1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006 IronPort Systems
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/ctype.h>
35 #include <sys/kernel.h>
36 #include <sys/malloc.h>
37 #include <sys/mount.h>
38 #include <sys/sbuf.h>
39 #include <sys/smp.h>
40 #include <sys/socket.h>
41 #include <sys/bus.h>
42 #include <sys/pciio.h>
43
44 #include <dev/pci/pcivar.h>
45 #include <dev/pci/pcireg.h>
46
47 #include <net/if.h>
48 #include <net/if_var.h>
49 #include <net/if_dl.h>
50
51 #include <compat/linux/linux.h>
52 #include <compat/linux/linux_common.h>
53 #include <compat/linux/linux_util.h>
54 #include <fs/pseudofs/pseudofs.h>
55
56 struct scsi_host_queue {
57 TAILQ_ENTRY(scsi_host_queue) scsi_host_next;
58 char *path;
59 char *name;
60 };
61
62 TAILQ_HEAD(,scsi_host_queue) scsi_host_q;
63
64 static int host_number = 0;
65
66 static int
atoi(const char * str)67 atoi(const char *str)
68 {
69 return (int)strtol(str, (char **)NULL, 10);
70 }
71
72 static int
linsysfs_ifnet_addr(PFS_FILL_ARGS)73 linsysfs_ifnet_addr(PFS_FILL_ARGS)
74 {
75 struct l_sockaddr lsa;
76 struct ifnet *ifp;
77
78 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
79 if (ifp == NULL)
80 return (ENOENT);
81 if (linux_ifhwaddr(ifp, &lsa) != 0)
82 return (ENOENT);
83 sbuf_printf(sb, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
84 lsa.sa_data[0], lsa.sa_data[1], lsa.sa_data[2],
85 lsa.sa_data[3], lsa.sa_data[4], lsa.sa_data[5]);
86 return (0);
87 }
88
89 static int
linsysfs_ifnet_addrlen(PFS_FILL_ARGS)90 linsysfs_ifnet_addrlen(PFS_FILL_ARGS)
91 {
92
93 sbuf_printf(sb, "%d\n", LINUX_IFHWADDRLEN);
94 return (0);
95 }
96
97 static int
linsysfs_ifnet_flags(PFS_FILL_ARGS)98 linsysfs_ifnet_flags(PFS_FILL_ARGS)
99 {
100 struct ifnet *ifp;
101 unsigned short flags;
102
103 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
104 if (ifp == NULL)
105 return (ENOENT);
106 linux_ifflags(ifp, &flags);
107 sbuf_printf(sb, "0x%x\n", flags);
108 return (0);
109 }
110
111 static int
linsysfs_ifnet_ifindex(PFS_FILL_ARGS)112 linsysfs_ifnet_ifindex(PFS_FILL_ARGS)
113 {
114 struct ifnet *ifp;
115
116 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
117 if (ifp == NULL)
118 return (ENOENT);
119 sbuf_printf(sb, "%u\n", ifp->if_index);
120 return (0);
121 }
122
123 static int
linsysfs_ifnet_mtu(PFS_FILL_ARGS)124 linsysfs_ifnet_mtu(PFS_FILL_ARGS)
125 {
126 struct ifnet *ifp;
127
128 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
129 if (ifp == NULL)
130 return (ENOENT);
131 sbuf_printf(sb, "%u\n", ifp->if_mtu);
132 return (0);
133 }
134
135 static int
linsysfs_ifnet_tx_queue_len(PFS_FILL_ARGS)136 linsysfs_ifnet_tx_queue_len(PFS_FILL_ARGS)
137 {
138
139 /* XXX */
140 sbuf_printf(sb, "1000\n");
141 return (0);
142 }
143
144 static int
linsysfs_ifnet_type(PFS_FILL_ARGS)145 linsysfs_ifnet_type(PFS_FILL_ARGS)
146 {
147 struct l_sockaddr lsa;
148 struct ifnet *ifp;
149
150 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
151 if (ifp == NULL)
152 return (ENOENT);
153 if (linux_ifhwaddr(ifp, &lsa) != 0)
