1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 # define EXPORT_SYMTAB
25 #define DEBUG_SUBSYSTEM S_PORTALS
27 #include <linux/config.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
31 #include <linux/string.h>
32 #include <linux/stat.h>
33 #include <linux/init.h>
34 #include <linux/errno.h>
35 #include <linux/smp_lock.h>
36 #include <linux/unistd.h>
38 #include <asm/system.h>
39 #include <asm/uaccess.h>
42 #include <linux/stat.h>
43 #include <asm/uaccess.h>
44 #include <asm/segment.h>
45 #include <linux/miscdevice.h>
47 #include <portals/lib-p30.h>
48 #include <portals/p30.h>
49 #include <linux/kp30.h>
50 #include <linux/portals_compat25.h>
52 #define PORTAL_MINOR 240
54 extern void (kping_client)(struct portal_ioctl_data *);
56 struct nal_cmd_handler {
57 nal_cmd_handler_t nch_handler;
61 static struct nal_cmd_handler nal_cmd[NAL_MAX_NR + 1];
62 struct semaphore nal_cmd_sem;
65 void kportal_assertion_failed(char *expr, char *file, const char *func,
68 portals_debug_msg(0, D_EMERG, file, func, line, CDEBUG_STACK,
69 "ASSERTION(%s) failed\n", expr);
70 LBUG_WITH_LOC(file, func, line);
75 kportal_daemonize (char *str)
77 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,63))
81 snprintf (current->comm, sizeof (current->comm), "%s", str);
86 kportal_blockallsigs ()
90 SIGNAL_MASK_LOCK(current, flags);
91 sigfillset(¤t->blocked);
93 SIGNAL_MASK_UNLOCK(current, flags);
96 /* called when opening /dev/device */
97 static int kportal_psdev_open(struct inode * inode, struct file * file)
107 /* called when closing /dev/device */
108 static int kportal_psdev_release(struct inode * inode, struct file * file)
119 static inline void freedata(void *data, int len)
121 PORTAL_FREE(data, len);
125 kportal_add_route(int gateway_nalid, ptl_nid_t gateway_nid,
126 ptl_nid_t lo_nid, ptl_nid_t hi_nid)
129 kpr_control_interface_t *ci;
131 ci = (kpr_control_interface_t *) PORTAL_SYMBOL_GET (kpr_control_interface);
135 rc = ci->kprci_add_route (gateway_nalid, gateway_nid, lo_nid, hi_nid);
137 PORTAL_SYMBOL_PUT(kpr_control_interface);
142 kportal_del_route(int gw_nalid, ptl_nid_t gw_nid,
143 ptl_nid_t lo, ptl_nid_t hi)
146 kpr_control_interface_t *ci;
148 ci = (kpr_control_interface_t *)PORTAL_SYMBOL_GET(kpr_control_interface);
152 rc = ci->kprci_del_route (gw_nalid, gw_nid, lo, hi);
154 PORTAL_SYMBOL_PUT(kpr_control_interface);
159 kportal_notify_router (int gw_nalid, ptl_nid_t gw_nid,
160 int alive, time_t when)
163 kpr_control_interface_t *ci;
165 /* No error if router not preset. Sysadmin is allowed to notify
166 * _everywhere_ when a NID boots or crashes, even if they know
167 * nothing of the peer. */
168 ci = (kpr_control_interface_t *)PORTAL_SYMBOL_GET(kpr_control_interface);
172 rc = ci->kprci_notify (gw_nalid, gw_nid, alive, when);
174 PORTAL_SYMBOL_PUT(kpr_control_interface);
179 kportal_get_route(int index, __u32 *gateway_nalidp, ptl_nid_t *gateway_nidp,
180 ptl_nid_t *lo_nidp, ptl_nid_t *hi_nidp, int *alivep)
183 ptl_nid_t gateway_nid;
188 kpr_control_interface_t *ci;
190 ci = (kpr_control_interface_t *) PORTAL_SYMBOL_GET(kpr_control_interface);
194 rc = ci->kprci_get_route(index, &gateway_nalid, &gateway_nid,
195 &lo_nid, &hi_nid, &alive);
198 CDEBUG(D_IOCTL, "got route [%d] %d "LPX64":"LPX64" - "LPX64", %s\n",
199 index, gateway_nalid, gateway_nid, lo_nid, hi_nid,
200 alive ? "up" : "down");
202 *gateway_nalidp = (__u32)gateway_nalid;
203 *gateway_nidp = gateway_nid;
209 PORTAL_SYMBOL_PUT (kpr_control_interface);
214 kportal_router_cmd(struct portals_cfg *pcfg, void * private)
219 switch(pcfg->pcfg_command) {
221 CDEBUG(D_IOCTL, "Inappropriate cmd: %d\n", pcfg->pcfg_command);
224 case NAL_CMD_ADD_ROUTE:
225 CDEBUG(D_IOCTL, "Adding route: [%d] "LPU64" : "LPU64" - "LPU64"\n",
226 pcfg->pcfg_nal, pcfg->pcfg_nid,
227 pcfg->pcfg_nid2, pcfg->pcfg_nid3);
228 err = kportal_add_route(pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
229 pcfg->pcfg_nid2, pcfg->pcfg_nid3);
232 case NAL_CMD_DEL_ROUTE:
233 CDEBUG (D_IOCTL, "Removing routes via [%d] "LPU64" : "LPU64" - "LPU64"\n",
234 pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
235 pcfg->pcfg_nid2, pcfg->pcfg_nid3);
236 err = kportal_del_route (pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
237 pcfg->pcfg_nid2, pcfg->pcfg_nid3);
240 case NAL_CMD_NOTIFY_ROUTER: {
241 CDEBUG (D_IOCTL, "Notifying peer [%d] "LPU64" %s @ %ld\n",
242 pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
243 pcfg->pcfg_flags ? "Enabling" : "Disabling",
244 (time_t)pcfg->pcfg_nid3);
246 err = kportal_notify_router (pcfg->pcfg_gw_nal, pcfg->pcfg_nid,
248 (time_t)pcfg->pcfg_nid3);
252 case NAL_CMD_GET_ROUTE:
253 CDEBUG (D_IOCTL, "Getting route [%d]\n", pcfg->pcfg_count);
254 err = kportal_get_route(pcfg->pcfg_count, &pcfg->pcfg_gw_nal,
256 &pcfg->pcfg_nid2, &pcfg->pcfg_nid3,
264 kportal_nal_cmd(struct portals_cfg *pcfg)
266 __u32 nal = pcfg->pcfg_nal;
272 if (nal > 0 && nal <= NAL_MAX_NR && nal_cmd[nal].nch_handler) {
273 CDEBUG(D_IOCTL, "calling handler nal: %d, cmd: %d\n", nal,
275 rc = nal_cmd[nal].nch_handler(pcfg, nal_cmd[nal].nch_private);
282 kportal_get_ni (int nal)
288 return (PORTAL_SYMBOL_GET(kqswnal_ni));
290 return (PORTAL_SYMBOL_GET(ksocknal_ni));
292 return (PORTAL_SYMBOL_GET(ktoenal_ni));
294 return (PORTAL_SYMBOL_GET(kgmnal_ni));
296 return (PORTAL_SYMBOL_GET(kibnal_ni));
301 return (PORTAL_SYMBOL_GET(kscimacnal_ni));
303 /* A warning to a naive caller */
304 CERROR ("unknown nal: %d\n", nal);
310 kportal_put_ni (int nal)
316 PORTAL_SYMBOL_PUT(kqswnal_ni);
319 PORTAL_SYMBOL_PUT(ksocknal_ni);
322 PORTAL_SYMBOL_PUT(ktoenal_ni);
325 PORTAL_SYMBOL_PUT(kgmnal_ni);
328 PORTAL_SYMBOL_PUT(kibnal_ni);
331 /* A lesson to a malicious caller */
334 PORTAL_SYMBOL_PUT(kscimacnal_ni);
337 CERROR ("unknown nal: %d\n", nal);
342 kportal_nal_register(int nal, nal_cmd_handler_t handler, void * private)
346 CDEBUG(D_IOCTL, "Register NAL %d, handler: %p\n", nal, handler);
348 if (nal > 0 && nal <= NAL_MAX_NR) {
350 if (nal_cmd[nal].nch_handler != NULL)
353 nal_cmd[nal].nch_handler = handler;
354 nal_cmd[nal].nch_private = private;
362 kportal_nal_unregister(int nal)
366 CDEBUG(D_IOCTL, "Unregister NAL %d\n", nal);
368 if (nal > 0 && nal <= NAL_MAX_NR) {
370 nal_cmd[nal].nch_handler = NULL;
371 nal_cmd[nal].nch_private = NULL;
378 static int kportal_ioctl(struct inode *inode, struct file *file,
379 unsigned int cmd, unsigned long arg)
383 struct portal_ioctl_data *data;
384 char str[PTL_NALFMT_SIZE];
388 if (current->fsuid != 0)
389 RETURN(err = -EACCES);
391 if ( _IOC_TYPE(cmd) != IOC_PORTAL_TYPE ||
392 _IOC_NR(cmd) < IOC_PORTAL_MIN_NR ||
393 _IOC_NR(cmd) > IOC_PORTAL_MAX_NR ) {
394 CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
395 _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
399 if (portal_ioctl_getdata(buf, buf + 800, (void *)arg)) {
400 CERROR("PORTALS ioctl: data error\n");
404 data = (struct portal_ioctl_data *)buf;
407 case IOC_PORTAL_SET_DAEMON:
408 RETURN (portals_debug_set_daemon (
409 (unsigned int) data->ioc_count,
410 (unsigned int) data->ioc_inllen1,
411 (char *) data->ioc_inlbuf1,
412 (unsigned int) data->ioc_misc));
413 case IOC_PORTAL_GET_DEBUG: {
414 __s32 size = portals_debug_copy_to_user(data->ioc_pbuf1,
420 data->ioc_size = size;
421 err = copy_to_user((char *)arg, data, sizeof(*data));
424 case IOC_PORTAL_CLEAR_DEBUG:
425 portals_debug_clear_buffer();
427 case IOC_PORTAL_PANIC:
428 if (!capable (CAP_SYS_BOOT))
430 panic("debugctl-invoked panic");
432 case IOC_PORTAL_MARK_DEBUG:
433 if (data->ioc_inlbuf1 == NULL ||
434 data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0')
436 portals_debug_mark_buffer(data->ioc_inlbuf1);
438 case IOC_PORTAL_PING: {
439 void (*ping)(struct portal_ioctl_data *);
441 CDEBUG(D_IOCTL, "doing %d pings to nid "LPX64" (%s)\n",
442 data->ioc_count, data->ioc_nid,
443 portals_nid2str(data->ioc_nal, data->ioc_nid, str));
444 ping = PORTAL_SYMBOL_GET(kping_client);
446 CERROR("PORTAL_SYMBOL_GET failed\n");
449 PORTAL_SYMBOL_PUT(kping_client);
454 case IOC_PORTAL_GET_NID: {
455 const ptl_handle_ni_t *nip;
456 ptl_process_id_t pid;
458 CDEBUG (D_IOCTL, "Getting nid for nal [%d]\n", data->ioc_nal);
460 nip = kportal_get_ni (data->ioc_nal);
464 err = PtlGetId (*nip, &pid);
465 LASSERT (err == PTL_OK);
466 kportal_put_ni (data->ioc_nal);
468 data->ioc_nid = pid.nid;
469 if (copy_to_user ((char *)arg, data, sizeof (*data)))
474 case IOC_PORTAL_NAL_CMD: {
475 struct portals_cfg pcfg;
477 LASSERT (data->ioc_plen1 == sizeof(pcfg));
478 err = copy_from_user(&pcfg, (void *)data->ioc_pbuf1,
485 CDEBUG (D_IOCTL, "nal command nal %d cmd %d\n", pcfg.pcfg_nal,
487 err = kportal_nal_cmd(&pcfg);
489 if (copy_to_user((char *)data->ioc_pbuf1, &pcfg,
492 if (copy_to_user((char *)arg, data, sizeof (*data)))
497 case IOC_PORTAL_FAIL_NID: {
498 const ptl_handle_ni_t *nip;
500 CDEBUG (D_IOCTL, "fail nid: [%d] "LPU64" count %d\n",
501 data->ioc_nal, data->ioc_nid, data->ioc_count);
503 nip = kportal_get_ni (data->ioc_nal);
507 err = PtlFailNid (*nip, data->ioc_nid, data->ioc_count);
508 kportal_put_ni (data->ioc_nal);
512 case IOC_PORTAL_LWT_CONTROL:
513 err = lwt_control (data->ioc_flags, data->ioc_misc);
516 case IOC_PORTAL_LWT_SNAPSHOT:
517 err = lwt_snapshot (&data->ioc_count, &data->ioc_misc,
518 data->ioc_pbuf1, data->ioc_plen1);
520 copy_to_user((char *)arg, data, sizeof (*data)))
524 case IOC_PORTAL_LWT_LOOKUP_STRING:
525 err = lwt_lookup_string (&data->ioc_count, data->ioc_pbuf1,
526 data->ioc_pbuf2, data->ioc_plen2);
