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--- old/usr/src/uts/common/inet/tcp_stats.h
+++ new/usr/src/uts/common/inet/tcp_stats.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
24 24 */
25 25
26 26 #ifndef _INET_TCP_STATS_H
27 27 #define _INET_TCP_STATS_H
28 28
29 29 /*
30 30 * TCP private kernel statistics declarations.
31 31 */
32 32
33 33 #ifdef __cplusplus
34 34 extern "C" {
35 35 #endif
36 36
37 37 #ifdef _KERNEL
38 38
39 39 /*
40 40 * TCP Statistics.
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41 41 *
42 42 * How TCP statistics work.
43 43 *
44 44 * There are two types of statistics invoked by two macros.
45 45 *
46 46 * TCP_STAT(name) does non-atomic increment of a named stat counter. It is
47 47 * supposed to be used in non MT-hot paths of the code.
48 48 *
49 49 * TCP_DBGSTAT(name) does atomic increment of a named stat counter. It is
50 50 * supposed to be used for DEBUG purposes and may be used on a hot path.
51 - * These counters are only available in a debugged kerel. They are grouped
51 + * These counters are only available in a debugged kernel. They are grouped
52 52 * under the TCP_DEBUG_COUNTER C pre-processor condition.
53 53 *
54 54 * Both TCP_STAT and TCP_DBGSTAT counters are available using kstat
55 55 * (use "kstat tcp" to get them).
56 56 *
57 57 * How to add new counters.
58 58 *
59 59 * 1) Add a field in the tcp_stat structure describing your counter.
60 60 * 2) Add a line in the template in tcp_kstat2_init() with the name
61 61 * of the counter.
62 62 * 3) Update tcp_clr_stats() and tcp_cp_stats() with the new counters.
63 63 * IMPORTANT!! - make sure that all the above functions are in sync !!
64 64 * 4) Use either TCP_STAT or TCP_DBGSTAT with the name.
65 65 *
66 66 * Please avoid using private counters which are not kstat-exported.
67 67 *
68 68 * Implementation note.
69 69 *
70 70 * Both the MIB2 and tcp_stat_t counters are kept per CPU in the array
71 71 * tcps_sc in tcp_stack_t. Each array element is a pointer to a
72 72 * tcp_stats_cpu_t struct. Once allocated, the tcp_stats_cpu_t struct is
73 73 * not freed until the tcp_stack_t is going away. So there is no need to
74 74 * acquire a lock before accessing the stats counters.
75 75 */
76 76
77 77 #ifndef TCP_DEBUG_COUNTER
78 78 #ifdef DEBUG
79 79 #define TCP_DEBUG_COUNTER 1
80 80 #else
81 81 #define TCP_DEBUG_COUNTER 0
82 82 #endif
83 83 #endif
84 84
85 85 /* Kstats */
86 86 typedef struct tcp_stat {
87 87 kstat_named_t tcp_time_wait_syn_success;
88 88 kstat_named_t tcp_clean_death_nondetached;
89 89 kstat_named_t tcp_eager_blowoff_q;
90 90 kstat_named_t tcp_eager_blowoff_q0;
91 91 kstat_named_t tcp_no_listener;
92 92 kstat_named_t tcp_listendrop;
93 93 kstat_named_t tcp_listendropq0;
94 94 kstat_named_t tcp_wsrv_called;
95 95 kstat_named_t tcp_flwctl_on;
96 96 kstat_named_t tcp_timer_fire_early;
97 97 kstat_named_t tcp_timer_fire_miss;
