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https://github.com/xcat2/xNBA.git
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Michael Brown
1f5c0239b4
IPoIB and the SMA have separate constants for the packet size to be used to I/O buffer allocations. Merge these into the single IB_MAX_PAYLOAD_SIZE constant. (Various other points in the Infiniband stack have hard-coded assumptions of a 2048-byte payload; we don't currently support variable MTUs.)
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
#ifndef _GPXE_IPOIB_H
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#define _GPXE_IPOIB_H
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/** @file
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*
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* IP over Infiniband
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <gpxe/infiniband.h>
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/** IPoIB MAC address length */
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#define IPOIB_ALEN 20
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/** An IPoIB MAC address */
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struct ipoib_mac {
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/** Queue pair number
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*
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* MSB must be zero; QPNs are only 24-bit.
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*/
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uint32_t qpn;
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/** Port GID */
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struct ib_gid gid;
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} __attribute__ (( packed ));
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/** IPoIB link-layer header length */
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#define IPOIB_HLEN 4
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/** IPoIB link-layer header */
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struct ipoib_hdr {
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/** Network-layer protocol */
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uint16_t proto;
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/** Reserved, must be zero */
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union {
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/** Reserved, must be zero */
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uint16_t reserved;
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/** Peer addresses
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*
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* We use these fields internally to represent the
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* peer addresses using a lookup key. There simply
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* isn't enough room in the IPoIB header to store
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* literal source or destination MAC addresses.
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*/
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struct {
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/** Destination address key */
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uint8_t dest;
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/** Source address key */
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uint8_t src;
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} __attribute__ (( packed )) peer;
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} __attribute__ (( packed )) u;
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} __attribute__ (( packed ));
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extern const char * ipoib_ntoa ( const void *ll_addr );
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extern void ipoib_link_state_changed ( struct ib_device *ibdev );
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extern int ipoib_probe ( struct ib_device *ibdev );
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extern void ipoib_remove ( struct ib_device *ibdev );
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extern struct net_device * alloc_ipoibdev ( size_t priv_size );
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#endif /* _GPXE_IPOIB_H */
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