Re: [PATCH net-next v4] net: pcs: lynx: enable autonegotiation for 10g-qxgmii and usxgmii

On Wed, Sep 23, 2026 at 06:14:12PM +0200, Patryk Biel wrote:

The Lynx PCS setup for 10g-qxgmii and usxgmii programs the
USXGMII replicator advertisement, but does not explicitly enable and
restart in-band autonegotiation or program the replicator link timers.

This leaves the PCS dependent on firmware or bootloader state. Systems
which do not get the USXGMII replicator preconfigured before Linux may
therefore fail to negotiate the link correctly.

After programming the USXGMII device ability, configure the replicator
BMCR with reset, autonegotiation enable and autonegotiation restart. Also
program the replicator link timer registers using the value returned by
phylink_get_link_timer_ns().

Co-developed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Patryk Biel <redacted>
---

You are supposed to carry over the received tags from previous patch
versions. In this case I'll just resend them myself to this version, so
you need to do nothing further, just keep that in mind for the future.

Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>