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, ptl_nid_t lo_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(ptl_nid_t target)
145 kpr_control_interface_t *ci;
147 ci = (kpr_control_interface_t *)PORTAL_SYMBOL_GET(kpr_control_interface);
151 rc = ci->kprci_del_route (target);
153 PORTAL_SYMBOL_PUT(kpr_control_interface);
158 kportal_get_route(int index, __u32 *gateway_nalidp, ptl_nid_t *gateway_nidp,
159 ptl_nid_t *lo_nidp, ptl_nid_t *hi_nidp)
162 ptl_nid_t gateway_nid;
166 kpr_control_interface_t *ci;
168 ci = (kpr_control_interface_t *) PORTAL_SYMBOL_GET(kpr_control_interface);
172 rc = ci->kprci_get_route(index, &gateway_nalid, &gateway_nid, &lo_nid,
176 CDEBUG(D_IOCTL, "got route [%d] %d "LPX64":"LPX64" - "LPX64"\n",
177 index, gateway_nalid, gateway_nid, lo_nid, hi_nid);
179 *gateway_nalidp = (__u32)gateway_nalid;
180 *gateway_nidp = (__u32)gateway_nid;
181 *lo_nidp = (__u32)lo_nid;
182 *hi_nidp = (__u32)hi_nid;
185 PORTAL_SYMBOL_PUT (kpr_control_interface);
190 kportal_nal_cmd(int nal, struct portal_ioctl_data *data)
197 if (nal > 0 && nal <= NAL_MAX_NR && nal_cmd[nal].nch_handler) {
198 CDEBUG(D_IOCTL, "calling handler nal: %d, cmd: %d\n", nal, data->ioc_nal_cmd);
199 rc = nal_cmd[nal].nch_handler(data, nal_cmd[nal].nch_private);
206 kportal_get_ni (int nal)
212 return (PORTAL_SYMBOL_GET(kqswnal_ni));
214 return (PORTAL_SYMBOL_GET(ksocknal_ni));
216 return (PORTAL_SYMBOL_GET(ktoenal_ni));
218 return (PORTAL_SYMBOL_GET(kgmnal_ni));
223 return (PORTAL_SYMBOL_GET(kscimacnal_ni));
225 /* A warning to a naive caller */
226 CERROR ("unknown nal: %d\n", nal);
232 kportal_put_ni (int nal)
238 PORTAL_SYMBOL_PUT(kqswnal_ni);
241 PORTAL_SYMBOL_PUT(ksocknal_ni);
244 PORTAL_SYMBOL_PUT(ktoenal_ni);
247 PORTAL_SYMBOL_PUT(kgmnal_ni);
250 /* A lesson to a malicious caller */
253 PORTAL_SYMBOL_PUT(kscimacnal_ni);
256 CERROR ("unknown nal: %d\n", nal);
261 kportal_nal_register(int nal, nal_cmd_handler_t handler, void * private)
265 CDEBUG(D_IOCTL, "Register NAL %d, handler: %p\n", nal, handler);
267 if (nal > 0 && nal <= NAL_MAX_NR) {
269 if (nal_cmd[nal].nch_handler != NULL)
272 nal_cmd[nal].nch_handler = handler;
273 nal_cmd[nal].nch_private = private;
281 kportal_nal_unregister(int nal)
285 CDEBUG(D_IOCTL, "Unregister NAL %d\n", nal);
287 if (nal > 0 && nal <= NAL_MAX_NR) {
289 nal_cmd[nal].nch_handler = NULL;
290 nal_cmd[nal].nch_private = NULL;
297 static int kportal_ioctl(struct inode *inode, struct file *file,
298 unsigned int cmd, unsigned long arg)
302 struct portal_ioctl_data *data;
306 if ( _IOC_TYPE(cmd) != IOC_PORTAL_TYPE ||
307 _IOC_NR(cmd) < IOC_PORTAL_MIN_NR ||
308 _IOC_NR(cmd) > IOC_PORTAL_MAX_NR ) {
309 CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
310 _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
314 if (portal_ioctl_getdata(buf, buf + 800, (void *)arg)) {
315 CERROR("PORTALS ioctl: data error\n");
319 data = (struct portal_ioctl_data *)buf;
322 case IOC_PORTAL_SET_DAEMON:
323 RETURN (portals_debug_set_daemon (
324 (unsigned int) data->ioc_count,
325 (unsigned int) data->ioc_inllen1,
326 (char *) data->ioc_inlbuf1,
327 (unsigned int) data->ioc_misc));
328 case IOC_PORTAL_GET_DEBUG: {
329 __s32 size = portals_debug_copy_to_user(data->ioc_pbuf1,
335 data->ioc_size = size;
336 err = copy_to_user((char *)arg, data, sizeof(*data));
339 case IOC_PORTAL_CLEAR_DEBUG:
340 portals_debug_clear_buffer();
342 case IOC_PORTAL_PANIC:
343 if (!capable (CAP_SYS_BOOT))
345 panic("debugctl-invoked panic");
347 case IOC_PORTAL_MARK_DEBUG:
348 if (data->ioc_inlbuf1 == NULL ||
349 data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0')
351 portals_debug_mark_buffer(data->ioc_inlbuf1);
353 case IOC_PORTAL_PING: {
354 void (*ping)(struct portal_ioctl_data *);
356 CDEBUG(D_IOCTL, "doing %d pings to nid "LPU64"\n",
357 data->ioc_count, data->ioc_nid);
358 ping = PORTAL_SYMBOL_GET(kping_client);
360 CERROR("PORTAL_SYMBOL_GET failed\n");
363 PORTAL_SYMBOL_PUT(kping_client);
368 case IOC_PORTAL_ADD_ROUTE:
369 CDEBUG(D_IOCTL, "Adding route: [%d] "LPU64" : "LPU64" - "LPU64"\n",
370 data->ioc_nal, data->ioc_nid, data->ioc_nid2,
372 err = kportal_add_route(data->ioc_nal, data->ioc_nid,
373 MIN (data->ioc_nid2, data->ioc_nid3),
374 MAX (data->ioc_nid2, data->ioc_nid3));
377 case IOC_PORTAL_DEL_ROUTE:
378 CDEBUG (D_IOCTL, "Removing route to "LPU64"\n", data->ioc_nid);
379 err = kportal_del_route (data->ioc_nid);
382 case IOC_PORTAL_GET_ROUTE:
383 CDEBUG (D_IOCTL, "Getting route [%d]\n", data->ioc_count);
384 err = kportal_get_route(data->ioc_count, &data->ioc_nal,
385 &data->ioc_nid, &data->ioc_nid2,
388 if (copy_to_user((char *)arg, data, sizeof (*data)))
392 case IOC_PORTAL_GET_NID: {
393 const ptl_handle_ni_t *nip;
394 ptl_process_id_t pid;
396 CDEBUG (D_IOCTL, "Getting nid [%d]\n", data->ioc_nal);
398 nip = kportal_get_ni (data->ioc_nal);
402 err = PtlGetId (*nip, &pid);
403 LASSERT (err == PTL_OK);
404 kportal_put_ni (data->ioc_nal);
406 data->ioc_nid = pid.nid;
407 if (copy_to_user ((char *)arg, data, sizeof (*data)))
412 case IOC_PORTAL_NAL_CMD:
413 CDEBUG (D_IOCTL, "nal command nal %d cmd %d\n", data->ioc_nal,
415 err = kportal_nal_cmd(data->ioc_nal, data);
417 if (copy_to_user((char *)arg, data, sizeof (*data)))
421 case IOC_PORTAL_FAIL_NID: {
422 const ptl_handle_ni_t *nip;
424 CDEBUG (D_IOCTL, "fail nid: [%d] "LPU64" count %d\n",
425 data->ioc_nal, data->ioc_nid, data->ioc_count);
427 nip = kportal_get_ni (data->ioc_nal);
431 err = PtlFailNid (*nip, data->ioc_nid, data->ioc_count);
432 kportal_put_ni (data->ioc_nal);
445 static struct file_operations portalsdev_fops = {
446 ioctl: kportal_ioctl,
447 open: kportal_psdev_open,
448 release: kportal_psdev_release
452 static struct miscdevice portal_dev = {
458 extern int insert_proc(void);
459 extern void remove_proc(void);
460 MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
461 MODULE_DESCRIPTION("Portals v3.1");
462 MODULE_LICENSE("GPL");
464 static int init_kportals_module(void)
468 rc = portals_debug_init(5 * 1024 * 1024);
470 printk(KERN_ERR "portals_debug_init: %d\n", rc);
474 sema_init(&nal_cmd_sem, 1);
476 rc = misc_register(&portal_dev);
478 CERROR("misc_register: error %d\n", rc);
484 CERROR("PtlInit: error %d\n", rc);
485 goto cleanup_deregister;
490 CERROR("insert_proc: error %d\n", rc);
494 CDEBUG (D_OTHER, "portals setup OK\n");
500 misc_deregister(&portal_dev);
502 portals_debug_cleanup();
506 static void exit_kportals_module(void)
513 CDEBUG(D_MALLOC, "before Portals cleanup: kmem %d\n",
514 atomic_read(&portal_kmemory));
517 rc = misc_deregister(&portal_dev);
519 CERROR("misc_deregister error %d\n", rc);
521 if (atomic_read(&portal_kmemory) != 0)
522 CERROR("Portals memory leaked: %d bytes\n",
523 atomic_read(&portal_kmemory));
525 rc = portals_debug_cleanup();
527 printk(KERN_ERR "portals_debug_cleanup: %d\n", rc);
530 EXPORT_SYMBOL(lib_dispatch);
531 EXPORT_SYMBOL(PtlMEAttach);
532 EXPORT_SYMBOL(PtlMEInsert);
533 EXPORT_SYMBOL(PtlMEUnlink);
534 EXPORT_SYMBOL(PtlEQAlloc);
535 EXPORT_SYMBOL(PtlMDAttach);
536 EXPORT_SYMBOL(PtlMDUnlink);
537 EXPORT_SYMBOL(PtlNIInit);
538 EXPORT_SYMBOL(PtlNIFini);
539 EXPORT_SYMBOL(PtlNIDebug);
540 EXPORT_SYMBOL(PtlInit);
541 EXPORT_SYMBOL(PtlFini);
542 EXPORT_SYMBOL(PtlPut);
543 EXPORT_SYMBOL(PtlGet);
544 EXPORT_SYMBOL(ptl_err_str);
545 EXPORT_SYMBOL(portal_subsystem_debug);
546 EXPORT_SYMBOL(portal_debug);
547 EXPORT_SYMBOL(portal_stack);
548 EXPORT_SYMBOL(portal_printk);
549 EXPORT_SYMBOL(PtlEQWait);
550 EXPORT_SYMBOL(PtlEQFree);
551 EXPORT_SYMBOL(PtlEQGet);
552 EXPORT_SYMBOL(PtlGetId);
553 EXPORT_SYMBOL(PtlMDBind);
554 EXPORT_SYMBOL(lib_iov_nob);
555 EXPORT_SYMBOL(lib_copy_iov2buf);
556 EXPORT_SYMBOL(lib_copy_buf2iov);
557 EXPORT_SYMBOL(lib_kiov_nob);
558 EXPORT_SYMBOL(lib_copy_kiov2buf);
559 EXPORT_SYMBOL(lib_copy_buf2kiov);
560 EXPORT_SYMBOL(lib_finalize);
561 EXPORT_SYMBOL(lib_parse);
562 EXPORT_SYMBOL(lib_init);
563 EXPORT_SYMBOL(lib_fini);
564 EXPORT_SYMBOL(portal_kmemory);
565 EXPORT_SYMBOL(kportal_daemonize);
566 EXPORT_SYMBOL(kportal_blockallsigs);
567 EXPORT_SYMBOL(kportal_nal_register);
568 EXPORT_SYMBOL(kportal_nal_unregister);
569 EXPORT_SYMBOL(kportal_assertion_failed);
570 EXPORT_SYMBOL(dispatch_name);
571 EXPORT_SYMBOL(kportal_get_ni);
572 EXPORT_SYMBOL(kportal_put_ni);
574 module_init(init_kportals_module);
575 module_exit (exit_kportals_module);