From 5499b1968e1d12b736dd3e30b8fb2b69a300128f Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Mon, 3 Oct 2016 17:44:24 +0200 Subject: vhost-user: avoid branching during prefetch Change-Id: I1f4421289b2f93b64a2470559d834717ef40e181 Signed-off-by: Damjan Marion --- vnet/vnet/devices/virtio/vhost-user.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/vnet/vnet/devices/virtio/vhost-user.c b/vnet/vnet/devices/virtio/vhost-user.c index 8ca8c173f27..9b0db749ee9 100644 --- a/vnet/vnet/devices/virtio/vhost-user.c +++ b/vnet/vnet/devices/virtio/vhost-user.c @@ -1493,8 +1493,7 @@ vhost_user_intfc_tx (vlib_main_t * vm, } buffer_len = desc_table[desc_index].len; - CLIB_PREFETCH (buffer_addr, - clib_min (buffer_len, 2 * CLIB_CACHE_LINE_BYTES), STORE); + CLIB_PREFETCH (buffer_addr, CLIB_CACHE_LINE_BYTES, STORE); virtio_net_hdr_mrg_rxbuf_t *hdr = (virtio_net_hdr_mrg_rxbuf_t *) buffer_addr; @@ -1605,9 +1604,7 @@ vhost_user_intfc_tx (vlib_main_t * vm, goto done; } buffer_len = desc_table[desc_index].len; - CLIB_PREFETCH (buffer_addr, - clib_min (buffer_len, - 2 * CLIB_CACHE_LINE_BYTES), STORE); + CLIB_PREFETCH (buffer_addr, CLIB_CACHE_LINE_BYTES, STORE); } else { -- cgit 1.2.3-korg