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/systm.h>
32 #include <sys/queue.h>
33 #include <sys/blist.h>
36 #include <sys/filedesc.h>
37 #include <sys/kernel.h>
38 #include <sys/linker.h>
39 #include <sys/malloc.h>
40 #include <sys/mount.h>
41 #include <sys/mutex.h>
43 #include <sys/resourcevar.h>
46 #include <sys/socket.h>
47 #include <sys/vnode.h>
49 #include <sys/pciio.h>
51 #include <dev/pci/pcivar.h>
52 #include <dev/pci/pcireg.h>
58 #include <vm/vm_map.h>
59 #include <vm/vm_param.h>
60 #include <vm/vm_object.h>
61 #include <vm/swap_pager.h>
63 #include <machine/bus.h>
65 #include <compat/linux/linux_ioctl.h>
66 #include <compat/linux/linux_mib.h>
67 #include <compat/linux/linux_util.h>
68 #include <fs/pseudofs/pseudofs.h>
70 struct scsi_host_queue {
71 TAILQ_ENTRY(scsi_host_queue) scsi_host_next;
76 TAILQ_HEAD(,scsi_host_queue) scsi_host_q;
78 static int host_number = 0;
83 return (int)strtol(str, (char **)NULL, 10);
87 * Filler function for proc_name
90 linsysfs_scsiname(PFS_FILL_ARGS)
92 struct scsi_host_queue *scsi_host;
95 if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
96 index = atoi(&pn->pn_parent->pn_name[4]);
98 sbuf_printf(sb, "unknown\n");
101 TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
103 sbuf_printf(sb, "%s\n", scsi_host->name);
107 sbuf_printf(sb, "unknown\n");
112 * Filler function for device sym-link
115 linsysfs_link_scsi_host(PFS_FILL_ARGS)
117 struct scsi_host_queue *scsi_host;
120 if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
121 index = atoi(&pn->pn_parent->pn_name[4]);
123 sbuf_printf(sb, "unknown\n");
126 TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
128 sbuf_printf(sb, "../../../devices%s", scsi_host->path);
132 sbuf_printf(sb, "unknown\n");
136 #define PCI_DEV "pci"
138 linsysfs_run_bus(device_t dev, struct pfs_node *dir, struct pfs_node *scsi, char *path,
141 struct scsi_host_queue *scsi_host;
142 struct pfs_node *sub_dir;
144 device_t *children, parent;
146 const char *name = NULL;
147 struct pci_devinfo *dinfo;
148 char *device, *host, *new_path = path;
150 parent = device_get_parent(dev);
152 devclass = device_get_devclass(parent);
153 if (devclass != NULL)
154 name = devclass_get_name(devclass);
155 if (name && strcmp(name, PCI_DEV) == 0) {
156 dinfo = device_get_ivars(dev);
158 device = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
159 new_path = malloc(MAXPATHLEN, M_TEMP,
161 new_path[0] = '\000';
162 strcpy(new_path, path);
163 host = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
165 sprintf(device, "%s:%02x:%02x.%x",
170 strcat(new_path, "/");
171 strcat(new_path, device);
172 dir = pfs_create_dir(dir, device,
173 NULL, NULL, NULL, 0);
175 if (dinfo->cfg.baseclass == PCIC_STORAGE) {
176 /* DJA only make this if needed */
177 sprintf(host, "host%d", host_number++);
178 strcat(new_path, "/");
179 strcat(new_path, host);
180 pfs_create_dir(dir, host,
181 NULL, NULL, NULL, 0);
182 scsi_host = malloc(sizeof(
183 struct scsi_host_queue),
185 scsi_host->path = malloc(
186 strlen(new_path) + 1,
188 scsi_host->path[0] = '\000';
189 bcopy(new_path, scsi_host->path,
190 strlen(new_path) + 1);
191 scsi_host->name = "unknown";
193 sub_dir = pfs_create_dir(scsi, host,
194 NULL, NULL, NULL, 0);
195 pfs_create_link(sub_dir, "device",
196 &linsysfs_link_scsi_host,
197 NULL, NULL, NULL, 0);
198 pfs_create_file(sub_dir, "proc_name",
200 NULL, NULL, NULL, PFS_RD);
202 = linux_driver_get_name_dev(dev);
203 TAILQ_INSERT_TAIL(&scsi_host_q,
204 scsi_host, scsi_host_next);
206 free(device, M_TEMP);
212 device_get_children(dev, &children, &nchildren);
213 for (i = 0; i < nchildren; i++) {
215 linsysfs_run_bus(children[i], dir, scsi, new_path, prefix);
217 if (new_path != path)
218 free(new_path, M_TEMP);
227 linsysfs_init(PFS_INIT_ARGS)
229 struct pfs_node *root;
230 struct pfs_node *dir;
231 struct pfs_node *pci;
232 struct pfs_node *scsi;
236 TAILQ_INIT(&scsi_host_q);
241 scsi = pfs_create_dir(root, "class", NULL, NULL, NULL, 0);
242 scsi = pfs_create_dir(scsi, "scsi_host", NULL, NULL, NULL, 0);
245 dir = pfs_create_dir(root, "devices", NULL, NULL, NULL, 0);
247 /* /sys/device/pci0000:00 */
248 pci = pfs_create_dir(dir, "pci0000:00", NULL, NULL, NULL, 0);
250 devclass = devclass_find("root");
251 if (devclass == NULL) {
255 dev = devclass_get_device(devclass, 0);
256 linsysfs_run_bus(dev, pci, scsi, "/pci0000:00", "0000");
264 linsysfs_uninit(PFS_INIT_ARGS)
266 struct scsi_host_queue *scsi_host, *scsi_host_tmp;
268 TAILQ_FOREACH_SAFE(scsi_host, &scsi_host_q, scsi_host_next,
270 TAILQ_REMOVE(&scsi_host_q, scsi_host, scsi_host_next);
271 free(scsi_host->path, M_TEMP);
272 free(scsi_host, M_TEMP);
278 PSEUDOFS(linsysfs, 1, PR_ALLOW_MOUNT_LINSYSFS);
279 #if defined(__amd64__)
280 MODULE_DEPEND(linsysfs, linux_common, 1, 1, 1);
282 MODULE_DEPEND(linsysfs, linux, 1, 1, 1);