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/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
* Copyright(c) 2017 - 2020 Intel Corporation.
*/
#ifndef _OPA_VNIC_H
#define _OPA_VNIC_H
/*
* This file contains Intel Omni-Path (OPA) Virtual Network Interface
* Controller (VNIC) specific declarations.
*/
#include <rdma/ib_verbs.h>
/* 16 header bytes + 2 reserved bytes */
#define OPA_VNIC_L2_HDR_LEN (16 + 2)
#define OPA_VNIC_L4_HDR_LEN 2
#define OPA_VNIC_HDR_LEN (OPA_VNIC_L2_HDR_LEN + \
OPA_VNIC_L4_HDR_LEN)
#define OPA_VNIC_L4_ETHR 0x78
#define OPA_VNIC_ICRC_LEN 4
#define OPA_VNIC_TAIL_LEN 1
#define OPA_VNIC_ICRC_TAIL_LEN (OPA_VNIC_ICRC_LEN + OPA_VNIC_TAIL_LEN)
#define OPA_VNIC_SKB_MDATA_LEN 4
#define OPA_VNIC_SKB_MDATA_ENCAP_ERR 0x1
/* opa vnic rdma netdev's private data structure */
struct opa_vnic_rdma_netdev {
struct rdma_netdev rn; /* keep this first */
/* followed by device private data */
char *dev_priv[];
};
static inline void *opa_vnic_priv(const struct net_device *dev)
{
struct rdma_netdev *rn = netdev_priv(dev);
return rn->clnt_priv;
}
static inline void *opa_vnic_dev_priv(const struct net_device *dev)
{
struct opa_vnic_rdma_netdev *oparn = netdev_priv(dev);
return oparn->dev_priv;
}
/* opa_vnic skb meta data structrue */
struct opa_vnic_skb_mdata {
u8 vl;
u8 entropy;
u8 flags;
u8 rsvd;
} __packed;
/* OPA VNIC group statistics */
struct opa_vnic_grp_stats {
u64 unicast;
u64 mcastbcast;
u64 untagged;
u64 vlan;
u64 s_64;
u64 s_65_127;
u64 s_128_255;
u64 s_256_511;
u64 s_512_1023;
u64 s_1024_1518;
u64 s_1519_max;
};
struct opa_vnic_stats {
/* standard netdev statistics */
struct rtnl_link_stats64 netstats;
/* OPA VNIC statistics */
struct opa_vnic_grp_stats tx_grp;
struct opa_vnic_grp_stats rx_grp;
u64 tx_dlid_zero;
u64 tx_drop_state;
u64 rx_drop_state;
u64 rx_runt;
u64 rx_oversize;
};
static inline bool rdma_cap_opa_vnic(struct ib_device *device)
{
return !!(device->attrs.kernel_cap_flags & IBK_RDMA_NETDEV_OPA);
}
#endif /* _OPA_VNIC_H */
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