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qeth: Cleanup for cast-type determination.

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Clear separation of cast-type determination (send path) for layer-2
resp. layer-3. Allowing to have inline functions for qeth layer-
discipline.

Signed-off-by: Klaus-Dieter Wacker <kdwacker@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Klaus-Dieter Wacker
2009-08-26 02:01:08 +00:00
committed by David S. Miller
parent e806904057
commit ce73e10ee0
4 changed files with 57 additions and 82 deletions
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49
drivers/s390/net/qeth_core_main.c
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@@ -2952,55 +2952,6 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev,
}
EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
int qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
{
int cast_type = RTN_UNSPEC;
if (card->info.type == QETH_CARD_TYPE_OSN)
return cast_type;
if (skb_dst(skb) && skb_dst(skb)->neighbour) {
cast_type = skb_dst(skb)->neighbour->type;
if ((cast_type == RTN_BROADCAST) ||
(cast_type == RTN_MULTICAST) ||
(cast_type == RTN_ANYCAST))
return cast_type;
else
return RTN_UNSPEC;
}
/* try something else */
if (skb->protocol == ETH_P_IPV6)
return (skb_network_header(skb)[24] == 0xff) ?
RTN_MULTICAST : 0;
else if (skb->protocol == ETH_P_IP)
return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
RTN_MULTICAST : 0;
/* ... */
if (!memcmp(skb->data, skb->dev->broadcast, 6))
return RTN_BROADCAST;
else {
u16 hdr_mac;
hdr_mac = *((u16 *)skb->data);
/* tr multicast? */
switch (card->info.link_type) {
case QETH_LINK_TYPE_HSTR:
case QETH_LINK_TYPE_LANE_TR:
if ((hdr_mac == QETH_TR_MAC_NC) ||
(hdr_mac == QETH_TR_MAC_C))
return RTN_MULTICAST;
break;
/* eth or so multicast? */
default:
if ((hdr_mac == QETH_ETH_MAC_V4) ||
(hdr_mac == QETH_ETH_MAC_V6))
return RTN_MULTICAST;
}
}
return cast_type;
}
EXPORT_SYMBOL_GPL(qeth_get_cast_type);
int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
int ipv, int cast_type)
{