linux/drivers/misc/cxl
Frederic Barrat a430739009 cxl: Make vPHB device node match adapter's
On bare-metal, when a device is attached to the cxl card, lsvpd shows
a location code such as (with cxlflash):
     # lsvpd -l sg22
     ...
     *YL U78CB.001.WZS0073-P1-C33-B0-T0-L0
which makes it hard to easily identify the cxl adapter owning the
flash device, since in this example C33 refers to a P8 processor.

lsvpd looks in the parent devices until it finds a location code, so the
device node for the vPHB ends up being used.

By reusing the device node of the adapter for the vPHB, lsvpd shows:
     # lsvpd -l sg16
     ...
     *YL U78C9.001.WZS09XA-P1-C7-B1-T0-L3
where C7 is the PCI slot of the cxl adapter.

On powerVM, the vPHB was already using the adapter device node, so
there's no change there.

Tested by cxlflash on bare-metal and powerVM.

Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-06-16 23:11:30 +10:00
..
api.c cxl: Update process element after allocating interrupts 2016-06-16 23:08:49 +10:00
base.c cxl: Parse device tree and create cxl device(s) at boot 2016-03-09 23:39:59 +11:00
context.c powerpc updates for 4.7 2016-05-20 10:12:41 -07:00
cxl.h cxl: Add support for CAPP DMA mode 2016-06-16 23:10:26 +10:00
debugfs.c cxl: Abstract the differences between the PSL and XSL 2016-06-16 23:08:54 +10:00
fault.c powerpc/mm: Replace _PAGE_USER with _PAGE_PRIVILEGED 2016-05-01 18:32:26 +10:00
file.c cxl: Adapter failure handling 2016-03-09 23:40:00 +11:00
flash.c cxl: static-ify variables to fix sparse warnings 2016-06-16 22:49:27 +10:00
guest.c cxl: Update process element after allocating interrupts 2016-06-16 23:08:49 +10:00
hcalls.c cxl: Add tracepoints around the cxl hcall 2016-03-09 23:40:01 +11:00
hcalls.h cxl: Add guest-specific code 2016-03-09 23:36:52 +11:00
irq.c cxl: Keep IRQ mappings on context teardown 2016-04-27 12:04:31 +10:00
Kconfig cxl: Add CONFIG_CXL_EEH symbol 2015-08-17 13:56:29 +10:00
main.c cxl: Adapter failure handling 2016-03-09 23:40:00 +11:00
Makefile cxl: Support to flash a new image on the adapter from a guest 2016-03-09 23:39:56 +11:00
native.c cxl: Abstract the differences between the PSL and XSL 2016-06-16 23:08:54 +10:00
of.c cxl: Add guest-specific code 2016-03-09 23:36:52 +11:00
pci.c cxl: Add support for CAPP DMA mode 2016-06-16 23:10:26 +10:00
sysfs.c cxl: Allow initialization on timebase sync failures 2016-04-22 21:45:44 +10:00
trace.c cxl: Add tracepoints 2015-01-22 17:31:51 +11:00
trace.h cxl: Add tracepoints around the cxl hcall 2016-03-09 23:40:01 +11:00
vphb.c cxl: Make vPHB device node match adapter's 2016-06-16 23:11:30 +10:00