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| author | raghavendra.koushik@neterion.com | 2005-08-03 21:34:11 +0200 |
|---|---|---|
| committer | Jeff Garzik | 2005-08-11 06:10:45 +0200 |
| commit | 25fff88eb7dbc63e03f1766e130515900d440dbb (patch) | |
| tree | 8ca0644a07520e4b2beec8caf7d9ba091ef50299 /drivers | |
| parent | [PATCH] S2io: Support for runtime MTU change (diff) | |
| download | kernel-qcow2-linux-25fff88eb7dbc63e03f1766e130515900d440dbb.tar.gz kernel-qcow2-linux-25fff88eb7dbc63e03f1766e130515900d440dbb.tar.xz kernel-qcow2-linux-25fff88eb7dbc63e03f1766e130515900d440dbb.zip | |
[PATCH] S2io: Timer based slowpath handling
Hi,
This patch implements the slow-path handling functions(link
state change, hardware errors) as a timer. It is not
handled in interrupt handler as was done previously.
Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Raghavendra Koushik <raghavendra.koushik@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/s2io.c | 22 | ||||
| -rw-r--r-- | drivers/net/s2io.h | 4 |
2 files changed, 23 insertions, 3 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index aff1fb74e14b..ee498d248d38 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -168,6 +168,12 @@ static char ethtool_stats_keys[][ETH_GSTRING_LEN] = { #define S2IO_TEST_LEN sizeof(s2io_gstrings) / ETH_GSTRING_LEN #define S2IO_STRINGS_LEN S2IO_TEST_LEN * ETH_GSTRING_LEN +#define S2IO_TIMER_CONF(timer, handle, arg, exp) \ + init_timer(&timer); \ + timer.function = handle; \ + timer.data = (unsigned long) arg; \ + mod_timer(&timer, (jiffies + exp)) \ + /* * Constants to be programmed into the Xena's registers, to configure * the XAUI. @@ -2741,6 +2747,7 @@ int s2io_open(struct net_device *dev) setting_mac_address_failed: free_irq(sp->pdev->irq, dev); isr_registration_failed: + del_timer_sync(&sp->alarm_timer); s2io_reset(sp); hw_init_failed: return err; @@ -2898,6 +2905,15 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev) return 0; } +static void +s2io_alarm_handle(unsigned long data) +{ + nic_t *sp = (nic_t *)data; + + alarm_intr_handler(sp); + mod_timer(&sp->alarm_timer, jiffies + HZ / 2); +} + /** * s2io_isr - ISR handler of the device . * @irq: the irq of the device. @@ -2942,9 +2958,6 @@ static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs) return IRQ_NONE; } - if (reason & (GEN_ERROR_INTR)) - alarm_intr_handler(sp); - #ifdef CONFIG_S2IO_NAPI if (reason & GEN_INTR_RXTRAFFIC) { if (netif_rx_schedule_prep(dev)) { @@ -4394,6 +4407,7 @@ static void s2io_card_down(nic_t * sp) unsigned long flags; register u64 val64 = 0; + del_timer_sync(&sp->alarm_timer); /* If s2io_set_link task is executing, wait till it completes. */ while (test_and_set_bit(0, &(sp->link_state))) { msleep(50); @@ -4496,6 +4510,8 @@ static int s2io_card_up(nic_t * sp) return -ENODEV; } + S2IO_TIMER_CONF(sp->alarm_timer, s2io_alarm_handle, sp, (HZ/2)); + atomic_set(&sp->card_state, CARD_UP); return 0; } diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h index ce9bf6d5ee00..263fe7a1b903 100644 --- a/drivers/net/s2io.h +++ b/drivers/net/s2io.h @@ -624,6 +624,9 @@ struct s2io_nic { struct tasklet_struct task; volatile unsigned long tasklet_status; + /* Timer that handles I/O errors/exceptions */ + struct timer_list alarm_timer; + /* Space to back up the PCI config space */ u32 config_space[256 / sizeof(u32)]; @@ -819,6 +822,7 @@ static int s2io_poll(struct net_device *dev, int *budget); #endif static void s2io_init_pci(nic_t * sp); int s2io_set_mac_addr(struct net_device *dev, u8 * addr); +static void s2io_alarm_handle(unsigned long data); static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs); static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag); static struct ethtool_ops netdev_ethtool_ops; |