[Intel-wired-lan] [PATCH] ixgbe: Acquire PHY semaphore before device reset

Bowers, AndrewX andrewx.bowers at intel.com
Fri Mar 24 19:47:59 UTC 2017


> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at lists.osuosl.org] On
> Behalf Of Paul Greenwalt
> Sent: Monday, March 13, 2017 2:48 AM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH] ixgbe: Acquire PHY semaphore before
> device reset
> 
> A recent firmware change fixed an issue to acquire the PHY semaphore
> before accessing PHY registers. This led to a case where  SW can issue a
> device reset clearing the MDIO registers. This patch makes SW acquire the
> PHY semaphore before issuing a device reset.
> 
> Signed-off-by: Paul Greenwalt <paul.greenwalt at intel.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c | 8 ++++++++
> drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 8 ++++++++
>  2 files changed, 16 insertions(+)

Tested-by: Andrew Bowers <andrewx.bowers at intel.com>




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