154 return (ENOENT);
155 sbuf_printf(sb, "%d\n", lsa.sa_family);
156 return (0);
157 }
158
159 static void
linsysfs_listnics(struct pfs_node * dir)160 linsysfs_listnics(struct pfs_node *dir)
161 {
162 struct pfs_node *nic;
163 struct pfs_node *lo;
164
165 nic = pfs_create_dir(dir, "eth0", NULL, NULL, NULL, 0);
166
167 pfs_create_file(nic, "address", &linsysfs_ifnet_addr,
168 NULL, NULL, NULL, PFS_RD);
169
170 pfs_create_file(nic, "addr_len", &linsysfs_ifnet_addrlen,
171 NULL, NULL, NULL, PFS_RD);
172
173 pfs_create_file(nic, "flags", &linsysfs_ifnet_flags,
174 NULL, NULL, NULL, PFS_RD);
175
176 pfs_create_file(nic, "ifindex", &linsysfs_ifnet_ifindex,
177 NULL, NULL, NULL, PFS_RD);
178
179 pfs_create_file(nic, "mtu", &linsysfs_ifnet_mtu,
180 NULL, NULL, NULL, PFS_RD);
181
182 pfs_create_file(nic, "tx_queue_len", &linsysfs_ifnet_tx_queue_len,
183 NULL, NULL, NULL, PFS_RD);
184
185 pfs_create_file(nic, "type", &linsysfs_ifnet_type,
186 NULL, NULL, NULL, PFS_RD);
187
188 lo = pfs_create_dir(dir, "lo", NULL, NULL, NULL, 0);
189
190 pfs_create_file(lo, "address", &linsysfs_ifnet_addr,
191 NULL, NULL, NULL, PFS_RD);
192
193 pfs_create_file(lo, "addr_len", &linsysfs_ifnet_addrlen,
194 NULL, NULL, NULL, PFS_RD);
195
196 pfs_create_file(lo, "flags", &linsysfs_ifnet_flags,
197 NULL, NULL, NULL, PFS_RD);
198
199 pfs_create_file(lo, "ifindex", &linsysfs_ifnet_ifindex,
200 NULL, NULL, NULL, PFS_RD);
201
202 pfs_create_file(lo, "mtu", &linsysfs_ifnet_mtu,
203 NULL, NULL, NULL, PFS_RD);
204
205 pfs_create_file(lo, "tx_queue_len", &linsysfs_ifnet_tx_queue_len,
206 NULL, NULL, NULL, PFS_RD);
207
208 pfs_create_file(lo, "type", &linsysfs_ifnet_type,
209 NULL, NULL, NULL, PFS_RD);
210 }
211
212 /*
213 * Filler function for proc_name
214 */
215 static int
linsysfs_scsiname(PFS_FILL_ARGS)216 linsysfs_scsiname(PFS_FILL_ARGS)
217 {
218 struct scsi_host_queue *scsi_host;
219 int index;
220
221 if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
222 index = atoi(&pn->pn_parent->pn_name[4]);
223 } else {
224 sbuf_printf(sb, "unknown\n");
225 return (0);
226 }
227 TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
228 if (index-- == 0) {
229 sbuf_printf(sb, "%s\n", scsi_host->name);
230 return (0);
231 }
232 }
233 sbuf_printf(sb, "unknown\n");
234 return (0);
235 }
236
237 /*
238 * Filler function for device sym-link
239 */
240 static int
linsysfs_link_scsi_host(PFS_FILL_ARGS)241 linsysfs_link_scsi_host(PFS_FILL_ARGS)
242 {
243 struct scsi_host_queue *scsi_host;
244 int index;
245
246 if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
247 index = atoi(&pn->pn_parent->pn_name[4]);
248 } else {
249 sbuf_printf(sb, "unknown\n");
250 return (0);
251 }
252 TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
253 if (index-- == 0) {
254 sbuf_printf(sb, "../../../devices%s", scsi_host->path);
255 return(0);
256 }
257 }
258 sbuf_printf(sb, "unknown\n");
259 return (0);
260 }
261
262 static int
linsysfs_fill_data(PFS_FILL_ARGS)263 linsysfs_fill_data(PFS_FILL_ARGS)
264 {
265 sbuf_printf(sb, "%s", (char *)pn->pn_data);
