1 | /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ |
2 | /* |
3 | * Copyright(c) 2017 - 2020 Intel Corporation. |
4 | */ |
5 | |
6 | #ifndef _OPA_VNIC_H |
7 | #define _OPA_VNIC_H |
8 | |
9 | /* |
10 | * This file contains Intel Omni-Path (OPA) Virtual Network Interface |
11 | * Controller (VNIC) specific declarations. |
12 | */ |
13 | |
14 | #include <rdma/ib_verbs.h> |
15 | |
16 | /* 16 header bytes + 2 reserved bytes */ |
17 | #define OPA_VNIC_L2_HDR_LEN (16 + 2) |
18 | |
19 | #define OPA_VNIC_L4_HDR_LEN 2 |
20 | |
21 | #define OPA_VNIC_HDR_LEN (OPA_VNIC_L2_HDR_LEN + \ |
22 | OPA_VNIC_L4_HDR_LEN) |
23 | |
24 | #define OPA_VNIC_L4_ETHR 0x78 |
25 | |
26 | #define OPA_VNIC_ICRC_LEN 4 |
27 | #define OPA_VNIC_TAIL_LEN 1 |
28 | #define OPA_VNIC_ICRC_TAIL_LEN (OPA_VNIC_ICRC_LEN + OPA_VNIC_TAIL_LEN) |
29 | |
30 | #define OPA_VNIC_SKB_MDATA_LEN 4 |
31 | #define OPA_VNIC_SKB_MDATA_ENCAP_ERR 0x1 |
32 | |
33 | /* opa vnic rdma netdev's private data structure */ |
34 | struct opa_vnic_rdma_netdev { |
35 | struct rdma_netdev rn; /* keep this first */ |
36 | /* followed by device private data */ |
37 | char *dev_priv[]; |
38 | }; |
39 | |
40 | static inline void *opa_vnic_priv(const struct net_device *dev) |
41 | { |
42 | struct rdma_netdev *rn = netdev_priv(dev); |
43 | |
44 | return rn->clnt_priv; |
45 | } |
46 | |
47 | static inline void *opa_vnic_dev_priv(const struct net_device *dev) |
48 | { |
49 | struct opa_vnic_rdma_netdev *oparn = netdev_priv(dev); |
50 | |
51 | return oparn->dev_priv; |
52 | } |
53 | |
54 | /* opa_vnic skb meta data structure */ |
55 | struct opa_vnic_skb_mdata { |
56 | u8 vl; |
57 | u8 entropy; |
58 | u8 flags; |
59 | u8 rsvd; |
60 | } __packed; |
61 | |
62 | /* OPA VNIC group statistics */ |
63 | struct opa_vnic_grp_stats { |
64 | u64 unicast; |
65 | u64 mcastbcast; |
66 | u64 untagged; |
67 | u64 vlan; |
68 | u64 s_64; |
69 | u64 s_65_127; |
70 | u64 s_128_255; |
71 | u64 s_256_511; |
72 | u64 s_512_1023; |
73 | u64 s_1024_1518; |
74 | u64 s_1519_max; |
75 | }; |
76 | |
77 | struct opa_vnic_stats { |
78 | /* standard netdev statistics */ |
79 | struct rtnl_link_stats64 netstats; |
80 | |
81 | /* OPA VNIC statistics */ |
82 | struct opa_vnic_grp_stats tx_grp; |
83 | struct opa_vnic_grp_stats rx_grp; |
84 | u64 tx_dlid_zero; |
85 | u64 tx_drop_state; |
86 | u64 rx_drop_state; |
87 | u64 rx_runt; |
88 | u64 rx_oversize; |
89 | }; |
90 | |
91 | static inline bool rdma_cap_opa_vnic(struct ib_device *device) |
92 | { |
93 | return !!(device->attrs.kernel_cap_flags & IBK_RDMA_NETDEV_OPA); |
94 | } |
95 | |
96 | #endif /* _OPA_VNIC_H */ |
97 | |