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>
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@ -347,14 +347,17 @@ static int receive_filter(VirtIONet *n, const uint8_t *buf, int size)
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return 0;
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return 0;
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}
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}
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if ((ptr[0] & 1) && n->allmulti)
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if (ptr[0] & 1) { // multicast
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return 1;
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if (!memcmp(ptr, bcast, sizeof(bcast))) {
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return 1;
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if (!memcmp(ptr, bcast, sizeof(bcast)))
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} else if (n->allmulti) {
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return 1;
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return 1;
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}
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if (!memcmp(ptr, n->mac, ETH_ALEN))
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} else { // unicast
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return 1;
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if (!memcmp(ptr, n->mac, ETH_ALEN)) {
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return 1;
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}
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}
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for (i = 0; i < n->mac_table.in_use; i++) {
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for (i = 0; i < n->mac_table.in_use; i++) {
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if (!memcmp(ptr, &n->mac_table.macs[i * ETH_ALEN], ETH_ALEN))
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if (!memcmp(ptr, &n->mac_table.macs[i * ETH_ALEN], ETH_ALEN))
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