1 /*
2  * Copyright (c) 2004-2009 Voltaire Inc.  All rights reserved.
3  * Copyright (c) 2011 Mellanox Technologies LTD.  All rights reserved.
4  *
5  * This software is available to you under a choice of one of two
6  * licenses.  You may choose to be licensed under the terms of the GNU
7  * General Public License (GPL) Version 2, available from the file
8  * COPYING in the main directory of this source tree, or the
9  * OpenIB.org BSD license below:
10  *
11  *     Redistribution and use in source and binary forms, with or
12  *     without modification, are permitted provided that the following
13  *     conditions are met:
14  *
15  *      - Redistributions of source code must retain the above
16  *        copyright notice, this list of conditions and the following
17  *        disclaimer.
18  *
19  *      - Redistributions in binary form must reproduce the above
20  *        copyright notice, this list of conditions and the following
21  *        disclaimer in the documentation and/or other materials
22  *        provided with the distribution.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31  * SOFTWARE.
32  *
33  */
34 
35 #define _GNU_SOURCE
36 
37 #if HAVE_CONFIG_H
38 #  include <config.h>
39 #endif				/* HAVE_CONFIG_H */
40 
41 #include <inttypes.h>
42 #include <string.h>
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <getopt.h>
46 #include <netinet/in.h>
47 #include <sys/types.h>
48 #include <sys/stat.h>
49 #include <fcntl.h>
50 #include <errno.h>
51 
52 #include <infiniband/umad.h>
53 
54 #include <ibdiag_common.h>
55 
56 static char *node_type_str[] = {
57 	"???",
58 	"CA",
59 	"Switch",
60 	"Router",
61 	"iWARP RNIC"
62 };
63 
64 static void ca_dump(umad_ca_t * ca)
65 {
66 	if (!ca->node_type)
67 		return;
68 	printf("%s '%s'\n",
69 	       ((unsigned)ca->node_type <=
70 		IB_NODE_MAX ? node_type_str[ca->node_type] : "???"),
71 	       ca->ca_name);
72 	printf("\t%s type: %s\n",
73 	       ((unsigned)ca->node_type <=
74 		IB_NODE_MAX ? node_type_str[ca->node_type] : "???"),
75 	       ca->ca_type);
76 	printf("\tNumber of ports: %d\n", ca->numports);
77 	printf("\tFirmware version: %s\n", ca->fw_ver);
78 	printf("\tHardware version: %s\n", ca->hw_ver);
79 	printf("\tNode GUID: 0x%016" PRIx64 "\n", ntohll(ca->node_guid));
80 	printf("\tSystem image GUID: 0x%016" PRIx64 "\n",
81 	       ntohll(ca->system_guid));
82 }
83 
84 static char *port_state_str[] = {
85 	"???",
86 	"Down",
87 	"Initializing",
88 	"Armed",
89 	"Active"
90 };
91 
92 static char *port_phy_state_str[] = {
93 	"No state change",
94 	"Sleep",
95 	"Polling",
96 	"Disabled",
97 	"PortConfigurationTraining",
98 	"LinkUp",
99 	"LinkErrorRecovery",
100 	"PhyTest"
101 };
102 
103 static int ret_code(void)
104 {
105 	int e = errno;
106 
107 	if (e > 0)
108 		return -e;
109 	return e;
110 }
111 
112 int sys_read_string(const char *dir_name, const char *file_name, char *str, int max_len)
113 {
114 	char path[256], *s;
115 	size_t len;
116 
117 	snprintf(path, sizeof(path), "%s/%s", dir_name, file_name);
118 
119 	for (s = &path[0]; *s != '\0'; s++)
120 		if (*s == '/')
121 			*s = '.';
122 
123 	len = max_len;
124 	if (sysctlbyname(&path[1], str, &len, NULL, 0) == -1)
125 		return ret_code();
126 
127 	str[(len < max_len) ? len : max_len - 1] = 0;
128 
129 	if ((s = strrchr(str, '\n')))
130 		*s = 0;
131 
132 	return 0;
133 }
134 
135 static int is_fdr10(umad_port_t *port)
136 {
137 	char port_dir[256];
138 	char rate[32];
139 	int len, fdr10 = 0;
140 	char *p;
141 
142 	len = snprintf(port_dir, sizeof(port_dir), "%s/%s/%s/%d",
143 		       SYS_INFINIBAND, port->ca_name, SYS_CA_PORTS_DIR,
144 		       port->portnum);
145 	if (len < 0 || len > sizeof(port_dir))
146 		goto done;
147 
148 	if (sys_read_string(port_dir, SYS_PORT_RATE, rate, sizeof(rate)) == 0) {
149 		if ((p = strchr(rate, ')'))) {
150 			if (!strncasecmp(p - 5, "fdr10", 5))
151 				fdr10 = 1;
152 		}
153 	}
154 
155 done:
156 	return fdr10;
157 }
158 
159 static int port_dump(umad_port_t * port, int alone)
160 {
161 	char *pre = "";
162 	char *hdrpre = "";
163 
164 	if (!port)
165 		return -1;
166 
167 	if (!alone) {
168 		pre = "		";
169 		hdrpre = "	";
170 	}
171 
172 	printf("%sPort %d:\n", hdrpre, port->portnum);
173 	printf("%sState: %s\n", pre,
174 	       (unsigned)port->state <=
175 	       4 ? port_state_str[port->state] : "???");
176 	printf("%sPhysical state: %s\n", pre,
177 	       (unsigned)port->phys_state <=
178 	       7 ? port_phy_state_str[port->phys_state] : "???");
179 	if (is_fdr10(port))
180 		printf("%sRate: %d (FDR10)\n", pre, port->rate);
181 	else
182 		if (port->rate != 2)
183 			printf("%sRate: %d\n", pre, port->rate);
184 		else
185 			printf("%sRate: 2.5\n", pre);
186 	printf("%sBase lid: %d\n", pre, port->base_lid);
187 	printf("%sLMC: %d\n", pre, port->lmc);
188 	printf("%sSM lid: %d\n", pre, port->sm_lid);
189 	printf("%sCapability mask: 0x%08x\n", pre, ntohl(port->capmask));
190 	printf("%sPort GUID: 0x%016" PRIx64 "\n", pre, ntohll(port->port_guid));
191 #ifdef HAVE_UMAD_PORT_LINK_LAYER
192 	printf("%sLink layer: %s\n", pre, port->link_layer);
193 #endif
194 	return 0;
195 }
196 
197 static int ca_stat(char *ca_name, int portnum, int no_ports)
198 {
199 	umad_ca_t ca;
200 	int r;
201 
202 	if ((r = umad_get_ca(ca_name, &ca)) < 0)
203 		return r;
204 
205 	if (!ca.node_type)
206 		return 0;
207 
208 	if (!no_ports && portnum >= 0) {
209 		if (portnum > ca.numports || !ca.ports[portnum]) {
210 			IBWARN("%s: '%s' has no port number %d - max (%d)",
211 			       ((unsigned)ca.node_type <=
212 				IB_NODE_MAX ? node_type_str[ca.node_type] :
213 				"???"), ca_name, portnum, ca.numports);
214 			return -1;
215 		}
216 		printf("%s: '%s'\n",
217 		       ((unsigned)ca.node_type <=
218 			IB_NODE_MAX ? node_type_str[ca.node_type] : "???"),
219 		       ca.ca_name);
220 		port_dump(ca.ports[portnum], 1);
221 		return 0;
222 	}
223 
224 	/* print ca header */
225 	ca_dump(&ca);
226 
227 	if (no_ports)
228 		return 0;
229 
230 	for (portnum = 0; portnum <= ca.numports; portnum++)
231 		port_dump(ca.ports[portnum], 0);
232 
233 	return 0;
234 }
235 
236 static int ports_list(char names[][UMAD_CA_NAME_LEN], int n)
237 {
238 	uint64_t guids[64];
239 	int found, ports, i;
240 
241 	for (i = 0, found = 0; i < n && found < 64; i++) {
242 		if ((ports =
243 		     umad_get_ca_portguids(names[i], guids + found,
244 					   64 - found)) < 0)
245 			return -1;
246 		found += ports;
247 	}
248 
249 	for (i = 0; i < found; i++)
250 		if (guids[i])
251 			printf("0x%016" PRIx64 "\n", ntohll(guids[i]));
252 	return found;
253 }
254 
255 static int list_only, short_format, list_ports;
256 
257 static int process_opt(void *context, int ch, char *optarg)
258 {
259 	switch (ch) {
260 	case 'l':
261 		list_only++;
262 		break;
263 	case 's':
264 		short_format++;
265 		break;
266 	case 'p':
267 		list_ports++;
268 		break;
269 	default:
270 		return -1;
271 	}
272 	return 0;
273 }
274 
275 int main(int argc, char *argv[])
276 {
277 	char names[UMAD_MAX_DEVICES][UMAD_CA_NAME_LEN];
278 	int dev_port = -1;
279 	int n, i;
280 
281 	const struct ibdiag_opt opts[] = {
282 		{"list_of_cas", 'l', 0, NULL, "list all IB devices"},
283 		{"short", 's', 0, NULL, "short output"},
284 		{"port_list", 'p', 0, NULL, "show port list"},
285 		{0}
286 	};
287 	char usage_args[] = "<ca_name> [portnum]";
288 	const char *usage_examples[] = {
289 		"-l       # list all IB devices",
290 		"mthca0 2 # stat port 2 of 'mthca0'",
291 		NULL
292 	};
293 
294 	ibdiag_process_opts(argc, argv, NULL, "CDeGKLPsty", opts, process_opt,
295 			    usage_args, usage_examples);
296 
297 	argc -= optind;
298 	argv += optind;
299 
300 	if (argc > 1)
301 		dev_port = strtol(argv[1], 0, 0);
302 
303 	if (umad_init() < 0)
304 		IBPANIC("can't init UMAD library");
305 
306 	if ((n = umad_get_cas_names(names, UMAD_MAX_DEVICES)) < 0)
307 		IBPANIC("can't list IB device names");
308 
309 	if (argc) {
310 		for (i = 0; i < n; i++)
311 			if (!strncmp(names[i], argv[0], sizeof names[i]))
312 				break;
313 		if (i >= n)
314 			IBPANIC("'%s' IB device can't be found", argv[0]);
315 
316 		strncpy(names[0], argv[0], sizeof(names[0])-1);
317 		names[0][sizeof(names[0])-1] = '\0';
318 		n = 1;
319 	}
320 
321 	if (list_ports) {
322 		if (ports_list(names, n) < 0)
323 			IBPANIC("can't list ports");
324 		return 0;
325 	}
326 
327 	for (i = 0; i < n; i++) {
328 		if (list_only)
329 			printf("%s\n", names[i]);
330 		else if (ca_stat(names[i], dev_port, short_format) < 0)
331 			IBPANIC("stat of IB device '%s' failed", names[i]);
332 	}
333 
334 	return 0;
335 }
336