dpdk: enable AVX-512 on ICL

[vpp.git] / src / plugins / dpdk / device / init.c

diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index 19d664a..2874167 100644 (file)
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -30,6 +30,7 @@
 #include <vlib/vmbus/vmbus.h>
 
 #include <rte_ring.h>
+#include <rte_vect.h>
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -1678,6 +1679,10 @@ dpdk_config (vlib_main_t * vm, unformat_input_t * input)
   ret = rte_eal_init (vec_len (conf->eal_init_args),
                      (char **) conf->eal_init_args);
 
+  /* enable the AVX-512 vPMDs in DPDK */
+  if (clib_cpu_supports_avx512_bitalg ())
+    rte_vect_set_max_simd_bitwidth (RTE_VECT_SIMD_512);
+
   /* lazy umount hugepages */
   umount2 ((char *) huge_dir_path, MNT_DETACH);
   rmdir ((char *) huge_dir_path);