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[0/4] brcmfmac: recover PCIe devices from firmware crashes

Message ID 20190226131119.7907-1-zajec5@gmail.com (mailing list archive)
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Series brcmfmac: recover PCIe devices from firmware crashes | expand

Message

Rafał Miłecki Feb. 26, 2019, 1:11 p.m. UTC 
From: Rafał Miłecki <rafal@milecki.pl>

So far PCIe firmware halts / crashes were resulting in massive timeouts
and running out of resources (e.g. slots). There wasn't even a clear
message indicating the problem source.

This patches improves it by:
1) Printing an error
2) Reloading a firmware

After that user can setup interface(s) & use a wireless card again. It
should be much more convenient than reloading a module manually thanks
to:
1) Automation
2) Not affecting other (working) wireless cards

Rafał Miłecki (4):
  brcmfmac: support multiple brcmf_fw_alloc_request() calls
  brcmfmac: get RAM info right before downloading PCIe firmware
  brcmfmac: add function designated for handling firmware failures
  brcmfmac: reset PCIe bus on firmware crash

 .../broadcom/brcm80211/brcmfmac/bus.h         | 12 ++++++
 .../broadcom/brcm80211/brcmfmac/chip.c        |  6 ++-
 .../broadcom/brcm80211/brcmfmac/chip.h        |  1 +
 .../broadcom/brcm80211/brcmfmac/core.c        | 22 ++++++++++
 .../broadcom/brcm80211/brcmfmac/core.h        |  2 +
 .../broadcom/brcm80211/brcmfmac/firmware.c    |  1 +
 .../broadcom/brcm80211/brcmfmac/pcie.c        | 43 ++++++++++++++++++-
 .../broadcom/brcm80211/brcmfmac/sdio.c        |  4 +-
 8 files changed, 86 insertions(+), 5 deletions(-)