266 return (0);
267 }
268
269 static int
linsysfs_fill_vendor(PFS_FILL_ARGS)270 linsysfs_fill_vendor(PFS_FILL_ARGS)
271 {
272 sbuf_printf(sb, "0x%04x\n", pci_get_vendor((device_t)pn->pn_data));
273 return (0);
274 }
275
276 static int
linsysfs_fill_device(PFS_FILL_ARGS)277 linsysfs_fill_device(PFS_FILL_ARGS)
278 {
279 sbuf_printf(sb, "0x%04x\n", pci_get_device((device_t)pn->pn_data));
280 return (0);
281 }
282
283 static int
linsysfs_fill_subvendor(PFS_FILL_ARGS)284 linsysfs_fill_subvendor(PFS_FILL_ARGS)
285 {
286 sbuf_printf(sb, "0x%04x\n", pci_get_subvendor((device_t)pn->pn_data));
287 return (0);
288 }
289
290 static int
linsysfs_fill_subdevice(PFS_FILL_ARGS)291 linsysfs_fill_subdevice(PFS_FILL_ARGS)
292 {
293 sbuf_printf(sb, "0x%04x\n", pci_get_subdevice((device_t)pn->pn_data));
294 return (0);
295 }
296
297 static int
linsysfs_fill_revid(PFS_FILL_ARGS)298 linsysfs_fill_revid(PFS_FILL_ARGS)
299 {
300 sbuf_printf(sb, "0x%x\n", pci_get_revid((device_t)pn->pn_data));
301 return (0);
302 }
303
304 static int
linsysfs_fill_config(PFS_FILL_ARGS)305 linsysfs_fill_config(PFS_FILL_ARGS)
306 {
307 uint8_t config[48];
308 device_t dev;
309 uint32_t reg;
310
311 dev = (device_t)pn->pn_data;
312 bzero(config, sizeof(config));
313 reg = pci_get_vendor(dev);
314 config[0] = reg;
315 config[1] = reg >> 8;
316 reg = pci_get_device(dev);
317 config[2] = reg;
318 config[3] = reg >> 8;
319 reg = pci_get_revid(dev);
320 config[8] = reg;
321 reg = pci_get_subvendor(dev);
322 config[44] = reg;
323 config[45] = reg >> 8;
324 reg = pci_get_subdevice(dev);
325 config[46] = reg;
326 config[47] = reg >> 8;
327 sbuf_bcat(sb, config, sizeof(config));
328 return (0);
329 }
330
331 /*
332 * Filler function for PCI uevent file
333 */
334 static int
linsysfs_fill_uevent_pci(PFS_FILL_ARGS)335 linsysfs_fill_uevent_pci(PFS_FILL_ARGS)
336 {
337 device_t dev;
338
339 dev = (device_t)pn->pn_data;
340 sbuf_printf(sb, "DRIVER=%s\nPCI_CLASS=%X\nPCI_ID=%04X:%04X\n"
341 "PCI_SUBSYS_ID=%04X:%04X\nPCI_SLOT_NAME=%04d:%02x:%02x.%x\n",
342 linux_driver_get_name_dev(dev), pci_get_class(dev),
343 pci_get_vendor(dev), pci_get_device(dev), pci_get_subvendor(dev),
344 pci_get_subdevice(dev), pci_get_domain(dev), pci_get_bus(dev),
345 pci_get_slot(dev), pci_get_function(dev));
346 return (0);
347 }
348
349 /*
350 * Filler function for drm uevent file
351 */
352 static int
linsysfs_fill_uevent_drm(PFS_FILL_ARGS)353 linsysfs_fill_uevent_drm(PFS_FILL_ARGS)
354 {
355 device_t dev;
356 int unit;
357
358 dev = (device_t)pn->pn_data;
359 unit = device_get_unit(dev);
360 sbuf_printf(sb,
361 "MAJOR=226\nMINOR=%d\nDEVNAME=dri/card%d\nDEVTYPE=dri_minor\n",
362 unit, unit);
363 return (0);
364 }
365
366 static char *
get_full_pfs_path(struct pfs_node * cur)367 get_full_pfs_path(struct pfs_node *cur)
368 {
369 char *temp, *path;
370
371 temp = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
372 path = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
373 path[0] = '\0';
374
375 do {
376 snprintf(temp, MAXPATHLEN, "%s/%s", cur->pn_name, path);
