1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 *
25 * Copyright 2015 Garrett D'Amore <garrett@damore.org>
26 */
27
28 #include <stdlib.h>
29 #include <string.h>
30 #include <strings.h>
31 #include <sys/types.h>
32 #include <libdladm_impl.h>
33 #include <libdllink.h>
34 #include <libdlstat.h>
35 #include <libdlether.h>
36
37 /*
38 * Ethernet administration library.
39 */
40
41 /*
42 * kstat names for extracting attributes.
43 */
44 typedef struct ether_spdx_s {
45 dladm_ether_spdx_t eth_spdx;
46 char *eth_spdx_stat_name;
47 } ether_spdx_t;
48
49 static ether_spdx_t cap_spdx[] = {
50 {{400000, LINK_DUPLEX_FULL}, "cap_400gfdx"},
51 {{200000, LINK_DUPLEX_FULL}, "cap_200gfdx"},
52 {{100000, LINK_DUPLEX_FULL}, "cap_100gfdx"},
53 {{50000, LINK_DUPLEX_FULL}, "cap_50gfdx"},
54 {{40000, LINK_DUPLEX_FULL}, "cap_40gfdx"},
55 {{25000, LINK_DUPLEX_FULL}, "cap_25gfdx"},
56 {{10000, LINK_DUPLEX_FULL}, "cap_10gfdx"},
57 {{5000, LINK_DUPLEX_FULL}, "cap_5000fdx"},
58 {{2500, LINK_DUPLEX_FULL}, "cap_2500fdx"},
59 {{1000, LINK_DUPLEX_FULL}, "cap_1000fdx"},
60 {{1000, LINK_DUPLEX_HALF}, "cap_1000hdx"},
61 {{100, LINK_DUPLEX_FULL}, "cap_100fdx"},
62 {{100, LINK_DUPLEX_HALF}, "cap_100hdx"},
63 {{10, LINK_DUPLEX_FULL}, "cap_10fdx"},
64 {{10, LINK_DUPLEX_HALF}, "cap_10hdx"},
65 {{0, LINK_DUPLEX_UNKNOWN}, NULL}
66 };
67
68 static ether_spdx_t adv_cap_spdx[] = {
69 {{400000, LINK_DUPLEX_FULL}, "adv_cap_400gfdx"},
70 {{200000, LINK_DUPLEX_FULL}, "adv_cap_200gfdx"},
71 {{100000, LINK_DUPLEX_FULL}, "adv_cap_100gfdx"},
72 {{50000, LINK_DUPLEX_FULL}, "adv_cap_50gfdx"},
73 {{40000, LINK_DUPLEX_FULL}, "adv_cap_40gfdx"},
74 {{25000, LINK_DUPLEX_FULL}, "adv_cap_25gfdx"},
75 {{10000, LINK_DUPLEX_FULL}, "adv_cap_10gfdx"},
76 {{5000, LINK_DUPLEX_FULL}, "adv_cap_5000fdx"},
77 {{2500, LINK_DUPLEX_FULL}, "adv_cap_2500fdx"},
78 {{1000, LINK_DUPLEX_FULL}, "adv_cap_1000fdx"},
79 {{1000, LINK_DUPLEX_HALF}, "adv_cap_1000hdx"},
80 {{100, LINK_DUPLEX_FULL}, "adv_cap_100fdx"},
81 {{100, LINK_DUPLEX_HALF}, "adv_cap_100hdx"},
82 {{10, LINK_DUPLEX_FULL}, "adv_cap_10fdx"},
83 {{10, LINK_DUPLEX_HALF}, "adv_cap_10hdx"},
84 {{0, LINK_DUPLEX_UNKNOWN}, NULL}
85 };
86
87 static ether_spdx_t lp_cap_spdx[] = {
88 {{400000, LINK_DUPLEX_FULL}, "lp_cap_400gfdx"},
89 {{200000, LINK_DUPLEX_FULL}, "lp_cap_200gfdx"},
90 {{100000, LINK_DUPLEX_FULL}, "lp_cap_100gfdx"},
91 {{50000, LINK_DUPLEX_FULL}, "lp_cap_50gfdx"},
92 {{40000, LINK_DUPLEX_FULL}, "lp_cap_40gfdx"},
93 {{25000, LINK_DUPLEX_FULL}, "lp_cap_25gfdx"},
94 {{10000, LINK_DUPLEX_FULL}, "lp_cap_10gfdx"},
95 {{5000, LINK_DUPLEX_FULL}, "lp_cap_5000fdx"},
96 {{2500, LINK_DUPLEX_FULL}, "lp_cap_2500fdx"},
97 {{1000, LINK_DUPLEX_FULL}, "lp_cap_1000fdx"},
98 {{1000, LINK_DUPLEX_HALF}, "lp_cap_1000hdx"},
99 {{100, LINK_DUPLEX_FULL}, "lp_cap_100fdx"},
100 {{100, LINK_DUPLEX_HALF}, "lp_cap_100hdx"},
101 {{10, LINK_DUPLEX_FULL}, "lp_cap_10fdx"},
102 {{10, LINK_DUPLEX_HALF}, "lp_cap_10hdx"},
103 {{0, LINK_DUPLEX_UNKNOWN}, NULL}
104 };
105
106 typedef struct attr_kstat_s {
107 char *autoneg_stat;
108 char *pause_stat;
109 char *asmpause_stat;
110 char *fault_stat;
111 ether_spdx_t *spdx_stat;
112 } attr_kstat_t;
113
114 static attr_kstat_t attrstat[] = {
115 {"link_autoneg", /* current */
116 "link_pause", "link_asmpause", NULL,
117 NULL},
118
119 {"cap_autoneg", /* capable */
120 "cap_pause", "cap_asmpause", "cap_rem_fault",
121 cap_spdx},
122
123 {"adv_cap_autoneg", /* advertised */
124 "adv_cap_pause", "adv_cap_asmpause", "adv_rem_fault",
125 adv_cap_spdx},
126
127 {"lp_cap_autoneg", /* peer advertised */
128 "lp_cap_pause", "lp_cap_asmpause", "lp_rem_fault",
129 lp_cap_spdx}
130 };
131
132 /*
133 * Get the speed-duplex stats specified in the ether_spdx_t table passed in
134 * by querying the appropriate kstat for each entry in the table.
135 */
136 static dladm_status_t
i_dladm_get_spdx(dladm_handle_t handle,datalink_id_t linkid,dladm_ether_attr_t * eattr,ether_spdx_t * spdx_stat)137 i_dladm_get_spdx(dladm_handle_t handle, datalink_id_t linkid,
138 dladm_ether_attr_t *eattr, ether_spdx_t *spdx_stat)
139 {
140 int i, nspdx = 0;
141 uint32_t speed;
142 dladm_status_t status;
143 void *ptr;
144
145 eattr->le_spdx = NULL;
146 for (i = 0; spdx_stat[i].eth_spdx_stat_name != NULL; i++) {
147 if ((status = dladm_get_single_mac_stat(handle, linkid,
148 spdx_stat[i].eth_spdx_stat_name,
149 KSTAT_DATA_UINT32, &speed)) != DLADM_STATUS_OK) {
150
151 if (status == DLADM_STATUS_NOTFOUND) {
152 /*
153 * Missing statistic.
154 * Skip this one and try the rest.
155 */
156 continue;
157 } else {
158 free(eattr->le_spdx);
159 eattr->le_num_spdx = 0;
160 return (status);
161 }
162 }
163 if (speed == 0)
164 continue;
165 nspdx++;
166 ptr = realloc(eattr->le_spdx,
167 nspdx * sizeof (dladm_ether_spdx_t));
168 if (ptr != NULL) {
169 eattr->le_spdx = ptr;
170 } else {
171 free(eattr->le_spdx);
172 eattr->le_num_spdx = 0;
173 return (DLADM_STATUS_NOMEM);
174 }
175 eattr->le_spdx[nspdx - 1] = spdx_stat[i].eth_spdx;
176 }
177 eattr->le_num_spdx = nspdx;
178 return (DLADM_STATUS_OK);
179 }
180
181 /*
182 * Returns "yes" or "no" based on the autonegotion capabilities
183 * for the parameter type indicated by ptype. The permissible
184 * values for ptype are CURRENT, CAPABLE, ADV, PEERADV.
