diff options
| author |   Damjan Marion <damarion@cisco.com> | 2016-10-03 17:44:24 +0200 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2016-10-03 16:58:56 +0000 |
| commit | 5499b1968e1d12b736dd3e30b8fb2b69a300128f (patch) | |
| tree | cfbb7acfde238e85475fafd45891c58cb9433baa | |
| parent | 11f9205c10b9d7227b0f8bc2da283917bc653274 (diff) | |
vhost-user: avoid branching during prefetch
Change-Id: I1f4421289b2f93b64a2470559d834717ef40e181
Signed-off-by: Damjan Marion <damarion@cisco.com>
| -rw-r--r-- | vnet/vnet/devices/virtio/vhost-user.c | 7 |
1 files 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 { |