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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:52 +0000
commitca67b09c015d4af3ae3cce12aa72e60941dbb8b5 (patch)
treeb7316d7b06c373e08dabb79a2c866c568e08f49e /debian/grub-extras/disabled/gpxe/src/drivers/net/rtl8139.c
parentAdding upstream version 2.06. (diff)
downloadgrub2-debian.tar.xz
grub2-debian.zip
Adding debian version 2.06-13+deb12u1.debian/2.06-13+deb12u1debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/grub-extras/disabled/gpxe/src/drivers/net/rtl8139.c')
-rw-r--r--debian/grub-extras/disabled/gpxe/src/drivers/net/rtl8139.c606
1 files changed, 606 insertions, 0 deletions
diff --git a/debian/grub-extras/disabled/gpxe/src/drivers/net/rtl8139.c b/debian/grub-extras/disabled/gpxe/src/drivers/net/rtl8139.c
new file mode 100644
index 0000000..dd35f74
--- /dev/null
+++ b/debian/grub-extras/disabled/gpxe/src/drivers/net/rtl8139.c
@@ -0,0 +1,606 @@
+/* rtl8139.c - etherboot driver for the Realtek 8139 chipset
+
+ ported from the linux driver written by Donald Becker
+ by Rainer Bawidamann (Rainer.Bawidamann@informatik.uni-ulm.de) 1999
+
+ This software may be used and distributed according to the terms
+ of the GNU Public License, incorporated herein by reference.
+
+ changes to the original driver:
+ - removed support for interrupts, switching to polling mode (yuck!)
+ - removed support for the 8129 chip (external MII)
+
+*/
+
+FILE_LICENCE ( GPL_ANY );
+
+/*********************************************************************/
+/* Revision History */
+/*********************************************************************/
+
+/*
+ 27 May 2006 mcb30@users.sourceforge.net (Michael Brown)
+ Rewrote to use the new net driver API, the updated PCI API, and
+ the generic three-wire serial device support for EEPROM access.
+
+ 28 Dec 2002 ken_yap@users.sourceforge.net (Ken Yap)
+ Put in virt_to_bus calls to allow Etherboot relocation.
+
+ 06 Apr 2001 ken_yap@users.sourceforge.net (Ken Yap)
+ Following email from Hyun-Joon Cha, added a disable routine, otherwise
+ NIC remains live and can crash the kernel later.
+
+ 4 Feb 2000 espenlaub@informatik.uni-ulm.de (Klaus Espenlaub)
+ Shuffled things around, removed the leftovers from the 8129 support
+ that was in the Linux driver and added a bit more 8139 definitions.
+ Moved the 8K receive buffer to a fixed, available address outside the
+ 0x98000-0x9ffff range. This is a bit of a hack, but currently the only
+ way to make room for the Etherboot features that need substantial amounts
+ of code like the ANSI console support. Currently the buffer is just below
+ 0x10000, so this even conforms to the tagged boot image specification,
+ which reserves the ranges 0x00000-0x10000 and 0x98000-0xA0000. My
+ interpretation of this "reserved" is that Etherboot may do whatever it
+ likes, as long as its environment is kept intact (like the BIOS
+ variables). Hopefully fixed rtl_poll() once and for all. The symptoms
+ were that if Etherboot was left at the boot menu for several minutes, the
+ first eth_poll failed. Seems like I am the only person who does this.
+ First of all I fixed the debugging code and then set out for a long bug
+ hunting session. It took me about a week full time work - poking around
+ various places in the driver, reading Don Becker's and Jeff Garzik's Linux
+ driver and even the FreeBSD driver (what a piece of crap!) - and
+ eventually spotted the nasty thing: the transmit routine was acknowledging
+ each and every interrupt pending, including the RxOverrun and RxFIFIOver
+ interrupts. This confused the RTL8139 thoroughly. It destroyed the
+ Rx ring contents by dumping the 2K FIFO contents right where we wanted to
+ get the next packet. Oh well, what fun.
