| /* |
| * |
| * SNMP MIB entries for the IP subsystem. |
| * |
| * Alan Cox <gw4pts@gw4pts.ampr.org> |
| * |
| * We don't chose to implement SNMP in the kernel (this would |
| * be silly as SNMP is a pain in the backside in places). We do |
| * however need to collect the MIB statistics and export them |
| * out of /proc (eventually) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * $Id: snmp.h,v 1.19 2001/06/14 13:40:46 davem Exp $ |
| * |
| */ |
| |
| #ifndef _SNMP_H |
| #define _SNMP_H |
| |
| #include <linux/cache.h> |
| |
| /* |
| * We use all unsigned longs. Linux will soon be so reliable that even these |
| * will rapidly get too small 8-). Seriously consider the IpInReceives count |
| * on the 20Gb/s + networks people expect in a few years time! |
| */ |
| |
| /* |
| * The rule for padding: |
| * Best is power of two because then the right structure can be found by a simple |
| * shift. The structure should be always cache line aligned. |
| * gcc needs n=alignto(cachelinesize, popcnt(sizeof(bla_mib))) shift/add instructions |
| * to emulate multiply in case it is not power-of-two. Currently n is always <=3 for |
| * all sizes so simple cache line alignment is enough. |
| * |
| * The best solution would be a global CPU local area , especially on 64 and 128byte |
| * cacheline machine it makes a *lot* of sense -AK |
| */ |
| |
| |
| struct ip_mib |
| { |
| unsigned long IpInReceives; |
| unsigned long IpInHdrErrors; |
| unsigned long IpInAddrErrors; |
| unsigned long IpForwDatagrams; |
| unsigned long IpInUnknownProtos; |
| unsigned long IpInDiscards; |
| unsigned long IpInDelivers; |
| unsigned long IpOutRequests; |
| unsigned long IpOutDiscards; |
| unsigned long IpOutNoRoutes; |
| unsigned long IpReasmTimeout; |
| unsigned long IpReasmReqds; |
| unsigned long IpReasmOKs; |
| unsigned long IpReasmFails; |
| unsigned long IpFragOKs; |
| unsigned long IpFragFails; |
| unsigned long IpFragCreates; |
| unsigned long __pad[0]; |
| } ____cacheline_aligned; |
| |
| struct ipv6_mib |
| { |
| unsigned long Ip6InReceives; |
| unsigned long Ip6InHdrErrors; |
| unsigned long Ip6InTooBigErrors; |
| unsigned long Ip6InNoRoutes; |
| unsigned long Ip6InAddrErrors; |
| unsigned long Ip6InUnknownProtos; |
| unsigned long Ip6InTruncatedPkts; |
| unsigned long Ip6InDiscards; |
| unsigned long Ip6InDelivers; |
| unsigned long Ip6OutForwDatagrams; |
| unsigned long Ip6OutRequests; |
| unsigned long Ip6OutDiscards; |
| unsigned long Ip6OutNoRoutes; |
| unsigned long Ip6ReasmTimeout; |
| unsigned long Ip6ReasmReqds; |
| unsigned long Ip6ReasmOKs; |
| unsigned long Ip6ReasmFails; |
| unsigned long Ip6FragOKs; |
| unsigned long Ip6FragFails; |
| unsigned long Ip6FragCreates; |
| unsigned long Ip6InMcastPkts; |
| unsigned long Ip6OutMcastPkts; |
| unsigned long __pad[0]; |
| } ____cacheline_aligned; |
| |
| struct icmp_mib |
| { |
| unsigned long IcmpInMsgs; |
| unsigned long IcmpInErrors; |
| unsigned long IcmpInDestUnreachs; |
| unsigned long IcmpInTimeExcds; |
| unsigned long IcmpInParmProbs; |
| unsigned long IcmpInSrcQuenchs; |
| unsigned long IcmpInRedirects; |
| unsigned long IcmpInEchos; |
| unsigned long IcmpInEchoReps; |
| unsigned long IcmpInTimestamps; |
| unsigned long IcmpInTimestampReps; |
| unsigned long IcmpInAddrMasks; |
| unsigned long IcmpInAddrMaskReps; |
| unsigned long IcmpOutMsgs; |
| unsigned long IcmpOutErrors; |
| unsigned long IcmpOutDestUnreachs; |
| unsigned long IcmpOutTimeExcds; |
| unsigned long IcmpOutParmProbs; |
| unsigned long IcmpOutSrcQuenchs; |
| unsigned long IcmpOutRedirects; |
| unsigned long IcmpOutEchos; |
| unsigned long IcmpOutEchoReps; |
| unsigned long IcmpOutTimestamps; |
| unsigned long IcmpOutTimestampReps; |
| unsigned long IcmpOutAddrMasks; |
| unsigned long IcmpOutAddrMaskReps; |
| unsigned long dummy; |
| unsigned long __pad[0]; |
| } ____cacheline_aligned; |
| |
| struct icmpv6_mib |
| { |
| unsigned long Icmp6InMsgs; |
| unsigned long Icmp6InErrors; |
| |
| unsigned long Icmp6InDestUnreachs; |
| unsigned long Icmp6InPktTooBigs; |
| unsigned long Icmp6InTimeExcds; |
| unsigned long Icmp6InParmProblems; |
| |
| unsigned long Icmp6InEchos; |
| unsigned long Icmp6InEchoReplies; |
| unsigned long Icmp6InGroupMembQueries; |
| unsigned long Icmp6InGroupMembResponses; |
| unsigned long Icmp6InGroupMembReductions; |
| unsigned long Icmp6InRouterSolicits; |
