+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2002, Lawrence Livermore National Labs (LLNL)
- * Author: Brian Behlendorf <behlendorf1@llnl.gov>
- * Kedar Sovani (kedar@calsoftinc.com)
- * Amey Inamdar (amey@calsoftinc.com)
- *
- * This file is part of Portals, http://www.sf.net/projects/lustre/
- *
- * Portals 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.
- *
- * Portals 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
- * along with Portals; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-/* This is a striped down version of pinger. It follows a single
- * request-response protocol. Doesn't do Bulk data pinging. Also doesn't
- * send multiple packets in a single ioctl.
- */
-
-
-#define DEBUG_SUBSYSTEM S_PINGER
-
-#include <linux/kp30.h>
-#include <portals/p30.h>
-#include <linux/module.h>
-#include <linux/proc_fs.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include "ping.h"
-/* int portal_debug = D_PING_CLI; */
-
-
-#define STDSIZE (sizeof(int) + sizeof(int) + 4) /* The data is 4 bytes
- assumed */
-
-/* This should be enclosed in a structure */
-
-static struct pingcli_data *client = NULL;
-
-static int count = 0;
-
-static void
-pingcli_shutdown(ptl_handle_ni_t nih, int err)
-{
- int rc;
-
- /* Yes, we are intentionally allowing us to fall through each
- * case in to the next. This allows us to pass an error
- * code to just clean up the right stuff.
- */
- switch (err) {
- case 1:
- /* Unlink any memory descriptors we may have used */
- if ((rc = PtlMDUnlink (client->md_out_head_h)))
- PDEBUG ("PtlMDUnlink", rc);
- case 2:
- /* Free the event queue */
- if ((rc = PtlEQFree (client->eq)))
- PDEBUG ("PtlEQFree", rc);
-
- if ((rc = PtlMEUnlink (client->me)))
- PDEBUG ("PtlMEUnlink", rc);
- case 3:
- PtlNIFini (nih);
-
- case 4:
- /* Free our buffers */
- if (client->outbuf != NULL)
- PORTAL_FREE (client->outbuf, STDSIZE);
-
- if (client->inbuf != NULL)
- PORTAL_FREE (client->inbuf, STDSIZE);
-
-
- if (client != NULL)
- PORTAL_FREE (client,
- sizeof(struct pingcli_data));
- }
-
-
- CDEBUG (D_OTHER, "ping client released resources\n");
-} /* pingcli_shutdown() */
-
-static void pingcli_callback(ptl_event_t *ev)
-{
- wake_up_process (client->tsk);
-}
-
-
-static struct pingcli_data *
-pingcli_start(struct portal_ioctl_data *args)
-{
- ptl_handle_ni_t nih = PTL_INVALID_HANDLE;
- unsigned ping_head_magic = PING_HEADER_MAGIC;
- char str[PTL_NALFMT_SIZE];
- int rc;
-
- client->tsk = current;
- client->args = args;
-
- CDEBUG (D_OTHER, "pingcli_setup args: nid "LPX64" (%s), \
- nal %x, size %u, count: %u, timeout: %u\n",
- args->ioc_nid,
- portals_nid2str(args->ioc_nid, args->ioc_nal, str),
- args->ioc_nal, args->ioc_size,
- args->ioc_count, args->ioc_timeout);
-
-
- PORTAL_ALLOC (client->outbuf, STDSIZE) ;
- if (client->outbuf == NULL)
- {
- CERROR ("Unable to allocate out_buf ("LPSZ" bytes)\n", STDSIZE);
- pingcli_shutdown (nih, 4);
- return (NULL);
- }
-
- PORTAL_ALLOC (client->inbuf, STDSIZE);
-
- if (client->inbuf == NULL)
- {
- CERROR ("Unable to allocate out_buf ("LPSZ" bytes)\n", STDSIZE);
- pingcli_shutdown (nih, 4);
- return (NULL);
- }
-
- /* Aquire and initialize the proper nal for portals. */
- rc = PtlNIInit(args->ioc_nal, 0, NULL, NULL, &nih);
- if (rc != PTL_OK && rc != PTL_IFACE_DUP)
- {
- CERROR ("NAL %x not loaded.\n", args->ioc_nal);
- pingcli_shutdown (nih, 4);
- return (NULL);
- }
-
- /* Based on the initialization aquire our unique portal ID. */
- if ((rc = PtlGetId (nih, &client->myid)))
