[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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