netdevsim: support reporting RSS key, indirection table, and flow hash fields

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Initialize a per-device RSS key in nsim_ethtool_init() using
netdev_rss_key_fill() and wire up get_rxfh_key_size, get_rxfh_indir_size,
get_rxfh, and get_rxfh_fields on nsim_ethtool_ops.

This allows RSS selftests under tools/testing/selftests/drivers/net/ to
exercise both /proc/sys/net/core/netdev_rss_key and ethtool netlink RSS
reporting against netdevsim without requiring physical hardware.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260922163458.3900996-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Eric Dumazet 2026-09-22 16:34:57 +00:00 • committed by Jakub Kicinski

parent 898d431abd

commit 5fd4208098

2 changed files with 56 additions and 0 deletions

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53

drivers/net/netdevsim/ethtool.c

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3

drivers/net/netdevsim/netdevsim.h

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