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| author | Michael Brown | 2014-07-30 19:11:20 +0200 |
|---|---|---|
| committer | Michael Brown | 2014-07-30 19:22:09 +0200 |
| commit | 98d09a1e0372226bdea46f7dc8ce7f0cae98f08c (patch) | |
| tree | e530ade6bf7cda0565eddb67cfa250635c22697b /src/include | |
| parent | [efi] Report exact failure when unable to open the device path (diff) | |
| download | ipxe-98d09a1e0372226bdea46f7dc8ce7f0cae98f08c.tar.gz ipxe-98d09a1e0372226bdea46f7dc8ce7f0cae98f08c.tar.xz ipxe-98d09a1e0372226bdea46f7dc8ce7f0cae98f08c.zip | |
[netdevice] Avoid registering duplicate network devices
Reject network devices which appear to be duplicates of those already
available via a different underlying hardware device. On a Xen PV-HVM
system, this allows us to filter out the emulated PCI NICs (which
would otherwise appear alongside the netfront NICs).
Note that we cannot use the Xen facility to "unplug" the emulated PCI
NICs, since there is no guarantee that the OS we subsequently load
will have a native netfront driver.
We permit devices with the same MAC address if they are attached to
the same underlying hardware device (e.g. VLAN devices).
Inspired-by: Marin Hannache <git@mareo.fr>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/ipxe/netdevice.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/ipxe/netdevice.h b/src/include/ipxe/netdevice.h index 6ef9cb1e5..95ad1cf1b 100644 --- a/src/include/ipxe/netdevice.h +++ b/src/include/ipxe/netdevice.h @@ -685,6 +685,8 @@ extern struct net_device * find_netdev ( const char *name ); extern struct net_device * find_netdev_by_index ( unsigned int index ); extern struct net_device * find_netdev_by_location ( unsigned int bus_type, unsigned int location ); +extern struct net_device * +find_netdev_by_ll_addr ( struct ll_protocol *ll_protocol, const void *ll_addr ); extern struct net_device * last_opened_netdev ( void ); extern int net_tx ( struct io_buffer *iobuf, struct net_device *netdev, struct net_protocol *net_protocol, const void *ll_dest, |