+
+ 18 Jan 2000 mdc@etherboot.org (Marty Connor)
+ Drastically simplified error handling. Basically, if any error
+ in transmission or reception occurs, the card is reset.
+ Also, pointed all transmit descriptors to the same buffer to
+ save buffer space. This should decrease driver size and avoid
+ corruption because of exceeding 32K during runtime.
+
+ 28 Jul 1999 (Matthias Meixner - meixner@rbg.informatik.tu-darmstadt.de)
+ rtl_poll was quite broken: it used the RxOK interrupt flag instead
+ of the RxBufferEmpty flag which often resulted in very bad
+ transmission performace - below 1kBytes/s.
+
+*/
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <gpxe/io.h>
+#include <errno.h>
+#include <unistd.h>
+#include <byteswap.h>
+#include <gpxe/pci.h>
+#include <gpxe/if_ether.h>
+#include <gpxe/ethernet.h>
+#include <gpxe/iobuf.h>
+#include <gpxe/netdevice.h>
+#include <gpxe/spi_bit.h>
+#include <gpxe/threewire.h>
+#include <gpxe/nvo.h>
+
+#define TX_RING_SIZE 4
+
+struct rtl8139_tx {
+ unsigned int next;
+ struct io_buffer *iobuf[TX_RING_SIZE];
+};
+
+struct rtl8139_rx {
+ void *ring;
+ unsigned int offset;
+};
+
+struct rtl8139_nic {
+ unsigned short ioaddr;
+ struct rtl8139_tx tx;
+ struct rtl8139_rx rx;
+ struct spi_bit_basher spibit;
+ struct spi_device eeprom;
+ struct nvo_block nvo;
+};
+
+/* Tuning Parameters */
+#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */
+#define RX_FIFO_THRESH 4 /* Rx buffer level before first PCI xfer. */
+#define RX_DMA_BURST 4 /* Maximum PCI burst, '4' is 256 bytes */
+#define TX_DMA_BURST 4 /* Calculate as 16<<val. */
+#define TX_IPG 3 /* This is the only valid value */
+#define RX_BUF_LEN_IDX 0 /* 0, 1, 2 is allowed - 8,16,32K rx buffer */
+#define RX_BUF_LEN ( (8192 << RX_BUF_LEN_IDX) )
+#define RX_BUF_PAD 4
+
+/* Symbolic offsets to registers. */
+enum RTL8139_registers {
+ MAC0=0, /* Ethernet hardware address. */
+ MAR0=8, /* Multicast filter. */
+ TxStatus0=0x10, /* Transmit status (four 32bit registers). */
+ TxAddr0=0x20, /* Tx descriptors (also four 32bit). */
+ RxBuf=0x30, RxEarlyCnt=0x34, RxEarlyStatus=0x36,
+ ChipCmd=0x37, RxBufPtr=0x38, RxBufAddr=0x3A,
+ IntrMask=0x3C, IntrStatus=0x3E,
+ TxConfig=0x40, RxConfig=0x44,
+ Timer=0x48, /* general-purpose counter. */
+ RxMissed=0x4C, /* 24 bits valid, write clears. */
+ Cfg9346=0x50, Config0=0x51, Config1=0x52,
+ TimerIntrReg=0x54, /* intr if gp counter reaches this value */
+ MediaStatus=0x58,
+ Config3=0x59,
+ MultiIntr=0x5C,
+ RevisionID=0x5E, /* revision of the RTL8139 chip */
+ TxSummary=0x60,
+ MII_BMCR=0x62, MII_BMSR=0x64, NWayAdvert=0x66, NWayLPAR=0x68,
+ NWayExpansion=0x6A,
+ DisconnectCnt=0x6C, FalseCarrierCnt=0x6E,
+ NWayTestReg=0x70,
+ RxCnt=0x72, /* packet received counter */
+ CSCR=0x74, /* chip status and configuration register */
+ PhyParm1=0x78,TwisterParm=0x7c,PhyParm2=0x80, /* undocumented */
+ /* from 0x84 onwards are a number of power management/wakeup frame
+ * definitions we will probably never need to know about. */
+};
+
+enum RxEarlyStatusBits {
+ ERGood=0x08, ERBad=0x04, EROVW=0x02, EROK=0x01
+};
+
+enum ChipCmdBits {
+ CmdReset=0x10, CmdRxEnb=0x08, CmdTxEnb=0x04, RxBufEmpty=0x01, };
+
+enum IntrMaskBits {
+ SERR=0x8000, TimeOut=0x4000, LenChg=0x2000,
+ FOVW=0x40, PUN_LinkChg=0x20, RXOVW=0x10,
+ TER=0x08, TOK=0x04, RER=0x02, ROK=0x01
+};
+
+/* Interrupt register bits, using my own meaningful names. */
+enum IntrStatusBits {
+ PCIErr=0x8000, PCSTimeout=0x4000, CableLenChange= 0x2000,
+ RxFIFOOver=0x40, RxUnderrun=0x20, RxOverflow=0x10,
+ TxErr=0x08, TxOK=0x04, RxErr=0x02, RxOK=0x01,
+};
+enum TxStatusBits {
+ TxHostOwns=0x2000, TxUnderrun=0x4000, TxStatOK=0x8000,
+ TxOutOfWindow=0x20000000, TxAborted=0x40000000,
+ TxCarrierLost=0x80000000,
+};
+enum RxStatusBits {
+ RxMulticast=0x8000, RxPhysical=0x4000, RxBroadcast=0x2000,
+ RxBadSymbol=0x0020, RxRunt=0x0010, RxTooLong=0x0008, RxCRCErr=0x0004,
+ RxBadAlign=0x0002, RxStatusOK=0x0001,
+};
+
+enum MediaStatusBits {
+ MSRTxFlowEnable=0x80, MSRRxFlowEnable=0x40, MSRSpeed10=0x08,
+ MSRLinkFail=0x04, MSRRxPauseFlag=0x02, MSRTxPauseFlag=0x01,
+};
+
+enum MIIBMCRBits {
+ BMCRReset=0x8000, BMCRSpeed100=0x2000, BMCRNWayEnable=0x1000,
+ BMCRRestartNWay=0x0200, BMCRDuplex=0x0100,
+};
+
+enum CSCRBits {
+ CSCR_LinkOKBit=0x0400, CSCR_LinkChangeBit=0x0800,
+ CSCR_LinkStatusBits=0x0f000, CSCR_LinkDownOffCmd=0x003c0,
+ CSCR_LinkDownCmd=0x0f3c0,
+};
+
+enum RxConfigBits {
+ RxCfgWrap=0x80,
+ Eeprom9356=0x40,
+ AcceptErr=0x20, AcceptRunt=0x10, AcceptBroadcast=0x08,
+ AcceptMulticast=0x04, AcceptMyPhys=0x02, AcceptAllPhys=0x01,
+};
+
+enum Config1Bits {
+ VPDEnable=0x02,
+};
+
+/* EEPROM access */
+#define EE_M1 0x80 /* Mode select bit 1 */
+#define EE_M0 0x40 /* Mode select bit 0 */
+#define EE_CS 0x08 /* EEPROM chip select */
+#define EE_SK 0x04 /* EEPROM shift clock */
+#define EE_DI 0x02 /* Data in */
+#define EE_DO 0x01 /* Data out */
+
+/* Offsets within EEPROM (these are word offsets) */
+#define EE_MAC 7
+
+static const uint8_t rtl_ee_bits[] = {
+ [SPI_BIT_SCLK] = EE_SK,
+ [SPI_BIT_MOSI] = EE_DI,
+ [SPI_BIT_MISO] = EE_DO,
+ [SPI_BIT_SS(0)] = ( EE_CS | EE_M1 ),
+};
+
+static int rtl_spi_read_bit ( struct bit_basher *basher,
+ unsigned int bit_id ) {
+ struct rtl8139_nic *rtl = container_of ( basher, struct rtl8139_nic,
+ spibit.basher );
+ uint8_t mask = rtl_ee_bits[bit_id];
+ uint8_t eereg;
+
+ eereg = inb ( rtl->ioaddr + Cfg9346 );
+ return ( eereg & mask );
+}
+
+static void rtl_spi_write_bit ( struct bit_basher *basher,
+ unsigned int bit_id, unsigned long data ) {
+ struct rtl8139_nic *rtl = container_of ( basher, struct rtl8139_nic,
+ spibit.basher );
+ uint8_t mask = rtl_ee_bits[bit_id];
+ uint8_t eereg;
+
+ eereg = inb ( rtl->ioaddr + Cfg9346 );
+ eereg &= ~mask;
+ eereg |= ( data & mask );
+ outb ( eereg, rtl->ioaddr + Cfg9346 );
+}
+
+static struct bit_basher_operations rtl_basher_ops = {
+ .read = rtl_spi_read_bit,
+ .write = rtl_spi_write_bit,
+};
+
+/** Portion of EEPROM available for non-volatile stored options
+ *
+ * We use offset 0x40 (i.e. address 0x20), length 0x40. This block is
+ * marked as VPD in the rtl8139 datasheets, so we use it only if we
+ * detect that the card is not supporting VPD.
+ */
+static struct nvo_fragment rtl_nvo_fragments[] = {
+ { 0x20, 0x40 },
+ { 0, 0 }
+};
+
+/**
+ * Set up for EEPROM access
+ *
+ * @v netdev Net device
+ */
+static void rtl_init_eeprom ( struct net_device *netdev ) {
+ struct rtl8139_nic *rtl = netdev->priv;
+ int ee9356;
+ int vpd;
+
+ /* Initialise three-wire bus */
+ rtl->spibit.basher.op = &rtl_basher_ops;
+ rtl->spibit.bus.mode = SPI_MODE_THREEWIRE;
+ init_spi_bit_basher ( &rtl->spibit );
+
+ /* Detect EEPROM type and initialise three-wire device */
+ ee9356 = ( inw ( rtl->ioaddr + RxConfig ) & Eeprom9356 );
+ if ( ee9356 ) {
+ DBGC ( rtl, "rtl8139 %p EEPROM is an AT93C56\n", rtl );
+ init_at93c56 ( &rtl->eeprom, 16 );
+ } else {
+ DBGC ( rtl, "rtl8139 %p EEPROM is an AT93C46\n", rtl );
+ init_at93c46 ( &rtl->eeprom, 16 );
+ }
+ rtl->eeprom.bus = &rtl->spibit.bus;
+
+ /* Initialise space for non-volatile options, if available */
+ vpd = ( inw ( rtl->ioaddr + Config1 ) & VPDEnable );
+ if ( vpd ) {
+ DBGC ( rtl, "rtl8139 %p EEPROM in use for VPD; cannot use "
+ "for options\n", rtl );
+ } else {
+ nvo_init ( &rtl->nvo, &rtl->eeprom.nvs, rtl_nvo_fragments,
+ &netdev->refcnt );
+ }
+}
+
+/**
+ * Reset NIC
+ *
+ * @v netdev Net device
+ *
+ * Issues a hardware reset and waits for the reset to complete.
+ */
+static void rtl_reset ( struct net_device *netdev ) {
+ struct rtl8139_nic *rtl = netdev->priv;
+
+ /* Reset chip */
+ outb ( CmdReset, rtl->ioaddr + ChipCmd );
+ mdelay ( 10 );
+ memset ( &rtl->tx, 0, sizeof ( rtl->tx ) );
+ rtl->rx.offset = 0;
+}
+
+/**
+ * Open NIC
+ *
+ * @v netdev Net device
+ * @ret rc Return status code
+ */
+static int rtl_open ( struct net_device *netdev ) {
+ struct rtl8139_nic *rtl = netdev->priv;
+ int i;
+
+ /* Program the MAC address */
+ for ( i = 0 ; i < ETH_ALEN ; i++ )
+ outb ( netdev->ll_addr[i], rtl->ioaddr + MAC0 + i );
+
+ /* Set up RX ring */
+ rtl->rx.ring = malloc ( RX_BUF_LEN + RX_BUF_PAD );
+ if ( ! rtl->rx.ring )
+ return -ENOMEM;
+ outl ( virt_to_bus ( rtl->rx.ring ), rtl->ioaddr + RxBuf );
+ DBGC ( rtl, "rtl8139 %p RX ring at %lx\n",
+ rtl, virt_to_bus ( rtl->rx.ring ) );
+
+ /* Enable TX and RX */
+ outb ( ( CmdRxEnb | CmdTxEnb ), rtl->ioaddr + ChipCmd );
+ outl ( ( ( RX_FIFO_THRESH << 13 ) | ( RX_BUF_LEN_IDX << 11 ) |
+ ( RX_DMA_BURST << 8 ) | AcceptBroadcast | AcceptMulticast |
+ AcceptMyPhys ), rtl->ioaddr + RxConfig );
+ outl ( 0xffffffffUL, rtl->ioaddr + MAR0 + 0 );
+ outl ( 0xffffffffUL, rtl->ioaddr + MAR0 + 4 );
+ outl ( ( ( TX_DMA_BURST << 8 ) | ( TX_IPG << 24 ) ),
+ rtl->ioaddr + TxConfig );
+
+ return 0;
+}
+
+/**
+ * Close NIC
+ *
+ * @v netdev Net device
+ */
+static void rtl_close ( struct net_device *netdev ) {
+ struct rtl8139_nic *rtl = netdev->priv;
+
+ /* Reset the hardware to disable everything in one go */
+ rtl_reset ( netdev );
+
+ /* Free RX ring */
+ free ( rtl->rx.ring );
+ rtl->rx.ring = NULL;
+}
+
+/**
+ * Transmit packet
+ *
+ * @v netdev Network device
+ * @v iobuf I/O buffer
+ * @ret rc Return status code
+ */
+static int rtl_transmit ( struct net_device *netdev,
+ struct io_buffer *iobuf ) {
+ struct rtl8139_nic *rtl = netdev->priv;
+
+ /* Check for space in TX ring */
+ if ( rtl->tx.iobuf[rtl->tx.next] != NULL ) {
+ DBGC ( rtl, "rtl8139 %p TX overflow\n", rtl );
+ return -ENOBUFS;
+ }
+
+ /* Pad and align packet */
+ iob_pad ( iobuf, ETH_ZLEN );
+
+ /* Add to TX ring */
+ DBGC2 ( rtl, "rtl8139 %p TX id %d at %lx+%zx\n", rtl, rtl->tx.next,
+ virt_to_bus ( iobuf->data ), iob_len ( iobuf ) );
+ rtl->tx.iobuf[rtl->tx.next] = iobuf;
+ outl ( virt_to_bus ( iobuf->data ),
+ rtl->ioaddr + TxAddr0 + 4 * rtl->tx.next );
+ outl ( ( ( ( TX_FIFO_THRESH & 0x7e0 ) << 11 ) | iob_len ( iobuf ) ),
+ rtl->ioaddr + TxStatus0 + 4 * rtl->tx.next );
+ rtl->tx.next = ( rtl->tx.next + 1 ) % TX_RING_SIZE;
+
+ return 0;
+}
+
+/**
+ * Poll for received packets
+ *
+ * @v netdev Network device
+ */
+static void rtl_poll ( struct net_device *netdev ) {
+ struct rtl8139_nic *rtl = netdev->priv;
+ unsigned int status;
+ unsigned int tsad;
+ unsigned int rx_status;
+ unsigned int rx_len;
+ struct io_buffer *rx_iob;
+ int wrapped_len;
+ int i;
+
+ /* Acknowledge interrupts */
+ status = inw ( rtl->ioaddr + IntrStatus );
+ if ( ! status )
+ return;
+ outw ( status, rtl->ioaddr + IntrStatus );
+
+ /* Handle TX completions */
+ tsad = inw ( rtl->ioaddr + TxSummary );
+ for ( i = 0 ; i < TX_RING_SIZE ; i++ ) {
+ if ( ( rtl->tx.iobuf[i] != NULL ) && ( tsad & ( 1 << i ) ) ) {
+ DBGC2 ( rtl, "rtl8139 %p TX id %d complete\n",
+ rtl, i );
+ netdev_tx_complete ( netdev, rtl->tx.iobuf[i] );
+ rtl->tx.iobuf[i] = NULL;
+ }
+ }
+
+ /* Handle received packets */
+ while ( ! ( inw ( rtl->ioaddr + ChipCmd ) & RxBufEmpty ) ) {
+ rx_status = * ( ( uint16_t * )
+ ( rtl->rx.ring + rtl->rx.offset ) );
+ rx_len = * ( ( uint16_t * )
+ ( rtl->rx.ring + rtl->rx.offset + 2 ) );
+ if ( rx_status & RxOK ) {
+ DBGC2 ( rtl, "rtl8139 %p RX packet at offset "
+ "%x+%x\n", rtl, rtl->rx.offset, rx_len );
+
+ rx_iob = alloc_iob ( rx_len );
+ if ( ! rx_iob ) {
+ netdev_rx_err ( netdev, NULL, -ENOMEM );
+ /* Leave packet for next call to poll() */
+ break;
+ }
+
+ wrapped_len = ( ( rtl->rx.offset + 4 + rx_len )
+ - RX_BUF_LEN );
+ if ( wrapped_len < 0 )
+ wrapped_len = 0;
+
+ memcpy ( iob_put ( rx_iob, rx_len - wrapped_len ),
+ rtl->rx.ring + rtl->rx.offset + 4,
+ rx_len - wrapped_len );
+ memcpy ( iob_put ( rx_iob, wrapped_len ),
+ rtl->rx.ring, wrapped_len );
+
+ netdev_rx ( netdev, rx_iob );
+ } else {
+ DBGC ( rtl, "rtl8139 %p RX bad packet (status %#04x "
+ "len %d)\n", rtl, rx_status, rx_len );
+ netdev_rx_err ( netdev, NULL, -EINVAL );
+ }
+ rtl->rx.offset = ( ( ( rtl->rx.offset + 4 + rx_len + 3 ) & ~3 )
+ % RX_BUF_LEN );
+ outw ( rtl->rx.offset - 16, rtl->ioaddr + RxBufPtr );
+ }
+}
+
+/**
+ * Enable/disable interrupts
+ *
+ * @v netdev Network device
+ * @v enable Interrupts should be enabled
+ */
+static void rtl_irq ( struct net_device *netdev, int enable ) {
+ struct rtl8139_nic *rtl = netdev->priv;
+
+ DBGC ( rtl, "rtl8139 %p interrupts %s\n",
+ rtl, ( enable ? "enabled" : "disabled" ) );
+ outw ( ( enable ? ( ROK | RER | TOK | TER ) : 0 ),
+ rtl->ioaddr + IntrMask );
+}
+
+/** RTL8139 net device operations */
+static struct net_device_operations rtl_operations = {
+ .open = rtl_open,
+ .close = rtl_close,
+ .transmit = rtl_transmit,
+ .poll = rtl_poll,
+ .irq = rtl_irq,
+};
+
+/**
+ * Probe PCI device
+ *
+ * @v pci PCI device
+ * @v id PCI ID
+ * @ret rc Return status code
+ */
+static int rtl_probe ( struct pci_device *pci,
+ const struct pci_device_id *id __unused ) {
+ struct net_device *netdev;
+ struct rtl8139_nic *rtl;
+ int rc;
+
+ /* Allocate net device */
+ netdev = alloc_etherdev ( sizeof ( *rtl ) );
+ if ( ! netdev )
+ return -ENOMEM;
+ netdev_init ( netdev, &rtl_operations );
+ rtl = netdev->priv;
+ pci_set_drvdata ( pci, netdev );
+ netdev->dev = &pci->dev;
+ memset ( rtl, 0, sizeof ( *rtl ) );
+ rtl->ioaddr = pci->ioaddr;
+
+ /* Fix up PCI device */
+ adjust_pci_device ( pci );
+
+ /* Reset the NIC, set up EEPROM access and read MAC address */
+ rtl_reset ( netdev );
+ rtl_init_eeprom ( netdev );
+ nvs_read ( &rtl->eeprom.nvs, EE_MAC, netdev->hw_addr, ETH_ALEN );
+
+ /* Mark as link up; we don't yet handle link state */
+ netdev_link_up ( netdev );
+
+ /* Register network device */
+ if ( ( rc = register_netdev ( netdev ) ) != 0 )
+ goto err_register_netdev;
+
+ /* Register non-volatile storage */
+ if ( rtl->nvo.nvs ) {
+ if ( ( rc = register_nvo ( &rtl->nvo,
+ netdev_settings ( netdev ) ) ) != 0)
+ goto err_register_nvo;
+ }
+
+ return 0;
+
+ err_register_nvo:
+ unregister_netdev ( netdev );
+ err_register_netdev:
+ rtl_reset ( netdev );
+ netdev_nullify ( netdev );
+ netdev_put ( netdev );
+ return rc;
+}
+
+/**
+ * Remove PCI device
+ *
+ * @v pci PCI device
+ */
+static void rtl_remove ( struct pci_device *pci ) {
+ struct net_device *netdev = pci_get_drvdata ( pci );
+ struct rtl8139_nic *rtl = netdev->priv;
+
+ if ( rtl->nvo.nvs )
+ unregister_nvo ( &rtl->nvo );
+ unregister_netdev ( netdev );
+ rtl_reset ( netdev );
+ netdev_nullify ( netdev );
+ netdev_put ( netdev );
+}
+
+static struct pci_device_id rtl8139_nics[] = {
+PCI_ROM(0x10ec, 0x8129, "rtl8129", "Realtek 8129", 0),
+PCI_ROM(0x10ec, 0x8139, "rtl8139", "Realtek 8139", 0),
+PCI_ROM(0x10ec, 0x8138, "rtl8139b", "Realtek 8139B", 0),
+PCI_ROM(0x1186, 0x1300, "dfe538", "DFE530TX+/DFE538TX", 0),
+PCI_ROM(0x1113, 0x1211, "smc1211-1", "SMC EZ10/100", 0),
+PCI_ROM(0x1112, 0x1211, "smc1211", "SMC EZ10/100", 0),
+PCI_ROM(0x1500, 0x1360, "delta8139", "Delta Electronics 8139", 0),
+PCI_ROM(0x4033, 0x1360, "addtron8139", "Addtron Technology 8139", 0),
+PCI_ROM(0x1186, 0x1340, "dfe690txd", "D-Link DFE690TXD", 0),
+PCI_ROM(0x13d1, 0xab06, "fe2000vx", "AboCom FE2000VX", 0),
+PCI_ROM(0x1259, 0xa117, "allied8139", "Allied Telesyn 8139", 0),
+PCI_ROM(0x14ea, 0xab06, "fnw3603tx", "Planex FNW-3603-TX", 0),
+PCI_ROM(0x14ea, 0xab07, "fnw3800tx", "Planex FNW-3800-TX", 0),
+PCI_ROM(0xffff, 0x8139, "clone-rtl8139", "Cloned 8139", 0),
+};
+
+struct pci_driver rtl8139_driver __pci_driver = {
+ .ids = rtl8139_nics,
+ .id_count = ( sizeof ( rtl8139_nics ) / sizeof ( rtl8139_nics[0] ) ),
+ .probe = rtl_probe,
+ .remove = rtl_remove,
+};
+
+GRUB_MOD_LICENSE("GPLv2+");
+
+GRUB_MOD_INIT(gpxe_rtl8139)
+{
+ grub_gpxe_register_pci_nic (&rtl8139_driver);
+}
+
+GRUB_MOD_FINI(gpxe_rtl8139)
+{
+ grub_gpxe_unregister_pci_nic (&rtl8139_driver);
+}