net: ena: fix incorrect default RSS key

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[ Upstream commit 0d1c3de7b8 ]

Bug description:
When running "ethtool -x <if_name>" the key shows up as all zeros.

When we use "ethtool -X <if_name> hfunc toeplitz hkey <some:random:key>" to
set the key and then try to retrieve it using "ethtool -x <if_name>" then
we return the correct key because we return the one we saved.

Bug cause:
We don't fetch the key from the device but instead return the key
that we have saved internally which is by default set to zero upon
allocation.

Fix:
This commit fixes the issue by initializing the key to a random value
using netdev_rss_key_fill().

Fixes: 1738cd3ed3 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Arthur Kiyanovski 2020-02-11 15:17:43 +00:00 • committed by Greg Kroah-Hartman

parent d57a0727e4

commit 5dfbf5d0aa

2 changed files with 16 additions and 0 deletions

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15

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

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1

drivers/net/ethernet/amazon/ena/ena_com.h

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