mxlnd_modparams.c

非常经典的一个分布式系统

/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
 * vim:expandtab:shiftwidth=8:tabstop=8:
 *
 * Copyright (C) 2004 Cluster File Systems, Inc.
 *   Author: Eric Barton <[e-mail]>
 * Copyright (C) 2006 Myricom, Inc.
 *   Author: Scott Atchley <atchley at myri.com>
 *
 *   This file is part of Lustre, http://www.lustre.org.
 *
 *   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.
 *
 *   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
 *   along with Lustre; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "mxlnd.h"

static int n_waitd = MXLND_N_SCHED;
CFS_MODULE_PARM(n_waitd, "i", int, 0444,
                "# of completion daemons");

static int max_peers = MXLND_MAX_PEERS;
CFS_MODULE_PARM(max_peers, "i", int, 0444,
		"maximum number of peers that may connect");

static int cksum = MXLND_CKSUM;
CFS_MODULE_PARM(cksum, "i", int, 0644,
                "set non-zero to enable message (not data payload) checksums");

static int ntx = MXLND_NTX;
CFS_MODULE_PARM(ntx, "i", int, 0444,
		"# of total tx message descriptors");

static int credits = MXLND_MSG_QUEUE_DEPTH;
CFS_MODULE_PARM(credits, "i", int, 0444,
		"# concurrent sends");

static int board = MXLND_MX_BOARD;
CFS_MODULE_PARM(board, "i", int, 0444,
		"index value of the Myrinet board (NIC)");

static int ep_id = MXLND_MX_EP_ID;
CFS_MODULE_PARM(ep_id, "i", int, 0444,
		"MX endpoint ID");

static int polling = MXLND_POLLING;
CFS_MODULE_PARM(polling, "i", int, 0444,
		"Use 0 to block (wait). A value > 0 will poll that many times before blocking");

static char *hosts = NULL;
CFS_MODULE_PARM(hosts, "s", charp, 0444,
		"IP-to-hostname resolution file");

kmx_tunables_t kmxlnd_tunables = {
        .kmx_n_waitd            = &n_waitd,
        .kmx_max_peers          = &max_peers,
        .kmx_cksum              = &cksum,
        .kmx_ntx                = &ntx,
        .kmx_credits            = &credits,
        .kmx_board              = &board,
        .kmx_ep_id              = &ep_id,
        .kmx_polling            = &polling,
        .kmx_hosts              = &hosts
};