185 */
186 char *
dladm_ether_autoneg2str(char * buf,size_t buflen,dladm_ether_info_t * eattr,int ptype)187 dladm_ether_autoneg2str(char *buf, size_t buflen, dladm_ether_info_t *eattr,
188 int ptype)
189 {
190 boolean_t autoneg = eattr->lei_attr[ptype].le_autoneg;
191
192 (void) strlcpy(buf, (autoneg ? "yes" : "no"), buflen);
193 return (buf);
194 }
195
196 /*
197 * Returns {"bi", "tx", "none"} based on the flow-control capabilities
198 * for the parameter type indicated by ptype. The permissible
199 * values for ptype are CURRENT, CAPABLE, ADV, PEERADV.
200 */
201 char *
dladm_ether_pause2str(char * buf,size_t buflen,dladm_ether_info_t * eattr,int ptype)202 dladm_ether_pause2str(char *buf, size_t buflen, dladm_ether_info_t *eattr,
203 int ptype)
204 {
205 boolean_t pause = eattr->lei_attr[ptype].le_pause;
206 boolean_t asmpause = eattr->lei_attr[ptype].le_asmpause;
207
208 if (pause)
209 (void) strlcpy(buf, "bi", buflen);
210 else if (asmpause)
211 (void) strlcpy(buf, "tx", buflen);
212 else
213 (void) strlcpy(buf, "none", buflen);
214 return (buf);
215 }
216
217 /*
218 * For a given param type, parse the list of speed-duplex pairs in
219 * the dladm_ether_info_t and return a comma-separated string formatted
220 * as <speed><speed-unit-char>-<duplex-chars> where <speed> is the value of
221 * speed, in units specifid by the <speed-unit-char> which is one
222 * of 'M' (Mbits/sec) or 'G' (Gigabits/sec). The permissible values of
223 * <duplex-chars> are 'u' (indicating duplex is "unknown") or one/both of
224 * 'f', 'h' (indicating full-duplex and half-duplex respectively)
225 */
226 extern char *
dladm_ether_spdx2str(char * buf,size_t buflen,dladm_ether_info_t * eattr,int ptype)227 dladm_ether_spdx2str(char *buf, size_t buflen, dladm_ether_info_t *eattr,
228 int ptype)
229 {
230 uint_t i, j;
231 boolean_t is_full, is_half;
232 int speed;
233 char speed_unit;
234 char tmpbuf[DLADM_STRSIZE];
235 dladm_ether_spdx_t *spdx;
236 uint32_t nspdx;
237
238 spdx = eattr->lei_attr[ptype].le_spdx;
239 nspdx = eattr->lei_attr[ptype].le_num_spdx;
240 for (i = 0; i < nspdx; i++) {
241
242 speed = spdx[i].lesd_speed;
243
244 /*
245 * if we have already covered this speed for
246 * the <other>-duplex case before this, skip it
247 */
248 for (j = 0; j < i; j++) {
249 if (speed == spdx[j].lesd_speed)
250 break;
251 }
252 if (j < i)
253 continue;
254
255 if ((speed % 1000) == 0) {
256 speed = speed/1000;
257 speed_unit = 'G';
258 } else {
259 speed_unit = 'M';
260 }
261 (void) snprintf(tmpbuf, DLADM_STRSIZE, "%d%c",
262 speed, speed_unit);
263 if (i > 0)
264 (void) strncat(buf, ",", buflen);
265 (void) strncat(buf, tmpbuf, buflen);
266
267 is_full = is_half = B_FALSE;
268 /*
269 * Find all the supported duplex values for this speed.
270 */
271 for (j = 0; j < nspdx; j++) {
272 if (spdx[j].lesd_speed != spdx[i].lesd_speed)
273 continue;
274 if (spdx[j].lesd_duplex == LINK_DUPLEX_FULL)
275 is_full = B_TRUE;
276 if (spdx[j].lesd_duplex == LINK_DUPLEX_HALF)
277 is_half = B_TRUE;
278 }
279 if (is_full && is_half)
280 (void) strncat(buf, "-fh", buflen);
281 else if (is_full)
282 (void) strncat(buf, "-f", buflen);
283 else if (is_half)
284 (void) strncat(buf, "-h", buflen);
285 }
286 return (buf);
287 }
288
289 /*
290 * Extract Ethernet attributes of the link specified by linkid.
291 * Information for the CURRENT, CAPABLE, ADV and PEERADV parameter
292 * types is extracted into the lei_attr[] entries in the dladm_ether_info_t.
293 * On succesful return, the memory allocated in this function should be
294 * freed by calling dladm_ether_info_done().
295 */
296 extern dladm_status_t
dladm_ether_info(dladm_handle_t handle,datalink_id_t linkid,dladm_ether_info_t * eattr)297 dladm_ether_info(dladm_handle_t handle, datalink_id_t linkid,
298 dladm_ether_info_t *eattr)
299 {
300 uint32_t autoneg, pause, asmpause, fault;
301 uint64_t sp64;
302 dladm_status_t status;
303 int i;
304 link_duplex_t link_duplex;
305
306 bzero(eattr, sizeof (*eattr));
307 status = dladm_datalink_id2info(handle, linkid, NULL, NULL, NULL,
308 eattr->lei_linkname, sizeof (eattr->lei_linkname));
309 if (status != DLADM_STATUS_OK)
310 goto bail;
311
312 /* get current values of speed, duplex, state of link */
313 eattr->lei_attr[CURRENT].le_num_spdx = 1;
314 eattr->lei_attr[CURRENT].le_spdx = malloc(sizeof (dladm_ether_spdx_t));
315 if (eattr->lei_attr[CURRENT].le_spdx == NULL) {
316 status = DLADM_STATUS_NOMEM;
317 goto bail;
318 }
319
320 if ((status = dladm_get_single_mac_stat(handle, linkid, "ifspeed",
321 KSTAT_DATA_UINT64, &sp64)) != DLADM_STATUS_OK)
322 goto bail;
323
324 if ((status = dladm_get_single_mac_stat(handle, linkid, "link_duplex",
325 KSTAT_DATA_UINT32, &link_duplex)) != DLADM_STATUS_OK)
326 goto bail;
327
328 eattr->lei_attr[CURRENT].le_spdx->lesd_speed = (int)(sp64/1000000ull);
329 eattr->lei_attr[CURRENT].le_spdx->lesd_duplex = link_duplex;
330
331 status = dladm_get_state(handle, linkid, &eattr->lei_state);
332 if (status != DLADM_STATUS_OK)
333 goto bail;
334
335 /* get the auto, pause, asmpause, fault values */
336 for (i = CURRENT; i <= PEERADV; i++) {
337
338 status = dladm_get_single_mac_stat(handle, linkid,
339 attrstat[i].autoneg_stat, KSTAT_DATA_UINT32, &autoneg);
340 if (status != DLADM_STATUS_OK)
341 goto bail;
342
343 status = dladm_get_single_mac_stat(handle, linkid,
344 attrstat[i].pause_stat, KSTAT_DATA_UINT32, &pause);
345 if (status != DLADM_STATUS_OK)
346 goto bail;
347
348 status = dladm_get_single_mac_stat(handle, linkid,
349 attrstat[i].asmpause_stat, KSTAT_DATA_UINT32, &asmpause);
350 if (status != DLADM_STATUS_OK)
351 goto bail;
352
353 eattr->lei_attr[i].le_autoneg = (autoneg != 0);
354 eattr->lei_attr[i].le_pause = (pause != 0);
355 eattr->lei_attr[i].le_asmpause = (asmpause != 0);
356
357 if (i == CURRENT)
358 continue;
359 status = dladm_get_single_mac_stat(handle, linkid,
360 attrstat[i].fault_stat, KSTAT_DATA_UINT32, &fault);
361 if (status != DLADM_STATUS_OK)
362 goto bail;
363 eattr->lei_attr[i].le_fault = (pause != 0);
364
365 /* get all the supported speed/duplex values */
366 status = i_dladm_get_spdx(handle, linkid, &eattr->lei_attr[i],
367 attrstat[i].spdx_stat);
368 if (status != DLADM_STATUS_OK)
369 goto bail;
370 }
371 eattr->lei_attr[CURRENT].le_fault =
372 eattr->lei_attr[ADV].le_fault || eattr->lei_attr[PEERADV].le_fault;
373 bail:
374 if (status != DLADM_STATUS_OK)
375 dladm_ether_info_done(eattr);
376 return (status);
377 }
378
379 extern void
dladm_ether_info_done(dladm_ether_info_t * eattr)380 dladm_ether_info_done(dladm_ether_info_t *eattr)
381 {
382 int i;
383
384 for (i = CURRENT; i <= PEERADV; i++) {
385 free(eattr->lei_attr[i].le_spdx);
386 eattr->lei_attr[i].le_spdx = NULL;
387 }
388 }
389