diff options
| author | Julian Wiedmann <jwi@linux.vnet.ibm.com> | 2017-12-20 20:11:05 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-20 21:23:45 +0100 |
| commit | a65d14104349db217edfcd535521f2d61859cc1f (patch) | |
| tree | 7ff05986ada11ab4be9e9bfa6ef9d3333ff85574 /drivers/s390/net | |
| parent | s390/qeth: clean up l3_get_cast_type() (diff) | |
| download | linux-a65d14104349db217edfcd535521f2d61859cc1f.tar.xz linux-a65d14104349db217edfcd535521f2d61859cc1f.zip | |
s390/qeth: recognize non-IP multicast on L3 transmit
When
1. an skb has no neighbour, and
2. skb->protocol is not IP[V6],
we select the skb's cast type based on its destination MAC address.
The multicast check is currently restricted to Multicast IP-mapped MACs.
Extend it to also cover non-IP Multicast MACs.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net')
| -rw-r--r-- | drivers/s390/net/qeth_core.h | 3 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_l3_main.c | 3 |
2 files changed, 1 insertions, 5 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 146e2df113a1..100f7cce0260 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -505,9 +505,6 @@ struct qeth_qdio_info { int default_out_queue; }; -#define QETH_ETH_MAC_V4 0x0100 /* like v4 */ -#define QETH_ETH_MAC_V6 0x3333 /* like v6 */ - /** * buffer stuff for read channel */ diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index d9d944d67eb1..e168719c4b93 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -2353,7 +2353,6 @@ static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) static int qeth_l3_get_cast_type(struct sk_buff *skb) { - u16 hdr_mac = *((u16 *)skb->data); struct neighbour *n = NULL; struct dst_entry *dst; @@ -2385,7 +2384,7 @@ static int qeth_l3_get_cast_type(struct sk_buff *skb) /* ... and MAC address */ if (ether_addr_equal_64bits(eth_hdr(skb)->h_dest, skb->dev->broadcast)) return RTN_BROADCAST; - if (hdr_mac == QETH_ETH_MAC_V4 || hdr_mac == QETH_ETH_MAC_V6) + if (is_multicast_ether_addr(eth_hdr(skb)->h_dest)) return RTN_MULTICAST; /* default to unicast */ |