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linux-next/drivers/net/ethernet/emulex
Sathya Perla 0b545a6291 be2net: fix a possible events_get() race on BE2
On BE2 chip, an interrupt being raised even when EQ is in un-armed state has
been observed a few times.  This is not expected and has never been
observed on BE3/Lancer chips.

As a consequence, be_msix()::events_get() and be_poll()::events_get()
can race and notify an EQ wrongly causing a CEV UE. The other possible
side-effect would be traffic stalling because after notifying EQ,
napi_schedule() is ignored as NAPI is already running.

This patch fixes this issue by counting events only in be_poll().

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-23 14:26:08 -05:00
..
benet be2net: fix a possible events_get() race on BE2 2012-11-23 14:26:08 -05:00
Kconfig net: Remove bogus dependencies on INET 2012-11-19 19:13:59 -05:00
Makefile be2net: Move the Emulex driver 2011-08-11 02:33:55 -07:00