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[vlan] Allow external code to identify VLAN priority as well as tag

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2022-12-09 14:40:54 +00:00
parent b0ded89e91
commit 5e62b4bc6c
3 changed files with 19 additions and 7 deletions
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14
src/include/ipxe/vlan.h
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@@ -61,7 +61,19 @@ struct vlan_header {
*/
#define VLAN_PRIORITY_IS_VALID( priority ) ( (priority) <= 7 )
extern unsigned int vlan_tag ( struct net_device *netdev );
extern unsigned int vlan_tci ( struct net_device *netdev );
/**
* Get the VLAN tag
*
* @v netdev Network device
* @ret tag VLAN tag, or 0 if device is not a VLAN device
*/
static inline __attribute__ (( always_inline )) unsigned int
vlan_tag ( struct net_device *netdev ) {
return VLAN_TAG ( vlan_tci ( netdev ) );
}
extern int vlan_can_be_trunk ( struct net_device *trunk );
extern int vlan_create ( struct net_device *trunk, unsigned int tag,
unsigned int priority );