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authorMike Mason <mmlnx@us.ibm.com>2009-07-31 00:33:21 +0200
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-09-09 22:29:37 +0200
commit260d703adc5f275e3ba7ddff6e2e0217bc613b35 (patch)
treeb91dbf65c67dcd1d7349e5b8df6128ffcd1389c4 /Documentation/PCI
parentPCI/GPU: implement VGA arbitration on Linux (diff)
downloadlinux-260d703adc5f275e3ba7ddff6e2e0217bc613b35.tar.xz
linux-260d703adc5f275e3ba7ddff6e2e0217bc613b35.zip
PCI: support for PCI Express fundamental reset
This is the first of three patches that implement a bit field that PCI Express device drivers can use to indicate they need a fundamental reset during error recovery. By default, the EEH framework on powerpc does what's known as a "hot reset" during recovery of a PCI Express device. We've found a case where the device needs a "fundamental reset" to recover properly. The current PCI error recovery and EEH frameworks do not support this distinction. The attached patch (courtesy of Richard Lary) adds a bit field to pci_dev that indicates whether the device requires a fundamental reset during recovery. These patches supersede the previously submitted patch that implemented a fundamental reset bit field. Signed-off-by: Mike Mason <mmlnx@us.ibm.com> Signed-off-by: Richard Lary <rlary@us.ibm.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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