2 * Broadcom NetXtreme-E RoCE driver.
4 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
5 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
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
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
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
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.
36 * Description: Slow Path Operators (header)
42 #define ROCE_DRV_MODULE_NAME "bnxt_re"
43 #define ROCE_DRV_MODULE_VERSION "1.0.0"
45 #define BNXT_RE_DESC "Broadcom NetXtreme-C/E RoCE Driver"
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)
54 #define BNXT_RE_MAX_MR_SIZE BIT(30)
56 #define BNXT_RE_MAX_QPC_COUNT (64 * 1024)
57 #define BNXT_RE_MAX_MRW_COUNT (64 * 1024)
58 #define BNXT_RE_MAX_SRQC_COUNT (64 * 1024)
59 #define BNXT_RE_MAX_CQ_COUNT (64 * 1024)
61 #define BNXT_RE_UD_QP_HW_STALL 0x400000
63 #define BNXT_RE_RQ_WQE_THRESHOLD 32
66 * Setting the default ack delay value to 16, which means
67 * the default timeout is approx. 260ms(4 usec * 2 ^(timeout))
70 #define BNXT_RE_DEFAULT_ACK_DELAY 16
73 struct work_struct work
;
75 struct bnxt_re_dev
*rdev
;
76 struct net_device
*vlan_dev
;
79 struct bnxt_re_sqp_entries
{
80 struct bnxt_qplib_sge sge
;
82 /* For storing the actual qp1 cqe */
83 struct bnxt_qplib_cqe cqe
;
84 struct bnxt_re_qp
*qp1_qp
;
87 #define BNXT_RE_MIN_MSIX 2
88 #define BNXT_RE_MAX_MSIX 9
89 #define BNXT_RE_AEQ_IDX 0
90 #define BNXT_RE_NQ_IDX 1
93 struct ib_device ibdev
;
94 struct list_head list
;
96 #define BNXT_RE_FLAG_NETDEV_REGISTERED 0
97 #define BNXT_RE_FLAG_IBDEV_REGISTERED 1
98 #define BNXT_RE_FLAG_GOT_MSIX 2
99 #define BNXT_RE_FLAG_HAVE_L2_REF 3
100 #define BNXT_RE_FLAG_RCFW_CHANNEL_EN 4
101 #define BNXT_RE_FLAG_QOS_WORK_REG 5
102 #define BNXT_RE_FLAG_TASK_IN_PROG 6
103 struct net_device
*netdev
;
104 unsigned int version
, major
, minor
;
105 struct bnxt_en_dev
*en_dev
;
106 struct bnxt_msix_entry msix_entries
[BNXT_RE_MAX_MSIX
];
111 struct delayed_work worker
;
116 /* FP Notification Queue (CQ & SRQ) */
117 struct tasklet_struct nq_task
;
120 struct bnxt_qplib_rcfw rcfw
;
123 struct bnxt_qplib_nq nq
[BNXT_RE_MAX_MSIX
];
125 /* Device Resources */
126 struct bnxt_qplib_dev_attr dev_attr
;
127 struct bnxt_qplib_ctx qplib_ctx
;
128 struct bnxt_qplib_res qplib_res
;
129 struct bnxt_qplib_dpi dpi_privileged
;
132 struct mutex qp_lock
; /* protect qp list */
133 struct list_head qp_list
;
139 /* Max of 2 lossless traffic class supported per port */
142 /* QP for for handling QP1 packets */
144 struct bnxt_re_qp
*qp1_sqp
;
145 struct bnxt_re_ah
*sqp_ah
;
146 struct bnxt_re_sqp_entries sqp_tbl
[1024];
147 atomic_t nq_alloc_cnt
;
150 #define to_bnxt_re_dev(ptr, member) \
151 container_of((ptr), struct bnxt_re_dev, member)
153 #define BNXT_RE_ROCE_V1_PACKET 0
154 #define BNXT_RE_ROCEV2_IPV4_PACKET 2
155 #define BNXT_RE_ROCEV2_IPV6_PACKET 3
157 static inline struct device
*rdev_to_dev(struct bnxt_re_dev
*rdev
)
160 return &rdev
->ibdev
.dev
;