diff options
| author | Alex Williamson <alex.williamson@hp.com> | 2009-06-05 14:47:02 -0600 |
|---|---|---|
| committer | Mark McLoughlin <markmc@redhat.com> | 2009-06-09 11:38:50 +0100 |
| commit | bbe2f399b222f1f2fcf5cd2ea78e4f5c9a66c64e (patch) | |
| tree | 990edb89cb7d8f94089cf1e13aa369c76c9050f5 | |
| parent | f10c592e8d35e59a11cf7af1484ab1051acc3ef6 (diff) | |
virtio-net: reorganize receive_filter()
Reorganize receive_filter to better handle the split between
unicast and multicast filtering. This allows us to skip the
broadcast check on unicast packets and leads to more opportunities
for optimization.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
| -rw-r--r-- | hw/virtio-net.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/hw/virtio-net.c b/hw/virtio-net.c index 13eb0d1f09..445976a41a 100644 --- a/hw/virtio-net.c +++ b/hw/virtio-net.c @@ -347,14 +347,17 @@ static int receive_filter(VirtIONet *n, const uint8_t *buf, int size) return 0; } - if ((ptr[0] & 1) && n->allmulti) - return 1; - - if (!memcmp(ptr, bcast, sizeof(bcast))) - return 1; - - if (!memcmp(ptr, n->mac, ETH_ALEN)) - return 1; + if (ptr[0] & 1) { // multicast + if (!memcmp(ptr, bcast, sizeof(bcast))) { + return 1; + } else if (n->allmulti) { + return 1; + } + } else { // unicast + if (!memcmp(ptr, n->mac, ETH_ALEN)) { + return 1; + } + } for (i = 0; i < n->mac_table.in_use; i++) { if (!memcmp(ptr, &n->mac_table.macs[i * ETH_ALEN], ETH_ALEN)) |