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Filename Latest commit message Latest commit date
Kohei Enju 49f9f4c5cb net: ena: return 0 in ena_get_rxfh_key_size() when RSS hash key is not configurable
[ Upstream commit f017156aea60db8720e47591ed1e041993381ad2 ]

In EC2 instances where the RSS hash key is not configurable, ethtool
shows bogus RSS hash key since ena_get_rxfh_key_size() unconditionally
returns ENA_HASH_KEY_SIZE.

Commit 6a4f7dc82d1e ("net: ena: rss: do not allocate key when not
supported") added proper handling for devices that don't support RSS
hash key configuration, but ena_get_rxfh_key_size() has been unchanged.

When the RSS hash key is not configurable, return 0 instead of
ENA_HASH_KEY_SIZE to clarify getting the value is not supported.

Tested on m5 instance families.

Without patch:
 # ethtool -x ens5 | grep -A 1 "RSS hash key"
 RSS hash key:
 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00

With patch:
 # ethtool -x ens5 | grep -A 1 "RSS hash key"
 RSS hash key:
 Operation not supported

Fixes: 6a4f7dc82d1e ("net: ena: rss: do not allocate key when not supported")
Signed-off-by: Kohei Enju <enjuk@amazon.com>
Link: https://patch.msgid.link/20250929050247.51680-1-enjuk@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-29 13:59:50 +01:00
arch sparc: fix accurate exception reporting in copy_{from,to}_user for M7 2025-10-29 13:59:49 +01:00
block block: use int to store blk_stack_limits() return value 2025-10-29 13:59:46 +01:00
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drivers net: ena: return 0 in ena_get_rxfh_key_size() when RSS hash key is not configurable 2025-10-29 13:59:50 +01:00
fs ocfs2: fix double free in user_cluster_connect() 2025-10-29 13:59:49 +01:00
include driver core/PM: Set power.no_callbacks along with power.no_pm 2025-10-29 13:59:46 +01:00
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net ipvs: Defer ip_vs_ftp unregister during netns cleanup 2025-10-29 13:59:49 +01:00
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sound ASoC: Intel: bytcr_rt5651: Fix invalid quirk input mapping 2025-10-29 13:59:48 +01:00
tools selftests: watchdog: skip ping loop if WDIOF_KEEPALIVEPING not supported 2025-10-29 13:59:46 +01:00
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