| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/isci/@/compat/linsysfs/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/isci/@/compat/linsysfs/linsysfs.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: release/9.1.0/sys/compat/linsysfs/linsysfs.c 232728 2012-03-09 16:17:46Z mm $");
#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);