1158381Sambrisko/*- 2158381Sambrisko * Copyright (c) 2006 IronPort Systems 3158381Sambrisko * All rights reserved. 4158381Sambrisko * 5158381Sambrisko * Redistribution and use in source and binary forms, with or without 6158381Sambrisko * modification, are permitted provided that the following conditions 7158381Sambrisko * are met: 8158381Sambrisko * 1. Redistributions of source code must retain the above copyright 9158381Sambrisko * notice, this list of conditions and the following disclaimer. 10158381Sambrisko * 2. Redistributions in binary form must reproduce the above copyright 11158381Sambrisko * notice, this list of conditions and the following disclaimer in the 12158381Sambrisko * documentation and/or other materials provided with the distribution. 13158381Sambrisko * 14158381Sambrisko * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15158381Sambrisko * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16158381Sambrisko * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17158381Sambrisko * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18158381Sambrisko * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19158381Sambrisko * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20158381Sambrisko * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21158381Sambrisko * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22158381Sambrisko * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23158381Sambrisko * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24158381Sambrisko * SUCH DAMAGE. 25158381Sambrisko */ 26158381Sambrisko 27158381Sambrisko#include <sys/cdefs.h> 28158381Sambrisko__FBSDID("$FreeBSD$"); 29158381Sambrisko 30158381Sambrisko#include <sys/param.h> 31158381Sambrisko#include <sys/queue.h> 32158381Sambrisko#include <sys/blist.h> 33158381Sambrisko#include <sys/conf.h> 34158381Sambrisko#include <sys/exec.h> 35158381Sambrisko#include <sys/filedesc.h> 36158381Sambrisko#include <sys/kernel.h> 37158381Sambrisko#include <sys/linker.h> 38158381Sambrisko#include <sys/malloc.h> 39158381Sambrisko#include <sys/mount.h> 40158381Sambrisko#include <sys/mutex.h> 41158381Sambrisko#include <sys/proc.h> 42158381Sambrisko#include <sys/resourcevar.h> 43158381Sambrisko#include <sys/sbuf.h> 44158381Sambrisko#include <sys/smp.h> 45158381Sambrisko#include <sys/socket.h> 46158381Sambrisko#include <sys/vnode.h> 47158381Sambrisko#include <sys/bus.h> 48158381Sambrisko#include <sys/pciio.h> 49158381Sambrisko 50158381Sambrisko#include <dev/pci/pcivar.h> 51158381Sambrisko#include <dev/pci/pcireg.h> 52158381Sambrisko 53158381Sambrisko#include <net/if.h> 54158381Sambrisko 55158381Sambrisko#include <vm/vm.h> 56158381Sambrisko#include <vm/pmap.h> 57158381Sambrisko#include <vm/vm_map.h> 58158381Sambrisko#include <vm/vm_param.h> 59158381Sambrisko#include <vm/vm_object.h> 60158381Sambrisko#include <vm/swap_pager.h> 61158381Sambrisko 62158381Sambrisko#include <machine/bus.h> 63158381Sambrisko 64158381Sambrisko#include "opt_compat.h" 65158381Sambrisko#ifdef COMPAT_LINUX32 /* XXX */ 66158381Sambrisko#include <machine/../linux32/linux.h> 67158381Sambrisko#else 68158381Sambrisko#include <machine/../linux/linux.h> 69158381Sambrisko#endif 70158381Sambrisko#include <compat/linux/linux_ioctl.h> 71158381Sambrisko#include <compat/linux/linux_mib.h> 72158381Sambrisko#include <compat/linux/linux_util.h> 73158381Sambrisko#include <fs/pseudofs/pseudofs.h> 74158381Sambrisko 75158381Sambriskostruct scsi_host_queue { 76158381Sambrisko TAILQ_ENTRY(scsi_host_queue) scsi_host_next; 77158381Sambrisko char *path; 78158381Sambrisko char *name; 79158381Sambrisko}; 80158381Sambrisko 81158381SambriskoTAILQ_HEAD(,scsi_host_queue) scsi_host_q; 82158381Sambrisko 83158381Sambriskostatic int host_number = 0; 84158381Sambrisko 85158381Sambriskostatic int 86158381Sambriskoatoi(const char *str) 87158381Sambrisko{ 88158381Sambrisko return (int)strtol(str, (char **)NULL, 10); 89158381Sambrisko} 90158381Sambrisko 91158381Sambrisko/* 92158381Sambrisko * Filler function for proc_name 93158381Sambrisko */ 94158381Sambriskostatic int 95158381Sambriskolinsysfs_scsiname(PFS_FILL_ARGS) 96158381Sambrisko{ 97158381Sambrisko struct scsi_host_queue *scsi_host; 98158381Sambrisko int index; 99158381Sambrisko 100158381Sambrisko if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) { 101158381Sambrisko index = atoi(&pn->pn_parent->pn_name[4]); 102158381Sambrisko } else { 103158381Sambrisko sbuf_printf(sb, "unknown\n"); 104158381Sambrisko return (0); 105158381Sambrisko } 106158381Sambrisko TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) { 107158381Sambrisko if (index-- == 0) { 108158381Sambrisko sbuf_printf(sb, "%s\n", scsi_host->name); 109158381Sambrisko return (0); 110158381Sambrisko } 111158381Sambrisko } 112158381Sambrisko sbuf_printf(sb, "unknown\n"); 113158381Sambrisko return (0); 114158381Sambrisko} 115158381Sambrisko 116158381Sambrisko/* 117158381Sambrisko * Filler function for device sym-link 118158381Sambrisko */ 119158381Sambriskostatic int 120158381Sambriskolinsysfs_link_scsi_host(PFS_FILL_ARGS) 121158381Sambrisko{ 122158381Sambrisko struct scsi_host_queue *scsi_host; 123158381Sambrisko int index; 124158381Sambrisko 125158381Sambrisko if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) { 126158381Sambrisko index = atoi(&pn->pn_parent->pn_name[4]); 127158381Sambrisko } else { 128158381Sambrisko sbuf_printf(sb, "unknown\n"); 129158381Sambrisko return (0); 130158381Sambrisko } 131158381Sambrisko TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) { 132158381Sambrisko if (index-- == 0) { 133158381Sambrisko sbuf_printf(sb, "../../../devices%s", scsi_host->path); 134158381Sambrisko return(0); 135158381Sambrisko } 136158381Sambrisko } 137158381Sambrisko sbuf_printf(sb, "unknown\n"); 138158381Sambrisko return (0); 139158381Sambrisko} 140158381Sambrisko 141158381Sambrisko#define PCI_DEV "pci" 142158381Sambriskostatic int 143158381Sambriskolinsysfs_run_bus(device_t dev, struct pfs_node *dir, struct pfs_node *scsi, char *path, 144158381Sambrisko char *prefix) 145158381Sambrisko{ 146158381Sambrisko struct scsi_host_queue *scsi_host; 147158381Sambrisko struct pfs_node *sub_dir; 148158381Sambrisko int i, nchildren; 149158381Sambrisko device_t *children, parent; 150158381Sambrisko devclass_t devclass; 151158381Sambrisko const char *name = NULL; 152158381Sambrisko struct pci_devinfo *dinfo; 153158381Sambrisko char *device, *host, *new_path = path; 154158381Sambrisko 155158381Sambrisko parent = device_get_parent(dev); 156158381Sambrisko if (parent) { 157158381Sambrisko devclass = device_get_devclass(parent); 158158381Sambrisko if (devclass != NULL) 159158381Sambrisko name = devclass_get_name(devclass); 160158381Sambrisko if (name && strcmp(name, PCI_DEV) == 0) { 161158381Sambrisko dinfo = device_get_ivars(dev); 162158381Sambrisko if (dinfo) { 163158381Sambrisko device = malloc(MAXPATHLEN, M_TEMP, M_WAITOK); 164158381Sambrisko new_path = malloc(MAXPATHLEN, M_TEMP, 165158381Sambrisko M_WAITOK); 166158381Sambrisko new_path[0] = '\000'; 167158381Sambrisko strcpy(new_path, path); 168158381Sambrisko host = malloc(MAXPATHLEN, M_TEMP, M_WAITOK); 169158381Sambrisko device[0] = '\000'; 170158381Sambrisko sprintf(device, "%s:%02x:%02x.%x", 171158381Sambrisko prefix, 172158381Sambrisko dinfo->cfg.bus, 173158381Sambrisko dinfo->cfg.slot, 174158381Sambrisko dinfo->cfg.func); 175158381Sambrisko strcat(new_path, "/"); 176158381Sambrisko strcat(new_path, device); 177158381Sambrisko dir = pfs_create_dir(dir, device, 178167482Sdes NULL, NULL, NULL, 0); 179158381Sambrisko 180158381Sambrisko if (dinfo->cfg.baseclass == PCIC_STORAGE) { 181158381Sambrisko /* DJA only make this if needed */ 182158381Sambrisko sprintf(host, "host%d", host_number++); 183158381Sambrisko strcat(new_path, "/"); 184158381Sambrisko strcat(new_path, host); 185215354Sdes pfs_create_dir(dir, host, 186215354Sdes NULL, NULL, NULL, 0); 187158381Sambrisko scsi_host = malloc(sizeof( 188158381Sambrisko struct scsi_host_queue), 189158381Sambrisko M_DEVBUF, M_NOWAIT); 190158381Sambrisko scsi_host->path = malloc( 191158381Sambrisko strlen(new_path) + 1, 192158381Sambrisko M_DEVBUF, M_NOWAIT); 193158381Sambrisko scsi_host->path[0] = '\000'; 194158381Sambrisko bcopy(new_path, scsi_host->path, 195158381Sambrisko strlen(new_path) + 1); 196158381Sambrisko scsi_host->name = "unknown"; 197158381Sambrisko 198158381Sambrisko sub_dir = pfs_create_dir(scsi, host, 199167482Sdes NULL, NULL, NULL, 0); 200158381Sambrisko pfs_create_link(sub_dir, "device", 201158381Sambrisko &linsysfs_link_scsi_host, 202167482Sdes NULL, NULL, NULL, 0); 203158381Sambrisko pfs_create_file(sub_dir, "proc_name", 204158381Sambrisko &linsysfs_scsiname, 205167482Sdes NULL, NULL, NULL, PFS_RD); 206158381Sambrisko scsi_host->name 207158381Sambrisko = linux_driver_get_name_dev(dev); 208158381Sambrisko TAILQ_INSERT_TAIL(&scsi_host_q, 209158381Sambrisko scsi_host, scsi_host_next); 210158381Sambrisko } 211158381Sambrisko free(device, M_TEMP); 212158381Sambrisko free(host, M_TEMP); 213158381Sambrisko } 214158381Sambrisko } 215158381Sambrisko } 216158381Sambrisko 217158381Sambrisko device_get_children(dev, &children, &nchildren); 218158381Sambrisko for (i = 0; i < nchildren; i++) { 219158381Sambrisko if (children[i]) 220158381Sambrisko linsysfs_run_bus(children[i], dir, scsi, new_path, prefix); 221158381Sambrisko } 222158381Sambrisko if (new_path != path) 223158381Sambrisko free(new_path, M_TEMP); 224158381Sambrisko 225158381Sambrisko return (1); 226158381Sambrisko} 227158381Sambrisko 228158381Sambrisko/* 229158381Sambrisko * Constructor 230158381Sambrisko */ 231158381Sambriskostatic int 232158381Sambriskolinsysfs_init(PFS_INIT_ARGS) 233158381Sambrisko{ 234158381Sambrisko struct pfs_node *root; 235158381Sambrisko struct pfs_node *dir; 236158381Sambrisko struct pfs_node *pci; 237158381Sambrisko struct pfs_node *scsi; 238158381Sambrisko devclass_t devclass; 239158381Sambrisko device_t dev; 240158381Sambrisko 241158381Sambrisko TAILQ_INIT(&scsi_host_q); 242158381Sambrisko 243158381Sambrisko root = pi->pi_root; 244158381Sambrisko 245158381Sambrisko /* /sys/class/... */ 246167482Sdes scsi = pfs_create_dir(root, "class", NULL, NULL, NULL, 0); 247167482Sdes scsi = pfs_create_dir(scsi, "scsi_host", NULL, NULL, NULL, 0); 248158381Sambrisko 249158381Sambrisko /* /sys/device */ 250167482Sdes dir = pfs_create_dir(root, "devices", NULL, NULL, NULL, 0); 251158381Sambrisko 252158381Sambrisko /* /sys/device/pci0000:00 */ 253167482Sdes pci = pfs_create_dir(dir, "pci0000:00", NULL, NULL, NULL, 0); 254158381Sambrisko 255158381Sambrisko devclass = devclass_find("root"); 256158381Sambrisko if (devclass == NULL) { 257158381Sambrisko return (0); 258158381Sambrisko } 259158381Sambrisko 260158381Sambrisko dev = devclass_get_device(devclass, 0); 261158381Sambrisko linsysfs_run_bus(dev, pci, scsi, "/pci0000:00", "0000"); 262158381Sambrisko return (0); 263158381Sambrisko} 264158381Sambrisko 265158381Sambrisko/* 266158381Sambrisko * Destructor 267158381Sambrisko */ 268158381Sambriskostatic int 269158381Sambriskolinsysfs_uninit(PFS_INIT_ARGS) 270158381Sambrisko{ 271164858Snetchild struct scsi_host_queue *scsi_host, *scsi_host_tmp; 272158381Sambrisko 273164858Snetchild TAILQ_FOREACH_SAFE(scsi_host, &scsi_host_q, scsi_host_next, 274164858Snetchild scsi_host_tmp) { 275158381Sambrisko TAILQ_REMOVE(&scsi_host_q, scsi_host, scsi_host_next); 276158381Sambrisko free(scsi_host->path, M_TEMP); 277158381Sambrisko free(scsi_host, M_TEMP); 278158381Sambrisko } 279158381Sambrisko 280158381Sambrisko return (0); 281158381Sambrisko} 282158381Sambrisko 283232728SmmPSEUDOFS(linsysfs, 1, 0); 284158381SambriskoMODULE_DEPEND(linsysfs, linux, 1, 1, 1); 285