IB/opa-vnic: Virtual Network Interface Controller (VNIC) interface

	IB_DEVICE_VIRTUAL_FUNCTION		= (1ULL << 33),

	/* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */

	IB_DEVICE_RAW_SCATTER_FCS		= (1ULL << 34),

	IB_DEVICE_RDMA_NETDEV_OPA_VNIC		= (1ULL << 35),

};

enum ib_signature_prot_cap {

#ifndef _OPA_VNIC_H

#define _OPA_VNIC_H

/*

 * Copyright(c) 2017 Intel Corporation.

 *

 * This file is provided under a dual BSD/GPLv2 license.  When using or

 * redistributing this file, you may do so under either license.

 *

 * GPL LICENSE SUMMARY

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License as

 * published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * BSD LICENSE

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *  - Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 *  - Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in

 *    the documentation and/or other materials provided with the

 *    distribution.

 *  - Neither the name of Intel Corporation nor the names of its

 *    contributors may be used to endorse or promote products derived

 *    from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 */

/*

 * This file contains Intel Omni-Path (OPA) Virtual Network Interface

 * Controller (VNIC) specific declarations.

 */

#include <rdma/ib_verbs.h>

/* VNIC uses 16B header format */

#define OPA_VNIC_L2_TYPE    0x2

/* 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[0];

};

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.device_cap_flags &

		  IB_DEVICE_RDMA_NETDEV_OPA_VNIC);

}

#endif /* _OPA_VNIC_H */