[netdevice] Make ll_broadcast per-netdevice rather than per-ll_protocol

IPoIB has a link-layer broadcast address that varies according to the
partition key.  We currently go through several contortions to pretend
that the link-layer address is a fixed constant; by making the
broadcast address a property of the network device rather than the
link-layer protocol it will be possible to simplify IPoIB's broadcast
handling.
This commit is contained in:
Michael Brown
2009-07-17 22:48:31 +01:00
parent 54ec3673cc
commit d09290161e
12 changed files with 49 additions and 58 deletions

View File

@@ -440,8 +440,7 @@ int aoe_attach ( struct ata_device *ata, struct net_device *netdev,
return -ENOMEM;
aoe->refcnt.free = aoe_free;
aoe->netdev = netdev_get ( netdev );
memcpy ( aoe->target, ethernet_protocol.ll_broadcast,
sizeof ( aoe->target ) );
memcpy ( aoe->target, netdev->ll_broadcast, sizeof ( aoe->target ) );
aoe->tag = AOE_TAG_MAGIC;
aoe->timer.expired = aoe_timer_expired;

View File

@@ -156,7 +156,7 @@ int arp_resolve ( struct net_device *netdev, struct net_protocol *net_protocol,
/* Transmit ARP request */
if ( ( rc = net_tx ( iobuf, netdev, &arp_protocol,
ll_protocol->ll_broadcast ) ) != 0 )
netdev->ll_broadcast ) ) != 0 )
return rc;
return -ENOENT;

View File

@@ -145,9 +145,26 @@ struct ll_protocol ethernet_protocol __ll_protocol = {
.ll_proto = htons ( ARPHRD_ETHER ),
.ll_addr_len = ETH_ALEN,
.ll_header_len = ETH_HLEN,
.ll_broadcast = eth_broadcast,
.push = eth_push,
.pull = eth_pull,
.ntoa = eth_ntoa,
.mc_hash = eth_mc_hash,
};
/**
* Allocate Ethernet device
*
* @v priv_size Size of driver private data
* @ret netdev Network device, or NULL
*/
struct net_device * alloc_etherdev ( size_t priv_size ) {
struct net_device *netdev;
netdev = alloc_netdev ( priv_size );
if ( netdev ) {
netdev->ll_protocol = &ethernet_protocol;
netdev->ll_broadcast = eth_broadcast;
netdev->max_pkt_len = ETH_FRAME_LEN;
}
return netdev;
}

View File

@@ -271,7 +271,7 @@ static int ipv4_ll_addr ( struct in_addr dest, struct in_addr src,
if ( dest.s_addr == INADDR_BROADCAST ) {
/* Broadcast address */
memcpy ( ll_dest, ll_protocol->ll_broadcast,
memcpy ( ll_dest, netdev->ll_broadcast,
ll_protocol->ll_addr_len );
return 0;
} else if ( IN_MULTICAST ( ntohl ( dest.s_addr ) ) ) {