[net-next,v4,0/4] net: Introduce QUSGMII phy mode

Message

Maxime Chevallier Aug. 1, 2022, 7:37 a.m. UTC

Hello everyone,

This is the V4 of a previous series [1] initially aimed at introducing
inband extensions, with modes like QUSGMII. This mode allows passing
info in the ethernet preamble between the MAC and the PHY, such s
timestamps.

This series has now become a preliminary series, that simply introduces
the new interface mode, without support for inband extensions, that will
come later.

The reasonning is that work will need to be done in the networking
subsystem, but also in the generic phy driver subsystem to allow serdes
configuration for qusgmii.

This series add the mode, the relevant binding changes, adds support for
it in the lan966x driver, and also introduces a small helper to get the
number of links a given phy mode can carry (think 1 for SGMII and 4 for
QSGMII). This allows for better readability and will prove useful
when (if) we support PSGMII (5 links on 1 interface) and OUSGMII (8
links on one interface).

V4 contains no change but the collected Reviewed-by from Andrew.

Best regards,

Maxime

Maxime Chevallier (4):
  net: phy: Introduce QUSGMII PHY mode
  dt-bindings: net: ethernet-controller: add QUSGMII mode
  net: phy: Add helper to derive the number of ports from a phy mode
  net: lan966x: Add QUSGMII support for lan966x

 .../bindings/net/ethernet-controller.yaml     |  1 +
 Documentation/networking/phy.rst              |  9 ++++
 .../ethernet/microchip/lan966x/lan966x_main.c |  2 +
 .../microchip/lan966x/lan966x_phylink.c       |  3 +-
 .../ethernet/microchip/lan966x/lan966x_port.c | 22 +++++---
 .../ethernet/microchip/lan966x/lan966x_regs.h |  6 +++
 drivers/net/phy/phy-core.c                    | 52 +++++++++++++++++++
 drivers/net/phy/phylink.c                     |  3 ++
 include/linux/phy.h                           |  6 +++
 9 files changed, 97 insertions(+), 7 deletions(-)

Comments

Jakub Kicinski Aug. 2, 2022, 3:21 a.m. UTC | #1

On Mon,  1 Aug 2022 09:37:09 +0200 Maxime Chevallier wrote:
> This is the V4 of a previous series [1] initially aimed at introducing
> inband extensions, with modes like QUSGMII. This mode allows passing
> info in the ethernet preamble between the MAC and the PHY, such s
> timestamps.
> 
> This series has now become a preliminary series, that simply introduces
> the new interface mode, without support for inband extensions, that will
> come later.
> 
> The reasonning is that work will need to be done in the networking
> subsystem, but also in the generic phy driver subsystem to allow serdes
> configuration for qusgmii.
> 
> This series add the mode, the relevant binding changes, adds support for
> it in the lan966x driver, and also introduces a small helper to get the
> number of links a given phy mode can carry (think 1 for SGMII and 4 for
> QSGMII). This allows for better readability and will prove useful
> when (if) we support PSGMII (5 links on 1 interface) and OUSGMII (8
> links on one interface).
> 
> V4 contains no change but the collected Reviewed-by from Andrew.

This series came in after the closing of net-next:

https://lore.kernel.org/all/[e-mail]/

let's defer it until after the merge window.