-/* -*- 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.
+ *
+ * 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.
+ *
+ * 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).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2017, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
*/
#ifndef _MGC_INTERNAL_H
#define _MGC_INTERNAL_H
#include <libcfs/libcfs.h>
-#include <lustre/lustre_idl.h>
#include <lustre_lib.h>
#include <lustre_dlm.h>
#include <lustre_log.h>
#include <lustre_export.h>
+#ifdef HAVE_SERVER_SUPPORT
+#include <lustre_nodemap.h>
+#endif
+
+int mgc_tunables_init(struct obd_device *obd);
+int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data);
+
+int mgc_process_log(struct obd_device *mgc, struct config_llog_data *cld);
+
+/* this timeout represents how many seconds MGC should wait before
+ * requeue config and recover lock to the MGS. We need to randomize this
+ * in order to not flood the MGS.
+ */
+#define MGC_TIMEOUT_MIN_SECONDS 5
-#ifdef LPROCFS
-void lprocfs_mgc_init_vars(struct lprocfs_static_vars *lvars);
+extern unsigned int mgc_requeue_timeout_min;
+
+static inline bool cld_is_sptlrpc(struct config_llog_data *cld)
+{
+ return cld->cld_type == MGS_CFG_T_SPTLRPC;
+}
+
+static inline bool cld_is_recover(struct config_llog_data *cld)
+{
+ return cld->cld_type == MGS_CFG_T_RECOVER;
+}
+
+static inline bool cld_is_nodemap(struct config_llog_data *cld)
+{
+#ifdef HAVE_SERVER_SUPPORT
+ return cld->cld_type == MGS_CFG_T_NODEMAP;
#else
-static void lprocfs_mgc_init_vars(struct lprocfs_static_vars *lvars)
+ return false;
+#endif
+}
+
+static inline bool cld_is_barrier(struct config_llog_data *cld)
{
- memset(lvars, 0, sizeof(*lvars));
+#ifdef HAVE_SERVER_SUPPORT
+ return cld->cld_type == MGS_CFG_T_BARRIER;
+#else
+ return false;
+#endif
}
-#endif /* LPROCFS */
+
+#ifdef HAVE_SERVER_SUPPORT
+int mgc_set_info_async_server(const struct lu_env *env,
+ struct obd_export *exp,
+ u32 keylen, void *key,
+ u32 vallen, void *val,
+ struct ptlrpc_request_set *set);
+int mgc_process_nodemap_log(struct obd_device *obd,
+ struct config_llog_data *cld);
+int mgc_process_server_cfg_log(struct lu_env *env, struct llog_ctxt **ctxt,
+ struct lustre_sb_info *lsi,
+ struct obd_device *mgc,
+ struct config_llog_data *cld,
+ int local_only);
+int mgc_process_config_server(struct obd_device *obd, size_t len, void *buf);
+int mgc_barrier_glimpse_ast(struct ldlm_lock *lock, void *data);
+#else /* HAVE_SERVER_SUPPORT */
+#define mgc_barrier_glimpse_ast NULL
+#endif /* HAVE_SERVER_SUPPORT */
+
+/* Not sure where this should go... */
+/* This is the timeout value for MGS_CONNECT request plus a ping interval, such
+ * that we can have a chance to try the secondary MGS if any.
+ */
+#define MGC_ENQUEUE_LIMIT(obd) (INITIAL_CONNECT_TIMEOUT + \
+ (obd_at_off(obd) ? 0 : obd_get_at_min(obd)) + \
+ PING_INTERVAL)
+#define MGC_TARGET_REG_LIMIT 10
+#define MGC_TARGET_REG_LIMIT_MAX RECONNECT_DELAY_MAX
+#define MGC_SEND_PARAM_LIMIT 10
+
+enum {
+ CONFIG_READ_NRPAGES_INIT = 1 << (20 - PAGE_SHIFT),
+ CONFIG_READ_NRPAGES = 4
+};
#endif /* _MGC_INTERNAL_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff