
  56 #define BNXT_RE_MAX_SRQC_COUNT          (64 * 1024)
  57 #define BNXT_RE_MAX_CQ_COUNT            (64 * 1024)
  58
  59 #define BNXT_RE_UD_QP_HW_STALL          0x400000
  60
  61 #define BNXT_RE_RQ_WQE_THRESHOLD        32
  62
  63 struct bnxt_re_work {
  64         struct work_struct      work;
  65         unsigned long           event;
  66         struct bnxt_re_dev      *rdev;
  67         struct net_device       *vlan_dev;
  68 };
  69
  70 struct bnxt_re_sqp_entries {
  71         struct bnxt_qplib_sge sge;
  72         u64 wrid;
  73         /* For storing the actual qp1 cqe */
  74         struct bnxt_qplib_cqe cqe;
  75         struct bnxt_re_qp *qp1_qp;
  76 };
  77
  78 #define BNXT_RE_MIN_MSIX                2
  79 #define BNXT_RE_MAX_MSIX                16
  80 #define BNXT_RE_AEQ_IDX                 0
  81 #define BNXT_RE_NQ_IDX                  1
  82
  83 struct bnxt_re_dev {
  84         struct ib_device                ibdev;
  85         struct list_head                list;
  86         unsigned long                   flags;
  87 #define BNXT_RE_FLAG_NETDEV_REGISTERED  0
  88 #define BNXT_RE_FLAG_IBDEV_REGISTERED   1
  89 #define BNXT_RE_FLAG_GOT_MSIX           2
  90 #define BNXT_RE_FLAG_RCFW_CHANNEL_EN    8
  91 #define BNXT_RE_FLAG_QOS_WORK_REG       16
  92         struct net_device               *netdev;
  93         unsigned int                    version, major, minor;
  94         struct bnxt_en_dev              *en_dev;
  95         struct bnxt_msix_entry          msix_entries[BNXT_RE_MAX_MSIX];
  96         int                             num_msix;
  97
  98         int                             id;
  99
 100         struct delayed_work             worker;
 101         u8                              cur_prio_map;
 102
 103         /* FP Notification Queue (CQ & SRQ) */
 104         struct tasklet_struct           nq_task;
 105
 106         /* RCFW Channel */
 107         struct bnxt_qplib_rcfw          rcfw;
 108
 109         /* NQ */
 110         struct bnxt_qplib_nq            nq;
 111
 112         /* Device Resources */
 113         struct bnxt_qplib_dev_attr      dev_attr;
 114         struct bnxt_qplib_ctx           qplib_ctx;
 115         struct bnxt_qplib_res           qplib_res;
 116         struct bnxt_qplib_dpi           dpi_privileged;
 117
 118         atomic_t                        qp_count;
 119         struct mutex                    qp_lock;        /* protect qp list */
 120         struct list_head                qp_list;
 121
 122         atomic_t                        cq_count;
 123         atomic_t                        srq_count;
 124         atomic_t                        mr_count;
 125         atomic_t                        mw_count;
 126         /* Max of 2 lossless traffic class supported per port */
 127         u16                             cosq[2];
 128
 129         /* QP for for handling QP1 packets */
 130         u32                             sqp_id;
 131         struct bnxt_re_qp               *qp1_sqp;
 132         struct bnxt_re_ah               *sqp_ah;
 133         struct bnxt_re_sqp_entries sqp_tbl[1024];
 134 };
 135
 136 #define to_bnxt_re_dev(ptr, member)     \
 137         container_of((ptr), struct bnxt_re_dev, member)
 138
 139 #define BNXT_RE_ROCE_V1_PACKET          0
 140 #define BNXT_RE_ROCEV2_IPV4_PACKET      2
 141 #define BNXT_RE_ROCEV2_IPV6_PACKET      3
 142
 143 static inline struct device *rdev_to_dev(struct bnxt_re_dev *rdev)
 144 {
 145         if (rdev)
 146                 return  &rdev->ibdev.dev;
 147         return NULL;
 148 }
 149
 150 #endif