cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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opa_vnic.h (2034B)

      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 */
     34struct opa_vnic_rdma_netdev {
     35	struct rdma_netdev rn;  /* keep this first */
     36	/* followed by device private data */
     37	char *dev_priv[];
     38};
     39
     40static 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
     47static 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 */
     55struct opa_vnic_skb_mdata {
     56	u8 vl;
     57	u8 entropy;
     58	u8 flags;
     59	u8 rsvd;
     60} __packed;
     61
     62/* OPA VNIC group statistics */
     63struct 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
     77struct 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
     91static 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 */