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net: stmmac: dwmac4: Read the UC filter size from hardware capabilities

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dwmac4 has multiple banks of perfect filter entries, independently
configurable during IP integration.

The multi_addr bank reports a number between 0 and 31 corresponding to
the actual number of entries in that bank, while the 32 and 64 banks
are all-or-nothing.

Expose these caps over debugfs as well.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Link: https://patch.msgid.link/20260831070121.349778-2-maxime.chevallier@bootlin.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Maxime Chevallier 2026-08-31 09:01:19 +02:00 • committed by Paolo Abeni
commit 384ee2379a
4 changed files with 19 additions and 1 deletions
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