528 copy_to_user((char *)arg, data, sizeof (*data)))
541 static struct file_operations portalsdev_fops = {
542 ioctl: kportal_ioctl,
543 open: kportal_psdev_open,
544 release: kportal_psdev_release
548 static struct miscdevice portal_dev = {
554 extern int insert_proc(void);
555 extern void remove_proc(void);
556 MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
557 MODULE_DESCRIPTION("Portals v3.1");
558 MODULE_LICENSE("GPL");
560 static int init_kportals_module(void)
564 rc = portals_debug_init(5 * 1024 * 1024);
566 printk(KERN_ERR "LustreError: portals_debug_init: %d\n", rc);
573 CERROR("lwt_init: error %d\n", rc);
577 sema_init(&nal_cmd_sem, 1);
579 rc = misc_register(&portal_dev);
581 CERROR("misc_register: error %d\n", rc);
587 CERROR("PtlInit: error %d\n", rc);
588 goto cleanup_deregister;
593 CERROR("insert_proc: error %d\n", rc);
597 rc = kportal_nal_register(ROUTER, kportal_router_cmd, NULL);
599 CERROR("kportal_nal_registre: ROUTER error %d\n", rc);
603 CDEBUG (D_OTHER, "portals setup OK\n");
611 misc_deregister(&portal_dev);
617 portals_debug_cleanup();
621 static void exit_kportals_module(void)
625 kportal_nal_unregister(ROUTER);
629 CDEBUG(D_MALLOC, "before Portals cleanup: kmem %d\n",
630 atomic_read(&portal_kmemory));
633 rc = misc_deregister(&portal_dev);
635 CERROR("misc_deregister error %d\n", rc);
641 if (atomic_read(&portal_kmemory) != 0)
642 CERROR("Portals memory leaked: %d bytes\n",
643 atomic_read(&portal_kmemory));
645 rc = portals_debug_cleanup();
647 printk(KERN_ERR "LustreError: portals_debug_cleanup: %d\n", rc);
650 EXPORT_SYMBOL(lib_dispatch);
651 EXPORT_SYMBOL(PtlMEAttach);
652 EXPORT_SYMBOL(PtlMEInsert);
653 EXPORT_SYMBOL(PtlMEUnlink);
654 EXPORT_SYMBOL(PtlEQAlloc);
655 EXPORT_SYMBOL(PtlMDAttach);
656 EXPORT_SYMBOL(PtlMDUnlink);
657 EXPORT_SYMBOL(PtlNIInit);
658 EXPORT_SYMBOL(PtlNIFini);
659 EXPORT_SYMBOL(PtlNIDebug);
660 EXPORT_SYMBOL(PtlInit);
661 EXPORT_SYMBOL(PtlFini);
662 EXPORT_SYMBOL(PtlPut);
663 EXPORT_SYMBOL(PtlGet);
664 EXPORT_SYMBOL(ptl_err_str);
665 EXPORT_SYMBOL(portal_subsystem_debug);
666 EXPORT_SYMBOL(portal_debug);
667 EXPORT_SYMBOL(portal_stack);
668 EXPORT_SYMBOL(portal_printk);
669 EXPORT_SYMBOL(portal_cerror);
670 EXPORT_SYMBOL(PtlEQWait);
671 EXPORT_SYMBOL(PtlEQFree);
672 EXPORT_SYMBOL(PtlEQGet);
673 EXPORT_SYMBOL(PtlGetId);
674 EXPORT_SYMBOL(PtlMDBind);
675 EXPORT_SYMBOL(lib_iov_nob);
676 EXPORT_SYMBOL(lib_copy_iov2buf);
677 EXPORT_SYMBOL(lib_copy_buf2iov);
678 EXPORT_SYMBOL(lib_kiov_nob);
679 EXPORT_SYMBOL(lib_copy_kiov2buf);
680 EXPORT_SYMBOL(lib_copy_buf2kiov);
681 EXPORT_SYMBOL(lib_finalize);
682 EXPORT_SYMBOL(lib_parse);
683 EXPORT_SYMBOL(lib_fake_reply_msg);
684 EXPORT_SYMBOL(lib_init);
685 EXPORT_SYMBOL(lib_fini);
686 EXPORT_SYMBOL(portal_kmemory);
687 EXPORT_SYMBOL(kportal_daemonize);
688 EXPORT_SYMBOL(kportal_blockallsigs);
689 EXPORT_SYMBOL(kportal_nal_register);
690 EXPORT_SYMBOL(kportal_nal_unregister);
691 EXPORT_SYMBOL(kportal_assertion_failed);
692 EXPORT_SYMBOL(dispatch_name);
693 EXPORT_SYMBOL(kportal_get_ni);
694 EXPORT_SYMBOL(kportal_put_ni);
695 EXPORT_SYMBOL(kportal_nal_cmd);
697 module_init(init_kportals_module);
698 module_exit (exit_kportals_module);