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27d4dc7116
linux/drivers/misc
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Vaibhav Jain 27d4dc7116 cxl: Implement an ioctl to fetch afu card-id, offset-id and mode 
Given a file descriptor on an afu device, libcxl currently uses the
major/minor number obtained from fstat on the fd to construct path to
the afu's sysfs directory. However it is possible that rather than using
one of the device in /dev/cxl, a kernel driver creates its own device
which export generic cxl interface to the userspace. This causes
problems with libcxl as it tries to use a wrong major/minor number to
construct the sysfs path and fail.

So this patch introduces a new ioctl called CXL_IOCTL_GET_AFU_ID on the
afu file descriptor to fetch the cxl_afu_id struct that holds the
card/offset-id and mode information. These info is then used by libcxl to
construct the correct path to the afu sysfs directory.

Testing:
	- Build against pseries be/le configs
	- Testing with corresponding libcxl changes to verify that it constructs
	  right sysfs path to the afu.

Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-06-03 13:27:15 +10:00
..
altera-stapl altera-stapl: replace strnicmp with strncasecmp 2014-10-14 02:18:25 +02:00
c2port
carma misc: carma: fixup return type of wait_for_completion_timeout 2015-03-25 11:36:38 +01:00
cb710 mmc: cb710: drop free_irq for devm_request_irq allocated irq 2013-09-26 13:55:30 -07:00
cxl cxl: Implement an ioctl to fetch afu card-id, offset-id and mode 2015-06-03 13:27:15 +10:00
echo staging: echo: move to drivers/misc/ 2014-02-28 14:08:42 -08:00
eeprom Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
genwqe GenWQE: remove unnecessary version.h inclusion 2015-01-12 05:04:11 -08:00
ibmasm
lis3lv02d lis3lv02d: DT: add wakeup unit 2 and wakeup threshold 2015-04-03 16:20:54 +02:00
mei Char/Misc driver patches for 4.1-rc1 2015-04-21 09:42:58 -07:00
mic mic: drop pci_msi_off call on probe 2015-04-03 16:15:30 +02:00
sgi-gru Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next 2014-06-03 15:48:23 -07:00
sgi-xp x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()' 2015-03-23 11:14:17 +01:00
ti-st ti-st: clean up data types (fix harmless memory corruption) 2015-02-03 15:48:51 -08:00
vmw_vmci VMCI: Guard against overflow in queue pair allocation 2015-03-25 11:32:15 +01:00
ad525x_dpot-i2c.c
ad525x_dpot-spi.c ad525x_dpot-spi: Added Blank lines after declarations 2015-01-12 05:04:12 -08:00
ad525x_dpot.c ad525x_dpot:Remove break after return 2015-01-12 05:04:12 -08:00
ad525x_dpot.h
apds990x.c misc / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM 2014-12-05 02:56:02 +01:00
apds9802als.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
arm-charlcd.c misc: drop owner assignment from platform_drivers 2014-10-20 16:20:54 +02:00
atmel_tclib.c ARM: at91/tclib: mask interruptions at shutdown and probe 2014-09-08 10:54:03 +02:00
atmel-ssc.c Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
bh1770glc.c misc / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM 2014-12-05 02:56:02 +01:00
bh1780gli.c misc: bh1780: Add module aliases 2015-03-16 21:10:28 +01:00
bmp085-i2c.c misc: bmp085: Clean up and enable use of interrupt for completion. 2013-12-04 20:23:51 -08:00
bmp085-spi.c misc: bmp085: Clean up and enable use of interrupt for completion. 2013-12-04 20:23:51 -08:00
bmp085.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
bmp085.h misc: bmp085: Clean up and enable use of interrupt for completion. 2013-12-04 20:23:51 -08:00
cs5535-mfgpt.c misc: drop owner assignment from platform_drivers 2014-10-20 16:20:54 +02:00
ds1682.c misc: (ds1682) replace obsolete simple_strtoull() with kstrtoull() 2014-05-03 19:26:24 -04:00
dummy-irq.c Add MODULE_DESCRIPTION to dummy-irq.c and lkdtm.c in drivers/misc 2014-07-09 14:19:34 -07:00
enclosure.c enclosure: fix WARN_ON removing an adapter in multi-path devices 2015-03-31 08:53:36 +03:00
fsa9480.c treewide: fix comments and printk msgs 2014-01-07 15:06:07 +01:00
hmc6352.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
hpilo.c
hpilo.h
ics932s401.c
ioc4.c misc: ioc4: simplify wave period measurement in clock_calibrate 2015-01-12 05:04:11 -08:00
isl29003.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
isl29020.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
Kconfig ARM: at91/Kconfig: remove unused config options 2014-11-19 11:39:23 +01:00
kgdbts.c
lattice-ecp3-config.c misc: lattice-ecp3-config: Add missing MODULE_FIRMWARE() 2014-09-23 23:04:17 -07:00
lkdtm.c Add MODULE_DESCRIPTION to dummy-irq.c and lkdtm.c in drivers/misc 2014-07-09 14:19:34 -07:00
Makefile cxl: Add base builtin support 2014-10-08 20:15:56 +11:00
pch_phub.c pch_phub: Build context save/restore only for PM 2014-11-07 10:28:36 -08:00
phantom.c misc: phantom: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
pti.c
spear13xx_pcie_gadget.c pcie-gadget-spear: use devm_ functions 2014-09-23 23:04:17 -07:00
sram.c misc: sram: switch to ioremap_wc from ioremap 2015-03-16 21:11:32 +01:00
ti_dac7512.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
tifm_7xx1.c misc: tifm: match return type of wait_for_completion_timeout 2015-03-25 11:36:38 +01:00
tifm_core.c tifm: convert bus code to use dev_groups 2013-10-16 18:40:58 -07:00
tsl2550.c drivers/misc: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
vexpress-syscfg.c ARM: vexpress: Remove non-DT code 2014-11-28 16:08:16 +01:00
vmw_balloon.c MAINTAINERS: add entry for VMware Balloon driver 2014-06-20 11:47:33 -07:00