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-rw-r--r--gpxe/src/drivers/net/eepro100.c1692
1 files changed, 1024 insertions, 668 deletions
diff --git a/gpxe/src/drivers/net/eepro100.c b/gpxe/src/drivers/net/eepro100.c
index e6e7db49..8a75608c 100644
--- a/gpxe/src/drivers/net/eepro100.c
+++ b/gpxe/src/drivers/net/eepro100.c
@@ -1,17 +1,17 @@
/*
- * eepro100.c -- This file implements the eepro100 driver for etherboot.
+ * eepro100.c -- This is a driver for Intel Fast Ethernet Controllers
+ * (ifec).
*
+ * Originally written for Etherboot by:
*
- * Copyright (C) AW Computer Systems.
- * written by R.E.Wolff -- R.E.Wolff@BitWizard.nl
+ * Copyright (C) AW Computer Systems.
+ * written by R.E.Wolff -- R.E.Wolff@BitWizard.nl
*
+ * AW Computer Systems is contributing to the free software community
+ * by paying for this driver and then putting the result under GPL.
*
- * AW Computer Systems is contributing to the free software community
- * by paying for this driver and then putting the result under GPL.
- *
- * If you need a Linux device driver, please contact BitWizard for a
- * quote.
- *
+ * If you need a Linux device driver, please contact BitWizard for a
+ * quote.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@@ -28,14 +28,17 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
- * date version by what
- * Written: May 29 1997 V0.10 REW Initial revision.
- * changes: May 31 1997 V0.90 REW Works!
- * Jun 1 1997 V0.91 REW Cleanup
- * Jun 2 1997 V0.92 REW Add some code documentation
- * Jul 25 1997 V1.00 REW Tested by AW to work in a PROM
- * Cleanup for publication
+ * date version by what
+ * Written: May 29 1997 V0.10 REW Initial revision.
+ * changes: May 31 1997 V0.90 REW Works!
+ * Jun 1 1997 V0.91 REW Cleanup
+ * Jun 2 1997 V0.92 REW Add some code documentation
+ * Jul 25 1997 V1.00 REW Tested by AW to work in a PROM
+ * Cleanup for publication
* Dez 11 2004 V1.10 Kiszka Add RX ring buffer support
+ * Jun 2008 v2.0 mdeck Updated to gPXE. Changed much.
+ *
+ * Cleanups and fixes by Thomas Miletich<thomas.miletich@gmail.com>
*
* This is the etherboot intel etherexpress Pro/100B driver.
*
@@ -44,803 +47,1156 @@
* lower level routines have been cut-and-pasted into this source.
*
* The driver was finished before Intel got the NDA out of the closet.
- * I still don't have the docs.
- *
*
* Datasheet is now published and available from
* ftp://download.intel.com/design/network/manuals/8255X_OpenSDM.pdf
* - Michael Brown
* */
-/* Philosophy of this driver.
- *
- * Probing:
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/*
+ * General Theory of Operation
*
- * Using the pci.c functions of the Etherboot code, the 82557 chip is detected.
- * It is verified that the BIOS initialized everything properly and if
- * something is missing it is done now.
+ * Initialization
*
+ * ifec_pci_probe() is called by gPXE during initialization. Typical NIC
+ * initialization is performed. EEPROM data is read.
*
- * Initialization:
+ * Network Boot
*
+ * ifec_net_open() is called by gPXE before attempting to network boot from the
+ * card. Here, the Command Unit & Receive Unit are initialized. The tx & rx
+ * rings are setup. The MAC address is programmed and the card is configured.
*
- * The chip is then initialized to "know" its ethernet address, and to
- * start recieving packets. The Linux driver has a whole transmit and
- * recieve ring of buffers. This is neat if you need high performance:
- * you can write the buffers asynchronously to the chip reading the
- * buffers and transmitting them over the network. Performance is NOT
- * an issue here. We can boot a 400k kernel in about two
- * seconds. (Theory: 0.4 seconds). Booting a system is going to take
- * about half a minute anyway, so getting 10 times closer to the
- * theoretical limit is going to make a difference of a few percent. */
-/* Not totally true: busy networks can cause packet drops due to RX
- * buffer overflows. Fixed in V1.10 of this driver. [Kiszka] */
-/*
+ * Transmit
*
- * Transmitting and recieving.
+ * ifec_net_transmit() enqueues a packet in the tx ring - active::tcbs[] The tx
+ * ring is composed of TCBs linked to each other into a ring. A tx request
+ * fills out the next available TCB with a pointer to the packet data.
+ * The last enqueued tx is always at active::tcb_head. Thus, a tx request fills
+ * out the TCB following tcb_head.
+ * active::tcb_tail points to the TCB we're awaiting completion of.
+ * ifec_tx_process() checks tcb_tail, and once complete,
+ * blindly increments tcb_tail to the next ring TCB.
*
- * We have only one transmit descriptor. It has two buffer descriptors:
- * one for the header, and the other for the data.
- * We have multiple receive buffers (currently: 4). The chip is told to
- * receive packets and suspend itself once it ran on the last free buffer.
- * The recieve (poll) routine simply looks at the current recieve buffer,
- * picks the packet if any, and releases this buffer again (classic ring
- * buffer concept). This helps to avoid packet drops on busy networks.
+ * Receive
*
- * Caveats:
- *
- * The Etherboot framework moves the code to the 48k segment from
- * 0x94000 to 0xa0000. There is just a little room between the end of
- * this driver and the 0xa0000 address. If you compile in too many
- * features, this will overflow.
- * The number under "hex" in the output of size that scrolls by while
- * compiling should be less than 8000. Maybe even the stack is up there,
- * so that you need even more headroom.
+ * priv::rfds[] is an array of Receive Frame Descriptors. The RFDs are linked
+ * together to form a ring.
+ * ifec_net_poll() calls ifec_rx_process(), which checks the next RFD for
+ * data. If we received a packet, we allocate a new io_buffer and copy the
+ * packet data into it. If alloc_iob() fails, we don't touch the RFD and try
+ * again on the next poll.
*/
-/* The etherboot authors seem to dislike the argument ordering in
- * outb macros that Linux uses. I disklike the confusion that this
- * has caused even more.... This file uses the Linux argument ordering. */
-/* Sorry not us. It's inherited code from FreeBSD. [The authors] */
+/*
+ * Debugging levels:
+ * - DBG() is for any errors, i.e. failed alloc_iob(), malloc_dma(),
+ * TX overflow, corrupted packets, ...
+ * - DBG2() is for successful events, like packet received,
+ * packet transmitted, and other general notifications.
+ * - DBGP() prints the name of each called function on entry
+ */
-#include "etherboot.h"
-#include "nic.h"
+#include <stdint.h>
+#include <byteswap.h>
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
#include <gpxe/ethernet.h>
+#include <gpxe/if_ether.h>
+#include <gpxe/iobuf.h>
+#include <gpxe/malloc.h>
#include <gpxe/pci.h>
+#include <gpxe/spi_bit.h>
+#include <gpxe/timer.h>
+#include <gpxe/nvs.h>
+#include <gpxe/threewire.h>
+#include <gpxe/netdevice.h>
+#include "eepro100.h"
-static int ioaddr;
+/****************************** Global data **********************************/
-enum speedo_offsets {
- SCBStatus = 0, SCBCmd = 2, /* Rx/Command Unit command and status. */
- SCBPointer = 4, /* General purpose pointer. */
- SCBPort = 8, /* Misc. commands and operands. */
- SCBflash = 12, SCBeeprom = 14, /* EEPROM and flash memory control. */
- SCBCtrlMDI = 16, /* MDI interface control. */
- SCBEarlyRx = 20, /* Early receive byte count. */
+/*
+ * This is the default configuration command data. The values were copied from
+ * the Linux kernel initialization for the eepro100.
+ */
+static struct ifec_cfg ifec_cfg = {
+ .status = 0,
+ .command = CmdConfigure | CmdSuspend,
+ .link = 0, /* Filled in later */
+ .byte = { 22, /* How many bytes in this array */
+ ( TX_FIFO << 4 ) | RX_FIFO, /* Rx & Tx FIFO limits */
+ 0, 0, /* Adaptive Interframe Spacing */
+ RX_DMA_COUNT, /* Rx DMA max byte count */
+ TX_DMA_COUNT + 0x80, /* Tx DMA max byte count */
+ 0x32, /* Many bits. */
+ 0x03, /* Discard short receive & Underrun retries */
+ 1, /* 1=Use MII 0=Use AUI */
+ 0,
+ 0x2E, /* NSAI, Preamble length, & Loopback*/
+ 0, /* Linear priority */
+ 0x60, /* L PRI MODE & Interframe spacing */
+ 0, 0xf2,
+ 0x48, /* Promiscuous, Broadcast disable, CRS & CDT */
+ 0, 0x40,
+ 0xf2, /* Stripping, Padding, Receive CRC Transfer */
+ 0x80, /* 0x40=Force full-duplex, 0x80=Allowfull-duplex*/
+ 0x3f, /* Multiple IA */
+ 0x0D } /* Multicast all */
};
-enum SCBCmdBits {
- SCBMaskCmdDone=0x8000, SCBMaskRxDone=0x4000, SCBMaskCmdIdle=0x2000,
- SCBMaskRxSuspend=0x1000, SCBMaskEarlyRx=0x0800, SCBMaskFlowCtl=0x0400,
- SCBTriggerIntr=0x0200, SCBMaskAll=0x0100,
- /* The rest are Rx and Tx commands. */
- CUStart=0x0010, CUResume=0x0020, CUStatsAddr=0x0040, CUShowStats=0x0050,
- CUCmdBase=0x0060, /* CU Base address (set to zero) . */
- CUDumpStats=0x0070, /* Dump then reset stats counters. */
- RxStart=0x0001, RxResume=0x0002, RxAbort=0x0004, RxAddrLoad=0x0006,
- RxResumeNoResources=0x0007,
+static struct net_device_operations ifec_operations = {
+ .open = ifec_net_open,
+ .close = ifec_net_close,
+ .transmit = ifec_net_transmit,
+ .poll = ifec_net_poll,
+ .irq = ifec_net_irq
};
-static int do_eeprom_cmd(int cmd, int cmd_len);
-void hd(void *where, int n);
-
-/***********************************************************************/
-/* I82557 related defines */
-/***********************************************************************/
-
-/* Serial EEPROM section.
- A "bit" grungy, but we work our way through bit-by-bit :->. */
-/* EEPROM_Ctrl bits. */
-#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */
-#define EE_CS 0x02 /* EEPROM chip select. */
-#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */
-#define EE_DATA_READ 0x08 /* EEPROM chip data out. */
-#define EE_WRITE_0 0x4802
-#define EE_WRITE_1 0x4806
-#define EE_ENB (0x4800 | EE_CS)
-
-/* The EEPROM commands include the alway-set leading bit. */
-#define EE_READ_CMD 6
-
-/* The SCB accepts the following controls for the Tx and Rx units: */
-#define CU_START 0x0010
-#define CU_RESUME 0x0020
-#define CU_STATSADDR 0x0040
-#define CU_SHOWSTATS 0x0050 /* Dump statistics counters. */
-#define CU_CMD_BASE 0x0060 /* Base address to add to add CU commands. */
-#define CU_DUMPSTATS 0x0070 /* Dump then reset stats counters. */
-
-#define RX_START 0x0001
-#define RX_RESUME 0x0002
-#define RX_ABORT 0x0004
-#define RX_ADDR_LOAD 0x0006
-#define RX_RESUMENR 0x0007
-#define INT_MASK 0x0100
-#define DRVR_INT 0x0200 /* Driver generated interrupt. */
-
-enum phy_chips { NonSuchPhy=0, I82553AB, I82553C, I82503, DP83840, S80C240,
- S80C24, PhyUndefined, DP83840A=10, };
-
-/* Commands that can be put in a command list entry. */
-enum commands {
- CmdNOp = 0,
- CmdIASetup = 1,
- CmdConfigure = 2,
- CmdMulticastList = 3,
- CmdTx = 4,
- CmdTDR = 5,
- CmdDump = 6,
- CmdDiagnose = 7,
-
- /* And some extra flags: */
- CmdSuspend = 0x4000, /* Suspend after completion. */
- CmdIntr = 0x2000, /* Interrupt after completion. */
- CmdTxFlex = 0x0008, /* Use "Flexible mode" for CmdTx command. */
-};
+/******************* gPXE PCI Device Driver API functions ********************/
-/* How to wait for the command unit to accept a command.
- Typically this takes 0 ticks. */
-static inline void wait_for_cmd_done(int cmd_ioaddr)
+/*
+ * Initialize the PCI device.
+ *
+ * @v pci The device's associated pci_device structure.
+ * @v id The PCI device + vendor id.
+ * @ret rc Returns zero if successfully initialized.
+ *
+ * This function is called very early on, while gPXE is initializing.
+ * This is a gPXE PCI Device Driver API function.
+ */
+static int ifec_pci_probe ( struct pci_device *pci,
+ const struct pci_device_id *id __unused )
{
- int wait = 0;
- int delayed_cmd;
-
- do
- if (inb(cmd_ioaddr) == 0) return;
- while(++wait <= 100);
- delayed_cmd = inb(cmd_ioaddr);
- do
- if (inb(cmd_ioaddr) == 0) break;
- while(++wait <= 10000);
- printf("Command %2.2x was not immediately accepted, %d ticks!\n",
- delayed_cmd, wait);
+ struct net_device *netdev;
+ struct ifec_private *priv;
+ int rc;
+
+ DBGP ( "ifec_pci_probe: " );
+
+ if ( pci->ioaddr == 0 )
+ return -EINVAL;
+
+ netdev = alloc_etherdev ( sizeof(*priv) );
+ if ( !netdev )
+ return -ENOMEM;
+
+ netdev_init ( netdev, &ifec_operations );
+ priv = netdev->priv;
+
+ pci_set_drvdata ( pci, netdev );
+ netdev->dev = &pci->dev;
+
+ /* enable bus master, etc */
+ adjust_pci_device( pci );
+
+ DBGP ( "pci " );
+
+ memset ( priv, 0, sizeof(*priv) );
+ priv->ioaddr = pci->ioaddr;
+
+ ifec_reset ( netdev );
+ DBGP ( "reset " );
+
+ ifec_init_eeprom ( netdev );
+
+ /* read MAC address */
+ nvs_read ( &priv->eeprom.nvs, EEPROM_ADDR_MAC_0, netdev->hw_addr,
+ ETH_ALEN );
+ /* read mdio_register */
+ nvs_read ( &priv->eeprom.nvs, EEPROM_ADDR_MDIO_REGISTER,
+ &priv->mdio_register, 2 );
+
+ ifec_link_update ( netdev ); /* Update link state */
+
+ if ( ( rc = register_netdev ( netdev ) ) != 0 )
+ goto error;
+
+ DBGP ( "ints\n" );
+
+ return 0;
+
+error:
+ ifec_reset ( netdev );
+ netdev_nullify ( netdev );
+ netdev_put ( netdev );
+
+ return rc;
}
-/* Elements of the dump_statistics block. This block must be lword aligned. */
-static struct speedo_stats {
- u32 tx_good_frames;
- u32 tx_coll16_errs;
- u32 tx_late_colls;
- u32 tx_underruns;
- u32 tx_lost_carrier;
- u32 tx_deferred;
- u32 tx_one_colls;
- u32 tx_multi_colls;
- u32 tx_total_colls;
- u32 rx_good_frames;
- u32 rx_crc_errs;
- u32 rx_align_errs;
- u32 rx_resource_errs;
- u32 rx_overrun_errs;
- u32 rx_colls_errs;
- u32 rx_runt_errs;
- u32 done_marker;
-} lstats;
-
-/* A speedo3 TX buffer descriptor with two buffers... */
-static struct TxFD {
- volatile s16 status;
- s16 command;
- u32 link; /* void * */
- u32 tx_desc_addr; /* (almost) Always points to the tx_buf_addr element. */
- s32 count; /* # of TBD (=2), Tx start thresh., etc. */
- /* This constitutes two "TBD" entries: hdr and data */
- u32 tx_buf_addr0; /* void *, header of frame to be transmitted. */
- s32 tx_buf_size0; /* Length of Tx hdr. */
- u32 tx_buf_addr1; /* void *, data to be transmitted. */
- s32 tx_buf_size1; /* Length of Tx data. */
-} txfd;
-
-struct RxFD { /* Receive frame descriptor. */
- volatile s16 status;
- s16 command;
- u32 link; /* struct RxFD * */
- u32 rx_buf_addr; /* void * */
- u16 count;
- u16 size;
- char packet[1518];
-};
+/*
+ * Remove a device from the PCI device list.
+ *
+ * @v pci PCI device to remove.
+ *
+ * This is a PCI Device Driver API function.
+ */
+static void ifec_pci_remove ( struct pci_device *pci )
+{
+ struct net_device *netdev = pci_get_drvdata ( pci );
+
+ DBGP ( "ifec_pci_remove\n" );
+
+ unregister_netdev ( netdev );
+ ifec_reset ( netdev );
+ netdev_nullify ( netdev );
+ netdev_put ( netdev );
+}
+
+/****************** gPXE Network Device Driver API functions *****************/
+
+/*
+ * Close a network device.
+ *
+ * @v netdev Device to close.
+ *
+ * This is a gPXE Network Device Driver API function.
+ */
+static void ifec_net_close ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ unsigned long ioaddr = priv->ioaddr;
+ unsigned short intr_status;
+
+ DBGP ( "ifec_net_close\n" );
+
+ /* disable interrupts */
+ ifec_net_irq ( netdev, 0 );
+
+ /* Ack & clear ints */
+ intr_status = inw ( ioaddr + SCBStatus );
+ outw ( intr_status, ioaddr + SCBStatus );
+ inw ( ioaddr + SCBStatus );
+
+ ifec_reset ( netdev );
+
+ /* Free any resources */
+ ifec_free ( netdev );
+}
+
+/* Interrupts to be masked */
+#define INTERRUPT_MASK ( SCBMaskEarlyRx | SCBMaskFlowCtl )
+
+/*
+ * Enable or disable IRQ masking.
+ *
+ * @v netdev Device to control.
+ * @v enable Zero to mask off IRQ, non-zero to enable IRQ.
+ *
+ * This is a gPXE Network Driver API function.
+ */
+static void ifec_net_irq ( struct net_device *netdev, int enable )
+{
+ struct ifec_private *priv = netdev->priv;
+ unsigned long ioaddr = priv->ioaddr;
+
+ DBGP ( "ifec_net_irq\n" );
+
+ outw ( enable ? INTERRUPT_MASK : SCBMaskAll, ioaddr + SCBCmd );
+}
+
+/*
+ * Opens a network device.
