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Differential D3687 Diff 21245 sys/netinet/ip_output.c

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sys/netinet/ip_output.c

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* *
* @(#)ip_output.c 8.3 (Berkeley) 1/21/94 * @(#)ip_output.c 8.3 (Berkeley) 1/21/94
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__FBSDID("$FreeBSD$"); __FBSDID("$FreeBSD$");
#include "opt_inet.h" #include "opt_inet.h"
#include "opt_ratelimit.h"
#include "opt_ipsec.h" #include "opt_ipsec.h"
#include "opt_mbuf_stress_test.h" #include "opt_mbuf_stress_test.h"
#include "opt_mpath.h" #include "opt_mpath.h"
#include "opt_route.h" #include "opt_route.h"
#include "opt_sctp.h" #include "opt_sctp.h"
#include "opt_rss.h" #include "opt_rss.h"
#include <sys/param.h> #include <sys/param.h>
▲ Show 20 Lines • Show All 598 Lines • ▼ Show 20 Lines if (ip_len <= mtu ||
if (!(flags & IP_FORWARDING) && ia) { if (!(flags & IP_FORWARDING) && ia) {
if (m->m_pkthdr.csum_flags & CSUM_TSO) if (m->m_pkthdr.csum_flags & CSUM_TSO)
counter_u64_add(ia->ia_ifa.ifa_opackets, counter_u64_add(ia->ia_ifa.ifa_opackets,
m->m_pkthdr.len / m->m_pkthdr.tso_segsz); m->m_pkthdr.len / m->m_pkthdr.tso_segsz);
else else
counter_u64_add(ia->ia_ifa.ifa_opackets, 1); counter_u64_add(ia->ia_ifa.ifa_opackets, 1);
counter_u64_add(ia->ia_ifa.ifa_obytes, m->m_pkthdr.len); counter_u64_add(ia->ia_ifa.ifa_obytes, m->m_pkthdr.len);
} }
jtlUnsubmitted
Done
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I'm not convinced this is a good idea. Imagine you have a flow that is flopping between cards. One card runs into a problem and won't allocate a ring ID. But, the flow then gets moved to a different card, which would allocate a ring ID... except, you don't ask because you just changed the pacing rate to 0.

jtl: I'm not convinced this is a good idea. Imagine you have a flow that is flopping between cards.
hselaskyUnsubmitted
Done
Inline Actions

Will be fixed. Please wait for updated patch.

hselasky: Will be fixed. Please wait for updated patch.
#ifdef MBUF_STRESS_TEST #ifdef MBUF_STRESS_TEST
if (mbuf_frag_size && m->m_pkthdr.len > mbuf_frag_size) if (mbuf_frag_size && m->m_pkthdr.len > mbuf_frag_size)
m = m_fragment(m, M_NOWAIT, mbuf_frag_size); m = m_fragment(m, M_NOWAIT, mbuf_frag_size);
#endif #endif
/* /*
* Reset layer specific mbuf flags * Reset layer specific mbuf flags
* to avoid confusing lower layers. * to avoid confusing lower layers.
*/ */
m_clrprotoflags(m); m_clrprotoflags(m);
IP_PROBE(send, NULL, NULL, ip, ifp, ip, NULL); IP_PROBE(send, NULL, NULL, ip, ifp, ip, NULL);
#ifdef RATELIMIT
if (ifp->if_capabilities & IFCAP_TXRTLMT)
in_pcboutput_txrtlmt(inp, ifp, m);
#endif
error = (*ifp->if_output)(ifp, m, error = (*ifp->if_output)(ifp, m,
(const struct sockaddr *)gw, ro); (const struct sockaddr *)gw, ro);
goto done; goto done;
} }
/* Balk when DF bit is set or the interface didn't support TSO. */ /* Balk when DF bit is set or the interface didn't support TSO. */
if ((ip_off & IP_DF) || (m->m_pkthdr.csum_flags & CSUM_TSO)) { if ((ip_off & IP_DF) || (m->m_pkthdr.csum_flags & CSUM_TSO)) {
error = EMSGSIZE; error = EMSGSIZE;
Show All 20 Lines if (error == 0) {
} }
/* /*
* Reset layer specific mbuf flags * Reset layer specific mbuf flags
* to avoid confusing upper layers. * to avoid confusing upper layers.
*/ */
m_clrprotoflags(m); m_clrprotoflags(m);
IP_PROBE(send, NULL, NULL, ip, ifp, ip, NULL); IP_PROBE(send, NULL, NULL, ip, ifp, ip, NULL);
#ifdef RATELIMIT
if (ifp->if_capabilities & IFCAP_TXRTLMT)
in_pcboutput_txrtlmt(inp, ifp, m);
#endif
error = (*ifp->if_output)(ifp, m, error = (*ifp->if_output)(ifp, m,
(const struct sockaddr *)gw, ro); (const struct sockaddr *)gw, ro);
} else } else
m_freem(m); m_freem(m);
} }
if (error == 0) if (error == 0)
IPSTAT_INC(ips_fragmented); IPSTAT_INC(ips_fragmented);
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