#define _SNMP_H
#include <linux/cache.h>
-#include <linux/snmp.h>
-
-/*
- * Mibs are stored in array of unsigned long.
- */
+
/*
- * struct snmp_mib{}
- * - list of entries for particular API (such as /proc/net/snmp)
- * - name of entries.
+ * 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!
*/
-struct snmp_mib {
+
+/*
+ * 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 snmp_item {
char *name;
- int entry;
+ int offset;
};
-#define SNMP_MIB_ITEM(_name,_entry) { \
- .name = _name, \
- .entry = _entry, \
+#define SNMP_ITEM(mib,entry,procname) { \
+ .name = procname, \
+ .offset = offsetof(mib, entry), \
}
-#define SNMP_MIB_SENTINEL { \
- .name = NULL, \
- .entry = 0, \
+#define SNMP_ITEM_SENTINEL { \
+ .name = NULL, \
+ .offset = 0, \
}
/*
- * 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!
+ * RFC 1213: MIB-II
+ * RFC 2011 (updates 1213): SNMPv2-MIB-IP
+ * RFC 2863: Interfaces Group MIB
+ * RFC 2465: IPv6 MIB: General Group
+ * draft-ietf-ipv6-rfc2011-update-10.txt: MIB for IP: IP Statistics Tables
*/
+struct ipstats_mib
+{
+ unsigned long InReceives;
+ unsigned long InHdrErrors;
+ unsigned long InTooBigErrors;
+ unsigned long InNoRoutes;
+ unsigned long InAddrErrors;
+ unsigned long InUnknownProtos;
+ unsigned long InTruncatedPkts;
+ unsigned long InDiscards;
+ unsigned long InDelivers;
+ unsigned long OutForwDatagrams;
+ unsigned long OutRequests;
+ unsigned long OutDiscards;
+ unsigned long OutNoRoutes;
+ unsigned long ReasmTimeout;
+ unsigned long ReasmReqds;
+ unsigned long ReasmOKs;
+ unsigned long ReasmFails;
+ unsigned long FragOKs;
+ unsigned long FragFails;
+ unsigned long FragCreates;
+ unsigned long InMcastPkts;
+ unsigned long OutMcastPkts;
+ unsigned long __pad[0];
+};
+
+/*
+ * 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];
+};
-/*
- * 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 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];
+};
+
+/*
+ * 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];
+};
+
+/*
+ * 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];
+};
+
+/* 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];
+};
-#define __SNMP_MIB_ALIGN__ ____cacheline_aligned
-
-/* IPstats */
-#define IPSTATS_MIB_MAX __IPSTATS_MIB_MAX
-struct ipstats_mib {
- unsigned long mibs[IPSTATS_MIB_MAX];
-} __SNMP_MIB_ALIGN__;
-
-/* ICMP */
-#define ICMP_MIB_DUMMY __ICMP_MIB_MAX
-#define ICMP_MIB_MAX (__ICMP_MIB_MAX + 1)
-
-struct icmp_mib {
- unsigned long mibs[ICMP_MIB_MAX];
-} __SNMP_MIB_ALIGN__;
-
-/* ICMP6 (IPv6-ICMP) */
-#define ICMP6_MIB_MAX __ICMP6_MIB_MAX
-struct icmpv6_mib {
- unsigned long mibs[ICMP6_MIB_MAX];
-} __SNMP_MIB_ALIGN__;
-
-/* TCP */
-#define TCP_MIB_MAX __TCP_MIB_MAX
-struct tcp_mib {
- unsigned long mibs[TCP_MIB_MAX];
-} __SNMP_MIB_ALIGN__;
-
-/* UDP */
-#define UDP_MIB_MAX __UDP_MIB_MAX
-struct udp_mib {
- unsigned long mibs[UDP_MIB_MAX];
-} __SNMP_MIB_ALIGN__;
-
-/* SCTP */
-#define SCTP_MIB_MAX __SCTP_MIB_MAX
-struct sctp_mib {
- unsigned long mibs[SCTP_MIB_MAX];
-} __SNMP_MIB_ALIGN__;
-
-/* Linux */
-#define LINUX_MIB_MAX __LINUX_MIB_MAX
-struct linux_mib {
- unsigned long mibs[LINUX_MIB_MAX];
+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];
};
/*
- * 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
+ * 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 DEFINE_SNMP_STAT(type, name) \
__typeof__(type) *name[2]
#define SNMP_STAT_USRPTR(name) (name[1])
#define SNMP_INC_STATS_BH(mib, field) \
- (per_cpu_ptr(mib[0], smp_processor_id())->mibs[field]++)
+ (per_cpu_ptr(mib[0], smp_processor_id())->field++)
#define SNMP_INC_STATS_OFFSET_BH(mib, field, offset) \
- (per_cpu_ptr(mib[0], smp_processor_id())->mibs[field + (offset)]++)
+ ((*((&per_cpu_ptr(mib[0], smp_processor_id())->field) + (offset)))++)
#define SNMP_INC_STATS_USER(mib, field) \
- (per_cpu_ptr(mib[1], smp_processor_id())->mibs[field]++)
+ (per_cpu_ptr(mib[1], smp_processor_id())->field++)
#define SNMP_INC_STATS(mib, field) \
- (per_cpu_ptr(mib[!in_softirq()], smp_processor_id())->mibs[field]++)
+ (per_cpu_ptr(mib[!in_softirq()], smp_processor_id())->field++)
#define SNMP_DEC_STATS(mib, field) \
- (per_cpu_ptr(mib[!in_softirq()], smp_processor_id())->mibs[field]--)
+ (per_cpu_ptr(mib[!in_softirq()], smp_processor_id())->field--)
#define SNMP_ADD_STATS_BH(mib, field, addend) \
- (per_cpu_ptr(mib[0], smp_processor_id())->mibs[field] += addend)
+ (per_cpu_ptr(mib[0], smp_processor_id())->field += addend)
#define SNMP_ADD_STATS_USER(mib, field, addend) \
- (per_cpu_ptr(mib[1], smp_processor_id())->mibs[field] += addend)
-
+ (per_cpu_ptr(mib[1], smp_processor_id())->field += addend)
+
#endif
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