285 lines
7.1 KiB
C
285 lines
7.1 KiB
C
/*-
|
|
* Copyright (c) 2006 IronPort Systems
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/blist.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/exec.h>
|
|
#include <sys/filedesc.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/linker.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/resourcevar.h>
|
|
#include <sys/sbuf.h>
|
|
#include <sys/smp.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/pciio.h>
|
|
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pcireg.h>
|
|
|
|
#include <net/if.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
#include <vm/vm_map.h>
|
|
#include <vm/vm_param.h>
|
|
#include <vm/vm_object.h>
|
|
#include <vm/swap_pager.h>
|
|
|
|
#include <machine/bus.h>
|
|
|
|
#include "opt_compat.h"
|
|
#ifdef COMPAT_LINUX32 /* XXX */
|
|
#include <machine/../linux32/linux.h>
|
|
#else
|
|
#include <machine/../linux/linux.h>
|
|
#endif
|
|
#include <compat/linux/linux_ioctl.h>
|
|
#include <compat/linux/linux_mib.h>
|
|
#include <compat/linux/linux_util.h>
|
|
#include <fs/pseudofs/pseudofs.h>
|
|
|
|
struct scsi_host_queue {
|
|
TAILQ_ENTRY(scsi_host_queue) scsi_host_next;
|
|
char *path;
|
|
char *name;
|
|
};
|
|
|
|
TAILQ_HEAD(,scsi_host_queue) scsi_host_q;
|
|
|
|
static int host_number = 0;
|
|
|
|
static int
|
|
atoi(const char *str)
|
|
{
|
|
return (int)strtol(str, (char **)NULL, 10);
|
|
}
|
|
|
|
/*
|
|
* Filler function for proc_name
|
|
*/
|
|
static int
|
|
linsysfs_scsiname(PFS_FILL_ARGS)
|
|
{
|
|
struct scsi_host_queue *scsi_host;
|
|
int index;
|
|
|
|
if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
|
|
index = atoi(&pn->pn_parent->pn_name[4]);
|
|
} else {
|
|
sbuf_printf(sb, "unknown\n");
|
|
return (0);
|
|
}
|
|
TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
|
|
if (index-- == 0) {
|
|
sbuf_printf(sb, "%s\n", scsi_host->name);
|
|
return (0);
|
|
}
|
|
}
|
|
sbuf_printf(sb, "unknown\n");
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Filler function for device sym-link
|
|
*/
|
|
static int
|
|
linsysfs_link_scsi_host(PFS_FILL_ARGS)
|
|
{
|
|
struct scsi_host_queue *scsi_host;
|
|
int index;
|
|
|
|
if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) {
|
|
index = atoi(&pn->pn_parent->pn_name[4]);
|
|
} else {
|
|
sbuf_printf(sb, "unknown\n");
|
|
return (0);
|
|
}
|
|
TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) {
|
|
if (index-- == 0) {
|
|
sbuf_printf(sb, "../../../devices%s", scsi_host->path);
|
|
return(0);
|
|
}
|
|
}
|
|
sbuf_printf(sb, "unknown\n");
|
|
return (0);
|
|
}
|
|
|
|
#define PCI_DEV "pci"
|
|
static int
|
|
linsysfs_run_bus(device_t dev, struct pfs_node *dir, struct pfs_node *scsi, char *path,
|
|
char *prefix)
|
|
{
|
|
struct scsi_host_queue *scsi_host;
|
|
struct pfs_node *sub_dir;
|
|
int i, nchildren;
|
|
device_t *children, parent;
|
|
devclass_t devclass;
|
|
const char *name = NULL;
|
|
struct pci_devinfo *dinfo;
|
|
char *device, *host, *new_path = path;
|
|
|
|
parent = device_get_parent(dev);
|
|
if (parent) {
|
|
devclass = device_get_devclass(parent);
|
|
if (devclass != NULL)
|
|
name = devclass_get_name(devclass);
|
|
if (name && strcmp(name, PCI_DEV) == 0) {
|
|
