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Use also SCTP/IPv6 checksum offloading in special cases.

Browse source 
MFC after: 2 weeks
This commit is contained in:
Michael Tuexen 2010-04-03 23:51:41 +00:00
parent 634e9188af
commit c1589eec14
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=206151
1 changed files with 60 additions and 13 deletions
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73
sys/netinet/sctp_output.c
View file

@ -3709,7 +3709,7 @@ sctp_lowlevel_chunk_output(struct sctp_inpcb *inp,
(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_inpcb *inp,
(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 *m, int iphlen, struct sctphdr *sh,
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 *m, int iphlen, struct sctphdr *sh,
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 iphlen, struct sctphdr *sh, uint32_t vtag,
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 iphlen, struct sctphdr *sh, uint32_t vtag,
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 iphlen, struct mbuf *scm, uint32_t vtag,
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 iphlen, struct mbuf *scm, uint32_t vtag,
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);