1 files changed, 0 insertions, 782 deletions
diff --git a/gpxe/src/drivers/net/ipoib.c b/gpxe/src/drivers/net/ipoib.c
deleted file mode 100644
index 4b3741ec..00000000
--- a/gpxe/src/drivers/net/ipoib.c
+++ /dev/null
@@ -1,782 +0,0 @@
-/*
- * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stdint.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <byteswap.h>
-#include <errno.h>
-#include <gpxe/errortab.h>
-#include <gpxe/if_arp.h>
-#include <gpxe/iobuf.h>
-#include <gpxe/netdevice.h>
-#include <gpxe/infiniband.h>
-#include <gpxe/ib_pathrec.h>
-#include <gpxe/ib_mcast.h>
-#include <gpxe/ipoib.h>
-
-/** @file
- *
- * IP over Infiniband
- */
-
-/** Number of IPoIB send work queue entries */
-#define IPOIB_NUM_SEND_WQES 2
-
-/** Number of IPoIB receive work queue entries */
-#define IPOIB_NUM_RECV_WQES 4
-
-/** Number of IPoIB completion entries */
-#define IPOIB_NUM_CQES 8
-
-/** An IPoIB device */
-struct ipoib_device {
-	/** Network device */
-	struct net_device *netdev;
-	/** Underlying Infiniband device */
-	struct ib_device *ibdev;
-	/** Completion queue */
-	struct ib_completion_queue *cq;
-	/** Queue pair */
-	struct ib_queue_pair *qp;
-	/** Broadcast MAC */
-	struct ipoib_mac broadcast;
-	/** Joined to IPv4 broadcast multicast group
-	 *
-	 * This flag indicates whether or not we have initiated the
-	 * join to the IPv4 broadcast multicast group.
-	 */
-	int broadcast_joined;
-	/** IPv4 broadcast multicast group membership */
-	struct ib_mc_membership broadcast_membership;
-};
-
-/** Broadcast IPoIB address */
-static struct ipoib_mac ipoib_broadcast = {
-	.flags__qpn = htonl ( IB_QPN_BROADCAST ),
-	.gid.u.bytes = 	{ 0xff, 0x12, 0x40, 0x1b, 0x00, 0x00, 0x00, 0x00,
-			  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff },
-};
-
-/** Link status for "broadcast join in progress" */
-#define EINPROGRESS_JOINING ( EINPROGRESS | EUNIQ_01 )
-
-/** Human-readable message for the link status */
-struct errortab ipoib_errors[] __errortab = {
-	{ EINPROGRESS_JOINING, "Joining" },
-};
-
-/****************************************************************************
- *
- * IPoIB peer cache
- *
- ****************************************************************************
- */
-
-/**
- * IPoIB peer address
- *
- * The IPoIB link-layer header is only four bytes long and so does not
- * have sufficient room to store IPoIB MAC address(es).  We therefore
- * maintain a cache of MAC addresses identified by a single-byte key,
- * and abuse the spare two bytes within the link-layer header to
- * communicate these MAC addresses between the link-layer code and the
- * netdevice driver.
- */
-struct ipoib_peer {
-	/** Key */
-	uint8_t key;
-	/** MAC address */
-	struct ipoib_mac mac;
-};
-
-/** Number of IPoIB peer cache entries
- *
- * Must be a power of two.
