Kohei Enju f017156aea net: ena: return 0 in ena_get_rxfh_key_size() when RSS hash key is not configurable ... 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 6a4f7dc82d ("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: 6a4f7dc82d ("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>		2025-09-29 18:33:53 -07:00
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ena	net: ena: return 0 in ena_get_rxfh_key_size() when RSS hash key is not configurable	2025-09-29 18:33:53 -07:00
Kconfig	net: ena: Add device reload capability through devlink	2025-06-18 18:57:28 -07:00
Makefile	…