2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2006 IronPort Systems
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
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>
40 #include <sys/socket.h>
42 #include <sys/pciio.h>
44 #include <dev/pci/pcivar.h>
45 #include <dev/pci/pcireg.h>
48 #include <net/if_var.h>
49 #include <net/if_dl.h>
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>
56 struct scsi_host_queue {
57 TAILQ_ENTRY(scsi_host_queue) scsi_host_next;
62 TAILQ_HEAD(,scsi_host_queue) scsi_host_q;
64 static int host_number = 0;
69 return (int)strtol(str, (char **)NULL, 10);
73 linsysfs_ifnet_addr(PFS_FILL_ARGS)
75 struct l_sockaddr lsa;
78 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
81 if (linux_ifhwaddr(ifp, &lsa) != 0)
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]);
90 linsysfs_ifnet_addrlen(PFS_FILL_ARGS)
93 sbuf_printf(sb, "%d\n", LINUX_IFHWADDRLEN);
98 linsysfs_ifnet_flags(PFS_FILL_ARGS)
101 unsigned short flags;
103 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
106 linux_ifflags(ifp, &flags);
107 sbuf_printf(sb, "0x%x\n", flags);
112 linsysfs_ifnet_ifindex(PFS_FILL_ARGS)
116 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
119 sbuf_printf(sb, "%u\n", ifp->if_index);
124 linsysfs_ifnet_mtu(PFS_FILL_ARGS)
128 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
131 sbuf_printf(sb, "%u\n", ifp->if_mtu);
136 linsysfs_ifnet_tx_queue_len(PFS_FILL_ARGS)
140 sbuf_printf(sb, "1000\n");
145 linsysfs_ifnet_type(PFS_FILL_ARGS)
147 struct l_sockaddr lsa;
150 ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
153 if (linux_ifhwaddr(ifp, &lsa) != 0)
155 sbuf_printf(sb, "%d\n", lsa.sa_family);
160 linsysfs_listnics(struct pfs_node *dir)
162 struct pfs_node *nic;
165 nic = pfs_create_dir(dir, "eth0", NULL, NULL, NULL, 0);
167 pfs_create_file(nic, "address", &linsysfs_ifnet_addr,
168 NULL, NULL, NULL, PFS_RD);
170 pfs_create_file(nic, "addr_len", &linsysfs_ifnet_addrlen,
171 NULL, NULL, NULL, PFS_RD);
173 pfs_create_file(nic, "flags", &linsysfs_ifnet_flags,
174 NULL, NULL, NULL, PFS_RD);
176 pfs_create_file(nic, "ifindex", &linsysfs_ifnet_ifindex,
177 NULL, NULL, NULL, PFS_RD);
179 pfs_create_file(nic, "mtu", &linsysfs_ifnet_mtu,
180 NULL, NULL, NULL, PFS_RD);
182 pfs_create_file(nic, "tx_queue_len", &linsysfs_ifnet_tx_queue_len,
183 NULL, NULL, NULL, PFS_RD);
185 pfs_create_file(nic, "type", &linsysfs_ifnet_type,
186 NULL, NULL, NULL, PFS_RD);
188 lo = pfs_create_dir(dir, "lo", NULL, NULL, NULL, 0);
190 pfs_create_file(lo, "address", &linsysfs_ifnet_addr,
191 NULL, NULL, NULL, PFS_RD);
193 pfs_create_file(lo, "addr_len", &linsysfs_ifnet_addrlen,
194 NULL, NULL, NULL, PFS_RD);
196 pfs_create_file(lo, "flags", &linsysfs_ifnet_flags,
197 NULL, NULL, NULL, PFS_RD);
199 pfs_create_file(lo, "ifindex", &linsysfs_ifnet_ifindex,
200 NULL, NULL, NULL, PFS_RD);
202 pfs_create_file(lo, "mtu", &linsysfs_ifnet_mtu,
203 NULL, NULL, NULL, PFS_RD);
205 pfs_create_file(lo, "tx_queue_len", &linsysfs_ifnet_tx_queue_len,
206 NULL, NULL, NULL, PFS_RD);
208 pfs_create_file(lo, "type", &linsysfs_ifnet_type,
209 NULL, NULL, NULL, PFS_RD);
213 * Filler function for proc_name
216 linsysfs_scsiname(PFS_FILL_ARGS)
218 struct scsi_host_queue *scsi_host;
221 if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
222 index = atoi(&pn->pn_parent->pn_name[4]);
224 sbuf_printf(sb, "unknown\n");
227 TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
229 sbuf_printf(sb, "%s\n", scsi_host->name);
233 sbuf_printf(sb, "unknown\n");
238 * Filler function for device sym-link
241 linsysfs_link_scsi_host(PFS_FILL_ARGS)
243 struct scsi_host_queue *scsi_host;
246 if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
247 index = atoi(&pn->pn_parent->pn_name[4]);
249 sbuf_printf(sb, "unknown\n");
252 TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
254 sbuf_printf(sb, "../../../devices%s", scsi_host->path);
258 sbuf_printf(sb, "unknown\n");
263 linsysfs_fill_data(PFS_FILL_ARGS)
265 sbuf_printf(sb, "%s", (char *)pn->pn_data);
270 linsysfs_fill_vendor(PFS_FILL_ARGS)
272 sbuf_printf(sb, "0x%04x\n", pci_get_vendor((device_t)pn->pn_data));
277 linsysfs_fill_device(PFS_FILL_ARGS)
279 sbuf_printf(sb, "0x%04x\n", pci_get_device((device_t)pn->pn_data));
284 linsysfs_fill_subvendor(PFS_FILL_ARGS)
286 sbuf_printf(sb, "0x%04x\n", pci_get_subvendor((device_t)pn->pn_data));
291 linsysfs_fill_subdevice(PFS_FILL_ARGS)
293 sbuf_printf(sb, "0x%04x\n", pci_get_subdevice((device_t)pn->pn_data));
298 linsysfs_fill_revid(PFS_FILL_ARGS)
300 sbuf_printf(sb, "0x%x\n", pci_get_revid((device_t)pn->pn_data));
305 linsysfs_fill_config(PFS_FILL_ARGS)
311 dev = (device_t)pn->pn_data;
312 bzero(config, sizeof(config));
313 reg = pci_get_vendor(dev);
315 config[1] = reg >> 8;
316 reg = pci_get_device(dev);
318 config[3] = reg >> 8;
319 reg = pci_get_revid(dev);
321 reg = pci_get_subvendor(dev);
323 config[45] = reg >> 8;
324 reg = pci_get_subdevice(dev);
326 config[47] = reg >> 8;
327 sbuf_bcat(sb, config, sizeof(config));
332 * Filler function for PCI uevent file
335 linsysfs_fill_uevent_pci(PFS_FILL_ARGS)
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));
350 * Filler function for drm uevent file
353 linsysfs_fill_uevent_drm(PFS_FILL_ARGS)
358 dev = (device_t)pn->pn_data;
359 unit = device_get_unit(dev);
361 "MAJOR=226\nMINOR=%d\nDEVNAME=dri/card%d\nDEVTYPE=dri_minor\n",
367 get_full_pfs_path(struct pfs_node *cur)
371 temp = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
372 path = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
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);
381 path[strlen(path) - 1] = '\0'; /* remove extra slash */
387 * Filler function for symlink from drm char device to PCI device
390 linsysfs_fill_vgapci(PFS_FILL_ARGS)
394 path = get_full_pfs_path((struct pfs_node*)pn->pn_data);
395 sbuf_printf(sb, "../../../%s", path);
401 #define PCI_DEV "pci"
402 #define DRMN_DEV "drmn"
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)
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;
412 const char *name = NULL;
413 struct pci_devinfo *dinfo;
414 char *device, *host, *new_path, *devname;
417 devname = malloc(16, M_TEMP, M_WAITOK);
419 parent = device_get_parent(dev);
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);
427 device = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
428 new_path = malloc(MAXPATHLEN, M_TEMP,
430 new_path[0] = '\000';
431 strcpy(new_path, path);
432 host = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
434 sprintf(device, "%s:%02x:%02x.%x",
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,
446 cur_file->pn_data = (void*)dev;
447 cur_file = pfs_create_file(dir, "device",
448 &linsysfs_fill_device, NULL, NULL, NULL,
450 cur_file->pn_data = (void*)dev;
451 cur_file = pfs_create_file(dir,
453 &linsysfs_fill_subvendor, NULL, NULL, NULL,
455 cur_file->pn_data = (void*)dev;
456 cur_file = pfs_create_file(dir,
458 &linsysfs_fill_subdevice, NULL, NULL, NULL,
460 cur_file->pn_data = (void*)dev;
461 cur_file = pfs_create_file(dir, "revision",
462 &linsysfs_fill_revid, NULL, NULL, NULL,
464 cur_file->pn_data = (void*)dev;
465 cur_file = pfs_create_file(dir, "config",
466 &linsysfs_fill_config, NULL, NULL, NULL,
468 cur_file->pn_data = (void*)dev;
469 cur_file = pfs_create_file(dir, "uevent",
470 &linsysfs_fill_uevent_pci, NULL, NULL,
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";
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),
488 scsi_host->path = malloc(
489 strlen(new_path) + 1,
491 scsi_host->path[0] = '\000';
492 bcopy(new_path, scsi_host->path,
493 strlen(new_path) + 1);
494 scsi_host->name = "unknown";
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",
503 NULL, NULL, NULL, PFS_RD);
505 = linux_driver_get_name_dev(dev);
506 TAILQ_INSERT_TAIL(&scsi_host_q,
507 scsi_host, scsi_host_next);
509 free(device, M_TEMP);
514 devclass = device_get_devclass(dev);
515 if (devclass != NULL)
516 name = devclass_get_name(devclass);
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,
530 cur_file->pn_data = (void*)dir;
531 cur_file = pfs_create_file(sub_dir,
532 "uevent", &linsysfs_fill_uevent_drm, NULL,
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,
542 cur_file->pn_data = (void*)dir;
547 error = device_get_children(dev, &children, &nchildren);
549 for (i = 0; i < nchildren; i++)
551 linsysfs_run_bus(children[i], dir, scsi,
552 chardev, drm, new_path, prefix);
553 free(children, M_TEMP);
555 if (new_path != path)
556 free(new_path, M_TEMP);
557 free(devname, M_TEMP);
563 * Filler function for sys/devices/system/cpu/{online,possible,present}
566 linsysfs_cpuonline(PFS_FILL_ARGS)
569 sbuf_printf(sb, "%d-%d\n", CPU_FIRST(), mp_maxid);
574 * Filler function for sys/devices/system/cpu/cpuX/online
577 linsysfs_cpuxonline(PFS_FILL_ARGS)
580 sbuf_printf(sb, "1\n");
585 linsysfs_listcpus(struct pfs_node *dir)
587 struct pfs_node *cpu;
597 len += sizeof("cpu");
598 name = malloc(len, M_TEMP, M_WAITOK);
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);
605 pfs_create_file(cpu, "online", &linsysfs_cpuxonline,
606 NULL, NULL, NULL, PFS_RD);
615 linsysfs_init(PFS_INIT_ARGS)
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;
628 TAILQ_INIT(&scsi_host_q);
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);
637 /* /sys/class/net/.. */
638 net = pfs_create_dir(class, "net", NULL, NULL, NULL, 0);
641 devdir = pfs_create_dir(root, "dev", NULL, NULL, NULL, 0);
642 chardev = pfs_create_dir(devdir, "char", NULL, NULL, NULL, 0);
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);
648 devclass = devclass_find("root");
649 if (devclass == NULL) {
653 dev = devclass_get_device(devclass, 0);
654 linsysfs_run_bus(dev, pci, scsi, chardev, drm, "/pci0000:00", "0000");
656 /* /sys/devices/system */
657 sys = pfs_create_dir(dir, "system", NULL, NULL, NULL, 0);
659 /* /sys/devices/system/cpu */
660 cpu = pfs_create_dir(sys, "cpu", NULL, NULL, NULL, 0);
662 pfs_create_file(cpu, "online", &linsysfs_cpuonline,
663 NULL, NULL, NULL, PFS_RD);
664 pfs_create_file(cpu, "possible", &linsysfs_cpuonline,
665 NULL, NULL, NULL, PFS_RD);
666 pfs_create_file(cpu, "present", &linsysfs_cpuonline,
667 NULL, NULL, NULL, PFS_RD);
669 linsysfs_listcpus(cpu);
670 linsysfs_listnics(net);
679 linsysfs_uninit(PFS_INIT_ARGS)
681 struct scsi_host_queue *scsi_host, *scsi_host_tmp;
683 TAILQ_FOREACH_SAFE(scsi_host, &scsi_host_q, scsi_host_next,
685 TAILQ_REMOVE(&scsi_host_q, scsi_host, scsi_host_next);
686 free(scsi_host->path, M_TEMP);
687 free(scsi_host, M_TEMP);
693 PSEUDOFS(linsysfs, 1, VFCF_JAIL);
694 #if defined(__aarch64__) || defined(__amd64__)
695 MODULE_DEPEND(linsysfs, linux_common, 1, 1, 1);
697 MODULE_DEPEND(linsysfs, linux, 1, 1, 1);