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// SPDX-License-Identifier: GPL-2.0
/*
* 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) 2007, 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.
*
* lnet/selftest/conctl.c
*
* Test client & Server
*
* Author: Liang Zhen <liangzhen@clusterfs.com>
*/
#include "selftest.h"
#define LST_PING_TEST_MAGIC 0xbabeface
static int ping_srv_workitems = SFW_TEST_WI_MAX;
module_param(ping_srv_workitems, int, 0644);
MODULE_PARM_DESC(ping_srv_workitems, "# PING server workitems");
struct lst_ping_data {
spinlock_t pnd_lock; /* serialize */
int pnd_counter; /* sequence counter */
};
static struct lst_ping_data lst_ping_data;
static int
ping_client_init(struct sfw_test_instance *tsi)
{
struct sfw_session *sn = tsi->tsi_batch->bat_session;
LASSERT(tsi->tsi_is_client);
LASSERT(sn && !(sn->sn_features & ~LST_FEATS_MASK));
spin_lock_init(&lst_ping_data.pnd_lock);
lst_ping_data.pnd_counter = 0;
return 0;
}
static void
ping_client_fini(struct sfw_test_instance *tsi)
{
struct sfw_session *sn = tsi->tsi_batch->bat_session;
int errors;
LASSERT(sn);
LASSERT(tsi->tsi_is_client);
errors = atomic_read(&sn->sn_ping_errors);
if (errors)
CWARN("%d pings have failed.\n", errors);
else
CDEBUG(D_NET, "Ping test finished OK.\n");
}
static int
ping_client_prep_rpc(struct sfw_test_unit *tsu, struct lnet_process_id dest,
struct srpc_client_rpc **rpc)
{
struct srpc_ping_reqst *req;
struct sfw_test_instance *tsi = tsu->tsu_instance;
struct sfw_session *sn = tsi->tsi_batch->bat_session;
struct timespec64 ts;
int rc;
LASSERT(sn);
LASSERT(!(sn->sn_features & ~LST_FEATS_MASK));
rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, 0, 0, rpc);
if (rc)
return rc;
req = &(*rpc)->crpc_reqstmsg.msg_body.ping_reqst;
req->pnr_magic = LST_PING_TEST_MAGIC;
spin_lock(&lst_ping_data.pnd_lock);
req->pnr_seq = lst_ping_data.pnd_counter++;
spin_unlock(&lst_ping_data.pnd_lock);
ktime_get_real_ts64(&ts);
req->pnr_time_sec = ts.tv_sec;
req->pnr_time_usec = ts.tv_nsec / NSEC_PER_USEC;
return rc;
}
static void
ping_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc)
{
struct sfw_test_instance *tsi = tsu->tsu_instance;
struct sfw_session *sn = tsi->tsi_batch->bat_session;
struct srpc_ping_reqst *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst;
struct srpc_ping_reply *reply = &rpc->crpc_replymsg.msg_body.ping_reply;
struct timespec64 ts;
LASSERT(sn);
if (rpc->crpc_status) {
if (!tsi->tsi_stopping) /* rpc could have been aborted */
atomic_inc(&sn->sn_ping_errors);
CERROR("Unable to ping %s (%d): %d\n",
libcfs_id2str(rpc->crpc_dest),
reqst->pnr_seq, rpc->crpc_status);
return;
}
if (rpc->crpc_replymsg.msg_magic != SRPC_MSG_MAGIC) {
__swab32s(&reply->pnr_seq);
__swab32s(&reply->pnr_magic);
__swab32s(&reply->pnr_status);
}
if (reply->pnr_magic != LST_PING_TEST_MAGIC) {
rpc->crpc_status = -EBADMSG;
atomic_inc(&sn->sn_ping_errors);
CERROR("Bad magic %u from %s, %u expected.\n",
reply->pnr_magic, libcfs_id2str(rpc->crpc_dest),
LST_PING_TEST_MAGIC);
return;
}
if (reply->pnr_seq != reqst->pnr_seq) {
rpc->crpc_status = -EBADMSG;
atomic_inc(&sn->sn_ping_errors);
CERROR("Bad seq %u from %s, %u expected.\n",
reply->pnr_seq, libcfs_id2str(rpc->crpc_dest),
reqst->pnr_seq);
return;
}
ktime_get_real_ts64(&ts);
CDEBUG(D_NET, "%d reply in %u usec\n", reply->pnr_seq,
(unsigned int)((ts.tv_sec - reqst->pnr_time_sec) * 1000000 +
(ts.tv_nsec / NSEC_PER_USEC - reqst->pnr_time_usec)));
}
static int
ping_server_handle(struct srpc_server_rpc *rpc)
{
struct srpc_service *sv = rpc->srpc_scd->scd_svc;
struct srpc_msg *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
struct srpc_msg *replymsg = &rpc->srpc_replymsg;
struct srpc_ping_reqst *req = &reqstmsg->msg_body.ping_reqst;
struct srpc_ping_reply *rep = &rpc->srpc_replymsg.msg_body.ping_reply;
LASSERT(sv->sv_id == SRPC_SERVICE_PING);
if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
LASSERT(reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
__swab32s(&req->pnr_seq);
__swab32s(&req->pnr_magic);
__swab64s(&req->pnr_time_sec);
__swab64s(&req->pnr_time_usec);
}
LASSERT(reqstmsg->msg_type == srpc_service2request(sv->sv_id));
if (req->pnr_magic != LST_PING_TEST_MAGIC) {
CERROR("Unexpected magic %08x from %s\n",
req->pnr_magic, libcfs_id2str(rpc->srpc_peer));
return -EINVAL;
}
rep->pnr_seq = req->pnr_seq;
rep->pnr_magic = LST_PING_TEST_MAGIC;
if (reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) {
replymsg->msg_ses_feats = LST_FEATS_MASK;
rep->pnr_status = EPROTO;
return 0;
}
replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
CDEBUG(D_NET, "Get ping %d from %s\n",
req->pnr_seq, libcfs_id2str(rpc->srpc_peer));
return 0;
}
struct sfw_test_client_ops ping_test_client;
void ping_init_test_client(void)
{
ping_test_client.tso_init = ping_client_init;
ping_test_client.tso_fini = ping_client_fini;
ping_test_client.tso_prep_rpc = ping_client_prep_rpc;
ping_test_client.tso_done_rpc = ping_client_done_rpc;
}
struct srpc_service ping_test_service;
void ping_init_test_service(void)
{
ping_test_service.sv_id = SRPC_SERVICE_PING;
ping_test_service.sv_name = "ping_test";
ping_test_service.sv_handler = ping_server_handle;
ping_test_service.sv_wi_total = ping_srv_workitems;
}
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