+ *
+ * @v netdev Device to be opened.
+ * @ret rc Non-zero if failed to open.
+ *
+ * This enables tx and rx on the device.
+ * This is a gPXE Network Device Driver API function.
+ */
+static int ifec_net_open ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ struct ifec_ias *ias = NULL;
+ struct ifec_cfg *cfg = NULL;
+ int i, options;
+ int rc = -ENOMEM;
+
+ DBGP ( "ifec_net_open: " );
+
+ /* Ensure interrupts are disabled. */
+ ifec_net_irq ( netdev, 0 );
+
+ /* Initialize Command Unit and Receive Unit base addresses. */
+ ifec_scb_cmd ( netdev, 0, RUAddrLoad );
+ ifec_scb_cmd ( netdev, virt_to_bus ( &priv->stats ), CUStatsAddr );
+ ifec_scb_cmd ( netdev, 0, CUCmdBase );
+
+ /* Initialize both rings */
+ if ( ( rc = ifec_rx_setup ( netdev ) ) != 0 )
+ goto error;
+ if ( ( rc = ifec_tx_setup ( netdev ) ) != 0 )
+ goto error;
+
+ /* Initialize MDIO */
+ options = 0x00; /* 0x40 = 10mbps half duplex, 0x00 = Autosense */
+ ifec_mdio_setup ( netdev, options );
+
+ /* Prepare MAC address w/ Individual Address Setup (ias) command.*/
+ ias = malloc_dma ( sizeof ( *ias ), CB_ALIGN );
+ if ( !ias ) {
+ rc = -ENOMEM;
+ goto error;
+ }
+ ias->command = CmdIASetup;
+ ias->status = 0;
+ memcpy ( ias->ia, netdev->ll_addr, ETH_ALEN );
+
+ /* Prepare operating parameters w/ a configure command. */
+ cfg = malloc_dma ( sizeof ( *cfg ), CB_ALIGN );
+ if ( !cfg ) {
+ rc = -ENOMEM;
+ goto error;
+ }
+ memcpy ( cfg, &ifec_cfg, sizeof ( *cfg ) );
+ cfg->link = virt_to_bus ( priv->tcbs );
+ cfg->byte[19] = ( options & 0x10 ) ? 0xC0 : 0x80;
+ ias->link = virt_to_bus ( cfg );
+
+ /* Issue the ias and configure commands. */
+ ifec_scb_cmd ( netdev, virt_to_bus ( ias ), CUStart );
+ ifec_scb_cmd_wait ( netdev );
+ priv->configured = 1;
+
+ /* Wait up to 10 ms for configuration to initiate */
+ for ( i = 10; i && !cfg->status; i-- )
+ mdelay ( 1 );
+ if ( ! cfg->status ) {
+ DBG ( "Failed to initiate!\n" );
+ goto error;
+ }
+ free_dma ( ias, sizeof ( *ias ) );
+ free_dma ( cfg, sizeof ( *cfg ) );
+ DBG2 ( "cfg " );
+
+ /* Enable rx by sending ring address to card */
+ if ( priv->rfds[0] != NULL ) {
+ ifec_scb_cmd ( netdev, virt_to_bus( priv->rfds[0] ), RUStart );
+ ifec_scb_cmd_wait ( netdev );
+ }
+ DBG2 ( "rx_start\n" );
+
+ return 0;
+
+error:
+ free_dma ( cfg, sizeof ( *cfg ) );
+ free_dma ( ias, sizeof ( *ias ) );
+ ifec_free ( netdev );
+ ifec_reset ( netdev );
+ return rc;
+}
+
+/*
+ * This function allows a driver to process events during operation.
+ *
+ * @v netdev Device being polled.
+ *
+ * This is called periodically by gPXE to let the driver check the status of
+ * transmitted packets and to allow the driver to check for received packets.
+ * This is a gPXE Network Device Driver API function.
+ */
+static void ifec_net_poll ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ static int linkpoll = 0;
+ unsigned short intr_status;
+
+ DBGP ( "ifec_net_poll\n" );
+
+ /* acknowledge interrupts ASAP */
+ intr_status = inw ( priv->ioaddr + SCBStatus );
+ outw ( intr_status, priv->ioaddr + SCBStatus );
+ inw ( priv->ioaddr + SCBStatus );
+
+ DBG2 ( "poll - status: 0x%04X\n", intr_status );
+
+ if ( ++linkpoll > LINK_CHECK_PERIOD ) {
+ linkpoll = 0;
+ ifec_link_update ( netdev ); /* Update link state */
+ }
+
+ /* anything to do here? */
+ if ( ( intr_status & ( ~INTERRUPT_MASK ) ) == 0 )
+ return;
+
+ /* process received and transmitted packets */
+ ifec_tx_process ( netdev );
+ ifec_rx_process ( netdev );
+
+ ifec_check_ru_status ( netdev, intr_status );
+
+ return;
+}
+
+/*
+ * This transmits a packet.
+ *
+ * @v netdev Device to transmit from.
+ * @v iobuf Data to transmit.
+ * @ret rc Non-zero if failed to transmit.
+ *
+ * This is a gPXE Network Driver API function.
+ */
+static int ifec_net_transmit ( struct net_device *netdev,
+ struct io_buffer *iobuf )
+{
+ struct ifec_private *priv = netdev->priv;
+ struct ifec_tcb *tcb = priv->tcb_head->next;
+ unsigned long ioaddr = priv->ioaddr;
+
+ DBGP ( "ifec_net_transmit\n" );
+
+ /* Wait for TCB to become available. */
+ if ( tcb->status || tcb->iob ) {
+ DBG ( "TX overflow\n" );
+ return -ENOBUFS;
+ }
+
+ DBG2 ( "transmitting packet (%d bytes). status = %hX, cmd=%hX\n",
+ iob_len ( iobuf ), tcb->status, inw ( ioaddr + SCBCmd ) );
+
+ tcb->command = CmdSuspend | CmdTx | CmdTxFlex;
+ tcb->count = 0x01208000;
+ tcb->tbd_addr0 = virt_to_bus ( iobuf->data );
+ tcb->tbd_size0 = 0x3FFF & iob_len ( iobuf );
+ tcb->iob = iobuf;
+
+ ifec_tx_wake ( netdev );
-static struct nic_operations eepro100_operations;
-
-#define RXFD_COUNT 4
-struct {
- struct RxFD rxfds[RXFD_COUNT];
-} eepro100_bufs __shared;
-#define rxfds eepro100_bufs.rxfds
-static unsigned int rxfd = 0;
-
-static int congenb = 0; /* Enable congestion control in the DP83840. */
-static int txfifo = 8; /* Tx FIFO threshold in 4 byte units, 0-15 */
-static int rxfifo = 8; /* Rx FIFO threshold, default 32 bytes. */
-static int txdmacount = 0; /* Tx DMA burst length, 0-127, default 0. */
-static int rxdmacount = 0; /* Rx DMA length, 0 means no preemption. */
-
-/* I don't understand a byte in this structure. It was copied from the
- * Linux kernel initialization for the eepro100. -- REW */
-static struct ConfCmd {
- s16 status;
- s16 command;
- u32 link;
- unsigned char data[22];
-} confcmd = {
- 0, 0, 0, /* filled in later */
- {22, 0x08, 0, 0, 0, 0x80, 0x32, 0x03, 1, /* 1=Use MII 0=Use AUI */
- 0, 0x2E, 0, 0x60, 0,
- 0xf2, 0x48, 0, 0x40, 0xf2, 0x80, /* 0x40=Force full-duplex */
- 0x3f, 0x05, }
+ /* Append to end of ring. */
+ priv->tcb_head = tcb;
+
+ return 0;
+}
+
+/*************************** Local support functions *************************/
+
+/* Define what each GPIO Pin does */
+static const uint16_t ifec_ee_bits[] = {
+ [SPI_BIT_SCLK] = EE_SHIFT_CLK,
+ [SPI_BIT_MOSI] = EE_DATA_WRITE,
+ [SPI_BIT_MISO] = EE_DATA_READ,
+ [SPI_BIT_SS(0)] = EE_ENB,
};
-/***********************************************************************/
-/* Locally used functions */
-/***********************************************************************/
+/*
+ * Read a single bit from the GPIO pins used for SPI.
+ * should be called by SPI bitbash functions only
+ *
+ * @v basher Bitbash device
+ * @v bit_id Line to be read
+ */
+static int ifec_spi_read_bit ( struct bit_basher *basher,
+ unsigned int bit_id )
+{
+ struct ifec_private *priv =
+ container_of ( basher, struct ifec_private, spi.basher );
+ unsigned long ee_addr = priv->ioaddr + CSREeprom;
+ unsigned int ret = 0;
+ uint16_t mask;
+
+ DBGP ( "ifec_spi_read_bit\n" );
-/* Support function: mdio_write
+ mask = ifec_ee_bits[bit_id];
+ ret = inw (ee_addr);
+
+ return ( ret & mask ) ? 1 : 0;
+}
+
+/*
+ * Write a single bit to the GPIO pins used for SPI.
+ * should be called by SPI bitbash functions only
*
- * This probably writes to the "physical media interface chip".
