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#ifndef _GPXE_IPOIB_H
#define _GPXE_IPOIB_H
/** @file
*
* IP over Infiniband
*/
#include <gpxe/infiniband.h>
/** IPoIB packet length */
#define IPOIB_PKT_LEN 2048
/** 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 24
/**
* IPoIB link-layer header pseudo portion
*
* This part doesn't actually exist on the wire, but it provides a
* convenient way to fit into the typical network device model.
*/
struct ipoib_pseudo_hdr {
/** Peer address */
struct ipoib_mac peer;
} __attribute__ (( packed ));
/** IPoIB link-layer header real portion */
struct ipoib_real_hdr {
/** Network-layer protocol */
uint16_t proto;
/** Reserved, must be zero */
uint16_t reserved;
} __attribute__ (( packed ));
/** An IPoIB link-layer header */
struct ipoib_hdr {
/** Pseudo portion */
struct ipoib_pseudo_hdr pseudo;
/** Real portion */
struct ipoib_real_hdr real;
} __attribute__ (( packed ));
extern struct ll_protocol ipoib_protocol;
extern const char * ipoib_ntoa ( const void *ll_addr );
/**
* Allocate IPoIB device
*
* @v priv_size Size of driver private data
* @ret netdev Network device, or NULL
*/
static inline struct net_device * alloc_ipoibdev ( size_t priv_size ) {
struct net_device *netdev;
netdev = alloc_netdev ( priv_size );
if ( netdev ) {
netdev->ll_protocol = &ipoib_protocol;
netdev->max_pkt_len = IPOIB_PKT_LEN;
}
return netdev;
}
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 );
#endif /* _GPXE_IPOIB_H */
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