Current File : //lib/modules/3.10.0-957.21.3.el7.centos.plus.x86_64/source/include/rdma/opa_vnic.h
#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>
/* 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 */
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