1 /* 2 * Copyright (c) 1983, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD$"; 40 #endif /* not lint */ 41 42 #include <sys/param.h> 43 #include <sys/mbuf.h> 44 #include <sys/protosw.h> 45 #include <sys/socket.h> 46 #include <sys/sysctl.h> 47 48 #include <err.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include "netstat.h" 53 54 #define YES 1 55 typedef int bool; 56 57 /* XXX: mbtypes stats temporarily disactivated. */ 58 #if 0 59 static struct mbtypenames { 60 int mt_type; 61 char *mt_name; 62 } mbtypenames[] = { 63 { MT_DATA, "data" }, 64 { MT_OOBDATA, "oob data" }, 65 { MT_CONTROL, "ancillary data" }, 66 { MT_HEADER, "packet headers" }, 67 #ifdef MT_SOCKET 68 { MT_SOCKET, "socket structures" }, /* XXX */ 69 #endif 70 #ifdef MT_PCB 71 { MT_PCB, "protocol control blocks" }, /* XXX */ 72 #endif 73 #ifdef MT_RTABLE 74 { MT_RTABLE, "routing table entries" }, /* XXX */ 75 #endif 76 #ifdef MT_HTABLE 77 { MT_HTABLE, "IMP host table entries" }, /* XXX */ 78 #endif 79 #ifdef MT_ATABLE 80 { MT_ATABLE, "address resolution tables" }, 81 #endif 82 { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */ 83 { MT_SONAME, "socket names and addresses" }, 84 #ifdef MT_SOOPTS 85 { MT_SOOPTS, "socket options" }, 86 #endif 87 #ifdef MT_RIGHTS 88 { MT_RIGHTS, "access rights" }, 89 #endif 90 #ifdef MT_IFADDR 91 { MT_IFADDR, "interface addresses" }, /* XXX */ 92 #endif 93 { 0, 0 } 94 }; 95 #endif /* 0 */ 96 97 /* 98 * Print mbuf statistics. 99 */ 100 void 101 mbpr(u_long mbaddr, u_long mbtaddr, u_long nmbcaddr, u_long nmbufaddr, 102 u_long mblimaddr, u_long cllimaddr, u_long cpusaddr, u_long pgsaddr, 103 u_long mbpaddr) 104 { 105 int i, nmbufs, nmbclusters, ncpu, page_size, num_objs; 106 u_int mbuf_limit, clust_limit; 107 u_long totspace, totnum, totfree; 108 size_t mlen; 109 struct mbstat *mbstat = NULL; 110 struct mbpstat **mbpstat = NULL; 111 112 /* XXX: mbtypes stats temporarily disabled. */ 113 #if 0 114 int nmbtypes; 115 size_t mbtypeslen; 116 struct mbtypenames *mp; 117 u_long *mbtypes = NULL; 118 bool *seen = NULL; 119 120 /* 121 * XXX 122 * We can't kread() mbtypeslen from a core image so we'll 123 * bogusly assume it's the same as in the running kernel. 124 */ 125 if (sysctlbyname("kern.ipc.mbtypes", NULL, &mbtypeslen, NULL, 0) < 0) { 126 warn("sysctl: retrieving mbtypes length"); 127 goto err; 128 } 129 if ((mbtypes = malloc(mbtypeslen)) == NULL) { 130 warn("malloc: %lu bytes for mbtypes", (u_long)mbtypeslen); 131 goto err; 132 } 133 134 nmbtypes = mbtypeslen / sizeof(*mbtypes); 135 if ((seen = calloc(nmbtypes, sizeof(*seen))) == NULL) { 136 warn("calloc"); 137 goto err; 138 } 139 #endif 140 141 mlen = sizeof *mbstat; 142 if ((mbstat = malloc(mlen)) == NULL) { 143 warn("malloc: cannot allocate memory for mbstat"); 144 goto err; 145 } 146 147 /* 148 * XXX: Unfortunately, for the time