#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#define DRV_MODULE_NAME "b44"
#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "0.94"
-#define DRV_MODULE_RELDATE "May 4, 2004"
+#define DRV_MODULE_VERSION "0.95"
+#define DRV_MODULE_RELDATE "Aug 3, 2004"
#define B44_DEF_MSG_ENABLE \
(NETIF_MSG_DRV | \
#define B44_DEF_TX_RING_PENDING (B44_TX_RING_SIZE - 1)
#define B44_TX_RING_BYTES (sizeof(struct dma_desc) * \
B44_TX_RING_SIZE)
+#define B44_DMA_MASK 0x3fffffff
#define TX_RING_GAP(BP) \
(B44_TX_RING_SIZE - (BP)->tx_pending)
#define NEXT_TX(N) (((N) + 1) & (B44_TX_RING_SIZE - 1))
#define RX_PKT_BUF_SZ (1536 + bp->rx_offset + 64)
+#define TX_PKT_BUF_SZ (B44_MAX_MTU + ETH_HLEN + 8)
/* minimum number of free TX descriptors required to wake up TX process */
#define B44_TX_WAKEUP_THRESH (B44_TX_RING_SIZE / 4)
static char version[] __devinitdata =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
-MODULE_AUTHOR("David S. Miller (davem@redhat.com)");
+MODULE_AUTHOR("Florian Schirmer, Pekka Pietikainen, David S. Miller");
MODULE_DESCRIPTION("Broadcom 4400 10/100 PCI ethernet driver");
MODULE_LICENSE("GPL");
-MODULE_PARM(b44_debug, "i");
-MODULE_PARM_DESC(b44_debug, "B44 bitmapped debugging message enable value");
+MODULE_VERSION(DRV_MODULE_VERSION);
static int b44_debug = -1; /* -1 == use B44_DEF_MSG_ENABLE as value */
+module_param(b44_debug, int, 0);
+MODULE_PARM_DESC(b44_debug, "B44 bitmapped debugging message enable value");
static struct pci_device_id b44_pci_tbl[] = {
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401,
static void b44_halt(struct b44 *);
static void b44_init_rings(struct b44 *);
static void b44_init_hw(struct b44 *);
+static int b44_poll(struct net_device *dev, int *budget);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void b44_poll_controller(struct net_device *dev);
+#endif
static inline unsigned long br32(const struct b44 *bp, unsigned long reg)
{
* interrupts disabled.
*/
-#define SBID_SDRAM 0
-#define SBID_PCI_MEM 1
-#define SBID_PCI_CFG 2
-#define SBID_PCI_DMA 3
-#define SBID_SDRAM_SWAPPED 4
-#define SBID_ENUM 5
-#define SBID_REG_SDRAM 6
-#define SBID_REG_ILINE20 7
-#define SBID_REG_EMAC 8
-#define SBID_REG_CODEC 9
-#define SBID_REG_USB 10
-#define SBID_REG_PCI 11
-#define SBID_REG_MIPS 12
-#define SBID_REG_EXTIF 13
-#define SBID_EXTIF 14
-#define SBID_EJTAG 15
-#define SBID_MAX 16
-
-static u32 ssb_get_addr(struct b44 *bp, u32 id, u32 instance)
-{
- switch (id) {
- case SBID_PCI_DMA:
- return 0x40000000;
- case SBID_ENUM:
- return 0x18000000;
- case SBID_REG_EMAC:
- return 0x18000000;
- case SBID_REG_CODEC:
- return 0x18001000;
- case SBID_REG_PCI:
- return 0x18002000;
- default:
- return 0;
- };
-}
+#define SB_PCI_DMA 0x40000000 /* Client Mode PCI memory access space (1 GB) */
+#define BCM4400_PCI_CORE_ADDR 0x18002000 /* Address of PCI core on BCM4400 cards */
static u32 ssb_get_core_rev(struct b44 *bp)
{
u32 bar_orig, pci_rev, val;
pci_read_config_dword(bp->pdev, SSB_BAR0_WIN, &bar_orig);
- pci_write_config_dword(bp->pdev, SSB_BAR0_WIN,
- ssb_get_addr(bp, SBID_REG_PCI, 0));
+ pci_write_config_dword(bp->pdev, SSB_BAR0_WIN, BCM4400_PCI_CORE_ADDR);
pci_rev = ssb_get_core_rev(bp);
val = br32(bp, B44_SBINTVEC);
if (skb == NULL)
return -ENOMEM;
- skb->dev = bp->dev;
mapping = pci_map_single(bp->pdev, skb->data,
RX_PKT_BUF_SZ,
PCI_DMA_FROMDEVICE);
+
+ /* Hardware bug work-around, the chip is unable to do PCI DMA
+ to/from anything above 1GB :-( */
+ if(mapping+RX_PKT_BUF_SZ > B44_DMA_MASK) {
+ /* Sigh... */
+ pci_unmap_single(bp->pdev, mapping, RX_PKT_BUF_SZ,PCI_DMA_FROMDEVICE);
+ dev_kfree_skb_any(skb);
+ skb = __dev_alloc_skb(RX_PKT_BUF_SZ,GFP_DMA);
+ if (skb == NULL)
+ return -ENOMEM;
+ mapping = pci_map_single(bp->pdev, skb->data,
+ RX_PKT_BUF_SZ,
+ PCI_DMA_FROMDEVICE);
+ if(mapping+RX_PKT_BUF_SZ > B44_DMA_MASK) {
+ pci_unmap_single(bp->pdev, mapping, RX_PKT_BUF_SZ,PCI_DMA_FROMDEVICE);
+ dev_kfree_skb_any(skb);
+ return -ENOMEM;
+ }
+ }
+
+ skb->dev = bp->dev;
skb_reserve(skb, bp->rx_offset);
rh = (struct rx_header *)
entry = bp->tx_prod;
mapping = pci_map_single(bp->pdev, skb->data, len, PCI_DMA_TODEVICE);
+ if(mapping+len > B44_DMA_MASK) {
+ /* Chip can't handle DMA to/from >1GB, use bounce buffer */
+ pci_unmap_single(bp->pdev, mapping, len,PCI_DMA_TODEVICE);
+ memcpy(bp->tx_bufs+entry*TX_PKT_BUF_SZ,skb->data,skb->len);
+ mapping = pci_map_single(bp->pdev, bp->tx_bufs+entry*TX_PKT_BUF_SZ, len, PCI_DMA_TODEVICE);
+ }
bp->tx_buffers[entry].skb = skb;
pci_unmap_addr_set(&bp->tx_buffers[entry], mapping, mapping);
bp->tx_ring, bp->tx_ring_dma);
bp->tx_ring = NULL;
}
+ if (bp->tx_bufs) {
+ pci_free_consistent(bp->pdev, B44_TX_RING_SIZE * TX_PKT_BUF_SZ,
+ bp->tx_bufs, bp->tx_bufs_dma);
+ bp->tx_bufs = NULL;
+ }
}
/*
goto out_err;
memset(bp->tx_buffers, 0, size);
+ size = B44_TX_RING_SIZE * TX_PKT_BUF_SZ;
+ bp->tx_bufs = pci_alloc_consistent(bp->pdev, size, &bp->tx_bufs_dma);
+ if (!bp->tx_bufs)
+ goto out_err;
+ memset(bp->tx_bufs, 0, size);
+
size = DMA_TABLE_BYTES;
bp->rx_ring = pci_alloc_consistent(bp->pdev, size, &bp->rx_ring_dma);
if (!bp->rx_ring)
}
#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void b44_poll_controller(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ b44_interrupt(dev->irq, dev, NULL);
+ enable_irq(dev->irq);
+}
+#endif
+
static int b44_close(struct net_device *dev)
{
struct b44 *bp = netdev_priv(dev);
hwstat->rx_symbol_errs);
nstat->tx_aborted_errors = hwstat->tx_underruns;
+#if 0
+ /* Carrier lost counter seems to be broken for some devices */
nstat->tx_carrier_errors = hwstat->tx_carrier_lost;
+#endif
return nstat;
}
bp->dev->dev_addr[5] = eeprom[82];
bp->phy_addr = eeprom[90] & 0x1f;
- bp->mdc_port = (eeprom[90] >> 14) & 0x1;
/* With this, plus the rx_header prepended to the data by the
* hardware, we'll land the ethernet header on a 2-byte boundary.
bp->imask = IMASK_DEF;
bp->core_unit = ssb_core_unit(bp);
- bp->dma_offset = ssb_get_addr(bp, SBID_PCI_DMA, 0);
+ bp->dma_offset = SB_PCI_DMA;
/* XXX - really required?
bp->flags |= B44_FLAG_BUGGY_TXPTR;
pci_set_master(pdev);
- err = pci_set_dma_mask(pdev, (u64) 0xffffffff);
+ err = pci_set_dma_mask(pdev, (u64) B44_DMA_MASK);
if (err) {
printk(KERN_ERR PFX "No usable DMA configuration, "
"aborting.\n");
goto err_out_free_res;
}
+
+ err = pci_set_consistent_dma_mask(pdev, (u64) B44_DMA_MASK);
+ if (err) {
+ printk(KERN_ERR PFX "No usable DMA configuration, "
+ "aborting.\n");
+ goto err_out_free_res;
+ }
b44reg_base = pci_resource_start(pdev, 0);
b44reg_len = pci_resource_len(pdev, 0);
dev->poll = b44_poll;
dev->weight = 64;
dev->watchdog_timeo = B44_TX_TIMEOUT;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = b44_poll_controller;
+#endif
dev->change_mtu = b44_change_mtu;
dev->irq = pdev->irq;
SET_ETHTOOL_OPS(dev, &b44_ethtool_ops);
pci_set_drvdata(pdev, dev);
- pci_save_state(bp->pdev, bp->pci_cfg_state);
+ pci_save_state(bp->pdev);
printk(KERN_INFO "%s: Broadcom 4400 10/100BaseT Ethernet ", dev->name);
for (i = 0; i < 6; i++)
static int b44_suspend(struct pci_dev *pdev, u32 state)
{
struct net_device *dev = pci_get_drvdata(pdev);
- struct b44 *bp = dev->priv;
+ struct b44 *bp = netdev_priv(dev);
if (!netif_running(dev))
return 0;
static int b44_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
- struct b44 *bp = dev->priv;
+ struct b44 *bp = netdev_priv(dev);
- pci_restore_state(pdev, bp->pci_cfg_state);
+ pci_restore_state(pdev);
if (!netif_running(dev))
return 0;
git://git.onelab.eu / linux-2.6.git / blobdiff