98 98 kstat_named_t tcp_zcopy_on;
99 99 kstat_named_t tcp_zcopy_off;
100 100 kstat_named_t tcp_zcopy_backoff;
101 101 kstat_named_t tcp_fusion_flowctl;
102 102 kstat_named_t tcp_fusion_backenabled;
103 103 kstat_named_t tcp_fusion_urg;
104 104 kstat_named_t tcp_fusion_putnext;
105 105 kstat_named_t tcp_fusion_unfusable;
106 106 kstat_named_t tcp_fusion_aborted;
107 107 kstat_named_t tcp_fusion_unqualified;
108 108 kstat_named_t tcp_fusion_rrw_busy;
109 109 kstat_named_t tcp_fusion_rrw_msgcnt;
110 110 kstat_named_t tcp_fusion_rrw_plugged;
111 111 kstat_named_t tcp_in_ack_unsent_drop;
112 112 kstat_named_t tcp_sock_fallback;
113 113 kstat_named_t tcp_lso_enabled;
114 114 kstat_named_t tcp_lso_disabled;
115 115 kstat_named_t tcp_lso_times;
116 116 kstat_named_t tcp_lso_pkt_out;
117 117 kstat_named_t tcp_listen_cnt_drop;
118 118 kstat_named_t tcp_listen_mem_drop;
119 119 kstat_named_t tcp_zwin_mem_drop;
120 120 kstat_named_t tcp_zwin_ack_syn;
121 121 kstat_named_t tcp_rst_unsent;
122 122 kstat_named_t tcp_reclaim_cnt;
123 123 kstat_named_t tcp_reass_timeout;
124 124 #ifdef TCP_DEBUG_COUNTER
125 125 kstat_named_t tcp_time_wait;
126 126 kstat_named_t tcp_rput_time_wait;
127 127 kstat_named_t tcp_detach_time_wait;
128 128 kstat_named_t tcp_timeout_calls;
129 129 kstat_named_t tcp_timeout_cached_alloc;
130 130 kstat_named_t tcp_timeout_cancel_reqs;
131 131 kstat_named_t tcp_timeout_canceled;
132 132 kstat_named_t tcp_timermp_freed;
133 133 kstat_named_t tcp_push_timer_cnt;
134 134 kstat_named_t tcp_ack_timer_cnt;
135 135 #endif
136 136 } tcp_stat_t;
137 137
138 138 /*
139 139 * This struct contains only the counter part of tcp_stat_t. It is used
140 140 * in tcp_stats_cpu_t instead of tcp_stat_t to save memory space.
141 141 */
142 142 typedef struct tcp_stat_counter_s {
143 143 uint64_t tcp_time_wait_syn_success;
144 144 uint64_t tcp_clean_death_nondetached;
145 145 uint64_t tcp_eager_blowoff_q;
146 146 uint64_t tcp_eager_blowoff_q0;
147 147 uint64_t tcp_no_listener;
148 148 uint64_t tcp_listendrop;
149 149 uint64_t tcp_listendropq0;
150 150 uint64_t tcp_wsrv_called;
151 151 uint64_t tcp_flwctl_on;
152 152 uint64_t tcp_timer_fire_early;
153 153 uint64_t tcp_timer_fire_miss;
154 154 uint64_t tcp_zcopy_on;
155 155 uint64_t tcp_zcopy_off;
156 156 uint64_t tcp_zcopy_backoff;
157 157 uint64_t tcp_fusion_flowctl;
158 158 uint64_t tcp_fusion_backenabled;
159 159 uint64_t tcp_fusion_urg;
160 160 uint64_t tcp_fusion_putnext;
161 161 uint64_t tcp_fusion_unfusable;
162 162 uint64_t tcp_fusion_aborted;
163 163 uint64_t tcp_fusion_unqualified;
164 164 uint64_t tcp_fusion_rrw_busy;
165 165 uint64_t tcp_fusion_rrw_msgcnt;
166 166 uint64_t tcp_fusion_rrw_plugged;
167 167 uint64_t tcp_in_ack_unsent_drop;
168 168 uint64_t tcp_sock_fallback;
169 169 uint64_t tcp_lso_enabled;
170 170 uint64_t tcp_lso_disabled;
171 171 uint64_t tcp_lso_times;
