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authorRay Kinsella <mdr@ashroe.eu>2021-01-14 16:37:37 +0000
committerDamjan Marion <dmarion@me.com>2021-03-04 10:50:26 +0000
commit1cebf98e1cdc99e215d30dadd5570ba836b1a6d9 (patch)
tree69e201a0324c7cf44284292934c94ab896672ab2 /src/plugins/dpdk
parentf457a3886ae21cc0d4b43d8eaf5f8af86f836bad (diff)
dpdk: enable AVX-512 on ICL
Enable DPDK AVX-512 Vector PMDs on Intel Icelake Type: improvement Signed-off-by: Ray Kinsella <mdr@ashroe.eu> Signed-off-by: Radu Nicolau <radu.nicolau@intel.com> Change-Id: Ie5d5bf54ccaa65c1d053d56a2f2973fe8625193b
Diffstat (limited to 'src/plugins/dpdk')
-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);