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19#ifndef _SNMP_H
20#define _SNMP_H
21
22#include <linux/cache.h>
23#include <linux/snmp.h>
24#include <linux/smp.h>
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33
34struct snmp_mib {
35 char *name;
36 int entry;
37};
38
39#define SNMP_MIB_ITEM(_name,_entry) { \
40 .name = _name, \
41 .entry = _entry, \
42}
43
44#define SNMP_MIB_SENTINEL { \
45 .name = NULL, \
46 .entry = 0, \
47}
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67
68#define __SNMP_MIB_ALIGN__ ____cacheline_aligned
69
70
71#define IPSTATS_MIB_MAX __IPSTATS_MIB_MAX
72struct ipstats_mib {
73 unsigned long mibs[IPSTATS_MIB_MAX];
74} __SNMP_MIB_ALIGN__;
75
76
77#define ICMP_MIB_DUMMY __ICMP_MIB_MAX
78#define ICMP_MIB_MAX (__ICMP_MIB_MAX + 1)
79
80struct icmp_mib {
81 unsigned long mibs[ICMP_MIB_MAX];
82} __SNMP_MIB_ALIGN__;
83
84#define ICMPMSG_MIB_MAX __ICMPMSG_MIB_MAX
85struct icmpmsg_mib {
86 unsigned long mibs[ICMPMSG_MIB_MAX];
87} __SNMP_MIB_ALIGN__;
88
89
90#define ICMP6_MIB_MAX __ICMP6_MIB_MAX
91struct icmpv6_mib {
92 unsigned long mibs[ICMP6_MIB_MAX];
93} __SNMP_MIB_ALIGN__;
94
95#define ICMP6MSG_MIB_MAX __ICMP6MSG_MIB_MAX
96struct icmpv6msg_mib {
97 unsigned long mibs[ICMP6MSG_MIB_MAX];
98} __SNMP_MIB_ALIGN__;
99
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101
102#define TCP_MIB_MAX __TCP_MIB_MAX
103struct tcp_mib {
104 unsigned long mibs[TCP_MIB_MAX];
105} __SNMP_MIB_ALIGN__;
106
107
108#define UDP_MIB_MAX __UDP_MIB_MAX
109struct udp_mib {
110 unsigned long mibs[UDP_MIB_MAX];
111} __SNMP_MIB_ALIGN__;
112
113
114#define LINUX_MIB_MAX __LINUX_MIB_MAX
115struct linux_mib {
116 unsigned long mibs[LINUX_MIB_MAX];
117};
118
119
120#define LINUX_MIB_XFRMMAX __LINUX_MIB_XFRMMAX
121struct linux_xfrm_mib {
122 unsigned long mibs[LINUX_MIB_XFRMMAX];
123};
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130
131#define DEFINE_SNMP_STAT(type, name) \
132 __typeof__(type) *name[2]
133#define DECLARE_SNMP_STAT(type, name) \
134 extern __typeof__(type) *name[2]
135
136#define SNMP_STAT_BHPTR(name) (name[0])
137#define SNMP_STAT_USRPTR(name) (name[1])
138
139#define SNMP_INC_STATS_BH(mib, field) \
140 (per_cpu_ptr(mib[0], raw_smp_processor_id())->mibs[field]++)
141#define SNMP_INC_STATS_USER(mib, field) \
142 do { \
143 per_cpu_ptr(mib[1], get_cpu())->mibs[field]++; \
144 put_cpu(); \
145 } while (0)
146#define SNMP_INC_STATS(mib, field) \
147 do { \
148 per_cpu_ptr(mib[!in_softirq()], get_cpu())->mibs[field]++; \
149 put_cpu(); \
150 } while (0)
151#define SNMP_DEC_STATS(mib, field) \
152 do { \
153 per_cpu_ptr(mib[!in_softirq()], get_cpu())->mibs[field]--; \
154 put_cpu(); \
155 } while (0)
156#define SNMP_ADD_STATS(mib, field, addend) \
157 do { \
158 per_cpu_ptr(mib[!in_softirq()], get_cpu())->mibs[field] += addend; \
159 put_cpu(); \
160 } while (0)
161#define SNMP_ADD_STATS_BH(mib, field, addend) \
162 (per_cpu_ptr(mib[0], raw_smp_processor_id())->mibs[field] += addend)
163#define SNMP_ADD_STATS_USER(mib, field, addend) \
164 do { \
165 per_cpu_ptr(mib[1], get_cpu())->mibs[field] += addend; \
166 put_cpu(); \
167 } while (0)
168#define SNMP_UPD_PO_STATS(mib, basefield, addend) \
169 do { \
170 __typeof__(mib[0]) ptr = per_cpu_ptr(mib[!in_softirq()], get_cpu());\
171 ptr->mibs[basefield##PKTS]++; \
172 ptr->mibs[basefield##OCTETS] += addend;\
173 put_cpu(); \
174 } while (0)
175#define SNMP_UPD_PO_STATS_BH(mib, basefield, addend) \
176 do { \
177 __typeof__(mib[0]) ptr = per_cpu_ptr(mib[!in_softirq()], raw_smp_processor_id());\
178 ptr->mibs[basefield##PKTS]++; \
179 ptr->mibs[basefield##OCTETS] += addend;\
180 } while (0)
181#endif
182