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"
52 ptl_handle_ni_t tcpnal_ni;
53 struct task_struct *current;
55 /* portals interfaces */
57 kportal_get_ni (int nal)
69 kportal_put_ni (int nal)
74 struct ldlm_namespace;
78 void *inter_module_get(char *arg)
80 if (!strcmp(arg, "tcpnal_ni"))
82 else if (!strcmp(arg, "ldlm_cli_cancel_unused"))
83 return ldlm_cli_cancel_unused;
84 else if (!strcmp(arg, "ldlm_namespace_cleanup"))
85 return ldlm_namespace_cleanup;
86 else if (!strcmp(arg, "ldlm_replay_locks"))
87 return ldlm_replay_locks;
92 /* XXX move to proper place */
93 char *portals_nid2str(int nal, ptl_nid_t nid, char *str)
99 sprintf(str, "%u:%d.%d.%d.%d", (__u32)(nid >> 32),
106 sprintf(str, "%u:%u", (__u32)(nid >> 32), (__u32)nid);
114 void init_current(char *comm)
116 current = malloc(sizeof(*current));
117 current->fs = malloc(sizeof(*current->fs));
118 current->fs->umask = umask(0777);
119 umask(current->fs->umask);
120 strncpy(current->comm, comm, sizeof(current->comm));
121 current->pid = getpid();
124 current->cap_effective = -1;
125 memset(¤t->pending, 0, sizeof(current->pending));
129 void generate_random_uuid(unsigned char uuid_out[16])
131 int *arr = (int*)uuid_out;
134 for (i = 0; i < sizeof(uuid_out)/sizeof(int); i++)
138 ptl_nid_t tcpnal_mynid;
140 int init_lib_portals()
146 rc = PtlNIInit(procbridge_interface, 0, 0, 0, &tcpnal_ni);
148 CERROR("TCPNAL: PtlNIInit failed: error %d\n", rc);
152 PtlNIDebug(tcpnal_ni, ~0);
157 kportal_nal_cmd(struct portals_cfg *pcfg)
159 /* handle portals command if we want */
163 extern int class_handle_ioctl(unsigned int cmd, unsigned long arg);
165 int lib_ioctl_nalcmd(int dev_id, int opc, void * ptr)
167 struct portal_ioctl_data *ptldata;
169 if (opc == IOC_PORTAL_NAL_CMD) {
170 ptldata = (struct portal_ioctl_data *) ptr;
172 if (ptldata->ioc_nal_cmd == NAL_CMD_REGISTER_MYNID) {
173 tcpnal_mynid = ptldata->ioc_nid;
174 printf("mynid: %u.%u.%u.%u\n",
175 (unsigned)(tcpnal_mynid>>24) & 0xFF,
176 (unsigned)(tcpnal_mynid>>16) & 0xFF,
177 (unsigned)(tcpnal_mynid>>8) & 0xFF,
178 (unsigned)(tcpnal_mynid) & 0xFF);
185 int lib_ioctl(int dev_id, int opc, void * ptr)
189 if (dev_id == OBD_DEV_ID) {
190 struct obd_ioctl_data *ioc = ptr;
193 ioc->ioc_plen1 = ioc->ioc_inllen1;
194 ioc->ioc_pbuf1 = ioc->ioc_bulk;
197 rc = class_handle_ioctl(opc, (unsigned long)ptr);
199 printf ("proccssing ioctl cmd: %x, rc %d\n", opc, rc);
207 int lllib_init(char *dumpfile)
210 /* this parse only get my nid from config file
211 * before initialize portals
213 if (parse_dump(dumpfile, lib_ioctl_nalcmd))
216 /* XXX need setup mynid before tcpnal initialize */
217 tcpnal_mynid = ((uint64_t)getpid() << 32) | time(0);
218 printf("LibLustre: TCPNAL NID: %016llx\n", tcpnal_mynid);
221 init_current("dummy");
222 if (init_obdclass() ||
223 init_lib_portals() ||
231 if (!g_zconf && parse_dump(dumpfile, lib_ioctl))
234 return _sysio_fssw_register("llite", &llu_fssw_ops);
238 static void llu_check_request()
240 liblustre_wait_event(0);
244 int liblustre_process_log(struct config_llog_instance *cfg, int allow_recov)
246 struct lustre_cfg lcfg;
247 char *peer = "MDS_PEER_UUID";
248 struct obd_device *obd;
249 struct lustre_handle mdc_conn = {0, };
250 struct obd_export *exp;
251 char *name = "mdc_dev";
253 struct obd_uuid mdc_uuid;
254 struct llog_ctxt *ctxt;
256 int nal, err, rc = 0;
259 generate_random_uuid(uuid);
260 class_uuid_unparse(uuid, &mdc_uuid);
262 if (ptl_parse_nid(&nid, g_zconf_mdsnid)) {
263 CERROR("Can't parse NID %s\n", g_zconf_mdsnid);
266 nal = ptl_name2nal("tcp");
268 CERROR("Can't parse NAL tcp\n");
271 LCFG_INIT(lcfg, LCFG_ADD_UUID, NULL);
273 lcfg.lcfg_inllen1 = strlen(peer) + 1;
274 lcfg.lcfg_inlbuf1 = peer;
276 err = class_process_config(&lcfg);
280 LCFG_INIT(lcfg, LCFG_ATTACH, name);
281 lcfg.lcfg_inlbuf1 = "mdc";
282 lcfg.lcfg_inllen1 = strlen(lcfg.lcfg_inlbuf1) + 1;
283 lcfg.lcfg_inlbuf2 = mdc_uuid.uuid;
284 lcfg.lcfg_inllen2 = strlen(lcfg.lcfg_inlbuf2) + 1;
285 err = class_process_config(&lcfg);
287 GOTO(out_del_uuid, err);
289 LCFG_INIT(lcfg, LCFG_SETUP, name);
290 lcfg.lcfg_inlbuf1 = g_zconf_mdsname;
291 lcfg.lcfg_inllen1 = strlen(lcfg.lcfg_inlbuf1) + 1;
292 lcfg.lcfg_inlbuf2 = peer;
293 lcfg.lcfg_inllen2 = strlen(lcfg.lcfg_inlbuf2) + 1;
294 err = class_process_config(&lcfg);
296 GOTO(out_detach, err);
298 obd = class_name2obd(name);
300 GOTO(out_cleanup, err = -EINVAL);
302 /* Disable initial recovery on this import */
303 err = obd_set_info(obd->obd_self_export,
304 strlen("initial_recov"), "initial_recov",
305 sizeof(allow_recov), &allow_recov);
307 err = obd_connect(&mdc_conn, obd, &mdc_uuid);
309 CERROR("cannot connect to %s: rc = %d\n",
310 g_zconf_mdsname, err);
311 GOTO(out_cleanup, err);
314 exp = class_conn2export(&mdc_conn);
316 ctxt = exp->exp_obd->obd_llog_ctxt[LLOG_CONFIG_REPL_CTXT];
317 rc = class_config_parse_llog(ctxt, g_zconf_profile, cfg);
319 CERROR("class_config_parse_llog failed: rc = %d\n", rc);
322 err = obd_disconnect(exp, 0);
325 LCFG_INIT(lcfg, LCFG_CLEANUP, name);
326 err = class_process_config(&lcfg);
331 LCFG_INIT(lcfg, LCFG_DETACH, name);
332 err = class_process_config(&lcfg);
337 LCFG_INIT(lcfg, LCFG_DEL_UUID, name);
338 lcfg.lcfg_inllen1 = strlen(peer) + 1;
339 lcfg.lcfg_inlbuf1 = peer;
340 err = class_process_config(&lcfg);
349 static void sighandler_USR1(int signum)
354 /* parse host:/mdsname/profile string */
355 int ll_parse_mount_target(const char *target, char **mdsnid,
356 char **mdsname, char **profile)
358 static char buf[256];
362 strncpy(buf, target, 255);
364 if ((s = strchr(buf, ':'))) {
371 if ((s = strchr(*mdsname, '/'))) {
382 #define ENV_LUSTRE_MNTPNT "LIBLUSTRE_MOUNT_POINT"
383 #define ENV_LUSTRE_MNTTGT "LIBLUSTRE_MOUNT_TARGET"
384 #define ENV_LUSTRE_TIMEOUT "LIBLUSTRE_TIMEOUT"
385 #define ENV_LUSTRE_DUMPFILE "LIBLUSTRE_DUMPFILE"
387 extern int _sysio_native_init();
389 extern unsigned int obd_timeout;
391 /* global variables */
392 int g_zconf = 0; /* zeroconf or dumpfile */
393 char *g_zconf_mdsname = NULL; /* mdsname, for zeroconf */
394 char *g_zconf_mdsnid = NULL; /* mdsnid, for zeroconf */
395 char *g_zconf_profile = NULL; /* profile, for zeroconf */
398 void __liblustre_setup_(void)
400 char *lustre_path = NULL;
402 char *timeout = NULL;
403 char *dumpfile = NULL;
404 char *root_driver = "native";
405 char *lustre_driver = "llite";
406 char *root_path = "/";
407 unsigned mntflgs = 0;
411 /* consider tha case of starting multiple liblustre instances
412 * at a same time on single node.
414 srand(time(NULL) + getpid());
416 signal(SIGUSR1, sighandler_USR1);
418 lustre_path = getenv(ENV_LUSTRE_MNTPNT);
420 lustre_path = "/mnt/lustre";
423 target = getenv(ENV_LUSTRE_MNTTGT);
425 dumpfile = getenv(ENV_LUSTRE_DUMPFILE);
427 CERROR("Neither mount target, nor dumpfile\n");
431 printf("LibLustre: mount point %s, dumpfile %s\n",
432 lustre_path, dumpfile);
434 if (ll_parse_mount_target(target,
438 CERROR("mal-formed target %s \n", target);
442 printf("LibLustre: mount point %s, target %s\n",
443 lustre_path, target);
446 timeout = getenv(ENV_LUSTRE_TIMEOUT);
448 obd_timeout = (unsigned int) atoi(timeout);
449 printf("LibLustre: set obd timeout as %u seconds\n",
453 if (_sysio_init() != 0) {
454 perror("init sysio");
458 /* cygwin don't need native driver */
460 _sysio_native_init();
463 err = _sysio_mount_root(root_path, root_driver, mntflgs, NULL);
471 portal_subsystem_debug = 0;
473 err = lllib_init(dumpfile);
475 perror("init llite driver");
479 err = mount("/", lustre_path, lustre_driver, mntflgs, NULL);
482 perror(lustre_driver);
487 __sysio_hook_sys_enter = llu_check_request;
488 __sysio_hook_sys_leave = NULL;
492 void __liblustre_cleanup_(void)