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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [net/] [snmp.h] - Rev 1275
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/* * * 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 1.1.1.1 2004-04-15 02:34:21 phoenix 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 */ /* * RFC 1213: MIB-II * RFC 2011 (updates 1213): SNMPv2-MIB-IP * RFC 2863: Interfaces Group MIB */ 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; /* * RFC 2465: IPv6 MIB: General Group */ 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; /* * RFC 1213: MIB-II ICMP Group * RFC 2011 (updates 1213): SNMPv2 MIB for IP: ICMP group */ 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; /* * RFC 2466: ICMPv6-MIB */ 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; /* * RFC 1213: MIB-II TCP group * RFC 2012 (updates 1213): SNMPv2-MIB-TCP */ 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; /* * RFC 1213: MIB-II UDP group * RFC 2013 (updates 1213): SNMPv2-MIB-UDP */ struct udp_mib { unsigned long UdpInDatagrams; unsigned long UdpNoPorts; unsigned long UdpInErrors; unsigned long UdpOutDatagrams; unsigned long __pad[0]; } ____cacheline_aligned; /* draft-ietf-sigtran-sctp-mib-07.txt */ struct sctp_mib { unsigned long SctpCurrEstab; unsigned long SctpActiveEstabs; unsigned long SctpPassiveEstabs; unsigned long SctpAborteds; unsigned long SctpShutdowns; unsigned long SctpOutOfBlues; unsigned long SctpChecksumErrors; unsigned long SctpOutCtrlChunks; unsigned long SctpOutOrderChunks; unsigned long SctpOutUnorderChunks; unsigned long SctpInCtrlChunks; unsigned long SctpInOrderChunks; unsigned long SctpInUnorderChunks; unsigned long SctpFragUsrMsgs; unsigned long SctpReasmUsrMsgs; unsigned long SctpOutSCTPPacks; unsigned long SctpInSCTPPacks; unsigned long SctpRtoAlgorithm; unsigned long SctpRtoMin; unsigned long SctpRtoMax; unsigned long SctpRtoInitial; unsigned long SctpValCookieLife; unsigned long SctpMaxInitRetr; unsigned long __pad[0]; }; 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++) #define SNMP_ADD_STATS_BH(mib, field, addend) \ ((mib)[2*smp_processor_id()].field += addend) #define SNMP_ADD_STATS_USER(mib, field, addend) \ ((mib)[2*smp_processor_id()+1].field += addend) #endif
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