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#ifndef _GPXE_INFINIBAND_H
#define _GPXE_INFINIBAND_H
/** @file
*
* Infiniband protocol
*
*/
#include <stdint.h>
#include <gpxe/netdevice.h>
/** An Infiniband Global Identifier */
struct ib_gid {
uint8_t bytes[16];
};
/** An Infiniband Global Route Header */
struct ib_global_route_header {
/** IP version, traffic class, and flow label
*
* 4 bits : Version of the GRH
* 8 bits : Traffic class
* 20 bits : Flow label
*/
uint32_t ipver_tclass_flowlabel;
/** Payload length */
uint16_t paylen;
/** Next header */
uint8_t nxthdr;
/** Hop limit */
uint8_t hoplmt;
/** Source GID */
struct ib_gid sgid;
/** Destiniation GID */
struct ib_gid dgid;
} __attribute__ (( packed ));
/** Infiniband MAC address length */
#define IB_ALEN 20
/** An Infiniband MAC address */
struct ib_mac {
/** Queue pair number
*
* MSB must be zero; QPNs are only 24-bit.
*/
uint32_t qpn;
/** Port GID */
struct ib_gid gid;
} __attribute__ (( packed ));
/** Infiniband link-layer header length */
#define IB_HLEN 4
/** An Infiniband link-layer header */
struct ibhdr {
/** Network-layer protocol */
uint16_t proto;
/** Reserved, must be zero */
uint16_t reserved;
} __attribute__ (( packed ));
extern struct ll_protocol infiniband_protocol;
extern const char * ib_ntoa ( const void *ll_addr );
/**
* Allocate Infiniband device
*
* @v priv_size Size of driver private data
* @ret netdev Network device, or NULL
*/
static inline struct net_device * alloc_ibdev ( size_t priv_size ) {
struct net_device *netdev;
netdev = alloc_netdev ( priv_size );
if ( netdev ) {
netdev->ll_protocol = &infiniband_protocol;
}
return netdev;
}
#endif /* _GPXE_INFINIBAND_H */
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