/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
- *
+ *
* GPL LICENSE SUMMARY
- *
+ *
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *
+ *
* This program 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.
- *
+ *
* 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 for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
- *
+ *
* Contact Information:
* Intel Corporation
- *
+ *
* BSD LICENSE
- *
+ *
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
- *
+ *
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
+ *
*/
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <linux/version.h>
-
+
#include <xen/xen.h>
#include <xen/page.h>
#include <xen/xen-ops.h>
#include <xen/interface/memory.h>
-
+
#include <rte_config.h>
#include <exec-env/rte_dom0_common.h>
-
+
#include "dom0_mm_dev.h"
MODULE_LICENSE("Dual BSD/GPL");
{
int err = 0;
unsigned long mem_size;
-
- if (0 != strict_strtoul(buf, 0, &mem_size))
+
+ if (0 != strict_strtoul(buf, 0, &mem_size))
return -EINVAL;
mutex_lock(&dom0_dev.data_lock);
XEN_ERR("configure memory size fail\n");
err = -EINVAL;
goto fail;
- } else
+ } else
dom0_dev.config_memsize = mem_size;
fail:
};
-static void
+static void
sort_viraddr(struct memblock_info *mb, int cnt)
{
- int i,j;
+ int i,j;
uint64_t tmp_pfn;
uint64_t tmp_viraddr;
/*sort virtual address and pfn */
- for(i = 0; i < cnt; i ++) {
- for(j = cnt - 1; j > i; j--) {
+ for(i = 0; i < cnt; i ++) {
+ for(j = cnt - 1; j > i; j--) {
if(mb[j].pfn < mb[j - 1].pfn) {
tmp_pfn = mb[j - 1].pfn;
mb[j - 1].pfn = mb[j].pfn;
tmp_viraddr = mb[j - 1].vir_addr;
mb[j - 1].vir_addr = mb[j].vir_addr;
mb[j].vir_addr = tmp_viraddr;
- }
+ }
}
}
}
for(i = 0; i< NUM_MEM_CTX; i++) {
if(dom0_dev.mm_data[i] == NULL)
continue;
- if (!strncmp(dom0_dev.mm_data[i]->name, mem_name,
+ if (!strncmp(dom0_dev.mm_data[i]->name, mem_name,
sizeof(char) * DOM0_NAME_MAX)) {
idx = i;
- break;
+ break;
}
}
vstart = rsv_mm_info[i].vir_addr;
if (vstart) {
if (rsv_mm_info[i].exchange_flag)
- xen_destroy_contiguous_region(vstart,
+ xen_destroy_contiguous_region(vstart,
DOM0_CONTIG_NUM_ORDER);
size = DOM0_MEMBLOCK_SIZE;
for (j = i + 1; j < count; j++) {
/* ignore exchange fail memory block */
- if (mm_data->block_info[j].exchange_flag == 0)
+ if (mm_data->block_info[j].exchange_flag == 0)
break;
-
- if (mm_data->block_info[j].pfn !=
+
+ if (mm_data->block_info[j].pfn !=
(mm_data->block_info[j - 1].pfn +
- DOM0_MEMBLOCK_SIZE / PAGE_SIZE))
+ DOM0_MEMBLOCK_SIZE / PAGE_SIZE))
break;
++k;
mm_data->seg_info[idx].mfn[k] = mm_data->block_info[j].mfn;
num_block = j - i;
zone_len = num_block * DOM0_MEMBLOCK_SIZE;
mm_data->seg_info[idx].size = zone_len;
-
+
XEN_PRINT("memseg id=%d, size=0x%llx\n", idx, zone_len);
i = i+ num_block;
idx++;
for (i = 0; i< num_block; i++) {
/*
- * This API is used to exchage MFN for getting a block of
- * contiguous physical addresses, its maximum size is 2M.
+ * This API is used to exchage MFN for getting a block of
+ * contiguous physical addresses, its maximum size is 2M.