- * -- REW
+ * @v basher Bitbash device
+ * @v bit_id Line to write to
+ * @v data Value to write
*/
+static void ifec_spi_write_bit ( struct bit_basher *basher,
+ unsigned int bit_id,
+ unsigned long data )
+{
+ struct ifec_private *priv =
+ container_of ( basher, struct ifec_private, spi.basher );
+ unsigned long ee_addr = priv->ioaddr + CSREeprom;
+ short val;
+ uint16_t mask = ifec_ee_bits[bit_id];
+
+ DBGP ( "ifec_spi_write_bit\n" );
+
+ val = inw ( ee_addr );
+ val &= ~mask;
+ val |= data & mask;
-static int mdio_write(int phy_id, int location, int value)
+ outw ( val, ee_addr );
+}
+
+/* set function pointer to SPI read- and write-bit functions */
+static struct bit_basher_operations ifec_basher_ops = {
+ .read = ifec_spi_read_bit,
+ .write = ifec_spi_write_bit,
+};
+
+/*
+ * Initialize the eeprom stuff
+ *
+ * @v netdev Network device
+ */
+static void ifec_init_eeprom ( struct net_device *netdev )
{
- int val, boguscnt = 64*4; /* <64 usec. to complete, typ 27 ticks */
+ struct ifec_private *priv = netdev->priv;
- outl(0x04000000 | (location<<16) | (phy_id<<21) | value,
- ioaddr + SCBCtrlMDI);
- do {
- udelay(16);
+ DBGP ( "ifec_init_eeprom\n" );
- val = inl(ioaddr + SCBCtrlMDI);
- if (--boguscnt < 0) {
- printf(" mdio_write() timed out with val = %X.\n", val);
- break;
- }
- } while (! (val & 0x10000000));
- return val & 0xffff;
+ priv->spi.basher.op = &ifec_basher_ops;
+ priv->spi.bus.mode = SPI_MODE_THREEWIRE;
+ init_spi_bit_basher ( &priv->spi );
+
+ priv->eeprom.bus = &priv->spi.bus;
+
+ /* init as 93c46(93c14 compatible) first, to set the command len,
+ * block size and word len. Needs to be set for address len detection.
+ */
+ init_at93c46 ( &priv->eeprom, 16 );
+
+ /* detect address length, */
+ threewire_detect_address_len ( &priv->eeprom );
+
+ /* address len == 8 means 93c66 instead of 93c46 */
+ if ( priv->eeprom.address_len == 8 )
+ init_at93c66 ( &priv->eeprom, 16 );
+}
+
+/*
+ * Check if the network cable is plugged in.
+ *
+ * @v netdev Network device to check.
+ * @ret retval greater 0 if linkup.
+ */
+static int ifec_link_check ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ unsigned short mdio_register = priv->mdio_register;
+
+ DBGP ( "ifec_link_check\n" );
+
+ /* Read the status register once to discard stale data */
+ ifec_mdio_read ( netdev, mdio_register & 0x1f, 1 );
+ /* Check to see if network cable is plugged in. */
+ if ( ! ( ifec_mdio_read ( netdev, mdio_register & 0x1f, 1 )
+ & ( 1 << 2 ) ) ) {
+ return 0;
+ }
+ return 1;
}
-/* Support function: mdio_read
+/*
+ * Check network cable link, inform gPXE as appropriate.
+ *
+ * @v netdev Network device to check.
+ */
+static void ifec_link_update ( struct net_device *netdev )
+{
+ DBGP ( "ifec_link_update\n" );
+
+ /* Update link state */
+ if ( ifec_link_check ( netdev ) )
+ netdev_link_up ( netdev );
+ else
+ netdev_link_down ( netdev );
+}
+
+/*
+ * Support function: ifec_mdio_read
*
* This probably reads a register in the "physical media interface chip".
* -- REW
*/
-static int mdio_read(int phy_id, int location)
+static int ifec_mdio_read ( struct net_device *netdev, int phy_id,
+ int location )
{
- int val, boguscnt = 64*4; /* <64 usec. to complete, typ 27 ticks */
- outl(0x08000000 | (location<<16) | (phy_id<<21), ioaddr + SCBCtrlMDI);
+ struct ifec_private *priv = netdev->priv;
+ unsigned long ioaddr = priv->ioaddr;
+ int val;
+ int boguscnt = 64*4; /* <64 usec. to complete, typ 27 ticks */
+
+ DBGP ( "ifec_mdio_read\n" );
+
+ outl ( 0x08000000 | ( location << 16 ) | ( phy_id << 21 ),
+ ioaddr + CSRCtrlMDI );
do {
- udelay(16);
+ udelay ( 16 );
- val = inl(ioaddr + SCBCtrlMDI);
+ val = inl ( ioaddr + CSRCtrlMDI );
- if (--boguscnt < 0) {
- printf( " mdio_read() timed out with val = %X.\n", val);
+ if ( --boguscnt < 0 ) {
+ DBG ( " ifec_mdio_read() time out with val = %X.\n",
+ val );
break;
}
- } while (! (val & 0x10000000));
+ } while (! ( val & 0x10000000 ) );
return val & 0xffff;
}
-/* The fixes for the code were kindly provided by Dragan Stancevic
- <visitor@valinux.com> to strictly follow Intel specifications of EEPROM
- access timing.
- The publicly available sheet 64486302 (sec. 3.1) specifies 1us access
- interval for serial EEPROM. However, it looks like that there is an
- additional requirement dictating larger udelay's in the code below.
- 2000/05/24 SAW */
-static int do_eeprom_cmd(int cmd, int cmd_len)
+/*
+ * Initializes MDIO.
+ *
+ * @v netdev Network device
+ * @v options MDIO options
+ */
+static void ifec_mdio_setup ( struct net_device *netdev, int options )
{
- unsigned retval = 0;
- long ee_addr = ioaddr + SCBeeprom;
+ struct ifec_private *priv = netdev->priv;
+ unsigned short mdio_register = priv->mdio_register;
- outw(EE_ENB, ee_addr); udelay(2);
- outw(EE_ENB | EE_SHIFT_CLK, ee_addr); udelay(2);
+ DBGP ( "ifec_mdio_setup\n" );
- /* Shift the command bits out. */
- do {
- short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0;
- outw(dataval, ee_addr); udelay(2);
- outw(dataval | EE_SHIFT_CLK, ee_addr); udelay(2);
- retval = (retval << 1) | ((inw(ee_addr) & EE_DATA_READ) ? 1 : 0);
- } while (--cmd_len >= 0);
- outw(EE_ENB, ee_addr); udelay(2);
-
- /* Terminate the EEPROM access. */
- outw(EE_ENB & ~EE_CS, ee_addr);
- return retval;
+ if ( ( (mdio_register>>8) & 0x3f ) == DP83840
+ || ( (mdio_register>>8) & 0x3f ) == DP83840A ) {
+ int mdi_reg23 = ifec_mdio_read ( netdev, mdio_register
+ & 0x1f, 23 ) | 0x0422;
+ if (CONGENB)
+ mdi_reg23 |= 0x0100;
+ DBG2 ( "DP83840 specific setup, setting register 23 to "
+ "%hX.\n", mdi_reg23 );
+ ifec_mdio_write ( netdev, mdio_register & 0x1f, 23, mdi_reg23 );
+ }
+ DBG2 ( "dp83840 " );
+ if ( options != 0 ) {
+ ifec_mdio_write ( netdev, mdio_register & 0x1f, 0,
+ ( (options & 0x20) ? 0x2000 : 0 ) |
+ ( (options & 0x10) ? 0x0100 : 0 ) );
+ DBG2 ( "set mdio_register. " );
+ }
}
-#if 0
-static inline void whereami (const char *str)
+/*
+ * Support function: ifec_mdio_write
+ *
+ * This probably writes to the "physical media interface chip".
+ * -- REW
+ */
+static int ifec_mdio_write ( struct net_device *netdev,
+ int phy_id, int location, int value )
{
- printf ("%s\n", str);
- sleep (2);
-}
-#else
-#define whereami(s)
-#endif
+ struct ifec_private *priv = netdev->priv;
+ unsigned long ioaddr = priv->ioaddr;
+ int val;
+ int boguscnt = 64*4; /* <64 usec. to complete, typ 27 ticks */
-static void eepro100_irq(struct nic *nic __unused, irq_action_t action)
-{
- uint16_t enabled_mask = ( SCBMaskCmdDone | SCBMaskCmdIdle |
- SCBMaskEarlyRx | SCBMaskFlowCtl );
+ DBGP ( "ifec_mdio_write\n" );
- switch ( action ) {
- case DISABLE :
- outw(SCBMaskAll, ioaddr + SCBCmd);
- break;
- case ENABLE :
- outw(enabled_mask, ioaddr + SCBCmd);
- break;
- case FORCE :
- outw(enabled_mask | SCBTriggerIntr, ioaddr + SCBCmd);
- break;
- }
+ outl ( 0x04000000 | ( location << 16 ) | ( phy_id << 21 ) | value,
+ ioaddr + CSRCtrlMDI );
+ do {
+ udelay ( 16 );
+
+ val = inl ( ioaddr + CSRCtrlMDI );
+ if ( --boguscnt < 0 ) {
+ DBG ( " ifec_mdio_write() time out with val = %X.\n",
+ val );
+ break;
+ }
+ } while (! ( val & 0x10000000 ) );
+ return val & 0xffff;
}
-/* function: eepro100_transmit
- * This transmits a packet.
+/*
+ * Resets the hardware.
*
- * Arguments: char d[6]: destination ethernet address.
- * unsigned short t: ethernet protocol type.
- * unsigned short s: size of the data-part of the packet.
- * char *p: the data for the packet.
- * returns: void.
+ * @v netdev Network device
*/
-
-static void eepro100_transmit(struct nic *nic, const char *d, unsigned int t, unsigned int s, const char *p)
+static void ifec_reset ( struct net_device *netdev )
{
- struct eth_hdr {
- unsigned char dst_addr[ETH_ALEN];
- unsigned char src_addr[ETH_ALEN];
- unsigned short type;
- } hdr;
- unsigned short status;
- int s1, s2;
- unsigned long ct;
-
- status = inw(ioaddr + SCBStatus);
- /* Acknowledge all of the current interrupt sources ASAP. */
- outw(status & 0xfc00, ioaddr + SCBStatus);
-
-#ifdef DEBUG
- printf ("transmitting type %hX packet (%d bytes). status = %hX, cmd=%hX\n",
- t, s, status, inw (ioaddr + SCBCmd));
-#endif
-
- memcpy (&hdr.dst_addr, d, ETH_ALEN);
- memcpy (&hdr.src_addr, nic->node_addr, ETH_ALEN);
-
- hdr.type = htons (t);
-
- txfd.status = 0;
- txfd.command = CmdSuspend | CmdTx | CmdTxFlex;
- txfd.link = virt_to_bus (&txfd);
- txfd.count = 0x02208000;
- txfd.tx_desc_addr = virt_to_bus(&txfd.tx_buf_addr0);
-
- txfd.tx_buf_addr0 = virt_to_bus (&hdr);
- txfd.tx_buf_size0 = sizeof (hdr);
-
- txfd.tx_buf_addr1 = virt_to_bus (p);
- txfd.tx_buf_size1 = s;
-
-#ifdef DEBUG
- printf ("txfd: \n");
- hd (&txfd, sizeof (txfd));
-#endif
-
- outl(virt_to_bus(&txfd), ioaddr + SCBPointer);
- outb(CU_START, ioaddr + SCBCmd);
- wait_for_cmd_done(ioaddr + SCBCmd);
-
- s1 = inw (ioaddr + SCBStatus);
-
- ct = currticks();
- /* timeout 10 ms for transmit */
- while (!txfd.status && ct + 10*1000)
- /* Wait */;
- s2 = inw (ioaddr + SCBStatus);
-
-#ifdef DEBUG
- printf ("s1 = %hX, s2 = %hX.\n", s1, s2);
-#endif
+ struct ifec_private *priv = netdev->priv;
+ unsigned long ioaddr = priv->ioaddr;
+
+ DBGP ( "ifec_reset\n" );
+
+ /* do partial reset first */
+ outl ( PortPartialReset, ioaddr + CSRPort );
+ inw ( ioaddr + SCBStatus );
+ udelay ( 20 );
+
+ /* full reset */
+ outl ( PortReset, ioaddr + CSRPort );
+ inw ( ioaddr + SCBStatus );
+ udelay ( 20 );
+
+ /* disable interrupts again */
+ ifec_net_irq ( netdev, 0 );
}
/*
- * Sometimes the receiver stops making progress. This routine knows how to
- * get it going again, without losing packets or being otherwise nasty like
- * a chip reset would be. Previously the driver had a whole sequence
- * of if RxSuspended, if it's no buffers do one thing, if it's no resources,
- * do another, etc. But those things don't really matter. Separate logic
- * in the ISR provides for allocating buffers--the other half of operation
- * is just making sure the receiver is active. speedo_rx_soft_reset does that.
- * This problem with the old, more involved algorithm is shown up under
- * ping floods on the order of 60K packets/second on a 100Mbps fdx network.
+ * free()s the tx/rx rings.
+ *
+ * @v netdev Network device
*/
-static void
-speedo_rx_soft_reset(void)
+static void ifec_free ( struct net_device *netdev )
{
+ struct ifec_private *priv = netdev_priv ( netdev );
int i;
+ DBGP ( "ifec_free\n" );
-#ifdef DEBUG
- printf("reset\n");
-#endif
- wait_for_cmd_done(ioaddr + SCBCmd);
- /*
- * Put the hardware into a known state.
- */
- outb(RX_ABORT, ioaddr + SCBCmd);
-
- for (i = 0; i < RXFD_COUNT; i++) {
- rxfds[i].status = 0;
- rxfds[i].rx_buf_addr = 0xffffffff;
- rxfds[i].count = 0;
- rxfds[i].size = 1528;
+ /* free all allocated receive io_buffers */
+ for ( i = 0; i < RFD_COUNT; i++ ) {
+ free_iob ( priv->rx_iobs[i] );
+ priv->rx_iobs[i] = NULL;
+ priv->rfds[i] = NULL;
}
- wait_for_cmd_done(ioaddr + SCBCmd);
+ /* free TX ring buffer */
+ free_dma ( priv->tcbs, TX_RING_BYTES );
- outl(virt_to_bus(&rxfds[rxfd]), ioaddr + SCBPointer);
- outb(RX_START, ioaddr + SCBCmd);
+ priv->tcbs = NULL;
}
-/* function: eepro100_poll / eth_poll
- * This receives a packet from the network.
- *
- * Arguments: none
+/*
+ * Initializes an RFD.
*
- * returns: 1 if a packet was received.
- * 0 if no packet was received.
- * side effects:
- * returns the packet in the array nic->packet.
- * returns the length of the packet in nic->packetlen.
+ * @v rfd RFD struct to initialize
+ * @v command Command word
+ * @v link Link value
*/
+static void ifec_rfd_init ( struct ifec_rfd *rfd, s16 command, u32 link )
+{
+ DBGP ( "ifec_rfd_init\n" );
+
+ rfd->status = 0;
+ rfd->command = command;
+ rfd->rx_buf_addr = 0xFFFFFFFF;
+ rfd->count = 0;
+ rfd->size = RFD_PACKET_LEN;
+ rfd->link = link;
+}
-static int eepro100_poll(struct nic *nic, int retrieve)
+/*
+ * Send address of new RFD to card
+ *
+ * @v netdev Network device
+ */
+static void ifec_reprime_ru ( struct net_device *netdev )
{
- if (rxfds[rxfd].status) {
- if (!retrieve)
- return 1;
-#ifdef DEBUG
- printf("Got a packet: Len = %d, rxfd = %d.\n",
- rxfds[rxfd].count & 0x3fff, rxfd);
-#endif
- /* First save the data from the rxfd */
- nic->packetlen = rxfds[rxfd].count & 0x3fff;
- memcpy(nic->packet, rxfds[rxfd].packet, nic->packetlen);
-
- rxfds[rxfd].status = 0;
- rxfds[rxfd].command = 0xc000;
- rxfds[rxfd].rx_buf_addr = 0xFFFFFFFF;
- rxfds[rxfd].count = 0;
- rxfds[rxfd].size = 1528;
- rxfds[(rxfd-1) % RXFD_COUNT].command = 0x0000;
- rxfd = (rxfd+1) % RXFD_COUNT;
-
-#ifdef DEBUG
- hd (nic->packet, 0x30);
-#endif
-
- /* Acknowledge all conceivable interrupts */
- outw(0xff00, ioaddr + SCBStatus);
-
- return 1;
+ struct ifec_private *priv = netdev->priv;
+ int cur_rx = priv->cur_rx;
+
+ DBGP ( "ifec_reprime_ru\n" );
+
+ if ( priv->rfds[cur_rx] != NULL ) {
+ ifec_scb_cmd ( netdev, virt_to_bus ( priv->rfds[cur_rx] ),
+ RUStart );
+ ifec_scb_cmd_wait ( netdev );
}
+}
+
+/*
+ * Check if reprime of RU needed
+ *
+ * @v netdev Network device
+ */
+static void ifec_check_ru_status ( struct net_device *netdev,
+ unsigned short intr_status )
+{
+ struct ifec_private *priv = netdev->priv;
+
+ DBGP ( "ifec_check_ru_status\n" );
/*
- * The chip may have suspended reception for various reasons.
- * Check for that, and re-prime it should this be the case.
- */
- switch ((inw(ioaddr + SCBStatus) >> 2) & 0xf) {
+ * The chip may have suspended reception for various reasons.
+ * Check for that, and re-prime it should this be the case.
+ */
+ switch ( ( intr_status >> 2 ) & 0xf ) {
case 0: /* Idle */
+ case 4: /* Ready */
break;
case 1: /* Suspended */
- case 2: /* No resources (RxFDs) */
+ case 2: /* No resources (RFDs) */
case 9: /* Suspended with no more RBDs */
case 10: /* No resources due to no RBDs */
case 12: /* Ready with no RBDs */
- speedo_rx_soft_reset();
+ DBG ( "ifec_net_poll: RU reprimed.\n" );
+ ifec_reprime_ru ( netdev );
break;
default:
/* reserved values */
+ DBG ( "ifec_net_poll: RU state anomaly: %i\n",
+ ( inw ( priv->ioaddr + SCBStatus ) >> 2 ) & 0xf );
break;
}
- return 0;
}
-/* function: eepro100_disable
- * resets the card. This is used to allow Etherboot or Linux
- * to probe the card again from a "virginal" state....
- * Arguments: none
- *
- * returns: void.
- */
-static void eepro100_disable ( struct nic *nic __unused ) {
-/* from eepro100_reset */
- outl(0, ioaddr + SCBPort);
-/* from eepro100_disable */
- /* See if this PartialReset solves the problem with interfering with
- kernel operation after Etherboot hands over. - Ken 20001102 */
- outl(2, ioaddr + SCBPort);
-
- /* The following is from the Intel e100 driver.
- * This hopefully solves the problem with hanging hard DOS images. */
-
- /* wait for the reset to take effect */
- udelay(20);
-
- /* Mask off our interrupt line -- it is unmasked after reset */
- {
- u16 intr_status;
- /* Disable interrupts on our PCI board by setting the mask bit */
- outw(INT_MASK, ioaddr + SCBCmd);
- intr_status = inw(ioaddr + SCBStatus);
- /* ack and clear intrs */
- outw(intr_status, ioaddr + SCBStatus);
- inw(ioaddr + SCBStatus);
+#define RFD_STATUS ( RFD_OK | RFDRxCol | RFDRxErr | RFDShort | \
+ RFDDMAOverrun | RFDNoBufs | RFDCRCError )
+/*
+ * Looks for received packets in the rx ring, reports success or error to
+ * the core accordingly. Starts reallocation of rx ring.
+ *
+ * @v netdev Network device
+ */
+static void ifec_rx_process ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ int cur_rx = priv->cur_rx;
+ struct io_buffer *iob = priv->rx_iobs[cur_rx];
+ struct ifec_rfd *rfd = priv->rfds[cur_rx];
+ unsigned int rx_len;
+ s16 status;
+
+ DBGP ( "ifec_rx_process\n" );
+
+ /* Process any received packets */
+ while ( iob && rfd && ( status = rfd->status ) ) {
+ rx_len = rfd->count & RFDMaskCount;
+
+ DBG2 ( "Got a packet: Len = %d, cur_rx = %d.\n", rx_len,
+ cur_rx );
+ DBGIO_HD ( (void*)rfd->packet, 0x30 );
+
+ if ( ( status & RFD_STATUS ) != RFD_OK ) {
+ DBG ( "Corrupted packet received. "
+ "Status = %#08hx\n", status );
+ netdev_rx_err ( netdev, iob, -EINVAL );
+ } else {
+ /* Hand off the packet to the network subsystem */
+ iob_put ( iob, rx_len );
+ DBG2 ( "Received packet: %p, len: %d\n", iob, rx_len );
+ netdev_rx ( netdev, iob );
+ }
+
+ /* make sure we don't reuse this RFD */
+ priv->rx_iobs[cur_rx] = NULL;
+ priv->rfds[cur_rx] = NULL;
+
+ /* Next RFD */
+ priv->cur_rx = ( cur_rx + 1 ) % RFD_COUNT;
+ cur_rx = priv->cur_rx;
+ iob = priv->rx_iobs[cur_rx];
+ rfd = priv->rfds[cur_rx];
}
+
+ ifec_refill_rx_ring ( netdev );
}
-/* exported function: eepro100_probe / eth_probe
- * initializes a card
+/*
+ * Allocates io_buffer, set pointers in ifec_private structure accordingly,
+ * reserves space for RFD header in io_buffer.
*
- * side effects:
- * leaves the ioaddress of the 82557 chip in the variable ioaddr.
- * leaves the 82557 initialized, and ready to recieve packets.
+ * @v netdev Network device
+ * @v cur Descriptor number to work on
+ * @v cmd Value to set cmd field in RFD to
+ * @v link Pointer to ned RFD
+ * @ret rc 0 on success, negative on failure
*/
+static int ifec_get_rx_desc ( struct net_device *netdev, int cur, int cmd,
+ int link )
+{
+ struct ifec_private *priv = netdev->priv;
+ struct ifec_rfd *rfd = priv->rfds[cur];
-static int eepro100_probe ( struct nic *nic, struct pci_device *pci ) {
+ DBGP ( "ifec_get_rx_desc\n" );
- unsigned short sum = 0;
- int i;
- int read_cmd, ee_size;
- int options;
- int rx_mode;
- unsigned long ct;
+ priv->rx_iobs[cur] = alloc_iob ( sizeof ( *rfd ) );
+ if ( ! priv->rx_iobs[cur] ) {
+ DBG ( "alloc_iob failed. desc. nr: %d\n", cur );
+ priv->rfds[cur] = NULL;
+ return -ENOMEM;
+ }
- /* we cache only the first few words of the EEPROM data
- be careful not to access beyond this array */
- unsigned short eeprom[16];
+ /* Initialize new tail. */
+ priv->rfds[cur] = priv->rx_iobs[cur]->data;
+ ifec_rfd_init ( priv->rfds[cur], cmd, link );
+ iob_reserve ( priv->rx_iobs[cur], RFD_HEADER_LEN );
- if (pci->ioaddr == 0)
- return 0;
+ return 0;
+}
- adjust_pci_device(pci);
+/*
+ * Allocate new descriptor entries and initialize them if needed
+ *
+ * @v netdev Network device
+ */
+static void ifec_refill_rx_ring ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ int i, cur_rx;
+ unsigned short intr_status;
+
+ DBGP ( "ifec_refill_rx_ring\n" );
+
+ for ( i = 0; i < RFD_COUNT; i++ ) {
+ cur_rx = ( priv->cur_rx + i ) % RFD_COUNT;
+ /* only refill if empty */
+ if ( priv->rfds[cur_rx] != NULL ||
+ priv->rx_iobs[cur_rx] != NULL )
+ continue;
+
+ DBG2 ( "refilling RFD %d\n", cur_rx );
+
+ if ( ifec_get_rx_desc ( netdev, cur_rx,
+ CmdSuspend | CmdEndOfList, 0 ) == 0 ) {
+ if ( i > 0 ) {
+ int prev_rx = ( ( ( cur_rx + RFD_COUNT ) - 1 )
+ % RFD_COUNT );
+ struct ifec_rfd *rfd = priv->rfds[prev_rx];
+
+ rfd->command = 0;
+ rfd->link = virt_to_bus ( priv->rfds[cur_rx] );
+ }
+ }
+ }
- nic->ioaddr = pci->ioaddr;
- nic->irqno = pci->irq;
+ intr_status = inw ( priv->ioaddr + SCBStatus );
+ ifec_check_ru_status ( netdev, intr_status );
+}
- ioaddr = nic->ioaddr;
+/*
+ * Initial allocation & initialization of the rx ring.
+ *
+ * @v netdev Device of rx ring.
+ * @ret rc Non-zero if error occured
+ */
+static int ifec_rx_setup ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ int i;
- if ((do_eeprom_cmd(EE_READ_CMD << 24, 27) & 0xffe0000)
- == 0xffe0000) {
- ee_size = 0x100;
- read_cmd = EE_READ_CMD << 24;
- } else {
- ee_size = 0x40;
- read_cmd = EE_READ_CMD << 22;
- }
+ DBGP ( "ifec_rx_setup\n" );
- for (i = 0, sum = 0; i < ee_size; i++) {
- unsigned short value = do_eeprom_cmd(read_cmd | (i << 16), 27);
- if (i < (int)(sizeof(eeprom)/sizeof(eeprom[0])))
- eeprom[i] = value;
- sum += value;
- }
+ priv->cur_rx = 0;
- for (i=0;i<ETH_ALEN;i++) {
- nic->node_addr[i] = (eeprom[i/2] >> (8*(i&1))) & 0xff;
+ /* init values for ifec_refill_rx_ring() */
+ for ( i = 0; i < RFD_COUNT; i++ ) {
+ priv->rfds[i] = NULL;
+ priv->rx_iobs[i] = NULL;
}
+ ifec_refill_rx_ring ( netdev );
- DBG ( "Ethernet addr: %s\n", eth_ntoa ( nic->node_addr ) );
-
- if (sum != 0xBABA)
- printf("eepro100: Invalid EEPROM checksum %#hX, "
- "check settings before activating this device!\n", sum);
- outl(0, ioaddr + SCBPort);
- udelay (10000);
- whereami ("Got eeprom.");
-
- /* Base = 0, disable all interrupts */
- outl(0, ioaddr + SCBPointer);
- outw(INT_MASK | RX_ADDR_LOAD, ioaddr + SCBCmd);
- wait_for_cmd_done(ioaddr + SCBCmd);
- whereami ("set rx base addr.");
-
- outl(virt_to_bus(&lstats), ioaddr + SCBPointer);
- outb(CU_STATSADDR, ioaddr + SCBCmd);
- wait_for_cmd_done(ioaddr + SCBCmd);
- whereami ("set stats addr.");
-
- /* INIT RX stuff. */
- for (i = 0; i < RXFD_COUNT; i++) {
- rxfds[i].status = 0x0000;
- rxfds[i].command = 0x0000;
- rxfds[i].rx_buf_addr = 0xFFFFFFFF;
- rxfds[i].count = 0;
- rxfds[i].size = 1528;
- rxfds[i].link = virt_to_bus(&rxfds[i+1]);
- }
+ return 0;
+}
+
+/*
+ * Initiates a SCB command.
+ *
+ * @v netdev Network device
+ * @v ptr General pointer value for command.
+ * @v cmd Command to issue.
+ * @ret rc Non-zero if command not issued.
+ */
+static int ifec_scb_cmd ( struct net_device *netdev, u32 ptr, u8 cmd )
+{
+ struct ifec_private *priv = netdev->priv;
+ unsigned long ioaddr = priv->ioaddr;
+ int rc;
- rxfds[RXFD_COUNT-1].status = 0x0000;
- rxfds[RXFD_COUNT-1].command = 0xC000;
- rxfds[RXFD_COUNT-1].link = virt_to_bus(&rxfds[0]);
+ DBGP ( "ifec_scb_cmd\n" );
- outl(virt_to_bus(&rxfds[0]), ioaddr + SCBPointer);
- outb(RX_START, ioaddr + SCBCmd);
- wait_for_cmd_done(ioaddr + SCBCmd);
+ rc = ifec_scb_cmd_wait ( netdev ); /* Wait until ready */
+ if ( !rc ) {
+ outl ( ptr, ioaddr + SCBPointer );
+ outb ( cmd, ioaddr + SCBCmd ); /* Issue command */
+ }
+ return rc;
+}
- whereami ("started RX process.");
+/*
+ * Wait for command unit to accept a command.
+ *
+ * @v cmd_ioaddr I/O address of command register.
+ * @ret rc Non-zero if command timed out.
+ */
+static int ifec_scb_cmd_wait ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ unsigned long cmd_ioaddr = priv->ioaddr + SCBCmd;
+ int rc, wait = CU_CMD_TIMEOUT;
- /* INIT TX stuff. */
+ DBGP ( "ifec_scb_cmd_wait\n" );
- /* Base = 0 */
- outl(0, ioaddr + SCBPointer);
- outb(CU_CMD_BASE, ioaddr + SCBCmd);
- wait_for_cmd_done(ioaddr + SCBCmd);
+ for ( ; wait && ( rc = inb ( cmd_ioaddr ) ); wait-- )
+ udelay ( 1 );
- whereami ("set TX base addr.");
+ if ( !wait )
+ DBG ( "ifec_scb_cmd_wait timeout!\n" );
+ return rc;
+}
- txfd.command = (CmdIASetup);
- txfd.status = 0x0000;
- txfd.link = virt_to_bus (&confcmd);
+/*
+ * Check status of transmitted packets & perform tx completions.
+ *
+ * @v netdev Network device.
+ */
+static void ifec_tx_process ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ struct ifec_tcb *tcb = priv->tcb_tail;
+ s16 status;
+
+ DBGP ( "ifec_tx_process\n" );
+
+ /* Check status of transmitted packets */
+ while ( ( status = tcb->status ) && tcb->iob ) {
+ if ( status & TCB_U ) {
+ /* report error to gPXE */
+ DBG ( "ifec_tx_process : tx error!\n " );
+ netdev_tx_complete_err ( netdev, tcb->iob, -EINVAL );
+ } else {
+ /* report successful transmit */
+ netdev_tx_complete ( netdev, tcb->iob );
+ }
+ DBG2 ( "tx completion\n" );
- {
- char *t = (char *)&txfd.tx_desc_addr;
+ tcb->iob = NULL;
+ tcb->status = 0;
- for (i=0;i<ETH_ALEN;i++)
- t[i] = nic->node_addr[i];
+ priv->tcb_tail = tcb->next; /* Next TCB */
+ tcb = tcb->next;
}
+}
-#ifdef DEBUG
- printf ("Setup_eaddr:\n");
- hd (&txfd, 0x20);
-#endif
- /* options = 0x40; */ /* 10mbps half duplex... */
- options = 0x00; /* Autosense */
-
-#ifdef PROMISC
- rx_mode = 3;
-#elif ALLMULTI
- rx_mode = 1;
-#else
- rx_mode = 0;
-#endif
-
- if ( ((eeprom[6]>>8) & 0x3f) == DP83840
- || ((eeprom[6]>>8) & 0x3f) == DP83840A) {
- int mdi_reg23 = mdio_read(eeprom[6] & 0x1f, 23) | 0x0422;
- if (congenb)
- mdi_reg23 |= 0x0100;
- printf(" DP83840 specific setup, setting register 23 to %hX.\n",
- mdi_reg23);
- mdio_write(eeprom[6] & 0x1f, 23, mdi_reg23);
- }
- whereami ("Done DP8340 special setup.");
- if (options != 0) {
- mdio_write(eeprom[6] & 0x1f, 0,
- ((options & 0x20) ? 0x2000 : 0) | /* 100mbps? */
- ((options & 0x10) ? 0x0100 : 0)); /* Full duplex? */
- whereami ("set mdio_register.");
+/*
+ * Allocates & initialize tx resources.
+ *
+ * @v netdev Network device.
+ * @ret rc Non-zero if error occurred.
+ */
+static int ifec_tx_setup ( struct net_device *netdev )
+{
+ struct ifec_private *priv = netdev->priv;
+ struct ifec_tcb *tcb;
+ int i;
+
+ DBGP ( "ifec_tx_setup\n" );
+
+ /* allocate tx ring */
+ priv->tcbs = malloc_dma ( TX_RING_BYTES, CB_ALIGN );
+ if ( !priv->tcbs ) {
+ DBG ( "TX-ring allocation failed\n" );
+ return -ENOMEM;
}
- confcmd.command = CmdSuspend | CmdConfigure;
- confcmd.status = 0x0000;
- confcmd.link = virt_to_bus (&txfd);
- confcmd.data[1] = (txfifo << 4) | rxfifo;
- confcmd.data[4] = rxdmacount;
- confcmd.data[5] = txdmacount + 0x80;
- confcmd.data[15] = (rx_mode & 2) ? 0x49: 0x48;
- confcmd.data[19] = (options & 0x10) ? 0xC0 : 0x80;
- confcmd.data[21] = (rx_mode & 1) ? 0x0D: 0x05;
-
- outl(virt_to_bus(&txfd), ioaddr + SCBPointer);
- outb(CU_START, ioaddr + SCBCmd);
- wait_for_cmd_done(ioaddr + SCBCmd);
-
- whereami ("started TX thingy (config, iasetup).");
-
- ct = currticks();
- while (!txfd.status && ct + 10*1000 < currticks())
- /* Wait */;
-
- /* Read the status register once to disgard stale data */
- mdio_read(eeprom[6] & 0x1f, 1);
- /* Check to see if the network cable is plugged in.
- * This allows for faster failure if there is nothing
- * we can do.
- */
- if (!(mdio_read(eeprom[6] & 0x1f, 1) & (1 << 2))) {
- printf("Valid link not established\n");
- eepro100_disable(nic);
- return 0;
+ tcb = priv->tcb_tail = priv->tcbs;
+ priv->tx_curr = priv->tx_tail = 0;
+ priv->tx_cnt = 0;
+
+ for ( i = 0; i < TCB_COUNT; i++, tcb++ ) {
+ tcb->status = 0;
+ tcb->count = 0x01208000;
+ tcb->iob = NULL;
+ tcb->tbda_addr = virt_to_bus ( &tcb->tbd_addr0 );
+ tcb->link = virt_to_bus ( tcb + 1 );
+ tcb->next = tcb + 1;
}
- nic->nic_op = &eepro100_operations;
- return 1;
+ /* We point tcb_head at the last TCB, so the first ifec_net_transmit()
+ * will use the first (head->next) TCB to transmit. */
+ priv->tcb_head = --tcb;
+ tcb->link = virt_to_bus ( priv->tcbs );
+ tcb->next = priv->tcbs;
+
+ return 0;
}
-/*********************************************************************/
-
-#ifdef DEBUG
-
-/* Hexdump a number of bytes from memory... */
-void hd (void *where, int n)
+/*
+ * Wake up the Command Unit and issue a Resume/Start.
+ *
+ * @v netdev Network device containing Command Unit
+ *
+ * The time between clearing the S bit and issuing Resume must be as short as
+ * possible to prevent a race condition. As noted in linux eepro100.c :
+ * Note: Watch out for the potential race condition here: imagine
+ * erasing the previous suspend
+ * the chip processes the previous command
+ * the chip processes the final command, and suspends
+ * doing the CU_RESUME
+ * the chip processes the next-yet-valid post-final-command.
+ * So blindly sending a CU_RESUME is only safe if we do it immediately after
+ * erasing the previous CmdSuspend, without the possibility of an intervening
+ * delay.
