gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 631 deletions

diff --git a/gpxe/src/arch/i386/drivers/net/undinet.c b/gpxe/src/arch/i386/drivers/net/undinet.c
deleted file mode 100644
index 83b79e7f..00000000
--- a/gpxe/src/arch/i386/drivers/net/undinet.c
+++ /dev/null
@@ -1,631 +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 <string.h>
-#include <pxe.h>
-#include <realmode.h>
-#include <pic8259.h>
-#include <biosint.h>
-#include <pnpbios.h>
-#include <basemem_packet.h>
-#include <gpxe/io.h>
-#include <gpxe/iobuf.h>
-#include <gpxe/netdevice.h>
-#include <gpxe/if_ether.h>
-#include <gpxe/ethernet.h>
-#include <undi.h>
-#include <undinet.h>
-#include <pxeparent.h>
-
-
-/** @file
- *
- * UNDI network device driver
- *
- */
-
-/** An UNDI NIC */
-struct undi_nic {
-	/** Assigned IRQ number */
-	unsigned int irq;
-	/** Currently processing ISR */
-	int isr_processing;
-	/** Bug workarounds */
-	int hacks;
-};
-
-/**
- * @defgroup undi_hacks UNDI workarounds
- * @{
- */
-
-/** Work around Etherboot 5.4 bugs */
-#define UNDI_HACK_EB54		0x0001
-
-/** @} */
-
-static void undinet_close ( struct net_device *netdev );
-
-/** Address of UNDI entry point */
-static SEGOFF16_t undinet_entry;
-
-/*****************************************************************************
- *
- * UNDI interrupt service routine
- *
- *****************************************************************************
- */
-
-/**
- * UNDI interrupt service routine
- *
- * The UNDI ISR increments a counter (@c trigger_count) and exits.
- */
-extern void undiisr ( void );
-
-/** IRQ number */
-uint8_t __data16 ( undiisr_irq );
-#define undiisr_irq __use_data16 ( undiisr_irq )
-
-/** IRQ chain vector */
-struct segoff __data16 ( undiisr_next_handler );
-#define undiisr_next_handler __use_data16 ( undiisr_next_handler )
-
-/** IRQ trigger count */
-volatile uint8_t __data16 ( undiisr_trigger_count ) = 0;
-#define undiisr_trigger_count __use_data16 ( undiisr_trigger_count )
-
-/** Last observed trigger count */
-static unsigned int last_trigger_count = 0;
-
-/**
- * Hook UNDI interrupt service routine
- *
- * @v irq		IRQ number
- */
-static void undinet_hook_isr ( unsigned int irq ) {
-
-	assert ( irq <= IRQ_MAX );
-	assert ( undiisr_irq == 0 );
-
-	undiisr_irq = irq;
-	hook_bios_interrupt ( IRQ_INT ( irq ),
-			      ( ( unsigned int ) undiisr ),
-			      &undiisr_next_handler );
-}
-
-/**
- * Unhook UNDI interrupt service routine
- *
- * @v irq		IRQ number
- */
-static void undinet_unhook_isr ( unsigned int irq ) {
-
-	assert ( irq <= IRQ_MAX );
-
-	unhook_bios_interrupt ( IRQ_INT ( irq ),
-				( ( unsigned int ) undiisr ),
-				&undiisr_next_handler );
-	undiisr_irq = 0;
-}
-
-/**
- * Test to see if UNDI ISR has been triggered
- *
- * @ret triggered	ISR has been triggered since last check
- */
-static int undinet_isr_triggered ( void ) {
-	unsigned int this_trigger_count;
-
-	/* Read trigger_count.  Do this only once; it is volatile */
-	this_trigger_count = undiisr_trigger_count;
-
-	if ( this_trigger_count == last_trigger_count ) {
-		/* Not triggered */
-		return 0;
-	} else {
-		/* Triggered */
-		last_trigger_count = this_trigger_count;
-		return 1;
-	}
-}
-
-/*****************************************************************************
- *
- * UNDI network device interface
- *
- *****************************************************************************
- */
-
-/** UNDI transmit buffer descriptor */
-static struct s_PXENV_UNDI_TBD __data16 ( undinet_tbd );
-#define undinet_tbd __use_data16 ( undinet_tbd )
-
-/**
- * Transmit packet
- *
- * @v netdev		Network device
- * @v iobuf		I/O buffer
- * @ret rc		Return status code
- */
-static int undinet_transmit ( struct net_device *netdev,
-			      struct io_buffer *iobuf ) {
-	struct s_PXENV_UNDI_TRANSMIT undi_transmit;
-	size_t len = iob_len ( iobuf );
-	int rc;
-
-	/* Technically, we ought to make sure that the previous
-	 * transmission has completed before we re-use the buffer.
-	 * However, many PXE stacks (including at least some Intel PXE
-	 * stacks and Etherboot 5.4) fail to generate TX completions.
-	 * In practice this won't be a problem, since our TX datapath
-	 * has a very low packet volume and we can get away with
-	 * assuming that a TX will be complete by the time we want to
-	 * transmit the next packet.
-	 */
-
-	/* Copy packet to UNDI I/O buffer */
-	if ( len > sizeof ( basemem_packet ) )
-		len = sizeof ( basemem_packet );
-	memcpy ( &basemem_packet, iobuf->data, len );
-
-	/* Create PXENV_UNDI_TRANSMIT data structure */
-	memset ( &undi_transmit, 0, sizeof ( undi_transmit ) );
-	undi_transmit.DestAddr.segment = rm_ds;
-	undi_transmit.DestAddr.offset = __from_data16 ( &undinet_tbd );
-	undi_transmit.TBD.segment = rm_ds;
-	undi_transmit.TBD.offset = __from_data16 ( &undinet_tbd );
-
-	/* Create PXENV_UNDI_TBD data structure */
-	undinet_tbd.ImmedLength = len;
-	undinet_tbd.Xmit.segment = rm_ds;
-	undinet_tbd.Xmit.offset = __from_data16 ( basemem_packet );
-
-	/* Issue PXE API call */
-	if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_TRANSMIT,
-				     &undi_transmit,
-				     sizeof ( undi_transmit ) ) ) != 0 )
-		goto done;
-
-	/* Free I/O buffer */
-	netdev_tx_complete ( netdev, iobuf );
-
- done:
-	return rc;
-}
-
-/** 
- * Poll for received packets
- *
- * @v netdev		Network device
- *
- * Fun, fun, fun.  UNDI drivers don't use polling; they use
- * interrupts.  We therefore cheat and pretend that an interrupt has
- * occurred every time undinet_poll() is called.  This isn't too much
- * of a hack; PCI devices share IRQs and so the first thing that a
- * proper ISR should do is call PXENV_UNDI_ISR to determine whether or
- * not the UNDI NIC generated the interrupt; there is no harm done by
- * spurious calls to PXENV_UNDI_ISR.  Similarly, we wouldn't be
- * handling them any more rapidly than the usual rate of
- * undinet_poll() being called even if we did implement a full ISR.
- * So it should work.  Ha!
- *
- * Addendum (21/10/03).  Some cards don't play nicely with this trick,
- * so instead of doing it the easy way we have to go to all the hassle
- * of installing a genuine interrupt service routine and dealing with
- * the wonderful 8259 Programmable Interrupt Controller.  Joy.
- *
- * Addendum (10/07/07).  When doing things such as iSCSI boot, in
- * which we have to co-operate with a running OS, we can't get away
- * with the "ISR-just-increments-a-counter-and-returns" trick at all,
- * because it involves tying up the PIC for far too long, and other
- * interrupt-dependent components (e.g. local disks) start breaking.
- * We therefore implement a "proper" ISR which calls PXENV_UNDI_ISR
- * from within interrupt context in order to deassert the device
- * interrupt, and sends EOI if applicable.
- */
-static void undinet_poll ( struct net_device *netdev ) {
-	struct undi_nic *undinic = netdev->priv;
-	struct s_PXENV_UNDI_ISR undi_isr;
-	struct io_buffer *iobuf = NULL;
-	size_t len;
-	size_t frag_len;
-	size_t max_frag_len;
-	int rc;
-
-	if ( ! undinic->isr_processing ) {
-		/* Do nothing unless ISR has been triggered */
-		if ( ! undinet_isr_triggered() ) {
-			/* Allow interrupt to occur */
-			__asm__ __volatile__ ( REAL_CODE ( "sti\n\t"
-							   "nop\n\t"
-							   "nop\n\t"
-							   "cli\n\t" ) : : );
-			return;
-		}
-
-		/* Start ISR processing */
-		undinic->isr_processing = 1;
-		undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_PROCESS;
-	} else {
-		/* Continue ISR processing */
-		undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_GET_NEXT;
-	}
-
-	/* Run through the ISR loop */
-	while ( 1 ) {
-		if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_ISR,
-					     &undi_isr,
-					     sizeof ( undi_isr ) ) ) != 0 )
-			break;
-		switch ( undi_isr.FuncFlag ) {
-		case PXENV_UNDI_ISR_OUT_TRANSMIT:
-			/* We don't care about transmit completions */
-			break;
-		case PXENV_UNDI_ISR_OUT_RECEIVE:
-			/* Packet fragment received */
-			len = undi_isr.FrameLength;
-			frag_len = undi_isr.BufferLength;
-			if ( ( len == 0 ) || ( len < frag_len ) ) {
-				/* Don't laugh.  VMWare does it. */
-				DBGC ( undinic, "UNDINIC %p reported insane "
-				       "fragment (%zd of %zd bytes)\n",
-				       undinic, frag_len, len );
-				netdev_rx_err ( netdev, NULL, -EINVAL );
-				break;
-			}
-			if ( ! iobuf )
-				iobuf = alloc_iob ( len );
-			if ( ! iobuf ) {
-				DBGC ( undinic, "UNDINIC %p could not "
-				       "allocate %zd bytes for RX buffer\n",
-				       undinic, len );
-				/* Fragment will be dropped */
-				netdev_rx_err ( netdev, NULL, -ENOMEM );
-				goto done;
-			}
-			max_frag_len = iob_tailroom ( iobuf );
-			if ( frag_len > max_frag_len ) {
-				DBGC ( undinic, "UNDINIC %p fragment too big "
-				       "(%zd+%zd does not fit into %zd)\n",
-				       undinic, iob_len ( iobuf ), frag_len,
-				       ( iob_len ( iobuf ) + max_frag_len ) );
-				frag_len = max_frag_len;
-			}
-			copy_from_real ( iob_put ( iobuf, frag_len ),
-					 undi_isr.Frame.segment,
-					 undi_isr.Frame.offset, frag_len );
-			if ( iob_len ( iobuf ) == len ) {
-				/* Whole packet received; deliver it */
-				netdev_rx ( netdev, iob_disown ( iobuf ) );
-				/* Etherboot 5.4 fails to return all packets
-				 * under mild load; pretend it retriggered.
-				 */
-				if ( undinic->hacks & UNDI_HACK_EB54 )
-					--last_trigger_count;
-			}
-			break;
-		case PXENV_UNDI_ISR_OUT_DONE:
-			/* Processing complete */
-			undinic->isr_processing = 0;
-			goto done;
-		default:
-			/* Should never happen.  VMWare does it routinely. */
-			DBGC ( undinic, "UNDINIC %p ISR returned invalid "
-			       "FuncFlag %04x\n", undinic, undi_isr.FuncFlag );
-			undinic->isr_processing = 0;
-			goto done;
-		}
-		undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_GET_NEXT;
-	}
-
- done:
-	if ( iobuf ) {
-		DBGC ( undinic, "UNDINIC %p returned incomplete packet "
-		       "(%zd of %zd)\n", undinic, iob_len ( iobuf ),
-		       ( iob_len ( iobuf ) + iob_tailroom ( iobuf ) ) );
-		netdev_rx_err ( netdev, iobuf, -EINVAL );
-	}
-}
-
-/**
- * Open NIC
- *
- * @v netdev		Net device
- * @ret rc		Return status code
- */
-static int undinet_open ( struct net_device *netdev ) {
-	struct undi_nic *undinic = netdev->priv;
-	struct s_PXENV_UNDI_SET_STATION_ADDRESS undi_set_address;
-	struct s_PXENV_UNDI_OPEN undi_open;
-	int rc;
-
-	/* Hook interrupt service routine and enable interrupt */
-	undinet_hook_isr ( undinic->irq );
-	enable_irq ( undinic->irq );
-	send_eoi ( undinic->irq );
-
-	/* Set station address.  Required for some PXE stacks; will
-	 * spuriously fail on others.  Ignore failures.  We only ever
-	 * use it to set the MAC address to the card's permanent value
-	 * anyway.
-	 */
-	memcpy ( undi_set_address.StationAddress, netdev->ll_addr,
-		 sizeof ( undi_set_address.StationAddress ) );
-	pxeparent_call ( undinet_entry, PXENV_UNDI_SET_STATION_ADDRESS,
-			 &undi_set_address, sizeof ( undi_set_address ) );
-
-	/* Open NIC.  We ask for promiscuous operation, since it's the
-	 * only way to ask for all multicast addresses.  On any
-	 * switched network, it shouldn't really make a difference to
-	 * performance.
-	 */
-	memset ( &undi_open, 0, sizeof ( undi_open ) );
-	undi_open.PktFilter = ( FLTR_DIRECTED | FLTR_BRDCST | FLTR_PRMSCS );
-	if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_OPEN,
-				     &undi_open, sizeof ( undi_open ) ) ) != 0 )
-		goto err;
-
-	DBGC ( undinic, "UNDINIC %p opened\n", undinic );
-	return 0;
-
- err:
-	undinet_close ( netdev );
-	return rc;
-}
-
-/**
- * Close NIC
- *
- * @v netdev		Net device
- */
-static void undinet_close ( struct net_device *netdev ) {
-	struct undi_nic *undinic = netdev->priv;
-	struct s_PXENV_UNDI_ISR undi_isr;
-	struct s_PXENV_UNDI_CLOSE undi_close;
-	int rc;
-
-	/* Ensure ISR has exited cleanly */
-	while ( undinic->isr_processing ) {
-		undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_GET_NEXT;
-		if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_ISR,
-					     &undi_isr,
-					     sizeof ( undi_isr ) ) ) != 0 )
-			break;
-		switch ( undi_isr.FuncFlag ) {
-		case PXENV_UNDI_ISR_OUT_TRANSMIT:
-		case PXENV_UNDI_ISR_OUT_RECEIVE:
-			/* Continue draining */
-			break;
-		default:
-			/* Stop processing */
-			undinic->isr_processing = 0;
-			break;
-		}
-	}
-
-	/* Close NIC */
-	pxeparent_call ( undinet_entry, PXENV_UNDI_CLOSE,
-			 &undi_close, sizeof ( undi_close ) );
-
-	/* Disable interrupt and unhook ISR */
-	disable_irq ( undinic->irq );
-	undinet_unhook_isr ( undinic->irq );
-
-	DBGC ( undinic, "UNDINIC %p closed\n", undinic );
-}
-
-/**
- * Enable/disable interrupts
- *
- * @v netdev		Net device
- * @v enable		Interrupts should be enabled
- */
-static void undinet_irq ( struct net_device *netdev, int enable ) {
-	struct undi_nic *undinic = netdev->priv;
-
-	/* Cannot support interrupts yet */
-	DBGC ( undinic, "UNDINIC %p cannot %s interrupts\n",
-	       undinic, ( enable ? "enable" : "disable" ) );
-}
-
-/** UNDI network device operations */
-static struct net_device_operations undinet_operations = {
-	.open		= undinet_open,
-	.close		= undinet_close,
-	.transmit	= undinet_transmit,
-	.poll		= undinet_poll,
-	.irq   		= undinet_irq,
-};
-
-/**
- * Probe UNDI device
- *
- * @v undi		UNDI device
- * @ret rc		Return status code
- */
-int undinet_probe ( struct undi_device *undi ) {
-	struct net_device *netdev;
-	struct undi_nic *undinic;
-	struct s_PXENV_START_UNDI start_undi;
-	struct s_PXENV_UNDI_STARTUP undi_startup;
-	struct s_PXENV_UNDI_INITIALIZE undi_initialize;
-	struct s_PXENV_UNDI_GET_INFORMATION undi_info;
-	struct s_PXENV_UNDI_GET_IFACE_INFO undi_iface;
-	struct s_PXENV_UNDI_SHUTDOWN undi_shutdown;
-	struct s_PXENV_UNDI_CLEANUP undi_cleanup;
-	struct s_PXENV_STOP_UNDI stop_undi;
-	int rc;
-
-	/* Allocate net device */
-	netdev = alloc_etherdev ( sizeof ( *undinic ) );
-	if ( ! netdev )
-		return -ENOMEM;
-	netdev_init ( netdev, &undinet_operations );
-	undinic = netdev->priv;
-	undi_set_drvdata ( undi, netdev );
-	netdev->dev = &undi->dev;
-	memset ( undinic, 0, sizeof ( *undinic ) );
-	undinet_entry = undi->entry;
-	DBGC ( undinic, "UNDINIC %p using UNDI %p\n", undinic, undi );
-
-	/* Hook in UNDI stack */
-	if ( ! ( undi->flags & UNDI_FL_STARTED ) ) {
-		memset ( &start_undi, 0, sizeof ( start_undi ) );
-		start_undi.AX = undi->pci_busdevfn;
-		start_undi.BX = undi->isapnp_csn;
-		start_undi.DX = undi->isapnp_read_port;
-		start_undi.ES = BIOS_SEG;
-		start_undi.DI = find_pnp_bios();
-		if ( ( rc = pxeparent_call ( undinet_entry, PXENV_START_UNDI,
-					     &start_undi,
-					     sizeof ( start_undi ) ) ) != 0 )
-			goto err_start_undi;
-	}
-	undi->flags |= UNDI_FL_STARTED;
-
-	/* Bring up UNDI stack */
-	if ( ! ( undi->flags & UNDI_FL_INITIALIZED ) ) {
-		memset ( &undi_startup, 0, sizeof ( undi_startup ) );
-		if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_STARTUP,
-					     &undi_startup,
-					     sizeof ( undi_startup ) ) ) != 0 )
-			goto err_undi_startup;
-		memset ( &undi_initialize, 0, sizeof ( undi_initialize ) );
-		if ( ( rc = pxeparent_call ( undinet_entry,
-					     PXENV_UNDI_INITIALIZE,
-					     &undi_initialize,
-					     sizeof ( undi_initialize ))) != 0 )
-			goto err_undi_initialize;
-	}
-	undi->flags |= UNDI_FL_INITIALIZED;
-
-	/* Get device information */
-	memset ( &undi_info, 0, sizeof ( undi_info ) );
-	if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_GET_INFORMATION,
-				     &undi_info, sizeof ( undi_info ) ) ) != 0 )
-		goto err_undi_get_information;
-	memcpy ( netdev->hw_addr, undi_info.PermNodeAddress, ETH_ALEN );
-	undinic->irq = undi_info.IntNumber;
-	if ( undinic->irq > IRQ_MAX ) {
-		DBGC ( undinic, "UNDINIC %p invalid IRQ %d\n",
-		       undinic, undinic->irq );
-		goto err_bad_irq;
-	}
-	DBGC ( undinic, "UNDINIC %p is %s on IRQ %d\n",
-	       undinic, eth_ntoa ( netdev->hw_addr ), undinic->irq );
-
-	/* Get interface information */
-	memset ( &undi_iface, 0, sizeof ( undi_iface ) );
-	if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_GET_IFACE_INFO,
-				     &undi_iface,
-				     sizeof ( undi_iface ) ) ) != 0 )
-		goto err_undi_get_iface_info;
-	DBGC ( undinic, "UNDINIC %p has type %s, speed %d, flags %08x\n",
-	       undinic, undi_iface.IfaceType, undi_iface.LinkSpeed,
-	       undi_iface.ServiceFlags );
-	if ( strncmp ( ( ( char * ) undi_iface.IfaceType ), "Etherboot",
-		       sizeof ( undi_iface.IfaceType ) ) == 0 ) {
-		DBGC ( undinic, "UNDINIC %p Etherboot 5.4 workaround enabled\n",
-		       undinic );
-		undinic->hacks |= UNDI_HACK_EB54;
-	}
-
-	/* Mark as link up; we don't handle link state */
-	netdev_link_up ( netdev );
-
-	/* Register network device */
-	if ( ( rc = register_netdev ( netdev ) ) != 0 )
-		goto err_register;
-
-	DBGC ( undinic, "UNDINIC %p added\n", undinic );
-	return 0;
-
- err_register:
- err_undi_get_iface_info:
- err_bad_irq:
- err_undi_get_information:
- err_undi_initialize:
-	/* Shut down UNDI stack */
-	memset ( &undi_shutdown, 0, sizeof ( undi_shutdown ) );
-	pxeparent_call ( undinet_entry, PXENV_UNDI_SHUTDOWN, &undi_shutdown,
-			 sizeof ( undi_shutdown ) );
-	memset ( &undi_cleanup, 0, sizeof ( undi_cleanup ) );
-	pxeparent_call ( undinet_entry, PXENV_UNDI_CLEANUP, &undi_cleanup,
-			 sizeof ( undi_cleanup ) );
-	undi->flags &= ~UNDI_FL_INITIALIZED;
- err_undi_startup:
-	/* Unhook UNDI stack */
-	memset ( &stop_undi, 0, sizeof ( stop_undi ) );
-	pxeparent_call ( undinet_entry, PXENV_STOP_UNDI, &stop_undi,
-			 sizeof ( stop_undi ) );
-	undi->flags &= ~UNDI_FL_STARTED;
- err_start_undi:
-	netdev_nullify ( netdev );
-	netdev_put ( netdev );
-	undi_set_drvdata ( undi, NULL );
-	return rc;
-}
-
-/**
- * Remove UNDI device
- *
- * @v undi		UNDI device
- */
-void undinet_remove ( struct undi_device *undi ) {
-	struct net_device *netdev = undi_get_drvdata ( undi );
-	struct undi_nic *undinic = netdev->priv;
-	struct s_PXENV_UNDI_SHUTDOWN undi_shutdown;
-	struct s_PXENV_UNDI_CLEANUP undi_cleanup;
-	struct s_PXENV_STOP_UNDI stop_undi;
-
-	/* Unregister net device */
-	unregister_netdev ( netdev );
-
-	/* If we are preparing for an OS boot, or if we cannot exit
-	 * via the PXE stack, then shut down the PXE stack.
-	 */
-	if ( ! ( undi->flags & UNDI_FL_KEEP_ALL ) ) {
-
-		/* Shut down UNDI stack */
-		memset ( &undi_shutdown, 0, sizeof ( undi_shutdown ) );
-		pxeparent_call ( undinet_entry, PXENV_UNDI_SHUTDOWN,
-				 &undi_shutdown, sizeof ( undi_shutdown ) );
-		memset ( &undi_cleanup, 0, sizeof ( undi_cleanup ) );
-		pxeparent_call ( undinet_entry, PXENV_UNDI_CLEANUP,
-				 &undi_cleanup, sizeof ( undi_cleanup ) );
-		undi->flags &= ~UNDI_FL_INITIALIZED;
-
-		/* Unhook UNDI stack */
-		memset ( &stop_undi, 0, sizeof ( stop_undi ) );
-		pxeparent_call ( undinet_entry, PXENV_STOP_UNDI, &stop_undi,
-				 sizeof ( stop_undi ) );
-		undi->flags &= ~UNDI_FL_STARTED;
-	}
-
-	/* Clear entry point */
-	memset ( &undinet_entry, 0, sizeof ( undinet_entry ) );
-
-	/* Free network device */
-	netdev_nullify ( netdev );
-	netdev_put ( netdev );
-
-	DBGC ( undinic, "UNDINIC %p removed\n", undinic );
-}