Re: [PATCH 4/4] brcmfmac: reset PCIe bus on a firmware crash

Arend Van Spriel <arend.vanspriel@xxxxxxxxxxxx> · Wed, 6 Mar 2019 10:08:52 +0100

On 2/26/2019 2:11 PM, Rafał Miłecki wrote:
From: Rafał Miłecki <rafal@xxxxxxxxxx>

This includes bus reset & reloading a firmware. It should be sufficient
for a user space to (setup and) use a wireless device again.

Support for reset on USB & SDIO can be added later.

It should be noted that you end up with a new wiphy instance though. We 
could try to avoid that in subsequent change.

Reviewed-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
---
  .../broadcom/brcm80211/brcmfmac/bus.h         | 10 ++++++
  .../broadcom/brcm80211/brcmfmac/core.c        | 12 +++++++
  .../broadcom/brcm80211/brcmfmac/core.h        |  2 ++
  .../broadcom/brcm80211/brcmfmac/pcie.c        | 35 +++++++++++++++++++
  4 files changed, 59 insertions(+)