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author | Helge Deller <deller@gmx.de> | 2018-03-25 14:04:22 +0200 |
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committer | Helge Deller <deller@gmx.de> | 2018-03-27 18:52:22 +0200 |
commit | b845f66f78bf42a4ce98e5cfe0e94fab41dd0742 (patch) | |
tree | f146133732045dcdf83ec6434a587a447c418c5a /arch | |
parent | d5654e156bc4d68a87bbaa6d7e020baceddf6e68 (diff) | |
download | linux-b845f66f78bf42a4ce98e5cfe0e94fab41dd0742.tar.bz2 |
parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
Carlo Pisani noticed that his C3600 workstation behaved unstable during heavy
I/O on the PCI bus with a VIA VT6421 IDE/SATA PCI card.
To avoid such instability, this patch switches the LBA PCI bus from Hard Fail
mode into Soft Fail mode. In this mode the bus will return -1UL for timed out
MMIO transactions, which is exactly how the x86 (and most other architectures)
PCI busses behave.
This patch is based on a proposal by Grant Grundler and Kyle McMartin 10
years ago:
https://www.spinics.net/lists/linux-parisc/msg01027.html
Cc: Carlo Pisani <carlojpisani@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Reviewed-by: Grant Grundler <grantgrundler@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions