[PATCH 0/2] ath10k: warm reset fixes 2014-05-14

[Michal Kazior]

Hi,

Warm reset was not able to recover from a device
crash so ath10k was falling back to cold reset
which would occasionally hang the system or
generate a data bus error with some device chips.

Warm reset now works a lot more reliably (at least
on my T430). It's able to recover from a "hard"
simulate fw crash and some firmware asserts I've
forced meaning it should recover in most cases
without falling back to the cold reset.

There's still one case of a crash warm reset is
incapable to recover from: IOMMU faults (when
supported and enabled and device tries to access
non-DMA mapped host memory) trigger device crash
and leave CE totally unresponsive before and after
the warm reset.


Michal Kazior (2):
  ath10k: improve warm reset reliability
  ath10k: retry warm reset a few times

 drivers/net/wireless/ath/ath10k/pci.c | 53 +++++++++++++++++++++++++++++++++--
 1 file changed, 50 insertions(+), 3 deletions(-)

-- 
1.8.5.3