[dpdk-dev] [PATCH v2] config: enable packet data prefetch

[Marvin Liu]

Data prefetch instruction can preload data into cpu’s hierarchical
cache before data access. Virtualized data paths like virtio utilized
this feature for acceleration. Since most modern cpus have support
prefetch function, we can enable packet data prefetch as default.

Signed-off-by: Marvin Liu <yong.liu at intel.com>
---
v2: move define from meson.build to rte_config.h
---
 config/rte_config.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config/rte_config.h b/config/rte_config.h
index 0bae630fd9..8b007c4c31 100644
--- a/config/rte_config.h
+++ b/config/rte_config.h
@@ -101,6 +101,7 @@
 #define RTE_LIBRTE_GRAPH_STATS 1
 
 /****** driver defines ********/
+#define RTE_PMD_PACKET_PREFETCH 1
 
 /* QuickAssist device */
 /* Max. number of QuickAssist devices which can be attached */
-- 
2.17.1