- */
-#define IPOIB_NUM_CACHED_PEERS 4
-
-/** IPoIB peer address cache */
-static struct ipoib_peer ipoib_peer_cache[IPOIB_NUM_CACHED_PEERS];
-
-/** Oldest IPoIB peer cache entry index */
-static unsigned int ipoib_peer_cache_idx = 1;
-
-/**
- * Look up cached peer by key
- *
- * @v key		Peer cache key
- * @ret peer		Peer cache entry, or NULL
- */
-static struct ipoib_peer * ipoib_lookup_peer_by_key ( unsigned int key ) {
-	struct ipoib_peer *peer;
-	unsigned int i;
-
-	for ( i = 0 ; i < IPOIB_NUM_CACHED_PEERS ; i++ ) {
-		peer = &ipoib_peer_cache[i];
-		if ( peer->key == key )
-			return peer;
-	}
-
-	if ( key != 0 ) {
-		DBG ( "IPoIB warning: peer cache lost track of key %x while "
-		      "still in use\n", key );
-	}
-	return NULL;
-}
-
-/**
- * Store GID and QPN in peer cache
- *
- * @v mac		Peer MAC address
- * @ret peer		Peer cache entry
- */
-static struct ipoib_peer * ipoib_cache_peer ( const struct ipoib_mac *mac ) {
-	struct ipoib_peer *peer;
-	unsigned int key;
-	unsigned int i;
-
-	/* Look for existing cache entry */
-	for ( i = 0 ; i < IPOIB_NUM_CACHED_PEERS ; i++ ) {
-		peer = &ipoib_peer_cache[i];
-		if ( memcmp ( &peer->mac, mac, sizeof ( peer->mac ) ) == 0 )
-			return peer;
-	}
-
-	/* No entry found: create a new one */
-	key = ipoib_peer_cache_idx++;
-	peer = &ipoib_peer_cache[ key % IPOIB_NUM_CACHED_PEERS ];
-	if ( peer->key )
-		DBG ( "IPoIB peer %x evicted from cache\n", peer->key );
-
-	memset ( peer, 0, sizeof ( *peer ) );
-	peer->key = key;
-	memcpy ( &peer->mac, mac, sizeof ( peer->mac ) );
-	DBG ( "IPoIB peer %x has MAC %s\n",
-	      peer->key, ipoib_ntoa ( &peer->mac ) );
-	return peer;
-}
-
-/****************************************************************************
- *
- * IPoIB link layer
- *
- ****************************************************************************
- */
-
-/**
- * Add IPoIB link-layer header
- *
- * @v netdev		Network device
- * @v iobuf		I/O buffer
- * @v ll_dest		Link-layer destination address
- * @v ll_source		Source link-layer address
- * @v net_proto		Network-layer protocol, in network-byte order
- * @ret rc		Return status code
- */
-static int ipoib_push ( struct net_device *netdev __unused,
-			struct io_buffer *iobuf, const void *ll_dest,
-			const void *ll_source __unused, uint16_t net_proto ) {
-	struct ipoib_hdr *ipoib_hdr =
-		iob_push ( iobuf, sizeof ( *ipoib_hdr ) );
-	const struct ipoib_mac *dest_mac = ll_dest;
-	const struct ipoib_mac *src_mac = ll_source;
-	struct ipoib_peer *dest;
-	struct ipoib_peer *src;
-
-	/* Add link-layer addresses to cache */
-	dest = ipoib_cache_peer ( dest_mac );
-	src = ipoib_cache_peer ( src_mac );
-
-	/* Build IPoIB header */
-	ipoib_hdr->proto = net_proto;
-	ipoib_hdr->u.peer.dest = dest->key;
-	ipoib_hdr->u.peer.src = src->key;
-
-	return 0;
-}
-
-/**
- * Remove IPoIB link-layer header
- *
- * @v netdev		Network device
- * @v iobuf		I/O buffer
- * @ret ll_dest		Link-layer destination address
- * @ret ll_source	Source link-layer address
- * @ret net_proto	Network-layer protocol, in network-byte order
- * @ret rc		Return status code
- */
-static int ipoib_pull ( struct net_device *netdev,
-			struct io_buffer *iobuf, const void **ll_dest,
-			const void **ll_source, uint16_t *net_proto ) {
-	struct ipoib_device *ipoib = netdev->priv;
-	struct ipoib_hdr *ipoib_hdr = iobuf->data;
-	struct ipoib_peer *dest;
-	struct ipoib_peer *source;
-
-	/* Sanity check */
-	if ( iob_len ( iobuf ) < sizeof ( *ipoib_hdr ) ) {
-		DBG ( "IPoIB packet too short for link-layer header\n" );
-		DBG_HD ( iobuf->data, iob_len ( iobuf ) );
-		return -EINVAL;
-	}
-
-	/* Strip off IPoIB header */
-	iob_pull ( iobuf, sizeof ( *ipoib_hdr ) );
-
-	/* Identify source and destination addresses, and clear
-	 * reserved word in IPoIB header
-	 */
-	dest = ipoib_lookup_peer_by_key ( ipoib_hdr->u.peer.dest );
-	source = ipoib_lookup_peer_by_key ( ipoib_hdr->u.peer.src );
-	ipoib_hdr->u.reserved = 0;
-
-	/* Fill in required fields */
-	*ll_dest = ( dest ? &dest->mac : &ipoib->broadcast );
-	*ll_source = ( source ? &source->mac : &ipoib->broadcast );
-	*net_proto = ipoib_hdr->proto;
-
-	return 0;
-}
-
-/**
- * Initialise IPoIB link-layer address
- *
- * @v hw_addr		Hardware address
- * @v ll_addr		Link-layer address
- */
-static void ipoib_init_addr ( const void *hw_addr, void *ll_addr ) {
-	const struct ib_gid_half *guid = hw_addr;
-	struct ipoib_mac *mac = ll_addr;
-
-	memset ( mac, 0, sizeof ( *mac ) );
-	memcpy ( &mac->gid.u.half[1], guid, sizeof ( mac->gid.u.half[1] ) );
-}
-
-/**
- * Transcribe IPoIB link-layer address
- *
- * @v ll_addr	Link-layer address
- * @ret string	Link-layer address in human-readable format
- */
-const char * ipoib_ntoa ( const void *ll_addr ) {
-	static char buf[45];
-	const struct ipoib_mac *mac = ll_addr;
-
-	snprintf ( buf, sizeof ( buf ), "%08x:%08x:%08x:%08x:%08x",
-		   htonl ( mac->flags__qpn ), htonl ( mac->gid.u.dwords[0] ),
-		   htonl ( mac->gid.u.dwords[1] ),
-		   htonl ( mac->gid.u.dwords[2] ),
-		   htonl ( mac->gid.u.dwords[3] ) );
-	return buf;
-}
-
-/**
- * Hash multicast address
- *
- * @v af		Address family
- * @v net_addr		Network-layer address
- * @v ll_addr		Link-layer address to fill in
- * @ret rc		Return status code
- */
-static int ipoib_mc_hash ( unsigned int af __unused,
-			   const void *net_addr __unused,
-			   void *ll_addr __unused ) {
-
-	return -ENOTSUP;
-}
-
-/**
- * Generate Mellanox Ethernet-compatible compressed link-layer address
- *
- * @v ll_addr		Link-layer address
- * @v eth_addr		Ethernet-compatible address to fill in
- */
-static int ipoib_mlx_eth_addr ( const struct ib_gid_half *guid,
-				uint8_t *eth_addr ) {
-	eth_addr[0] = ( ( guid->u.bytes[3] == 2 ) ? 0x00 : 0x02 );
-	eth_addr[1] = guid->u.bytes[1];
-	eth_addr[2] = guid->u.bytes[2];
-	eth_addr[3] = guid->u.bytes[5];
-	eth_addr[4] = guid->u.bytes[6];
-	eth_addr[5] = guid->u.bytes[7];
-	return 0;
-}
-
-/** An IPoIB Ethernet-compatible compressed link-layer address generator */
-struct ipoib_eth_addr_handler {
-	/** GUID byte 1 */
-	uint8_t byte1;
-	/** GUID byte 2 */
-	uint8_t byte2;
-	/** Handler */
-	int ( * eth_addr ) ( const struct ib_gid_half *guid,
-			     uint8_t *eth_addr );
-};
-
-/** IPoIB Ethernet-compatible compressed link-layer address generators */
-static struct ipoib_eth_addr_handler ipoib_eth_addr_handlers[] = {
-	{ 0x02, 0xc9, ipoib_mlx_eth_addr },
-};
-
-/**
- * Generate Ethernet-compatible compressed link-layer address
- *
- * @v ll_addr		Link-layer address
- * @v eth_addr		Ethernet-compatible address to fill in
- */
-static int ipoib_eth_addr ( const void *ll_addr, void *eth_addr ) {
-	const struct ipoib_mac *ipoib_addr = ll_addr;
-	const struct ib_gid_half *guid = &ipoib_addr->gid.u.half[1];
-	struct ipoib_eth_addr_handler *handler;
-	unsigned int i;
-
-	for ( i = 0 ; i < ( sizeof ( ipoib_eth_addr_handlers ) /
-			    sizeof ( ipoib_eth_addr_handlers[0] ) ) ; i++ ) {
-		handler = &ipoib_eth_addr_handlers[i];
-		if ( ( handler->byte1 == guid->u.bytes[1] ) &&
-		     ( handler->byte2 == guid->u.bytes[2] ) ) {
-			return handler->eth_addr ( guid, eth_addr );
-		}
-	}
-	return -ENOTSUP;
-}
-
-/** IPoIB protocol */
-struct ll_protocol ipoib_protocol __ll_protocol = {
-	.name		= "IPoIB",
-	.ll_proto	= htons ( ARPHRD_INFINIBAND ),
-	.hw_addr_len	= sizeof ( struct ib_gid_half ),
-	.ll_addr_len	= IPOIB_ALEN,
-	.ll_header_len	= IPOIB_HLEN,
-	.push		= ipoib_push,
-	.pull		= ipoib_pull,
-	.init_addr	= ipoib_init_addr,
-	.ntoa		= ipoib_ntoa,
-	.mc_hash	= ipoib_mc_hash,
-	.eth_addr	= ipoib_eth_addr,
-};
-
-/**
- * Allocate IPoIB device
- *
- * @v priv_size		Size of driver private data
- * @ret netdev		Network device, or NULL
- */
-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->ll_broadcast = ( uint8_t * ) &ipoib_broadcast;
-		netdev->max_pkt_len = IB_MAX_PAYLOAD_SIZE;
-	}
-	return netdev;
-}
-
-/****************************************************************************
- *
- * IPoIB network device
- *
- ****************************************************************************
- */
-
-/**
- * Transmit packet via IPoIB network device
- *
- * @v netdev		Network device
- * @v iobuf		I/O buffer
- * @ret rc		Return status code
- */
-static int ipoib_transmit ( struct net_device *netdev,
-			    struct io_buffer *iobuf ) {
-	struct ipoib_device *ipoib = netdev->priv;
-	struct ib_device *ibdev = ipoib->ibdev;
-	struct ipoib_hdr *ipoib_hdr;
-	struct ipoib_peer *dest;
-	struct ib_address_vector av;
-	int rc;
-
-	/* Sanity check */
-	if ( iob_len ( iobuf ) < sizeof ( *ipoib_hdr ) ) {
-		DBGC ( ipoib, "IPoIB %p buffer too short\n", ipoib );
-		return -EINVAL;
-	}
-	ipoib_hdr = iobuf->data;
-
-	/* Attempting transmission while link is down will put the
-	 * queue pair into an error state, so don't try it.
-	 */
-	if ( ! ib_link_ok ( ibdev ) )
-		return -ENETUNREACH;
-
-	/* Identify destination address */
-	dest = ipoib_lookup_peer_by_key ( ipoib_hdr->u.peer.dest );
-	if ( ! dest )
-		return -ENXIO;
-	ipoib_hdr->u.reserved = 0;
-
-	/* Construct address vector */
-	memset ( &av, 0, sizeof ( av ) );
-	av.qpn = ( ntohl ( dest->mac.flags__qpn ) & IB_QPN_MASK );
-	av.gid_present = 1;
-	memcpy ( &av.gid, &dest->mac.gid, sizeof ( av.gid ) );
-	if ( ( rc = ib_resolve_path ( ibdev, &av ) ) != 0 ) {
-		/* Path not resolved yet */
-		return rc;
-	}
-
-	return ib_post_send ( ibdev, ipoib->qp, &av, iobuf );
-}
-
-/**
- * Handle IPoIB send completion
- *
- * @v ibdev		Infiniband device
- * @v qp		Queue pair
- * @v iobuf		I/O buffer
- * @v rc		Completion status code
- */
-static void ipoib_complete_send ( struct ib_device *ibdev __unused,
-				  struct ib_queue_pair *qp,
-				  struct io_buffer *iobuf, int rc ) {
-	struct ipoib_device *ipoib = ib_qp_get_ownerdata ( qp );
-
-	netdev_tx_complete_err ( ipoib->netdev, iobuf, rc );
-}
-
-/**
- * Handle IPoIB receive completion
- *
- * @v ibdev		Infiniband device
- * @v qp		Queue pair
- * @v av		Address vector, or NULL
- * @v iobuf		I/O buffer
- * @v rc		Completion status code
- */
-static void ipoib_complete_recv ( struct ib_device *ibdev __unused,
-				  struct ib_queue_pair *qp,
-				  struct ib_address_vector *av,
-				  struct io_buffer *iobuf, int rc ) {
-	struct ipoib_device *ipoib = ib_qp_get_ownerdata ( qp );
-	struct net_device *netdev = ipoib->netdev;
-	struct ipoib_hdr *ipoib_hdr;
-	struct ipoib_mac ll_src;
-	struct ipoib_peer *src;
-
-	if ( rc != 0 ) {
-		netdev_rx_err ( netdev, iobuf, rc );
-		return;
-	}
-
-	/* Sanity check */
-	if ( iob_len ( iobuf ) < sizeof ( struct ipoib_hdr ) ) {
-		DBGC ( ipoib, "IPoIB %p received packet too short to "
-		       "contain IPoIB header\n", ipoib );
-		DBGC_HD ( ipoib, iobuf->data, iob_len ( iobuf ) );
-		netdev_rx_err ( netdev, iobuf, -EIO );
-		return;
-	}
-	ipoib_hdr = iobuf->data;
-
-	/* Parse source address */
-	if ( av->gid_present ) {
-		ll_src.flags__qpn = htonl ( av->qpn );
-		memcpy ( &ll_src.gid, &av->gid, sizeof ( ll_src.gid ) );
-		src = ipoib_cache_peer ( &ll_src );
-		ipoib_hdr->u.peer.src = src->key;
-	}
-
-	/* Hand off to network layer */
-	netdev_rx ( netdev, iobuf );
-}
-
-/** IPoIB completion operations */
-static struct ib_completion_queue_operations ipoib_cq_op = {
-	.complete_send = ipoib_complete_send,
-	.complete_recv = ipoib_complete_recv,
-};
-
-/**
- * Poll IPoIB network device
- *
- * @v netdev		Network device
- */
-static void ipoib_poll ( struct net_device *netdev ) {
-	struct ipoib_device *ipoib = netdev->priv;
-	struct ib_device *ibdev = ipoib->ibdev;
-
-	ib_poll_eq ( ibdev );
-}
-
-/**
- * Enable/disable interrupts on IPoIB network device
- *
- * @v netdev		Network device
- * @v enable		Interrupts should be enabled
- */
-static void ipoib_irq ( struct net_device *netdev __unused,
-			int enable __unused ) {
-	/* No implementation */
-}
-
-/**
- * Handle IPv4 broadcast multicast group join completion
- *
- * @v ibdev		Infiniband device
- * @v qp		Queue pair
- * @v membership	Multicast group membership
- * @v rc		Status code
- * @v mad		Response MAD (or NULL on error)
- */
-void ipoib_join_complete ( struct ib_device *ibdev __unused,
-			   struct ib_queue_pair *qp __unused,
-			   struct ib_mc_membership *membership, int rc,
-			   union ib_mad *mad __unused ) {
-	struct ipoib_device *ipoib = container_of ( membership,
-				   struct ipoib_device, broadcast_membership );
-
-	/* Record join status as link status */
-	netdev_link_err ( ipoib->netdev, rc );
-}
-
-/**
- * Join IPv4 broadcast multicast group
- *
- * @v ipoib		IPoIB device
- * @ret rc		Return status code
- */
-static int ipoib_join_broadcast_group ( struct ipoib_device *ipoib ) {
-	int rc;
-
-	if ( ( rc = ib_mcast_join ( ipoib->ibdev, ipoib->qp,
-				    &ipoib->broadcast_membership,
-				    &ipoib->broadcast.gid,
-				    ipoib_join_complete ) ) != 0 ) {
-		DBGC ( ipoib, "IPoIB %p could not join broadcast group: %s\n",
-		       ipoib, strerror ( rc ) );
-		return rc;
-	}
-	ipoib->broadcast_joined = 1;
-
-	return 0;
-}
-
-/**
- * Leave IPv4 broadcast multicast group
- *
- * @v ipoib		IPoIB device
- */
-static void ipoib_leave_broadcast_group ( struct ipoib_device *ipoib ) {
-
-	if ( ipoib->broadcast_joined ) {
-		ib_mcast_leave ( ipoib->ibdev, ipoib->qp,
-				 &ipoib->broadcast_membership );
-		ipoib->broadcast_joined = 0;
-	}
-}
-
-/**
- * Open IPoIB network device
- *
- * @v netdev		Network device
- * @ret rc		Return status code
- */
-static int ipoib_open ( struct net_device *netdev ) {
-	struct ipoib_device *ipoib = netdev->priv;
-	struct ib_device *ibdev = ipoib->ibdev;
-	struct ipoib_mac *mac = ( ( struct ipoib_mac * ) netdev->ll_addr );
-	int rc;
-
-	/* Open IB device */
-	if ( ( rc = ib_open ( ibdev ) ) != 0 ) {
-		DBGC ( ipoib, "IPoIB %p could not open device: %s\n",
-		       ipoib, strerror ( rc ) );
-		goto err_ib_open;
-	}
-
-	/* Allocate completion queue */
-	ipoib->cq = ib_create_cq ( ibdev, IPOIB_NUM_CQES, &ipoib_cq_op );
-	if ( ! ipoib->cq ) {
-		DBGC ( ipoib, "IPoIB %p could not allocate completion queue\n",
-		       ipoib );
-		rc = -ENOMEM;
-		goto err_create_cq;
-	}
-
-	/* Allocate queue pair */
-	ipoib->qp = ib_create_qp ( ibdev, IB_QPT_UD,
-				   IPOIB_NUM_SEND_WQES, ipoib->cq,
-				   IPOIB_NUM_RECV_WQES, ipoib->cq );
-	if ( ! ipoib->qp ) {
-		DBGC ( ipoib, "IPoIB %p could not allocate queue pair\n",
-		       ipoib );
-		rc = -ENOMEM;
-		goto err_create_qp;
-	}
-	ib_qp_set_ownerdata ( ipoib->qp, ipoib );
-
-	/* Update MAC address with QPN */
-	mac->flags__qpn = htonl ( ipoib->qp->qpn );
-
-	/* Fill receive rings */
-	ib_refill_recv ( ibdev, ipoib->qp );
-
-	/* Fake a link status change to join the broadcast group */
-	ipoib_link_state_changed ( ibdev );
-
-	return 0;
-
-	ib_destroy_qp ( ibdev, ipoib->qp );
- err_create_qp:
-	ib_destroy_cq ( ibdev, ipoib->cq );
- err_create_cq:
-	ib_close ( ibdev );
- err_ib_open:
-	return rc;
-}
-
-/**
- * Close IPoIB network device
- *
- * @v netdev		Network device
- */
-static void ipoib_close ( struct net_device *netdev ) {
-	struct ipoib_device *ipoib = netdev->priv;
-	struct ib_device *ibdev = ipoib->ibdev;
-	struct ipoib_mac *mac = ( ( struct ipoib_mac * ) netdev->ll_addr );
-
-	/* Leave broadcast group */
-	ipoib_leave_broadcast_group ( ipoib );
-
-	/* Remove QPN from MAC address */
-	mac->flags__qpn = 0;
-
-	/* Tear down the queues */
-	ib_destroy_qp ( ibdev, ipoib->qp );
-	ib_destroy_cq ( ibdev, ipoib->cq );
-
-	/* Close IB device */
-	ib_close ( ibdev );
-}
-
-/** IPoIB network device operations */
-static struct net_device_operations ipoib_operations = {
-	.open		= ipoib_open,
-	.close		= ipoib_close,
-	.transmit	= ipoib_transmit,
-	.poll		= ipoib_poll,
-	.irq		= ipoib_irq,
-};
-
-/**
- * Handle link status change
- *
- * @v ibdev		Infiniband device
- */
-void ipoib_link_state_changed ( struct ib_device *ibdev ) {
-	struct net_device *netdev = ib_get_ownerdata ( ibdev );
-	struct ipoib_device *ipoib = netdev->priv;
-	struct ipoib_mac *mac = ( ( struct ipoib_mac * ) netdev->ll_addr );
-	int rc;
-
-	/* Leave existing broadcast group */
-	ipoib_leave_broadcast_group ( ipoib );
-
-	/* Update MAC address based on potentially-new GID prefix */
-	memcpy ( &mac->gid.u.half[0], &ibdev->gid.u.half[0],
-		 sizeof ( mac->gid.u.half[0] ) );
-
-	/* Update broadcast GID based on potentially-new partition key */
-	ipoib->broadcast.gid.u.words[2] =
-		htons ( ibdev->pkey | IB_PKEY_FULL );
-
-	/* Set net device link state to reflect Infiniband link state */
-	rc = ib_link_rc ( ibdev );
-	netdev_link_err ( netdev, ( rc ? rc : -EINPROGRESS_JOINING ) );
-
-	/* Join new broadcast group */
-	if ( ib_link_ok ( ibdev ) &&
-	     ( ( rc = ipoib_join_broadcast_group ( ipoib ) ) != 0 ) ) {
-		DBGC ( ipoib, "IPoIB %p could not rejoin broadcast group: "
-		       "%s\n", ipoib, strerror ( rc ) );
-		netdev_link_err ( netdev, rc );
-		return;
-	}
-}
-
-/**
- * Probe IPoIB device
- *
- * @v ibdev		Infiniband device
- * @ret rc		Return status code
- */
-int ipoib_probe ( struct ib_device *ibdev ) {
-	struct net_device *netdev;
-	struct ipoib_device *ipoib;
-	int rc;
-
-	/* Allocate network device */
-	netdev = alloc_ipoibdev ( sizeof ( *ipoib ) );
-	if ( ! netdev )
-		return -ENOMEM;
-	netdev_init ( netdev, &ipoib_operations );
-	ipoib = netdev->priv;
-	ib_set_ownerdata ( ibdev, netdev );
-	netdev->dev = ibdev->dev;
-	memset ( ipoib, 0, sizeof ( *ipoib ) );
-	ipoib->netdev = netdev;
-	ipoib->ibdev = ibdev;
-
-	/* Extract hardware address */
-	memcpy ( netdev->hw_addr, &ibdev->gid.u.half[1],
-		 sizeof ( ibdev->gid.u.half[1] ) );
-
-	/* Set default broadcast address */
-	memcpy ( &ipoib->broadcast, &ipoib_broadcast,
-		 sizeof ( ipoib->broadcast ) );
-	netdev->ll_broadcast = ( ( uint8_t * ) &ipoib->broadcast );
-
-	/* Register network device */
-	if ( ( rc = register_netdev ( netdev ) ) != 0 )
-		goto err_register_netdev;
-
-	return 0;
-
- err_register_netdev:
-	netdev_nullify ( netdev );
-	netdev_put ( netdev );
-	return rc;
-}
-
-/**
- * Remove IPoIB device
- *
- * @v ibdev		Infiniband device
- */
-void ipoib_remove ( struct ib_device *ibdev ) {
-	struct net_device *netdev = ib_get_ownerdata ( ibdev );
-
-	unregister_netdev ( netdev );
-	netdev_nullify ( netdev );
-	netdev_put ( netdev );
-}