172 172 uint64_t tcp_lso_pkt_out;
173 173 uint64_t tcp_listen_cnt_drop;
174 174 uint64_t tcp_listen_mem_drop;
175 175 uint64_t tcp_zwin_mem_drop;
176 176 uint64_t tcp_zwin_ack_syn;
177 177 uint64_t tcp_rst_unsent;
178 178 uint64_t tcp_reclaim_cnt;
179 179 uint64_t tcp_reass_timeout;
180 180 #ifdef TCP_DEBUG_COUNTER
181 181 uint64_t tcp_time_wait;
182 182 uint64_t tcp_rput_time_wait;
183 183 uint64_t tcp_detach_time_wait;
184 184 uint64_t tcp_timeout_calls;
185 185 uint64_t tcp_timeout_cached_alloc;
186 186 uint64_t tcp_timeout_cancel_reqs;
187 187 uint64_t tcp_timeout_canceled;
188 188 uint64_t tcp_timermp_freed;
189 189 uint64_t tcp_push_timer_cnt;
190 190 uint64_t tcp_ack_timer_cnt;
191 191 #endif
192 192 } tcp_stat_counter_t;
193 193
194 194 typedef struct tcp_g_stat {
195 195 kstat_named_t tcp_timermp_alloced;
196 196 kstat_named_t tcp_timermp_allocfail;
197 197 kstat_named_t tcp_timermp_allocdblfail;
198 198 kstat_named_t tcp_freelist_cleanup;
199 199 } tcp_g_stat_t;
200 200
201 201 /* Per CPU stats: TCP MIB2, TCP kstat and connection counter. */
202 202 typedef struct {
203 203 int64_t tcp_sc_conn_cnt;
204 204 mib2_tcp_t tcp_sc_mib;
205 205 tcp_stat_counter_t tcp_sc_stats;
206 206 } tcp_stats_cpu_t;
207 207
208 208 #define TCPS_BUMP_MIB(tcps, x) \
209 209 BUMP_MIB(&(tcps)->tcps_sc[CPU->cpu_seqid]->tcp_sc_mib, x)
210 210
211 211 #define TCPS_UPDATE_MIB(tcps, x, y) \
212 212 UPDATE_MIB(&(tcps)->tcps_sc[CPU->cpu_seqid]->tcp_sc_mib, x, y)
213 213
214 214 #if TCP_DEBUG_COUNTER
215 215 #define TCP_DBGSTAT(tcps, x) \
216 216 atomic_inc_64( \
217 217 &((tcps)->tcps_sc[CPU->cpu_seqid]->tcp_sc_stats.x))
218 218 #define TCP_G_DBGSTAT(x) \
219 219 atomic_inc_64(&(tcp_g_statistics.x.value.ui64))
220 220 #else
221 221 #define TCP_DBGSTAT(tcps, x)
222 222 #define TCP_G_DBGSTAT(x)
223 223 #endif
224 224
225 225 #define TCP_G_STAT(x) (tcp_g_statistics.x.value.ui64++)
226 226
227 227 #define TCP_STAT(tcps, x) \
228 228 ((tcps)->tcps_sc[CPU->cpu_seqid]->tcp_sc_stats.x++)
229 229 #define TCP_STAT_UPDATE(tcps, x, n) \
230 230 ((tcps)->tcps_sc[CPU->cpu_seqid]->tcp_sc_stats.x += (n))
231 231 #define TCP_STAT_SET(tcps, x, n) \
232 232 ((tcps)->tcps_sc[CPU->cpu_seqid]->tcp_sc_stats.x = (n))
233 233
234 234 /* Global TCP stats for all IP stacks. */
235 235 extern tcp_g_stat_t tcp_g_statistics;
236 236 extern kstat_t *tcp_g_kstat;
237 237
238 238 extern void *tcp_g_kstat_init(tcp_g_stat_t *);
239 239 extern void tcp_g_kstat_fini(kstat_t *);
240 240 extern void *tcp_kstat_init(netstackid_t);
241 241 extern void tcp_kstat_fini(netstackid_t, kstat_t *);
242 242 extern void *tcp_kstat2_init(netstackid_t);
243 243 extern void tcp_kstat2_fini(netstackid_t, kstat_t *);
244 244
245 245 #endif /* _KERNEL */
246 246
247 247 #ifdef __cplusplus
248 248 }
249 249 #endif
250 250
251 251 #endif /* _INET_TCP_STATS_H */
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