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 structrue */ 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.device_cap_flags & 94 IB_DEVICE_RDMA_NETDEV_OPA); 95 } 96 97 #endif /* _OPA_VNIC_H */ 98