1 files changed, 0 insertions, 370 deletions
diff --git a/src/dpdk_lib18/librte_eal/linuxapp/eal/eal_xen_memory.c b/src/dpdk_lib18/librte_eal/linuxapp/eal/eal_xen_memory.c
deleted file mode 100755
index ee5cc2da..00000000
--- a/src/dpdk_lib18/librte_eal/linuxapp/eal/eal_xen_memory.c
+++ /dev/null
@@ -1,370 +0,0 @@
-/*-
- *   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
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * 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
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   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 <errno.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <inttypes.h>
-#include <string.h>
-#include <stdarg.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/queue.h>
-#include <sys/file.h>
-#include <unistd.h>
-#include <limits.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-
-#include <rte_log.h>
-#include <rte_memory.h>
-#include <rte_memzone.h>
-#include <rte_launch.h>
-#include <rte_tailq.h>
-#include <rte_eal.h>
-#include <rte_eal_memconfig.h>
-#include <rte_per_lcore.h>
-#include <rte_lcore.h>
-#include <rte_common.h>
-#include <rte_string_fns.h>
-
-#include "eal_private.h"
-#include "eal_internal_cfg.h"
-#include "eal_filesystem.h"
-#include <exec-env/rte_dom0_common.h>
-
-#define PAGE_SIZE RTE_PGSIZE_4K
-#define DEFAUL_DOM0_NAME "dom0-mem"
-
-static int xen_fd = -1;
-static const char sys_dir_path[] = "/sys/kernel/mm/dom0-mm/memsize-mB";
-
-/*
- * Try to mmap *size bytes in /dev/zero. If it is successful, return the
- * pointer to the mmap'd area and keep *size unmodified. Else, retry
- * with a smaller zone: decrease *size by mem_size until it reaches
- * 0. In this case, return NULL. Note: this function returns an address
- * which is a multiple of mem_size size.
- */
-static void *
-xen_get_virtual_area(size_t *size, size_t mem_size)
-{
-	void *addr;
-	int fd;
-	long aligned_addr;
-
-	RTE_LOG(INFO, EAL, "Ask a virtual area of 0x%zu bytes\n", *size);
-
-	fd = open("/dev/zero", O_RDONLY);
-	if (fd < 0){
-		RTE_LOG(ERR, EAL, "Cannot open /dev/zero\n");
-		return NULL;
-	}
-	do {
-		addr = mmap(NULL, (*size) + mem_size, PROT_READ,
-			MAP_PRIVATE, fd, 0);
-		if (addr == MAP_FAILED)
-			*size -= mem_size;
-	} while (addr == MAP_FAILED && *size > 0);
-
-	if (addr == MAP_FAILED) {
-		close(fd);
-		RTE_LOG(INFO, EAL, "Cannot get a virtual area\n");
-		return NULL;
-	}
-
-	munmap(addr, (*size) + mem_size);
-	close(fd);
-
-	/* align addr to a mem_size boundary */
-	aligned_addr = (uintptr_t)addr;
-	aligned_addr = RTE_ALIGN_CEIL(aligned_addr, mem_size);
-        addr = (void *)(aligned_addr);
-
-	RTE_LOG(INFO, EAL, "Virtual area found at %p (size = 0x%zx)\n",
-		addr, *size);
-
-	return addr;
-}
-
-/**
- * Get memory size configuration from /sys/devices/virtual/misc/dom0_mm
- * /memsize-mB/memsize file, and the size unit is mB.
- */
-static int
-get_xen_memory_size(void)
-{
-	char path[PATH_MAX];
-	unsigned long mem_size = 0;
-	static const char *file_name;
-
-	file_name = "memsize";
-	snprintf(path, sizeof(path), "%s/%s",
-			sys_dir_path, file_name);
-
-	if (eal_parse_sysfs_value(path, &mem_size) < 0)
-		return -1;
-
-	if (mem_size == 0)
-		rte_exit(EXIT_FAILURE,"XEN-DOM0:the %s/%s was not"
-			" configured.\n",sys_dir_path, file_name);
-	if (mem_size % 2)
-		rte_exit(EXIT_FAILURE,"XEN-DOM0:the %s/%s must be"
-			" even number.\n",sys_dir_path, file_name);
-
-	if (mem_size > DOM0_CONFIG_MEMSIZE)
-		rte_exit(EXIT_FAILURE,"XEN-DOM0:the %s/%s should not be larger"
-			" than %d mB\n",sys_dir_path, file_name, DOM0_CONFIG_MEMSIZE);
-
-	return mem_size;
-}
-
-/**
- * Based on physical address to caculate MFN in Xen Dom0.