dinfo = device_get_ivars(dev);
|
|
if (dinfo) {
|
|
device = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
|
|
new_path = malloc(MAXPATHLEN, M_TEMP,
|
|
M_WAITOK);
|
|
new_path[0] = '\000';
|
|
strcpy(new_path, path);
|
|
host = malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
|
|
device[0] = '\000';
|
|
sprintf(device, "%s:%02x:%02x.%x",
|
|
prefix,
|
|
dinfo->cfg.bus,
|
|
dinfo->cfg.slot,
|
|
dinfo->cfg.func);
|
|
strcat(new_path, "/");
|
|
strcat(new_path, device);
|
|
dir = pfs_create_dir(dir, device,
|
|
NULL, NULL, NULL, 0);
|
|
|
|
if (dinfo->cfg.baseclass == PCIC_STORAGE) {
|
|
/* DJA only make this if needed */
|
|
sprintf(host, "host%d", host_number++);
|
|
strcat(new_path, "/");
|
|
strcat(new_path, host);
|
|
pfs_create_dir(dir, host,
|
|
NULL, NULL, NULL, 0);
|
|
scsi_host = malloc(sizeof(
|
|
struct scsi_host_queue),
|
|
M_DEVBUF, M_NOWAIT);
|
|
scsi_host->path = malloc(
|
|
strlen(new_path) + 1,
|
|
M_DEVBUF, M_NOWAIT);
|
|
scsi_host->path[0] = '\000';
|
|
bcopy(new_path, scsi_host->path,
|
|
strlen(new_path) + 1);
|
|
scsi_host->name = "unknown";
|
|
|
|
sub_dir = pfs_create_dir(scsi, host,
|
|
NULL, NULL, NULL, 0);
|
|
pfs_create_link(sub_dir, "device",
|
|
&linsysfs_link_scsi_host,
|
|
NULL, NULL, NULL, 0);
|
|
pfs_create_file(sub_dir, "proc_name",
|
|
&linsysfs_scsiname,
|
|
NULL, NULL, NULL, PFS_RD);
|
|
scsi_host->name
|
|
= linux_driver_get_name_dev(dev);
|
|
TAILQ_INSERT_TAIL(&scsi_host_q,
|
|
scsi_host, scsi_host_next);
|
|
}
|
|
free(device, M_TEMP);
|
|
free(host, M_TEMP);
|
|
}
|
|
}
|
|
}
|
|
|
|
device_get_children(dev, &children, &nchildren);
|
|
for (i = 0; i < nchildren; i++) {
|
|
if (children[i])
|
|
linsysfs_run_bus(children[i], dir, scsi, new_path, prefix);
|
|
}
|
|
if (new_path != path)
|
|
free(new_path, M_TEMP);
|
|
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Constructor
|
|
*/
|
|
static int
|
|
linsysfs_init(PFS_INIT_ARGS)
|
|
{
|
|
struct pfs_node *root;
|
|
struct pfs_node *dir;
|
|
struct pfs_node *pci;
|
|
struct pfs_node *scsi;
|
|
devclass_t devclass;
|
|
device_t dev;
|
|
|
|
TAILQ_INIT(&scsi_host_q);
|
|
|
|
root = pi->pi_root;
|
|
|
|
/* /sys/class/... */
|
|
scsi = pfs_create_dir(root, "class", NULL, NULL, NULL, 0);
|
|
scsi = pfs_create_dir(scsi, "scsi_host", NULL, NULL, NULL, 0);
|
|
|
|
/* /sys/device */
|
|
dir = pfs_create_dir(root, "devices", NULL, NULL, NULL, 0);
|
|
|
|
/* /sys/device/pci0000:00 */
|
|
pci = pfs_create_dir(dir, "pci0000:00", NULL, NULL, NULL, 0);
|
|
|
|
devclass = devclass_find("root");
|
|
if (devclass == NULL) {
|
|
return (0);
|
|
}
|
|
|
|
dev = devclass_get_device(devclass, 0);
|
|
linsysfs_run_bus(dev, pci, scsi, "/pci0000:00", "0000");
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Destructor
|
|
*/
|
|
static int
|
|
linsysfs_uninit(PFS_INIT_ARGS)
|
|
{
|
|
struct scsi_host_queue *scsi_host, *scsi_host_tmp;
|
|
|
|
TAILQ_FOREACH_SAFE(scsi_host, &scsi_host_q, scsi_host_next,
|
|
scsi_host_tmp) {
|
|
TAILQ_REMOVE(&scsi_host_q, scsi_host, scsi_host_next);
|
|
free(scsi_host->path, M_TEMP);
|
|
free(scsi_host, M_TEMP);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
PSEUDOFS(linsysfs, 1, 0);
|
|
MODULE_DEPEND(linsysfs, linux, 1, 1, 1);
|