[Intel-wired-lan] [PATCH iwl-net v3 1/1] e1000e: Workaround for sporadic MDI error on Meteor Lake systems

[Tony Nguyen]

On 12/27/2023 2:33 AM, Vitaly Lifshits wrote:
> On some Meteor Lake systems accessing the PHY via the MDIO interface may
> result in an MDI error. This issue happens sporadically and in most cases
> a second access to the PHY via the MDIO interface results in success.
> 
> As a workaround, introduce a retry counter which is set to 3 on Meteor
> Lake systems. The driver will only return an error if 3 consecutive PHY
> access attempts fail. The retry mechanism is disabled in specific flows,
> where MDI errors are expected.
> 
> Fixes: cc23f4f0b6b9 ("e1000e: Add support for Meteor Lake")
> Suggested-by: Nikolay Mushayev <nikolay.mushayev at intel.com>
> Co-developed-by: Nir Efrati <nir.efrati at intel.com>
> Signed-off-by: Nir Efrati <nir.efrati at intel.com>
> Signed-off-by: Vitaly Lifshits <vitaly.lifshits at intel.com>
> ---
> v3: rebase to dev-queue branch
> v2: fix checkpatch errors
> v1: initial version
> ---
>   drivers/net/ethernet/intel/e1000e/hw.h      |   2 +
>   drivers/net/ethernet/intel/e1000e/ich8lan.c |  33 ++++
>   drivers/net/ethernet/intel/e1000e/phy.c     | 186 ++++++++++++--------
>   drivers/net/ethernet/intel/e1000e/phy.h     |   2 +
>   4 files changed, 151 insertions(+), 72 deletions(-)

This patch conflicts with your other patch [1]. In these situations 
please either send the patches together as a series or wait until the 
first is applied before sending the other. I've applied the other patch; 
please rebase and re-send this.

Thanks,
Tony

[1] 
https://lore.kernel.org/intel-wired-lan/20231227103154.177094-1-vitaly.lifshits@intel.com/