Whamcloud - gitweb
LU-6070 libcfs: provide separate buffers for libcfs_*2str()
[fs/lustre-release.git] / lustre / mgs / lproc_mgs.c
index 2453dc3..2e4adf4 100644 (file)
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
  *
- *  Copyright (C) 2002 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   This file is part of the Lustre file system, http://www.lustre.org
- *   Lustre is a trademark of Cluster File Systems, Inc.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
  *
- *   You may have signed or agreed to another license before downloading
- *   this software.  If so, you are bound by the terms and conditions
- *   of that agreement, and the following does not apply to you.  See the
- *   LICENSE file included with this distribution for more information.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
  *
- *   If you did not agree to a different license, then this copy of Lustre
- *   is open source software; you can redistribute it and/or modify it
- *   under the terms of version 2 of the GNU General Public License as
- *   published by the Free Software Foundation.
+ * 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
  *
- *   In either case, Lustre is distributed in the hope that it will be
- *   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   license text for more details.
+ * 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.
  *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2014, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
  */
 #define DEBUG_SUBSYSTEM S_CLASS
 
 #include <linux/version.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 #include <asm/statfs.h>
-#endif
 #include <obd.h>
 #include <obd_class.h>
 #include <lprocfs_status.h>
+#include <lustre_param.h>
 #include "mgs_internal.h"
 
+#ifdef CONFIG_PROC_FS
 
-#ifdef LPROCFS
-
-static int lprocfs_mgs_rd_mntdev(char *page, char **start, off_t off, int count,
-                                 int *eof, void *data)
+static int mgs_fs_seq_show(struct seq_file *seq, void *v)
 {
-        struct obd_device* obd = (struct obd_device *)data;
+       struct obd_device       *obd = seq->private;
+       struct mgs_device       *mgs;
+       struct list_head         list;
+       struct mgs_direntry     *dirent, *n;
+       struct lu_env            env;
+       int rc, len;
 
-        LASSERT(obd != NULL);
-        LASSERT(obd->u.mgs.mgs_vfsmnt->mnt_devname);
-        *eof = 1;
+       ENTRY;
 
-        return snprintf(page, count, "%s\n",obd->u.mgs.mgs_vfsmnt->mnt_devname);
-}
+       LASSERT(obd != NULL);
+       LASSERT(obd->obd_lu_dev != NULL);
+       mgs = lu2mgs_dev(obd->obd_lu_dev);
 
-static int mgs_fs_seq_show(struct seq_file *seq, void *v)
-{
-        struct obd_device *obd = seq->private;
-        struct mgs_obd *mgs = &obd->u.mgs;
-        struct list_head dentry_list;
-        struct l_linux_dirent *dirent, *n;
-        int rc, len;
-        ENTRY;
-
-        LASSERT(obd != NULL);
-        rc = class_dentry_readdir(obd, mgs->mgs_configs_dir,
-                                  mgs->mgs_vfsmnt, &dentry_list);
-        if (rc) {
-                CERROR("Can't read config dir\n");
-                RETURN(rc);
-        }
-        list_for_each_entry_safe(dirent, n, &dentry_list, lld_list) {
-                list_del(&dirent->lld_list);
-                len = strlen(dirent->lld_name);
-                if ((len > 7) && (strncmp(dirent->lld_name + len - 7, "-client",
-                                          len) == 0)) {
-                        seq_printf(seq, "%.*s\n", len - 7, dirent->lld_name);
-                }
-                OBD_FREE(dirent, sizeof(*dirent));
-        }
+       rc = lu_env_init(&env, LCT_MG_THREAD);
+       if (rc)
+               RETURN(rc);
+
+       rc = class_dentry_readdir(&env, mgs, &list);
+       if (rc)
+               GOTO(out, rc);
+
+       list_for_each_entry_safe(dirent, n, &list, mde_list) {
+               list_del_init(&dirent->mde_list);
+               len = strlen(dirent->mde_name);
+               if (len > 7 &&
+                   strncmp(dirent->mde_name + len - 7, "-client", len) == 0)
+                       seq_printf(seq, "%.*s\n", len - 7, dirent->mde_name);
+               mgs_direntry_free(dirent);
+       }
 
-        RETURN(0);
+out:
+       lu_env_fini(&env);
+       RETURN(0);
 }
 
 LPROC_SEQ_FOPS_RO(mgs_fs);
 
-int lproc_mgs_setup(struct obd_device *obd)
+static void seq_show_srpc_rules(struct seq_file *seq, const char *tgtname,
+                                struct sptlrpc_rule_set *rset)
 {
-        struct mgs_obd *mgs = &obd->u.mgs;
-        int rc;
+        struct sptlrpc_rule    *r;
+        char                    dirbuf[10];
+        char                    flvrbuf[40];
+       char                    net[LNET_NIDSTR_SIZE] = "default";
+        int                     i;
 