| unsigned long Icmp6InRouterAdvertisements; |
| unsigned long Icmp6InNeighborSolicits; |
| unsigned long Icmp6InNeighborAdvertisements; |
| unsigned long Icmp6InRedirects; |
| |
| unsigned long Icmp6OutMsgs; |
| |
| unsigned long Icmp6OutDestUnreachs; |
| unsigned long Icmp6OutPktTooBigs; |
| unsigned long Icmp6OutTimeExcds; |
| unsigned long Icmp6OutParmProblems; |
| |
| unsigned long Icmp6OutEchoReplies; |
| unsigned long Icmp6OutRouterSolicits; |
| unsigned long Icmp6OutNeighborSolicits; |
| unsigned long Icmp6OutNeighborAdvertisements; |
| unsigned long Icmp6OutRedirects; |
| unsigned long Icmp6OutGroupMembResponses; |
| unsigned long Icmp6OutGroupMembReductions; |
| unsigned long __pad[0]; |
| } ____cacheline_aligned; |
| |
| struct tcp_mib |
| { |
| unsigned long TcpRtoAlgorithm; |
| unsigned long TcpRtoMin; |
| unsigned long TcpRtoMax; |
| unsigned long TcpMaxConn; |
| unsigned long TcpActiveOpens; |
| unsigned long TcpPassiveOpens; |
| unsigned long TcpAttemptFails; |
| unsigned long TcpEstabResets; |
| unsigned long TcpCurrEstab; |
| unsigned long TcpInSegs; |
| unsigned long TcpOutSegs; |
| unsigned long TcpRetransSegs; |
| unsigned long TcpInErrs; |
| unsigned long TcpOutRsts; |
| unsigned long __pad[0]; |
| } ____cacheline_aligned; |
| |
| struct udp_mib |
| { |
| unsigned long UdpInDatagrams; |
| unsigned long UdpNoPorts; |
| unsigned long UdpInErrors; |
| unsigned long UdpOutDatagrams; |
| unsigned long __pad[0]; |
| } ____cacheline_aligned; |
| |
| struct linux_mib |
| { |
| unsigned long SyncookiesSent; |
| unsigned long SyncookiesRecv; |
| unsigned long SyncookiesFailed; |
| unsigned long EmbryonicRsts; |
| unsigned long PruneCalled; |
| unsigned long RcvPruned; |
| unsigned long OfoPruned; |
| unsigned long OutOfWindowIcmps; |
| unsigned long LockDroppedIcmps; |
| unsigned long ArpFilter; |
| unsigned long TimeWaited; |
| unsigned long TimeWaitRecycled; |
| unsigned long TimeWaitKilled; |
| unsigned long PAWSPassiveRejected; |
| unsigned long PAWSActiveRejected; |
| unsigned long PAWSEstabRejected; |
| unsigned long DelayedACKs; |
| unsigned long DelayedACKLocked; |
| unsigned long DelayedACKLost; |
| unsigned long ListenOverflows; |
| unsigned long ListenDrops; |
| unsigned long TCPPrequeued; |
| unsigned long TCPDirectCopyFromBacklog; |
| unsigned long TCPDirectCopyFromPrequeue; |
| unsigned long TCPPrequeueDropped; |
| unsigned long TCPHPHits; |
| unsigned long TCPHPHitsToUser; |
| unsigned long TCPPureAcks; |
| unsigned long TCPHPAcks; |
| unsigned long TCPRenoRecovery; |
| unsigned long TCPSackRecovery; |
| unsigned long TCPSACKReneging; |
| unsigned long TCPFACKReorder; |
| unsigned long TCPSACKReorder; |
| unsigned long TCPRenoReorder; |
| unsigned long TCPTSReorder; |
| unsigned long TCPFullUndo; |
| unsigned long TCPPartialUndo; |
| unsigned long TCPDSACKUndo; |
| unsigned long TCPLossUndo; |
| unsigned long TCPLoss; |
| unsigned long TCPLostRetransmit; |
| unsigned long TCPRenoFailures; |
| unsigned long TCPSackFailures; |
| unsigned long TCPLossFailures; |
| unsigned long TCPFastRetrans; |
| unsigned long TCPForwardRetrans; |
| unsigned long TCPSlowStartRetrans; |
| unsigned long TCPTimeouts; |
| unsigned long TCPRenoRecoveryFail; |
| unsigned long TCPSackRecoveryFail; |
| unsigned long TCPSchedulerFailed; |
| unsigned long TCPRcvCollapsed; |
| unsigned long TCPDSACKOldSent; |
| unsigned long TCPDSACKOfoSent; |
| unsigned long TCPDSACKRecv; |
| unsigned long TCPDSACKOfoRecv; |
| unsigned long TCPAbortOnSyn; |
| unsigned long TCPAbortOnData; |
| unsigned long TCPAbortOnClose; |
| unsigned long TCPAbortOnMemory; |
| unsigned long TCPAbortOnTimeout; |
| unsigned long TCPAbortOnLinger; |
| unsigned long TCPAbortFailed; |
| unsigned long TCPMemoryPressures; |
| unsigned long __pad[0]; |
| } ____cacheline_aligned; |
| |
| |
| /* |
| * FIXME: On x86 and some other CPUs the split into user and softirq parts is not needed because |
| * addl $1,memory is atomic against interrupts (but atomic_inc would be overkill because of the lock |
| * cycles). Wants new nonlocked_atomic_inc() primitives -AK |
| */ |
| #define SNMP_INC_STATS(mib, field) ((mib)[2*smp_processor_id()+!in_softirq()].field++) |
| #define SNMP_INC_STATS_BH(mib, field) ((mib)[2*smp_processor_id()].field++) |
| #define SNMP_INC_STATS_USER(mib, field) ((mib)[2*smp_processor_id()+1].field++) |
| |
| #endif |
