Renamed undi.c to undinet.c. (undi.c will become the UNDI PCI driver)

1 files changed, 0 insertions, 660 deletions

diff --git a/src/arch/i386/drivers/net/undi.c b/src/arch/i386/drivers/net/undi.c
deleted file mode 100644
index 030a8b65..00000000
--- a/src/arch/i386/drivers/net/undi.c
+++ /dev/null
@@ -1,660 +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.
- */
-
-#include <string.h>
-#include <pxe.h>
-#include <realmode.h>
-#include <pic8259.h>
-#include <biosint.h>
-#include <pnpbios.h>
-#include <gpxe/pkbuff.h>
-#include <gpxe/netdevice.h>
-#include <gpxe/if_ether.h>
-#include <gpxe/ethernet.h>
-
-/** @file
- *
- * UNDI network device driver
- *
- */
-
-/** An UNDI NIC */
-struct undi_nic {
-	/** Entry point */
-	SEGOFF16_t entry;
-	/** Assigned IRQ number */
-	unsigned int irq;
-};
-
-static void undi_close ( struct net_device *netdev );
-
-/*****************************************************************************
- *
- * UNDI API call
- *
- *****************************************************************************
- */
-
-/**
- * Name UNDI API call
- *
- * @v function		API call number
- * @ret name		API call name
- */
-static inline __attribute__ (( always_inline )) const char *
-undi_function_name ( unsigned int function ) {
-	switch ( function ) {
-	case PXENV_UNLOAD_STACK:
-		return "PXENV_UNLOAD_STACK";
-	case PXENV_GET_CACHED_INFO:
-		return "PXENV_GET_CACHED_INFO";
-	case PXENV_RESTART_TFTP:
-		return "PXENV_RESTART_TFTP";
-	case PXENV_START_UNDI:
-		return "PXENV_START_UNDI";
-	case PXENV_STOP_UNDI:
-		return "PXENV_STOP_UNDI";
-	case PXENV_START_BASE:
-		return "PXENV_START_BASE";
-	case PXENV_STOP_BASE:
-		return "PXENV_STOP_BASE";
-	case PXENV_TFTP_OPEN:
-		return "PXENV_TFTP_OPEN";
-	case PXENV_TFTP_CLOSE:
-		return "PXENV_TFTP_CLOSE";
-	case PXENV_TFTP_READ:
-		return "PXENV_TFTP_READ";
-	case PXENV_TFTP_READ_FILE:
-		return "PXENV_TFTP_READ_FILE";
-	case PXENV_TFTP_GET_FSIZE:
-		return "PXENV_TFTP_GET_FSIZE";
-	case PXENV_UDP_OPEN:
-		return "PXENV_UDP_OPEN";
-	case PXENV_UDP_CLOSE:
-		return "PXENV_UDP_CLOSE";
-	case PXENV_UDP_WRITE:
-		return "PXENV_UDP_WRITE";
-	case PXENV_UDP_READ:
-		return "PXENV_UDP_READ";
-	case PXENV_UNDI_STARTUP:
-		return "PXENV_UNDI_STARTUP";
-	case PXENV_UNDI_CLEANUP:
-		return "PXENV_UNDI_CLEANUP";
-	case PXENV_UNDI_INITIALIZE:
-		return "PXENV_UNDI_INITIALIZE";
-	case PXENV_UNDI_RESET_ADAPTER:
-		return "PXENV_UNDI_RESET_ADAPTER";
-	case PXENV_UNDI_SHUTDOWN:
-		return "PXENV_UNDI_SHUTDOWN";
-	case PXENV_UNDI_OPEN:
-		return "PXENV_UNDI_OPEN";
-	case PXENV_UNDI_CLOSE:
-		return "PXENV_UNDI_CLOSE";
-	case PXENV_UNDI_TRANSMIT:
-		return "PXENV_UNDI_TRANSMIT";
-	case PXENV_UNDI_SET_MCAST_ADDRESS:
-		return "PXENV_UNDI_SET_MCAST_ADDRESS";
-	case PXENV_UNDI_SET_STATION_ADDRESS:
-		return "PXENV_UNDI_SET_STATION_ADDRESS";
-	case PXENV_UNDI_SET_PACKET_FILTER:
-		return "PXENV_UNDI_SET_PACKET_FILTER";
-	case PXENV_UNDI_GET_INFORMATION:
-		return "PXENV_UNDI_GET_INFORMATION";
-	case PXENV_UNDI_GET_STATISTICS:
-		return "PXENV_UNDI_GET_STATISTICS";
-	case PXENV_UNDI_CLEAR_STATISTICS:
-		return "PXENV_UNDI_CLEAR_STATISTICS";
-	case PXENV_UNDI_INITIATE_DIAGS:
-		return "PXENV_UNDI_INITIATE_DIAGS";
-	case PXENV_UNDI_FORCE_INTERRUPT:
-		return "PXENV_UNDI_FORCE_INTERRUPT";
-	case PXENV_UNDI_GET_MCAST_ADDRESS:
-		return "PXENV_UNDI_GET_MCAST_ADDRESS";
-	case PXENV_UNDI_GET_NIC_TYPE:
-		return "PXENV_UNDI_GET_NIC_TYPE";
-	case PXENV_UNDI_GET_IFACE_INFO:
-		return "PXENV_UNDI_GET_IFACE_INFO";
-	/*
-	 * Duplicate case value; this is a bug in the PXE specification.
-	 *
-	 *	case PXENV_UNDI_GET_STATE:
-	 *		return "PXENV_UNDI_GET_STATE";
-	 */
-	case PXENV_UNDI_ISR:
-		return "PXENV_UNDI_ISR";
-	default:
-		return "UNKNOWN API CALL";
-	}
-}
-
-/**
- * UNDI parameter block
- *
- * Used as the paramter block for all UNDI API calls.  Resides in base
- * memory.
- */
-static union u_PXENV_ANY __data16 ( undi_params );
-#define undi_params __use_data16 ( undi_params )
-
-/** UNDI entry point
- *
- * Used as the indirection vector for all UNDI API calls.  Resides in
- * base memory.
- */
-static SEGOFF16_t __data16 ( undi_entry_point );
-#define undi_entry_point __use_data16 ( undi_entry_point )
-
-/**
- * Issue UNDI API call
- *
- * @v undi		UNDI NIC
- * @v function		API call number
- * @v params		UNDI parameter block
- * @v params_len	Length of UNDI parameter block
- * @ret rc		Return status code
- */
-static int undi_call ( struct undi_nic *undi, unsigned int function,
-		       void *params, size_t params_len ) {
-	union u_PXENV_ANY *pxenv_any = params;
-	PXENV_EXIT_t exit;
-	int discard_b, discard_D;
-	int rc;
-
-	/* Copy parameter block and entry point */
-	assert ( params_len <= sizeof ( undi_params ) );
-	memcpy ( &undi_params, params, params_len );
-	undi_entry_point = undi->entry;
-
-	/* Call real-mode entry point.  This calling convention will
-	 * work with both the !PXE and the PXENV+ entry points.
-	 */
-	__asm__ __volatile__ ( REAL_CODE ( "pushw %%es\n\t"
-					   "pushw %%di\n\t"
-					   "pushw %%bx\n\t"
-					   "lcall *%c3\n\t"
-					   "addw $6, %%sp\n\t" )
-			       : "=a" ( exit ), "=b" ( discard_b ),
-			         "=D" ( discard_D )
-			       : "p" ( & __from_data16 ( undi_entry_point ) ),
-			         "b" ( function ),
-			         "D" ( & __from_data16 ( undi_params ) )
-			       : "ecx", "edx", "esi", "ebp" );
-
-	/* UNDI API calls may rudely change the status of A20 and not
-	 * bother to restore it afterwards.  Intel is known to be
-	 * guilty of this.
-	 *
-	 * Note that we will return to this point even if A20 gets
-	 * screwed up by the UNDI driver, because Etherboot always
-	 * resides in an even megabyte of RAM.
-	 */	
-	gateA20_set();
-
-	/* Copy parameter block back */
-	memcpy ( params, &undi_params, params_len );
-
-	/* Determine return status code based on PXENV_EXIT and
-	 * PXENV_STATUS
-	 */
-	if ( exit == PXENV_EXIT_SUCCESS ) {
-		rc = 0;
-	} else {
-		rc = -pxenv_any->Status;
-		/* Paranoia; don't return success for the combination
-		 * of PXENV_EXIT_FAILURE but PXENV_STATUS_SUCCESS
-		 */
-		if ( rc == 0 )
-			rc = -EIO;
-	}
-
-	if ( rc != 0 ) {
-		DBGC ( undi, "UNDI %p %s failed: %s\n", undi,
-		       undi_function_name ( function ), strerror ( rc ) );
-	}
-	return rc;
-}
-
-/*****************************************************************************
- *
- * UNDI interrupt service routine
- *
- *****************************************************************************
- */
-
-/**
- * UNDI interrupt service routine
- *
- * The UNDI ISR simply increments a counter (@c trigger_count) and
- * exits.
