Thread (9 messages) 9 messages, 2 authors, 7d ago
COOLING7d
Revisions (2)
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  2. v2 [diff vs current]

[PATCH net-next 0/2] net: dsa: mv88e6xxx: 6141/6341 workarounds

From: Luke Howard <hidden>
Date: 2026-07-03 06:43:06
Also in: lkml

This patch series addresses two issues I found with the 88E6341
switch, which likely also apply to the 88E6141 (which is the same
chip without AVB/TSN support).

The first was a genuine bug, which assumed the chip did not have
a dedicated ATU FID register (it does).

The other is an issue I noticed with hash collisions in the ATU.
I would appreciate some external testing before this commit is
reviewed, but I am including it as it was necessary for reliable
operation with multiple FIDs.

Signed-off-by: Luke Howard <redacted>
---
Luke Howard (2):
      net: dsa: mv88e6xxx: write the ATU FID register on 88E6141/88E6341
      net: dsa: mv88e6xxx: use direct ATU hash on 88E6141/6341

 drivers/net/dsa/mv88e6xxx/chip.c        | 14 ++++++++++++++
 drivers/net/dsa/mv88e6xxx/chip.h        |  1 +
 drivers/net/dsa/mv88e6xxx/global1.h     |  6 +++++-
 drivers/net/dsa/mv88e6xxx/global1_atu.c |  4 ++--
 4 files changed, 22 insertions(+), 3 deletions(-)
---
base-commit: 1c664ec4b9ea827b609d296921ed5bad8a40a158
change-id: 20260624-mv88e6x41-fixes-d4c84f955ebc

Best regards,
--  
Luke Howard [off-list ref]
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