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
if (xen_create_contiguous_region(rsv_mm_info[i].vir_addr,
rsv_mm_info[i].mfn =
pfn_to_mfn(rsv_mm_info[i].pfn);
rsv_mm_info[i].used = 0;
- } else {
+ } else {
XEN_ERR("exchange memeory fail\n");
rsv_mm_info[i].exchange_flag = 0;
dom0_dev.fail_times++;
}
}
}
-
+
return 0;
}
++meminfo->size;
mem_size = meminfo->size;
- if (dom0_dev.num_mem_ctx > NUM_MEM_CTX) {
+ if (dom0_dev.num_mem_ctx > NUM_MEM_CTX) {
XEN_ERR("Memory data space is full in Dom0 driver\n");
return -1;
}
idx = dom0_find_memdata(meminfo->name);
- if (idx >= 0) {
- XEN_ERR("Memory data name %s has already exsited in Dom0 driver.\n",
- meminfo->name);
+ if (idx >= 0) {
+ XEN_ERR("Memory data name %s has already exsited in Dom0 driver.\n",
+ meminfo->name);
return -1;
}
if ((dom0_dev.used_memsize + mem_size) > rsv_memsize) {
XEN_ERR("Misc device registration failed\n");
return -EPERM;
}
-
+
mutex_init(&dom0_dev.data_lock);
dom0_kobj = kobject_create_and_add("dom0-mm", mm_kobj);
if (!dom0_kobj) {
XEN_ERR("dom0-mm object creation failed\n");
- misc_deregister(&dom0_dev.miscdev);
+ misc_deregister(&dom0_dev.miscdev);
return -ENOMEM;
}
misc_deregister(&dom0_dev.miscdev);
return -ENOMEM;
}
-
+
XEN_PRINT("####### DPDK Xen Dom0 module loaded #######\n");
return 0;
return ret;
mutex_lock(&dom0_dev.data_lock);
- if (--mm_data->refcnt == 0)
+ if (--mm_data->refcnt == 0)
ret = dom0_memory_release(mm_data);
mutex_unlock(&dom0_dev.data_lock);
return ret;
}
-static int
+static int
dom0_mmap(struct file *file, struct vm_area_struct *vm)
{
int status = 0;
mutex_unlock(&dom0_dev.data_lock);
return -EINVAL;
}
-
+
if (size > mm_data->seg_info[idx].size){
mutex_unlock(&dom0_dev.data_lock);
return -EINVAL;
case _IOC_NR(RTE_DOM0_IOCTL_PREPARE_MEMSEG):
ret = copy_from_user(&meminfo, (void *)ioctl_param,
sizeof(struct memory_info));
- if (ret)
+ if (ret)
return -EFAULT;
if (mm_data != NULL) {
case _IOC_NR(RTE_DOM0_IOCTL_ATTACH_TO_MEMSEG):
ret = copy_from_user(name, (void *)ioctl_param,
sizeof(char) * DOM0_NAME_MAX);
- if (ret)
+ if (ret)
return -EFAULT;
mutex_lock(&dom0_dev.data_lock);
mutex_unlock(&dom0_dev.data_lock);
return -EINVAL;
}
-
+
mm_data = dom0_dev.mm_data[idx];
mm_data->refcnt++;
file->private_data = mm_data;
break;
case _IOC_NR(RTE_DOM0_IOCTL_GET_NUM_MEMSEG):
- ret = copy_to_user((void *)ioctl_param, &mm_data->num_memseg,
+ ret = copy_to_user((void *)ioctl_param, &mm_data->num_memseg,
sizeof(int));
if (ret)
return -EFAULT;
case _IOC_NR(RTE_DOM0_IOCTL_GET_MEMSEG_INFO):
ret = copy_to_user((void *)ioctl_param,
- &mm_data->seg_info[0],
- sizeof(struct memseg_info) *
+ &mm_data->seg_info[0],
+ sizeof(struct memseg_info) *
mm_data->num_memseg);
- if (ret)
+ if (ret)
return -EFAULT;
break;
default:
XEN_PRINT("IOCTL default \n");
break;
}
-
+
return 0;
}
git.droids-corp.org / dpdk.git / blobdiff