2196 lines
53 KiB
C
2196 lines
53 KiB
C
/* de2104x.c: A Linux PCI Ethernet driver for Intel/Digital 21040/1 chips. */
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/*
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Copyright 2001,2003 Jeff Garzik <jgarzik@pobox.com>
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Copyright 1994, 1995 Digital Equipment Corporation. [de4x5.c]
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Written/copyright 1994-2001 by Donald Becker. [tulip.c]
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This software may be used and distributed according to the terms of
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the GNU General Public License (GPL), incorporated herein by reference.
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Drivers based on or derived from this code fall under the GPL and must
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retain the authorship, copyright and license notice. This file is not
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a complete program and may only be used when the entire operating
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system is licensed under the GPL.
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See the file COPYING in this distribution for more information.
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TODO, in rough priority order:
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* Support forcing media type with a module parameter,
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like dl2k.c/sundance.c
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* Constants (module parms?) for Rx work limit
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* Complete reset on PciErr
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* Jumbo frames / dev->change_mtu
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* Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error
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* Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error
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* Implement Tx software interrupt mitigation via
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Tx descriptor bit
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*/
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#define DRV_NAME "de2104x"
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#define DRV_VERSION "0.7"
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#define DRV_RELDATE "Mar 17, 2004"
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/ethtool.h>
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#include <linux/compiler.h>
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#include <linux/rtnetlink.h>
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#include <linux/crc32.h>
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#include <linux/slab.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/uaccess.h>
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#include <asm/unaligned.h>
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/* These identify the driver base version and may not be removed. */
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static char version[] =
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KERN_INFO DRV_NAME " PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n";
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MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
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MODULE_DESCRIPTION("Intel/Digital 21040/1 series PCI Ethernet driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_VERSION);
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static int debug = -1;
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module_param (debug, int, 0);
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MODULE_PARM_DESC (debug, "de2104x bitmapped message enable number");
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/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
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#if defined(__alpha__) || defined(__arm__) || defined(__hppa__) || \
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defined(CONFIG_SPARC) || defined(__ia64__) || \
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defined(__sh__) || defined(__mips__)
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static int rx_copybreak = 1518;
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#else
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static int rx_copybreak = 100;
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#endif
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module_param (rx_copybreak, int, 0);
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MODULE_PARM_DESC (rx_copybreak, "de2104x Breakpoint at which Rx packets are copied");
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#define PFX DRV_NAME ": "
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#define DE_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
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NETIF_MSG_PROBE | \
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NETIF_MSG_LINK | \
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NETIF_MSG_IFDOWN | \
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NETIF_MSG_IFUP | \
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NETIF_MSG_RX_ERR | \
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NETIF_MSG_TX_ERR)
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/* Descriptor skip length in 32 bit longwords. */
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#ifndef CONFIG_DE2104X_DSL
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#define DSL 0
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#else
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#define DSL CONFIG_DE2104X_DSL
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#endif
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#define DE_RX_RING_SIZE 64
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#define DE_TX_RING_SIZE 64
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#define DE_RING_BYTES \
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((sizeof(struct de_desc) * DE_RX_RING_SIZE) + \
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(sizeof(struct de_desc) * DE_TX_RING_SIZE))
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#define NEXT_TX(N) (((N) + 1) & (DE_TX_RING_SIZE - 1))
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#define NEXT_RX(N) (((N) + 1) & (DE_RX_RING_SIZE - 1))
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#define TX_BUFFS_AVAIL(CP) \
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(((CP)->tx_tail <= (CP)->tx_head) ? \
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(CP)->tx_tail + (DE_TX_RING_SIZE - 1) - (CP)->tx_head : \
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(CP)->tx_tail - (CP)->tx_head - 1)
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#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
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#define RX_OFFSET 2
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#define DE_SETUP_SKB ((struct sk_buff *) 1)
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#define DE_DUMMY_SKB ((struct sk_buff *) 2)
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#define DE_SETUP_FRAME_WORDS 96
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#define DE_EEPROM_WORDS 256
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#define DE_EEPROM_SIZE (DE_EEPROM_WORDS * sizeof(u16))
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#define DE_MAX_MEDIA 5
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#define DE_MEDIA_TP_AUTO 0
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#define DE_MEDIA_BNC 1
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#define DE_MEDIA_AUI 2
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#define DE_MEDIA_TP 3
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#define DE_MEDIA_TP_FD 4
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#define DE_MEDIA_INVALID DE_MAX_MEDIA
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#define DE_MEDIA_FIRST 0
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#define DE_MEDIA_LAST (DE_MAX_MEDIA - 1)
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#define DE_AUI_BNC (SUPPORTED_AUI | SUPPORTED_BNC)
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#define DE_TIMER_LINK (60 * HZ)
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#define DE_TIMER_NO_LINK (5 * HZ)
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#define DE_NUM_REGS 16
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#define DE_REGS_SIZE (DE_NUM_REGS * sizeof(u32))
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#define DE_REGS_VER 1
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/* Time in jiffies before concluding the transmitter is hung. */
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#define TX_TIMEOUT (6*HZ)
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/* This is a mysterious value that can be written to CSR11 in the 21040 (only)
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to support a pre-NWay full-duplex signaling mechanism using short frames.
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No one knows what it should be, but if left at its default value some
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10base2(!) packets trigger a full-duplex-request interrupt. */
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#define FULL_DUPLEX_MAGIC 0x6969
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enum {
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/* NIC registers */
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BusMode = 0x00,
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TxPoll = 0x08,
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RxPoll = 0x10,
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RxRingAddr = 0x18,
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TxRingAddr = 0x20,
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MacStatus = 0x28,
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MacMode = 0x30,
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IntrMask = 0x38,
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RxMissed = 0x40,
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ROMCmd = 0x48,
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CSR11 = 0x58,
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SIAStatus = 0x60,
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CSR13 = 0x68,
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CSR14 = 0x70,
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CSR15 = 0x78,
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PCIPM = 0x40,
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/* BusMode bits */
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CmdReset = (1 << 0),
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CacheAlign16 = 0x00008000,
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BurstLen4 = 0x00000400,
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DescSkipLen = (DSL << 2),
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/* Rx/TxPoll bits */
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NormalTxPoll = (1 << 0),
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NormalRxPoll = (1 << 0),
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/* Tx/Rx descriptor status bits */
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DescOwn = (1 << 31),
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RxError = (1 << 15),
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RxErrLong = (1 << 7),
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RxErrCRC = (1 << 1),
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RxErrFIFO = (1 << 0),
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RxErrRunt = (1 << 11),
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RxErrFrame = (1 << 14),
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RingEnd = (1 << 25),
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FirstFrag = (1 << 29),
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LastFrag = (1 << 30),
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TxError = (1 << 15),
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TxFIFOUnder = (1 << 1),
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TxLinkFail = (1 << 2) | (1 << 10) | (1 << 11),
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TxMaxCol = (1 << 8),
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TxOWC = (1 << 9),
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TxJabber = (1 << 14),
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SetupFrame = (1 << 27),
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TxSwInt = (1 << 31),
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/* MacStatus bits */
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IntrOK = (1 << 16),
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IntrErr = (1 << 15),
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RxIntr = (1 << 6),
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RxEmpty = (1 << 7),
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TxIntr = (1 << 0),
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TxEmpty = (1 << 2),
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PciErr = (1 << 13),
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TxState = (1 << 22) | (1 << 21) | (1 << 20),
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RxState = (1 << 19) | (1 << 18) | (1 << 17),
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LinkFail = (1 << 12),
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LinkPass = (1 << 4),
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RxStopped = (1 << 8),
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TxStopped = (1 << 1),
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/* MacMode bits */
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TxEnable = (1 << 13),
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RxEnable = (1 << 1),
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RxTx = TxEnable | RxEnable,
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FullDuplex = (1 << 9),
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AcceptAllMulticast = (1 << 7),
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AcceptAllPhys = (1 << 6),
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BOCnt = (1 << 5),
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MacModeClear = (1<<12) | (1<<11) | (1<<10) | (1<<8) | (1<<3) |
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RxTx | BOCnt | AcceptAllPhys | AcceptAllMulticast,
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/* ROMCmd bits */
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EE_SHIFT_CLK = 0x02, /* EEPROM shift clock. */
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EE_CS = 0x01, /* EEPROM chip select. */
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EE_DATA_WRITE = 0x04, /* Data from the Tulip to EEPROM. */
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EE_WRITE_0 = 0x01,
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EE_WRITE_1 = 0x05,
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EE_DATA_READ = 0x08, /* Data from the EEPROM chip. */
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EE_ENB = (0x4800 | EE_CS),
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/* The EEPROM commands include the alway-set leading bit. */
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EE_READ_CMD = 6,
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/* RxMissed bits */
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RxMissedOver = (1 << 16),
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RxMissedMask = 0xffff,
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/* SROM-related bits */
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SROMC0InfoLeaf = 27,
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MediaBlockMask = 0x3f,
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MediaCustomCSRs = (1 << 6),
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/* PCIPM bits */
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PM_Sleep = (1 << 31),
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PM_Snooze = (1 << 30),
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PM_Mask = PM_Sleep | PM_Snooze,
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/* SIAStatus bits */
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NWayState = (1 << 14) | (1 << 13) | (1 << 12),
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NWayRestart = (1 << 12),
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NonselPortActive = (1 << 9),
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LinkFailStatus = (1 << 2),
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NetCxnErr = (1 << 1),
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};
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static const u32 de_intr_mask =
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IntrOK | IntrErr | RxIntr | RxEmpty | TxIntr | TxEmpty |
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LinkPass | LinkFail | PciErr;
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/*
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* Set the programmable burst length to 4 longwords for all:
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* DMA errors result without these values. Cache align 16 long.
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*/
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static const u32 de_bus_mode = CacheAlign16 | BurstLen4 | DescSkipLen;
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struct de_srom_media_block {
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u8 opts;
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u16 csr13;
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u16 csr14;
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u16 csr15;
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} __packed;
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struct de_srom_info_leaf {
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u16 default_media;
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u8 n_blocks;
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u8 unused;
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} __packed;
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struct de_desc {
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__le32 opts1;
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__le32 opts2;
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__le32 addr1;
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__le32 addr2;
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#if DSL
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__le32 skip[DSL];
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#endif
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};
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struct media_info {
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u16 type; /* DE_MEDIA_xxx */
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u16 csr13;
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u16 csr14;
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u16 csr15;
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};
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struct ring_info {
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struct sk_buff *skb;
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dma_addr_t mapping;
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};
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struct de_private {
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unsigned tx_head;
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unsigned tx_tail;
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unsigned rx_tail;
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void __iomem *regs;
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struct net_device *dev;
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spinlock_t lock;
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struct de_desc *rx_ring;
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struct de_desc *tx_ring;
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struct ring_info tx_skb[DE_TX_RING_SIZE];
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struct ring_info rx_skb[DE_RX_RING_SIZE];
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unsigned rx_buf_sz;
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dma_addr_t ring_dma;
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u32 msg_enable;
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struct net_device_stats net_stats;
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struct pci_dev *pdev;
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u16 setup_frame[DE_SETUP_FRAME_WORDS];
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u32 media_type;
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u32 media_supported;
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u32 media_advertise;
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struct media_info media[DE_MAX_MEDIA];
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struct timer_list media_timer;
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u8 *ee_data;
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unsigned board_idx;
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unsigned de21040 : 1;
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unsigned media_lock : 1;
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};
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static void de_set_rx_mode (struct net_device *dev);
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static void de_tx (struct de_private *de);
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static void de_clean_rings (struct de_private *de);
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static void de_media_interrupt (struct de_private *de, u32 status);
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static void de21040_media_timer (unsigned long data);
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static void de21041_media_timer (unsigned long data);
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static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media);
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static DEFINE_PCI_DEVICE_TABLE(de_pci_tbl) = {
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{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
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{ },
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};
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MODULE_DEVICE_TABLE(pci, de_pci_tbl);
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static const char * const media_name[DE_MAX_MEDIA] = {
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"10baseT auto",
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"BNC",
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"AUI",
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"10baseT-HD",
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"10baseT-FD"
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};
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/* 21040 transceiver register settings:
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* TP AUTO(unused), BNC(unused), AUI, TP, TP FD*/
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static u16 t21040_csr13[] = { 0, 0, 0x8F09, 0x8F01, 0x8F01, };
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static u16 t21040_csr14[] = { 0, 0, 0x0705, 0xFFFF, 0xFFFD, };
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static u16 t21040_csr15[] = { 0, 0, 0x0006, 0x0000, 0x0000, };
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/* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/
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static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
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static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
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static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
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#define dr32(reg) readl(de->regs + (reg))
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#define dw32(reg,val) writel((val), de->regs + (reg))
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static void de_rx_err_acct (struct de_private *de, unsigned rx_tail,
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u32 status, u32 len)
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{
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if (netif_msg_rx_err (de))
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printk (KERN_DEBUG
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"%s: rx err, slot %d status 0x%x len %d\n",
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de->dev->name, rx_tail, status, len);
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if ((status & 0x38000300) != 0x0300) {
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/* Ingore earlier buffers. */
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if ((status & 0xffff) != 0x7fff) {
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if (netif_msg_rx_err(de))
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dev_warn(&de->dev->dev,
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"Oversized Ethernet frame spanned multiple buffers, status %08x!\n",
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status);
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de->net_stats.rx_length_errors++;
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}
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} else if (status & RxError) {
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/* There was a fatal error. */
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de->net_stats.rx_errors++; /* end of a packet.*/
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if (status & 0x0890) de->net_stats.rx_length_errors++;
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if (status & RxErrCRC) de->net_stats.rx_crc_errors++;
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if (status & RxErrFIFO) de->net_stats.rx_fifo_errors++;
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}
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}
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static void de_rx (struct de_private *de)
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{
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unsigned rx_tail = de->rx_tail;
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unsigned rx_work = DE_RX_RING_SIZE;
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unsigned drop = 0;
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int rc;
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while (--rx_work) {
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u32 status, len;
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dma_addr_t mapping;
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struct sk_buff *skb, *copy_skb;
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unsigned copying_skb, buflen;
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skb = de->rx_skb[rx_tail].skb;
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BUG_ON(!skb);
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rmb();
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status = le32_to_cpu(de->rx_ring[rx_tail].opts1);
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if (status & DescOwn)
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break;
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len = ((status >> 16) & 0x7ff) - 4;
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mapping = de->rx_skb[rx_tail].mapping;
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if (unlikely(drop)) {
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de->net_stats.rx_dropped++;
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goto rx_next;
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}
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if (unlikely((status & 0x38008300) != 0x0300)) {
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de_rx_err_acct(de, rx_tail, status, len);
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goto rx_next;
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}
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copying_skb = (len <= rx_copybreak);
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if (unlikely(netif_msg_rx_status(de)))
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printk(KERN_DEBUG "%s: rx slot %d status 0x%x len %d copying? %d\n",
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de->dev->name, rx_tail, status, len,
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copying_skb);
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buflen = copying_skb ? (len + RX_OFFSET) : de->rx_buf_sz;
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copy_skb = dev_alloc_skb (buflen);
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if (unlikely(!copy_skb)) {
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de->net_stats.rx_dropped++;
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drop = 1;
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rx_work = 100;
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goto rx_next;
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}
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if (!copying_skb) {
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pci_unmap_single(de->pdev, mapping,
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buflen, PCI_DMA_FROMDEVICE);
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skb_put(skb, len);
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mapping =
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de->rx_skb[rx_tail].mapping =
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pci_map_single(de->pdev, copy_skb->data,
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buflen, PCI_DMA_FROMDEVICE);
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de->rx_skb[rx_tail].skb = copy_skb;
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} else {
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pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
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skb_reserve(copy_skb, RX_OFFSET);
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skb_copy_from_linear_data(skb, skb_put(copy_skb, len),
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len);
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pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
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/* We'll reuse the original ring buffer. */
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skb = copy_skb;
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}
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skb->protocol = eth_type_trans (skb, de->dev);
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de->net_stats.rx_packets++;
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de->net_stats.rx_bytes += skb->len;
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rc = netif_rx (skb);
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if (rc == NET_RX_DROP)
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drop = 1;
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rx_next:
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if (rx_tail == (DE_RX_RING_SIZE - 1))
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de->rx_ring[rx_tail].opts2 =
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cpu_to_le32(RingEnd | de->rx_buf_sz);
|
|
else
|
|
de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz);
|
|
de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping);
|
|
wmb();
|
|
de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn);
|
|
rx_tail = NEXT_RX(rx_tail);
|
|
}
|
|
|
|
if (!rx_work)
|
|
dev_warn(&de->dev->dev, "rx work limit reached\n");
|
|
|
|
de->rx_tail = rx_tail;
|
|
}
|
|
|
|
static irqreturn_t de_interrupt (int irq, void *dev_instance)
|
|
{
|
|
struct net_device *dev = dev_instance;
|
|
struct de_private *de = netdev_priv(dev);
|
|
u32 status;
|
|
|
|
status = dr32(MacStatus);
|
|
if ((!(status & (IntrOK|IntrErr))) || (status == 0xFFFF))
|
|
return IRQ_NONE;
|
|
|
|
if (netif_msg_intr(de))
|
|
printk(KERN_DEBUG "%s: intr, status %08x mode %08x desc %u/%u/%u\n",
|
|
dev->name, status, dr32(MacMode),
|
|
de->rx_tail, de->tx_head, de->tx_tail);
|
|
|
|
dw32(MacStatus, status);
|
|
|
|
if (status & (RxIntr | RxEmpty)) {
|
|
de_rx(de);
|
|
if (status & RxEmpty)
|
|
dw32(RxPoll, NormalRxPoll);
|
|
}
|
|
|
|
spin_lock(&de->lock);
|
|
|
|
if (status & (TxIntr | TxEmpty))
|
|
de_tx(de);
|
|
|
|
if (status & (LinkPass | LinkFail))
|
|
de_media_interrupt(de, status);
|
|
|
|
spin_unlock(&de->lock);
|
|
|
|
if (status & PciErr) {
|
|
u16 pci_status;
|
|
|
|
pci_read_config_word(de->pdev, PCI_STATUS, &pci_status);
|
|
pci_write_config_word(de->pdev, PCI_STATUS, pci_status);
|
|
dev_err(&de->dev->dev,
|
|
"PCI bus error, status=%08x, PCI status=%04x\n",
|
|
status, pci_status);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void de_tx (struct de_private *de)
|
|
{
|
|
unsigned tx_head = de->tx_head;
|
|
unsigned tx_tail = de->tx_tail;
|
|
|
|
while (tx_tail != tx_head) {
|
|
struct sk_buff *skb;
|
|
u32 status;
|
|
|
|
rmb();
|
|
status = le32_to_cpu(de->tx_ring[tx_tail].opts1);
|
|
if (status & DescOwn)
|
|
break;
|
|
|
|
skb = de->tx_skb[tx_tail].skb;
|
|
BUG_ON(!skb);
|
|
if (unlikely(skb == DE_DUMMY_SKB))
|
|
goto next;
|
|
|
|
if (unlikely(skb == DE_SETUP_SKB)) {
|
|
pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping,
|
|
sizeof(de->setup_frame), PCI_DMA_TODEVICE);
|
|
goto next;
|
|
}
|
|
|
|
pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping,
|
|
skb->len, PCI_DMA_TODEVICE);
|
|
|
|
if (status & LastFrag) {
|
|
if (status & TxError) {
|
|
if (netif_msg_tx_err(de))
|
|
printk(KERN_DEBUG "%s: tx err, status 0x%x\n",
|
|
de->dev->name, status);
|
|
de->net_stats.tx_errors++;
|
|
if (status & TxOWC)
|
|
de->net_stats.tx_window_errors++;
|
|
if (status & TxMaxCol)
|
|
de->net_stats.tx_aborted_errors++;
|
|
if (status & TxLinkFail)
|
|
de->net_stats.tx_carrier_errors++;
|
|
if (status & TxFIFOUnder)
|
|
de->net_stats.tx_fifo_errors++;
|
|
} else {
|
|
de->net_stats.tx_packets++;
|
|
de->net_stats.tx_bytes += skb->len;
|
|
if (netif_msg_tx_done(de))
|
|
printk(KERN_DEBUG "%s: tx done, slot %d\n",
|
|
de->dev->name, tx_tail);
|
|
}
|
|
dev_kfree_skb_irq(skb);
|
|
}
|
|
|
|
next:
|
|
de->tx_skb[tx_tail].skb = NULL;
|
|
|
|
tx_tail = NEXT_TX(tx_tail);
|
|
}
|
|
|
|
de->tx_tail = tx_tail;
|
|
|
|
if (netif_queue_stopped(de->dev) && (TX_BUFFS_AVAIL(de) > (DE_TX_RING_SIZE / 4)))
|
|
netif_wake_queue(de->dev);
|
|
}
|
|
|
|
static netdev_tx_t de_start_xmit (struct sk_buff *skb,
|
|
struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
unsigned int entry, tx_free;
|
|
u32 mapping, len, flags = FirstFrag | LastFrag;
|
|
struct de_desc *txd;
|
|
|
|
spin_lock_irq(&de->lock);
|
|
|
|
tx_free = TX_BUFFS_AVAIL(de);
|
|
if (tx_free == 0) {
|
|
netif_stop_queue(dev);
|
|
spin_unlock_irq(&de->lock);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
tx_free--;
|
|
|
|
entry = de->tx_head;
|
|
|
|
txd = &de->tx_ring[entry];
|
|
|
|
len = skb->len;
|
|
mapping = pci_map_single(de->pdev, skb->data, len, PCI_DMA_TODEVICE);
|
|
if (entry == (DE_TX_RING_SIZE - 1))
|
|
flags |= RingEnd;
|
|
if (!tx_free || (tx_free == (DE_TX_RING_SIZE / 2)))
|
|
flags |= TxSwInt;
|
|
flags |= len;
|
|
txd->opts2 = cpu_to_le32(flags);
|
|
txd->addr1 = cpu_to_le32(mapping);
|
|
|
|
de->tx_skb[entry].skb = skb;
|
|
de->tx_skb[entry].mapping = mapping;
|
|
wmb();
|
|
|
|
txd->opts1 = cpu_to_le32(DescOwn);
|
|
wmb();
|
|
|
|
de->tx_head = NEXT_TX(entry);
|
|
if (netif_msg_tx_queued(de))
|
|
printk(KERN_DEBUG "%s: tx queued, slot %d, skblen %d\n",
|
|
dev->name, entry, skb->len);
|
|
|
|
if (tx_free == 0)
|
|
netif_stop_queue(dev);
|
|
|
|
spin_unlock_irq(&de->lock);
|
|
|
|
/* Trigger an immediate transmit demand. */
|
|
dw32(TxPoll, NormalTxPoll);
|
|
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
/* Set or clear the multicast filter for this adaptor.
|
|
Note that we only use exclusion around actually queueing the
|
|
new frame, not around filling de->setup_frame. This is non-deterministic
|
|
when re-entered but still correct. */
|
|
|
|
#undef set_bit_le
|
|
#define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0)
|
|
|
|
static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
u16 hash_table[32];
|
|
struct netdev_hw_addr *ha;
|
|
int i;
|
|
u16 *eaddrs;
|
|
|
|
memset(hash_table, 0, sizeof(hash_table));
|
|
set_bit_le(255, hash_table); /* Broadcast entry */
|
|
/* This should work on big-endian machines as well. */
|
|
netdev_for_each_mc_addr(ha, dev) {
|
|
int index = ether_crc_le(ETH_ALEN, ha->addr) & 0x1ff;
|
|
|
|
set_bit_le(index, hash_table);
|
|
}
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
*setup_frm++ = hash_table[i];
|
|
*setup_frm++ = hash_table[i];
|
|
}
|
|
setup_frm = &de->setup_frame[13*6];
|
|
|
|
/* Fill the final entry with our physical address. */
|
|
eaddrs = (u16 *)dev->dev_addr;
|
|
*setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
|
|
*setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
|
|
*setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
|
|
}
|
|
|
|
static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
struct netdev_hw_addr *ha;
|
|
u16 *eaddrs;
|
|
|
|
/* We have <= 14 addresses so we can use the wonderful
|
|
16 address perfect filtering of the Tulip. */
|
|
netdev_for_each_mc_addr(ha, dev) {
|
|
eaddrs = (u16 *) ha->addr;
|
|
*setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
|
|
*setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
|
|
*setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
|
|
}
|
|
/* Fill the unused entries with the broadcast address. */
|
|
memset(setup_frm, 0xff, (15 - netdev_mc_count(dev)) * 12);
|
|
setup_frm = &de->setup_frame[15*6];
|
|
|
|
/* Fill the final entry with our physical address. */
|
|
eaddrs = (u16 *)dev->dev_addr;
|
|
*setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
|
|
*setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
|
|
*setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
|
|
}
|
|
|
|
|
|
static void __de_set_rx_mode (struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
u32 macmode;
|
|
unsigned int entry;
|
|
u32 mapping;
|
|
struct de_desc *txd;
|
|
struct de_desc *dummy_txd = NULL;
|
|
|
|
macmode = dr32(MacMode) & ~(AcceptAllMulticast | AcceptAllPhys);
|
|
|
|
if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
|
|
macmode |= AcceptAllMulticast | AcceptAllPhys;
|
|
goto out;
|
|
}
|
|
|
|
if ((netdev_mc_count(dev) > 1000) || (dev->flags & IFF_ALLMULTI)) {
|
|
/* Too many to filter well -- accept all multicasts. */
|
|
macmode |= AcceptAllMulticast;
|
|
goto out;
|
|
}
|
|
|
|
/* Note that only the low-address shortword of setup_frame is valid!
|
|
The values are doubled for big-endian architectures. */
|
|
if (netdev_mc_count(dev) > 14) /* Must use a multicast hash table. */
|
|
build_setup_frame_hash (de->setup_frame, dev);
|
|
else
|
|
build_setup_frame_perfect (de->setup_frame, dev);
|
|
|
|
/*
|
|
* Now add this frame to the Tx list.
|
|
*/
|
|
|
|
entry = de->tx_head;
|
|
|
|
/* Avoid a chip errata by prefixing a dummy entry. */
|
|
if (entry != 0) {
|
|
de->tx_skb[entry].skb = DE_DUMMY_SKB;
|
|
|
|
dummy_txd = &de->tx_ring[entry];
|
|
dummy_txd->opts2 = (entry == (DE_TX_RING_SIZE - 1)) ?
|
|
cpu_to_le32(RingEnd) : 0;
|
|
dummy_txd->addr1 = 0;
|
|
|
|
/* Must set DescOwned later to avoid race with chip */
|
|
|
|
entry = NEXT_TX(entry);
|
|
}
|
|
|
|
de->tx_skb[entry].skb = DE_SETUP_SKB;
|
|
de->tx_skb[entry].mapping = mapping =
|
|
pci_map_single (de->pdev, de->setup_frame,
|
|
sizeof (de->setup_frame), PCI_DMA_TODEVICE);
|
|
|
|
/* Put the setup frame on the Tx list. */
|
|
txd = &de->tx_ring[entry];
|
|
if (entry == (DE_TX_RING_SIZE - 1))
|
|
txd->opts2 = cpu_to_le32(SetupFrame | RingEnd | sizeof (de->setup_frame));
|
|
else
|
|
txd->opts2 = cpu_to_le32(SetupFrame | sizeof (de->setup_frame));
|
|
txd->addr1 = cpu_to_le32(mapping);
|
|
wmb();
|
|
|
|
txd->opts1 = cpu_to_le32(DescOwn);
|
|
wmb();
|
|
|
|
if (dummy_txd) {
|
|
dummy_txd->opts1 = cpu_to_le32(DescOwn);
|
|
wmb();
|
|
}
|
|
|
|
de->tx_head = NEXT_TX(entry);
|
|
|
|
if (TX_BUFFS_AVAIL(de) == 0)
|
|
netif_stop_queue(dev);
|
|
|
|
/* Trigger an immediate transmit demand. */
|
|
dw32(TxPoll, NormalTxPoll);
|
|
|
|
out:
|
|
if (macmode != dr32(MacMode))
|
|
dw32(MacMode, macmode);
|
|
}
|
|
|
|
static void de_set_rx_mode (struct net_device *dev)
|
|
{
|
|
unsigned long flags;
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
spin_lock_irqsave (&de->lock, flags);
|
|
__de_set_rx_mode(dev);
|
|
spin_unlock_irqrestore (&de->lock, flags);
|
|
}
|
|
|
|
static inline void de_rx_missed(struct de_private *de, u32 rx_missed)
|
|
{
|
|
if (unlikely(rx_missed & RxMissedOver))
|
|
de->net_stats.rx_missed_errors += RxMissedMask;
|
|
else
|
|
de->net_stats.rx_missed_errors += (rx_missed & RxMissedMask);
|
|
}
|
|
|
|
static void __de_get_stats(struct de_private *de)
|
|
{
|
|
u32 tmp = dr32(RxMissed); /* self-clearing */
|
|
|
|
de_rx_missed(de, tmp);
|
|
}
|
|
|
|
static struct net_device_stats *de_get_stats(struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
/* The chip only need report frame silently dropped. */
|
|
spin_lock_irq(&de->lock);
|
|
if (netif_running(dev) && netif_device_present(dev))
|
|
__de_get_stats(de);
|
|
spin_unlock_irq(&de->lock);
|
|
|
|
return &de->net_stats;
|
|
}
|
|
|
|
static inline int de_is_running (struct de_private *de)
|
|
{
|
|
return (dr32(MacStatus) & (RxState | TxState)) ? 1 : 0;
|
|
}
|
|
|
|
static void de_stop_rxtx (struct de_private *de)
|
|
{
|
|
u32 macmode;
|
|
unsigned int i = 1300/100;
|
|
|
|
macmode = dr32(MacMode);
|
|
if (macmode & RxTx) {
|
|
dw32(MacMode, macmode & ~RxTx);
|
|
dr32(MacMode);
|
|
}
|
|
|
|
/* wait until in-flight frame completes.
|
|
* Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin)
|
|
* Typically expect this loop to end in < 50 us on 100BT.
|
|
*/
|
|
while (--i) {
|
|
if (!de_is_running(de))
|
|
return;
|
|
udelay(100);
|
|
}
|
|
|
|
dev_warn(&de->dev->dev, "timeout expired stopping DMA\n");
|
|
}
|
|
|
|
static inline void de_start_rxtx (struct de_private *de)
|
|
{
|
|
u32 macmode;
|
|
|
|
macmode = dr32(MacMode);
|
|
if ((macmode & RxTx) != RxTx) {
|
|
dw32(MacMode, macmode | RxTx);
|
|
dr32(MacMode);
|
|
}
|
|
}
|
|
|
|
static void de_stop_hw (struct de_private *de)
|
|
{
|
|
|
|
udelay(5);
|
|
dw32(IntrMask, 0);
|
|
|
|
de_stop_rxtx(de);
|
|
|
|
dw32(MacStatus, dr32(MacStatus));
|
|
|
|
udelay(10);
|
|
|
|
de->rx_tail = 0;
|
|
de->tx_head = de->tx_tail = 0;
|
|
}
|
|
|
|
static void de_link_up(struct de_private *de)
|
|
{
|
|
if (!netif_carrier_ok(de->dev)) {
|
|
netif_carrier_on(de->dev);
|
|
if (netif_msg_link(de))
|
|
dev_info(&de->dev->dev, "link up, media %s\n",
|
|
media_name[de->media_type]);
|
|
}
|
|
}
|
|
|
|
static void de_link_down(struct de_private *de)
|
|
{
|
|
if (netif_carrier_ok(de->dev)) {
|
|
netif_carrier_off(de->dev);
|
|
if (netif_msg_link(de))
|
|
dev_info(&de->dev->dev, "link down\n");
|
|
}
|
|
}
|
|
|
|
static void de_set_media (struct de_private *de)
|
|
{
|
|
unsigned media = de->media_type;
|
|
u32 macmode = dr32(MacMode);
|
|
|
|
if (de_is_running(de))
|
|
dev_warn(&de->dev->dev,
|
|
"chip is running while changing media!\n");
|
|
|
|
if (de->de21040)
|
|
dw32(CSR11, FULL_DUPLEX_MAGIC);
|
|
dw32(CSR13, 0); /* Reset phy */
|
|
dw32(CSR14, de->media[media].csr14);
|
|
dw32(CSR15, de->media[media].csr15);
|
|
dw32(CSR13, de->media[media].csr13);
|
|
|
|
/* must delay 10ms before writing to other registers,
|
|
* especially CSR6
|
|
*/
|
|
mdelay(10);
|
|
|
|
if (media == DE_MEDIA_TP_FD)
|
|
macmode |= FullDuplex;
|
|
else
|
|
macmode &= ~FullDuplex;
|
|
|
|
if (netif_msg_link(de)) {
|
|
dev_info(&de->dev->dev, "set link %s\n", media_name[media]);
|
|
dev_info(&de->dev->dev, "mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n",
|
|
dr32(MacMode), dr32(SIAStatus),
|
|
dr32(CSR13), dr32(CSR14), dr32(CSR15));
|
|
|
|
dev_info(&de->dev->dev,
|
|
"set mode 0x%x, set sia 0x%x,0x%x,0x%x\n",
|
|
macmode, de->media[media].csr13,
|
|
de->media[media].csr14, de->media[media].csr15);
|
|
}
|
|
if (macmode != dr32(MacMode))
|
|
dw32(MacMode, macmode);
|
|
}
|
|
|
|
static void de_next_media (struct de_private *de, u32 *media,
|
|
unsigned int n_media)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < n_media; i++) {
|
|
if (de_ok_to_advertise(de, media[i])) {
|
|
de->media_type = media[i];
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void de21040_media_timer (unsigned long data)
|
|
{
|
|
struct de_private *de = (struct de_private *) data;
|
|
struct net_device *dev = de->dev;
|
|
u32 status = dr32(SIAStatus);
|
|
unsigned int carrier;
|
|
unsigned long flags;
|
|
|
|
carrier = (status & NetCxnErr) ? 0 : 1;
|
|
|
|
if (carrier) {
|
|
if (de->media_type != DE_MEDIA_AUI && (status & LinkFailStatus))
|
|
goto no_link_yet;
|
|
|
|
de->media_timer.expires = jiffies + DE_TIMER_LINK;
|
|
add_timer(&de->media_timer);
|
|
if (!netif_carrier_ok(dev))
|
|
de_link_up(de);
|
|
else
|
|
if (netif_msg_timer(de))
|
|
dev_info(&dev->dev, "%s link ok, status %x\n",
|
|
media_name[de->media_type], status);
|
|
return;
|
|
}
|
|
|
|
de_link_down(de);
|
|
|
|
if (de->media_lock)
|
|
return;
|
|
|
|
if (de->media_type == DE_MEDIA_AUI) {
|
|
u32 next_state = DE_MEDIA_TP;
|
|
de_next_media(de, &next_state, 1);
|
|
} else {
|
|
u32 next_state = DE_MEDIA_AUI;
|
|
de_next_media(de, &next_state, 1);
|
|
}
|
|
|
|
spin_lock_irqsave(&de->lock, flags);
|
|
de_stop_rxtx(de);
|
|
spin_unlock_irqrestore(&de->lock, flags);
|
|
de_set_media(de);
|
|
de_start_rxtx(de);
|
|
|
|
no_link_yet:
|
|
de->media_timer.expires = jiffies + DE_TIMER_NO_LINK;
|
|
add_timer(&de->media_timer);
|
|
|
|
if (netif_msg_timer(de))
|
|
dev_info(&dev->dev, "no link, trying media %s, status %x\n",
|
|
media_name[de->media_type], status);
|
|
}
|
|
|
|
static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media)
|
|
{
|
|
switch (new_media) {
|
|
case DE_MEDIA_TP_AUTO:
|
|
if (!(de->media_advertise & ADVERTISED_Autoneg))
|
|
return 0;
|
|
if (!(de->media_advertise & (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full)))
|
|
return 0;
|
|
break;
|
|
case DE_MEDIA_BNC:
|
|
if (!(de->media_advertise & ADVERTISED_BNC))
|
|
return 0;
|
|
break;
|
|
case DE_MEDIA_AUI:
|
|
if (!(de->media_advertise & ADVERTISED_AUI))
|
|
return 0;
|
|
break;
|
|
case DE_MEDIA_TP:
|
|
if (!(de->media_advertise & ADVERTISED_10baseT_Half))
|
|
return 0;
|
|
break;
|
|
case DE_MEDIA_TP_FD:
|
|
if (!(de->media_advertise & ADVERTISED_10baseT_Full))
|
|
return 0;
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void de21041_media_timer (unsigned long data)
|
|
{
|
|
struct de_private *de = (struct de_private *) data;
|
|
struct net_device *dev = de->dev;
|
|
u32 status = dr32(SIAStatus);
|
|
unsigned int carrier;
|
|
unsigned long flags;
|
|
|
|
carrier = (status & NetCxnErr) ? 0 : 1;
|
|
|
|
if (carrier) {
|
|
if ((de->media_type == DE_MEDIA_TP_AUTO ||
|
|
de->media_type == DE_MEDIA_TP ||
|
|
de->media_type == DE_MEDIA_TP_FD) &&
|
|
(status & LinkFailStatus))
|
|
goto no_link_yet;
|
|
|
|
de->media_timer.expires = jiffies + DE_TIMER_LINK;
|
|
add_timer(&de->media_timer);
|
|
if (!netif_carrier_ok(dev))
|
|
de_link_up(de);
|
|
else
|
|
if (netif_msg_timer(de))
|
|
dev_info(&dev->dev,
|
|
"%s link ok, mode %x status %x\n",
|
|
media_name[de->media_type],
|
|
dr32(MacMode), status);
|
|
return;
|
|
}
|
|
|
|
de_link_down(de);
|
|
|
|
/* if media type locked, don't switch media */
|
|
if (de->media_lock)
|
|
goto set_media;
|
|
|
|
/* if activity detected, use that as hint for new media type */
|
|
if (status & NonselPortActive) {
|
|
unsigned int have_media = 1;
|
|
|
|
/* if AUI/BNC selected, then activity is on TP port */
|
|
if (de->media_type == DE_MEDIA_AUI ||
|
|
de->media_type == DE_MEDIA_BNC) {
|
|
if (de_ok_to_advertise(de, DE_MEDIA_TP_AUTO))
|
|
de->media_type = DE_MEDIA_TP_AUTO;
|
|
else
|
|
have_media = 0;
|
|
}
|
|
|
|
/* TP selected. If there is only TP and BNC, then it's BNC */
|
|
else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_BNC) &&
|
|
de_ok_to_advertise(de, DE_MEDIA_BNC))
|
|
de->media_type = DE_MEDIA_BNC;
|
|
|
|
/* TP selected. If there is only TP and AUI, then it's AUI */
|
|
else if (((de->media_supported & DE_AUI_BNC) == SUPPORTED_AUI) &&
|
|
de_ok_to_advertise(de, DE_MEDIA_AUI))
|
|
de->media_type = DE_MEDIA_AUI;
|
|
|
|
/* otherwise, ignore the hint */
|
|
else
|
|
have_media = 0;
|
|
|
|
if (have_media)
|
|
goto set_media;
|
|
}
|
|
|
|
/*
|
|
* Absent or ambiguous activity hint, move to next advertised
|
|
* media state. If de->media_type is left unchanged, this
|
|
* simply resets the PHY and reloads the current media settings.
|
|
*/
|
|
if (de->media_type == DE_MEDIA_AUI) {
|
|
u32 next_states[] = { DE_MEDIA_BNC, DE_MEDIA_TP_AUTO };
|
|
de_next_media(de, next_states, ARRAY_SIZE(next_states));
|
|
} else if (de->media_type == DE_MEDIA_BNC) {
|
|
u32 next_states[] = { DE_MEDIA_TP_AUTO, DE_MEDIA_AUI };
|
|
de_next_media(de, next_states, ARRAY_SIZE(next_states));
|
|
} else {
|
|
u32 next_states[] = { DE_MEDIA_AUI, DE_MEDIA_BNC, DE_MEDIA_TP_AUTO };
|
|
de_next_media(de, next_states, ARRAY_SIZE(next_states));
|
|
}
|
|
|
|
set_media:
|
|
spin_lock_irqsave(&de->lock, flags);
|
|
de_stop_rxtx(de);
|
|
spin_unlock_irqrestore(&de->lock, flags);
|
|
de_set_media(de);
|
|
de_start_rxtx(de);
|
|
|
|
no_link_yet:
|
|
de->media_timer.expires = jiffies + DE_TIMER_NO_LINK;
|
|
add_timer(&de->media_timer);
|
|
|
|
if (netif_msg_timer(de))
|
|
dev_info(&dev->dev, "no link, trying media %s, status %x\n",
|
|
media_name[de->media_type], status);
|
|
}
|
|
|
|
static void de_media_interrupt (struct de_private *de, u32 status)
|
|
{
|
|
if (status & LinkPass) {
|
|
de_link_up(de);
|
|
mod_timer(&de->media_timer, jiffies + DE_TIMER_LINK);
|
|
return;
|
|
}
|
|
|
|
BUG_ON(!(status & LinkFail));
|
|
|
|
if (netif_carrier_ok(de->dev)) {
|
|
de_link_down(de);
|
|
mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK);
|
|
}
|
|
}
|
|
|
|
static int de_reset_mac (struct de_private *de)
|
|
{
|
|
u32 status, tmp;
|
|
|
|
/*
|
|
* Reset MAC. de4x5.c and tulip.c examined for "advice"
|
|
* in this area.
|
|
*/
|
|
|
|
if (dr32(BusMode) == 0xffffffff)
|
|
return -EBUSY;
|
|
|
|
/* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
|
|
dw32 (BusMode, CmdReset);
|
|
mdelay (1);
|
|
|
|
dw32 (BusMode, de_bus_mode);
|
|
mdelay (1);
|
|
|
|
for (tmp = 0; tmp < 5; tmp++) {
|
|
dr32 (BusMode);
|
|
mdelay (1);
|
|
}
|
|
|
|
mdelay (1);
|
|
|
|
status = dr32(MacStatus);
|
|
if (status & (RxState | TxState))
|
|
return -EBUSY;
|
|
if (status == 0xffffffff)
|
|
return -ENODEV;
|
|
return 0;
|
|
}
|
|
|
|
static void de_adapter_wake (struct de_private *de)
|
|
{
|
|
u32 pmctl;
|
|
|
|
if (de->de21040)
|
|
return;
|
|
|
|
pci_read_config_dword(de->pdev, PCIPM, &pmctl);
|
|
if (pmctl & PM_Mask) {
|
|
pmctl &= ~PM_Mask;
|
|
pci_write_config_dword(de->pdev, PCIPM, pmctl);
|
|
|
|
/* de4x5.c delays, so we do too */
|
|
msleep(10);
|
|
}
|
|
}
|
|
|
|
static void de_adapter_sleep (struct de_private *de)
|
|
{
|
|
u32 pmctl;
|
|
|
|
if (de->de21040)
|
|
return;
|
|
|
|
pci_read_config_dword(de->pdev, PCIPM, &pmctl);
|
|
pmctl |= PM_Sleep;
|
|
pci_write_config_dword(de->pdev, PCIPM, pmctl);
|
|
}
|
|
|
|
static int de_init_hw (struct de_private *de)
|
|
{
|
|
struct net_device *dev = de->dev;
|
|
u32 macmode;
|
|
int rc;
|
|
|
|
de_adapter_wake(de);
|
|
|
|
macmode = dr32(MacMode) & ~MacModeClear;
|
|
|
|
rc = de_reset_mac(de);
|
|
if (rc)
|
|
return rc;
|
|
|
|
de_set_media(de); /* reset phy */
|
|
|
|
dw32(RxRingAddr, de->ring_dma);
|
|
dw32(TxRingAddr, de->ring_dma + (sizeof(struct de_desc) * DE_RX_RING_SIZE));
|
|
|
|
dw32(MacMode, RxTx | macmode);
|
|
|
|
dr32(RxMissed); /* self-clearing */
|
|
|
|
dw32(IntrMask, de_intr_mask);
|
|
|
|
de_set_rx_mode(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int de_refill_rx (struct de_private *de)
|
|
{
|
|
unsigned i;
|
|
|
|
for (i = 0; i < DE_RX_RING_SIZE; i++) {
|
|
struct sk_buff *skb;
|
|
|
|
skb = dev_alloc_skb(de->rx_buf_sz);
|
|
if (!skb)
|
|
goto err_out;
|
|
|
|
skb->dev = de->dev;
|
|
|
|
de->rx_skb[i].mapping = pci_map_single(de->pdev,
|
|
skb->data, de->rx_buf_sz, PCI_DMA_FROMDEVICE);
|
|
de->rx_skb[i].skb = skb;
|
|
|
|
de->rx_ring[i].opts1 = cpu_to_le32(DescOwn);
|
|
if (i == (DE_RX_RING_SIZE - 1))
|
|
de->rx_ring[i].opts2 =
|
|
cpu_to_le32(RingEnd | de->rx_buf_sz);
|
|
else
|
|
de->rx_ring[i].opts2 = cpu_to_le32(de->rx_buf_sz);
|
|
de->rx_ring[i].addr1 = cpu_to_le32(de->rx_skb[i].mapping);
|
|
de->rx_ring[i].addr2 = 0;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
de_clean_rings(de);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static int de_init_rings (struct de_private *de)
|
|
{
|
|
memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE);
|
|
de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd);
|
|
|
|
de->rx_tail = 0;
|
|
de->tx_head = de->tx_tail = 0;
|
|
|
|
return de_refill_rx (de);
|
|
}
|
|
|
|
static int de_alloc_rings (struct de_private *de)
|
|
{
|
|
de->rx_ring = pci_alloc_consistent(de->pdev, DE_RING_BYTES, &de->ring_dma);
|
|
if (!de->rx_ring)
|
|
return -ENOMEM;
|
|
de->tx_ring = &de->rx_ring[DE_RX_RING_SIZE];
|
|
return de_init_rings(de);
|
|
}
|
|
|
|
static void de_clean_rings (struct de_private *de)
|
|
{
|
|
unsigned i;
|
|
|
|
memset(de->rx_ring, 0, sizeof(struct de_desc) * DE_RX_RING_SIZE);
|
|
de->rx_ring[DE_RX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd);
|
|
wmb();
|
|
memset(de->tx_ring, 0, sizeof(struct de_desc) * DE_TX_RING_SIZE);
|
|
de->tx_ring[DE_TX_RING_SIZE - 1].opts2 = cpu_to_le32(RingEnd);
|
|
wmb();
|
|
|
|
for (i = 0; i < DE_RX_RING_SIZE; i++) {
|
|
if (de->rx_skb[i].skb) {
|
|
pci_unmap_single(de->pdev, de->rx_skb[i].mapping,
|
|
de->rx_buf_sz, PCI_DMA_FROMDEVICE);
|
|
dev_kfree_skb(de->rx_skb[i].skb);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < DE_TX_RING_SIZE; i++) {
|
|
struct sk_buff *skb = de->tx_skb[i].skb;
|
|
if ((skb) && (skb != DE_DUMMY_SKB)) {
|
|
if (skb != DE_SETUP_SKB) {
|
|
de->net_stats.tx_dropped++;
|
|
pci_unmap_single(de->pdev,
|
|
de->tx_skb[i].mapping,
|
|
skb->len, PCI_DMA_TODEVICE);
|
|
dev_kfree_skb(skb);
|
|
} else {
|
|
pci_unmap_single(de->pdev,
|
|
de->tx_skb[i].mapping,
|
|
sizeof(de->setup_frame),
|
|
PCI_DMA_TODEVICE);
|
|
}
|
|
}
|
|
}
|
|
|
|
memset(&de->rx_skb, 0, sizeof(struct ring_info) * DE_RX_RING_SIZE);
|
|
memset(&de->tx_skb, 0, sizeof(struct ring_info) * DE_TX_RING_SIZE);
|
|
}
|
|
|
|
static void de_free_rings (struct de_private *de)
|
|
{
|
|
de_clean_rings(de);
|
|
pci_free_consistent(de->pdev, DE_RING_BYTES, de->rx_ring, de->ring_dma);
|
|
de->rx_ring = NULL;
|
|
de->tx_ring = NULL;
|
|
}
|
|
|
|
static int de_open (struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
int rc;
|
|
|
|
if (netif_msg_ifup(de))
|
|
printk(KERN_DEBUG "%s: enabling interface\n", dev->name);
|
|
|
|
de->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
|
|
|
|
rc = de_alloc_rings(de);
|
|
if (rc) {
|
|
dev_err(&dev->dev, "ring allocation failure, err=%d\n", rc);
|
|
return rc;
|
|
}
|
|
|
|
dw32(IntrMask, 0);
|
|
|
|
rc = request_irq(dev->irq, de_interrupt, IRQF_SHARED, dev->name, dev);
|
|
if (rc) {
|
|
dev_err(&dev->dev, "IRQ %d request failure, err=%d\n",
|
|
dev->irq, rc);
|
|
goto err_out_free;
|
|
}
|
|
|
|
rc = de_init_hw(de);
|
|
if (rc) {
|
|
dev_err(&dev->dev, "h/w init failure, err=%d\n", rc);
|
|
goto err_out_free_irq;
|
|
}
|
|
|
|
netif_start_queue(dev);
|
|
mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK);
|
|
|
|
return 0;
|
|
|
|
err_out_free_irq:
|
|
free_irq(dev->irq, dev);
|
|
err_out_free:
|
|
de_free_rings(de);
|
|
return rc;
|
|
}
|
|
|
|
static int de_close (struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
unsigned long flags;
|
|
|
|
if (netif_msg_ifdown(de))
|
|
printk(KERN_DEBUG "%s: disabling interface\n", dev->name);
|
|
|
|
del_timer_sync(&de->media_timer);
|
|
|
|
spin_lock_irqsave(&de->lock, flags);
|
|
de_stop_hw(de);
|
|
netif_stop_queue(dev);
|
|
netif_carrier_off(dev);
|
|
spin_unlock_irqrestore(&de->lock, flags);
|
|
|
|
free_irq(dev->irq, dev);
|
|
|
|
de_free_rings(de);
|
|
de_adapter_sleep(de);
|
|
return 0;
|
|
}
|
|
|
|
static void de_tx_timeout (struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
printk(KERN_DEBUG "%s: NIC status %08x mode %08x sia %08x desc %u/%u/%u\n",
|
|
dev->name, dr32(MacStatus), dr32(MacMode), dr32(SIAStatus),
|
|
de->rx_tail, de->tx_head, de->tx_tail);
|
|
|
|
del_timer_sync(&de->media_timer);
|
|
|
|
disable_irq(dev->irq);
|
|
spin_lock_irq(&de->lock);
|
|
|
|
de_stop_hw(de);
|
|
netif_stop_queue(dev);
|
|
netif_carrier_off(dev);
|
|
|
|
spin_unlock_irq(&de->lock);
|
|
enable_irq(dev->irq);
|
|
|
|
/* Update the error counts. */
|
|
__de_get_stats(de);
|
|
|
|
synchronize_irq(dev->irq);
|
|
de_clean_rings(de);
|
|
|
|
de_init_rings(de);
|
|
|
|
de_init_hw(de);
|
|
|
|
netif_wake_queue(dev);
|
|
}
|
|
|
|
static void __de_get_regs(struct de_private *de, u8 *buf)
|
|
{
|
|
int i;
|
|
u32 *rbuf = (u32 *)buf;
|
|
|
|
/* read all CSRs */
|
|
for (i = 0; i < DE_NUM_REGS; i++)
|
|
rbuf[i] = dr32(i * 8);
|
|
|
|
/* handle self-clearing RxMissed counter, CSR8 */
|
|
de_rx_missed(de, rbuf[8]);
|
|
}
|
|
|
|
static int __de_get_settings(struct de_private *de, struct ethtool_cmd *ecmd)
|
|
{
|
|
ecmd->supported = de->media_supported;
|
|
ecmd->transceiver = XCVR_INTERNAL;
|
|
ecmd->phy_address = 0;
|
|
ecmd->advertising = de->media_advertise;
|
|
|
|
switch (de->media_type) {
|
|
case DE_MEDIA_AUI:
|
|
ecmd->port = PORT_AUI;
|
|
ecmd->speed = 5;
|
|
break;
|
|
case DE_MEDIA_BNC:
|
|
ecmd->port = PORT_BNC;
|
|
ecmd->speed = 2;
|
|
break;
|
|
default:
|
|
ecmd->port = PORT_TP;
|
|
ecmd->speed = SPEED_10;
|
|
break;
|
|
}
|
|
|
|
if (dr32(MacMode) & FullDuplex)
|
|
ecmd->duplex = DUPLEX_FULL;
|
|
else
|
|
ecmd->duplex = DUPLEX_HALF;
|
|
|
|
if (de->media_lock)
|
|
ecmd->autoneg = AUTONEG_DISABLE;
|
|
else
|
|
ecmd->autoneg = AUTONEG_ENABLE;
|
|
|
|
/* ignore maxtxpkt, maxrxpkt for now */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __de_set_settings(struct de_private *de, struct ethtool_cmd *ecmd)
|
|
{
|
|
u32 new_media;
|
|
unsigned int media_lock;
|
|
|
|
if (ecmd->speed != SPEED_10 && ecmd->speed != 5 && ecmd->speed != 2)
|
|
return -EINVAL;
|
|
if (de->de21040 && ecmd->speed == 2)
|
|
return -EINVAL;
|
|
if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
|
|
return -EINVAL;
|
|
if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI && ecmd->port != PORT_BNC)
|
|
return -EINVAL;
|
|
if (de->de21040 && ecmd->port == PORT_BNC)
|
|
return -EINVAL;
|
|
if (ecmd->transceiver != XCVR_INTERNAL)
|
|
return -EINVAL;
|
|
if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
|
|
return -EINVAL;
|
|
if (ecmd->advertising & ~de->media_supported)
|
|
return -EINVAL;
|
|
if (ecmd->autoneg == AUTONEG_ENABLE &&
|
|
(!(ecmd->advertising & ADVERTISED_Autoneg)))
|
|
return -EINVAL;
|
|
|
|
switch (ecmd->port) {
|
|
case PORT_AUI:
|
|
new_media = DE_MEDIA_AUI;
|
|
if (!(ecmd->advertising & ADVERTISED_AUI))
|
|
return -EINVAL;
|
|
break;
|
|
case PORT_BNC:
|
|
new_media = DE_MEDIA_BNC;
|
|
if (!(ecmd->advertising & ADVERTISED_BNC))
|
|
return -EINVAL;
|
|
break;
|
|
default:
|
|
if (ecmd->autoneg == AUTONEG_ENABLE)
|
|
new_media = DE_MEDIA_TP_AUTO;
|
|
else if (ecmd->duplex == DUPLEX_FULL)
|
|
new_media = DE_MEDIA_TP_FD;
|
|
else
|
|
new_media = DE_MEDIA_TP;
|
|
if (!(ecmd->advertising & ADVERTISED_TP))
|
|
return -EINVAL;
|
|
if (!(ecmd->advertising & (ADVERTISED_10baseT_Full | ADVERTISED_10baseT_Half)))
|
|
return -EINVAL;
|
|
break;
|
|
}
|
|
|
|
media_lock = (ecmd->autoneg == AUTONEG_ENABLE) ? 0 : 1;
|
|
|
|
if ((new_media == de->media_type) &&
|
|
(media_lock == de->media_lock) &&
|
|
(ecmd->advertising == de->media_advertise))
|
|
return 0; /* nothing to change */
|
|
|
|
de_link_down(de);
|
|
de_stop_rxtx(de);
|
|
|
|
de->media_type = new_media;
|
|
de->media_lock = media_lock;
|
|
de->media_advertise = ecmd->advertising;
|
|
de_set_media(de);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void de_get_drvinfo (struct net_device *dev,struct ethtool_drvinfo *info)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
strcpy (info->driver, DRV_NAME);
|
|
strcpy (info->version, DRV_VERSION);
|
|
strcpy (info->bus_info, pci_name(de->pdev));
|
|
info->eedump_len = DE_EEPROM_SIZE;
|
|
}
|
|
|
|
static int de_get_regs_len(struct net_device *dev)
|
|
{
|
|
return DE_REGS_SIZE;
|
|
}
|
|
|
|
static int de_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
int rc;
|
|
|
|
spin_lock_irq(&de->lock);
|
|
rc = __de_get_settings(de, ecmd);
|
|
spin_unlock_irq(&de->lock);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int de_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
int rc;
|
|
|
|
spin_lock_irq(&de->lock);
|
|
rc = __de_set_settings(de, ecmd);
|
|
spin_unlock_irq(&de->lock);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static u32 de_get_msglevel(struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
return de->msg_enable;
|
|
}
|
|
|
|
static void de_set_msglevel(struct net_device *dev, u32 msglvl)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
de->msg_enable = msglvl;
|
|
}
|
|
|
|
static int de_get_eeprom(struct net_device *dev,
|
|
struct ethtool_eeprom *eeprom, u8 *data)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
if (!de->ee_data)
|
|
return -EOPNOTSUPP;
|
|
if ((eeprom->offset != 0) || (eeprom->magic != 0) ||
|
|
(eeprom->len != DE_EEPROM_SIZE))
|
|
return -EINVAL;
|
|
memcpy(data, de->ee_data, eeprom->len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int de_nway_reset(struct net_device *dev)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
u32 status;
|
|
|
|
if (de->media_type != DE_MEDIA_TP_AUTO)
|
|
return -EINVAL;
|
|
if (netif_carrier_ok(de->dev))
|
|
de_link_down(de);
|
|
|
|
status = dr32(SIAStatus);
|
|
dw32(SIAStatus, (status & ~NWayState) | NWayRestart);
|
|
if (netif_msg_link(de))
|
|
dev_info(&de->dev->dev, "link nway restart, status %x,%x\n",
|
|
status, dr32(SIAStatus));
|
|
return 0;
|
|
}
|
|
|
|
static void de_get_regs(struct net_device *dev, struct ethtool_regs *regs,
|
|
void *data)
|
|
{
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
regs->version = (DE_REGS_VER << 2) | de->de21040;
|
|
|
|
spin_lock_irq(&de->lock);
|
|
__de_get_regs(de, data);
|
|
spin_unlock_irq(&de->lock);
|
|
}
|
|
|
|
static const struct ethtool_ops de_ethtool_ops = {
|
|
.get_link = ethtool_op_get_link,
|
|
.get_drvinfo = de_get_drvinfo,
|
|
.get_regs_len = de_get_regs_len,
|
|
.get_settings = de_get_settings,
|
|
.set_settings = de_set_settings,
|
|
.get_msglevel = de_get_msglevel,
|
|
.set_msglevel = de_set_msglevel,
|
|
.get_eeprom = de_get_eeprom,
|
|
.nway_reset = de_nway_reset,
|
|
.get_regs = de_get_regs,
|
|
};
|
|
|
|
static void __devinit de21040_get_mac_address (struct de_private *de)
|
|
{
|
|
unsigned i;
|
|
|
|
dw32 (ROMCmd, 0); /* Reset the pointer with a dummy write. */
|
|
udelay(5);
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
int value, boguscnt = 100000;
|
|
do {
|
|
value = dr32(ROMCmd);
|
|
} while (value < 0 && --boguscnt > 0);
|
|
de->dev->dev_addr[i] = value;
|
|
udelay(1);
|
|
if (boguscnt <= 0)
|
|
pr_warning(PFX "timeout reading 21040 MAC address byte %u\n", i);
|
|
}
|
|
}
|
|
|
|
static void __devinit de21040_get_media_info(struct de_private *de)
|
|
{
|
|
unsigned int i;
|
|
|
|
de->media_type = DE_MEDIA_TP;
|
|
de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full |
|
|
SUPPORTED_10baseT_Half | SUPPORTED_AUI;
|
|
de->media_advertise = de->media_supported;
|
|
|
|
for (i = 0; i < DE_MAX_MEDIA; i++) {
|
|
switch (i) {
|
|
case DE_MEDIA_AUI:
|
|
case DE_MEDIA_TP:
|
|
case DE_MEDIA_TP_FD:
|
|
de->media[i].type = i;
|
|
de->media[i].csr13 = t21040_csr13[i];
|
|
de->media[i].csr14 = t21040_csr14[i];
|
|
de->media[i].csr15 = t21040_csr15[i];
|
|
break;
|
|
default:
|
|
de->media[i].type = DE_MEDIA_INVALID;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Note: this routine returns extra data bits for size detection. */
|
|
static unsigned __devinit tulip_read_eeprom(void __iomem *regs, int location, int addr_len)
|
|
{
|
|
int i;
|
|
unsigned retval = 0;
|
|
void __iomem *ee_addr = regs + ROMCmd;
|
|
int read_cmd = location | (EE_READ_CMD << addr_len);
|
|
|
|
writel(EE_ENB & ~EE_CS, ee_addr);
|
|
writel(EE_ENB, ee_addr);
|
|
|
|
/* Shift the read command bits out. */
|
|
for (i = 4 + addr_len; i >= 0; i--) {
|
|
short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
|
|
writel(EE_ENB | dataval, ee_addr);
|
|
readl(ee_addr);
|
|
writel(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
|
|
readl(ee_addr);
|
|
retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0);
|
|
}
|
|
writel(EE_ENB, ee_addr);
|
|
readl(ee_addr);
|
|
|
|
for (i = 16; i > 0; i--) {
|
|
writel(EE_ENB | EE_SHIFT_CLK, ee_addr);
|
|
readl(ee_addr);
|
|
retval = (retval << 1) | ((readl(ee_addr) & EE_DATA_READ) ? 1 : 0);
|
|
writel(EE_ENB, ee_addr);
|
|
readl(ee_addr);
|
|
}
|
|
|
|
/* Terminate the EEPROM access. */
|
|
writel(EE_ENB & ~EE_CS, ee_addr);
|
|
return retval;
|
|
}
|
|
|
|
static void __devinit de21041_get_srom_info (struct de_private *de)
|
|
{
|
|
unsigned i, sa_offset = 0, ofs;
|
|
u8 ee_data[DE_EEPROM_SIZE + 6] = {};
|
|
unsigned ee_addr_size = tulip_read_eeprom(de->regs, 0xff, 8) & 0x40000 ? 8 : 6;
|
|
struct de_srom_info_leaf *il;
|
|
void *bufp;
|
|
|
|
/* download entire eeprom */
|
|
for (i = 0; i < DE_EEPROM_WORDS; i++)
|
|
((__le16 *)ee_data)[i] =
|
|
cpu_to_le16(tulip_read_eeprom(de->regs, i, ee_addr_size));
|
|
|
|
/* DEC now has a specification but early board makers
|
|
just put the address in the first EEPROM locations. */
|
|
/* This does memcmp(eedata, eedata+16, 8) */
|
|
|
|
#ifndef CONFIG_MIPS_COBALT
|
|
|
|
for (i = 0; i < 8; i ++)
|
|
if (ee_data[i] != ee_data[16+i])
|
|
sa_offset = 20;
|
|
|
|
#endif
|
|
|
|
/* store MAC address */
|
|
for (i = 0; i < 6; i ++)
|
|
de->dev->dev_addr[i] = ee_data[i + sa_offset];
|
|
|
|
/* get offset of controller 0 info leaf. ignore 2nd byte. */
|
|
ofs = ee_data[SROMC0InfoLeaf];
|
|
if (ofs >= (sizeof(ee_data) - sizeof(struct de_srom_info_leaf) - sizeof(struct de_srom_media_block)))
|
|
goto bad_srom;
|
|
|
|
/* get pointer to info leaf */
|
|
il = (struct de_srom_info_leaf *) &ee_data[ofs];
|
|
|
|
/* paranoia checks */
|
|
if (il->n_blocks == 0)
|
|
goto bad_srom;
|
|
if ((sizeof(ee_data) - ofs) <
|
|
(sizeof(struct de_srom_info_leaf) + (sizeof(struct de_srom_media_block) * il->n_blocks)))
|
|
goto bad_srom;
|
|
|
|
/* get default media type */
|
|
switch (get_unaligned(&il->default_media)) {
|
|
case 0x0001: de->media_type = DE_MEDIA_BNC; break;
|
|
case 0x0002: de->media_type = DE_MEDIA_AUI; break;
|
|
case 0x0204: de->media_type = DE_MEDIA_TP_FD; break;
|
|
default: de->media_type = DE_MEDIA_TP_AUTO; break;
|
|
}
|
|
|
|
if (netif_msg_probe(de))
|
|
pr_info("de%d: SROM leaf offset %u, default media %s\n",
|
|
de->board_idx, ofs, media_name[de->media_type]);
|
|
|
|
/* init SIA register values to defaults */
|
|
for (i = 0; i < DE_MAX_MEDIA; i++) {
|
|
de->media[i].type = DE_MEDIA_INVALID;
|
|
de->media[i].csr13 = 0xffff;
|
|
de->media[i].csr14 = 0xffff;
|
|
de->media[i].csr15 = 0xffff;
|
|
}
|
|
|
|
/* parse media blocks to see what medias are supported,
|
|
* and if any custom CSR values are provided
|
|
*/
|
|
bufp = ((void *)il) + sizeof(*il);
|
|
for (i = 0; i < il->n_blocks; i++) {
|
|
struct de_srom_media_block *ib = bufp;
|
|
unsigned idx;
|
|
|
|
/* index based on media type in media block */
|
|
switch(ib->opts & MediaBlockMask) {
|
|
case 0: /* 10baseT */
|
|
de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half
|
|
| SUPPORTED_Autoneg;
|
|
idx = DE_MEDIA_TP;
|
|
de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO;
|
|
break;
|
|
case 1: /* BNC */
|
|
de->media_supported |= SUPPORTED_BNC;
|
|
idx = DE_MEDIA_BNC;
|
|
break;
|
|
case 2: /* AUI */
|
|
de->media_supported |= SUPPORTED_AUI;
|
|
idx = DE_MEDIA_AUI;
|
|
break;
|
|
case 4: /* 10baseT-FD */
|
|
de->media_supported |= SUPPORTED_TP | SUPPORTED_10baseT_Full
|
|
| SUPPORTED_Autoneg;
|
|
idx = DE_MEDIA_TP_FD;
|
|
de->media[DE_MEDIA_TP_AUTO].type = DE_MEDIA_TP_AUTO;
|
|
break;
|
|
default:
|
|
goto bad_srom;
|
|
}
|
|
|
|
de->media[idx].type = idx;
|
|
|
|
if (netif_msg_probe(de))
|
|
pr_info("de%d: media block #%u: %s",
|
|
de->board_idx, i,
|
|
media_name[de->media[idx].type]);
|
|
|
|
bufp += sizeof (ib->opts);
|
|
|
|
if (ib->opts & MediaCustomCSRs) {
|
|
de->media[idx].csr13 = get_unaligned(&ib->csr13);
|
|
de->media[idx].csr14 = get_unaligned(&ib->csr14);
|
|
de->media[idx].csr15 = get_unaligned(&ib->csr15);
|
|
bufp += sizeof(ib->csr13) + sizeof(ib->csr14) +
|
|
sizeof(ib->csr15);
|
|
|
|
if (netif_msg_probe(de))
|
|
pr_cont(" (%x,%x,%x)\n",
|
|
de->media[idx].csr13,
|
|
de->media[idx].csr14,
|
|
de->media[idx].csr15);
|
|
|
|
} else if (netif_msg_probe(de))
|
|
pr_cont("\n");
|
|
|
|
if (bufp > ((void *)&ee_data[DE_EEPROM_SIZE - 3]))
|
|
break;
|
|
}
|
|
|
|
de->media_advertise = de->media_supported;
|
|
|
|
fill_defaults:
|
|
/* fill in defaults, for cases where custom CSRs not used */
|
|
for (i = 0; i < DE_MAX_MEDIA; i++) {
|
|
if (de->media[i].csr13 == 0xffff)
|
|
de->media[i].csr13 = t21041_csr13[i];
|
|
if (de->media[i].csr14 == 0xffff)
|
|
de->media[i].csr14 = t21041_csr14[i];
|
|
if (de->media[i].csr15 == 0xffff)
|
|
de->media[i].csr15 = t21041_csr15[i];
|
|
}
|
|
|
|
de->ee_data = kmemdup(&ee_data[0], DE_EEPROM_SIZE, GFP_KERNEL);
|
|
|
|
return;
|
|
|
|
bad_srom:
|
|
/* for error cases, it's ok to assume we support all these */
|
|
for (i = 0; i < DE_MAX_MEDIA; i++)
|
|
de->media[i].type = i;
|
|
de->media_supported =
|
|
SUPPORTED_10baseT_Half |
|
|
SUPPORTED_10baseT_Full |
|
|
SUPPORTED_Autoneg |
|
|
SUPPORTED_TP |
|
|
SUPPORTED_AUI |
|
|
SUPPORTED_BNC;
|
|
goto fill_defaults;
|
|
}
|
|
|
|
static const struct net_device_ops de_netdev_ops = {
|
|
.ndo_open = de_open,
|
|
.ndo_stop = de_close,
|
|
.ndo_set_multicast_list = de_set_rx_mode,
|
|
.ndo_start_xmit = de_start_xmit,
|
|
.ndo_get_stats = de_get_stats,
|
|
.ndo_tx_timeout = de_tx_timeout,
|
|
.ndo_change_mtu = eth_change_mtu,
|
|
.ndo_set_mac_address = eth_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
};
|
|
|
|
static int __devinit de_init_one (struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
struct net_device *dev;
|
|
struct de_private *de;
|
|
int rc;
|
|
void __iomem *regs;
|
|
unsigned long pciaddr;
|
|
static int board_idx = -1;
|
|
|
|
board_idx++;
|
|
|
|
#ifndef MODULE
|
|
if (board_idx == 0)
|
|
printk("%s", version);
|
|
#endif
|
|
|
|
/* allocate a new ethernet device structure, and fill in defaults */
|
|
dev = alloc_etherdev(sizeof(struct de_private));
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
|
|
dev->netdev_ops = &de_netdev_ops;
|
|
SET_NETDEV_DEV(dev, &pdev->dev);
|
|
dev->ethtool_ops = &de_ethtool_ops;
|
|
dev->watchdog_timeo = TX_TIMEOUT;
|
|
|
|
de = netdev_priv(dev);
|
|
de->de21040 = ent->driver_data == 0 ? 1 : 0;
|
|
de->pdev = pdev;
|
|
de->dev = dev;
|
|
de->msg_enable = (debug < 0 ? DE_DEF_MSG_ENABLE : debug);
|
|
de->board_idx = board_idx;
|
|
spin_lock_init (&de->lock);
|
|
init_timer(&de->media_timer);
|
|
if (de->de21040)
|
|
de->media_timer.function = de21040_media_timer;
|
|
else
|
|
de->media_timer.function = de21041_media_timer;
|
|
de->media_timer.data = (unsigned long) de;
|
|
|
|
netif_carrier_off(dev);
|
|
netif_stop_queue(dev);
|
|
|
|
/* wake up device, assign resources */
|
|
rc = pci_enable_device(pdev);
|
|
if (rc)
|
|
goto err_out_free;
|
|
|
|
/* reserve PCI resources to ensure driver atomicity */
|
|
rc = pci_request_regions(pdev, DRV_NAME);
|
|
if (rc)
|
|
goto err_out_disable;
|
|
|
|
/* check for invalid IRQ value */
|
|
if (pdev->irq < 2) {
|
|
rc = -EIO;
|
|
pr_err(PFX "invalid irq (%d) for pci dev %s\n",
|
|
pdev->irq, pci_name(pdev));
|
|
goto err_out_res;
|
|
}
|
|
|
|
dev->irq = pdev->irq;
|
|
|
|
/* obtain and check validity of PCI I/O address */
|
|
pciaddr = pci_resource_start(pdev, 1);
|
|
if (!pciaddr) {
|
|
rc = -EIO;
|
|
pr_err(PFX "no MMIO resource for pci dev %s\n", pci_name(pdev));
|
|
goto err_out_res;
|
|
}
|
|
if (pci_resource_len(pdev, 1) < DE_REGS_SIZE) {
|
|
rc = -EIO;
|
|
pr_err(PFX "MMIO resource (%llx) too small on pci dev %s\n",
|
|
(unsigned long long)pci_resource_len(pdev, 1),
|
|
pci_name(pdev));
|
|
goto err_out_res;
|
|
}
|
|
|
|
/* remap CSR registers */
|
|
regs = ioremap_nocache(pciaddr, DE_REGS_SIZE);
|
|
if (!regs) {
|
|
rc = -EIO;
|
|
pr_err(PFX "Cannot map PCI MMIO (%llx@%lx) on pci dev %s\n",
|
|
(unsigned long long)pci_resource_len(pdev, 1),
|
|
pciaddr, pci_name(pdev));
|
|
goto err_out_res;
|
|
}
|
|
dev->base_addr = (unsigned long) regs;
|
|
de->regs = regs;
|
|
|
|
de_adapter_wake(de);
|
|
|
|
/* make sure hardware is not running */
|
|
rc = de_reset_mac(de);
|
|
if (rc) {
|
|
pr_err(PFX "Cannot reset MAC, pci dev %s\n", pci_name(pdev));
|
|
goto err_out_iomap;
|
|
}
|
|
|
|
/* get MAC address, initialize default media type and
|
|
* get list of supported media
|
|
*/
|
|
if (de->de21040) {
|
|
de21040_get_mac_address(de);
|
|
de21040_get_media_info(de);
|
|
} else {
|
|
de21041_get_srom_info(de);
|
|
}
|
|
|
|
/* register new network interface with kernel */
|
|
rc = register_netdev(dev);
|
|
if (rc)
|
|
goto err_out_iomap;
|
|
|
|
/* print info about board and interface just registered */
|
|
dev_info(&dev->dev, "%s at 0x%lx, %pM, IRQ %d\n",
|
|
de->de21040 ? "21040" : "21041",
|
|
dev->base_addr,
|
|
dev->dev_addr,
|
|
dev->irq);
|
|
|
|
pci_set_drvdata(pdev, dev);
|
|
|
|
/* enable busmastering */
|
|
pci_set_master(pdev);
|
|
|
|
/* put adapter to sleep */
|
|
de_adapter_sleep(de);
|
|
|
|
return 0;
|
|
|
|
err_out_iomap:
|
|
kfree(de->ee_data);
|
|
iounmap(regs);
|
|
err_out_res:
|
|
pci_release_regions(pdev);
|
|
err_out_disable:
|
|
pci_disable_device(pdev);
|
|
err_out_free:
|
|
free_netdev(dev);
|
|
return rc;
|
|
}
|
|
|
|
static void __devexit de_remove_one (struct pci_dev *pdev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
BUG_ON(!dev);
|
|
unregister_netdev(dev);
|
|
kfree(de->ee_data);
|
|
iounmap(de->regs);
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
free_netdev(dev);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
static int de_suspend (struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata (pdev);
|
|
struct de_private *de = netdev_priv(dev);
|
|
|
|
rtnl_lock();
|
|
if (netif_running (dev)) {
|
|
del_timer_sync(&de->media_timer);
|
|
|
|
disable_irq(dev->irq);
|
|
spin_lock_irq(&de->lock);
|
|
|
|
de_stop_hw(de);
|
|
netif_stop_queue(dev);
|
|
netif_device_detach(dev);
|
|
netif_carrier_off(dev);
|
|
|
|
spin_unlock_irq(&de->lock);
|
|
enable_irq(dev->irq);
|
|
|
|
/* Update the error counts. */
|
|
__de_get_stats(de);
|
|
|
|
synchronize_irq(dev->irq);
|
|
de_clean_rings(de);
|
|
|
|
de_adapter_sleep(de);
|
|
pci_disable_device(pdev);
|
|
} else {
|
|
netif_device_detach(dev);
|
|
}
|
|
rtnl_unlock();
|
|
return 0;
|
|
}
|
|
|
|
static int de_resume (struct pci_dev *pdev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata (pdev);
|
|
struct de_private *de = netdev_priv(dev);
|
|
int retval = 0;
|
|
|
|
rtnl_lock();
|
|
if (netif_device_present(dev))
|
|
goto out;
|
|
if (!netif_running(dev))
|
|
goto out_attach;
|
|
if ((retval = pci_enable_device(pdev))) {
|
|
dev_err(&dev->dev, "pci_enable_device failed in resume\n");
|
|
goto out;
|
|
}
|
|
de_init_hw(de);
|
|
out_attach:
|
|
netif_device_attach(dev);
|
|
out:
|
|
rtnl_unlock();
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct pci_driver de_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = de_pci_tbl,
|
|
.probe = de_init_one,
|
|
.remove = __devexit_p(de_remove_one),
|
|
#ifdef CONFIG_PM
|
|
.suspend = de_suspend,
|
|
.resume = de_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init de_init (void)
|
|
{
|
|
#ifdef MODULE
|
|
printk("%s", version);
|
|
#endif
|
|
return pci_register_driver(&de_driver);
|
|
}
|
|
|
|
static void __exit de_exit (void)
|
|
{
|
|
pci_unregister_driver (&de_driver);
|
|
}
|
|
|
|
module_init(de_init);
|
|
module_exit(de_exit);
|