| /* |
| * 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; |
| 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; |
| |
| 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 */ |