/* * Copyright (c) 2011 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef LRO_EXT_H_ #define LRO_EXT_H_ #ifdef BSD_KERNEL_PRIVATE /* All definitions exported from LRO go into this file */ extern int sw_lro; extern int lrodebug; extern unsigned int coalesc_sz; /* flow return values */ #define TCP_LRO_NAN 0x00 /* No flow exists */ #define TCP_LRO_CONSUMED 0x01 /* LRO consumed the packet */ #define TCP_LRO_EJECT_FLOW 0x02 /* LRO ejected the flow */ #define TCP_LRO_COALESCE 0x03 /* LRO to coalesce the packet */ #define TCP_LRO_COLLISION 0x04 /* Two flows map to the same slot */ void tcp_lro_init(void); /* When doing LRO in IP call this function */ struct mbuf* tcp_lro(struct mbuf *m, unsigned int hlen); /* TCP calls this to start coalescing a flow */ int tcp_start_coalescing(struct ip *, struct tcphdr *, int tlen); /* TCP calls this to stop coalescing a flow */ int tcp_lro_remove_state(struct in_addr, struct in_addr, unsigned short, unsigned short); /* TCP calls this to keep the seq number updated */ void tcp_update_lro_seq(__uint32_t, struct in_addr, struct in_addr, unsigned short, unsigned short); #endif #endif /* LRO_EXT_H_ */