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 151