netdev - [PATCH net v3 0/3] Fix a regression in the Gemini ethernet controller.

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Date: Thu, 21 Dec 2023 01:02:19 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Hans Ulli Kroll <ulli.kroll@...glemail.com>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, Linus Walleij <linus.walleij@...aro.org>, 
 Maxime Chevallier <maxime.chevallier@...tlin.com>
Subject: [PATCH net v3 0/3] Fix a regression in the Gemini ethernet
 controller.

These fixes were developed on top of the earlier fixes.

Finding the right solution is hard because the Gemini checksumming
engine is completely undocumented in the datasheets.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
Changes in v3:
- Fix a whitespace bug in the first patch.
- Add generic accessors to obtain the raw ethertype of an
  ethernet frame. VLAN already have the right accessors.
- Link to v2: https://lore.kernel.org/r/20231216-new-gemini-ethernet-regression-v2-0-64c269413dfa@linaro.org

Changes in v2:
- Drop the TSO and length checks altogether, this was never
  working properly.
- Plan to make a proper TSO implementation in the next kernel
  cycle.
- Link to v1: https://lore.kernel.org/r/20231215-new-gemini-ethernet-regression-v1-0-93033544be23@linaro.org

---
Linus Walleij (3):
      net: ethernet: cortina: Drop software checksum and TSO
      if_ether: Add an accessor to read the raw ethertype
      net: ethernet: cortina: Bypass checksumming engine of alien ethertypes

 drivers/net/ethernet/cortina/gemini.c | 34 ++++++++++++++++++----------------
 include/linux/if_ether.h              | 16 ++++++++++++++++
 2 files changed, 34 insertions(+), 16 deletions(-)
---
base-commit: 33cc938e65a98f1d29d0a18403dbbee050dcad9a
change-id: 20231203-new-gemini-ethernet-regression-3c672de9cfd9

Best regards,
-- 
Linus Walleij <linus.walleij@...aro.org>