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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-05-20 07:15:19 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-12 00:21:25 -0700
commita88394cfb58007cca945699545469017beb0d206 (patch)
tree7efa1efcaf18d1b8f7bede1f25acdfc0c657c086 /drivers/net/tulip/de2104x.c
parent5ff2241dd42ade03572753f9ed7743719b47c474 (diff)
ewrk3/tulip: Move the DEC - Tulip drivers
Move the DEC - Tulip driver into drivers/net/ethernet/dec/tulip/ and make the necessary Kconfig and Makefile changes. The Digital Equioment (DEC) driver ewrk3 was moved into drivers/net/ethernet/dec/ and the remaining drivers (Tulip) were moved into drivers/net/ethernet/dec/tulip/ CC: Tobias Ringstrom <tori@unhappy.mine.nu> CC: Grant Grundler <grundler@parisc-linux.org> CC: David Davies <davies@maniac.ultranet.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Grant Grundler <grundler@parisc-linux.org>
Diffstat (limited to 'drivers/net/tulip/de2104x.c')
-rw-r--r--drivers/net/tulip/de2104x.c2215
1 files changed, 0 insertions, 2215 deletions
diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
deleted file mode 100644
index ce90efc6ba3c..000000000000
--- a/drivers/net/tulip/de2104x.c
+++ /dev/null
@@ -1,2215 +0,0 @@
-/* de2104x.c: A Linux PCI Ethernet driver for Intel/Digital 21040/1 chips. */
-/*
- Copyright 2001,2003 Jeff Garzik <jgarzik@pobox.com>
-
- Copyright 1994, 1995 Digital Equipment Corporation. [de4x5.c]
- Written/copyright 1994-2001 by Donald Becker. [tulip.c]
-
- This software may be used and distributed according to the terms of
- the GNU General Public License (GPL), incorporated herein by reference.
- Drivers based on or derived from this code fall under the GPL and must
- retain the authorship, copyright and license notice. This file is not
- a complete program and may only be used when the entire operating
- system is licensed under the GPL.
-
- See the file COPYING in this distribution for more information.
-
- TODO, in rough priority order:
- * Support forcing media type with a module parameter,
- like dl2k.c/sundance.c
- * Constants (module parms?) for Rx work limit
- * Complete reset on PciErr
- * Jumbo frames / dev->change_mtu
- * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error
- * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error
- * Implement Tx software interrupt mitigation via
- Tx descriptor bit
-
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#define DRV_NAME "de2104x"
-#define DRV_VERSION "0.7"
-#define DRV_RELDATE "Mar 17, 2004"
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/compiler.h>
-#include <linux/rtnetlink.h>
-#include <linux/crc32.h>
-#include <linux/slab.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/unaligned.h>
-
-/* These identify the driver base version and may not be removed. */
-static char version[] =
-"PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")";
-
-MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
-MODULE_DESCRIPTION("Intel/Digital 21040/1 series PCI Ethernet driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-
-static int debug = -1;
-module_param (debug, int, 0);
-MODULE_PARM_DESC (debug, "de2104x bitmapped message enable number");
-
-/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
-#if defined(__alpha__) || defined(__arm__) || defined(__hppa__) || \
- defined(CONFIG_SPARC) || defined(__ia64__) || \
- defined(__sh__) || defined(__mips__)
-static int rx_copybreak = 1518;
-#else
-static int rx_copybreak = 100;
-#endif
-module_param (rx_copybreak, int, 0);
-MODULE_PARM_DESC (rx_copybreak, "de2104x Breakpoint at which Rx packets are copied");
-
-#define DE_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
- NETIF_MSG_PROBE | \
- NETIF_MSG_LINK | \
- NETIF_MSG_IFDOWN | \
- NETIF_MSG_IFUP | \
- NETIF_MSG_RX_ERR | \
- NETIF_MSG_TX_ERR)
-
-/* Descriptor skip length in 32 bit longwords. */
-#ifndef CONFIG_DE2104X_DSL
-#define DSL 0
-#else
-#define DSL CONFIG_DE2104X_DSL
-#endif
-
-#define DE_RX_RING_SIZE 64
-#define DE_TX_RING_SIZE 64
-#define DE_RING_BYTES \
- ((sizeof(struct de_desc) * DE_RX_RING_SIZE) + \
- (sizeof(struct de_desc) * DE_TX_RING_SIZE))
-#define NEXT_TX(N) (((N) + 1) & (DE_TX_RING_SIZE - 1))
-#define NEXT_RX(N) (((N) + 1) & (DE_RX_RING_SIZE - 1))
-#define TX_BUFFS_AVAIL(CP) \
- (((CP)->tx_tail <= (CP)->tx_head) ? \
- (CP)->tx_tail + (DE_TX_RING_SIZE - 1) - (CP)->tx_head : \
- (CP)->tx_tail - (CP)->tx_head - 1)
-
-#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
-#define RX_OFFSET 2
-
-#define DE_SETUP_SKB ((struct sk_buff *) 1)
-#define DE_DUMMY_SKB ((struct sk_buff *) 2)
-#define DE_SETUP_FRAME_WORDS 96
-#define DE_EEPROM_WORDS 256
-#define DE_EEPROM_SIZE (DE_EEPROM_WORDS * sizeof(u16))
-#define DE_MAX_MEDIA 5
-
-#define DE_MEDIA_TP_AUTO 0
-#define DE_MEDIA_BNC 1
-#define DE_MEDIA_AUI 2
-#define DE_MEDIA_TP 3
-#define DE_MEDIA_TP_FD 4
-#define DE_MEDIA_INVALID DE_MAX_MEDIA
-#define DE_MEDIA_FIRST 0
-#define DE_MEDIA_LAST (DE_MAX_MEDIA - 1)
-#define DE_AUI_BNC (SUPPORTED_AUI | SUPPORTED_BNC)
-
-#define DE_TIMER_LINK (60 * HZ)
-#define DE_TIMER_NO_LINK (5 * HZ)
-
-#define DE_NUM_REGS 16
-#define DE_REGS_SIZE (DE_NUM_REGS * sizeof(u32))
-#define DE_REGS_VER 1
-
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (6*HZ)
-
-/* This is a mysterious value that can be written to CSR11 in the 21040 (only)
- to support a pre-NWay full-duplex signaling mechanism using short frames.
- No one knows what it should be, but if left at its default value some
- 10base2(!) packets trigger a full-duplex-request interrupt. */
-#define FULL_DUPLEX_MAGIC 0x6969
-
-enum {
- /* NIC registers */
- BusMode = 0x00,
- TxPoll = 0x08,
- RxPoll = 0x10,
- RxRingAddr = 0x18,
- TxRingAddr = 0x20,
- MacStatus = 0x28,
- MacMode = 0x30,
- IntrMask = 0x38,
- RxMissed = 0x40,
- ROMCmd = 0x48,
- CSR11 = 0x58,
- SIAStatus = 0x60,
- CSR13 = 0x68,
- CSR14 = 0x70,
- CSR15 = 0x78,
- PCIPM = 0x40,
-
- /* BusMode bits */
- CmdReset = (1 << 0),
- CacheAlign16 = 0x00008000,
- BurstLen4 = 0x00000400,
- DescSkipLen = (DSL << 2),
-
- /* Rx/TxPoll bits */
- NormalTxPoll = (1 << 0),
- NormalRxPoll = (1 << 0),
-
- /* Tx/Rx descriptor status bits */
- DescOwn = (1 << 31),
- RxError = (1 << 15),
- RxErrLong = (1 << 7),
- RxErrCRC = (1 << 1),
- RxErrFIFO = (1 << 0),
- RxErrRunt = (1 << 11),
- RxErrFrame = (1 << 14),
- RingEnd = (1 << 25),
- FirstFrag = (1 << 29),
- LastFrag = (1 << 30),
- TxError = (1 << 15),
- TxFIFOUnder = (1 << 1),
- TxLinkFail = (1 << 2) | (1 << 10) | (1 << 11),
- TxMaxCol = (1 << 8),
- TxOWC = (1 << 9),
- TxJabber = (1 << 14),
- SetupFrame = (1 << 27),
- TxSwInt = (1 << 31),
-
- /* MacStatus bits */
- IntrOK = (1 << 16),
- IntrErr = (1 << 15),
- RxIntr = (1 << 6),
- RxEmpty = (1 << 7),
- TxIntr = (1 << 0),
- TxEmpty = (1 << 2),
- PciErr = (1 << 13),
- TxState = (1 << 22) | (1 << 21) | (1 << 20),
- RxState = (1 << 19) | (1 << 18) | (1 << 17),
- LinkFail = (1 << 12),
- LinkPass = (1 << 4),
- RxStopped = (1 << 8),
- TxStopped = (1 << 1),
-
- /* MacMode bits */
- TxEnable = (1 << 13),
- RxEnable = (1 << 1),
- RxTx = TxEnable | RxEnable,
- FullDuplex = (1 << 9),
- AcceptAllMulticast = (1 << 7),
- AcceptAllPhys = (1 << 6),
- BOCnt = (1 << 5),
- MacModeClear = (1<<12) | (1<<11) | (1<<10) | (1<<8) | (1<<3) |
- RxTx | BOCnt | AcceptAllPhys | AcceptAllMulticast,
-
- /* ROMCmd bits */
- EE_SHIFT_CLK = 0x02, /* EEPROM shift clock. */
- EE_CS = 0x01, /* EEPROM chip select. */
- EE_DATA_WRITE = 0x04, /* Data from the Tulip to EEPROM. */
- EE_WRITE_0 = 0x01,
- EE_WRITE_1 = 0x05,
- EE_DATA_READ = 0x08, /* Data from the EEPROM chip. */
- EE_ENB = (0x4800 | EE_CS),
-
- /* The EEPROM commands include the alway-set leading bit. */
- EE_READ_CMD = 6,
-
- /* RxMissed bits */
- RxMissedOver = (1 << 16),
- RxMissedMask = 0xffff,
-
- /* SROM-related bits */
- SROMC0InfoLeaf = 27,
- MediaBlockMask = 0x3f,
- MediaCustomCSRs = (1 << 6),
-
- /* PCIPM bits */
- PM_Sleep = (1 << 31),
- PM_Snooze = (1 << 30),
- PM_Mask = PM_Sleep | PM_Snooze,
-
- /* SIAStatus bits */
- NWayState = (1 << 14) | (1 << 13) | (1 << 12),
- NWayRestart = (1 << 12),
- NonselPortActive = (1 << 9),
- SelPortActive = (1 << 8),
- LinkFailStatus = (1 << 2),
- NetCxnErr = (1 << 1),
-};
-
-static const u32 de_intr_mask =
- IntrOK | IntrErr | RxIntr | RxEmpty | TxIntr | TxEmpty |
- LinkPass | LinkFail | PciErr;
-
-/*
- * Set the programmable burst length to 4 longwords for all:
- * DMA errors result without these values. Cache align 16 long.
- */
-static const u32 de_bus_mode = CacheAlign16 | BurstLen4 | DescSkipLen;
-
-struct de_srom_media_block {
- u8 opts;
- u16 csr13;
- u16 csr14;
- u16 csr15;
-} __packed;
-
-struct de_srom_info_leaf {
- u16 default_media;
- u8 n_blocks;
- u8 unused;
-} __packed;
-
-struct de_desc {
- __le32 opts1;
- __le32 opts2;
- __le32 addr1;
- __le32 addr2;
-#if DSL
- __le32 skip[DSL];
-#endif
-};
-
-struct media_info {
- u16 type; /* DE_MEDIA_xxx */
- u16 csr13;
- u16 csr14;
- u16 csr15;
-};
-
-struct ring_info {
- struct sk_buff *skb;
- dma_addr_t mapping;
-};
-
-struct de_private {
- unsigned tx_head;
- unsigned tx_tail;
- unsigned rx_tail;
-
- void __iomem *regs;
- struct net_device *dev;
- spinlock_t lock;
-
- struct de_desc *rx_ring;
- struct de_desc *tx_ring;
- struct ring_info tx_skb[DE_TX_RING_SIZE];
- struct ring_info rx_skb[DE_RX_RING_SIZE];
- unsigned rx_buf_sz;
- dma_addr_t ring_dma;
-
- u32 msg_enable;
-
- struct net_device_stats net_stats;
-
- struct pci_dev *pdev;
-
- u16 setup_frame[DE_SETUP_FRAME_WORDS];
-
- u32 media_type;
- u32 media_supported;
- u32 media_advertise;
- struct media_info media[DE_MAX_MEDIA];
- struct timer_list media_timer;
-
- u8 *ee_data;
- unsigned board_idx;
- unsigned de21040 : 1;
- unsigned media_lock : 1;
-};
-
-
-static void de_set_rx_mode (struct net_device *dev);
-static void de_tx (struct de_private *de);
-static void de_clean_rings (struct de_private *de);
-static void de_media_interrupt (struct de_private *de, u32 status);
-static void de21040_media_timer (unsigned long data);
-static void de21041_media_timer (unsigned long data);
-static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media);
-
-
-static DEFINE_PCI_DEVICE_TABLE(de_pci_tbl) = {
- { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
- { },
-};
-MODULE_DEVICE_TABLE(pci, de_pci_tbl);
-
-static const char * const media_name[DE_MAX_MEDIA] = {
- "10baseT auto",
- "BNC",
- "AUI",
- "10baseT-HD",
- "10baseT-FD"
-};
-
-/* 21040 transceiver register settings:
- * TP AUTO(unused), BNC(unused), AUI, TP, TP FD*/
-static u16 t21040_csr13[] = { 0, 0, 0x8F09, 0x8F01, 0x8F01, };
-static u16 t21040_csr14[] = { 0, 0, 0x0705, 0xFFFF, 0xFFFD, };
-static u16 t21040_csr15[] = { 0, 0, 0x0006, 0x0000, 0x0000, };
-
-/* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/
-static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
-static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
-/* If on-chip autonegotiation is broken, use half-duplex (FF3F) instead */
-static u16 t21041_csr14_brk[] = { 0xFF3F, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
-static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
-
-
-#define dr32(reg) ioread32(de->regs + (reg))
-#define dw32(reg, val) iowrite32((val), de->regs + (reg))
-
-
-static void de_rx_err_acct (struct de_private *de, unsigned rx_tail,
- u32 status, u32 len)
-{
- netif_dbg(de, rx_err, de->dev,
- "rx err, slot %d status 0x%x len %d\n",
- rx_tail, status, len);
-
- if ((status & 0x38000300) != 0x0300) {
- /* Ingore earlier buffers. */
- if ((status & 0xffff) != 0x7fff) {
- netif_warn(de, rx_err, de->dev,
- "Oversized Ethernet frame spanned multiple buffers, status %08x!\n",
- status);
- de->net_stats.rx_length_errors++;
- }
- } else if (status & RxError) {
- /* There was a fatal error. */
- de->net_stats.rx_errors++; /* end of a packet.*/
- if (status & 0x0890) de->net_stats.rx_length_errors++;
- if (status & RxErrCRC) de->net_stats.rx_crc_errors++;
- if (status & RxErrFIFO) de->net_stats.rx_fifo_errors++;
- }
-}
-
-static void de_rx (struct de_private *de)
-{
- unsigned rx_tail = de->rx_tail;
- unsigned rx_work = DE_RX_RING_SIZE;
- unsigned drop = 0;
- int rc;
-
- while (--rx_work) {
- u32 status, len;
- dma_addr_t mapping;
- struct sk_buff *skb, *copy_skb;
- unsigned copying_skb, buflen;
-
- skb = de->rx_skb[rx_tail].skb;
- BUG_ON(!skb);
- rmb();
- status = le32_to_cpu(de->rx_ring[rx_tail].opts1);
- if (status & DescOwn)
- break;
-
- len = ((status >> 16) & 0x7ff) - 4;
- mapping = de->rx_skb[rx_tail].mapping;
-
- if (unlikely(drop)) {
- de->net_stats.rx_dropped++;
- goto rx_next;
- }
-
- if (unlikely((status & 0x38008300) != 0x0300)) {
- de_rx_err_acct(de, rx_tail, status, len);
- goto rx_next;
- }
-
- copying_skb = (len <= rx_copybreak);
-
- netif_dbg(de, rx_status, de->dev,
- "rx slot %d status 0x%x len %d copying? %d\n",
- rx_tail, status, len, copying_skb);
-
- buflen = copying_skb ? (len + RX_OFFSET) : de->rx_buf_sz;
- copy_skb = dev_alloc_skb (buflen);
- if (unlikely(!copy_skb)) {
- de->net_stats.rx_dropped++;
- drop = 1;
- rx_work = 100;
- goto rx_next;
- }
-
- if (!copying_skb) {
- pci_unmap_single(de->pdev, mapping,
- buflen, PCI_DMA_FROMDEVICE);
- skb_put(skb, len);
-
- mapping =
- de->rx_skb[rx_tail].mapping =
- pci_map_single(de->pdev, copy_skb->data,
- buflen, PCI_DMA_FROMDEVICE);
- de->rx_skb[rx_tail].skb = copy_skb;
- } else {
- pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
- skb_reserve(copy_skb, RX_OFFSET);
- skb_copy_from_linear_data(skb, skb_put(copy_skb, len),
- len);
- pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
-
- /* We'll reuse the original ring buffer. */
- skb = copy_skb;
- }
-
- skb->protocol = eth_type_trans (skb, de->dev);
-
- de->net_stats.rx_packets++;
- de->net_stats.rx_bytes += skb->len;
- rc = netif_rx (skb);
- if (rc == NET_RX_DROP)
- drop = 1;
-
-rx_next:
- if (rx_tail == (DE_RX_RING_SIZE - 1))
- de->rx_ring[rx_tail].opts2 =
- 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)
- netdev_warn(de->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;
-
- netif_dbg(de, intr, dev, "intr, status %08x mode %08x desc %u/%u/%u\n",
- 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);
- netdev_err(de->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) {
- netif_dbg(de, tx_err, de->dev,
- "tx err, status 0x%x\n",
- 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;
- netif_dbg(de, tx_done, de->dev,
- "tx done, slot %d\n", 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);
- netif_dbg(de, tx_queued, dev, "tx queued, slot %d, skblen %d\n",
- 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);
- }
-
- netdev_warn(de->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);
- netif_info(de, link, de->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);
- netif_info(de, link, de->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))
- netdev_warn(de->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;
-
- netif_info(de, link, de->dev, "set link %s\n", media_name[media]);
- netif_info(de, hw, de->dev, "mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n",
- dr32(MacMode), dr32(SIAStatus),
- dr32(CSR13), dr32(CSR14), dr32(CSR15));
- netif_info(de, hw, de->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, const 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
- netif_info(de, timer, 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) {
- static const u32 next_state = DE_MEDIA_TP;
- de_next_media(de, &next_state, 1);
- } else {
- static const 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);
-
- netif_info(de, timer, 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;
-
- /* clear port active bits */
- dw32(SIAStatus, NonselPortActive | SelPortActive);
-
- 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
- netif_info(de, timer, 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) {
- static const 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) {
- static const u32 next_states[] = {
- DE_MEDIA_TP_AUTO, DE_MEDIA_AUI
- };
- de_next_media(de, next_states, ARRAY_SIZE(next_states));
- } else {
- static const 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);
-
- netif_info(de, timer, 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) {
- /* Ignore if current media is AUI or BNC and we can't use TP */
- if ((de->media_type == DE_MEDIA_AUI ||
- de->media_type == DE_MEDIA_BNC) &&
- (de->media_lock ||
- !de_ok_to_advertise(de, DE_MEDIA_TP_AUTO)))
- return;
- /* If current media is not TP, change it to TP */
- if ((de->media_type == DE_MEDIA_AUI ||
- de->media_type == DE_MEDIA_BNC)) {
- de->media_type = DE_MEDIA_TP_AUTO;
- de_stop_rxtx(de);
- de_set_media(de);
- de_start_rxtx(de);
- }
- de_link_up(de);
- mod_timer(&de->media_timer, jiffies + DE_TIMER_LINK);
- return;
- }
-
- BUG_ON(!(status & LinkFail));
- /* Mark the link as down only if current media is TP */
- if (netif_carrier_ok(de->dev) && de->media_type != DE_MEDIA_AUI &&
- de->media_type != DE_MEDIA_BNC) {
- 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;
-
- dw32(CSR13, 0); /* Reset phy */
- 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;
-
- netif_dbg(de, ifup, dev, "enabling interface\n");
-
- de->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
-
- rc = de_alloc_rings(de);
- if (rc) {
- netdev_err(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) {
- netdev_err(dev, "IRQ %d request failure, err=%d\n",
- dev->irq, rc);
- goto err_out_free;
- }
-
- rc = de_init_hw(de);
- if (rc) {
- netdev_err(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;
-
- netif_dbg(de, ifdown, dev, "disabling interface\n");
-
- 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);
-
- netdev_dbg(dev, "NIC status %08x mode %08x sia %08x desc %u/%u/%u\n",
- 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;
- break;
- case DE_MEDIA_BNC:
- ecmd->port = PORT_BNC;
- break;
- default:
- ecmd->port = PORT_TP;
- break;
- }
-
- ethtool_cmd_speed_set(ecmd, 10);
-
- 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 (ethtool_cmd_speed(ecmd) != 10)
- 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);
- mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK);
- de_stop_rxtx(de);
-
- de->media_type = new_media;
- de->media_lock = media_lock;
- de->media_advertise = ecmd->advertising;
- de_set_media(de);
- if (netif_running(de->dev))
- de_start_rxtx(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);
- netif_info(de, link, 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);
- rmb();
- } while (value < 0 && --boguscnt > 0);
- de->dev->dev_addr[i] = value;
- udelay(1);
- if (boguscnt <= 0)
- pr_warn("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) {
- /* autonegotiation is broken at least on some chip
- revisions - rev. 0x21 works, 0x11 does not */
- if (de->pdev->revision < 0x20)
- de->media[i].csr14 = t21041_csr14_brk[i];
- else
- 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)
- pr_info("%s\n", 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);
-
- /* 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("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("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("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("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("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 */
- netdev_info(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))) {
- netdev_err(dev, "pci_enable_device failed in resume\n");
- goto out;
- }
- pci_set_master(pdev);
- de_init_rings(de);
- 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
- pr_info("%s\n", 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);