1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-C <<
2 /* <<
3 * Copyright(c) 2017 - 2020 Intel Corporation. <<
4 */ <<
5 <<
6 #ifndef _OPA_VNIC_H 1 #ifndef _OPA_VNIC_H
7 #define _OPA_VNIC_H 2 #define _OPA_VNIC_H
>> 3 /*
>> 4 * Copyright(c) 2017 Intel Corporation.
>> 5 *
>> 6 * This file is provided under a dual BSD/GPLv2 license. When using or
>> 7 * redistributing this file, you may do so under either license.
>> 8 *
>> 9 * GPL LICENSE SUMMARY
>> 10 *
>> 11 * This program is free software; you can redistribute it and/or modify
>> 12 * it under the terms of version 2 of the GNU General Public License as
>> 13 * published by the Free Software Foundation.
>> 14 *
>> 15 * This program is distributed in the hope that it will be useful, but
>> 16 * WITHOUT ANY WARRANTY; without even the implied warranty of
>> 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
>> 18 * General Public License for more details.
>> 19 *
>> 20 * BSD LICENSE
>> 21 *
>> 22 * Redistribution and use in source and binary forms, with or without
>> 23 * modification, are permitted provided that the following conditions
>> 24 * are met:
>> 25 *
>> 26 * - Redistributions of source code must retain the above copyright
>> 27 * notice, this list of conditions and the following disclaimer.
>> 28 * - Redistributions in binary form must reproduce the above copyright
>> 29 * notice, this list of conditions and the following disclaimer in
>> 30 * the documentation and/or other materials provided with the
>> 31 * distribution.
>> 32 * - Neither the name of Intel Corporation nor the names of its
>> 33 * contributors may be used to endorse or promote products derived
>> 34 * from this software without specific prior written permission.
>> 35 *
>> 36 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>> 37 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>> 38 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>> 39 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>> 40 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>> 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>> 42 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
>> 43 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
>> 44 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>> 45 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>> 46 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>> 47 *
>> 48 */
8 49
9 /* 50 /*
10 * This file contains Intel Omni-Path (OPA) Vi 51 * This file contains Intel Omni-Path (OPA) Virtual Network Interface
11 * Controller (VNIC) specific declarations. 52 * Controller (VNIC) specific declarations.
12 */ 53 */
13 54
14 #include <rdma/ib_verbs.h> 55 #include <rdma/ib_verbs.h>
15 56
>> 57 /* VNIC uses 16B header format */
>> 58 #define OPA_VNIC_L2_TYPE 0x2
>> 59
16 /* 16 header bytes + 2 reserved bytes */ 60 /* 16 header bytes + 2 reserved bytes */
17 #define OPA_VNIC_L2_HDR_LEN (16 + 2) 61 #define OPA_VNIC_L2_HDR_LEN (16 + 2)
18 62
19 #define OPA_VNIC_L4_HDR_LEN 2 63 #define OPA_VNIC_L4_HDR_LEN 2
20 64
21 #define OPA_VNIC_HDR_LEN (OPA_VNIC_L2_HDR 65 #define OPA_VNIC_HDR_LEN (OPA_VNIC_L2_HDR_LEN + \
22 OPA_VNIC_L4_HDR 66 OPA_VNIC_L4_HDR_LEN)
23 67
24 #define OPA_VNIC_L4_ETHR 0x78 68 #define OPA_VNIC_L4_ETHR 0x78
25 69
26 #define OPA_VNIC_ICRC_LEN 4 70 #define OPA_VNIC_ICRC_LEN 4
27 #define OPA_VNIC_TAIL_LEN 1 71 #define OPA_VNIC_TAIL_LEN 1
28 #define OPA_VNIC_ICRC_TAIL_LEN (OPA_VNIC_ICRC 72 #define OPA_VNIC_ICRC_TAIL_LEN (OPA_VNIC_ICRC_LEN + OPA_VNIC_TAIL_LEN)
29 73
30 #define OPA_VNIC_SKB_MDATA_LEN 4 74 #define OPA_VNIC_SKB_MDATA_LEN 4
31 #define OPA_VNIC_SKB_MDATA_ENCAP_ERR 0x1 75 #define OPA_VNIC_SKB_MDATA_ENCAP_ERR 0x1
32 76
33 /* opa vnic rdma netdev's private data structu 77 /* opa vnic rdma netdev's private data structure */
34 struct opa_vnic_rdma_netdev { 78 struct opa_vnic_rdma_netdev {
35 struct rdma_netdev rn; /* keep this f 79 struct rdma_netdev rn; /* keep this first */
36 /* followed by device private data */ 80 /* followed by device private data */
37 char *dev_priv[]; !! 81 char *dev_priv[0];
38 }; 82 };
39 83
40 static inline void *opa_vnic_priv(const struct 84 static inline void *opa_vnic_priv(const struct net_device *dev)
41 { 85 {
42 struct rdma_netdev *rn = netdev_priv(d 86 struct rdma_netdev *rn = netdev_priv(dev);
43 87
44 return rn->clnt_priv; 88 return rn->clnt_priv;
45 } 89 }
46 90
47 static inline void *opa_vnic_dev_priv(const st 91 static inline void *opa_vnic_dev_priv(const struct net_device *dev)
48 { 92 {
49 struct opa_vnic_rdma_netdev *oparn = n 93 struct opa_vnic_rdma_netdev *oparn = netdev_priv(dev);
50 94
51 return oparn->dev_priv; 95 return oparn->dev_priv;
52 } 96 }
53 97
54 /* opa_vnic skb meta data structure */ !! 98 /* opa_vnic skb meta data structrue */
55 struct opa_vnic_skb_mdata { 99 struct opa_vnic_skb_mdata {
56 u8 vl; 100 u8 vl;
57 u8 entropy; 101 u8 entropy;
58 u8 flags; 102 u8 flags;
59 u8 rsvd; 103 u8 rsvd;
60 } __packed; 104 } __packed;
61 105
62 /* OPA VNIC group statistics */ 106 /* OPA VNIC group statistics */
63 struct opa_vnic_grp_stats { 107 struct opa_vnic_grp_stats {
64 u64 unicast; 108 u64 unicast;
65 u64 mcastbcast; 109 u64 mcastbcast;
66 u64 untagged; 110 u64 untagged;
67 u64 vlan; 111 u64 vlan;
68 u64 s_64; 112 u64 s_64;
69 u64 s_65_127; 113 u64 s_65_127;
70 u64 s_128_255; 114 u64 s_128_255;
71 u64 s_256_511; 115 u64 s_256_511;
72 u64 s_512_1023; 116 u64 s_512_1023;
73 u64 s_1024_1518; 117 u64 s_1024_1518;
74 u64 s_1519_max; 118 u64 s_1519_max;
75 }; 119 };
76 120
77 struct opa_vnic_stats { 121 struct opa_vnic_stats {
78 /* standard netdev statistics */ 122 /* standard netdev statistics */
79 struct rtnl_link_stats64 netstats; 123 struct rtnl_link_stats64 netstats;
80 124
81 /* OPA VNIC statistics */ 125 /* OPA VNIC statistics */
82 struct opa_vnic_grp_stats tx_grp; 126 struct opa_vnic_grp_stats tx_grp;
83 struct opa_vnic_grp_stats rx_grp; 127 struct opa_vnic_grp_stats rx_grp;
84 u64 tx_dlid_zero; 128 u64 tx_dlid_zero;
85 u64 tx_drop_state; 129 u64 tx_drop_state;
86 u64 rx_drop_state; 130 u64 rx_drop_state;
87 u64 rx_runt; 131 u64 rx_runt;
88 u64 rx_oversize; 132 u64 rx_oversize;
89 }; 133 };
90 134
91 static inline bool rdma_cap_opa_vnic(struct ib 135 static inline bool rdma_cap_opa_vnic(struct ib_device *device)
92 { 136 {
93 return !!(device->attrs.kernel_cap_fla !! 137 return !!(device->attrs.device_cap_flags &
>> 138 IB_DEVICE_RDMA_NETDEV_OPA_VNIC);
94 } 139 }
95 140
96 #endif /* _OPA_VNIC_H */ 141 #endif /* _OPA_VNIC_H */
97 142
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