diff options
| author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-07-09 12:01:31 -0700 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2007-08-15 10:02:35 +0200 |
| commit | 0aa15e9be1e01b76999121cc050c837f17964a30 (patch) | |
| tree | 3f378bdacad201f8ef30c8515f0361b7355d60ac | |
| parent | c18580083923eb018b7f9157c061f2a655a342c3 (diff) | |
| download | kernel-common-0aa15e9be1e01b76999121cc050c837f17964a30.tar.gz kernel-common-0aa15e9be1e01b76999121cc050c837f17964a30.tar.bz2 kernel-common-0aa15e9be1e01b76999121cc050c837f17964a30.zip | |
[PATCH] sky2: workaround for lost IRQ
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>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -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 38e75cf6217f..aec8c59e9263 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -95,7 +95,7 @@ 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)"); @@ -2341,6 +2341,13 @@ 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); sky2_read32(hw, B0_Y2_SP_LISR); |