- */
-phys_addr_t
-rte_mem_phy2mch(uint32_t memseg_id, const phys_addr_t phy_addr)
-{
-	int mfn_id;
-	uint64_t mfn, mfn_offset;
-	struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
-	struct rte_memseg *memseg = mcfg->memseg;
-
-	mfn_id = (phy_addr - memseg[memseg_id].phys_addr) / RTE_PGSIZE_2M;
-
-	/*the MFN is contiguous in 2M */
-	mfn_offset = (phy_addr - memseg[memseg_id].phys_addr) %
-					RTE_PGSIZE_2M / PAGE_SIZE;
-	mfn = mfn_offset + memseg[memseg_id].mfn[mfn_id];
-
-	/** return mechine address */
-	return (mfn * PAGE_SIZE + phy_addr % PAGE_SIZE);
-}
-
-int
-rte_xen_dom0_memory_init(void)
-{
-	void *vir_addr, *vma_addr = NULL;
-	int err, ret = 0;
-	uint32_t i, requested, mem_size, memseg_idx, num_memseg = 0;
-	size_t vma_len = 0;
-	struct memory_info meminfo;
-	struct memseg_info seginfo[RTE_MAX_MEMSEG];
-	int flags, page_size = getpagesize();
-	struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
-	struct rte_memseg *memseg = mcfg->memseg;
-	uint64_t total_mem = internal_config.memory;
-
-	memset(seginfo, 0, sizeof(seginfo));
-	memset(&meminfo, 0, sizeof(struct memory_info));
-
-	mem_size = get_xen_memory_size();
-	requested = (unsigned) (total_mem / 0x100000);
-	if (requested > mem_size)
-		/* if we didn't satisfy total memory requirements */
-		rte_exit(EXIT_FAILURE,"Not enough memory available! Requested: %uMB,"
-				" available: %uMB\n", requested, mem_size);
-	else if (total_mem != 0)
-		mem_size = requested;
-
-	/* Check FD and open once */
-	if (xen_fd < 0) {
-		xen_fd = open(DOM0_MM_DEV, O_RDWR);
-		if (xen_fd < 0) {
-			RTE_LOG(ERR, EAL, "Can not open %s\n",DOM0_MM_DEV);
-			return -1;
-		}
-	}
-
-	meminfo.size = mem_size;
-
-	/* construct memory mangement name for Dom0 */
-	snprintf(meminfo.name, DOM0_NAME_MAX, "%s-%s",
-		internal_config.hugefile_prefix, DEFAUL_DOM0_NAME);
-
-	/* Notify kernel driver to allocate memory */
-	ret = ioctl(xen_fd, RTE_DOM0_IOCTL_PREPARE_MEMSEG, &meminfo);
-	if (ret < 0) {
-		RTE_LOG(ERR, EAL, "XEN DOM0:failed to get memory\n");
-		err = -EIO;
-		goto fail;
-	}
-
-	/* Get number of memory segment from driver */
-	ret = ioctl(xen_fd, RTE_DOM0_IOCTL_GET_NUM_MEMSEG, &num_memseg);
-	if (ret < 0) {
-		RTE_LOG(ERR, EAL, "XEN DOM0:failed to get memseg count.\n");
-		err = -EIO;
-		goto fail;
-	}
-
-	if(num_memseg > RTE_MAX_MEMSEG){
-		RTE_LOG(ERR, EAL, "XEN DOM0: the memseg count %d is greater"
-			" than max memseg %d.\n",num_memseg, RTE_MAX_MEMSEG);
-		err = -EIO;
-		goto fail;
-	}
-
-	/* get all memory segements information */
-	ret = ioctl(xen_fd, RTE_DOM0_IOCTL_GET_MEMSEG_INFO, seginfo);
-	if (ret < 0) {
-		RTE_LOG(ERR, EAL, "XEN DOM0:failed to get memseg info.\n");
-		err = -EIO;
-		goto fail;
-	}
-
-	/* map all memory segments to contiguous user space */
-	for (memseg_idx = 0; memseg_idx < num_memseg; memseg_idx++)
-	{
-		vma_len = seginfo[memseg_idx].size;
-
-		/**
-		 * get the biggest virtual memory area up to vma_len. If it fails,
-		 * vma_addr is NULL, so let the kernel provide the address.
-		 */
-		vma_addr = xen_get_virtual_area(&vma_len, RTE_PGSIZE_2M);
-		if (vma_addr == NULL) {
-			flags = MAP_SHARED;
-			vma_len = RTE_PGSIZE_2M;
-		} else
-			flags = MAP_SHARED | MAP_FIXED;
-
-		seginfo[memseg_idx].size = vma_len;
-		vir_addr = mmap(vma_addr, seginfo[memseg_idx].size,
-			PROT_READ|PROT_WRITE, flags, xen_fd,
-			memseg_idx * page_size);
-		if (vir_addr == MAP_FAILED) {
-			RTE_LOG(ERR, EAL, "XEN DOM0:Could not mmap %s\n",
-				DOM0_MM_DEV);
-			err = -EIO;
-			goto fail;
-		}
-
-		memseg[memseg_idx].addr = vir_addr;
-		memseg[memseg_idx].phys_addr = page_size *
-			seginfo[memseg_idx].pfn ;
-		memseg[memseg_idx].len = seginfo[memseg_idx].size;
-		for ( i = 0; i < seginfo[memseg_idx].size / RTE_PGSIZE_2M; i++)
-			memseg[memseg_idx].mfn[i] = seginfo[memseg_idx].mfn[i];
-
-		/* MFNs are continuous in 2M, so assume that page size is 2M */
-		memseg[memseg_idx].hugepage_sz = RTE_PGSIZE_2M;
-
-		memseg[memseg_idx].nchannel = mcfg->nchannel;
-		memseg[memseg_idx].nrank = mcfg->nrank;
-
-		/* NUMA is not suppoted in Xen Dom0, so only set socket 0*/
-		memseg[memseg_idx].socket_id = 0;
-	}
-
-	return 0;
-fail:
-	if (xen_fd > 0) {
-		close(xen_fd);
-		xen_fd = -1;
-	}
-	return err;
-}
-
-/*
- * This creates the memory mappings in the secondary process to match that of
- * the server process. It goes through each memory segment in the DPDK runtime
- * configuration, mapping them in order to form a contiguous block in the
- * virtual memory space
- */
-int
-rte_xen_dom0_memory_attach(void)
-{
-	const struct rte_mem_config *mcfg;
-	unsigned s = 0; /* s used to track the segment number */
-	int xen_fd = -1;
-	int ret = -1;
-	void *vir_addr;
-	char name[DOM0_NAME_MAX] = {0};
-	int page_size = getpagesize();
-
-	mcfg = rte_eal_get_configuration()->mem_config;
-
-	/* Check FD and open once */
-	if (xen_fd < 0) {
-		xen_fd = open(DOM0_MM_DEV, O_RDWR);
-		if (xen_fd < 0) {
-			RTE_LOG(ERR, EAL, "Can not open %s\n",DOM0_MM_DEV);
-			goto error;
-		}
-	}
-
-	/* construct memory mangement name for Dom0 */
-	snprintf(name, DOM0_NAME_MAX, "%s-%s",
-		internal_config.hugefile_prefix, DEFAUL_DOM0_NAME);
-	/* attach to memory segments of primary process */
-	ret = ioctl(xen_fd, RTE_DOM0_IOCTL_ATTACH_TO_MEMSEG, name);
-	if (ret) {
-		RTE_LOG(ERR, EAL,"attach memory segments fail.\n");
-		goto error;
-	}
-
-	/* map all segments into memory to make sure we get the addrs */
-	for (s = 0; s < RTE_MAX_MEMSEG; ++s) {
-
-		/*
-		 * the first memory segment with len==0 is the one that
-		 * follows the last valid segment.
-		 */
-		if (mcfg->memseg[s].len == 0)
-			break;
-
-		vir_addr = mmap(mcfg->memseg[s].addr, mcfg->memseg[s].len,
-				PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, xen_fd,
-				s * page_size);
-		if (vir_addr == MAP_FAILED) {
-			RTE_LOG(ERR, EAL, "Could not mmap %llu bytes "
-				"in %s to requested address [%p]\n",
-				(unsigned long long)mcfg->memseg[s].len, DOM0_MM_DEV,
-				mcfg->memseg[s].addr);
-			goto error;
-		}
-	}
-	return 0;
-
-error:
-	if (xen_fd >= 0) {
-		close(xen_fd);
-		xen_fd = -1;
-	}
-	return -1;
-}