-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * lustre/cmm/cmm_mdc.c
- * Lustre Metadata Client (mdc)
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Copyright (c) 2006 Cluster File Systems, Inc.
- * Author: Mike Pershin <tappro@clusterfs.com>
+ * 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 file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * 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 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.
+ * 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
*
- * 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.
+ * 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.
*
- * 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.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/cmm/mdc_device.c
+ *
+ * Lustre Metadata Client (mdc)
+ *
+ * Author: Mike Pershin <tappro@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include <obd.h>
#include "cmm_internal.h"
#include "mdc_internal.h"
-static struct lu_device_operations mdc_lu_ops;
-
-static inline int lu_device_is_mdc(struct lu_device *ld)
-{
- return ergo(ld != NULL && ld->ld_ops != NULL,
- ld->ld_ops == &mdc_lu_ops);
-}
-
-static struct md_device_operations mdc_md_ops = { 0 };
+static const struct lu_device_operations mdc_lu_ops;
+/**
+ * \addtogroup cmm_mdc
+ * @{
+ */
+/**
+ * The md_device_operation for mdc. It is empty.
+ */
+static const struct md_device_operations mdc_md_ops = { 0 };
+/**
+ * Upcall handler in mdc. Analog of obd_device::o_notify().
+ */
static int mdc_obd_update(struct obd_device *host,
struct obd_device *watched,
- enum obd_notify_event ev, void *owner)
+ enum obd_notify_event ev, void *owner, void *data)
{
struct mdc_device *mc = owner;
int rc = 0;
CDEBUG(D_INFO, "Update connect_flags: "LPX64"\n",
conn_data->ocd_connect_flags);
}
-
+
RETURN(rc);
}
-/* MDC OBD is set up already and connected to the proper MDS
+/**
+ * Add new mdc device.
+ * Invoked by configuration command LCFG_ADD_MDC.
+ *
+ * MDC OBD is set up already and connected to the proper MDS
* mdc_add_obd() find that obd by uuid and connects to it.
- * Local MDT uuid is used for connection
- * */
+ * Local MDT uuid is used for connection.
+ */
static int mdc_obd_add(const struct lu_env *env,
struct mdc_device *mc, struct lustre_cfg *cfg)
{
const char *uuid_str = lustre_cfg_string(cfg, 1);
const char *index = lustre_cfg_string(cfg, 2);
const char *mdc_uuid_str = lustre_cfg_string(cfg, 4);
- struct lu_site *ls = mdc2lu_dev(mc)->ld_site;
+ struct md_site *ms = lu_site2md(mdc2lu_dev(mc)->ld_site);
char *p;
int rc = 0;
CERROR("target %s not set up\n", mdc->obd_name);
rc = -EINVAL;
} else {
- struct lustre_handle *conn = &desc->cl_conn;
struct obd_connect_data *ocd;
CDEBUG(D_CONFIG, "connect to %s(%s)\n",
ocd->ocd_ibits_known = MDS_INODELOCK_UPDATE;
ocd->ocd_connect_flags = OBD_CONNECT_VERSION |
OBD_CONNECT_ACL |
- OBD_CONNECT_LCL_CLIENT |
+ OBD_CONNECT_RMT_CLIENT |
OBD_CONNECT_MDS_CAPA |
- OBD_CONNECT_OSS_CAPA |
+ OBD_CONNECT_OSS_CAPA |
OBD_CONNECT_IBITS |
+ OBD_CONNECT_BRW_SIZE |
OBD_CONNECT_MDS_MDS |
OBD_CONNECT_FID |
- OBD_CONNECT_AT;
- rc = obd_connect(env, conn, mdc, &mdc->obd_uuid, ocd, NULL);
+ OBD_CONNECT_AT |
+ OBD_CONNECT_FULL20 |
+ OBD_CONNECT_64BITHASH;
+ ocd->ocd_brw_size = PTLRPC_MAX_BRW_SIZE;
+ rc = obd_connect(env, &desc->cl_exp, mdc, &mdc->obd_uuid, ocd, NULL);
OBD_FREE_PTR(ocd);
if (rc) {
CERROR("target %s connect error %d\n",
mdc->obd_name, rc);
} else {
- desc->cl_exp = class_conn2export(conn);
/* set seq controller export for MDC0 if exists */
if (mc->mc_num == 0)
- ls->ls_control_exp =
+ ms->ms_control_exp =
class_export_get(desc->cl_exp);
rc = obd_fid_init(desc->cl_exp);
if (rc)
mdc->obd_upcall.onu_upcall = mdc_obd_update;
}
}
-
+
if (rc) {
obd_disconnect(desc->cl_exp);
desc->cl_exp = NULL;
RETURN(rc);
}
+/**
+ * Delete mdc device.
+ * Called when configuration command LCFG_CLEANUP is issued.
+ *
+ * This disconnects MDC OBD and cleanup it.
+ */
static int mdc_obd_del(const struct lu_env *env, struct mdc_device *mc,
struct lustre_cfg *cfg)
{
mdc_obd->obd_force = mdt_obd->obd_force;
mdc_obd->obd_fail = 0;
}
-
+
rc = obd_fid_fini(desc->cl_exp);
if (rc)
CERROR("Fid fini error %d\n", rc);
RETURN(0);
}
+/**
+ * Process config command. Passed to the mdc from mdt.
+ * Supports two commands only - LCFG_ADD_MDC and LCFG_CLEANUP
+ */
static int mdc_process_config(const struct lu_env *env,
struct lu_device *ld,
struct lustre_cfg *cfg)
RETURN(rc);
}
-static struct lu_device_operations mdc_lu_ops = {
- .ldo_object_alloc = mdc_object_alloc,
+/**
+ * lu_device_operations instance for mdc.
+ */
+static const struct lu_device_operations mdc_lu_ops = {
+ .ldo_object_alloc = mdc_object_alloc,
.ldo_process_config = mdc_process_config
};
+/**
+ * Initialize proper easize and cookie size.
+ */
void cmm_mdc_init_ea_size(const struct lu_env *env, struct mdc_device *mc,
int max_mdsize, int max_cookiesize)
{
struct obd_device *obd = class_exp2obd(mc->mc_desc.cl_exp);
-
+
obd->u.cli.cl_max_mds_easize = max_mdsize;
obd->u.cli.cl_max_mds_cookiesize = max_cookiesize;
}
-static int mdc_device_init(const struct lu_env *env, struct lu_device *ld,
+/** Start mdc device */
+static int mdc_device_init(const struct lu_env *env, struct lu_device *ld,
const char *name, struct lu_device *next)
{
return 0;
}
+/** Stop mdc device. */
static struct lu_device *mdc_device_fini(const struct lu_env *env,
struct lu_device *ld)
{
RETURN (NULL);
}
+/** Allocate new mdc device */
static struct lu_device *mdc_device_alloc(const struct lu_env *env,
struct lu_device_type *ldt,
struct lustre_cfg *cfg)
} else {
md_device_init(&mc->mc_md_dev, ldt);
mc->mc_md_dev.md_ops = &mdc_md_ops;
- ld = mdc2lu_dev(mc);
+ ld = mdc2lu_dev(mc);
ld->ld_ops = &mdc_lu_ops;
- sema_init(&mc->mc_fid_sem, 1);
-
+ cfs_sema_init(&mc->mc_fid_sem, 1);
}
RETURN (ld);
}
+/** Free mdc device */
static struct lu_device *mdc_device_free(const struct lu_env *env,
struct lu_device *ld)
{
struct mdc_device *mc = lu2mdc_dev(ld);
- LASSERTF(atomic_read(&ld->ld_ref) == 0,
- "Refcount = %i\n", atomic_read(&ld->ld_ref));
- LASSERT(list_empty(&mc->mc_linkage));
+ LASSERTF(cfs_atomic_read(&ld->ld_ref) == 0,
+ "Refcount = %d\n", cfs_atomic_read(&ld->ld_ref));
+ LASSERT(cfs_list_empty(&mc->mc_linkage));
md_device_fini(&mc->mc_md_dev);
OBD_FREE_PTR(mc);
return NULL;
}
-/* context key constructor/destructor: mdc_key_init, mdc_key_fini */
+/** context key constructor/destructor: mdc_key_init, mdc_key_fini */
LU_KEY_INIT_FINI(mdc, struct mdc_thread_info);
-/* context key: mdc_thread_key */
+/** context key: mdc_thread_key */
LU_CONTEXT_KEY_DEFINE(mdc, LCT_MD_THREAD|LCT_CL_THREAD);
-/* type constructor/destructor: mdc_type_init, mdc_type_fini */
+/** type constructor/destructor: mdc_type_init, mdc_type_fini */
LU_TYPE_INIT_FINI(mdc, &mdc_thread_key);
static struct lu_device_type_operations mdc_device_type_ops = {
.ldto_init = mdc_type_init,
.ldto_fini = mdc_type_fini,
+ .ldto_start = mdc_type_start,
+ .ldto_stop = mdc_type_stop,
+
.ldto_device_alloc = mdc_device_alloc,
.ldto_device_free = mdc_device_free,
.ldt_ops = &mdc_device_type_ops,
.ldt_ctx_tags = LCT_MD_THREAD|LCT_CL_THREAD
};
-
+/** @} */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff