[dpdk-dev] [PATCH v3 09/14] Remove iopl operation for IBM Power architecture

[Chao Zhu <chaozhu@linux.vnet.ibm.com>]

iopl() call is mostly for the i386 architecture. In Power and other
architecture, it doesn't exist. This patch modified rte_eal_iopl_init()
and make it return -1 for Power and other architecture. Thus
rte_config.flags will not contain EAL_FLG_HIGH_IOPL flag for other
architecture.

Signed-off-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>
---
 lib/librte_eal/linuxapp/eal/eal.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index 7a1d087..0bf81be 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -50,7 +50,9 @@
 #include <errno.h>
 #include <sys/mman.h>
 #include <sys/queue.h>
+#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686) 
 #include <sys/io.h>
+#endif
 
 #include <rte_common.h>
 #include <rte_debug.h>
@@ -752,13 +754,19 @@ rte_eal_mcfg_complete(void)
 
 /*
  * Request iopl privilege for all RPL, returns 0 on success
+ * iopl() call is mostly for the i386 architecture. For other architectures,
+ * return -1 to indicate IO priviledge can't be changed in this way. 
  */
 int
 rte_eal_iopl_init(void)
 {
+#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_I686) 
 	if (iopl(3) != 0)
 		return -1;
 	return 0;
+#else
+	return -1;
+#endif
 }
 
 /* Launch threads, called at application init(). */
-- 
1.7.1