Hi Sean,
Please note net-next is currently closed due to the merge window, so
please don't send patches for it. However, feel free to send RFC
patches for net-next so that reviews can still happen.
Thanks!
On Fri, Dec 16, 2022 at 11:48:47AM -0500, Sean Anderson wrote:
> This attempts to address the problems first reported in [1]. Tim has an
> Aquantia phy where the firmware is set up to use "5G XFI" (underclocked
> 10GBASE-R) when rate adapting lower speeds. This results in us
> advertising that we support lower speeds and then failing to bring the
> link up. To avoid this, determine whether to enable rate adaptation
> based on what's programmed by the firmware. This is "the worst choice"
> [2], but we can't really do better until we have more insight into
> what the firmware is doing. At the very least, we can prevent bad
> firmware from causing us to advertise the wrong modes.
>
> Past submissions may be found at [3, 4].
>
> [1] https://lore.kernel.org/netdev/CAJ+vNU3zeNqiGhjTKE8jRjDYR0D7f=iqPLB8phNyA2CWixy7JA@mail.gmail.com/
> [2] https://lore.kernel.org/netdev/20221118171643.vu6uxbnmog4sna65@skbuf/
> [3] https://lore.kernel.org/netdev/20221114210740.3332937-1-sean.anderson@seco.com/
> [4] https://lore.kernel.org/netdev/20221128195409.100873-1-sean.anderson@seco.com/
>
> Changes in v4:
> - Reorganize MDIO defines
> - Fix kerneldoc using - instead of : for parameters
>
> Changes in v3:
> - Update speed register bits
> - Fix incorrect bits for PMA/PMD speed
>
> Changes in v2:
> - Move/rename phylink_interface_max_speed
> - Rework to just validate things instead of modifying registers
>
> Sean Anderson (4):
> net: phy: Move/rename phylink_interface_max_speed
> phy: mdio: Reorganize defines
> net: mdio: Update speed register bits
> phy: aquantia: Determine rate adaptation support from registers
>
> drivers/net/phy/aquantia_main.c | 160 ++++++++++++++++++++++++++++++--
> drivers/net/phy/phy-core.c | 70 ++++++++++++++
> drivers/net/phy/phylink.c | 75 +--------------
> include/linux/phy.h | 1 +
> include/uapi/linux/mdio.h | 109 ++++++++++++++--------
> 5 files changed, 299 insertions(+), 116 deletions(-)
>
> --
> 2.35.1.1320.gc452695387.dirty
>
>
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