1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Lustre Light Super operations
6 * Copyright (c) 2002, 2003 Cluster File Systems, Inc.
8 * This file is part of Lustre, http://www.lustre.org.
10 * Lustre is free software; you can redistribute it and/or
11 * modify it under the terms of version 2 of the GNU General Public
12 * License as published by the Free Software Foundation.
14 * Lustre is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with Lustre; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <sys/types.h>
28 #include <sys/queue.h>
30 #include <netinet/in.h>
31 #include <sys/socket.h>
32 #include <arpa/inet.h>
40 /* both sys/queue.h (libsysio require it) and portals/lists.h have definition
41 * of 'LIST_HEAD'. undef it to suppress warnings
45 #include <portals/api-support.h> /* needed for ptpctl.h */
46 #include <portals/ptlctl.h> /* needed for parse_dump */
47 #include <procbridge.h>
49 #include "llite_lib.h"
51 unsigned int portal_subsystem_debug = ~0 - (S_PORTALS | S_QSWNAL | S_SOCKNAL |
54 ptl_handle_ni_t tcpnal_ni;
55 struct task_struct *current;
57 /* portals interfaces */
59 kportal_get_ni (int nal)
71 kportal_put_ni (int nal)
76 struct ldlm_namespace;
80 void *inter_module_get(char *arg)
82 if (!strcmp(arg, "tcpnal_ni"))
84 else if (!strcmp(arg, "ldlm_cli_cancel_unused"))
85 return ldlm_cli_cancel_unused;
86 else if (!strcmp(arg, "ldlm_namespace_cleanup"))
87 return ldlm_namespace_cleanup;
88 else if (!strcmp(arg, "ldlm_replay_locks"))
89 return ldlm_replay_locks;
94 /* XXX move to proper place */
95 char *portals_nid2str(int nal, ptl_nid_t nid, char *str)
101 sprintf(str, "%u:%d.%d.%d.%d", (__u32)(nid >> 32),
108 sprintf(str, "%u:%u", (__u32)(nid >> 32), (__u32)nid);
116 void init_current(char *comm)
118 current = malloc(sizeof(*current));
119 current->fs = malloc(sizeof(*current->fs));
120 current->fs->umask = umask(0777);
121 umask(current->fs->umask);
122 strncpy(current->comm, comm, sizeof(current->comm));
123 current->pid = getpid();
126 current->cap_effective = -1;
127 memset(¤t->pending, 0, sizeof(current->pending));
131 void generate_random_uuid(unsigned char uuid_out[16])
133 int *arr = (int*)uuid_out;
136 for (i = 0; i < sizeof(uuid_out)/sizeof(int); i++)
140 ptl_nid_t tcpnal_mynid;
142 int init_lib_portals()
148 PtlInit(&max_interfaces);
149 rc = PtlNIInit(procbridge_interface, 0, 0, 0, &tcpnal_ni);
151 CERROR("TCPNAL: PtlNIInit failed: error %d\n", rc);
155 PtlNIDebug(tcpnal_ni, ~0);
160 kportal_nal_cmd(struct portals_cfg *pcfg)
162 /* handle portals command if we want */
166 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
168 int lib_ioctl_nalcmd(int dev_id, int opc, void * ptr)
170 struct portal_ioctl_data *ptldata;
172 if (opc == IOC_PORTAL_NAL_CMD) {
173 ptldata = (struct portal_ioctl_data *) ptr;
175 if (ptldata->ioc_nal_cmd == NAL_CMD_REGISTER_MYNID) {
176 tcpnal_mynid = ptldata->ioc_nid;
177 printf("mynid: %u.%u.%u.%u\n",
178 (unsigned)(tcpnal_mynid>>24) & 0xFF,
179 (unsigned)(tcpnal_mynid>>16) & 0xFF,
180 (unsigned)(tcpnal_mynid>>8) & 0xFF,
181 (unsigned)(tcpnal_mynid) & 0xFF);
188 int lib_ioctl(int dev_id, int opc, void * ptr)
192 if (dev_id == OBD_DEV_ID) {
193 struct obd_ioctl_data *ioc = ptr;
196 ioc->ioc_plen1 = ioc->ioc_inllen1;
197 ioc->ioc_pbuf1 = ioc->ioc_bulk;
200 rc = class_handle_ioctl(opc, (unsigned long)ptr);
202 printf ("proccssing ioctl cmd: %x, rc %d\n", opc, rc);
210 int lllib_init(char *dumpfile)
213 /* this parse only get my nid from config file
214 * before initialize portals
216 if (parse_dump(dumpfile, lib_ioctl_nalcmd))
219 /* XXX need setup mynid before tcpnal initialize */
220 tcpnal_mynid = ((uint64_t)getpid() << 32) | time(0);
221 printf("LibLustre: TCPNAL NID: %016llx\n", tcpnal_mynid);
224 init_current("dummy");
225 if (init_obdclass() ||
226 init_lib_portals() ||
234 if (!g_zconf && parse_dump(dumpfile, lib_ioctl))
237 return _sysio_fssw_register("llite", &llu_fssw_ops);
241 static void llu_check_request()
243 liblustre_wait_event(0);
247 int liblustre_process_log(struct config_llog_instance *cfg, int allow_recov)
249 struct lustre_cfg lcfg;
250 char *peer = "MDS_PEER_UUID";
251 struct obd_device *obd;
252 struct lustre_handle mdc_conn = {0, };
253 struct obd_export *exp;
254 char *name = "mdc_dev";
256 struct obd_uuid mdc_uuid;
257 struct llog_ctxt *ctxt;
259 int nal, err, rc = 0;
262 generate_random_uuid(uuid);
263 class_uuid_unparse(uuid, &mdc_uuid);
265 if (ptl_parse_nid(&nid, g_zconf_mdsnid)) {
266 CERROR("Can't parse NID %s\n", g_zconf_mdsnid);
269 nal = ptl_name2nal("tcp");
271 CERROR("Can't parse NAL tcp\n");
274 LCFG_INIT(lcfg, LCFG_ADD_UUID, NULL);
276 lcfg.lcfg_inllen1 = strlen(peer) + 1;
277 lcfg.lcfg_inlbuf1 = peer;
279 err = class_process_config(&lcfg);
283 LCFG_INIT(lcfg, LCFG_ATTACH, name);
284 lcfg.lcfg_inlbuf1 = "mdc";
285 lcfg.lcfg_inllen1 = strlen(lcfg.lcfg_inlbuf1) + 1;
286 lcfg.lcfg_inlbuf2 = mdc_uuid.uuid;
287 lcfg.lcfg_inllen2 = strlen(lcfg.lcfg_inlbuf2) + 1;
288 err = class_process_config(&lcfg);
290 GOTO(out_del_uuid, err);
292 LCFG_INIT(lcfg, LCFG_SETUP, name);
293 lcfg.lcfg_inlbuf1 = g_zconf_mdsname;
294 lcfg.lcfg_inllen1 = strlen(lcfg.lcfg_inlbuf1) + 1;
295 lcfg.lcfg_inlbuf2 = peer;
296 lcfg.lcfg_inllen2 = strlen(lcfg.lcfg_inlbuf2) + 1;
297 err = class_process_config(&lcfg);
299 GOTO(out_detach, err);
301 obd = class_name2obd(name);
303 GOTO(out_cleanup, err = -EINVAL);
305 /* Disable initial recovery on this import */
306 err = obd_set_info(obd->obd_self_export,
307 strlen("initial_recov"), "initial_recov",
308 sizeof(allow_recov), &allow_recov);
310 err = obd_connect(&mdc_conn, obd, &mdc_uuid);
312 CERROR("cannot connect to %s: rc = %d\n",
313 g_zconf_mdsname, err);
314 GOTO(out_cleanup, err);
317 exp = class_conn2export(&mdc_conn);
319 ctxt = exp->exp_obd->obd_llog_ctxt[LLOG_CONFIG_REPL_CTXT];
320 rc = class_config_parse_llog(ctxt, g_zconf_profile, cfg);
322 CERROR("class_config_parse_llog failed: rc = %d\n", rc);
325 err = obd_disconnect(exp, 0);
328 LCFG_INIT(lcfg, LCFG_CLEANUP, name);
329 err = class_process_config(&lcfg);
334 LCFG_INIT(lcfg, LCFG_DETACH, name);
335 err = class_process_config(&lcfg);
340 LCFG_INIT(lcfg, LCFG_DEL_UUID, name);
341 lcfg.lcfg_inllen1 = strlen(peer) + 1;
342 lcfg.lcfg_inlbuf1 = peer;
343 err = class_process_config(&lcfg);
352 static void sighandler_USR1(int signum)
357 /* parse host:/mdsname/profile string */
358 int ll_parse_mount_target(const char *target, char **mdsnid,
359 char **mdsname, char **profile)
361 static char buf[256];
365 strncpy(buf, target, 255);
367 if ((s = strchr(buf, ':'))) {
374 if ((s = strchr(*mdsname, '/'))) {
385 #define ENV_LUSTRE_MNTPNT "LIBLUSTRE_MOUNT_POINT"
386 #define ENV_LUSTRE_MNTTGT "LIBLUSTRE_MOUNT_TARGET"
387 #define ENV_LUSTRE_TIMEOUT "LIBLUSTRE_TIMEOUT"
388 #define ENV_LUSTRE_DUMPFILE "LIBLUSTRE_DUMPFILE"
390 extern int _sysio_native_init();
392 extern unsigned int obd_timeout;
394 /* global variables */
395 int g_zconf = 0; /* zeroconf or dumpfile */
396 char *g_zconf_mdsname = NULL; /* mdsname, for zeroconf */
397 char *g_zconf_mdsnid = NULL; /* mdsnid, for zeroconf */
398 char *g_zconf_profile = NULL; /* profile, for zeroconf */
401 void __liblustre_setup_(void)
403 char *lustre_path = NULL;
405 char *timeout = NULL;
406 char *dumpfile = NULL;
407 char *root_driver = "native";
408 char *lustre_driver = "llite";
409 char *root_path = "/";
410 unsigned mntflgs = 0;
414 /* consider tha case of starting multiple liblustre instances
415 * at a same time on single node.
417 srand(time(NULL) + getpid());
419 signal(SIGUSR1, sighandler_USR1);
421 lustre_path = getenv(ENV_LUSTRE_MNTPNT);
423 lustre_path = "/mnt/lustre";
426 target = getenv(ENV_LUSTRE_MNTTGT);
428 dumpfile = getenv(ENV_LUSTRE_DUMPFILE);
430 CERROR("Neither mount target, nor dumpfile\n");
434 printf("LibLustre: mount point %s, dumpfile %s\n",
435 lustre_path, dumpfile);
437 if (ll_parse_mount_target(target,
441 CERROR("mal-formed target %s \n", target);
445 printf("LibLustre: mount point %s, target %s\n",
446 lustre_path, target);
449 timeout = getenv(ENV_LUSTRE_TIMEOUT);
451 obd_timeout = (unsigned int) atoi(timeout);
452 printf("LibLustre: set obd timeout as %u seconds\n",
456 if (_sysio_init() != 0) {
457 perror("init sysio");
461 /* cygwin don't need native driver */
463 _sysio_native_init();
466 err = _sysio_mount_root(root_path, root_driver, mntflgs, NULL);
474 portal_subsystem_debug = 0;
476 err = lllib_init(dumpfile);
478 perror("init llite driver");
482 err = mount("/", lustre_path, lustre_driver, mntflgs, NULL);
485 perror(lustre_driver);
490 __sysio_hook_sys_enter = llu_check_request;
491 __sysio_hook_sys_leave = NULL;
495 void __liblustre_cleanup_(void)