+ */
+void ifec_tx_wake ( struct net_device *netdev )
{
- int i;
+ struct ifec_private *priv = netdev->priv;
+ unsigned long ioaddr = priv->ioaddr;
+ struct ifec_tcb *tcb = priv->tcb_head->next;
+
+ DBGP ( "ifec_tx_wake\n" );
+
+ /* For the special case of the first transmit, we issue a START. The
+ * card won't RESUME after the configure command. */
+ if ( priv->configured ) {
+ priv->configured = 0;
+ ifec_scb_cmd ( netdev, virt_to_bus ( tcb ), CUStart );
+ ifec_scb_cmd_wait ( netdev );
+ return;
+ }
- while (n > 0) {
- printf ("%X ", where);
- for (i=0;i < ( (n>16)?16:n);i++)
- printf (" %hhX", ((char *)where)[i]);
- printf ("\n");
- n -= 16;
- where += 16;
+ /* Resume if suspended. */
+ switch ( ( inw ( ioaddr + SCBStatus ) >> 6 ) & 0x3 ) {
+ case 0: /* Idle - We should not reach this state. */
+ DBG2 ( "ifec_tx_wake: tx idle!\n" );
+ ifec_scb_cmd ( netdev, virt_to_bus ( tcb ), CUStart );
+ ifec_scb_cmd_wait ( netdev );
+ return;
+ case 1: /* Suspended */
+ DBG2 ( "s" );
+ break;
+ default: /* Active */
+ DBG2 ( "a" );
}
+ ifec_scb_cmd_wait ( netdev );
+ outl ( 0, ioaddr + SCBPointer );
+ priv->tcb_head->command &= ~CmdSuspend;
+ /* Immediately issue Resume command */
+ outb ( CUResume, ioaddr + SCBCmd );
+ ifec_scb_cmd_wait ( netdev );
}
-#endif
-static struct nic_operations eepro100_operations = {
- .connect = dummy_connect,
- .poll = eepro100_poll,
- .transmit = eepro100_transmit,
- .irq = eepro100_irq,
-
-};
+/*********************************************************************/
-static struct pci_device_id eepro100_nics[] = {
-PCI_ROM(0x8086, 0x1029, "id1029", "Intel EtherExpressPro100 ID1029"),
-PCI_ROM(0x8086, 0x1030, "id1030", "Intel EtherExpressPro100 ID1030"),
-PCI_ROM(0x8086, 0x1031, "82801cam", "Intel 82801CAM (ICH3) Chipset Ethernet Controller"),
-PCI_ROM(0x8086, 0x1032, "eepro100-1032", "Intel PRO/100 VE Network Connection"),
-PCI_ROM(0x8086, 0x1033, "eepro100-1033", "Intel PRO/100 VM Network Connection"),
-PCI_ROM(0x8086, 0x1034, "eepro100-1034", "Intel PRO/100 VM Network Connection"),
-PCI_ROM(0x8086, 0x1035, "eepro100-1035", "Intel 82801CAM (ICH3) Chipset Ethernet Controller"),
-PCI_ROM(0x8086, 0x1036, "eepro100-1036", "Intel 82801CAM (ICH3) Chipset Ethernet Controller"),
-PCI_ROM(0x8086, 0x1037, "eepro100-1037", "Intel 82801CAM (ICH3) Chipset Ethernet Controller"),
-PCI_ROM(0x8086, 0x1038, "id1038", "Intel PRO/100 VM Network Connection"),
-PCI_ROM(0x8086, 0x1039, "82562et", "Intel PRO100 VE 82562ET"),
-PCI_ROM(0x8086, 0x103a, "id103a", "Intel Corporation 82559 InBusiness 10/100"),
-PCI_ROM(0x8086, 0x103b, "82562etb", "Intel PRO100 VE 82562ETB"),
-PCI_ROM(0x8086, 0x103c, "eepro100-103c", "Intel PRO/100 VM Network Connection"),
-PCI_ROM(0x8086, 0x103d, "eepro100-103d", "Intel PRO/100 VE Network Connection"),
-PCI_ROM(0x8086, 0x103e, "eepro100-103e", "Intel PRO/100 VM Network Connection"),
-PCI_ROM(0x8086, 0x1051, "prove", "Intel PRO/100 VE Network Connection"),
-PCI_ROM(0x8086, 0x1059, "82551qm", "Intel PRO/100 M Mobile Connection"),
-PCI_ROM(0x8086, 0x1209, "82559er", "Intel EtherExpressPro100 82559ER"),
-PCI_ROM(0x8086, 0x1227, "82865", "Intel 82865 EtherExpress PRO/100A"),
-PCI_ROM(0x8086, 0x1228, "82556", "Intel 82556 EtherExpress PRO/100 Smart"),
-PCI_ROM(0x8086, 0x1229, "eepro100", "Intel EtherExpressPro100"),
-PCI_ROM(0x8086, 0x2449, "82562em", "Intel EtherExpressPro100 82562EM"),
-PCI_ROM(0x8086, 0x2459, "82562-1", "Intel 82562 based Fast Ethernet Connection"),
-PCI_ROM(0x8086, 0x245d, "82562-2", "Intel 82562 based Fast Ethernet Connection"),
-PCI_ROM(0x8086, 0x1050, "82562ez", "Intel 82562EZ Network Connection"),
-PCI_ROM(0x8086, 0x1051, "eepro100-1051", "Intel 82801EB/ER (ICH5/ICH5R) Chipset Ethernet Controller"),
-PCI_ROM(0x8086, 0x1065, "82562-3", "Intel 82562 based Fast Ethernet Connection"),
-PCI_ROM(0x8086, 0x5200, "eepro100-5200", "Intel EtherExpress PRO/100 Intelligent Server"),
-PCI_ROM(0x8086, 0x5201, "eepro100-5201", "Intel EtherExpress PRO/100 Intelligent Server"),
+static struct pci_device_id ifec_nics[] = {
+PCI_ROM(0x8086, 0x1029, "id1029", "Intel EtherExpressPro100 ID1029", 0),
+PCI_ROM(0x8086, 0x1030, "id1030", "Intel EtherExpressPro100 ID1030", 0),
+PCI_ROM(0x8086, 0x1031, "82801cam", "Intel 82801CAM (ICH3) Chipset Ethernet Controller", 0),
+PCI_ROM(0x8086, 0x1032, "eepro100-1032", "Intel PRO/100 VE Network Connection", 0),
+PCI_ROM(0x8086, 0x1033, "eepro100-1033", "Intel PRO/100 VM Network Connection", 0),
+PCI_ROM(0x8086, 0x1034, "eepro100-1034", "Intel PRO/100 VM Network Connection", 0),
+PCI_ROM(0x8086, 0x1035, "eepro100-1035", "Intel 82801CAM (ICH3) Chipset Ethernet Controller", 0),
+PCI_ROM(0x8086, 0x1036, "eepro100-1036", "Intel 82801CAM (ICH3) Chipset Ethernet Controller", 0),
+PCI_ROM(0x8086, 0x1037, "eepro100-1037", "Intel 82801CAM (ICH3) Chipset Ethernet Controller", 0),
+PCI_ROM(0x8086, 0x1038, "id1038", "Intel PRO/100 VM Network Connection", 0),
+PCI_ROM(0x8086, 0x1039, "82562et", "Intel PRO100 VE 82562ET", 0),
+PCI_ROM(0x8086, 0x103a, "id103a", "Intel Corporation 82559 InBusiness 10/100", 0),
+PCI_ROM(0x8086, 0x103b, "82562etb", "Intel PRO100 VE 82562ETB", 0),
+PCI_ROM(0x8086, 0x103c, "eepro100-103c", "Intel PRO/100 VM Network Connection", 0),
+PCI_ROM(0x8086, 0x103d, "eepro100-103d", "Intel PRO/100 VE Network Connection", 0),
+PCI_ROM(0x8086, 0x103e, "eepro100-103e", "Intel PRO/100 VM Network Connection", 0),
+PCI_ROM(0x8086, 0x1051, "prove", "Intel PRO/100 VE Network Connection", 0),
+PCI_ROM(0x8086, 0x1059, "82551qm", "Intel PRO/100 M Mobile Connection", 0),
+PCI_ROM(0x8086, 0x1209, "82559er", "Intel EtherExpressPro100 82559ER", 0),
+PCI_ROM(0x8086, 0x1227, "82865", "Intel 82865 EtherExpress PRO/100A", 0),
+PCI_ROM(0x8086, 0x1228, "82556", "Intel 82556 EtherExpress PRO/100 Smart", 0),
+PCI_ROM(0x8086, 0x1229, "eepro100", "Intel EtherExpressPro100", 0),
+PCI_ROM(0x8086, 0x2449, "82562em", "Intel EtherExpressPro100 82562EM", 0),
+PCI_ROM(0x8086, 0x2459, "82562-1", "Intel 82562 based Fast Ethernet Connection", 0),
+PCI_ROM(0x8086, 0x245d, "82562-2", "Intel 82562 based Fast Ethernet Connection", 0),
+PCI_ROM(0x8086, 0x1050, "82562ez", "Intel 82562EZ Network Connection", 0),
+PCI_ROM(0x8086, 0x1051, "eepro100-1051", "Intel 82801EB/ER (ICH5/ICH5R) Chipset Ethernet Controller", 0),
+PCI_ROM(0x8086, 0x1065, "82562-3", "Intel 82562 based Fast Ethernet Connection", 0),
+PCI_ROM(0x8086, 0x5200, "eepro100-5200", "Intel EtherExpress PRO/100 Intelligent Server", 0),
+PCI_ROM(0x8086, 0x5201, "eepro100-5201", "Intel EtherExpress PRO/100 Intelligent Server", 0),
};
/* Cards with device ids 0x1030 to 0x103F, 0x2449, 0x2459 or 0x245D might need
* a workaround for hardware bug on 10 mbit half duplex (see linux driver eepro100.c)
* 2003/03/17 gbaum */
-
-PCI_DRIVER ( eepro100_driver, eepro100_nics, PCI_NO_CLASS );
-
-DRIVER ( "EEPRO100", nic_driver, pci_driver, eepro100_driver,
- eepro100_probe, eepro100_disable );
+struct pci_driver ifec_driver __pci_driver = {
+ .ids = ifec_nics,
+ .id_count = ( sizeof (ifec_nics) / sizeof (ifec_nics[0]) ),
+ .probe = ifec_pci_probe,
+ .remove = ifec_pci_remove
+};
/*
* Local variables: