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: releng/10.3/sys/compat/linsysfs/linsysfs.c 295951 2016-02-24 02:34:11Z araujo $"); 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 <compat/linux/linux_ioctl.h> 65158381Sambrisko#include <compat/linux/linux_mib.h> 66158381Sambrisko#include <compat/linux/linux_util.h> 67158381Sambrisko#include <fs/pseudofs/pseudofs.h> 68158381Sambrisko 69158381Sambriskostruct scsi_host_queue { 70158381Sambrisko TAILQ_ENTRY(scsi_host_queue) scsi_host_next; 71158381Sambrisko char *path; 72158381Sambrisko char *name; 73158381Sambrisko}; 74158381Sambrisko 75158381SambriskoTAILQ_HEAD(,scsi_host_queue) scsi_host_q; 76158381Sambrisko 77158381Sambriskostatic int host_number = 0; 78158381Sambrisko 79158381Sambriskostatic int 80158381Sambriskoatoi(const char *str) 81158381Sambrisko{ 82158381Sambrisko return (int)strtol(str, (char **)NULL, 10); 83158381Sambrisko} 84158381Sambrisko 85158381Sambrisko/* 86158381Sambrisko * Filler function for proc_name 87158381Sambrisko */ 88158381Sambriskostatic int 89158381Sambriskolinsysfs_scsiname(PFS_FILL_ARGS) 90158381Sambrisko{ 91158381Sambrisko struct scsi_host_queue *scsi_host; 92158381Sambrisko int index; 93158381Sambrisko 94158381Sambrisko if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) { 95158381Sambrisko index = atoi(&pn->pn_parent->pn_name[4]); 96158381Sambrisko } else { 97158381Sambrisko sbuf_printf(sb, "unknown\n"); 98158381Sambrisko return (0); 99158381Sambrisko } 100158381Sambrisko TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) { 101158381Sambrisko if (index-- == 0) { 102158381Sambrisko sbuf_printf(sb, "%s\n", scsi_host->name); 103158381Sambrisko return (0); 104158381Sambrisko } 105158381Sambrisko } 106158381Sambrisko sbuf_printf(sb, "unknown\n"); 107158381Sambrisko return (0); 108158381Sambrisko} 109158381Sambrisko 110158381Sambrisko/* 111158381Sambrisko * Filler function for device sym-link 112158381Sambrisko */ 113158381Sambriskostatic int 114158381Sambriskolinsysfs_link_scsi_host(PFS_FILL_ARGS) 115158381Sambrisko{ 116158381Sambrisko struct scsi_host_queue *scsi_host; 117158381Sambrisko int index; 118158381Sambrisko 119158381Sambrisko if (strncmp(pn->pn_parent->pn_name, "host", 4) == 0) { 120158381Sambrisko index = atoi(&pn->pn_parent->pn_name[4]); 121158381Sambrisko } else { 122158381Sambrisko sbuf_printf(sb, "unknown\n"); 123158381Sambrisko return (0); 124158381Sambrisko } 125158381Sambrisko TAILQ_FOREACH(scsi_host, &scsi_host_q, scsi_host_next) { 126158381Sambrisko if (index-- == 0) { 127158381Sambrisko sbuf_printf(sb, "../../../devices%s", scsi_host->path); 128158381Sambrisko return(0); 129158381Sambrisko } 130158381Sambrisko } 131158381Sambrisko sbuf_printf(sb, "unknown\n"); 132158381Sambrisko return (0); 133158381Sambrisko} 134158381Sambrisko 135158381Sambrisko#define PCI_DEV "pci" 136158381Sambriskostatic int 137158381Sambriskolinsysfs_run_bus(device_t dev, struct pfs_node *dir, struct pfs_node *scsi, char *path, 138158381Sambrisko char *prefix) 139158381Sambrisko{ 140158381Sambrisko struct scsi_host_queue *scsi_host; 141158381Sambrisko struct pfs_node *sub_dir; 142158381Sambrisko int i, nchildren; 143158381Sambrisko device_t *children, parent; 144158381Sambrisko devclass_t devclass; 145158381Sambrisko const char *name = NULL; 146158381Sambrisko struct pci_devinfo *dinfo; 147158381Sambrisko char *device, *host, *new_path = path; 148158381Sambrisko 149158381Sambrisko parent = device_get_parent(dev); 150158381Sambrisko if (parent) { 151158381Sambrisko devclass = device_get_devclass(parent); 152158381Sambrisko if (devclass != NULL) 153158381Sambrisko name = devclass_get_name(devclass); 154158381Sambrisko if (name && strcmp(name, PCI_DEV) == 0) { 155158381Sambrisko dinfo = device_get_ivars(dev); 156158381Sambrisko if (dinfo) { 157158381Sambrisko device = malloc(MAXPATHLEN, M_TEMP, M_WAITOK); 158158381Sambrisko new_path = malloc(MAXPATHLEN, M_TEMP, 159158381Sambrisko M_WAITOK); 160158381Sambrisko new_path[0] = '\000'; 161158381Sambrisko strcpy(new_path, path); 162158381Sambrisko host = malloc(MAXPATHLEN, M_TEMP, M_WAITOK); 163158381Sambrisko device[0] = '\000'; 164158381Sambrisko sprintf(device, "%s:%02x:%02x.%x", 165158381Sambrisko prefix, 166158381Sambrisko dinfo->cfg.bus, 167158381Sambrisko dinfo->cfg.slot, 168158381Sambrisko dinfo->cfg.func); 169158381Sambrisko strcat(new_path, "/"); 170158381Sambrisko strcat(new_path, device); 171158381Sambrisko dir = pfs_create_dir(dir, device, 172167482Sdes NULL, NULL, NULL, 0); 173158381Sambrisko 174158381Sambrisko if (dinfo->cfg.baseclass == PCIC_STORAGE) { 175158381Sambrisko /* DJA only make this if needed */ 176158381Sambrisko sprintf(host, "host%d", host_number++); 177158381Sambrisko strcat(new_path, "/"); 178158381Sambrisko strcat(new_path, host); 179215354Sdes pfs_create_dir(dir, host, 180215354Sdes NULL, NULL, NULL, 0); 181158381Sambrisko scsi_host = malloc(sizeof( 182158381Sambrisko struct scsi_host_queue), 183158381Sambrisko M_DEVBUF, M_NOWAIT); 184158381Sambrisko scsi_host->path = malloc( 185158381Sambrisko strlen(new_path) + 1, 186158381Sambrisko M_DEVBUF, M_NOWAIT); 187158381Sambrisko scsi_host->path[0] = '\000'; 188158381Sambrisko bcopy(new_path, scsi_host->path, 189158381Sambrisko strlen(new_path) + 1); 190158381Sambrisko scsi_host->name = "unknown"; 191158381Sambrisko 192158381Sambrisko sub_dir = pfs_create_dir(scsi, host, 193167482Sdes NULL, NULL, NULL, 0); 194158381Sambrisko pfs_create_link(sub_dir, "device", 195158381Sambrisko &linsysfs_link_scsi_host, 196167482Sdes NULL, NULL, NULL, 0); 197158381Sambrisko pfs_create_file(sub_dir, "proc_name", 198158381Sambrisko &linsysfs_scsiname, 199167482Sdes NULL, NULL, NULL, PFS_RD); 200158381Sambrisko scsi_host->name 201158381Sambrisko = linux_driver_get_name_dev(dev); 202158381Sambrisko TAILQ_INSERT_TAIL(&scsi_host_q, 203158381Sambrisko scsi_host, scsi_host_next); 204158381Sambrisko } 205158381Sambrisko free(device, M_TEMP); 206158381Sambrisko free(host, M_TEMP); 207158381Sambrisko } 208158381Sambrisko } 209158381Sambrisko } 210158381Sambrisko 211158381Sambrisko device_get_children(dev, &children, &nchildren); 212158381Sambrisko for (i = 0; i < nchildren; i++) { 213158381Sambrisko if (children[i]) 214158381Sambrisko linsysfs_run_bus(children[i], dir, scsi, new_path, prefix); 215158381Sambrisko } 216158381Sambrisko if (new_path != path) 217158381Sambrisko free(new_path, M_TEMP); 218158381Sambrisko 219158381Sambrisko return (1); 220158381Sambrisko} 221158381Sambrisko 222158381Sambrisko/* 223158381Sambrisko * Constructor 224158381Sambrisko */ 225158381Sambriskostatic int 226158381Sambriskolinsysfs_init(PFS_INIT_ARGS) 227158381Sambrisko{ 228158381Sambrisko struct pfs_node *root; 229158381Sambrisko struct pfs_node *dir; 230158381Sambrisko struct pfs_node *pci; 231158381Sambrisko struct pfs_node *scsi; 232158381Sambrisko devclass_t devclass; 233158381Sambrisko device_t dev; 234158381Sambrisko 235158381Sambrisko TAILQ_INIT(&scsi_host_q); 236158381Sambrisko 237158381Sambrisko root = pi->pi_root; 238158381Sambrisko 239158381Sambrisko /* /sys/class/... */ 240167482Sdes scsi = pfs_create_dir(root, "class", NULL, NULL, NULL, 0); 241167482Sdes scsi = pfs_create_dir(scsi, "scsi_host", NULL, NULL, NULL, 0); 242158381Sambrisko 243158381Sambrisko /* /sys/device */ 244167482Sdes dir = pfs_create_dir(root, "devices", NULL, NULL, NULL, 0); 245158381Sambrisko 246158381Sambrisko /* /sys/device/pci0000:00 */ 247167482Sdes pci = pfs_create_dir(dir, "pci0000:00", NULL, NULL, NULL, 0); 248158381Sambrisko 249158381Sambrisko devclass = devclass_find("root"); 250158381Sambrisko if (devclass == NULL) { 251158381Sambrisko return (0); 252158381Sambrisko } 253158381Sambrisko 254158381Sambrisko dev = devclass_get_device(devclass, 0); 255158381Sambrisko linsysfs_run_bus(dev, pci, scsi, "/pci0000:00", "0000"); 256158381Sambrisko return (0); 257158381Sambrisko} 258158381Sambrisko 259158381Sambrisko/* 260158381Sambrisko * Destructor 261158381Sambrisko */ 262158381Sambriskostatic int 263158381Sambriskolinsysfs_uninit(PFS_INIT_ARGS) 264158381Sambrisko{ 265164858Snetchild struct scsi_host_queue *scsi_host, *scsi_host_tmp; 266158381Sambrisko 267164858Snetchild TAILQ_FOREACH_SAFE(scsi_host, &scsi_host_q, scsi_host_next, 268164858Snetchild scsi_host_tmp) { 269158381Sambrisko TAILQ_REMOVE(&scsi_host_q, scsi_host, scsi_host_next); 270158381Sambrisko free(scsi_host->path, M_TEMP); 271158381Sambrisko free(scsi_host, M_TEMP); 272158381Sambrisko } 273158381Sambrisko 274158381Sambrisko return (0); 275158381Sambrisko} 276158381Sambrisko 277295951SaraujoPSEUDOFS(linsysfs, 1, PR_ALLOW_MOUNT_LINSYSFS); 278293527Sdchagin#if defined(__amd64__) 279293527SdchaginMODULE_DEPEND(linsysfs, linux_common, 1, 1, 1); 280293527Sdchagin#else 281158381SambriskoMODULE_DEPEND(linsysfs, linux, 1, 1, 1); 282293527Sdchagin#endif 283