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/*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA
*
* GPL HEADER END
*/
/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
* Please see comments in libcfs/include/libcfs/libcfs_cpu.h for introduction
*
* Author: liang@whamcloud.com
*/
#define DEBUG_SUBSYSTEM S_LNET
#include "../../include/linux/libcfs/libcfs.h"
/** Global CPU partition table */
struct cfs_cpt_table *cfs_cpt_table __read_mostly = NULL;
EXPORT_SYMBOL(cfs_cpt_table);
#ifndef HAVE_LIBCFS_CPT
#define CFS_CPU_VERSION_MAGIC 0xbabecafe
struct cfs_cpt_table *
cfs_cpt_table_alloc(unsigned int ncpt)
{
struct cfs_cpt_table *cptab;
if (ncpt != 1) {
CERROR("Can't support cpu partition number %d\n", ncpt);
return NULL;
}
LIBCFS_ALLOC(cptab, sizeof(*cptab));
if (cptab != NULL) {
cptab->ctb_version = CFS_CPU_VERSION_MAGIC;
cptab->ctb_nparts = ncpt;
}
return cptab;
}
EXPORT_SYMBOL(cfs_cpt_table_alloc);
void
cfs_cpt_table_free(struct cfs_cpt_table *cptab)
{
LASSERT(cptab->ctb_version == CFS_CPU_VERSION_MAGIC);
LIBCFS_FREE(cptab, sizeof(*cptab));
}
EXPORT_SYMBOL(cfs_cpt_table_free);
#ifdef CONFIG_SMP
int
cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len)
{
int rc = 0;
rc = snprintf(buf, len, "%d\t: %d\n", 0, 0);
len -= rc;
if (len <= 0)
return -EFBIG;
return rc;
}
EXPORT_SYMBOL(cfs_cpt_table_print);
#endif /* CONFIG_SMP */
int
cfs_cpt_number(struct cfs_cpt_table *cptab)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpt_number);
int
cfs_cpt_weight(struct cfs_cpt_table *cptab, int cpt)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpt_weight);
int
cfs_cpt_online(struct cfs_cpt_table *cptab, int cpt)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpt_online);
int
cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpt_set_cpu);
void
cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
{
}
EXPORT_SYMBOL(cfs_cpt_unset_cpu);
int
cfs_cpt_set_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpt_set_cpumask);
void
cfs_cpt_unset_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
{
}
EXPORT_SYMBOL(cfs_cpt_unset_cpumask);
int
cfs_cpt_set_node(struct cfs_cpt_table *cptab, int cpt, int node)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpt_set_node);
void
cfs_cpt_unset_node(struct cfs_cpt_table *cptab, int cpt, int node)
{
}
EXPORT_SYMBOL(cfs_cpt_unset_node);
int
cfs_cpt_set_nodemask(struct cfs_cpt_table *cptab, int cpt, nodemask_t *mask)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpt_set_nodemask);
void
cfs_cpt_unset_nodemask(struct cfs_cpt_table *cptab, int cpt, nodemask_t *mask)
{
}
EXPORT_SYMBOL(cfs_cpt_unset_nodemask);
void
cfs_cpt_clear(struct cfs_cpt_table *cptab, int cpt)
{
}
EXPORT_SYMBOL(cfs_cpt_clear);
int
cfs_cpt_spread_node(struct cfs_cpt_table *cptab, int cpt)
{
return 0;
}
EXPORT_SYMBOL(cfs_cpt_spread_node);
int
cfs_cpu_ht_nsiblings(int cpu)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpu_ht_nsiblings);
int
cfs_cpt_current(struct cfs_cpt_table *cptab, int remap)
{
return 0;
}
EXPORT_SYMBOL(cfs_cpt_current);
int
cfs_cpt_of_cpu(struct cfs_cpt_table *cptab, int cpu)
{
return 0;
}
EXPORT_SYMBOL(cfs_cpt_of_cpu);
int
cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt)
{
return 0;
}
EXPORT_SYMBOL(cfs_cpt_bind);
void
cfs_cpu_fini(void)
{
if (cfs_cpt_table != NULL) {
cfs_cpt_table_free(cfs_cpt_table);
cfs_cpt_table = NULL;
}
}
int
cfs_cpu_init(void)
{
cfs_cpt_table = cfs_cpt_table_alloc(1);
return cfs_cpt_table != NULL ? 0 : -1;
}
#endif /* HAVE_LIBCFS_CPT */
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