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-rw-r--r--src/plugins/dpdk/device/init.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index 19d664a5778..2874167665f 100644
--- 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);