-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <net/sock.h>
+#include <linux/uio.h>
+#include <linux/uaccess.h>
+
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/list.h>
+
+#include <linux/sysctl.h>
+#include <linux/proc_fs.h>
+#include <asm/div64.h>
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_LNET
#include <libcfs/libcfs.h>
+#include <libcfs/libcfs_crypto.h>
#include <lnet/lib-lnet.h>
-#include <lnet/lnet.h>
#include "tracefile.h"
-void
-kportal_memhog_free (struct libcfs_device_userstate *ldu)
-{
- cfs_page_t **level0p = &ldu->ldu_memhog_root_page;
- cfs_page_t **level1p;
- cfs_page_t **level2p;
- int count1;
- int count2;
-
- if (*level0p != NULL) {
-
- level1p = (cfs_page_t **)cfs_page_address(*level0p);
- count1 = 0;
+#ifdef CONFIG_SYSCTL
+static struct ctl_table_header *lnet_table_header;
+#endif
- while (count1 < CFS_PAGE_SIZE/sizeof(cfs_page_t *) &&
- *level1p != NULL) {
+static DECLARE_RWSEM(ioctl_list_sem);
+static LIST_HEAD(ioctl_list);
- level2p = (cfs_page_t **)cfs_page_address(*level1p);
- count2 = 0;
+int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand)
+{
+ int rc = 0;
- while (count2 < CFS_PAGE_SIZE/sizeof(cfs_page_t *) &&
- *level2p != NULL) {
+ down_write(&ioctl_list_sem);
+ if (!list_empty(&hand->item))
+ rc = -EBUSY;
+ else
+ list_add_tail(&hand->item, &ioctl_list);
+ up_write(&ioctl_list_sem);
- cfs_free_page(*level2p);
- ldu->ldu_memhog_pages--;
- level2p++;
- count2++;
- }
+ return rc;
+}
+EXPORT_SYMBOL(libcfs_register_ioctl);
- cfs_free_page(*level1p);
- ldu->ldu_memhog_pages--;
- level1p++;
- count1++;
- }
+int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand)
+{
+ int rc = 0;
- cfs_free_page(*level0p);
- ldu->ldu_memhog_pages--;
+ down_write(&ioctl_list_sem);
+ if (list_empty(&hand->item))
+ rc = -ENOENT;
+ else
+ list_del_init(&hand->item);
+ up_write(&ioctl_list_sem);
- *level0p = NULL;
- }
+ return rc;
+}
+EXPORT_SYMBOL(libcfs_deregister_ioctl);
- LASSERT (ldu->ldu_memhog_pages == 0);
+int libcfs_ioctl(unsigned long cmd, void __user *uparam)
+{
+ struct libcfs_ioctl_data *data = NULL;
+ struct libcfs_ioctl_hdr *hdr;
+ int err;
+ ENTRY;
+
+ /* 'cmd' and permissions get checked in our arch-specific caller */
+ err = libcfs_ioctl_getdata(&hdr, uparam);
+ if (err != 0) {
+ CDEBUG_LIMIT(D_ERROR,
+ "libcfs ioctl: data header error %d\n", err);
+ RETURN(err);
+ }
+
+ if (hdr->ioc_version == LIBCFS_IOCTL_VERSION) {
+ /* The libcfs_ioctl_data_adjust() function performs adjustment
+ * operations on the libcfs_ioctl_data structure to make
+ * it usable by the code. This doesn't need to be called
+ * for new data structures added. */
+ data = container_of(hdr, struct libcfs_ioctl_data, ioc_hdr);
+ err = libcfs_ioctl_data_adjust(data);
+ if (err != 0)
+ GOTO(out, err);
+ }
+
+ CDEBUG(D_IOCTL, "libcfs ioctl cmd %lu\n", cmd);
+ switch (cmd) {
+ case IOC_LIBCFS_CLEAR_DEBUG:
+ libcfs_debug_clear_buffer();
+ break;
+ case IOC_LIBCFS_MARK_DEBUG:
+ if (data == NULL ||
+ data->ioc_inlbuf1 == NULL ||
+ data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0')
+ GOTO(out, err = -EINVAL);
+
+ libcfs_debug_mark_buffer(data->ioc_inlbuf1);
+ break;
+
+ default: {
+ struct libcfs_ioctl_handler *hand;
+
+ err = -EINVAL;
+ down_read(&ioctl_list_sem);
+ list_for_each_entry(hand, &ioctl_list, item) {
+ err = hand->handle_ioctl(cmd, hdr);
+ if (err == -EINVAL)
+ continue;
+
+ if (err == 0) {
+ if (copy_to_user(uparam, hdr, hdr->ioc_len))
+ err = -EFAULT;
+ }
+ break;
+ }
+ up_read(&ioctl_list_sem);
+ break; }
+ }
+out:
+ LIBCFS_FREE(hdr, hdr->ioc_len);
+ RETURN(err);
}
int
-kportal_memhog_alloc (struct libcfs_device_userstate *ldu, int npages, int flags)
+lprocfs_call_handler(void *data, int write, loff_t *ppos,
+ void __user *buffer, size_t *lenp,
+ int (*handler)(void *data, int write, loff_t pos,
+ void __user *buffer, int len))
{
- cfs_page_t **level0p;
- cfs_page_t **level1p;
- cfs_page_t **level2p;
- int count1;
- int count2;
+ int rc = handler(data, write, *ppos, buffer, *lenp);
+
+ if (rc < 0)
+ return rc;
+
+ if (write) {
+ *ppos += *lenp;
+ } else {
+ *lenp = rc;
+ *ppos += rc;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(lprocfs_call_handler);
- LASSERT (ldu->ldu_memhog_pages == 0);
- LASSERT (ldu->ldu_memhog_root_page == NULL);
+static int __proc_dobitmasks(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
+{
+ const int tmpstrlen = 512;
+ char *tmpstr;
+ int rc;
+ unsigned int *mask = data;
+ int is_subsys = (mask == &libcfs_subsystem_debug) ? 1 : 0;
+ int is_printk = (mask == &libcfs_printk) ? 1 : 0;
+
+ rc = cfs_trace_allocate_string_buffer(&tmpstr, tmpstrlen);
+ if (rc < 0)
+ return rc;
+
+ if (!write) {
+ libcfs_debug_mask2str(tmpstr, tmpstrlen, *mask, is_subsys);
+ rc = strlen(tmpstr);
+
+ if (pos >= rc) {
+ rc = 0;
+ } else {
+ rc = cfs_trace_copyout_string(buffer, nob,
+ tmpstr + pos, "\n");
+ }
+ } else {
+ rc = cfs_trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
+ if (rc < 0) {
+ kfree(tmpstr);
+ return rc;
+ }
+
+ rc = libcfs_debug_str2mask(mask, tmpstr, is_subsys);
+ /* Always print LBUG/LASSERT to console, so keep this mask */
+ if (is_printk)
+ *mask |= D_EMERG;
+ }
+
+ kfree(tmpstr);
+ return rc;
+}
- if (npages < 0)
- return -EINVAL;
+static int
+proc_dobitmasks(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ return lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_dobitmasks);
+}
- if (npages == 0)
- return 0;
+static int min_watchdog_ratelimit; /* disable ratelimiting */
+static int max_watchdog_ratelimit = (24*60*60); /* limit to once per day */
- level0p = &ldu->ldu_memhog_root_page;
- *level0p = cfs_alloc_page(flags);
- if (*level0p == NULL)
- return -ENOMEM;
- ldu->ldu_memhog_pages++;
+static int __proc_dump_kernel(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
+{
+ if (!write)
+ return 0;
- level1p = (cfs_page_t **)cfs_page_address(*level0p);
- count1 = 0;
- memset(level1p, 0, CFS_PAGE_SIZE);
+ return cfs_trace_dump_debug_buffer_usrstr(buffer, nob);
+}
- while (ldu->ldu_memhog_pages < npages &&
- count1 < CFS_PAGE_SIZE/sizeof(cfs_page_t *)) {
+static int
+proc_dump_kernel(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ return lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_dump_kernel);
+}
- if (cfs_signal_pending())
- return (-EINTR);
+static int __proc_daemon_file(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
+{
+ if (!write) {
+ int len = strlen(cfs_tracefile);
- *level1p = cfs_alloc_page(flags);
- if (*level1p == NULL)
- return -ENOMEM;
- ldu->ldu_memhog_pages++;
+ if (pos >= len)
+ return 0;
- level2p = (cfs_page_t **)cfs_page_address(*level1p);
- count2 = 0;
- memset(level2p, 0, CFS_PAGE_SIZE);
+ return cfs_trace_copyout_string(buffer, nob,
+ cfs_tracefile + pos, "\n");
+ }
- while (ldu->ldu_memhog_pages < npages &&
- count2 < CFS_PAGE_SIZE/sizeof(cfs_page_t *)) {
+ return cfs_trace_daemon_command_usrstr(buffer, nob);
+}
- if (cfs_signal_pending())
- return (-EINTR);
+static int
+proc_daemon_file(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ return lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_daemon_file);
+}
- *level2p = cfs_alloc_page(flags);
- if (*level2p == NULL)
- return (-ENOMEM);
- ldu->ldu_memhog_pages++;
+static int __proc_debug_mb(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
+{
+ if (!write) {
+ char tmpstr[32];
+ int len = snprintf(tmpstr, sizeof(tmpstr), "%d",
+ cfs_trace_get_debug_mb());
- level2p++;
- count2++;
- }
+ if (pos >= len)
+ return 0;
- level1p++;
- count1++;
- }
+ return cfs_trace_copyout_string(buffer, nob, tmpstr + pos,
+ "\n");
+ }
- return 0;
+ return cfs_trace_set_debug_mb_usrstr(buffer, nob);
}
-/* called when opening /dev/device */
-static int libcfs_psdev_open(unsigned long flags, void *args)
+static int
+proc_debug_mb(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
{
- struct libcfs_device_userstate *ldu;
- ENTRY;
-
- PORTAL_MODULE_USE;
+ return lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_debug_mb);
+}
- LIBCFS_ALLOC(ldu, sizeof(*ldu));
- if (ldu != NULL) {
- ldu->ldu_memhog_pages = 0;
- ldu->ldu_memhog_root_page = NULL;
- }
- *(struct libcfs_device_userstate **)args = ldu;
+static int
+proc_console_max_delay_cs(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ int rc, max_delay_cs;
+ struct ctl_table dummy = *table;
+ cfs_duration_t d;
+
+ dummy.data = &max_delay_cs;
+ dummy.proc_handler = &proc_dointvec;
+
+ if (!write) { /* read */
+ max_delay_cs = cfs_duration_sec(libcfs_console_max_delay * 100);
+ rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+ return rc;
+ }
+
+ /* write */
+ max_delay_cs = 0;
+ rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+ if (rc < 0)
+ return rc;
+ if (max_delay_cs <= 0)
+ return -EINVAL;
+
+ d = cfs_time_seconds(max_delay_cs) / 100;
+ if (d == 0 || d < libcfs_console_min_delay)
+ return -EINVAL;
+ libcfs_console_max_delay = d;
+
+ return rc;
+}
- RETURN(0);
+static int
+proc_console_min_delay_cs(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ int rc, min_delay_cs;
+ struct ctl_table dummy = *table;
+ cfs_duration_t d;
+
+ dummy.data = &min_delay_cs;
+ dummy.proc_handler = &proc_dointvec;
+
+ if (!write) { /* read */
+ min_delay_cs = cfs_duration_sec(libcfs_console_min_delay * 100);
+ rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+ return rc;
+ }
+
+ /* write */
+ min_delay_cs = 0;
+ rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+ if (rc < 0)
+ return rc;
+ if (min_delay_cs <= 0)
+ return -EINVAL;
+
+ d = cfs_time_seconds(min_delay_cs) / 100;
+ if (d == 0 || d > libcfs_console_max_delay)
+ return -EINVAL;
+ libcfs_console_min_delay = d;
+
+ return rc;
}
-/* called when closing /dev/device */
-static int libcfs_psdev_release(unsigned long flags, void *args)
+static int
+proc_console_backoff(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
{
- struct libcfs_device_userstate *ldu;
- ENTRY;
+ int rc, backoff;
+ struct ctl_table dummy = *table;
- ldu = (struct libcfs_device_userstate *)args;
- if (ldu != NULL) {
- kportal_memhog_free(ldu);
- LIBCFS_FREE(ldu, sizeof(*ldu));
- }
+ dummy.data = &backoff;
+ dummy.proc_handler = &proc_dointvec;
- PORTAL_MODULE_UNUSE;
- RETURN(0);
-}
+ if (!write) { /* read */
+ backoff = libcfs_console_backoff;
+ rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+ return rc;
+ }
-static cfs_rw_semaphore_t ioctl_list_sem;
-static cfs_list_t ioctl_list;
+ /* write */
+ backoff = 0;
+ rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+ if (rc < 0)
+ return rc;
-int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand)
-{
- int rc = 0;
+ if (backoff <= 0)
+ return -EINVAL;
- cfs_down_write(&ioctl_list_sem);
- if (!cfs_list_empty(&hand->item))
- rc = -EBUSY;
- else
- cfs_list_add_tail(&hand->item, &ioctl_list);
- cfs_up_write(&ioctl_list_sem);
+ libcfs_console_backoff = backoff;
- return rc;
+ return rc;
}
-EXPORT_SYMBOL(libcfs_register_ioctl);
-int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand)
+static int
+libcfs_force_lbug(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
{
- int rc = 0;
+ if (write)
+ LBUG();
+ return 0;
+}
- cfs_down_write(&ioctl_list_sem);
- if (cfs_list_empty(&hand->item))
- rc = -ENOENT;
- else
- cfs_list_del_init(&hand->item);
- cfs_up_write(&ioctl_list_sem);
+static int
+proc_fail_loc(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ int rc;
+ long old_fail_loc = cfs_fail_loc;
- return rc;
+ rc = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
+ if (old_fail_loc != cfs_fail_loc)
+ wake_up(&cfs_race_waitq);
+ return rc;
}
-EXPORT_SYMBOL(libcfs_deregister_ioctl);
-static int libcfs_ioctl_int(struct cfs_psdev_file *pfile,unsigned long cmd,
- void *arg, struct libcfs_ioctl_data *data)
+static int __proc_cpt_table(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
{
- int err = -EINVAL;
- ENTRY;
-
- switch (cmd) {
- case IOC_LIBCFS_CLEAR_DEBUG:
- libcfs_debug_clear_buffer();
- RETURN(0);
- /*
- * case IOC_LIBCFS_PANIC:
- * Handled in arch/cfs_module.c
- */
- case IOC_LIBCFS_MARK_DEBUG:
- if (data->ioc_inlbuf1 == NULL ||
- data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0')
- RETURN(-EINVAL);
- libcfs_debug_mark_buffer(data->ioc_inlbuf1);
- RETURN(0);
-#if LWT_SUPPORT
- case IOC_LIBCFS_LWT_CONTROL:
- err = lwt_control ((data->ioc_flags & 1) != 0,
- (data->ioc_flags & 2) != 0);
- break;
-
- case IOC_LIBCFS_LWT_SNAPSHOT: {
- cfs_cycles_t now;
- int ncpu;
- int total_size;
-
- err = lwt_snapshot (&now, &ncpu, &total_size,
- data->ioc_pbuf1, data->ioc_plen1);
- data->ioc_u64[0] = now;
- data->ioc_u32[0] = ncpu;
- data->ioc_u32[1] = total_size;
-
- /* Hedge against broken user/kernel typedefs (e.g. cycles_t) */
- data->ioc_u32[2] = sizeof(lwt_event_t);
- data->ioc_u32[3] = offsetof(lwt_event_t, lwte_where);
-
- if (err == 0 &&
- libcfs_ioctl_popdata(arg, data, sizeof (*data)))
- err = -EFAULT;
- break;
- }
-
- case IOC_LIBCFS_LWT_LOOKUP_STRING:
- err = lwt_lookup_string (&data->ioc_count, data->ioc_pbuf1,
- data->ioc_pbuf2, data->ioc_plen2);
- if (err == 0 &&
- libcfs_ioctl_popdata(arg, data, sizeof (*data)))
- err = -EFAULT;
- break;
-#endif
- case IOC_LIBCFS_MEMHOG:
- if (pfile->private_data == NULL) {
- err = -EINVAL;
- } else {
- kportal_memhog_free(pfile->private_data);
- /* XXX The ioc_flags is not GFP flags now, need to be fixed */
- err = kportal_memhog_alloc(pfile->private_data,
- data->ioc_count,
- data->ioc_flags);
- if (err != 0)
- kportal_memhog_free(pfile->private_data);
- }
- break;
-
- case IOC_LIBCFS_PING_TEST: {
- extern void (kping_client)(struct libcfs_ioctl_data *);
- void (*ping)(struct libcfs_ioctl_data *);
-
- CDEBUG(D_IOCTL, "doing %d pings to nid %s (%s)\n",
- data->ioc_count, libcfs_nid2str(data->ioc_nid),
- libcfs_nid2str(data->ioc_nid));
- ping = PORTAL_SYMBOL_GET(kping_client);
- if (!ping)
- CERROR("PORTAL_SYMBOL_GET failed\n");
- else {
- ping(data);
- PORTAL_SYMBOL_PUT(kping_client);
- }
- RETURN(0);
- }
-
- default: {
- struct libcfs_ioctl_handler *hand;
- err = -EINVAL;
- cfs_down_read(&ioctl_list_sem);
- cfs_list_for_each_entry_typed(hand, &ioctl_list,
- struct libcfs_ioctl_handler, item) {
- err = hand->handle_ioctl(cmd, data);
- if (err != -EINVAL) {
- if (err == 0)
- err = libcfs_ioctl_popdata(arg,
- data, sizeof (*data));
- break;
- }
- }
- cfs_up_read(&ioctl_list_sem);
- break;
- }
- }
-
- RETURN(err);
+ char *buf = NULL;
+ int len = 4096;
+ int rc = 0;
+
+ if (write)
+ return -EPERM;
+
+ LASSERT(cfs_cpt_table != NULL);
+
+ while (1) {
+ LIBCFS_ALLOC(buf, len);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ rc = cfs_cpt_table_print(cfs_cpt_table, buf, len);
+ if (rc >= 0)
+ break;
+
+ if (rc == -EFBIG) {
+ LIBCFS_FREE(buf, len);
+ len <<= 1;
+ continue;
+ }
+ goto out;
+ }
+
+ if (pos >= rc) {
+ rc = 0;
+ goto out;
+ }
+
+ rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
+out:
+ if (buf != NULL)
+ LIBCFS_FREE(buf, len);
+ return rc;
}
-static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, void *arg)
+static int
+proc_cpt_table(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
{
- char *buf;
- struct libcfs_ioctl_data *data;
- int err;
- ENTRY;
-
- LIBCFS_ALLOC_GFP(buf, 1024, CFS_ALLOC_STD);
- if (buf == NULL)
- RETURN(-ENOMEM);
-
- /* 'cmd' and permissions get checked in our arch-specific caller */
- if (libcfs_ioctl_getdata(buf, buf + 800, (void *)arg)) {
- CERROR("PORTALS ioctl: data error\n");
- GOTO(out, err = -EINVAL);
- }
- data = (struct libcfs_ioctl_data *)buf;
+ return lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_cpt_table);
+}
- err = libcfs_ioctl_int(pfile, cmd, arg, data);
+static int __proc_cpt_distance(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
+{
+ char *buf = NULL;
+ int len = 4096;
+ int rc = 0;
+
+ if (write)
+ return -EPERM;
+
+ LASSERT(cfs_cpt_table != NULL);
+
+ while (1) {
+ LIBCFS_ALLOC(buf, len);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ rc = cfs_cpt_distance_print(cfs_cpt_table, buf, len);
+ if (rc >= 0)
+ break;
+
+ if (rc == -EFBIG) {
+ LIBCFS_FREE(buf, len);
+ len <<= 1;
+ continue;
+ }
+ goto out;
+ }
+
+ if (pos >= rc) {
+ rc = 0;
+ goto out;
+ }
+
+ rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
+ out:
+ if (buf != NULL)
+ LIBCFS_FREE(buf, len);
+ return rc;
+}
-out:
- LIBCFS_FREE(buf, 1024);
- RETURN(err);
+static int
+proc_cpt_distance(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ return lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_cpt_distance);
}
+static struct ctl_table lnet_table[] = {
+ /*
+ * NB No .strategy entries have been provided since sysctl(8) prefers
+ * to go via /proc for portability.
+ */
+ {
+ INIT_CTL_NAME
+ .procname = "debug",
+ .data = &libcfs_debug,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dobitmasks,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "subsystem_debug",
+ .data = &libcfs_subsystem_debug,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dobitmasks,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "printk",
+ .data = &libcfs_printk,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dobitmasks,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "console_ratelimit",
+ .data = &libcfs_console_ratelimit,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "console_max_delay_centisecs",
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_console_max_delay_cs
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "console_min_delay_centisecs",
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_console_min_delay_cs
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "console_backoff",
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_console_backoff
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "debug_path",
+ .data = libcfs_debug_file_path_arr,
+ .maxlen = sizeof(libcfs_debug_file_path_arr),
+ .mode = 0644,
+ .proc_handler = &proc_dostring,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "cpu_partition_table",
+ .maxlen = 128,
+ .mode = 0444,
+ .proc_handler = &proc_cpt_table,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "cpu_partition_distance",
+ .maxlen = 128,
+ .mode = 0444,
+ .proc_handler = &proc_cpt_distance,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "debug_log_upcall",
+ .data = lnet_debug_log_upcall,
+ .maxlen = sizeof(lnet_debug_log_upcall),
+ .mode = 0644,
+ .proc_handler = &proc_dostring,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "lnet_memused",
+ .data = (int *)&libcfs_kmemory.counter,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = &proc_dointvec,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "catastrophe",
+ .data = &libcfs_catastrophe,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = &proc_dointvec,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "panic_on_lbug",
+ .data = &libcfs_panic_on_lbug,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "dump_kernel",
+ .maxlen = 256,
+ .mode = 0200,
+ .proc_handler = &proc_dump_kernel,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "daemon_file",
+ .mode = 0644,
+ .maxlen = 256,
+ .proc_handler = &proc_daemon_file,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "debug_mb",
+ .mode = 0644,
+ .proc_handler = &proc_debug_mb,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "watchdog_ratelimit",
+ .data = &libcfs_watchdog_ratelimit,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .extra1 = &min_watchdog_ratelimit,
+ .extra2 = &max_watchdog_ratelimit,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "force_lbug",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0200,
+ .proc_handler = &libcfs_force_lbug
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "fail_loc",
+ .data = &cfs_fail_loc,
+ .maxlen = sizeof(cfs_fail_loc),
+ .mode = 0644,
+ .proc_handler = &proc_fail_loc
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "fail_val",
+ .data = &cfs_fail_val,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "fail_err",
+ .data = &cfs_fail_err,
+ .maxlen = sizeof(cfs_fail_err),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+ {
+ }
+};
-struct cfs_psdev_ops libcfs_psdev_ops = {
- libcfs_psdev_open,
- libcfs_psdev_release,
- NULL,
- NULL,
- libcfs_ioctl
+#ifdef CONFIG_SYSCTL
+static struct ctl_table top_table[] = {
+ {
+ INIT_CTL_NAME
+ .procname = "lnet",
+ .mode = 0555,
+ .data = NULL,
+ .maxlen = 0,
+ .child = lnet_table,
+ },
+ { 0 }
};
+#endif
-extern int insert_proc(void);
-extern void remove_proc(void);
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Portals v3.1");
-MODULE_LICENSE("GPL");
+static int insert_proc(void)
+{
+#ifdef CONFIG_SYSCTL
+ if (lnet_table_header == NULL)
+ lnet_table_header = register_sysctl_table(top_table);
+#endif
+ return 0;
+}
-extern cfs_psdev_t libcfs_dev;
-extern cfs_rw_semaphore_t cfs_tracefile_sem;
-extern cfs_semaphore_t cfs_trace_thread_sem;
+static void remove_proc(void)
+{
+#ifdef CONFIG_SYSCTL
+ if (lnet_table_header != NULL)
+ unregister_sysctl_table(lnet_table_header);
-extern void libcfs_init_nidstrings(void);
-extern int libcfs_arch_init(void);
-extern void libcfs_arch_cleanup(void);
+ lnet_table_header = NULL;
+#endif
+}
-static int init_libcfs_module(void)
+static int __init libcfs_init(void)
{
- int rc;
-
- libcfs_arch_init();
- libcfs_init_nidstrings();
- cfs_init_rwsem(&cfs_tracefile_sem);
- cfs_init_mutex(&cfs_trace_thread_sem);
- cfs_init_rwsem(&ioctl_list_sem);
- CFS_INIT_LIST_HEAD(&ioctl_list);
-
- rc = libcfs_debug_init(5 * 1024 * 1024);
- if (rc < 0) {
- printk(CFS_KERN_ERR "LustreError: libcfs_debug_init: %d\n", rc);
- return (rc);
- }
-
-#if LWT_SUPPORT
- rc = lwt_init();
- if (rc != 0) {
- CERROR("lwt_init: error %d\n", rc);
- goto cleanup_debug;
- }
-#endif
- rc = cfs_psdev_register(&libcfs_dev);
- if (rc) {
- CERROR("misc_register: error %d\n", rc);
- goto cleanup_lwt;
- }
-
- rc = insert_proc();
- if (rc) {
- CERROR("insert_proc: error %d\n", rc);
- goto cleanup_deregister;
- }
-
- CDEBUG (D_OTHER, "portals setup OK\n");
- return (0);
-
- cleanup_deregister:
- cfs_psdev_deregister(&libcfs_dev);
- cleanup_lwt:
-#if LWT_SUPPORT
- lwt_fini();
- cleanup_debug:
-#endif
- libcfs_debug_cleanup();
- return rc;
+ int rc;
+
+ rc = libcfs_debug_init(5 * 1024 * 1024);
+ if (rc < 0) {
+ printk(KERN_ERR "LustreError: libcfs_debug_init: %d\n", rc);
+ return (rc);
+ }
+
+ rc = cfs_cpu_init();
+ if (rc != 0)
+ goto cleanup_debug;
+
+ rc = misc_register(&libcfs_dev);
+ if (rc) {
+ CERROR("misc_register: error %d\n", rc);
+ goto cleanup_cpu;
+ }
+
+ rc = cfs_wi_startup();
+ if (rc) {
+ CERROR("initialize workitem: error %d\n", rc);
+ goto cleanup_deregister;
+ }
+
+ /* max to 4 threads, should be enough for rehash */
+ rc = min(cfs_cpt_weight(cfs_cpt_table, CFS_CPT_ANY), 4);
+ rc = cfs_wi_sched_create("cfs_rh", cfs_cpt_table, CFS_CPT_ANY,
+ rc, &cfs_sched_rehash);
+ if (rc != 0) {
+ CERROR("Startup workitem scheduler: error: %d\n", rc);
+ goto cleanup_deregister;
+ }
+
+ rc = cfs_crypto_register();
+ if (rc) {
+ CERROR("cfs_crypto_regster: error %d\n", rc);
+ goto cleanup_wi;
+ }
+
+
+ rc = insert_proc();
+ if (rc) {
+ CERROR("insert_proc: error %d\n", rc);
+ goto cleanup_crypto;
+ }
+
+ CDEBUG (D_OTHER, "portals setup OK\n");
+ return 0;
+cleanup_crypto:
+ cfs_crypto_unregister();
+cleanup_wi:
+ cfs_wi_shutdown();
+cleanup_deregister:
+ misc_deregister(&libcfs_dev);
+cleanup_cpu:
+ cfs_cpu_fini();
+cleanup_debug:
+ libcfs_debug_cleanup();
+ return rc;
}
-static void exit_libcfs_module(void)
+static void __exit libcfs_exit(void)
{
- int rc;
+ int rc;
- remove_proc();
+ remove_proc();
- CDEBUG(D_MALLOC, "before Portals cleanup: kmem %d\n",
- cfs_atomic_read(&libcfs_kmemory));
+ CDEBUG(D_MALLOC, "before Portals cleanup: kmem %d\n",
+ atomic_read(&libcfs_kmemory));
- rc = cfs_psdev_deregister(&libcfs_dev);
- if (rc)
- CERROR("misc_deregister error %d\n", rc);
+ if (cfs_sched_rehash != NULL) {
+ cfs_wi_sched_destroy(cfs_sched_rehash);
+ cfs_sched_rehash = NULL;
+ }
-#if LWT_SUPPORT
- lwt_fini();
-#endif
+ cfs_crypto_unregister();
+ cfs_wi_shutdown();
- if (cfs_atomic_read(&libcfs_kmemory) != 0)
- CERROR("Portals memory leaked: %d bytes\n",
- cfs_atomic_read(&libcfs_kmemory));
+ misc_deregister(&libcfs_dev);
- rc = libcfs_debug_cleanup();
- if (rc)
- printk(CFS_KERN_ERR "LustreError: libcfs_debug_cleanup: %d\n",
- rc);
+ cfs_cpu_fini();
- cfs_fini_rwsem(&ioctl_list_sem);
- cfs_fini_rwsem(&cfs_tracefile_sem);
+ if (atomic_read(&libcfs_kmemory) != 0)
+ CERROR("Portals memory leaked: %d bytes\n",
+ atomic_read(&libcfs_kmemory));
- libcfs_arch_cleanup();
+ rc = libcfs_debug_cleanup();
+ if (rc)
+ printk(KERN_ERR "LustreError: libcfs_debug_cleanup: %d\n",
+ rc);
}
-cfs_module(libcfs, "1.0.0", init_libcfs_module, exit_libcfs_module);
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre helper library");
+MODULE_VERSION(LIBCFS_VERSION);
+MODULE_LICENSE("GPL");
+
+module_init(libcfs_init);
+module_exit(libcfs_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff