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| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2012-11-29 13:35:47 (GMT) |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-11-30 16:47:25 (GMT) |
| commit | 7441b0627e2251370902305a204e1330a696ca04 (patch) | |
| tree | d3a36466a8517f8b889b6f0037f15280e33302d4 /drivers/pci/hotplug/Kconfig | |
| parent | cbc0dd1f856b52b59c2c73a477b6cb210c8c66ad (diff) | |
| download | linux-fsl-qoriq-7441b0627e2251370902305a204e1330a696ca04.tar.xz | |
s390/pci: PCI hotplug support via SCLP
Add SCLP PCI configure/deconfigure and implement a PCI hotplug
controller (s390_pci_hpc). The hotplug controller creates a slot
for every PCI function in stand-by or configured state. The PCI
functions are named after the PCI function ID (fid). By writing to
the power attribute in /sys/bus/pci/slots/<fid>/power the PCI function
is moved to stand-by or configured state. If moved to the configured
state the device is automatically scanned by the s390 PCI layer.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/pci/hotplug/Kconfig')
| -rw-r--r-- | drivers/pci/hotplug/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index b0e46de..13e9e63 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -151,4 +151,15 @@ config HOTPLUG_PCI_SGI When in doubt, say N. +config HOTPLUG_PCI_S390 + tristate "System z PCI Hotplug Support" + depends on S390 && 64BIT + help + Say Y here if you want to use the System z PCI Hotplug + driver for PCI devices. Without this driver it is not + possible to access stand-by PCI functions nor to deconfigure + PCI functions. + + When in doubt, say Y. + endif # HOTPLUG_PCI |