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#ifndef _GPXE_IPOIB_H
#define _GPXE_IPOIB_H
/** @file
*
* IP over Infiniband
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/infiniband.h>
/** IPoIB MAC address length */
#define IPOIB_ALEN 20
/** An IPoIB MAC address */
struct ipoib_mac {
/** Queue pair number
*
* MSB must be zero; QPNs are only 24-bit.
*/
uint32_t qpn;
/** Port GID */
struct ib_gid gid;
} __attribute__ (( packed ));
/** IPoIB link-layer header length */
#define IPOIB_HLEN 4
/** IPoIB link-layer header */
struct ipoib_hdr {
/** Network-layer protocol */
uint16_t proto;
/** Reserved, must be zero */
union {
/** Reserved, must be zero */
uint16_t reserved;
/** Peer addresses
*
* We use these fields internally to represent the
* peer addresses using a lookup key. There simply
* isn't enough room in the IPoIB header to store
* literal source or destination MAC addresses.
*/
struct {
/** Destination address key */
uint8_t dest;
/** Source address key */
uint8_t src;
} __attribute__ (( packed )) peer;
} __attribute__ (( packed )) u;
} __attribute__ (( packed ));
extern const char * ipoib_ntoa ( const void *ll_addr );
extern void ipoib_link_state_changed ( struct ib_device *ibdev );
extern int ipoib_probe ( struct ib_device *ibdev );
extern void ipoib_remove ( struct ib_device *ibdev );
extern struct net_device * alloc_ipoibdev ( size_t priv_size );
#endif /* _GPXE_IPOIB_H */
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