- {
- CERROR ("PtlGetId error %d\n", rc);
- pingcli_shutdown (nih, 2);
- return (NULL);
- }
-
- /* Setup the local match entries */
- client->id_local.nid = PTL_NID_ANY;
- client->id_local.pid = PTL_PID_ANY;
-
- /* Setup the remote match entries */
- client->id_remote.nid = args->ioc_nid;
- client->id_remote.pid = 0;
-
- if ((rc = PtlMEAttach (nih, PTL_PING_CLIENT,
- client->id_local, 0, ~0, PTL_RETAIN,
- PTL_INS_AFTER, &client->me)))
- {
- CERROR ("PtlMEAttach error %d\n", rc);
- pingcli_shutdown (nih, 2);
- return (NULL);
- }
-
- /* Allocate the event queue for this network interface */
- if ((rc = PtlEQAlloc (nih, 64, pingcli_callback, &client->eq)))
- {
- CERROR ("PtlEQAlloc error %d\n", rc);
- pingcli_shutdown (nih, 2);
- return (NULL);
- }
-
-
- client->md_in_head.start = client->inbuf;
- client->md_in_head.length = STDSIZE;
- client->md_in_head.threshold = 1;
- client->md_in_head.options = PTL_MD_EVENT_START_DISABLE | PTL_MD_OP_PUT;
- client->md_in_head.user_ptr = NULL;
- client->md_in_head.eq_handle = client->eq;
- memset (client->inbuf, 0, STDSIZE);
-
- /* Attach the incoming buffer */
- if ((rc = PtlMDAttach (client->me, client->md_in_head,
- PTL_UNLINK, &client->md_in_head_h))) {
- CERROR ("PtlMDAttach error %d\n", rc);
- pingcli_shutdown (nih, 1);
- return (NULL);
- }
-
- /* Setup the outgoing ping header */
- client->md_out_head.start = client->outbuf;
- client->md_out_head.length = STDSIZE;
- client->md_out_head.threshold = 1;
- client->md_out_head.options = PTL_MD_EVENT_START_DISABLE | PTL_MD_OP_PUT;
- client->md_out_head.user_ptr = NULL;
- client->md_out_head.eq_handle = PTL_EQ_NONE;
-
- memcpy (client->outbuf, &ping_head_magic, sizeof(ping_head_magic));
-
- /* Bind the outgoing ping header */
- if ((rc=PtlMDBind (nih, client->md_out_head,
- PTL_UNLINK, &client->md_out_head_h))) {
- CERROR ("PtlMDBind error %d\n", rc);
- pingcli_shutdown (nih, 1);
- return (NULL);
- }
- /* Put the ping packet */
- if((rc = PtlPut (client->md_out_head_h, PTL_NOACK_REQ,
- client->id_remote, PTL_PING_SERVER, 0, 0, 0, 0))) {
- PDEBUG ("PtlPut (header)", rc);
- pingcli_shutdown (nih, 1);
- return NULL;
- }
-
- count = 0;
- set_current_state (TASK_INTERRUPTIBLE);
- rc = schedule_timeout (20 * args->ioc_timeout);
- if (rc == 0) {
- CERROR ("Time out on the server\n");
- pingcli_shutdown (nih, 2);
- return NULL;
- } else {
- CWARN("Received respose from the server \n");
- }
-
- pingcli_shutdown (nih, 2);
-
- /* Success! */
- return NULL;
-} /* pingcli_setup() */
-
-
-
-/* called by the portals_ioctl for ping requests */
-int kping_client(struct portal_ioctl_data *args)
-{
-
- PORTAL_ALLOC (client, sizeof(struct pingcli_data));
- memset (client, 0, sizeof(struct pingcli_data));
- if (client == NULL)
- {
- CERROR ("Unable to allocate client structure\n");
- return (0);
- }
- pingcli_start (args);
-
- return 0;
-} /* kping_client() */
-
-
-static int __init pingcli_init(void)
-{
- PORTAL_SYMBOL_REGISTER(kping_client);
- return 0;
-} /* pingcli_init() */
-
-
-static void /*__exit*/ pingcli_cleanup(void)
-{
- PORTAL_SYMBOL_UNREGISTER (kping_client);
-} /* pingcli_cleanup() */
-
-
-MODULE_AUTHOR("Brian Behlendorf (LLNL)");
-MODULE_DESCRIPTION("A simple kernel space ping client for portals testing");
-MODULE_LICENSE("GPL");
-
-module_init(pingcli_init);
-module_exit(pingcli_cleanup);
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
-EXPORT_SYMBOL (kping_client);
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff