[Intel-wired-lan] [PATCH] ixgbe-shared: Clear SWFW_SYNC register during init

[Bowers, AndrewX]

> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Emil Tantilov
> Sent: Wednesday, July 5, 2017 3:48 PM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH] ixgbe-shared: Clear SWFW_SYNC register
> during init
> 
> Added clearing of SW resource bits in the SW/FW synchronization register to
> ixgbe_init_swfw_sync_X540().
> 
> Updated ixgbe_acquire_swfw_sync_X540 SW Manageability host interface
> resource bit error case to match the error handling of the other SW resource
> bits. Which is to release the SW resource bits if SW times out while
> attempting to acquire the resource.
> 
> This allows the driver to load in cases where the semaphore bits could be
> stuck after a reset or a crash.
> 
> Signed-off-by: Emil Tantilov <emil.s.tantilov at intel.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c |   19 ++++++++++++-------
>  1 file changed, 12 insertions(+), 7 deletions(-)

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