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Add beginning of TCP Segment Offload support.

This commit is contained in:
matt 2005-03-06 00:08:30 +00:00
parent 04c00a86d4
commit 4acc1b7c25
2 changed files with 5 additions and 2 deletions
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3
sys/net/if.h
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@ -1,4 +1,4 @@
/* $NetBSD: if.h,v 1.102 2005/02/28 18:44:45 jonathan Exp $ */
/* $NetBSD: if.h,v 1.103 2005/03/06 00:08:30 matt Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
@ -347,6 +347,7 @@ struct ifnet { /* and the entries */
#define IFCAP_CSUM_UDPv6 0x0010 /* can do IPv6/UDP checksums */
#define IFCAP_CSUM_TCPv4_Rx 0x0020 /* can do IPv4/TCP (Rx only) */
#define IFCAP_CSUM_UDPv4_Rx 0x0040 /* can do IPv4/UDP (Rx only) */
#define IFCAP_TSOv4 0x0080 /* can do TCPv4 segmentation offload */
/*
* Output queues (ifp->if_snd) and internetwork datagram level (pup level 1)

4
sys/sys/mbuf.h
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@ -1,4 +1,4 @@
/* $NetBSD: mbuf.h,v 1.104 2005/02/26 22:25:34 perry Exp $ */
/* $NetBSD: mbuf.h,v 1.105 2005/03/06 00:08:30 matt Exp $ */
/*-
* Copyright (c) 1996, 1997, 1999, 2001 The NetBSD Foundation, Inc.
@ -158,6 +158,7 @@ struct pkthdr {
int len; /* total packet length */
int csum_flags; /* checksum flags */
u_int32_t csum_data; /* checksum data */
u_int segsz; /* segment size */
};
/*
@ -172,6 +173,7 @@ struct pkthdr {
#define M_CSUM_UDPv6 0x00000020 /* IPv6 UDP header/payload */
#define M_CSUM_IPv4 0x00000040 /* IPv4 header */
#define M_CSUM_IPv4_BAD 0x00000080 /* IPv4 header checksum bad */
#define M_CSUM_TSOv4 0x00000100 /* TCPv4 segmentation offload */
/* Checksum-assist quirks: keep separate from jump-table bits. */
#define M_CSUM_NO_PSEUDOHDR 0x80000000 /* Rx csum_data does not include