freebsd-nq/sys/dev/le
Marius Strobl 0c05ab41ab - In the interrupt handler clear the interrupt source flags before
processing the interrupt events. If we clear them afterwards we
  can completely miss some events as the NIC can change the source
  flags while we're in the handler. In order to not get another
  interrupt while we're in ifp->if_input() with the driver lock
  dropped we now turn off NIC interrupts while in the interrupt
  handler. Previously this was meant to be achieved by clearing the
  interrupt source flags after processing the interrupt events but
  didn't really work as clearing these flags doesn't actually
  acknowledge and re-enable the events.
  This fixes the device timeouts seen with the VMware LANCE.
- Relax the watchdog timer somewhat; don't enable it until the last
  packet is enqueued and if there is a TX interrupt but there are
  still outstanding ones reload the timer.

Reported and tested by:	Morten Rodal <morten@rodal.no>
MFC after:		3 days
2006-02-21 20:20:43 +00:00
..
am7990.c
am7990reg.h
am7990var.h
am79900.c
am79900reg.h
am79900var.h
if_le_ledma.c
if_le_pci.c
lance.c
lancereg.h
lancevar.h