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authorDamjan Marion <damarion@cisco.com>2018-05-10 13:40:44 +0200
committerDave Barach <openvpp@barachs.net>2018-05-10 17:16:56 +0000
commit1105600416e0560cb05120a22e0a2e7359a13665 (patch)
treeacf1df08de42344c380473d81886864e662890cf /src/plugins/dpdk/device/cli.c
parent132dc49ee847a3e3b644de8b36499d73e8a8d37e (diff)
vppinfra: use count_trailing_zeros in sparse_vec_index
It is much cheaper to use ctzll than to do shift,subtract and mask in likely case when we are looking for 1st set bit in the uword. Change-Id: I31954081571978878c7098bafad0c85a91755fa2 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/dpdk/device/cli.c')
-rw-r--r--src/plugins/dpdk/device/cli.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/plugins/dpdk/device/cli.c b/src/plugins/dpdk/device/cli.c
index 2eaf17e55a5..08bf0c94b53 100644
--- a/src/plugins/dpdk/device/cli.c
+++ b/src/plugins/dpdk/device/cli.c
@@ -1323,20 +1323,20 @@ set_dpdk_if_hqos_pktfield (vlib_main_t * vm, unformat_input_t * input,
xd->hqos_wt[worker_thread_first + i].hqos_field0_slabpos = offset;
xd->hqos_wt[worker_thread_first + i].hqos_field0_slabmask = mask;
xd->hqos_wt[worker_thread_first + i].hqos_field0_slabshr =
- __builtin_ctzll (mask);
+ count_trailing_zeros (mask);
break;
case 1:
xd->hqos_wt[worker_thread_first + i].hqos_field1_slabpos = offset;
xd->hqos_wt[worker_thread_first + i].hqos_field1_slabmask = mask;
xd->hqos_wt[worker_thread_first + i].hqos_field1_slabshr =
- __builtin_ctzll (mask);
+ count_trailing_zeros (mask);
break;
case 2:
default:
xd->hqos_wt[worker_thread_first + i].hqos_field2_slabpos = offset;
xd->hqos_wt[worker_thread_first + i].hqos_field2_slabmask = mask;
xd->hqos_wt[worker_thread_first + i].hqos_field2_slabshr =
- __builtin_ctzll (mask);
+ count_trailing_zeros (mask);
}
done: