Use "struct undi_device" instead of "struct pxe_device", and use the

function prefix "undinet_" and the variable name "undinic" in undinet.c,
so that we can reserve the variable name "undi" for a struct undi_device.

The idea is that we preserve the Etherboot 5.4 convention that the "UNDI"
code refers to our using an underlying UNDI stack, while the "PXE" code
refers to our providing a PXE API.

src/arch/i386/drivers/net/undinet.c

 #include <gpxe/netdevice.h>
 #include <gpxe/if_ether.h>
 #include <gpxe/ethernet.h>
+#include <undi.h>
+#include <undinet.h>
+
 
 /** @file
  *
 	unsigned int irq;
 };
 
-static void undi_close ( struct net_device *netdev );
+static void undinet_close ( struct net_device *netdev );
 
 /*****************************************************************************
  *
  * @ret name		API call name
  */
 static inline __attribute__ (( always_inline )) const char *
-undi_function_name ( unsigned int function ) {
+undinet_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:
  * 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 )
+static union u_PXENV_ANY __data16 ( undinet_params );
+#define undinet_params __use_data16 ( undinet_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 )
+static SEGOFF16_t __data16 ( undinet_entry_point );
+#define undinet_entry_point __use_data16 ( undinet_entry_point )
 
 /**
  * Issue UNDI API call
  *
- * @v undi		UNDI NIC
+ * @v undinic		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 ) {
+static int undinet_call ( struct undi_nic *undinic, 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;
+	assert ( params_len <= sizeof ( undinet_params ) );
+	memcpy ( &undinet_params, params, params_len );
+	undinet_entry_point = undinic->entry;
 
 	/* Call real-mode entry point.  This calling convention will
 	 * work with both the !PXE and the PXENV+ entry points.
 					   "addw $6, %%sp\n\t" )
 			       : "=a" ( exit ), "=b" ( discard_b ),
 			         "=D" ( discard_D )
-			       : "p" ( & __from_data16 ( undi_entry_point ) ),
+			       : "p" ( &__from_data16 ( undinet_entry_point )),
 			         "b" ( function ),
-			         "D" ( & __from_data16 ( undi_params ) )
+			         "D" ( &__from_data16 ( undinet_params ) )
 			       : "ecx", "edx", "esi", "ebp" );
 
 	/* UNDI API calls may rudely change the status of A20 and not
 	gateA20_set();
 
 	/* Copy parameter block back */
-	memcpy ( params, &undi_params, params_len );
+	memcpy ( params, &undinet_params, params_len );
 
 	/* Determine return status code based on PXENV_EXIT and
 	 * PXENV_STATUS
 	}
 
 	if ( rc != 0 ) {
-		DBGC ( undi, "UNDI %p %s failed: %s\n", undi,
-		       undi_function_name ( function ), strerror ( rc ) );
+		DBGC ( undinic, "UNDINIC %p %s failed: %s\n", undinic,
+		       undinet_function_name ( function ), strerror ( rc ) );
 	}
 	return rc;
 }
  * The UNDI ISR simply increments a counter (@c trigger_count) and
  * exits.
  */
-extern void undi_isr ( void );
+extern void undinet_isr ( void );
 
 /** Dummy chain vector */
 static struct segoff prev_handler[ IRQ_MAX + 1 ];
  * 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 ) {
+static void undinet_hook_isr ( unsigned int irq ) {
 
 	assert ( irq <= IRQ_MAX );
 
-	__asm__ __volatile__ ( TEXT16_CODE ( "\nundi_isr:\n\t"
+	__asm__ __volatile__ ( TEXT16_CODE ( "\nundinet_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 ),
+	hook_bios_interrupt ( IRQ_INT ( irq ),
+			      ( ( unsigned int ) undinet_isr ),
 			      &prev_handler[irq] );
 
 }
  *
  * @v irq		IRQ number
  */
-static void undi_unhook_isr ( unsigned int irq ) {
+static void undinet_unhook_isr ( unsigned int irq ) {
 
 	assert ( irq <= IRQ_MAX );
 
-	unhook_bios_interrupt ( IRQ_INT ( irq ), ( ( unsigned int ) undi_isr ),
+	unhook_bios_interrupt ( IRQ_INT ( irq ),
+				( ( unsigned int ) undinet_isr ),
 				&prev_handler[irq] );
 }
 
  *
  * @ret triggered	ISR has been triggered since last check
  */
-static int undi_isr_triggered ( void ) {
+static int undinet_isr_triggered ( void ) {
 	static unsigned int last_trigger_count = 0;
 	unsigned int this_trigger_count;
 
 };
 
 /** UNDI packet buffer */
-static struct undi_packet __data16 ( undi_pkb );
-#define undi_pkb __use_data16 ( undi_pkb )
+static struct undi_packet __data16 ( undinet_pkb );
+#define undinet_pkb __use_data16 ( undinet_pkb )
 
 /** UNDI transmit buffer descriptor */
-static struct s_PXENV_UNDI_TBD __data16 ( undi_tbd );
-#define undi_tbd __use_data16 ( undi_tbd )
+static struct s_PXENV_UNDI_TBD __data16 ( undinet_tbd );
+#define undinet_tbd __use_data16 ( undinet_tbd )
 
 /**
  * Transmit packet
  * @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;
+static int undinet_transmit ( struct net_device *netdev,
+			      struct pk_buff *pkb ) {
+	struct undi_nic *undinic = 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 );
+	if ( len > sizeof ( undinet_pkb ) )
+		len = sizeof ( undinet_pkb );
+	memcpy ( &undinet_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 ) );
+		= ( ( unsigned ) & __from_data16 ( undinet_tbd ) );
 	undi_transmit.TBD.segment = rm_ds;
 	undi_transmit.TBD.offset
-		= ( ( unsigned ) & __from_data16 ( undi_tbd ) );
+		= ( ( unsigned ) & __from_data16 ( undinet_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 ) );
+	undinet_tbd.ImmedLength = len;
+	undinet_tbd.Xmit.segment = rm_ds;
+	undinet_tbd.Xmit.offset 
+		= ( ( unsigned ) & __from_data16 ( undinet_pkb ) );
 
 	/* Issue PXE API call */
-	rc = undi_call ( undi, PXENV_UNDI_TRANSMIT, &undi_transmit,
-			 sizeof ( undi_transmit ) );
+	rc = undinet_call ( undinic, PXENV_UNDI_TRANSMIT, &undi_transmit,
+			    sizeof ( undi_transmit ) );
 
 	/* Free packet buffer and return */
 	free_pkb ( pkb );
  *
  * 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
+ * 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 undi_poll()
- * being called even if we did implement a full ISR.  So it should
- * work.  Ha!
+ * 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.
  */
-static void undi_poll ( struct net_device *netdev ) {
-	struct undi_nic *undi = netdev->priv;
+static void undinet_poll ( struct net_device *netdev ) {
+	struct undi_nic *undinic = netdev->priv;
 	struct s_PXENV_UNDI_ISR undi_isr;
 	struct pk_buff *pkb = NULL;
 	size_t len;
 	int rc;
 
 	/* Do nothing unless ISR has been triggered */
-	if ( ! undi_isr_triggered() )
+	if ( ! undinet_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 )
+	if ( ( rc = undinet_call ( undinic, 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 );
+	send_eoi ( undinic->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 )
+		if ( ( rc = undinet_call ( undinic, PXENV_UNDI_ISR, &undi_isr,
+					   sizeof ( undi_isr ) ) ) != 0 )
 			break;
 		switch ( undi_isr.FuncFlag ) {
 		case PXENV_UNDI_ISR_OUT_TRANSMIT:
 			if ( ! pkb )
 				pkb = alloc_pkb ( len );
 			if ( ! pkb ) {
-				DBGC ( undi, "UNDI %p could not allocate %zd "
-				       "bytes for receive buffer\n",
-				       undi, len );
+				DBGC ( undinic, "UNDINIC %p could not "
+				       "allocate %zd bytes for RX buffer\n",
+				       undinic, len );
 				break;
 			}
 			if ( frag_len > pkb_available ( pkb ) ) {
-				DBGC ( undi, "UNDI %p fragment too large\n",
-				       undi );
+				DBGC ( undinic, "UNDINIC %p fragment too "
+				       "large\n", undinic );
 				frag_len = pkb_available ( pkb );
 			}
 			copy_from_real ( pkb_put ( pkb, frag_len ),
 			goto done;
 		default:
 			/* Should never happen */
-			DBGC ( undi, "UNDI %p ISR returned invalid FuncFlag "
-			       "%04x\n", undi, undi_isr.FuncFlag );
+			DBGC ( undinic, "UNDINIC %p ISR returned invalid "
+			       "FuncFlag %04x\n", undinic, 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 );
+		DBGC ( undinic, "UNDINIC %p returned incomplete packet\n",
+		       undinic );
 		netdev_rx ( netdev, pkb );
 	}
 }
  * @v netdev		Net device
  * @ret rc		Return status code
  */
-static int undi_open ( struct net_device *netdev ) {
-	struct undi_nic *undi = netdev->priv;
+static int undinet_open ( struct net_device *netdev ) {
+	struct undi_nic *undinic = 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 );
+	undinet_hook_isr ( undinic->irq );
+	enable_irq ( undinic->irq );
 
 	/* Set station address.  Required for some PXE stacks; will
 	 * spuriously fail on others.  Ignore failures.  We only ever
 	 */
 	memcpy ( set_address.StationAddress, netdev->ll_addr,
 		 sizeof ( set_address.StationAddress ) );
-	undi_call ( undi, PXENV_UNDI_SET_STATION_ADDRESS,
-		    &set_address, sizeof ( set_address ) );
+	undinet_call ( undinic, 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 )
+	if ( ( rc = undinet_call ( undinic, PXENV_UNDI_OPEN, &open,
+				   sizeof ( open ) ) ) != 0 )
 		goto err;
 
 	return 0;
 
  err:
-	undi_close ( netdev );
+	undinet_close ( netdev );
 	return rc;
 }
 
  *
  * @v netdev		Net device
  */
-static void undi_close ( struct net_device *netdev ) {
-	struct undi_nic *undi = netdev->priv;
+static void undinet_close ( struct net_device *netdev ) {
+	struct undi_nic *undinic = netdev->priv;
 	struct s_PXENV_UNDI_CLOSE close;
 
 	/* Close NIC */
-	undi_call ( undi, PXENV_UNDI_CLOSE, &close, sizeof ( close ) );
+	undinet_call ( undinic, PXENV_UNDI_CLOSE, &close, sizeof ( close ) );
 
 	/* Disable interrupt and unhook ISR */
-	disable_irq ( undi->irq );
-	undi_unhook_isr ( undi->irq );
+	disable_irq ( undinic->irq );
+	undinet_unhook_isr ( undinic->irq );
 }
 
 /**
- * Probe PXE device
+ * Probe UNDI device
  *
- * @v pxe		PXE device
+ * @v undi		UNDI device
  * @ret rc		Return status code
  */
-int undi_probe ( struct pxe_device *pxe ) {
+int undinet_probe ( struct undi_device *undi ) {
 	struct net_device *netdev;
-	struct undi_nic *undi;
+	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;
 	int rc;
 
 	/* Allocate net device */
-	netdev = alloc_etherdev ( sizeof ( *undi ) );
+	netdev = alloc_etherdev ( sizeof ( *undinic ) );
 	if ( ! netdev )
 		return -ENOMEM;
-	undi = netdev->priv;
-	pxe_set_drvdata ( pxe, netdev );
-	memset ( undi, 0, sizeof ( *undi ) );
-	undi->entry = pxe->entry;
+	undinic = netdev->priv;
+	undi_set_drvdata ( undi, netdev );
+	memset ( undinic, 0, sizeof ( *undinic ) );
+	undinic->entry = undi->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.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 = undi_call ( undi, PXENV_START_UNDI, &start_undi,
-				sizeof ( start_undi ) ) ) != 0 )
+	if ( ( rc = undinet_call ( undinic, 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 )
+	if ( ( rc = undinet_call ( undinic, 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 )
+	if ( ( rc = undinet_call ( undinic, 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 )
+	if ( ( rc = undinet_call ( undinic, 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 );
+	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 ( undi, "UNDI %p (%s) using IRQ %d\n",
-	       undi, eth_ntoa ( netdev->ll_addr ), undi->irq );
+	DBGC ( undinic, "UNDINIC %p (%s) using IRQ %d\n",
+	       undinic, eth_ntoa ( netdev->ll_addr ), undinic->irq );
 
 	/* Point to NIC specific routines */
-	netdev->open	 = undi_open;
-	netdev->close	 = undi_close;
-	netdev->transmit = undi_transmit;
-	netdev->poll	 = undi_poll;
+	netdev->open	 = undinet_open;
+	netdev->close	 = undinet_close;
+	netdev->transmit = undinet_transmit;
+	netdev->poll	 = undinet_poll;
 
 	/* Register network device */
 	if ( ( rc = register_netdev ( netdev ) ) != 0 )
  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 ) );
+	undinet_call ( undinic, 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 ) );
+	undinet_call ( undinic, 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 ) );
+	undinet_call ( undinic, PXENV_STOP_UNDI, &stop_undi,
+		       sizeof ( stop_undi ) );
  err_start_undi:
 	free_netdev ( netdev );
-	pxe_set_drvdata ( pxe, NULL );
+	undi_set_drvdata ( undi, NULL );
 	return rc;
 }
 
 /**
- * Remove PXE device
+ * Remove UNDI device
  *
- * @v pxe		PXE device
+ * @v undi		UNDI device
  */
-void undi_remove ( struct pxe_device *pxe ) {
-	struct net_device *netdev = pxe_get_drvdata ( pxe );
-	struct undi_nic *undi = netdev->priv;
+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;
 
 	/* Shut down UNDI stack */
 	memset ( &undi_shutdown, 0, sizeof ( undi_shutdown ) );
-	undi_call ( undi, PXENV_UNDI_SHUTDOWN, &undi_shutdown,
-		    sizeof ( undi_shutdown ) );
+	undinet_call ( undinic, 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 ) );
+	undinet_call ( undinic, 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 ) );
+	undinet_call ( undinic, PXENV_STOP_UNDI, &stop_undi,
+		       sizeof ( stop_undi ) );
 
 	/* Free network device */
 	free_netdev ( netdev );

src/arch/i386/include/undi.h

+#ifndef _UNDI_H
+#define _UNDI_H
+
+/** @file
+ *
+ * UNDI driver
+ *
+ */
+
+/** An UNDI device */
+struct undi_device {
+	/** Generic device */
+	struct device dev;
+	/** Driver-private data
+	 *
+	 * Use undi_set_drvdata() and undi_get_drvdata() to access this
+	 * field.
+	 */
+	void *priv;
+
+	/** PXENV+ structure address */
+	SEGOFF16_t pxenv;
+	/** !PXE structure address */
+	SEGOFF16_t ppxe;
+	/** Entry point */
+	SEGOFF16_t entry;
+	/** PCI bus:dev.fn, or 0 */
+	unsigned int pci_busdevfn;
+	/** ISAPnP card select number, or -1U */
+	unsigned int isapnp_csn;
+	/** ISAPnP read port, or -1U */
+	unsigned int isapnp_read_port;
+	/** Free base memory prior to load */
+	unsigned int restore_fbms;
+	/** Free base memory after load */
+	unsigned int fbms;
+};
+
+/**
+ * Set UNDI driver-private data
+ *
+ * @v undi		UNDI device
+ * @v priv		Private data
+ */
+static inline void undi_set_drvdata ( struct undi_device *undi, void *priv ) {
+	undi->priv = priv;
+}
+
+/**
+ * Get UNDI driver-private data
+ *
+ * @v undi		UNDI device
+ * @ret priv		Private data
+ */
+static inline void * undi_get_drvdata ( struct undi_device *undi ) {
+	return undi->priv;
+}
+
+#endif /* _UNDI_H */

src/arch/i386/include/undinet.h

+#ifndef _UNDINET_H
+#define _UNDINET_H
+
+/** @file
+ *
+ * UNDI network device driver
+ *
+ */
+
+struct undi_device;
+
+extern int undinet_probe ( struct undi_device *undi );
+extern void undinet_remove ( struct undi_device *undi );
+
+#endif /* _UNDINET_H */