-        rc = lprocfs_obd_seq_create(obd, "filesystems", 0444,
-                                    &mgs_fs_fops, obd);
-        mgs->mgs_proc_live = proc_mkdir("live", obd->obd_proc_entry);
+        for (i = 0; i < rset->srs_nrule; i++) {
+                r = &rset->srs_rules[i];
+
+               if (r->sr_netid != LNET_NIDNET(LNET_NID_ANY))
+                       libcfs_net2str_r(r->sr_netid, net, sizeof(net));
+
+                if (r->sr_from == LUSTRE_SP_ANY && r->sr_to == LUSTRE_SP_ANY)
+                        dirbuf[0] = '\0';
+                else
+                        snprintf(dirbuf, sizeof(dirbuf), ".%s2%s",
+                                 sptlrpc_part2name(r->sr_from),
+                                 sptlrpc_part2name(r->sr_to));
 
-        return rc;
+                sptlrpc_flavor2name(&r->sr_flvr, flvrbuf, sizeof(flvrbuf));
+                seq_printf(seq, "%s.srpc.flavor.%s%s=%s\n", tgtname,
+                           net, dirbuf, flvrbuf);
+        }
 }
 
-static int mgs_live_seq_show(struct seq_file *seq, void *v) 
+static int mgsself_srpc_seq_show(struct seq_file *seq, void *v)
 {
-        struct fs_db *fsdb = seq->private;
-        int i;
-        
-        down(&fsdb->fsdb_sem);
-
-        seq_printf(seq, "fsname: %s\n", fsdb->fsdb_name);
-        seq_printf(seq, "flags: %#x     gen: %d\n", 
-                   fsdb->fsdb_flags, fsdb->fsdb_gen);
-        for (i = 0; i < INDEX_MAP_SIZE * 8; i++)
-                 if (test_bit(i, fsdb->fsdb_mdt_index_map)) 
-                         seq_printf(seq, "%s-MDT%04x\n", fsdb->fsdb_name, i);
-        for (i = 0; i < INDEX_MAP_SIZE * 8; i++)
-                 if (test_bit(i, fsdb->fsdb_ost_index_map)) 
-                         seq_printf(seq, "%s-OST%04x\n", fsdb->fsdb_name, i);
-
-        up(&fsdb->fsdb_sem);
+       struct obd_device       *obd = seq->private;
+       struct mgs_device       *mgs = lu2mgs_dev(obd->obd_lu_dev);
+       struct lu_target        *tgt = &mgs->mgs_lut;
+
+       read_lock(&tgt->lut_sptlrpc_lock);
+       seq_show_srpc_rules(seq, MGSSELF_NAME, &tgt->lut_sptlrpc_rset);
+       read_unlock(&tgt->lut_sptlrpc_lock);
+
         return 0;
 }
+LPROC_SEQ_FOPS_RO(mgsself_srpc);
+
+static int mgs_live_seq_show(struct seq_file *seq, void *v)
+{
+       struct fs_db             *fsdb = seq->private;
+       struct mgs_tgt_srpc_conf *srpc_tgt;
+       int i;
+
+       mutex_lock(&fsdb->fsdb_mutex);
+
+       seq_printf(seq, "fsname: %s\n", fsdb->fsdb_name);
+       seq_printf(seq, "flags: %#lx     gen: %d\n",
+                  fsdb->fsdb_flags, fsdb->fsdb_gen);
+       for (i = 0; i < INDEX_MAP_SIZE * 8; i++)
+               if (test_bit(i, fsdb->fsdb_mdt_index_map))
+                        seq_printf(seq, "%s-MDT%04x\n", fsdb->fsdb_name, i);
+       for (i = 0; i < INDEX_MAP_SIZE * 8; i++)
+               if (test_bit(i, fsdb->fsdb_ost_index_map))
+                        seq_printf(seq, "%s-OST%04x\n", fsdb->fsdb_name, i);
+
+       seq_printf(seq, "\nSecure RPC Config Rules:\n");
+#if 0
+       seq_printf(seq, "%s.%s=%s\n", fsdb->fsdb_name,
+                  PARAM_SRPC_UDESC, fsdb->fsdb_srpc_fl_udesc ? "yes" : "no");
+#endif
+       for (srpc_tgt = fsdb->fsdb_srpc_tgt; srpc_tgt;
+            srpc_tgt = srpc_tgt->mtsc_next) {
+               seq_show_srpc_rules(seq, srpc_tgt->mtsc_tgt,
+                                   &srpc_tgt->mtsc_rset);
+       }
+       seq_show_srpc_rules(seq, fsdb->fsdb_name, &fsdb->fsdb_srpc_gen);
+
+       lprocfs_rd_ir_state(seq, fsdb);
+
+       mutex_unlock(&fsdb->fsdb_mutex);
+       return 0;
+}
 