- */
-extern void undi_isr ( void );
-
-/** Dummy chain vector */
-static struct segoff prev_handler[ IRQ_MAX + 1 ];
-
-/** IRQ trigger count */
-static volatile uint8_t __text16 ( trigger_count ) = 0;
-#define trigger_count __use_text16 ( trigger_count )
-
-/**
- * Hook UNDI interrupt service routine
- *
- * @v irq		IRQ number
- *
- * The UNDI ISR specifically does @b not chain to the previous
- * interrupt handler.  BIOSes seem to install somewhat perverse
- * default interrupt handlers; some do nothing other than an iret (and
- * so will cause a screaming interrupt if there really is another
- * interrupting device) and some disable the interrupt at the PIC (and
- * so will bring our own interrupts to a shuddering halt).
- */
-static void undi_hook_isr ( unsigned int irq ) {
-
-	assert ( irq <= IRQ_MAX );
-
-	__asm__ __volatile__ ( TEXT16_CODE ( "\nundi_isr:\n\t"
-					     "incb %%cs:%c0\n\t"
-					     "iret\n\t" )
-			       : : "p" ( & __from_text16 ( trigger_count ) ) );
-
-	hook_bios_interrupt ( IRQ_INT ( irq ), ( ( unsigned int ) undi_isr ),
-			      &prev_handler[irq] );
-
-}
-
-/**
- * Unhook UNDI interrupt service routine
- *
- * @v irq		IRQ number
- */
-static void undi_unhook_isr ( unsigned int irq ) {
-
-	assert ( irq <= IRQ_MAX );
-
-	unhook_bios_interrupt ( IRQ_INT ( irq ), ( ( unsigned int ) undi_isr ),
-				&prev_handler[irq] );
-}
-
-/**
- * Test to see if UNDI ISR has been triggered
- *
- * @ret triggered	ISR has been triggered since last check
- */
-static int undi_isr_triggered ( void ) {
-	static unsigned int last_trigger_count = 0;
-	unsigned int this_trigger_count;
-
-	/* Read trigger_count.  Do this only once; it is volatile */
-	this_trigger_count = 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
- *
- *****************************************************************************
- */
-
-/** Maximum length of a packet transmitted via the UNDI API */
-#define UNDI_PKB_LEN 1514
-
-/** A packet transmitted via the UNDI API */
-struct undi_packet {
-	uint8_t bytes[UNDI_PKB_LEN];
-};
-
-/** UNDI packet buffer */
-static struct undi_packet __data16 ( undi_pkb );
-#define undi_pkb __use_data16 ( undi_pkb )
-
-/** UNDI transmit buffer descriptor */
-static struct s_PXENV_UNDI_TBD __data16 ( undi_tbd );
-#define undi_tbd __use_data16 ( undi_tbd )
-
-/**
- * Transmit packet
- *
- * @v netdev		Network device
- * @v pkb		Packet buffer
- * @ret rc		Return status code
- */
-static int undi_transmit ( struct net_device *netdev, struct pk_buff *pkb ) {
-	struct undi_nic *undi = netdev->priv;
-	struct s_PXENV_UNDI_TRANSMIT undi_transmit;
-	size_t len = pkb_len ( pkb );
-	int rc;
-
-	/* Copy packet to UNDI packet buffer */
-	if ( len > sizeof ( undi_pkb ) )
-		len = sizeof ( undi_pkb );
-	memcpy ( &undi_pkb, pkb->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
-		= ( ( unsigned ) & __from_data16 ( undi_tbd ) );
-	undi_transmit.TBD.segment = rm_ds;
-	undi_transmit.TBD.offset
-		= ( ( unsigned ) & __from_data16 ( undi_tbd ) );
-
-	/* Create PXENV_UNDI_TBD data structure */
-	undi_tbd.ImmedLength = len;
-	undi_tbd.Xmit.segment = rm_ds;
-	undi_tbd.Xmit.offset 
-		= ( ( unsigned ) & __from_data16 ( undi_pkb ) );
-
-	/* Issue PXE API call */
-	rc = undi_call ( undi, PXENV_UNDI_TRANSMIT, &undi_transmit,
-			 sizeof ( undi_transmit ) );
-
-	/* Free packet buffer and return */
-	free_pkb ( pkb );
-	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 undi_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 undi_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.
- */
-static void undi_poll ( struct net_device *netdev ) {
-	struct undi_nic *undi = netdev->priv;
-	struct s_PXENV_UNDI_ISR undi_isr;
-	struct pk_buff *pkb = NULL;
-	size_t len;
-	size_t frag_len;
-	int rc;
-
-	/* Do nothing unless ISR has been triggered */
-	if ( ! undi_isr_triggered() )
-		return;
-
-	/* See if this was our interrupt */
-	memset ( &undi_isr, 0, sizeof ( undi_isr ) );
-	undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_START;
-	if ( ( rc = undi_call ( undi, PXENV_UNDI_ISR, &undi_isr,
-				sizeof ( undi_isr ) ) ) != 0 )
-		return;
-	if ( undi_isr.FuncFlag != PXENV_UNDI_ISR_OUT_OURS )
-		return;
-
-	/* Send EOI */
-	send_eoi ( undi->irq );
-
-	/* Run through the ISR loop */
-	undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_PROCESS;
-	while ( 1 ) {
-		if ( ( rc = undi_call ( undi, 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 ( ! pkb )
-				pkb = alloc_pkb ( len );
-			if ( ! pkb ) {
-				DBGC ( undi, "UNDI %p could not allocate %zd "
-				       "bytes for receive buffer\n",
-				       undi, len );
-				break;
-			}
-			if ( frag_len > pkb_available ( pkb ) ) {
-				DBGC ( undi, "UNDI %p fragment too large\n",
-				       undi );
-				frag_len = pkb_available ( pkb );
-			}
-			copy_from_real ( pkb_put ( pkb, frag_len ),
-					 undi_isr.Frame.segment,
-					 undi_isr.Frame.offset, frag_len );
-			if ( pkb_len ( pkb ) == len ) {
-				netdev_rx ( netdev, pkb );
-				pkb = NULL;
-			}
-			break;
-		case PXENV_UNDI_ISR_OUT_DONE:
-			/* Processing complete */
-			goto done;
-		default:
-			/* Should never happen */
-			DBGC ( undi, "UNDI %p ISR returned invalid FuncFlag "
-			       "%04x\n", undi, undi_isr.FuncFlag );
-			goto done;
-		}
-		undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_GET_NEXT;
-	}
-
- done:
-	if ( pkb ) {
-		DBGC ( undi, "UNDI %p returned incomplete packet\n", undi );
-		netdev_rx ( netdev, pkb );
-	}
-}
-
-/**
- * Open NIC
- *
- * @v netdev		Net device
- * @ret rc		Return status code
- */
-static int undi_open ( struct net_device *netdev ) {
-	struct undi_nic *undi = netdev->priv;
-	struct s_PXENV_UNDI_SET_STATION_ADDRESS set_address;
-	struct s_PXENV_UNDI_OPEN open;
-	int rc;
-
-	/* Hook interrupt service routine and enable interrupt */
-	undi_hook_isr ( undi->irq );
-	enable_irq ( undi->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 ( set_address.StationAddress, netdev->ll_addr,
-		 sizeof ( set_address.StationAddress ) );
-	undi_call ( undi, PXENV_UNDI_SET_STATION_ADDRESS,
-		    &set_address, sizeof ( set_address ) );
-
-	/* Open NIC */
-	memset ( &open, 0, sizeof ( open ) );
-	open.PktFilter = ( FLTR_DIRECTED | FLTR_BRDCST );
-	if ( ( rc = undi_call ( undi, PXENV_UNDI_OPEN, &open,
-				sizeof ( open ) ) ) != 0 )
-		goto err;
-
-	return 0;
-
- err:
-	undi_close ( netdev );
-	return rc;
-}
-
-/**
- * Close NIC
- *
- * @v netdev		Net device
- */
-static void undi_close ( struct net_device *netdev ) {
-	struct undi_nic *undi = netdev->priv;
-	struct s_PXENV_UNDI_CLOSE close;
-
-	/* Close NIC */
-	undi_call ( undi, PXENV_UNDI_CLOSE, &close, sizeof ( close ) );
-
-	/* Disable interrupt and unhook ISR */
-	disable_irq ( undi->irq );
-	undi_unhook_isr ( undi->irq );
-}
-
-/**
- * Probe PXE device
- *
- * @v pxe		PXE device
- * @ret rc		Return status code
- */
-int undi_probe ( struct pxe_device *pxe ) {
-	struct net_device *netdev;
-	struct undi_nic *undi;
-	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_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 ( *undi ) );
-	if ( ! netdev )
-		return -ENOMEM;
-	undi = netdev->priv;
-	pxe_set_drvdata ( pxe, netdev );
-	memset ( undi, 0, sizeof ( *undi ) );
-	undi->entry = pxe->entry;
-
-	/* Hook in UNDI stack */
-	memset ( &start_undi, 0, sizeof ( start_undi ) );
-	start_undi.AX = pxe->pci_busdevfn;
-	start_undi.BX = pxe->isapnp_csn;
-	start_undi.DX = pxe->isapnp_read_port;
-	start_undi.ES = BIOS_SEG;
-	start_undi.DI = find_pnp_bios();
-	if ( ( rc = undi_call ( undi, PXENV_START_UNDI, &start_undi,
-				sizeof ( start_undi ) ) ) != 0 )
-		goto err_start_undi;
-
-	/* Bring up UNDI stack */
-	memset ( &undi_startup, 0, sizeof ( undi_startup ) );
-	if ( ( rc = undi_call ( undi, PXENV_UNDI_STARTUP, &undi_startup,
-				sizeof ( undi_startup ) ) ) != 0 )
-		goto err_undi_startup;
-	memset ( &undi_initialize, 0, sizeof ( undi_initialize ) );
-	if ( ( rc = undi_call ( undi, PXENV_UNDI_INITIALIZE, &undi_initialize,
-				sizeof ( undi_initialize ) ) ) != 0 )
-		goto err_undi_initialize;
-
-	/* Get device information */
-	memset ( &undi_info, 0, sizeof ( undi_info ) );
-	if ( ( rc = undi_call ( undi, PXENV_UNDI_GET_INFORMATION, &undi_info,
-				sizeof ( undi_info ) ) ) != 0 )
-		goto err_undi_get_information;
-	memcpy ( netdev->ll_addr, undi_info.PermNodeAddress, ETH_ALEN );
-	undi->irq = undi_info.IntNumber;
-	if ( undi->irq > IRQ_MAX ) {
-		DBGC ( undi, "UNDI %p invalid IRQ %d\n", undi, undi->irq );
-		goto err_bad_irq;
-	}
-	DBGC ( undi, "UNDI %p (%s) using IRQ %d\n",
-	       undi, eth_ntoa ( netdev->ll_addr ), undi->irq );
-
-	/* Point to NIC specific routines */
-	netdev->open	 = undi_open;
-	netdev->close	 = undi_close;
-	netdev->transmit = undi_transmit;
-	netdev->poll	 = undi_poll;
-
-	/* Register network device */
-	if ( ( rc = register_netdev ( netdev ) ) != 0 )
-		goto err_register;
-
-	return 0;
-
- err_register:
- err_bad_irq:
- err_undi_get_information:
- err_undi_initialize:
-	/* Shut down UNDI stack */
-	memset ( &undi_shutdown, 0, sizeof ( undi_shutdown ) );
-	undi_call ( undi, PXENV_UNDI_SHUTDOWN, &undi_shutdown,
-		    sizeof ( undi_shutdown ) );
-	memset ( &undi_cleanup, 0, sizeof ( undi_cleanup ) );
-	undi_call ( undi, PXENV_UNDI_CLEANUP, &undi_cleanup,
-		    sizeof ( undi_cleanup ) );
- err_undi_startup:
-	/* Unhook UNDI stack */
-	memset ( &stop_undi, 0, sizeof ( stop_undi ) );
-	undi_call ( undi, PXENV_STOP_UNDI, &stop_undi, sizeof ( stop_undi ) );
- err_start_undi:
-	free_netdev ( netdev );
-	pxe_set_drvdata ( pxe, NULL );
-	return rc;
-}
-
-/**
- * Remove PXE device
- *
- * @v pxe		PXE device
- */
-void undi_remove ( struct pxe_device *pxe ) {
-	struct net_device *netdev = pxe_get_drvdata ( pxe );
-	struct undi_nic *undi = 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 );
-
-	/* Shut down UNDI stack */
-	memset ( &undi_shutdown, 0, sizeof ( undi_shutdown ) );
-	undi_call ( undi, PXENV_UNDI_SHUTDOWN, &undi_shutdown,
-		    sizeof ( undi_shutdown ) );
-	memset ( &undi_cleanup, 0, sizeof ( undi_cleanup ) );
-	undi_call ( undi, PXENV_UNDI_CLEANUP, &undi_cleanup,
-		    sizeof ( undi_cleanup ) );
-
-	/* Unhook UNDI stack */
-	memset ( &stop_undi, 0, sizeof ( stop_undi ) );
-	undi_call ( undi, PXENV_STOP_UNDI, &stop_undi, sizeof ( stop_undi ) );
-
-	/* Free network device */
-	free_netdev ( netdev );
-}