linux

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History

Andrew Donnellan 7d1647dc4b cxl: abort cxl_pci_enable_device_hook() if PCI channel is offline

cxl_pci_enable_device_hook() is called when attempting to enable an AFU
sitting on a vPHB. At present, the state of the underlying CXL card's PCI
channel is only checked when it calls cxl_afu_check_and_enable() at the
very end, after it has already set DMA options and initialised a default
context.

Check the CXL card's link status before setting DMA options or initialising
a default context. If the link is down, print a warning and return
immediately.

Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2015-09-07 20:14:24 +10:00

api.c

cxl: Fix force unmapping mmaps of contexts allocated through the kernel api

2015-08-30 18:47:26 +10:00

base.c

cxl: Move include file cxl.h -> cxl-base.h

2015-06-03 13:27:19 +10:00

context.c

cxl: Fix force unmapping mmaps of contexts allocated through the kernel api

2015-08-30 18:47:26 +10:00

cxl.h

cxl: Set up and enable PSL Timebase