-LPROC_SEQ_FOPS_RO(mgs_live);
+static ssize_t mgs_live_seq_write(struct file *file, const char *buf,
+                                 size_t len, loff_t *off)
+{
+       struct seq_file *seq  = file->private_data;
+       struct fs_db    *fsdb = seq->private;
+       ssize_t rc;
+
+       rc = lprocfs_wr_ir_state(file, buf, len, fsdb);
+       if (rc >= 0)
+               rc = len;
+       return rc;
+}
+LPROC_SEQ_FOPS(mgs_live);
 
-int lproc_mgs_add_live(struct obd_device *obd, struct fs_db *fsdb)
+int lproc_mgs_add_live(struct mgs_device *mgs, struct fs_db *fsdb)
 {
-        struct mgs_obd *mgs = &obd->u.mgs;
-        int rc;
+       int rc;
 
-        if (!mgs->mgs_proc_live) 
-                return 0;
-        rc = lprocfs_seq_create(mgs->mgs_proc_live, fsdb->fsdb_name, 0444, 
-                                &mgs_live_fops, fsdb);
+       if (!mgs->mgs_proc_live)
+               return 0;
+       rc = lprocfs_seq_create(mgs->mgs_proc_live, fsdb->fsdb_name, 0644,
+                               &mgs_live_fops, fsdb);
 
-        return 0;
+       return 0;
 }
 
-int lproc_mgs_del_live(struct obd_device *obd, struct fs_db *fsdb)
+int lproc_mgs_del_live(struct mgs_device *mgs, struct fs_db *fsdb)
 {
-        struct mgs_obd *mgs = &obd->u.mgs;
+       if (!mgs->mgs_proc_live)
+               return 0;
 
-        if (!mgs->mgs_proc_live) 
-                return 0;
-        remove_proc_entry(fsdb->fsdb_name, mgs->mgs_proc_live);
-        return 0;
+       /* didn't create the proc file for MGSSELF_NAME */
+       if (!test_bit(FSDB_MGS_SELF, &fsdb->fsdb_flags))
+               lprocfs_remove_proc_entry(fsdb->fsdb_name, mgs->mgs_proc_live);
+       return 0;
 }
 
-struct lprocfs_vars lprocfs_mgs_obd_vars[] = {
-        { "uuid",            lprocfs_rd_uuid,        0, 0 },
-        { "fstype",          lprocfs_rd_fstype,      0, 0 },
-        { "mntdev",          lprocfs_mgs_rd_mntdev,  0, 0 },
-        { "num_exports",     lprocfs_rd_num_exports, 0, 0 },
-        { 0 }
-};
+LPROC_SEQ_FOPS_RO_TYPE(mgs, uuid);
+LPROC_SEQ_FOPS_RO_TYPE(mgs, num_exports);
+LPROC_SEQ_FOPS_RO_TYPE(mgs, hash);
+LPROC_SEQ_FOPS_WO_TYPE(mgs, evict_client);
+LPROC_SEQ_FOPS_RW_TYPE(mgs, ir_timeout);
 
-struct lprocfs_vars lprocfs_mgs_module_vars[] = {
-        { 0 }
+static struct lprocfs_vars lprocfs_mgs_obd_vars[] = {
+       { .name =       "uuid",
+         .fops =       &mgs_uuid_fops          },
+       { .name =       "num_exports",
+         .fops =       &mgs_num_exports_fops   },
+       { .name =       "hash_stats",
+         .fops =       &mgs_hash_fops          },
+       { .name =       "evict_client",
+         .fops =       &mgs_evict_client_fops  },
+       { .name =       "ir_timeout",
+         .fops =       &mgs_ir_timeout_fops    },
+       { NULL }
 };
 