being, we have to fetch 149 * the total length of the per-CPU stats area via sysctl 150 * (regardless of whether we're looking at a core or not. 151 */ 152 if (sysctlbyname("kern.ipc.mb_statpcpu", NULL, &mlen, NULL, 0) < 0) { 153 warn("sysctl: retrieving mb_statpcpu len"); 154 goto err; 155 } 156 num_objs = (int)(mlen / sizeof(struct mbpstat)); 157 if ((mbpstat = calloc(num_objs, sizeof(struct mbpstat *))) == NULL) { 158 warn("calloc: cannot allocate memory for mbpstats pointers"); 159 goto err; 160 } 161 if ((mbpstat[0] = calloc(num_objs, sizeof(struct mbpstat))) == NULL) { 162 warn("calloc: cannot allocate memory for mbpstats"); 163 goto err; 164 } 165 166 if (mbaddr) { 167 if (kread(mbpaddr, (char *)mbpstat[0], mlen)) 168 goto err; 169 if (kread(mbaddr, (char *)mbstat, sizeof mbstat)) 170 goto err; 171 #if 0 172 if (kread(mbtaddr, (char *)mbtypes, mbtypeslen)) 173 goto err; 174 #endif 175 if (kread(nmbcaddr, (char *)&nmbclusters, sizeof(int))) 176 goto err; 177 if (kread(nmbufaddr, (char *)&nmbufs, sizeof(int))) 178 goto err; 179 if (kread(mblimaddr, (char *)&mbuf_limit, sizeof(u_int))) 180 goto err; 181 if (kread(cllimaddr, (char *)&clust_limit, sizeof(u_int))) 182 goto err; 183 if (kread(cpusaddr, (char *)&ncpu, sizeof(int))) 184 goto err; 185 if (kread(pgsaddr, (char *)&page_size, sizeof(int))) 186 goto err; 187 } else { 188 if (sysctlbyname("kern.ipc.mb_statpcpu", mbpstat[0], &mlen, 189 NULL, 0) < 0) { 190 warn("sysctl: retrieving mb_statpcpu"); 191 goto err; 192 } 193 mlen = sizeof *mbstat; 194 if (sysctlbyname("kern.ipc.mbstat", mbstat, &mlen, NULL, 0) 195 < 0) { 196 warn("sysctl: retrieving mbstat"); 197 goto err; 198 } 199 #if 0 200 if (sysctlbyname("kern.ipc.mbtypes", mbtypes, &mbtypeslen, NULL, 201 0) < 0) { 202 warn("sysctl: retrieving mbtypes"); 203 goto err; 204 } 205 #endif 206 mlen = sizeof(int); 207 if (sysctlbyname("kern.ipc.nmbclusters", &nmbclusters, &mlen, 208 NULL, 0) < 0) { 209 warn("sysctl: retrieving nmbclusters"); 210 goto err; 211 } 212 mlen = sizeof(int); 213 if (sysctlbyname("kern.ipc.nmbufs", &nmbufs, &mlen, NULL, 0) 214 < 0) { 215 warn("sysctl: retrieving nmbufs"); 216 goto err; 217 } 218 mlen = sizeof(u_int); 219 if (sysctlbyname("kern.ipc.mbuf_limit", &mbuf_limit, &mlen, 220 NULL, 0) < 0) { 221 warn("sysctl: retrieving mbuf_limit"); 222 goto err; 223 } 224 mlen = sizeof(u_int); 225 if (sysctlbyname("kern.ipc.clust_limit", &clust_limit, &mlen, 226 NULL, 0) < 0) { 227 warn("sysctl: retrieving clust_limit"); 228 goto err; 229 } 230 mlen = sizeof(int); 231 if (sysctlbyname("kern.smp.cpus", &ncpu, &mlen, NULL, 0) < 0 && 232 sysctlbyname("hw.ncpu", &ncpu, &mlen, NULL, 0) < 0) { 233 warn("sysctl: retrieving number of cpus"); 234 goto err; 235 } 236 mlen = sizeof(int); 237 if (sysctlbyname("hw.pagesize", &page_size, &mlen, NULL, 0) 238 < 0) { 239 warn("sysctl: retrieving hw.pagesize"); 240 goto err; 241 } 242 } 243 244 for (i = 0; i < num_objs; i++) 245 mbpstat[i] = mbpstat[0] + i; 246 247 #undef MSIZE 248 #define MSIZE (mbstat->m_msize) 249 #undef MCLBYTES 250 #define MCLBYTES (mbstat->m_mclbytes) 251 #define MBPERPG (page_size / MSIZE) 252 #define CLPERPG (page_size / MCLBYTES) 253 #define GENLST (num_objs - 1) 254 255 printf("mbuf usage:\n"); 256 printf("\tGEN list:\t%lu/%lu (in use/in pool)\n", 257 (mbpstat[GENLST]->mb_mbpgs * MBPERPG - mbpstat[GENLST]->mb_mbfree), 258 (mbpstat[GENLST]->mb_mbpgs * MBPERPG)); 259 totnum = mbpstat[GENLST]->mb_mbpgs * MBPERPG; 260 totfree = mbpstat[GENLST]->mb_mbfree; 261 totspace = mbpstat[GENLST]->mb_mbpgs * page_size; 262 for (i = 0; i < ncpu; i++) { 263 printf("\tCPU #%d list:\t%lu/%lu (in use/in pool)\n", i, 264 (mbpstat[i]->mb_mbpgs * MBPERPG - mbpstat[i]->mb_mbfree), 265 (mbpstat[i]->mb_mbpgs * MBPERPG)); 266 totspace += mbpstat[i]->mb_mbpgs * page_size; 267 totnum += mbpstat[i]->mb_mbpgs * MBPERPG; 268 totfree += mbpstat[i]->mb_mbfree; 269 } 270 printf("\tTotal:\t\t%lu/%lu (in use/in pool)\n", (totnum - totfree), 271 totnum); 272 printf("\tMaximum number allowed on each CPU list: %d\n", mbuf_limit); 273 printf("\tMaximum possible: %d\n", nmbufs); 274 printf("\t%lu%% of mbuf map consumed\n", ((totspace * 100) / (nmbufs 275 * MSIZE))); 276 277 printf("mbuf cluster usage:\n"); 278 printf("\tGEN list:\t%lu/%lu (in use/in pool)\n", 279 (mbpstat[GENLST]->mb_clpgs * CLPERPG - mbpstat[GENLST]->mb_clfree), 280 (mbpstat[GENLST]->mb_clpgs * CLPERPG)); 281 totnum = mbpstat[GENLST]->mb_clpgs * CLPERPG; 282 totfree = mbpstat[GENLST]->mb_clfree; 283 totspace = mbpstat[GENLST]->mb_clpgs * page_size; 284 for (i = 0; i < ncpu; i++) { 285 printf("\tCPU #%d list:\t%lu/%lu (in use/in pool)\n", i, 286 (mbpstat[i]->mb_clpgs * CLPERPG - mbpstat[i]->mb_clfree), 287 (mbpstat[i]->mb_clpgs * CLPERPG)); 288 totspace += mbpstat[i]->mb_clpgs * page_size; 289 totnum += mbpstat[i]->mb_clpgs * CLPERPG; 290 totfree += mbpstat[i]->mb_clfree; 291 } 292 printf("\tTotal:\t\t%lu/%lu (in use/in pool)\n", (totnum - totfree), 293 totnum); 294 printf("\tMaximum number allowed on each CPU list: %d\n", clust_limit); 295 printf("\tMaximum possible: %d\n", nmbclusters); 296 printf("\t%lu%% of cluster map consumed\n", ((totspace * 100) / 297 (nmbclusters * MCLBYTES))); 298 299 printf("%lu requests for memory denied\n", mbstat->m_drops); 300 printf("%lu requests for memory delayed\n", mbstat->m_wait); 301 printf("%lu calls to protocol drain routines\n", mbstat->m_drain); 302 303 err: 304 #if 0 305 if (mbtypes != NULL) 306 free(mbtypes); 307 if (seen != NULL) 308 free(seen); 309 #endif 310 if (mbstat != NULL) 311 free(mbstat); 312 if (mbpstat != NULL) { 313 if (mbpstat[0] != NULL) 314 free(mbpstat[0]); 315 free(mbpstat); 316 } 317 318 return; 319 } 320