We can now use the mainline tulip driver.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
SVN-Revision: 34559
+++ /dev/null
-/*
- * originally drivers/net/tulip/tulip.h
- * Copyright 2000,2001 The Linux Kernel Team
- * Written/copyright 1994-2001 by Donald Becker.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#ifndef __NET_TULIP_H__
-#define __NET_TULIP_H__
-
-#include <linux/module.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/mii.h>
-#include <linux/crc32.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/netdevice.h>
-#include <linux/ethtool.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/etherdevice.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <asm/unaligned.h>
-#include <asm/uaccess.h>
-
-/* undefine, or define to various debugging levels (>4 == obscene levels) */
-#define TULIP_DEBUG 1
-#define VALID_INTR 0x0001a451
-#define ADM8668_WAN_IRQ 8
-#define ADM8668_LAN_IRQ 7
-#define ADM8668_WAN_MACADDR 0xb00205ac
-#define ADM8668_LAN_MACADDR 0xb0020404
-
-/* Offsets to the Command and Status Registers, "CSRs". All accesses
- must be longword instructions and quadword aligned. */
-enum tulip_offsets {
- CSR0 = 0,
- CSR1 = 0x08,
- CSR2 = 0x10,
- CSR3 = 0x18,
- CSR4 = 0x20,
- CSR5 = 0x28,
- CSR6 = 0x30,
- CSR7 = 0x38,
- CSR8 = 0x40,
- CSR9 = 0x48,
- CSR10 = 0x50,
- CSR11 = 0x58,
- CSR12 = 0x60,
- CSR13 = 0x68,
- CSR14 = 0x70,
- CSR15 = 0x78,
- CSR18 = 0x88,
- CSR19 = 0x8c,
- CSR20 = 0x90,
- CSR27 = 0xAC,
- CSR28 = 0xB0,
-};
-
-#define RxPollInt (RxIntr|RxNoBuf|RxDied|RxJabber)
-
-/* The bits in the CSR5 status registers, mostly interrupt sources. */
-enum status_bits {
- TimerInt = 0x800,
- SystemError = 0x2000,
- TPLnkFail = 0x1000,
- TPLnkPass = 0x10,
- NormalIntr = 0x10000,
- AbnormalIntr = 0x8000,
- RxJabber = 0x200,
- RxDied = 0x100,
- RxNoBuf = 0x80,
- RxIntr = 0x40,
- TxFIFOUnderflow = 0x20,
- RxErrIntr = 0x10,
- TxJabber = 0x08,
- TxNoBuf = 0x04,
- TxDied = 0x02,
- TxIntr = 0x01,
-};
-
-/* bit mask for CSR5 TX/RX process state */
-#define CSR5_TS 0x00700000
-#define CSR5_RS 0x000e0000
-
-enum tulip_mode_bits {
- TxThreshold = (1 << 22),
- FullDuplex = (1 << 9),
- TxOn = 0x2000,
- AcceptBroadcast = 0x0100,
- AcceptAllMulticast = 0x0080,
- AcceptAllPhys = 0x0040,
- AcceptRunt = 0x0008,
- RxOn = 0x0002,
- RxTx = (TxOn | RxOn),
-};
-
-/* The Tulip Rx and Tx buffer descriptors. */
-struct tulip_rx_desc {
- __le32 status;
- __le32 length;
- __le32 buffer1;
- __le32 buffer2;
-};
-
-struct tulip_tx_desc {
- __le32 status;
- __le32 length;
- __le32 buffer1;
- __le32 buffer2; /* We use only buffer 1. */
-};
-
-enum desc_status_bits {
- DescOwned = 0x80000000,
- DescWholePkt = 0x60000000,
- DescEndPkt = 0x40000000,
- DescStartPkt = 0x20000000,
- DescEndRing = 0x02000000,
- DescUseLink = 0x01000000,
-
- /*
- * Error summary flag is logical or of 'CRC Error', 'Collision Seen',
- * 'Frame Too Long', 'Runt' and 'Descriptor Error' flags generated
- * within tulip chip.
- */
- RxDescErrorSummary = 0x8000,
- RxDescCRCError = 0x0002,
- RxDescCollisionSeen = 0x0040,
-
- /*
- * 'Frame Too Long' flag is set if packet length including CRC exceeds
- * 1518. However, a full sized VLAN tagged frame is 1522 bytes
- * including CRC.
- *
- * The tulip chip does not block oversized frames, and if this flag is
- * set on a receive descriptor it does not indicate the frame has been
- * truncated. The receive descriptor also includes the actual length.
- * Therefore we can safety ignore this flag and check the length
- * ourselves.
- */
- RxDescFrameTooLong = 0x0080,
- RxDescRunt = 0x0800,
- RxDescDescErr = 0x4000,
- RxWholePkt = 0x00000300,
- /*
- * Top three bits of 14 bit frame length (status bits 27-29) should
- * never be set as that would make frame over 2047 bytes. The Receive
- * Watchdog flag (bit 4) may indicate the length is over 2048 and the
- * length field is invalid.
- */
- RxLengthOver2047 = 0x38000010
-};
-
-/* Keep the ring sizes a power of two for efficiency.
- Making the Tx ring too large decreases the effectiveness of channel
- bonding and packet priority.
- There are no ill effects from too-large receive rings. */
-
-#define TX_RING_SIZE 32
-#define RX_RING_SIZE 128
-
-/* The receiver on the DC21143 rev 65 can fail to close the last
- * receive descriptor in certain circumstances (see errata) when
- * using MWI. This can only occur if the receive buffer ends on
- * a cache line boundary, so the "+ 4" below ensures it doesn't.
- */
-#define PKT_BUF_SZ (1536 + 4) /* Size of each temporary Rx buffer. */
-
-/* Ring-wrap flag in length field, use for last ring entry.
- 0x01000000 means chain on buffer2 address,
- 0x02000000 means use the ring start address in CSR2/3.
- Note: Some work-alike chips do not function correctly in chained mode.
- The ASIX chip works only in chained mode.
- Thus we indicates ring mode, but always write the 'next' field for
- chained mode as well.
-*/
-#define DESC_RING_WRAP 0x02000000
-
-struct ring_info {
- struct sk_buff *skb;
- dma_addr_t mapping;
-};
-
-struct tulip_private {
- struct tulip_rx_desc *rx_ring;
- struct tulip_tx_desc *tx_ring;
- dma_addr_t rx_ring_dma;
- dma_addr_t tx_ring_dma;
- /* The saved address of a sent-in-place packet/buffer, for skfree(). */
- struct ring_info tx_buffers[TX_RING_SIZE];
- /* The addresses of receive-in-place skbuffs. */
- struct ring_info rx_buffers[RX_RING_SIZE];
- struct napi_struct napi;
- struct net_device_stats stats;
- struct timer_list oom_timer; /* Out of memory timer. */
- u32 mc_filter[2];
- spinlock_t lock;
- unsigned int cur_rx, cur_tx; /* The next free ring entry */
- unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
- unsigned int csr0; /* CSR0 setting. */
- unsigned int csr6; /* Current CSR6 control settings. */
- void (*link_change) (struct net_device * dev, int csr5);
- struct platform_device *pdev;
- unsigned long nir;
- void __iomem *base_addr;
- int pad0; /* Used for 8-byte alignment */
- struct net_device *dev;
-};
-
-
-/* interrupt.c */
-irqreturn_t tulip_interrupt(int irq, void *dev_instance);
-int tulip_refill_rx(struct net_device *dev);
-int tulip_poll(struct napi_struct *napi, int budget);
-
-/* tulip_core.c */
-extern int tulip_debug;
-void oom_timer(unsigned long data);
-
-static inline void tulip_start_rxtx(struct tulip_private *tp)
-{
- void __iomem *ioaddr = tp->base_addr;
- iowrite32(tp->csr6 | RxTx, ioaddr + CSR6);
- barrier();
- (void) ioread32(ioaddr + CSR6); /* mmio sync */
-}
-
-static inline void tulip_stop_rxtx(struct tulip_private *tp)
-{
- void __iomem *ioaddr = tp->base_addr;
- u32 csr6 = ioread32(ioaddr + CSR6);
-
- if (csr6 & RxTx) {
- unsigned i=1300/10;
- iowrite32(csr6 & ~RxTx, ioaddr + CSR6);
- barrier();
- /* 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 && (ioread32(ioaddr + CSR5) & (CSR5_TS|CSR5_RS)))
- udelay(10);
-
- if (!i)
- printk(KERN_DEBUG "fixme: tulip_stop_rxtx() failed"
- " (CSR5 0x%x CSR6 0x%x)\n",
- ioread32(ioaddr + CSR5),
- ioread32(ioaddr + CSR6));
- }
-}
-
-static inline void tulip_restart_rxtx(struct tulip_private *tp)
-{
- tulip_stop_rxtx(tp);
- udelay(5);
- tulip_start_rxtx(tp);
-}
-
-static inline void tulip_tx_timeout_complete(struct tulip_private *tp, void __iomem *ioaddr)
-{
- /* Stop and restart the chip's Tx processes. */
- tulip_restart_rxtx(tp);
- /* Trigger an immediate transmit demand. */
- iowrite32(0, ioaddr + CSR1);
-
- tp->stats.tx_errors++;
-}
-
-#endif /* __NET_TULIP_H__ */
+++ /dev/null
-/*
- * originally drivers/net/tulip_core.c
- * Copyright 2000,2001 The Linux Kernel Team
- * Written/copyright 1994-2001 by Donald Becker.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#define DRV_NAME "tulip"
-#define DRV_VERSION "1.1.15-NAPI" /* Keep at least for test */
-#define DRV_RELDATE "Feb 27, 2007"
-
-#include "net.h"
-
-static char version[] __devinitdata =
- "ADM8668net driver version " DRV_VERSION " (" DRV_RELDATE ")\n";
-
-#define MAX_UNITS 2
-
-/*
- Set the bus performance register.
- Typical: Set 16 longword cache alignment, no burst limit.
- Cache alignment bits 15:14 Burst length 13:8
- 0000 No alignment 0x00000000 unlimited 0800 8 longwords
- 4000 8 longwords 0100 1 longword 1000 16 longwords
- 8000 16 longwords 0200 2 longwords 2000 32 longwords
- C000 32 longwords 0400 4 longwords
- Warning: many older 486 systems are broken and require setting 0x00A04800
- 8 longword cache alignment, 8 longword burst.
- ToDo: Non-Intel setting could be better.
-*/
-
-//static int csr0 = 0x00200000 | 0x4000;
-static int csr0 = 0;
-
-/* Operational parameters that usually are not changed. */
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (4*HZ)
-
-MODULE_AUTHOR("Scott Nicholas <neutronscott@scottn.us>");
-MODULE_DESCRIPTION("ADM8668 new ethernet driver.");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-
-#ifdef TULIP_DEBUG
-int tulip_debug = TULIP_DEBUG;
-#else
-int tulip_debug = 1;
-#endif
-
-static void tulip_tx_timeout(struct net_device *dev);
-static void tulip_init_ring(struct net_device *dev);
-static void tulip_free_ring(struct net_device *dev);
-static netdev_tx_t tulip_start_xmit(struct sk_buff *skb,
- struct net_device *dev);
-static int tulip_open(struct net_device *dev);
-static int tulip_close(struct net_device *dev);
-static void tulip_up(struct net_device *dev);
-static void tulip_down(struct net_device *dev);
-static struct net_device_stats *tulip_get_stats(struct net_device *dev);
-//static int private_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static void set_rx_mode(struct net_device *dev);
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void poll_tulip(struct net_device *dev);
-#endif
-
-static void tulip_up(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
-
- napi_enable(&tp->napi);
-
- /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
- iowrite32(0x00000001, ioaddr + CSR0);
-
- /* Deassert reset.
- Wait the specified 50 PCI cycles after a reset by initializing
- Tx and Rx queues and the address filter list. */
- iowrite32(tp->csr0, ioaddr + CSR0);
-
- if (tulip_debug > 1)
- printk(KERN_DEBUG "%s: tulip_up(), irq==%d\n",
- dev->name, dev->irq);
-
- iowrite32(tp->rx_ring_dma, ioaddr + CSR3);
- iowrite32(tp->tx_ring_dma, ioaddr + CSR4);
- tp->cur_rx = tp->cur_tx = 0;
- tp->dirty_rx = tp->dirty_tx = 0;
-
- /* set mac address */
- iowrite32(get_unaligned_le32(dev->dev_addr), ioaddr + 0xA4);
- iowrite32(get_unaligned_le16(dev->dev_addr + 4), ioaddr + 0xA8);
- iowrite32(0, ioaddr + CSR27);
- iowrite32(0, ioaddr + CSR28);
-
- tp->csr6 = 0;
-
- /* Enable automatic Tx underrun recovery. */
- iowrite32(ioread32(ioaddr + CSR18) | 1, ioaddr + CSR18);
- tp->csr6 = 0x00040000;
-
- /* Start the chip's Tx to process setup frame. */
- tulip_stop_rxtx(tp);
- barrier();
- udelay(5);
- iowrite32(tp->csr6 | TxOn, ioaddr + CSR6);
-
- /* Enable interrupts by setting the interrupt mask. */
- iowrite32(VALID_INTR, ioaddr + CSR5);
- iowrite32(VALID_INTR, ioaddr + CSR7);
- tulip_start_rxtx(tp);
- iowrite32(0, ioaddr + CSR2); /* Rx poll demand */
-
- if (tulip_debug > 2) {
- printk(KERN_DEBUG "%s: Done tulip_up(), CSR0 %08x, CSR5 %08x CSR6 %08x\n",
- dev->name, ioread32(ioaddr + CSR0),
- ioread32(ioaddr + CSR5),
- ioread32(ioaddr + CSR6));
- }
-
- init_timer(&tp->oom_timer);
- tp->oom_timer.data = (unsigned long)dev;
- tp->oom_timer.function = oom_timer;
-}
-
-static int
-tulip_open(struct net_device *dev)
-{
- int retval;
-
- tulip_init_ring (dev);
-
- retval = request_irq(dev->irq, tulip_interrupt, 0, dev->name, dev);
- if (retval)
- goto free_ring;
-
- tulip_up (dev);
-
- netif_start_queue (dev);
-
- return 0;
-
-free_ring:
- tulip_free_ring (dev);
- return retval;
-}
-
-
-static void tulip_tx_timeout(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- unsigned long flags;
-
- spin_lock_irqsave (&tp->lock, flags);
-
- dev_warn(&dev->dev,
- "Transmit timed out, status %08x, CSR12 %08x, resetting...\n",
- ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12));
-
- tulip_tx_timeout_complete(tp, ioaddr);
-
- spin_unlock_irqrestore (&tp->lock, flags);
- dev->trans_start = jiffies; /* prevent tx timeout */
- netif_wake_queue (dev);
-}
-
-
-/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
-static void tulip_init_ring(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- int i;
-
- tp->nir = 0;
-
- for (i = 0; i < RX_RING_SIZE; i++) {
- tp->rx_ring[i].status = 0x00000000;
- tp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ);
- tp->rx_ring[i].buffer2 = cpu_to_le32(tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * (i + 1));
- tp->rx_buffers[i].skb = NULL;
- tp->rx_buffers[i].mapping = 0;
- }
- /* Mark the last entry as wrapping the ring. */
- tp->rx_ring[i-1].length = cpu_to_le32(PKT_BUF_SZ | DESC_RING_WRAP);
- tp->rx_ring[i-1].buffer2 = cpu_to_le32(tp->rx_ring_dma);
-
- for (i = 0; i < RX_RING_SIZE; i++) {
- dma_addr_t mapping;
- /* Note the receive buffer must be longword aligned.
- dev_alloc_skb() provides 16 byte alignment. But do *not*
- use skb_reserve() to align the IP header! */
- struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ);
- tp->rx_buffers[i].skb = skb;
- if (skb == NULL)
- break;
- mapping = dma_map_single(&dev->dev, skb->data,
- PKT_BUF_SZ, DMA_FROM_DEVICE);
- tp->rx_buffers[i].mapping = mapping;
- skb->dev = dev; /* Mark as being used by this device. */
- tp->rx_ring[i].status = cpu_to_le32(DescOwned); /* Owned by Tulip chip */
- tp->rx_ring[i].buffer1 = cpu_to_le32(mapping);
- }
- tp->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
-
- /* The Tx buffer descriptor is filled in as needed, but we
- do need to clear the ownership bit. */
- for (i = 0; i < TX_RING_SIZE; i++) {
- tp->tx_buffers[i].skb = NULL;
- tp->tx_buffers[i].mapping = 0;
- tp->tx_ring[i].status = 0x00000000;
- tp->tx_ring[i].buffer2 = cpu_to_le32(tp->tx_ring_dma + sizeof(struct tulip_tx_desc) * (i + 1));
- }
- tp->tx_ring[i-1].buffer2 = cpu_to_le32(tp->tx_ring_dma);
-}
-
-static netdev_tx_t
-tulip_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- int entry;
- u32 flag;
- dma_addr_t mapping;
- unsigned long flags;
-
- spin_lock_irqsave(&tp->lock, flags);
-
- /* Calculate the next Tx descriptor entry. */
- entry = tp->cur_tx % TX_RING_SIZE;
-
- tp->tx_buffers[entry].skb = skb;
- mapping = dma_map_single(&tp->pdev->dev, skb->data, skb->len,
- DMA_TO_DEVICE);
- tp->tx_buffers[entry].mapping = mapping;
- tp->tx_ring[entry].buffer1 = cpu_to_le32(mapping);
-
- if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE/2) {/* Typical path */
- flag = 0x60000000; /* No interrupt */
- } else if (tp->cur_tx - tp->dirty_tx == TX_RING_SIZE/2) {
- flag = 0xe0000000; /* Tx-done intr. */
- } else if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE - 2) {
- flag = 0x60000000; /* No Tx-done intr. */
- } else { /* Leave room for set_rx_mode() to fill entries. */
- flag = 0xe0000000; /* Tx-done intr. */
- netif_stop_queue(dev);
- }
- if (entry == TX_RING_SIZE-1)
- flag = 0xe0000000 | DESC_RING_WRAP;
-
- tp->tx_ring[entry].length = cpu_to_le32(skb->len | flag);
- /* if we were using Transmit Automatic Polling, we would need a
- * wmb() here. */
- tp->tx_ring[entry].status = cpu_to_le32(DescOwned);
- wmb();
-
- tp->cur_tx++;
-
- /* Trigger an immediate transmit demand. */
- iowrite32(0, tp->base_addr + CSR1);
-
- spin_unlock_irqrestore(&tp->lock, flags);
-
- return NETDEV_TX_OK;
-}
-
-static void tulip_clean_tx_ring(struct tulip_private *tp)
-{
- unsigned int dirty_tx;
-
- for (dirty_tx = tp->dirty_tx ; tp->cur_tx - dirty_tx > 0;
- dirty_tx++) {
- int entry = dirty_tx % TX_RING_SIZE;
- int status = le32_to_cpu(tp->tx_ring[entry].status);
-
- if (status < 0) {
- tp->stats.tx_errors++; /* It wasn't Txed */
- tp->tx_ring[entry].status = 0;
- }
-
- dma_unmap_single(&tp->pdev->dev, tp->tx_buffers[entry].mapping,
- tp->tx_buffers[entry].skb->len,
- DMA_TO_DEVICE);
-
- /* Free the original skb. */
- dev_kfree_skb_irq(tp->tx_buffers[entry].skb);
- tp->tx_buffers[entry].skb = NULL;
- tp->tx_buffers[entry].mapping = 0;
- }
-}
-
-static void tulip_down (struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- unsigned long flags;
-
- napi_disable(&tp->napi);
- del_timer_sync (&tp->oom_timer);
- spin_lock_irqsave (&tp->lock, flags);
-
- /* Disable interrupts by clearing the interrupt mask. */
- iowrite32 (0x00000000, ioaddr + CSR7);
-
- /* Stop the Tx and Rx processes. */
- tulip_stop_rxtx(tp);
-
- /* prepare receive buffers */
- tulip_refill_rx(dev);
-
- /* release any unconsumed transmit buffers */
- tulip_clean_tx_ring(tp);
-
- if (ioread32 (ioaddr + CSR6) != 0xffffffff)
- tp->stats.rx_missed_errors += ioread32 (ioaddr + CSR8) & 0xffff;
-
- spin_unlock_irqrestore (&tp->lock, flags);
-}
-
-static void tulip_free_ring (struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- int i;
-
- /* Free all the skbuffs in the Rx queue. */
- for (i = 0; i < RX_RING_SIZE; i++) {
- struct sk_buff *skb = tp->rx_buffers[i].skb;
- dma_addr_t mapping = tp->rx_buffers[i].mapping;
-
- tp->rx_buffers[i].skb = NULL;
- tp->rx_buffers[i].mapping = 0;
-
- tp->rx_ring[i].status = 0; /* Not owned by Tulip chip. */
- tp->rx_ring[i].length = 0;
- /* An invalid address. */
- tp->rx_ring[i].buffer1 = cpu_to_le32(0xBADF00D0);
- if (skb) {
- dma_unmap_single(&tp->pdev->dev, mapping, PKT_BUF_SZ,
- DMA_FROM_DEVICE);
- dev_kfree_skb (skb);
- }
- }
-
- for (i = 0; i < TX_RING_SIZE; i++) {
- struct sk_buff *skb = tp->tx_buffers[i].skb;
-
- if (skb != NULL) {
- dma_unmap_single(&tp->pdev->dev,
- tp->tx_buffers[i].mapping, skb->len, DMA_TO_DEVICE);
- dev_kfree_skb (skb);
- }
- tp->tx_buffers[i].skb = NULL;
- tp->tx_buffers[i].mapping = 0;
- }
-}
-
-static int tulip_close (struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
-
- netif_stop_queue (dev);
-
- tulip_down (dev);
-
- if (tulip_debug > 1)
- dev_printk(KERN_DEBUG, &dev->dev,
- "Shutting down ethercard, status was %02x\n",
- ioread32 (ioaddr + CSR5));
-
- free_irq (dev->irq, dev);
-
- tulip_free_ring (dev);
-
- return 0;
-}
-
-static struct net_device_stats *tulip_get_stats(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
-
- if (netif_running(dev)) {
- unsigned long flags;
-
- spin_lock_irqsave (&tp->lock, flags);
-
- tp->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff;
-
- spin_unlock_irqrestore(&tp->lock, flags);
- }
-
- return &tp->stats;
-}
-
-
-static void tulip_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- strcpy(info->bus_info, "mmio");
-}
-
-static const struct ethtool_ops ops = {
- .get_drvinfo = tulip_get_drvinfo
-};
-
-static void set_rx_mode(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- int csr6;
-
- csr6 = ioread32(ioaddr + CSR6) & ~0x00D5;
-
- tp->csr6 &= ~0x00D5;
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
- tp->csr6 |= AcceptAllMulticast | AcceptAllPhys;
- csr6 |= AcceptAllMulticast | AcceptAllPhys;
- } else if ((netdev_mc_count(dev) > 1000) ||
- (dev->flags & IFF_ALLMULTI)) {
- /* Too many to filter well -- accept all multicasts. */
- tp->csr6 |= AcceptAllMulticast;
- csr6 |= AcceptAllMulticast;
- } else {
- /* Some work-alikes have only a 64-entry hash filter table. */
- /* Should verify correctness on big-endian/__powerpc__ */
- struct netdev_hw_addr *ha;
- if (netdev_mc_count(dev) > 64) {
- /* Arbitrary non-effective limit. */
- tp->csr6 |= AcceptAllMulticast;
- csr6 |= AcceptAllMulticast;
- } else {
- u32 mc_filter[2] = {0, 0}; /* Multicast hash filter */
- int filterbit;
- netdev_for_each_mc_addr(ha, dev) {
- filterbit = ether_crc_le(ETH_ALEN, ha->addr);
- filterbit &= 0x3f;
- mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
- if (tulip_debug > 2)
- dev_info(&dev->dev,
- "Added filter for %pM %08x bit %d\n",
- ha->addr,
- ether_crc(ETH_ALEN, ha->addr),
- filterbit);
- }
- if (mc_filter[0] == tp->mc_filter[0] &&
- mc_filter[1] == tp->mc_filter[1])
- ; /* No change. */
- iowrite32(mc_filter[0], ioaddr + CSR27);
- iowrite32(mc_filter[1], ioaddr + CSR28);
- tp->mc_filter[0] = mc_filter[0];
- tp->mc_filter[1] = mc_filter[1];
- }
- }
-
- if (dev->irq == ADM8668_LAN_IRQ)
- csr6 |= (1 << 9); /* force 100Mbps full duplex */
-// csr6 |= 1; /* pad 2 bytes. vlan? */
-
- iowrite32(csr6, ioaddr + CSR6);
-}
-
-static const struct net_device_ops tulip_netdev_ops = {
- .ndo_open = tulip_open,
- .ndo_start_xmit = tulip_start_xmit,
- .ndo_tx_timeout = tulip_tx_timeout,
- .ndo_stop = tulip_close,
- .ndo_get_stats = tulip_get_stats,
- .ndo_set_rx_mode = set_rx_mode,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = poll_tulip,
-#endif
-};
-
-static int __devinit adm8668net_probe(struct platform_device *pdev)
-{
- struct tulip_private *tp;
- struct net_device *dev;
- struct resource *res;
- void __iomem *ioaddr;
- int irq;
-
- if (pdev->id < 0 || pdev->id >= MAX_UNITS)
- return -EINVAL;
-
- if (!(res = platform_get_resource(pdev, IORESOURCE_IRQ, 0)))
- return -ENODEV;
- irq = res->start;
- if (!(res = platform_get_resource(pdev, IORESOURCE_MEM, 0)))
- return -ENODEV;
- if (!(ioaddr = ioremap(res->start, res->end - res->start)))
- return -ENODEV;
- if (!(dev = alloc_etherdev(sizeof (*tp))))
- return -ENOMEM;
-
- /* setup net dev */
- dev->base_addr = (unsigned long)res->start;
- dev->irq = irq;
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- /* tulip private struct */
- tp = netdev_priv(dev);
- tp->dev = dev;
- tp->base_addr = ioaddr;
- tp->csr0 = csr0;
- tp->pdev = pdev;
- tp->rx_ring = dma_alloc_coherent(&pdev->dev,
- sizeof(struct tulip_rx_desc) * RX_RING_SIZE +
- sizeof(struct tulip_tx_desc) * TX_RING_SIZE,
- &tp->rx_ring_dma, GFP_KERNEL);
- if (!tp->rx_ring)
- return -ENODEV;
- tp->tx_ring = (struct tulip_tx_desc *)(tp->rx_ring + RX_RING_SIZE);
- tp->tx_ring_dma = tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * RX_RING_SIZE;
-
- spin_lock_init(&tp->lock);
-
- /* Stop the chip's Tx and Rx processes. */
- tulip_stop_rxtx(tp);
-
- /* Clear the missed-packet counter. */
- ioread32(ioaddr + CSR8);
-
- /* Addresses are stored in BSP area of NOR flash */
- if (irq == ADM8668_WAN_IRQ)
- memcpy(dev->dev_addr, (char *)ADM8668_WAN_MACADDR, 6);
- else
- memcpy(dev->dev_addr, (char *)ADM8668_LAN_MACADDR, 6);
-
- /* The Tulip-specific entries in the device structure. */
- dev->netdev_ops = &tulip_netdev_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
- netif_napi_add(dev, &tp->napi, tulip_poll, 16);
- SET_ETHTOOL_OPS(dev, &ops);
-
- if (register_netdev(dev))
- goto err_out_free_ring;
-
- dev_info(&dev->dev,
- "ADM8668net at MMIO %#lx %pM, IRQ %d\n",
- (unsigned long)dev->base_addr, dev->dev_addr, irq);
-
- platform_set_drvdata(pdev, dev);
- return 0;
-
-err_out_free_ring:
- dma_free_coherent(&pdev->dev,
- sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
- sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
- tp->rx_ring, tp->rx_ring_dma);
- return -ENODEV;
-}
-
-static int __devexit adm8668net_remove(struct platform_device *pdev)
-{
- struct net_device *dev = platform_get_drvdata (pdev);
- struct tulip_private *tp;
-
- if (!dev)
- return -ENODEV;
-
- tp = netdev_priv(dev);
- unregister_netdev(dev);
- dma_free_coherent(&pdev->dev,
- sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
- sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
- tp->rx_ring, tp->rx_ring_dma);
- iounmap(tp->base_addr);
- free_netdev(dev);
- platform_set_drvdata(pdev, NULL);
- return 0;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling 'interrupt' - used by things like netconsole to send skbs
- * without having to re-enable interrupts. It's not called while
- * the interrupt routine is executing.
- */
-
-static void poll_tulip (struct net_device *dev)
-{
- /* disable_irq here is not very nice, but with the lockless
- interrupt handler we have no other choice. */
- disable_irq(dev->irq);
- tulip_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static struct platform_driver adm8668net_platform_driver = {
- .probe = adm8668net_probe,
- .remove = __devexit_p(adm8668net_remove),
- .driver = {
- .owner = THIS_MODULE,
- .name = "adm8668_eth"
- },
-};
-
-static int __init adm8668net_init(void)
-{
- pr_info("%s", version);
- return platform_driver_register(&adm8668net_platform_driver);
-}
-
-static void __exit adm8668net_exit(void)
-{
- platform_driver_unregister(&adm8668net_platform_driver);
-}
-
-module_init(adm8668net_init);
-module_exit(adm8668net_exit);
+++ /dev/null
-/*
- * originally drivers/net/tulip/interrupt.c
- * Copyright 2000,2001 The Linux Kernel Team
- * Written/copyright 1994-2001 by Donald Becker.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include "net.h"
-
-int tulip_refill_rx(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- int entry;
- int refilled = 0;
-
- /* Refill the Rx ring buffers. */
- for (; tp->cur_rx - tp->dirty_rx > 0; tp->dirty_rx++) {
- entry = tp->dirty_rx % RX_RING_SIZE;
- if (tp->rx_buffers[entry].skb == NULL) {
- struct sk_buff *skb;
- dma_addr_t mapping;
-
- skb = tp->rx_buffers[entry].skb = dev_alloc_skb(PKT_BUF_SZ);
- if (skb == NULL)
- break;
-
- mapping = dma_map_single(&dev->dev, skb->data,
- PKT_BUF_SZ, DMA_FROM_DEVICE);
- tp->rx_buffers[entry].mapping = mapping;
-
- skb->dev = dev; /* Mark as being used by this device. */
- tp->rx_ring[entry].buffer1 = cpu_to_le32(mapping);
- refilled++;
- }
- tp->rx_ring[entry].status = cpu_to_le32(DescOwned);
- }
- return refilled;
-}
-
-void oom_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct tulip_private *tp = netdev_priv(dev);
- napi_schedule(&tp->napi);
-}
-
-int tulip_poll(struct napi_struct *napi, int budget)
-{
- struct tulip_private *tp = container_of(napi, struct tulip_private, napi);
- struct net_device *dev = tp->dev;
- int entry = tp->cur_rx % RX_RING_SIZE;
- int work_done = 0;
-
- if (tulip_debug > 4)
- printk(KERN_DEBUG " In tulip_rx(), entry %d %08x\n",
- entry, tp->rx_ring[entry].status);
-
- do {
- if (ioread32(tp->base_addr + CSR5) == 0xffffffff) {
- printk(KERN_DEBUG " In tulip_poll(), hardware disappeared\n");
- break;
- }
- /* Acknowledge current RX interrupt sources. */
- iowrite32((RxIntr | RxNoBuf), tp->base_addr + CSR5);
-
-
- /* If we own the next entry, it is a new packet. Send it up. */
- while ( ! (tp->rx_ring[entry].status & cpu_to_le32(DescOwned))) {
- s32 status = le32_to_cpu(tp->rx_ring[entry].status);
- short pkt_len;
-
- if (tp->dirty_rx + RX_RING_SIZE == tp->cur_rx)
- break;
-
- if (tulip_debug > 5)
- printk(KERN_DEBUG "%s: In tulip_rx(), entry %d %08x\n",
- dev->name, entry, status);
-
- if (++work_done >= budget)
- goto not_done;
-
- /*
- * Omit the four octet CRC from the length.
- * (May not be considered valid until we have
- * checked status for RxLengthOver2047 bits)
- */
- pkt_len = ((status >> 16) & 0x7ff) - 4;
-
-#if 0
- csr6 = ioread32(tp->base_addr + CSR6);
- if (csr6 & 0x1)
- pkt_len += 2;
-
-#endif
- /*
- * Maximum pkt_len is 1518 (1514 + vlan header)
- * Anything higher than this is always invalid
- * regardless of RxLengthOver2047 bits
- */
-
- if ((status & (RxLengthOver2047 |
- RxDescCRCError |
- RxDescCollisionSeen |
- RxDescRunt |
- RxDescDescErr |
- RxWholePkt)) != RxWholePkt ||
- pkt_len > 1518) {
- if ((status & (RxLengthOver2047 |
- RxWholePkt)) != RxWholePkt) {
- /* Ingore earlier buffers. */
- if ((status & 0xffff) != 0x7fff) {
- if (tulip_debug > 1)
- dev_warn(&dev->dev,
- "Oversized Ethernet frame spanned multiple buffers, status %08x!\n",
- status);
- tp->stats.rx_length_errors++;
- }
- } else {
- /* There was a fatal error. */
- if (tulip_debug > 2)
- printk(KERN_DEBUG "%s: Receive error, Rx status %08x\n",
- dev->name, status);
- tp->stats.rx_errors++; /* end of a packet.*/
- if (pkt_len > 1518 ||
- (status & RxDescRunt))
- tp->stats.rx_length_errors++;
-
- if (status & 0x0004) tp->stats.rx_frame_errors++;
- if (status & 0x0002) tp->stats.rx_crc_errors++;
- if (status & 0x0001) tp->stats.rx_fifo_errors++;
- }
- } else {
- struct sk_buff *skb = tp->rx_buffers[entry].skb;
- char *temp = skb_put(skb, pkt_len);
-
-#if 0
- if (csr6 & 1)
- skb_pull(skb, 2);
-#endif
-#ifndef final_version
- if (tp->rx_buffers[entry].mapping !=
- le32_to_cpu(tp->rx_ring[entry].buffer1)) {
- dev_err(&dev->dev,
- "Internal fault: The skbuff addresses do not match in tulip_rx: %08x vs. %08llx %p / %p\n",
- le32_to_cpu(tp->rx_ring[entry].buffer1),
- (unsigned long long)tp->rx_buffers[entry].mapping,
- skb->head, temp);
- }
-#endif
-
- tp->rx_buffers[entry].skb = NULL;
- tp->rx_buffers[entry].mapping = 0;
- skb->protocol = eth_type_trans(skb, dev);
-
- netif_receive_skb(skb);
-
- tp->stats.rx_packets++;
- tp->stats.rx_bytes += pkt_len;
- }
- entry = (++tp->cur_rx) % RX_RING_SIZE;
- if (tp->cur_rx - tp->dirty_rx > RX_RING_SIZE/4)
- tulip_refill_rx(dev);
-
- }
-
- /* New ack strategy... irq does not ack Rx any longer
- hopefully this helps */
-
- /* Really bad things can happen here... If new packet arrives
- * and an irq arrives (tx or just due to occasionally unset
- * mask), it will be acked by irq handler, but new thread
- * is not scheduled. It is major hole in design.
- * No idea how to fix this if "playing with fire" will fail
- * tomorrow (night 011029). If it will not fail, we won
- * finally: amount of IO did not increase at all. */
- } while ((ioread32(tp->base_addr + CSR5) & RxIntr));
-
- tulip_refill_rx(dev);
-
- /* If RX ring is not full we are out of memory. */
- if (tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL)
- goto oom;
-
- /* Remove us from polling list and enable RX intr. */
- napi_complete(napi);
- iowrite32(VALID_INTR, tp->base_addr+CSR7);
-
- /* The last op happens after poll completion. Which means the following:
- * 1. it can race with disabling irqs in irq handler
- * 2. it can race with dise/enabling irqs in other poll threads
- * 3. if an irq raised after beginning loop, it will be immediately
- * triggered here.
- *
- * Summarizing: the logic results in some redundant irqs both
- * due to races in masking and due to too late acking of already
- * processed irqs. But it must not result in losing events.
- */
-
- return work_done;
-
- not_done:
- if (tp->cur_rx - tp->dirty_rx > RX_RING_SIZE/2 ||
- tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL)
- tulip_refill_rx(dev);
-
- if (tp->rx_buffers[tp->dirty_rx % RX_RING_SIZE].skb == NULL)
- goto oom;
-
- return work_done;
-
- oom: /* Executed with RX ints disabled */
-
- /* Start timer, stop polling, but do not enable rx interrupts. */
- mod_timer(&tp->oom_timer, jiffies+1);
-
- /* Think: timer_pending() was an explicit signature of bug.
- * Timer can be pending now but fired and completed
- * before we did napi_complete(). See? We would lose it. */
-
- /* remove ourselves from the polling list */
- napi_complete(napi);
-
- return work_done;
-}
-
-/* The interrupt handler does all of the Rx thread work and cleans up
- after the Tx thread. */
-irqreturn_t tulip_interrupt(int irq, void *dev_instance)
-{
- struct net_device *dev = (struct net_device *)dev_instance;
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- int csr5;
- int missed;
- int rx = 0;
- int tx = 0;
- int oi = 0;
- int maxrx = RX_RING_SIZE;
- int maxtx = TX_RING_SIZE;
- int maxoi = TX_RING_SIZE;
- int rxd = 0;
- unsigned int work_count = 25;
- unsigned int handled = 0;
-
- /* Let's see whether the interrupt really is for us */
- csr5 = ioread32(ioaddr + CSR5);
-
- if ((csr5 & (NormalIntr|AbnormalIntr)) == 0)
- return IRQ_RETVAL(handled);
-
- tp->nir++;
-
- do {
-
- if (!rxd && (csr5 & (RxIntr | RxNoBuf))) {
- rxd++;
- /* Mask RX intrs and add the device to poll list. */
- iowrite32(VALID_INTR&~RxPollInt, ioaddr + CSR7);
- napi_schedule(&tp->napi);
-
- if (!(csr5&~(AbnormalIntr|NormalIntr|RxPollInt|TPLnkPass)))
- break;
- }
-
- /* Acknowledge the interrupt sources we handle here ASAP
- the poll function does Rx and RxNoBuf acking */
-
- iowrite32(csr5 & 0x0001ff3f, ioaddr + CSR5);
-
- if (tulip_debug > 4)
- printk(KERN_DEBUG "%s: interrupt csr5=%#8.8x new csr5=%#8.8x\n",
- dev->name, csr5, ioread32(ioaddr + CSR5));
-
-
- if (csr5 & (TxNoBuf | TxDied | TxIntr | TimerInt)) {
- unsigned int dirty_tx;
-
- spin_lock(&tp->lock);
-
- for (dirty_tx = tp->dirty_tx; tp->cur_tx - dirty_tx > 0;
- dirty_tx++) {
- int entry = dirty_tx % TX_RING_SIZE;
- int status = le32_to_cpu(tp->tx_ring[entry].status);
-
- if (status < 0)
- break; /* It still has not been Txed */
-
- if (status & 0x8000) {
- /* There was an major error, log it. */
-#ifndef final_version
- if (tulip_debug > 1)
- printk(KERN_DEBUG "%s: Transmit error, Tx status %08x\n",
- dev->name, status);
-#endif
- tp->stats.tx_errors++;
- if (status & 0x4104) tp->stats.tx_aborted_errors++;
- if (status & 0x0C00) tp->stats.tx_carrier_errors++;
- if (status & 0x0200) tp->stats.tx_window_errors++;
- if (status & 0x0002) tp->stats.tx_fifo_errors++;
- if (status & 0x0080) tp->stats.tx_heartbeat_errors++;
- } else {
- tp->stats.tx_bytes +=
- tp->tx_buffers[entry].skb->len;
- tp->stats.collisions += (status >> 3) & 15;
- tp->stats.tx_packets++;
- }
-
- dma_unmap_single(&tp->pdev->dev, tp->tx_buffers[entry].mapping,
- tp->tx_buffers[entry].skb->len, DMA_TO_DEVICE);
- /* Free the original skb. */
- dev_kfree_skb_irq(tp->tx_buffers[entry].skb);
- tp->tx_buffers[entry].skb = NULL;
- tp->tx_buffers[entry].mapping = 0;
- tx++;
- }
-
-#ifndef final_version
- if (tp->cur_tx - dirty_tx > TX_RING_SIZE) {
- dev_err(&dev->dev,
- "Out-of-sync dirty pointer, %d vs. %d\n",
- dirty_tx, tp->cur_tx);
- dirty_tx += TX_RING_SIZE;
- }
-#endif
-
- if (tp->cur_tx - dirty_tx < TX_RING_SIZE - 2)
- netif_wake_queue(dev);
-
- tp->dirty_tx = dirty_tx;
- if (csr5 & TxDied) {
- if (tulip_debug > 2)
- dev_warn(&dev->dev,
- "The transmitter stopped. CSR5 is %x, CSR6 %x, new CSR6 %x\n",
- csr5, ioread32(ioaddr + CSR6),
- tp->csr6);
- tulip_restart_rxtx(tp);
- }
- spin_unlock(&tp->lock);
- }
-
- /* Log errors. */
- if (csr5 & AbnormalIntr) { /* Abnormal error summary bit. */
- if (csr5 == 0xffffffff)
- break;
- if (csr5 & TxJabber) tp->stats.tx_errors++;
- if (csr5 & TxFIFOUnderflow) {
- if ((tp->csr6 & 0xC000) != 0xC000)
- tp->csr6 += 0x4000; /* Bump up the Tx threshold */
- else
- tp->csr6 |= 0x00200000; /* Store-n-forward. */
- /* Restart the transmit process. */
- tulip_restart_rxtx(tp);
- iowrite32(0, ioaddr + CSR1);
- }
- if (csr5 & (RxDied | RxNoBuf)) {
- iowrite32(tp->mc_filter[0], ioaddr + CSR27);
- iowrite32(tp->mc_filter[1], ioaddr + CSR28);
- }
- if (csr5 & RxDied) { /* Missed a Rx frame. */
- tp->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff;
- tp->stats.rx_errors++;
- tulip_start_rxtx(tp);
- }
- /*
- * NB: t21142_lnk_change() does a del_timer_sync(), so be careful if this
- * call is ever done under the spinlock
- */
- if (csr5 & (TPLnkPass | TPLnkFail | 0x08000000)) {
- if (tp->link_change)
- (tp->link_change)(dev, csr5);
- }
- if (csr5 & SystemError) {
- int error = (csr5 >> 23) & 7;
- /* oops, we hit a PCI error. The code produced corresponds
- * to the reason:
- * 0 - parity error
- * 1 - master abort
- * 2 - target abort
- * Note that on parity error, we should do a software reset
- * of the chip to get it back into a sane state (according
- * to the 21142/3 docs that is).
- * -- rmk
- */
- dev_err(&dev->dev,
- "(%lu) System Error occurred (%d)\n",
- tp->nir, error);
- }
- /* Clear all error sources, included undocumented ones! */
- iowrite32(0x0800f7ba, ioaddr + CSR5);
- oi++;
- }
- if (csr5 & TimerInt) {
-
- if (tulip_debug > 2)
- dev_err(&dev->dev,
- "Re-enabling interrupts, %08x\n",
- csr5);
- iowrite32(VALID_INTR, ioaddr + CSR7);
- oi++;
- }
- if (tx > maxtx || rx > maxrx || oi > maxoi) {
- if (tulip_debug > 1)
- dev_warn(&dev->dev, "Too much work during an interrupt, csr5=0x%08x. (%lu) (%d,%d,%d)\n",
- csr5, tp->nir, tx, rx, oi);
-
- /* Acknowledge all interrupt sources. */
- iowrite32(0x8001ffff, ioaddr + CSR5);
- /* Mask all interrupting sources, set timer to
- re-enable. */
- iowrite32(((~csr5) & 0x0001ebef) | AbnormalIntr | TimerInt, ioaddr + CSR7);
- iowrite32(0x0012, ioaddr + CSR11);
- break;
- }
-
- work_count--;
- if (work_count == 0)
- break;
-
- csr5 = ioread32(ioaddr + CSR5);
-
- if (rxd)
- csr5 &= ~RxPollInt;
- } while ((csr5 & (TxNoBuf |
- TxDied |
- TxIntr |
- TimerInt |
- /* Abnormal intr. */
- RxDied |
- TxFIFOUnderflow |
- TxJabber |
- TPLnkFail |
- SystemError )) != 0);
-
- if ((missed = ioread32(ioaddr + CSR8) & 0x1ffff)) {
- tp->stats.rx_dropped += missed & 0x10000 ? 0x10000 : missed;
- }
-
- if (tulip_debug > 4)
- printk(KERN_DEBUG "%s: exiting interrupt, csr5=%#04x\n",
- dev->name, ioread32(ioaddr + CSR5));
-
- return IRQ_HANDLED;
-}
projects / openwrt / openwrt.git / commitdiff