diff options
| author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-07-09 15:33:33 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-07-10 12:22:28 -0400 |
| commit | c59697e06058fc2361da8cefcfa3de85ac107582 (patch) | |
| tree | fcbfb85875428b329ddae08901e050d90be0a0bb /drivers/net | |
| parent | 71780f59e127bb281a9302d430495ca9586c14e7 (diff) | |
sky2: restore workarounds for lost interrupts
This patch restores a couple of workarounds from 2.6.16:
* restart transmit moderation timer in case it expires during IRQ routine
* default to having 10 HZ watchdog timer.
At this point it more important not to hang than to worry about the
power cost.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/sky2.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index b51d73c8f81..77abf892e4f 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -96,7 +96,7 @@ static int disable_msi = 0; module_param(disable_msi, int, 0); MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)"); -static int idle_timeout = 0; +static int idle_timeout = 100; module_param(idle_timeout, int, 0); MODULE_PARM_DESC(idle_timeout, "Watchdog timer for lost interrupts (ms)"); @@ -2490,6 +2490,13 @@ static int sky2_poll(struct net_device *dev0, int *budget) work_done = sky2_status_intr(hw, work_limit); if (work_done < work_limit) { + /* Bug/Errata workaround? + * Need to kick the TX irq moderation timer. + */ + if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_START) { + sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); + sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); + } netif_rx_complete(dev0); /* end of interrupt, re-enables also acts as I/O synchronization */ |