net: ena: fix bug that might cause hang after consecutive open/close interface.

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Fixing a bug that the driver does not unmask the IO interrupts
in ndo_open():
occasionally, the MSI-X interrupt (for one or more IO queues)
can be masked when ndo_close() was called.
If that is followed by ndo open(),
then the MSI-X will be still masked so no interrupt
will be received by the driver.

Fixes: 1738cd3ed3 ("Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Netanel Belgazal 2017-06-11 15:42:44 +03:00 • committed by David S. Miller

parent a77c1aafcc

commit 418df30f7e

1 changed files with 26 additions and 15 deletions

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drivers/net/ethernet/amazon/ena/ena_netdev.c

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