-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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.
*
- * Lustre is free 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.
+ * 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).
*
- * 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
- * GNU General Public License for more details.
+ * 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
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#define DEBUG_SUBSYSTEM S_PORTALS
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/smp_lock.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-#include <linux/miscdevice.h>
-
-#include <portals/lib-p30.h>
-#include <portals/p30.h>
-#include <portals/nal.h>
-#include <linux/kp30.h>
-#include <linux/kpr.h>
-#include <linux/portals_compat25.h>
-
-extern void (kping_client)(struct portal_ioctl_data *);
-
-static int kportal_ioctl(struct portal_ioctl_data *data,
- unsigned int cmd, unsigned long arg)
-{
- int err;
- char str[PTL_NALFMT_SIZE];
- ENTRY;
+#define DEBUG_SUBSYSTEM S_LNET
+#include <lnet/lib-lnet.h>
+#include <lnet/lib-dlc.h>
- switch (cmd) {
- case IOC_PORTAL_PING: {
- void (*ping)(struct portal_ioctl_data *);
-
- CDEBUG(D_IOCTL, "doing %d pings to nid "LPX64" (%s)\n",
- data->ioc_count, data->ioc_nid,
- portals_nid2str(data->ioc_nal, data->ioc_nid, str));
- ping = PORTAL_SYMBOL_GET(kping_client);
- if (!ping)
- CERROR("PORTAL_SYMBOL_GET failed\n");
- else {
- ping(data);
- PORTAL_SYMBOL_PUT(kping_client);
- }
- RETURN(0);
- }
+static int config_on_load = 0;
+CFS_MODULE_PARM(config_on_load, "i", int, 0444,
+ "configure network at module load");
- case IOC_PORTAL_GET_NID: {
- ptl_handle_ni_t nih;
- ptl_process_id_t pid;
+static struct mutex lnet_config_mutex;
- CDEBUG (D_IOCTL, "Getting nid for nal [%d]\n", data->ioc_nal);
+int
+lnet_configure(void *arg)
+{
+ /* 'arg' only there so I can be passed to cfs_create_thread() */
+ int rc = 0;
- err = PtlNIInit(data->ioc_nal, LUSTRE_SRV_PTL_PID, NULL,
- NULL, &nih);
- if (!(err == PTL_OK || err == PTL_IFACE_DUP))
- RETURN (-EINVAL);
+ LNET_MUTEX_LOCK(&lnet_config_mutex);
- err = PtlGetId (nih, &pid);
- LASSERT (err == PTL_OK);
+ if (!the_lnet.ln_niinit_self) {
+ rc = LNetNIInit(LUSTRE_SRV_LNET_PID);
+ if (rc >= 0) {
+ the_lnet.ln_niinit_self = 1;
+ rc = 0;
+ }
+ }
- PtlNIFini(nih);
+ LNET_MUTEX_UNLOCK(&lnet_config_mutex);
+ return rc;
+}
- data->ioc_nid = pid.nid;
- if (copy_to_user ((char *)arg, data, sizeof (*data)))
- RETURN (-EFAULT);
- RETURN(0);
- }
+int
+lnet_unconfigure (void)
+{
+ int refcount;
+
+ LNET_MUTEX_LOCK(&lnet_config_mutex);
- case IOC_PORTAL_FAIL_NID: {
- ptl_handle_ni_t nih;
-
- CDEBUG (D_IOCTL, "fail nid: [%d] "LPU64" count %d\n",
- data->ioc_nal, data->ioc_nid, data->ioc_count);
-
- err = PtlNIInit(data->ioc_nal, LUSTRE_SRV_PTL_PID, NULL,
- NULL, &nih);
- if (!(err == PTL_OK || err == PTL_IFACE_DUP))
- return (-EINVAL);
-
- if (err == PTL_OK) {
- /* There's no point in failing an interface that
- * came into existance just for this */
- err = -EINVAL;
- } else {
- err = PtlFailNid (nih, data->ioc_nid, data->ioc_count);
- if (err != PTL_OK)
- err = -EINVAL;
- }
-
- PtlNIFini(nih);
- RETURN (err);
+ if (the_lnet.ln_niinit_self) {
+ the_lnet.ln_niinit_self = 0;
+ LNetNIFini();
}
- default:
- RETURN(-EINVAL);
- }
- /* Not Reached */
+
+ LNET_MUTEX_LOCK(&the_lnet.ln_api_mutex);
+ refcount = the_lnet.ln_refcount;
+ LNET_MUTEX_UNLOCK(&the_lnet.ln_api_mutex);
+
+ LNET_MUTEX_UNLOCK(&lnet_config_mutex);
+ return (refcount == 0) ? 0 : -EBUSY;
}
-DECLARE_IOCTL_HANDLER(kportal_ioctl_handler, kportal_ioctl);
+int
+lnet_dyn_configure(struct libcfs_ioctl_hdr *hdr)
+{
+ struct lnet_ioctl_config_data *conf =
+ (struct lnet_ioctl_config_data *)hdr;
+ int rc;
+
+ LNET_MUTEX_LOCK(&lnet_config_mutex);
+ if (the_lnet.ln_niinit_self)
+ rc = lnet_dyn_add_ni(LUSTRE_SRV_LNET_PID,
+ conf->cfg_config_u.cfg_net.net_intf,
+ conf->cfg_config_u.cfg_net.
+ net_peer_timeout,
+ conf->cfg_config_u.cfg_net.
+ net_peer_tx_credits,
+ conf->cfg_config_u.cfg_net.
+ net_peer_rtr_credits,
+ conf->cfg_config_u.cfg_net.
+ net_max_tx_credits);
+ else
+ rc = -EINVAL;
+ LNET_MUTEX_UNLOCK(&lnet_config_mutex);
+ return rc;
+}
-static int init_kportals_module(void)
+int
+lnet_dyn_unconfigure(struct libcfs_ioctl_hdr *hdr)
{
- int rc;
+ struct lnet_ioctl_config_data *conf =
+ (struct lnet_ioctl_config_data *) hdr;
+ int rc;
+
+ LNET_MUTEX_LOCK(&lnet_config_mutex);
+ if (the_lnet.ln_niinit_self)
+ rc = lnet_dyn_del_ni(conf->cfg_net);
+ else
+ rc = -EINVAL;
+ LNET_MUTEX_UNLOCK(&lnet_config_mutex);
+
+ return rc;
+}
+
+int
+lnet_ioctl(unsigned int cmd, struct libcfs_ioctl_hdr *hdr)
+{
+ int rc;
+
+ switch (cmd) {
+ case IOC_LIBCFS_CONFIGURE: {
+ struct libcfs_ioctl_data *data =
+ (struct libcfs_ioctl_data *)hdr;
+ the_lnet.ln_nis_from_mod_params = data->ioc_flags;
+ return lnet_configure(NULL);
+ }
+
+ case IOC_LIBCFS_UNCONFIGURE:
+ return lnet_unconfigure();
+
+ case IOC_LIBCFS_ADD_NET:
+ return lnet_dyn_configure(hdr);
+
+ case IOC_LIBCFS_DEL_NET:
+ return lnet_dyn_unconfigure(hdr);
+
+ default:
+ /* Passing LNET_PID_ANY only gives me a ref if the net is up
+ * already; I'll need it to ensure the net can't go down while
+ * I'm called into it */
+ rc = LNetNIInit(LNET_PID_ANY);
+ if (rc >= 0) {
+ rc = LNetCtl(cmd, hdr);
+ LNetNIFini();
+ }
+ return rc;
+ }
+}
+
+DECLARE_IOCTL_HANDLER(lnet_ioctl_handler, lnet_ioctl);
+
+int
+init_lnet(void)
+{
+ int rc;
ENTRY;
- rc = PtlInit(NULL);
- if (rc) {
- CERROR("PtlInit: error %d\n", rc);
+ mutex_init(&lnet_config_mutex);
+
+ rc = LNetInit();
+ if (rc != 0) {
+ CERROR("LNetInit: error %d\n", rc);
RETURN(rc);
}
- rc = libcfs_register_ioctl(&kportal_ioctl_handler);
+ rc = libcfs_register_ioctl(&lnet_ioctl_handler);
LASSERT (rc == 0);
- RETURN(rc);
+ if (config_on_load) {
+ /* Have to schedule a separate thread to avoid deadlocking
+ * in modload */
+ (void) kthread_run(lnet_configure, NULL, "lnet_initd");
+ }
+
+ RETURN(0);
}
-static void exit_kportals_module(void)
+void
+fini_lnet(void)
{
int rc;
- rc = libcfs_deregister_ioctl(&kportal_ioctl_handler);
+ rc = libcfs_deregister_ioctl(&lnet_ioctl_handler);
LASSERT (rc == 0);
- PtlFini();
+ LNetFini();
}
-EXPORT_SYMBOL(ptl_register_nal);
-EXPORT_SYMBOL(ptl_unregister_nal);
-
-EXPORT_SYMBOL(ptl_err_str);
-EXPORT_SYMBOL(PtlMEAttach);
-EXPORT_SYMBOL(PtlMEInsert);
-EXPORT_SYMBOL(PtlMEUnlink);
-EXPORT_SYMBOL(PtlEQAlloc);
-EXPORT_SYMBOL(PtlMDAttach);
-EXPORT_SYMBOL(PtlMDUnlink);
-EXPORT_SYMBOL(PtlNIInit);
-EXPORT_SYMBOL(PtlNIFini);
-EXPORT_SYMBOL(PtlInit);
-EXPORT_SYMBOL(PtlFini);
-EXPORT_SYMBOL(PtlSnprintHandle);
-EXPORT_SYMBOL(PtlPut);
-EXPORT_SYMBOL(PtlGet);
-EXPORT_SYMBOL(PtlEQWait);
-EXPORT_SYMBOL(PtlEQFree);
-EXPORT_SYMBOL(PtlEQGet);
-EXPORT_SYMBOL(PtlGetId);
-EXPORT_SYMBOL(PtlMDBind);
-EXPORT_SYMBOL(lib_iov_nob);
-EXPORT_SYMBOL(lib_copy_iov2buf);
-EXPORT_SYMBOL(lib_copy_buf2iov);
-EXPORT_SYMBOL(lib_extract_iov);
-EXPORT_SYMBOL(lib_kiov_nob);
-EXPORT_SYMBOL(lib_copy_kiov2buf);
-EXPORT_SYMBOL(lib_copy_buf2kiov);
-EXPORT_SYMBOL(lib_extract_kiov);
-EXPORT_SYMBOL(lib_finalize);
-EXPORT_SYMBOL(lib_parse);
-EXPORT_SYMBOL(lib_create_reply_msg);
-EXPORT_SYMBOL(lib_init);
-EXPORT_SYMBOL(lib_fini);
-
MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
MODULE_DESCRIPTION("Portals v3.1");
MODULE_LICENSE("GPL");
-module_init(init_kportals_module);
-module_exit(exit_kportals_module);
+
+cfs_module(lnet, "1.0.0", init_lnet, fini_lnet);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff