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gerrit-public.fairphone.software / kernel / msm-5.4 / 908d10b02b80a81c5dd1cee88165db2a30e23d45 / . / drivers / infiniband / hw / bnxt_re / bnxt_re.h
blob: 08772836fded416e41be8eccfe53cf3e8427691b [file] [log] [blame]
Selvin Xavier1ac5a402017-02-10 03:19:33 -0800[diff] [blame]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
Somnath Kotur3fb755b2017-05-22 03:15:36 -0700[diff] [blame]59#define BNXT_RE_UD_QP_HW_STALL 0x400000
60
Devesh Sharma018cf592017-05-22 03:15:40 -0700[diff] [blame]61#define BNXT_RE_RQ_WQE_THRESHOLD 32
62
Selvin Xavier1ac5a402017-02-10 03:19:33 -0800[diff] [blame]63struct 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
70struct 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
83struct 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
143static 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