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openvswitch/lib/packet-dpif.h
Pravin B Shelar 41ccaa249c netdev-dpif: Add metadata to dpif-packet.
Today dpif-netdev has single metadat for given batch, since one
batch belongs to one port, but soon packets fro single tunnel ports
can belong to different ports, so we need to have per packet metadata.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
2014-10-09 14:12:11 -07:00

74 lines
1.8 KiB
C

/*
* Copyright (c) 2014 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PACKET_DPIF_H
#define PACKET_DPIF_H 1
#include "ofpbuf.h"
#ifdef __cplusplus
extern "C" {
#endif
/* A packet received from a netdev and passed to a dpif. */
struct dpif_packet {
struct ofpbuf ofpbuf; /* Packet data. */
#ifndef DPDK_NETDEV
uint32_t dp_hash; /* Packet hash. */
#endif
struct pkt_metadata md;
};
struct dpif_packet *dpif_packet_new_with_headroom(size_t size,
size_t headroom);
struct dpif_packet *dpif_packet_clone_from_ofpbuf(const struct ofpbuf *b);
struct dpif_packet *dpif_packet_clone(struct dpif_packet *p);
static inline void dpif_packet_delete(struct dpif_packet *p)
{
struct ofpbuf *buf = &p->ofpbuf;
ofpbuf_delete(buf);
}
static inline uint32_t dpif_packet_get_dp_hash(struct dpif_packet *p)
{
#ifdef DPDK_NETDEV
return p->ofpbuf.mbuf.pkt.hash.rss;
#else
return p->dp_hash;
#endif
}
static inline void dpif_packet_set_dp_hash(struct dpif_packet *p,
uint32_t hash)
{
#ifdef DPDK_NETDEV
p->ofpbuf.mbuf.pkt.hash.rss = hash;
#else
p->dp_hash = hash;
#endif
}
#ifdef __cplusplus
}
#endif
#endif /* packet-dpif.h */