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Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6

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This commit is contained in:
Linus Torvalds
2005-11-09 08:34:36 -08:00
parent 7df446e7e0 f406db8cba
commit a7c243b544
35 changed files with 8141 additions and 3666 deletions
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179
drivers/net/b44.c
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@@ -28,8 +28,8 @@
#define DRV_MODULE_NAME "b44"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "0.95"
#define DRV_MODULE_RELDATE "Aug 3, 2004"
#define DRV_MODULE_VERSION "0.96"
#define DRV_MODULE_RELDATE "Nov 8, 2005"
#define B44_DEF_MSG_ENABLE \
(NETIF_MSG_DRV | \
@@ -101,14 +101,16 @@ MODULE_DEVICE_TABLE(pci, b44_pci_tbl);
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 int dma_desc_align_mask;
static int dma_desc_sync_size;
static const char b44_gstrings[][ETH_GSTRING_LEN] = {
#define _B44(x...) # x,
B44_STAT_REG_DECLARE
#undef _B44
};
static inline void b44_sync_dma_desc_for_device(struct pci_dev *pdev,
dma_addr_t dma_base,
unsigned long offset,
@@ -501,7 +503,10 @@ static void b44_stats_update(struct b44 *bp)
for (reg = B44_TX_GOOD_O; reg <= B44_TX_PAUSE; reg += 4UL) {
*val++ += br32(bp, reg);
}
val = &bp->hw_stats.rx_good_octets;
/* Pad */
reg += 8*4UL;
for (reg = B44_RX_GOOD_O; reg <= B44_RX_NPAUSE; reg += 4UL) {
*val++ += br32(bp, reg);
}
@@ -652,7 +657,7 @@ static int b44_alloc_rx_skb(struct b44 *bp, int src_idx, u32 dest_idx_unmasked)
/* 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) {
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);
@@ -662,7 +667,7 @@ static int b44_alloc_rx_skb(struct b44 *bp, int src_idx, u32 dest_idx_unmasked)
mapping = pci_map_single(bp->pdev, skb->data,
RX_PKT_BUF_SZ,
PCI_DMA_FROMDEVICE);
if(mapping+RX_PKT_BUF_SZ > B44_DMA_MASK) {
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;
@@ -889,11 +894,10 @@ static irqreturn_t b44_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct net_device *dev = dev_id;
struct b44 *bp = netdev_priv(dev);
unsigned long flags;
u32 istat, imask;
int handled = 0;
spin_lock_irqsave(&bp->lock, flags);
spin_lock(&bp->lock);
istat = br32(bp, B44_ISTAT);
imask = br32(bp, B44_IMASK);
@@ -904,6 +908,12 @@ static irqreturn_t b44_interrupt(int irq, void *dev_id, struct pt_regs *regs)
istat &= imask;
if (istat) {
handled = 1;
if (unlikely(!netif_running(dev))) {
printk(KERN_INFO "%s: late interrupt.\n", dev->name);
goto irq_ack;
}
if (netif_rx_schedule_prep(dev)) {
/* NOTE: These writes are posted by the readback of
* the ISTAT register below.
@@ -916,10 +926,11 @@ static irqreturn_t b44_interrupt(int irq, void *dev_id, struct pt_regs *regs)
dev->name);
}
irq_ack:
bw32(bp, B44_ISTAT, istat);
br32(bp, B44_ISTAT);
}
spin_unlock_irqrestore(&bp->lock, flags);
spin_unlock(&bp->lock);
return IRQ_RETVAL(handled);
}
@@ -947,6 +958,7 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct b44 *bp = netdev_priv(dev);
struct sk_buff *bounce_skb;
int rc = NETDEV_TX_OK;
dma_addr_t mapping;
u32 len, entry, ctrl;
@@ -956,29 +968,28 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* This is a hard error, log it. */
if (unlikely(TX_BUFFS_AVAIL(bp) < 1)) {
netif_stop_queue(dev);
spin_unlock_irq(&bp->lock);
printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n",
dev->name);
return 1;
goto err_out;
}
mapping = pci_map_single(bp->pdev, skb->data, len, PCI_DMA_TODEVICE);
if(mapping+len > B44_DMA_MASK) {
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);
bounce_skb = __dev_alloc_skb(TX_PKT_BUF_SZ,
GFP_ATOMIC|GFP_DMA);
if (!bounce_skb)
return NETDEV_TX_BUSY;
goto err_out;
mapping = pci_map_single(bp->pdev, bounce_skb->data,
len, PCI_DMA_TODEVICE);
if(mapping+len > B44_DMA_MASK) {
if (mapping + len > B44_DMA_MASK) {
pci_unmap_single(bp->pdev, mapping,
len, PCI_DMA_TODEVICE);
dev_kfree_skb_any(bounce_skb);
return NETDEV_TX_BUSY;
goto err_out;
}
memcpy(skb_put(bounce_skb, len), skb->data, skb->len);
@@ -1018,11 +1029,16 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (TX_BUFFS_AVAIL(bp) < 1)
netif_stop_queue(dev);
spin_unlock_irq(&bp->lock);
dev->trans_start = jiffies;
return 0;
out_unlock:
spin_unlock_irq(&bp->lock);
return rc;
err_out:
rc = NETDEV_TX_BUSY;
goto out_unlock;
}
static int b44_change_mtu(struct net_device *dev, int new_mtu)
@@ -1096,8 +1112,7 @@ static void b44_free_rings(struct b44 *bp)
*
* The chip has been shut down and the driver detached from
* the networking, so no interrupts or new tx packets will
* end up in the driver. bp->lock is not held and we are not
* in an interrupt context and thus may sleep.
* end up in the driver.
*/
static void b44_init_rings(struct b44 *bp)
{
@@ -1169,16 +1184,14 @@ static int b44_alloc_consistent(struct b44 *bp)
int size;
size = B44_RX_RING_SIZE * sizeof(struct ring_info);
bp->rx_buffers = kmalloc(size, GFP_KERNEL);
bp->rx_buffers = kzalloc(size, GFP_KERNEL);
if (!bp->rx_buffers)
goto out_err;
memset(bp->rx_buffers, 0, size);
size = B44_TX_RING_SIZE * sizeof(struct ring_info);
bp->tx_buffers = kmalloc(size, GFP_KERNEL);
bp->tx_buffers = kzalloc(size, GFP_KERNEL);
if (!bp->tx_buffers)
goto out_err;
memset(bp->tx_buffers, 0, size);
size = DMA_TABLE_BYTES;
bp->rx_ring = pci_alloc_consistent(bp->pdev, size, &bp->rx_ring_dma);
@@ -1189,10 +1202,10 @@ static int b44_alloc_consistent(struct b44 *bp)
struct dma_desc *rx_ring;
dma_addr_t rx_ring_dma;
if (!(rx_ring = (struct dma_desc *)kmalloc(size, GFP_KERNEL)))
rx_ring = kzalloc(size, GFP_KERNEL);
if (!rx_ring)
goto out_err;
memset(rx_ring, 0, size);
rx_ring_dma = dma_map_single(&bp->pdev->dev, rx_ring,
DMA_TABLE_BYTES,
DMA_BIDIRECTIONAL);
@@ -1215,10 +1228,10 @@ static int b44_alloc_consistent(struct b44 *bp)
struct dma_desc *tx_ring;
dma_addr_t tx_ring_dma;
if (!(tx_ring = (struct dma_desc *)kmalloc(size, GFP_KERNEL)))
tx_ring = kzalloc(size, GFP_KERNEL);
if (!tx_ring)
goto out_err;
memset(tx_ring, 0, size);
tx_ring_dma = dma_map_single(&bp->pdev->dev, tx_ring,
DMA_TABLE_BYTES,
DMA_TO_DEVICE);
@@ -1381,22 +1394,21 @@ static int b44_open(struct net_device *dev)
err = b44_alloc_consistent(bp);
if (err)
return err;
err = request_irq(dev->irq, b44_interrupt, SA_SHIRQ, dev->name, dev);
if (err)
goto err_out_free;
spin_lock_irq(&bp->lock);
goto out;
b44_init_rings(bp);
b44_init_hw(bp);
bp->flags |= B44_FLAG_INIT_COMPLETE;
netif_carrier_off(dev);
b44_check_phy(bp);
spin_unlock_irq(&bp->lock);
err = request_irq(dev->irq, b44_interrupt, SA_SHIRQ, dev->name, dev);
if (unlikely(err < 0)) {
b44_chip_reset(bp);
b44_free_rings(bp);
b44_free_consistent(bp);
goto out;
}
init_timer(&bp->timer);
bp->timer.expires = jiffies + HZ;
@@ -1405,11 +1417,7 @@ static int b44_open(struct net_device *dev)
add_timer(&bp->timer);
b44_enable_ints(bp);
return 0;
err_out_free:
b44_free_consistent(bp);
out:
return err;
}
@@ -1444,6 +1452,8 @@ static int b44_close(struct net_device *dev)
netif_stop_queue(dev);
netif_poll_disable(dev);
del_timer_sync(&bp->timer);
spin_lock_irq(&bp->lock);
@@ -1453,13 +1463,14 @@ static int b44_close(struct net_device *dev)
#endif
b44_halt(bp);
b44_free_rings(bp);
bp->flags &= ~B44_FLAG_INIT_COMPLETE;
netif_carrier_off(bp->dev);
spin_unlock_irq(&bp->lock);
free_irq(dev->irq, dev);
netif_poll_enable(dev);
b44_free_consistent(bp);
return 0;
@@ -1524,8 +1535,6 @@ static void __b44_set_rx_mode(struct net_device *dev)
{
struct b44 *bp = netdev_priv(dev);
u32 val;
int i=0;
unsigned char zero[6] = {0,0,0,0,0,0};
val = br32(bp, B44_RXCONFIG);
val &= ~(RXCONFIG_PROMISC | RXCONFIG_ALLMULTI);
@@ -1533,14 +1542,17 @@ static void __b44_set_rx_mode(struct net_device *dev)
val |= RXCONFIG_PROMISC;
bw32(bp, B44_RXCONFIG, val);
} else {
unsigned char zero[6] = {0, 0, 0, 0, 0, 0};
int i = 0;
__b44_set_mac_addr(bp);
if (dev->flags & IFF_ALLMULTI)
val |= RXCONFIG_ALLMULTI;
else
i=__b44_load_mcast(bp, dev);
i = __b44_load_mcast(bp, dev);
for(;i<64;i++) {
for (; i < 64; i++) {
__b44_cam_write(bp, zero, i);
}
bw32(bp, B44_RXCONFIG, val);
@@ -1604,7 +1616,7 @@ static int b44_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct b44 *bp = netdev_priv(dev);
if (!(bp->flags & B44_FLAG_INIT_COMPLETE))
if (!netif_running(dev))
return -EAGAIN;
cmd->supported = (SUPPORTED_Autoneg);
cmd->supported |= (SUPPORTED_100baseT_Half |
@@ -1642,7 +1654,7 @@ static int b44_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct b44 *bp = netdev_priv(dev);
if (!(bp->flags & B44_FLAG_INIT_COMPLETE))
if (!netif_running(dev))
return -EAGAIN;
/* We do not support gigabit. */
@@ -1772,6 +1784,37 @@ static int b44_set_pauseparam(struct net_device *dev,
return 0;
}
static void b44_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
switch(stringset) {
case ETH_SS_STATS:
memcpy(data, *b44_gstrings, sizeof(b44_gstrings));
break;
}
}
static int b44_get_stats_count(struct net_device *dev)
{
return ARRAY_SIZE(b44_gstrings);
}
static void b44_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
struct b44 *bp = netdev_priv(dev);
u32 *val = &bp->hw_stats.tx_good_octets;
u32 i;
spin_lock_irq(&bp->lock);
b44_stats_update(bp);
for (i = 0; i < ARRAY_SIZE(b44_gstrings); i++)
*data++ = *val++;
spin_unlock_irq(&bp->lock);
}
static struct ethtool_ops b44_ethtool_ops = {
.get_drvinfo = b44_get_drvinfo,
.get_settings = b44_get_settings,
@@ -1784,6 +1827,9 @@ static struct ethtool_ops b44_ethtool_ops = {
.set_pauseparam = b44_set_pauseparam,
.get_msglevel = b44_get_msglevel,
.set_msglevel = b44_set_msglevel,
.get_strings = b44_get_strings,
.get_stats_count = b44_get_stats_count,
.get_ethtool_stats = b44_get_ethtool_stats,
.get_perm_addr = ethtool_op_get_perm_addr,
};
@@ -1892,9 +1938,9 @@ static int __devinit b44_init_one(struct pci_dev *pdev,
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;
printk(KERN_ERR PFX "No usable DMA configuration, "
"aborting.\n");
goto err_out_free_res;
}
b44reg_base = pci_resource_start(pdev, 0);
@@ -1916,10 +1962,8 @@ static int __devinit b44_init_one(struct pci_dev *pdev,
bp = netdev_priv(dev);
bp->pdev = pdev;
bp->dev = dev;
if (b44_debug >= 0)
bp->msg_enable = (1 << b44_debug) - 1;
else
bp->msg_enable = B44_DEF_MSG_ENABLE;
bp->msg_enable = netif_msg_init(b44_debug, B44_DEF_MSG_ENABLE);
spin_lock_init(&bp->lock);
@@ -2009,17 +2053,14 @@ err_out_disable_pdev:
static void __devexit b44_remove_one(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct b44 *bp = netdev_priv(dev);
if (dev) {
struct b44 *bp = netdev_priv(dev);
unregister_netdev(dev);
iounmap(bp->regs);
free_netdev(dev);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
unregister_netdev(dev);
iounmap(bp->regs);
free_netdev(dev);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
static int b44_suspend(struct pci_dev *pdev, pm_message_t state)