X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Flinuxapp%2Feal%2Feal.c;h=b5e755fc8b5fd9f5b76d9b31be81f03d6a9107ef;hb=e9d48c0072d36eb6423b45fba4ec49d0def6c36f;hp=f1d3a55cf4cc82a7310a495fd24a74fa04074278;hpb=e1e4017751f1a7ed4807269559b8a9bedb9cd73a;p=dpdk.git

diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index f1d3a55cf4..b5e755fc8b 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  * 
- *   Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
  *   All rights reserved.
  * 
  *   Redistribution and use in source and binary forms, with or without
@@ -47,6 +47,7 @@
 #include <errno.h>
 #include <sys/mman.h>
 #include <sys/queue.h>
+#include <sys/io.h>
 #include <sys/user.h>
 #include <linux/binfmts.h>
 
@@ -97,6 +98,8 @@
 
 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
 
+#define HIGHEST_RPL 3
+
 #define BITS_PER_HEX 4
 
 #define GET_BLACKLIST_FIELD(in, fd, lim, dlm)                   \
@@ -337,7 +340,7 @@ eal_usage(const char *prgname)
 	       "  --"OPT_HUGE_DIR"   : directory where hugetlbfs is mounted\n"
 	       "  --"OPT_PROC_TYPE"  : type of this process\n"
 	       "  --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
-	       "  --"OPT_USE_DEVICE": use the specified ethernet device(s) only."
+	       "  --"OPT_USE_DEVICE": use the specified ethernet device(s) only. "
 	    		   "Use comma-separate <[domain:]bus:devid.func> values.\n"
 	       "               [NOTE: Cannot be used with -b option]\n"
 	       "  --"OPT_VMWARE_TSC_MAP": use VMware TSC map instead of "
@@ -833,6 +836,15 @@ rte_eal_mcfg_complete(void)
 		rte_config.mem_config->magic = RTE_MAGIC;
 }
 
+/*
+ * Request iopl priviledge for all RPL, returns 0 on success
+ */
+static int
+rte_eal_iopl_init(void)
+{
+	return iopl(HIGHEST_RPL);
+}
+
 /* Launch threads, called at application init(). */
 int
 rte_eal_init(int argc, char **argv)
@@ -879,6 +891,9 @@ rte_eal_init(int argc, char **argv)
 	rte_srand(rte_rdtsc());
 
 	rte_config_init();
+
+	if (rte_eal_iopl_init() == 0)
+		rte_config.flags |= EAL_FLG_HIGH_IOPL;
 	
 	if (rte_eal_cpu_init() < 0)
 		rte_panic("Cannot detect lcores\n");