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[netdevice] Separate out the concept of hardware and link-layer addresses

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The hardware address is an intrinsic property of the hardware, while
the link-layer address can be changed at runtime.  This separation is
exposed via APIs such as PXE and EFI, but is currently elided by gPXE.

Expose the hardware and link-layer addresses as separate properties
within a net device.  Drivers should now fill in hw_addr, which will
be used to initialise ll_addr at the time of calling
register_netdev().
This commit is contained in:
Michael Brown
2009-08-11 20:19:53 +01:00
parent b3db99a38d
commit 37a0aab4ff
22 changed files with 71 additions and 82 deletions
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6
src/net/netdevice.c
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@@ -357,6 +357,10 @@ int register_netdev ( struct net_device *netdev ) {
snprintf ( netdev->name, sizeof ( netdev->name ), "net%d",
ifindex++ );
/* Set initial link-layer address */
memcpy ( netdev->ll_addr, netdev->hw_addr,
netdev->ll_protocol->ll_addr_len );
/* Register per-netdev configuration settings */
if ( ( rc = register_settings ( netdev_settings ( netdev ),
NULL ) ) != 0 ) {
@@ -370,7 +374,7 @@ int register_netdev ( struct net_device *netdev ) {
list_add_tail ( &netdev->list, &net_devices );
DBGC ( netdev, "NETDEV %p registered as %s (phys %s hwaddr %s)\n",
netdev, netdev->name, netdev->dev->name,
netdev_hwaddr ( netdev ) );
netdev_addr ( netdev ) );
return 0;
}