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[vlan] Expose vlan_find() to network card drivers 

Some network cards automatically strip the VLAN header, providing the
VLAN tag via a side channel such as a completion queue entry.  These
cards need to be able to report receive completions directly against
the relevant VLAN device.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2010-12-01 18:46:50 +00:00
parent 51a9e517f2
commit 5273c2748c
2 changed files with 3 additions and 2 deletions
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2
src/include/ipxe/vlan.h
View File

@ -59,6 +59,8 @@ struct vlan_header {
*/
#define VLAN_PRIORITY_IS_VALID( priority ) ( (priority) <= 7 )
extern struct net_device * vlan_find ( struct net_device *trunk,
unsigned int tag );
extern int vlan_can_be_trunk ( struct net_device *trunk );
extern int vlan_create ( struct net_device *trunk, unsigned int tag,
unsigned int priority );

3
src/net/vlan.c
View File

@ -193,8 +193,7 @@ static void vlan_sync ( struct net_device *netdev ) {
* @v tag VLAN tag
* @ret netdev VLAN device, if any
*/
static struct net_device * vlan_find ( struct net_device *trunk,
uint16_t tag ) {
struct net_device * vlan_find ( struct net_device *trunk, unsigned int tag ) {
struct net_device *netdev;
struct vlan_device *vlan;