-LPROCFS_INIT_VARS(mgs, lprocfs_mgs_module_vars, lprocfs_mgs_obd_vars);
+int lproc_mgs_setup(struct mgs_device *mgs, const char *osd_name)
+{
+       struct obd_device *obd = mgs->mgs_obd;
+       struct obd_device *osd_obd = mgs->mgs_bottom->dd_lu_dev.ld_obd;
+       int                osd_len = strlen(osd_name) - strlen("-osd");
+       int                rc;
+
+       obd->obd_vars = lprocfs_mgs_obd_vars;
+       rc = lprocfs_obd_setup(obd);
+       if (rc != 0)
+               GOTO(out, rc);
+
+        rc = lprocfs_obd_seq_create(obd, "filesystems", 0444,
+                                    &mgs_fs_fops, obd);
+       if (rc != 0)
+               GOTO(out, rc);
+
+       rc = lprocfs_obd_seq_create(obd, "srpc_rules", 0400,
+                                   &mgsself_srpc_fops, obd);
+       if (rc != 0)
+               GOTO(out, rc);
+
+       mgs->mgs_proc_live = lprocfs_register("live", obd->obd_proc_entry,
+                                             NULL, NULL);
+        if (IS_ERR(mgs->mgs_proc_live)) {
+                rc = PTR_ERR(mgs->mgs_proc_live);
+                mgs->mgs_proc_live = NULL;
+               GOTO(out, rc);
+        }
+
+       obd->obd_proc_exports_entry = lprocfs_register("exports",
+                                                      obd->obd_proc_entry,
+                                                      NULL, NULL);
+        if (IS_ERR(obd->obd_proc_exports_entry)) {
+                rc = PTR_ERR(obd->obd_proc_exports_entry);
+                obd->obd_proc_exports_entry = NULL;
+               GOTO(out, rc);
+        }
+
+       mgs->mgs_proc_osd = lprocfs_add_symlink("osd",
+                                               obd->obd_proc_entry,
+                                               "../../%s/%.*s",
+                                               osd_obd->obd_type->typ_name,
+                                               osd_len, /* Strip "-osd". */
+                                               osd_name);
+       if (mgs->mgs_proc_osd == NULL)
+               GOTO(out, rc = -ENOMEM);
+
+       mgs->mgs_proc_mntdev = lprocfs_add_symlink("mntdev",
+                                                  obd->obd_proc_entry,
+                                                  "osd/mntdev");
+       if (mgs->mgs_proc_mntdev == NULL)
+               GOTO(out, rc = -ENOMEM);
+
+       mgs->mgs_proc_fstype = lprocfs_add_symlink("fstype",
+                                                  obd->obd_proc_entry,
+                                                  "osd/fstype");
+       if (mgs->mgs_proc_fstype == NULL)
+               GOTO(out, rc = -ENOMEM);
+
+out:
+       if (rc != 0)
+               lproc_mgs_cleanup(mgs);
+
+       return rc;
+}
+
+void lproc_mgs_cleanup(struct mgs_device *mgs)
+{
+       struct obd_device *obd = mgs->mgs_obd;
+
+       if (obd == NULL)
+               return;
+
+       if (mgs->mgs_proc_osd != NULL)
+               lprocfs_remove(&mgs->mgs_proc_osd);
+
+       if (mgs->mgs_proc_fstype != NULL)
+               lprocfs_remove(&mgs->mgs_proc_fstype);
+
+       if (mgs->mgs_proc_mntdev != NULL)
+               lprocfs_remove(&mgs->mgs_proc_mntdev);
+
+       if (mgs->mgs_proc_live != NULL) {
+               /* Should be no live entries */
+               lprocfs_remove(&mgs->mgs_proc_live);
+               mgs->mgs_proc_live = NULL;
+       }
+
+        lprocfs_free_per_client_stats(obd);
+       lprocfs_obd_cleanup(obd);
+        lprocfs_free_obd_stats(obd);
+        lprocfs_free_md_stats(obd);
+}
+
+void mgs_counter_incr(struct obd_export *exp, int opcode)
+{
+        lprocfs_counter_incr(exp->exp_obd->obd_stats, opcode);
+        if (exp->exp_nid_stats && exp->exp_nid_stats->nid_stats != NULL)
+                lprocfs_counter_incr(exp->exp_nid_stats->nid_stats, opcode);
+}
+
+void mgs_stats_counter_init(struct lprocfs_stats *stats)
+{
+        lprocfs_counter_init(stats, LPROC_MGS_CONNECT, 0, "connect", "reqs");
+        lprocfs_counter_init(stats, LPROC_MGS_DISCONNECT, 0, "disconnect",
+                             "reqs");
+        lprocfs_counter_init(stats, LPROC_MGS_EXCEPTION, 0, "exception",
+                             "reqs");
+        lprocfs_counter_init(stats, LPROC_MGS_TARGET_REG, 0, "tgtreg", "reqs");
+        lprocfs_counter_init(stats, LPROC_MGS_TARGET_DEL, 0, "tgtdel", "reqs");
+}
 #endif