377 strlcpy(path, temp, MAXPATHLEN);
378 cur = cur->pn_parent;
379 } while (cur->pn_parent != NULL);
380
381 path[strlen(path) - 1] = '\0'; /* remove extra slash */
382 free(temp, M_TEMP);
383 return (path);
384 }
385
386 /*
387 * Filler function for symlink from drm char device to PCI device
388 */
389 static int
linsysfs_fill_vgapci(PFS_FILL_ARGS)390 linsysfs_fill_vgapci(PFS_FILL_ARGS)
391 {
392 char *path;
393
394 path = get_full_pfs_path((struct pfs_node*)pn->pn_data);
395 sbuf_printf(sb, "../../../%s", path);
396 free(path, M_TEMP);
397 return (0);
398 }
399
400 #undef PCI_DEV
401 #define PCI_DEV "pci"
402 #define DRMN_DEV "drmn"
403 static int
linsysfs_run_bus(device_t dev,struct pfs_node * dir,struct pfs_node * scsi,struct pfs_node * chardev,struct pfs_node * drm,char * path,char * prefix)404 linsysfs_run_bus(device_t dev, struct pfs_node *dir, struct pfs_node *scsi,
405 struct pfs_node *chardev, struct pfs_node *drm, char *path, char *prefix)
406 {
407 struct scsi_host_queue *scsi_host;
408 struct pfs_node *sub_dir, *cur_file;
409 int i, nchildren, error;
410 device_t *children, parent;
411 devclass_t devclass;
412 const char *name = NULL;
413 struct pci_devinfo *dinfo;
414 char *device, *host, *new_path, *devname;
415
416 new_path = path;
417 devname = malloc(16, M_TEMP, M_WAITOK);
418
419 parent = device_get_parent(dev);
420 if (parent) {
421 devclass = device_get_devclass(parent);
422 if (devclass != NULL)
423 name = devclass_get_name(devclass);
424 if (name && strcmp(name, PCI_DEV) == 0) {
425 dinfo = device_get_ivars(dev);
426 if (dinfo) {
427 device = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
428 new_path = malloc(MAXPATHLEN, M_TEMP,
429 M_WAITOK);
430 new_path[0] = '\000';
431 strcpy(new_path, path);
432 host = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
433 device[0] = '\000';
434 sprintf(device, "%s:%02x:%02x.%x",
435 prefix,
436 dinfo->cfg.bus,
437 dinfo->cfg.slot,
438 dinfo->cfg.func);
439 strcat(new_path, "/");
440 strcat(new_path, device);
441 dir = pfs_create_dir(dir, device,
442 NULL, NULL, NULL, 0);
443 cur_file = pfs_create_file(dir, "vendor",
444 &linsysfs_fill_vendor, NULL, NULL, NULL,
445 PFS_RD);
446 cur_file->pn_data = (void*)dev;
447 cur_file = pfs_create_file(dir, "device",
448 &linsysfs_fill_device, NULL, NULL, NULL,
449 PFS_RD);
450 cur_file->pn_data = (void*)dev;
451 cur_file = pfs_create_file(dir,
452 "subsystem_vendor",
453 &linsysfs_fill_subvendor, NULL, NULL, NULL,
454 PFS_RD);
455 cur_file->pn_data = (void*)dev;
456 cur_file = pfs_create_file(dir,
457 "subsystem_device",
458 &linsysfs_fill_subdevice, NULL, NULL, NULL,
459 PFS_RD);
460 cur_file->pn_data = (void*)dev;
461 cur_file = pfs_create_file(dir, "revision",
462 &linsysfs_fill_revid, NULL, NULL, NULL,
463 PFS_RD);
464 cur_file->pn_data = (void*)dev;
465 cur_file = pfs_create_file(dir, "config",
466 &linsysfs_fill_config, NULL, NULL, NULL,
467 PFS_RD);
468 cur_file->pn_data = (void*)dev;
469 cur_file = pfs_create_file(dir, "uevent",
470 &linsysfs_fill_uevent_pci, NULL, NULL,
471 NULL, PFS_RD);
472 cur_file->pn_data = (void*)dev;
473 cur_file = pfs_create_link(dir, "subsystem",
474 &linsysfs_fill_data, NULL, NULL, NULL, 0);
475 /* libdrm just checks that the link ends in "/pci" */
476 cur_file->pn_data = "/sys/bus/pci";
477
478 if (dinfo->cfg.baseclass == PCIC_STORAGE) {
479 /* DJA only make this if needed */
480 sprintf(host, "host%d", host_number++);
481 strcat(new_path, "/");
482 strcat(new_path, host);
483 pfs_create_dir(dir, host,
484 NULL, NULL, NULL, 0);
485 scsi_host = malloc(sizeof(
486 struct scsi_host_queue),
487 M_DEVBUF, M_NOWAIT);
488 scsi_host->path = malloc(
489 strlen(new_path) + 1,
490 M_DEVBUF, M_NOWAIT);
491 scsi_host->path[0] = '\000';
492 bcopy(new_path, scsi_host->path,
493 strlen(new_path) + 1);
494 scsi_host->name = "unknown";
495
496 sub_dir = pfs_create_dir(scsi, host,
497 NULL, NULL, NULL, 0);
498 pfs_create_link(sub_dir, "device",
499 &linsysfs_link_scsi_host,
500 NULL, NULL, NULL, 0);
501 pfs_create_file(sub_dir, "proc_name",
502 &linsysfs_scsiname,
503 NULL, NULL, NULL, PFS_RD);
504 scsi_host->name
505 = linux_driver_get_name_dev(dev);
506 TAILQ_INSERT_TAIL(&scsi_host_q,
507 scsi_host, scsi_host_next);
508 }
509 free(device, M_TEMP);
510 free(host, M_TEMP);
511 }
512 }
513
514 devclass = device_get_devclass(dev);
515 if (devclass != NULL)
516 name = devclass_get_name(devclass);
517 else
518 name = NULL;
519 if (name != NULL && strcmp(name, DRMN_DEV) == 0 &&
520 device_get_unit(dev) >= 0) {
521 dinfo = device_get_ivars(parent);
522 if (dinfo != NULL && dinfo->cfg.baseclass == PCIC_DISPLAY) {
523 sprintf(devname, "226:%d",
524 device_get_unit(dev));
525 sub_dir = pfs_create_dir(chardev,
526 devname, NULL, NULL, NULL, 0);
527 cur_file = pfs_create_link(sub_dir,
528 "device", &linsysfs_fill_vgapci, NULL,
529 NULL, NULL, PFS_RD);
530 cur_file->pn_data = (void*)dir;
531 cur_file = pfs_create_file(sub_dir,
532 "uevent", &linsysfs_fill_uevent_drm, NULL,
533 NULL, NULL, PFS_RD);
534 cur_file->pn_data = (void*)dev;
535 sprintf(devname, "card%d",
536 device_get_unit(dev));
537 sub_dir = pfs_create_dir(drm,
538 devname, NULL, NULL, NULL, 0);
539 cur_file = pfs_create_link(sub_dir,
540 "device", &linsysfs_fill_vgapci, NULL,
541 NULL, NULL, PFS_RD);
542 cur_file->pn_data = (void*)dir;
543 }
544 }
545 }
546
547 error = device_get_children(dev, &children, &nchildren);
548 if (error == 0) {
549 for (i = 0; i < nchildren; i++)
550 if (children[i])
551 linsysfs_run_bus(children[i], dir, scsi,
552 chardev, drm, new_path, prefix);
553 free(children, M_TEMP);
554 }
555 if (new_path != path)
556 free(new_path, M_TEMP);
557 free(devname, M_TEMP);
558
559 return (1);
560 }
561
562 /*
563 * Filler function for sys/devices/system/cpu/online
564 */
565 static int
linsysfs_cpuonline(PFS_FILL_ARGS)566 linsysfs_cpuonline(PFS_FILL_ARGS)
567 {
568
569 sbuf_printf(sb, "%d-%d\n", CPU_FIRST(), mp_maxid);
570 return (0);
571 }
572
573 /*
574 * Filler function for sys/devices/system/cpu/cpuX/online
575 */
576 static int
linsysfs_cpuxonline(PFS_FILL_ARGS)577 linsysfs_cpuxonline(PFS_FILL_ARGS)
578 {
579
580 sbuf_printf(sb, "1\n");
581 return (0);
582 }
583
584 static void
linsysfs_listcpus(struct pfs_node * dir)585 linsysfs_listcpus(struct pfs_node *dir)
586 {
587 struct pfs_node *cpu;
588 char *name;
589 int i, count, len;
590
591 len = 1;
592 count = mp_maxcpus;
593 while (count > 10) {
594 count /= 10;
595 len++;
596 }
597 len += sizeof("cpu");
598 name = malloc(len, M_TEMP, M_WAITOK);
599
600 for (i = 0; i < mp_ncpus; ++i) {
601 /* /sys/devices/system/cpu/cpuX */
602 sprintf(name, "cpu%d", i);
603 cpu = pfs_create_dir(dir, name, NULL, NULL, NULL, 0);
604
605 pfs_create_file(cpu, "online", &linsysfs_cpuxonline,
606 NULL, NULL, NULL, PFS_RD);
607 }
608 free(name, M_TEMP);
609 }
610
611 /*
612 * Constructor
613 */
614 static int
linsysfs_init(PFS_INIT_ARGS)615 linsysfs_init(PFS_INIT_ARGS)
616 {
617 struct pfs_node *root;
618 struct pfs_node *class;
619 struct pfs_node *dir, *sys, *cpu;
620 struct pfs_node *drm;
621 struct pfs_node *pci;
622 struct pfs_node *scsi;
623 struct pfs_node *net;
624 struct pfs_node *devdir, *chardev;
625 devclass_t devclass;
626 device_t dev;
627
628 TAILQ_INIT(&scsi_host_q);
629
630 root = pi->pi_root;
631
632 /* /sys/class/... */
633 class = pfs_create_dir(root, "class", NULL, NULL, NULL, 0);
634 scsi = pfs_create_dir(class, "scsi_host", NULL, NULL, NULL, 0);
635 drm = pfs_create_dir(class, "drm", NULL, NULL, NULL, 0);
636
637 /* /sys/class/net/.. */
638 net = pfs_create_dir(class, "net", NULL, NULL, NULL, 0);
639
640 /* /sys/dev/... */
641 devdir = pfs_create_dir(root, "dev", NULL, NULL, NULL, 0);
642 chardev = pfs_create_dir(devdir, "char", NULL, NULL, NULL, 0);
643
644 /* /sys/devices/... */
645 dir = pfs_create_dir(root, "devices", NULL, NULL, NULL, 0);
646 pci = pfs_create_dir(dir, "pci0000:00", NULL, NULL, NULL, 0);
647
648 devclass = devclass_find("root");
649 if (devclass == NULL) {
650 return (0);
651 }
652
653 dev = devclass_get_device(devclass, 0);
654 linsysfs_run_bus(dev, pci, scsi, chardev, drm, "/pci0000:00", "0000");
655
656 /* /sys/devices/system */
657 sys = pfs_create_dir(dir, "system", NULL, NULL, NULL, 0);
658
659 /* /sys/devices/system/cpu */
660 cpu = pfs_create_dir(sys, "cpu", NULL, NULL, NULL, 0);
661
662 pfs_create_file(cpu, "online", &linsysfs_cpuonline,
663 NULL, NULL, NULL, PFS_RD);
664
665 linsysfs_listcpus(cpu);
666 linsysfs_listnics(net);
667
668 return (0);
669 }
670
671 /*
672 * Destructor
673 */
674 static int
linsysfs_uninit(PFS_INIT_ARGS)675 linsysfs_uninit(PFS_INIT_ARGS)
676 {
677 struct scsi_host_queue *scsi_host, *scsi_host_tmp;
678
679 TAILQ_FOREACH_SAFE(scsi_host, &scsi_host_q, scsi_host_next,
680 scsi_host_tmp) {
681 TAILQ_REMOVE(&scsi_host_q, scsi_host, scsi_host_next);
682 free(scsi_host->path, M_TEMP);
683 free(scsi_host, M_TEMP);
684 }
685
686 return (0);
687 }
688
689 PSEUDOFS(linsysfs, 1, VFCF_JAIL);
690 #if defined(__aarch64__) || defined(__amd64__)
691 MODULE_DEPEND(linsysfs, linux_common, 1, 1, 1);
692 #else
693 MODULE_DEPEND(linsysfs, linux, 1, 1, 1);
694 #endif
695