2 * Copyright (c) 2006 IronPort Systems
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/queue.h>
32 #include <sys/blist.h>
35 #include <sys/filedesc.h>
36 #include <sys/kernel.h>
37 #include <sys/linker.h>
38 #include <sys/malloc.h>
39 #include <sys/mount.h>
40 #include <sys/mutex.h>
42 #include <sys/resourcevar.h>
45 #include <sys/socket.h>
46 #include <sys/vnode.h>
48 #include <sys/pciio.h>
50 #include <dev/pci/pcivar.h>
51 #include <dev/pci/pcireg.h>
57 #include <vm/vm_map.h>
58 #include <vm/vm_param.h>
59 #include <vm/vm_object.h>
60 #include <vm/swap_pager.h>
62 #include <machine/bus.h>
64 #include "opt_compat.h"
65 #ifdef COMPAT_LINUX32 /* XXX */
66 #include <machine/../linux32/linux.h>
68 #include <machine/../linux/linux.h>
70 #include <compat/linux/linux_ioctl.h>
71 #include <compat/linux/linux_mib.h>
72 #include <compat/linux/linux_util.h>
73 #include <fs/pseudofs/pseudofs.h>
75 struct scsi_host_queue {
76 TAILQ_ENTRY(scsi_host_queue) scsi_host_next;
81 TAILQ_HEAD(,scsi_host_queue) scsi_host_q;
83 static int host_number = 0;
88 return (int)strtol(str, (char **)NULL, 10);
92 * Filler function for proc_name
95 linsysfs_scsiname(PFS_FILL_ARGS)
97 struct scsi_host_queue *scsi_host;
100 if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
101 index = atoi(&pn->pn_parent->pn_name[4]);
103 sbuf_printf(sb, "unknown\n");
106 TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
108 sbuf_printf(sb, "%s\n", scsi_host->name);
112 sbuf_printf(sb, "unknown\n");
117 * Filler function for device sym-link
120 linsysfs_link_scsi_host(PFS_FILL_ARGS)
122 struct scsi_host_queue *scsi_host;
125 if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
126 index = atoi(&pn->pn_parent->pn_name[4]);
128 sbuf_printf(sb, "unknown\n");
131 TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
133 sbuf_printf(sb, "../../../devices%s", scsi_host->path);
137 sbuf_printf(sb, "unknown\n");
141 #define PCI_DEV "pci"
143 linsysfs_run_bus(device_t dev, struct pfs_node *dir, struct pfs_node *scsi, char *path,
146 struct scsi_host_queue *scsi_host;
147 struct pfs_node *sub_dir;
149 device_t *children, parent;
151 const char *name = NULL;
152 struct pci_devinfo *dinfo;
153 char *device, *host, *new_path = path;
155 parent = device_get_parent(dev);
157 devclass = device_get_devclass(parent);
158 if (devclass != NULL)
159 name = devclass_get_name(devclass);
160 if (name && strcmp(name, PCI_DEV) == 0) {
161 dinfo = device_get_ivars(dev);
163 device = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
164 new_path = malloc(MAXPATHLEN, M_TEMP,
166 new_path[0] = '\000';
167 strcpy(new_path, path);
168 host = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
170 sprintf(device, "%s:%02x:%02x.%x",
175 strcat(new_path, "/");
176 strcat(new_path, device);
177 dir = pfs_create_dir(dir, device,
178 NULL, NULL, NULL, 0);
180 if (dinfo->cfg.baseclass == PCIC_STORAGE) {
181 /* DJA only make this if needed */
182 sprintf(host, "host%d", host_number++);
183 strcat(new_path, "/");
184 strcat(new_path, host);
185 sub_dir = pfs_create_dir(dir,
186 host, NULL, NULL, NULL, 0);
187 scsi_host = malloc(sizeof(
188 struct scsi_host_queue),
190 scsi_host->path = malloc(
191 strlen(new_path) + 1,
193 scsi_host->path[0] = '\000';
194 bcopy(new_path, scsi_host->path,
195 strlen(new_path) + 1);
196 scsi_host->name = "unknown";
198 sub_dir = pfs_create_dir(scsi, host,
199 NULL, NULL, NULL, 0);
200 pfs_create_link(sub_dir, "device",
201 &linsysfs_link_scsi_host,
202 NULL, NULL, NULL, 0);
203 pfs_create_file(sub_dir, "proc_name",
205 NULL, NULL, NULL, PFS_RD);
207 = linux_driver_get_name_dev(dev);
208 TAILQ_INSERT_TAIL(&scsi_host_q,
209 scsi_host, scsi_host_next);
211 free(device, M_TEMP);
217 device_get_children(dev, &children, &nchildren);
218 for (i = 0; i < nchildren; i++) {
220 linsysfs_run_bus(children[i], dir, scsi, new_path, prefix);
222 if (new_path != path)
223 free(new_path, M_TEMP);
232 linsysfs_init(PFS_INIT_ARGS)
234 struct pfs_node *root;
235 struct pfs_node *dir;
236 struct pfs_node *pci;
237 struct pfs_node *scsi;
241 TAILQ_INIT(&scsi_host_q);
246 scsi = pfs_create_dir(root, "class", NULL, NULL, NULL, 0);
247 scsi = pfs_create_dir(scsi, "scsi_host", NULL, NULL, NULL, 0);
250 dir = pfs_create_dir(root, "devices", NULL, NULL, NULL, 0);
252 /* /sys/device/pci0000:00 */
253 pci = pfs_create_dir(dir, "pci0000:00", NULL, NULL, NULL, 0);
255 devclass = devclass_find("root");
256 if (devclass == NULL) {
260 dev = devclass_get_device(devclass, 0);
261 linsysfs_run_bus(dev, pci, scsi, "/pci0000:00", "0000");
269 linsysfs_uninit(PFS_INIT_ARGS)
271 struct scsi_host_queue *scsi_host, *scsi_host_tmp;
273 TAILQ_FOREACH_SAFE(scsi_host, &scsi_host_q, scsi_host_next,
275 TAILQ_REMOVE(&scsi_host_q, scsi_host, scsi_host_next);
276 free(scsi_host->path, M_TEMP);
277 free(scsi_host, M_TEMP);
283 PSEUDOFS(linsysfs, 1);
284 MODULE_DEPEND(linsysfs, linux, 1, 1, 1);