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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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* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
  natsemi: Avoid IntrStatus lossage if RX state machine resets.
  natsemi: Fix NAPI for interrupt sharing
  natsemi: Consistently use interrupt enable/disable functions
  NetXen: Fix softlockup seen during hardware access
  NetXen: Bug fix for Jumbo frames on XG card
  skge: set mac address bonding fix
This commit is contained in:
Linus Torvalds 2007-03-15 15:31:37 -07:00
commit b810cdfcf9
6 changed files with 63 additions and 41 deletions
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58
drivers/net/natsemi.c
View File

@ -1712,7 +1712,7 @@ static void init_registers(struct net_device *dev)
/* Enable interrupts by setting the interrupt mask. */
writel(DEFAULT_INTR, ioaddr + IntrMask);
writel(1, ioaddr + IntrEnable);
natsemi_irq_enable(dev);
writel(RxOn | TxOn, ioaddr + ChipCmd);
writel(StatsClear, ioaddr + StatsCtrl); /* Clear Stats */
@ -2119,28 +2119,35 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
struct netdev_private *np = netdev_priv(dev);
void __iomem * ioaddr = ns_ioaddr(dev);
if (np->hands_off)
/* Reading IntrStatus automatically acknowledges so don't do
* that while interrupts are disabled, (for example, while a
* poll is scheduled). */
if (np->hands_off || !readl(ioaddr + IntrEnable))
return IRQ_NONE;
/* Reading automatically acknowledges. */
np->intr_status = readl(ioaddr + IntrStatus);
if (!np->intr_status)
return IRQ_NONE;
if (netif_msg_intr(np))
printk(KERN_DEBUG
"%s: Interrupt, status %#08x, mask %#08x.\n",
dev->name, np->intr_status,
readl(ioaddr + IntrMask));
if (!np->intr_status)
return IRQ_NONE;
prefetch(&np->rx_skbuff[np->cur_rx % RX_RING_SIZE]);
if (netif_rx_schedule_prep(dev)) {
/* Disable interrupts and register for poll */
natsemi_irq_disable(dev);
__netif_rx_schedule(dev);
}
} else
printk(KERN_WARNING
"%s: Ignoring interrupt, status %#08x, mask %#08x.\n",
dev->name, np->intr_status,
readl(ioaddr + IntrMask));
return IRQ_HANDLED;
}
@ -2156,6 +2163,20 @@ static int natsemi_poll(struct net_device *dev, int *budget)
int work_done = 0;
do {
if (netif_msg_intr(np))
printk(KERN_DEBUG
"%s: Poll, status %#08x, mask %#08x.\n",
dev->name, np->intr_status,
readl(ioaddr + IntrMask));
/* netdev_rx() may read IntrStatus again if the RX state
* machine falls over so do it first. */
if (np->intr_status &
(IntrRxDone | IntrRxIntr | RxStatusFIFOOver |
IntrRxErr | IntrRxOverrun)) {
netdev_rx(dev, &work_done, work_to_do);
}
if (np->intr_status &
(IntrTxDone | IntrTxIntr | IntrTxIdle | IntrTxErr)) {
spin_lock(&np->lock);
@ -2167,12 +2188,6 @@ static int natsemi_poll(struct net_device *dev, int *budget)
if (np->intr_status & IntrAbnormalSummary)
netdev_error(dev, np->intr_status);
if (np->intr_status &
(IntrRxDone | IntrRxIntr | RxStatusFIFOOver |
IntrRxErr | IntrRxOverrun)) {
netdev_rx(dev, &work_done, work_to_do);
}
*budget -= work_done;
dev->quota -= work_done;
@ -2399,19 +2414,8 @@ static struct net_device_stats *get_stats(struct net_device *dev)
#ifdef CONFIG_NET_POLL_CONTROLLER
static void natsemi_poll_controller(struct net_device *dev)
{
struct netdev_private *np = netdev_priv(dev);
disable_irq(dev->irq);
/*
* A real interrupt might have already reached us at this point
* but NAPI might still haven't called us back. As the interrupt
* status register is cleared by reading, we should prevent an
* interrupt loss in this case...
*/
if (!np->intr_status)
intr_handler(dev->irq, dev);
intr_handler(dev->irq, dev);
enable_irq(dev->irq);
}
#endif
@ -3071,7 +3075,7 @@ static void enable_wol_mode(struct net_device *dev, int enable_intr)
* Could be used to send a netlink message.
*/
writel(WOLPkt | LinkChange, ioaddr + IntrMask);
writel(1, ioaddr + IntrEnable);
natsemi_irq_enable(dev);
}
}
@ -3202,7 +3206,7 @@ static int natsemi_suspend (struct pci_dev *pdev, pm_message_t state)
disable_irq(dev->irq);
spin_lock_irq(&np->lock);
writel(0, ioaddr + IntrEnable);
natsemi_irq_disable(dev);
np->hands_off = 1;
natsemi_stop_rxtx(dev);
netif_stop_queue(dev);

1
drivers/net/netxen/netxen_nic.h
View File

@ -232,6 +232,7 @@ enum {
#define MPORT_SINGLE_FUNCTION_MODE 0x1111
extern unsigned long long netxen_dma_mask;
extern unsigned long last_schedule_time;
/*
* NetXen host-peg signal message structure

1
drivers/net/netxen/netxen_nic_ethtool.c
View File

@ -462,6 +462,7 @@ netxen_nic_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
}
printk(KERN_INFO "%s: flash unlocked. \n",
netxen_nic_driver_name);
last_schedule_time = jiffies;
ret = netxen_flash_erase_secondary(adapter);
if (ret != FLASH_SUCCESS) {
printk(KERN_ERR "%s: Flash erase failed.\n",

5
drivers/net/netxen/netxen_nic_hw.c
View File

@ -822,7 +822,10 @@ int netxen_nic_set_mtu_xgb(struct netxen_port *port, int new_mtu)
{
struct netxen_adapter *adapter = port->adapter;
new_mtu += NETXEN_NIU_HDRSIZE + NETXEN_NIU_TLRSIZE;
netxen_nic_write_w0(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE, new_mtu);
if (port->portnum == 0)
netxen_nic_write_w0(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE, new_mtu);
else if (port->portnum == 1)
netxen_nic_write_w0(adapter, NETXEN_NIU_XG1_MAX_FRAME_SIZE, new_mtu);
return 0;
}

11
drivers/net/netxen/netxen_nic_init.c
View File

@ -42,6 +42,8 @@ struct crb_addr_pair {
u32 data;
};
unsigned long last_schedule_time;
#define NETXEN_MAX_CRB_XFORM 60
static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
#define NETXEN_ADDR_ERROR (0xffffffff)
@ -404,9 +406,14 @@ static inline int do_rom_fast_write(struct netxen_adapter *adapter, int addr,
static inline int
do_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
{
if (jiffies > (last_schedule_time + (8 * HZ))) {
last_schedule_time = jiffies;
schedule();
}
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
udelay(70); /* prevent bursting on CRB */
udelay(100); /* prevent bursting on CRB */
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
if (netxen_wait_rom_done(adapter)) {
@ -415,7 +422,7 @@ do_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
}
/* reset abyte_cnt and dummy_byte_cnt */
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
udelay(70); /* prevent bursting on CRB */
udelay(100); /* prevent bursting on CRB */
netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
*valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA);

28
drivers/net/skge.c
View File

@ -3275,24 +3275,30 @@ static int skge_set_mac_address(struct net_device *dev, void *p)
struct skge_hw *hw = skge->hw;
unsigned port = skge->port;
const struct sockaddr *addr = p;
u16 ctrl;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
mutex_lock(&hw->phy_mutex);
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
memcpy_toio(hw->regs + B2_MAC_1 + port*8,
dev->dev_addr, ETH_ALEN);
memcpy_toio(hw->regs + B2_MAC_2 + port*8,
dev->dev_addr, ETH_ALEN);
if (hw->chip_id == CHIP_ID_GENESIS)
xm_outaddr(hw, port, XM_SA, dev->dev_addr);
else {
gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
/* disable Rx */
ctrl = gma_read16(hw, port, GM_GP_CTRL);
gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA);
memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
if (netif_running(dev)) {
if (hw->chip_id == CHIP_ID_GENESIS)
xm_outaddr(hw, port, XM_SA, dev->dev_addr);
else {
gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
}
}
mutex_unlock(&hw->phy_mutex);
gma_write16(hw, port, GM_GP_CTRL, ctrl);
return 0;
}