svn commit: r206151 - head/sys/netinet
Michael Tuexen
tuexen at FreeBSD.org
Sat Apr 3 23:51:42 UTC 2010
Author: tuexen
Date: Sat Apr 3 23:51:41 2010
New Revision: 206151
URL: http://svn.freebsd.org/changeset/base/206151
Log:
Use also SCTP/IPv6 checksum offloading in special cases.
MFC after: 2 weeks
Modified:
head/sys/netinet/sctp_output.c
Modified: head/sys/netinet/sctp_output.c
==============================================================================
--- head/sys/netinet/sctp_output.c Sat Apr 3 22:04:44 2010 (r206150)
+++ head/sys/netinet/sctp_output.c Sat Apr 3 23:51:41 2010 (r206151)
@@ -3709,7 +3709,7 @@ sctp_lowlevel_chunk_output(struct sctp_i
(stcb) &&
(stcb->asoc.loopback_scope))) {
m->m_pkthdr.csum_flags = CSUM_SCTP;
- m->m_pkthdr.csum_data = 0; /* FIXME MT */
+ m->m_pkthdr.csum_data = 0;
SCTP_STAT_INCR(sctps_sendhwcrc);
} else {
SCTP_STAT_INCR(sctps_sendnocrc);
@@ -4021,7 +4021,7 @@ sctp_lowlevel_chunk_output(struct sctp_i
(stcb) &&
(stcb->asoc.loopback_scope))) {
m->m_pkthdr.csum_flags = CSUM_SCTP;
- m->m_pkthdr.csum_data = 0; /* FIXME MT */
+ m->m_pkthdr.csum_data = 0;
SCTP_STAT_INCR(sctps_sendhwcrc);
} else {
SCTP_STAT_INCR(sctps_sendnocrc);
@@ -10542,7 +10542,7 @@ sctp_send_shutdown_complete2(struct mbuf
SCTP_ENABLE_UDP_CSUM(mout);
} else {
mout->m_pkthdr.csum_flags = CSUM_SCTP;
- mout->m_pkthdr.csum_data = 0; /* FIXME MT */
+ mout->m_pkthdr.csum_data = 0;
SCTP_STAT_INCR(sctps_sendhwcrc);
}
SCTP_ATTACH_CHAIN(o_pak, mout, mlen);
@@ -10566,14 +10566,29 @@ sctp_send_shutdown_complete2(struct mbuf
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LAST_PACKET_TRACING)
sctp_packet_log(mout, mlen);
#endif
- comp_cp->sh.checksum = sctp_calculate_cksum(mout, offset_out);
- SCTP_STAT_INCR(sctps_sendswcrc);
SCTP_ATTACH_CHAIN(o_pak, mout, mlen);
if (port) {
- if ((udp->uh_sum = in6_cksum(o_pak, IPPROTO_UDP, sizeof(struct ip6_hdr),
- sizeof(struct sctp_shutdown_complete_msg) + sizeof(struct udphdr))) == 0) {
+ if (!(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) &&
+ (stcb) &&
+ (stcb->asoc.loopback_scope))) {
+ comp_cp->sh.checksum = sctp_calculate_cksum(mout, sizeof(struct ip6_hdr) + sizeof(struct udphdr));
+ SCTP_STAT_INCR(sctps_sendswcrc);
+ } else {
+ SCTP_STAT_INCR(sctps_sendnocrc);
+ }
+ if ((udp->uh_sum = in6_cksum(o_pak, IPPROTO_UDP, sizeof(struct ip6_hdr), mlen - sizeof(struct ip6_hdr))) == 0) {
udp->uh_sum = 0xffff;
}
+ } else {
+ if (!(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) &&
+ (stcb) &&
+ (stcb->asoc.loopback_scope))) {
+ mout->m_pkthdr.csum_flags = CSUM_SCTP;
+ mout->m_pkthdr.csum_data = 0;
+ SCTP_STAT_INCR(sctps_sendhwcrc);
+ } else {
+ SCTP_STAT_INCR(sctps_sendnocrc);
+ }
}
SCTP_IP6_OUTPUT(ret, o_pak, &ro, &ifp, stcb, vrf_id);
@@ -11593,7 +11608,7 @@ sctp_send_abort(struct mbuf *m, int iphl
SCTP_ENABLE_UDP_CSUM(o_pak);
} else {
mout->m_pkthdr.csum_flags = CSUM_SCTP;
- mout->m_pkthdr.csum_data = 0; /* FIXME MT */
+ mout->m_pkthdr.csum_data = 0;
SCTP_STAT_INCR(sctps_sendhwcrc);
}
SCTP_IP_OUTPUT(ret, o_pak, &ro, stcb, vrf_id);
@@ -11621,13 +11636,29 @@ sctp_send_abort(struct mbuf *m, int iphl
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LAST_PACKET_TRACING)
sctp_packet_log(mout, len);
#endif
- abm->sh.checksum = sctp_calculate_cksum(mout, iphlen_out);
- SCTP_STAT_INCR(sctps_sendswcrc);
SCTP_ATTACH_CHAIN(o_pak, mout, len);
if (port) {
+ if (!(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) &&
+ (stcb) &&
+ (stcb->asoc.loopback_scope))) {
+ abm->sh.checksum = sctp_calculate_cksum(mout, sizeof(struct ip6_hdr) + sizeof(struct udphdr));
+ SCTP_STAT_INCR(sctps_sendswcrc);
+ } else {
+ SCTP_STAT_INCR(sctps_sendnocrc);
+ }
if ((udp->uh_sum = in6_cksum(o_pak, IPPROTO_UDP, sizeof(struct ip6_hdr), len - sizeof(struct ip6_hdr))) == 0) {
udp->uh_sum = 0xffff;
}
+ } else {
+ if (!(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) &&
+ (stcb) &&
+ (stcb->asoc.loopback_scope))) {
+ mout->m_pkthdr.csum_flags = CSUM_SCTP;
+ mout->m_pkthdr.csum_data = 0;
+ SCTP_STAT_INCR(sctps_sendhwcrc);
+ } else {
+ SCTP_STAT_INCR(sctps_sendnocrc);
+ }
}
SCTP_IP6_OUTPUT(ret, o_pak, &ro, &ifp, stcb, vrf_id);
@@ -11815,7 +11846,7 @@ sctp_send_operr_to(struct mbuf *m, int i
SCTP_ENABLE_UDP_CSUM(o_pak);
} else {
mout->m_pkthdr.csum_flags = CSUM_SCTP;
- mout->m_pkthdr.csum_data = 0; /* FIXME MT */
+ mout->m_pkthdr.csum_data = 0;
SCTP_STAT_INCR(sctps_sendhwcrc);
}
SCTP_IP_OUTPUT(ret, o_pak, &ro, stcb, vrf_id);
@@ -11841,13 +11872,29 @@ sctp_send_operr_to(struct mbuf *m, int i
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LAST_PACKET_TRACING)
sctp_packet_log(mout, len);
#endif
- sh_out->checksum = sctp_calculate_cksum(mout, iphlen_out);
- SCTP_STAT_INCR(sctps_sendswcrc);
SCTP_ATTACH_CHAIN(o_pak, mout, len);
if (port) {
+ if (!(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) &&
+ (stcb) &&
+ (stcb->asoc.loopback_scope))) {
+ sh_out->checksum = sctp_calculate_cksum(mout, sizeof(struct ip6_hdr) + sizeof(struct udphdr));
+ SCTP_STAT_INCR(sctps_sendswcrc);
+ } else {
+ SCTP_STAT_INCR(sctps_sendnocrc);
+ }
if ((udp->uh_sum = in6_cksum(o_pak, IPPROTO_UDP, sizeof(struct ip6_hdr), len - sizeof(struct ip6_hdr))) == 0) {
udp->uh_sum = 0xffff;
}
+ } else {
+ if (!(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) &&
+ (stcb) &&
+ (stcb->asoc.loopback_scope))) {
+ mout->m_pkthdr.csum_flags = CSUM_SCTP;
+ mout->m_pkthdr.csum_data = 0;
+ SCTP_STAT_INCR(sctps_sendhwcrc);
+ } else {
+ SCTP_STAT_INCR(sctps_sendnocrc);
+ }
}
SCTP_IP6_OUTPUT(ret, o_pak, &ro, &ifp, stcb, vrf_id);
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