netdev - [PATCH net-next v3 0/8] drivers: net: Convert EEE handling to use linkmode bitmaps

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Message-Id: <20240217-keee-u32-cleanup-v3-0-fcf6b62a0c7f@lunn.ch>
Date: Sat, 17 Feb 2024 12:08:21 -0600
From: Andrew Lunn <andrew@...n.ch>
To: "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Ariel Elior <aelior@...vell.com>, 
 Manish Chopra <manishc@...vell.com>, 
 Jesse Brandeburg <jesse.brandeburg@...el.com>, 
 Tony Nguyen <anthony.l.nguyen@...el.com>
Cc: linux-usb@...r.kernel.org, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, intel-wired-lan@...ts.osuosl.org, 
 Andrew Lunn <andrew@...n.ch>, Jacob Keller <jacob.e.keller@...el.com>
Subject: [PATCH net-next v3 0/8] drivers: net: Convert EEE handling to use
 linkmode bitmaps

EEE has until recently been limited to lower speeds due to the use of
the legacy u32 for link speeds. This restriction has been lifted, with
the use of linkmode bitmaps, added in the following patches:

1f069de63602 ethtool: add linkmode bitmap support to struct ethtool_keee
1d756ff13da6 ethtool: add suffix _u32 to legacy bitmap members of struct ethtool_keee
285cc15cc555 ethtool: adjust struct ethtool_keee to kernel needs
0b3100bc8fa7 ethtool: switch back from ethtool_keee to ethtool_eee for ioctl
d80a52335374 ethtool: replace struct ethtool_eee with a new struct ethtool_keee on kernel side

This patchset converts some MAC drivers still using the old _u32 to
link modes, with the aim of soon being able to remove the legacy _u32
members in the keee structure.

A couple of Intel drivers do odd things with EEE, setting the autoneg
bit. It is unclear why, no other driver does, ethtool does not display
it, and EEE is always negotiated. One patch in this series deletes
this code. Comments on why its actually useful and should be kept are
gratefully received.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
Changes in v3:
- Add list of commits adding linkmodes to EEE to cover letter
- Fix grammar error in cover letter.
- Add Reviewed-by from Jacob Keller
- Link to v2: https://lore.kernel.org/r/20240214-keee-u32-cleanup-v2-0-4ac534b83d66@lunn.ch

Changes in v2:
- igb: Fix type 100BaseT to 1000BaseT.
- Link to v1: https://lore.kernel.org/r/20240204-keee-u32-cleanup-v1-0-fb6e08329d9a@lunn.ch

---
Andrew Lunn (8):
      net: usb: r8152: Use linkmode helpers for EEE
      net: usb: ax88179_178a: Use linkmode helpers for EEE
      net: qlogic: qede: Use linkmode helpers for EEE
      net: ethernet: ixgbe: Convert EEE to use linkmodes
      net: intel: i40e/igc: Remove setting Autoneg in EEE capabilities
      net: intel: e1000e: Use linkmode helpers for EEE
      net: intel: igb: Use linkmode helpers for EEE
      net: intel: igc: Use linkmode helpers for EEE

 drivers/net/ethernet/intel/e1000e/ethtool.c      | 17 +++++--
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c   |  7 +--
 drivers/net/ethernet/intel/igb/igb_ethtool.c     | 33 ++++++++-----
 drivers/net/ethernet/intel/igc/igc_ethtool.c     | 13 ++---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 48 ++++++++++---------
 drivers/net/ethernet/qlogic/qede/qede_ethtool.c  | 60 +++++++++++++++---------
 drivers/net/usb/Kconfig                          |  1 +
 drivers/net/usb/ax88179_178a.c                   |  9 ++--
 drivers/net/usb/r8152.c                          | 31 ++++++------
 9 files changed, 123 insertions(+), 96 deletions(-)
---
base-commit: dfe7f12788f5428d8bc16e86eedcfa889a3e3b29
change-id: 20240204-keee-u32-cleanup-b86d68458d80

Best regards,
-- 
Andrew Lunn <andrew@...n.ch>