Commit graph

35 commits

Author SHA1 Message Date
Bjoern A. Zeeb
93b14194ac LinuxKPI: disable device_release_driver()
As reported by multiple people testing iwlwifi, device_release_driver()
can lead to a panic on secondary errors (usually during attach).
Disable device_release_driver() for the short-term to prevent the panic
but leave it in place so it can be re-worked and fixed properly for
the long-term more easily.

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2021-09-27 17:45:06 +00:00
Bjoern A. Zeeb
644b4f1176 LinuxKPI: add device_reprobe() and device_release_driver()
Add two new (though untested) functions to linux/device.h which are
dealing with manually managing the device/driver and are used by
at least one wireless driver.  We may have to re-fine them in the
future.
Move the devres declarations further up so they can be used earlier
in the file.

Sponsored by:	The FreeBSD Foundation
MFC after:	10 days
Reviewed by:	imp
Differential Revision: https://reviews.freebsd.org/D30519
2021-06-18 21:20:09 +00:00
Bjoern A. Zeeb
e7a0b68540 LinuxKPI: add dev_crit() to linux/device.h
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Reviewed by:	emaste, hselasky
Differential Revision: https://reviews.freebsd.org/D30424
2021-05-25 18:01:48 +00:00
Hans Petter Selasky
ebe5cf355d Implement basic support for allocating memory from a specific numa node
in the LinuxKPI.

Differential Revision:	https://reviews.freebsd.org/D29077
Reviewed by:	markj@ and kib@
MFC after:	1 week
Sponsored by:	Mellanox Technologies // NVIDIA Networking
2021-03-09 21:01:47 +01:00
Bjoern A. Zeeb
fa765ca73e LinuxKPI: implement devres() framework parts and two examples
This code implements a version of the devres framework found
working for various iwlwifi use cases and also providing functions
for ttm_page_alloc_dma.c from DRM.

Part of the framework replicates the consumed KPI, while others
are internal helper functions.

In addition the simple devm_k*malloc() consumers were implemented
and kvasprintf() was enhanced to also work for the devm_kasprintf()
case.
Addmittingly lkpi_devm_kmalloc_release() could be avoided but for
the overall understanding of the code and possible memory tracing
it may still be helpful.

Further devsres consumer are implemented for iwlwifi but will follow
later as the main reason for this change is to sort out overlap with
DRM.

Sponsored-by:	The FreeBSD Foundation
Obtained-from:	bz_iwlwifi
MFC After:	3 days
Reviewed-by:	hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D28189
2021-01-28 16:32:43 +00:00
Emmanuel Vadot
2b68c97337 linuxkpi: Add backlight support
Add backlight function to linuxkpi.
Graphics drivers expose the backlight of the panel directly so allow them to use the backlight subsystem so
user can use backlight(8) to configure them.

Reviewed by:	hselasky
Relnotes:	yes
Differential Revision:	The FreeBSD Foundation
2020-10-02 18:26:41 +00:00
Hans Petter Selasky
76354fa40f Enable device class group attributes in the LinuxKPI.
Bump the __FreeBSD_version to force recompilation of
external kernel modules due to structure change.

Differential Revision:	https://reviews.freebsd.org/D21564
Submitted by:	Greg V <greg@unrelenting.technology>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2019-11-04 14:19:09 +00:00
Johannes Lundberg
f6668e9f56 LinuxKPI: Improve sysfs support.
- Add functions for creating and merging sysfs groups.
- Add sysfs_streq function to compare strings ignoring newline from the
  sysctl userland call.
- Add a call to sysfs_create_groups in device_add.
- Remove duplicate header include.
- Bump __FreeBSD_version.

Reviewed by:	hselasky
Approved by:	imp (mentor), hselasky
MFC after:	4 days
Differential Revision:	D21542
2019-09-06 15:43:53 +00:00
Hans Petter Selasky
4f109faadc Implement pci_enable_msi() and pci_disable_msi() in the LinuxKPI.
This patch makes the DRM graphics driver in ports usable on aarch64.

Submitted by:	Greg V <greg@unrelenting.technology>
Differential Revision:	https://reviews.freebsd.org/D21008
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2019-08-14 09:36:25 +00:00
Johannes Lundberg
65ff7a3192 LinuxKPI: Add prepare to pm_ops and bump FreeBSD version.
This patch is part of D19565

Reviewed by:	hps
Approved by:	imp (mentor), hps
MFC after:	1 week
2019-05-14 23:50:46 +00:00
Tycho Nightingale
f211d536b6 LinuxKPI should use bus_dma(9) to be compatible with an IOMMU
Reviewed by:	hselasky, kib
Tested by:	greg@unrelenting.technology
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D19845
2019-04-24 20:30:45 +00:00
Hans Petter Selasky
7f36930024 Implement dev_err_once() function macro in the LinuxKPI.
Submitted by:		Johannes Lundberg <johalun0@gmail.com>
MFC after:		1 week
Sponsored by:		Limelight Networks
Sponsored by:		Mellanox Technologies
2019-03-13 17:46:05 +00:00
Hans Petter Selasky
422d8af4df Implement the dev_pm_set_driver_flags() function macro in the LinuxKPI.
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-06-07 11:29:07 +00:00
Ed Maste
8363051739 linuxkpi whitespace cleanup
Reviewed by:	hselasky, markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D14807
2018-03-23 15:50:01 +00:00
Hans Petter Selasky
7353335d1c Move the IRQ_RETVAL() and irqreturn definitions to irqreturn.h in the
LinuxKPI to be compatible with Linux. No functional change.

MFC after:	1 week
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
Sponsored by:	Mellanox Technologies
2018-02-17 20:37:21 +00:00
Mark Johnston
7e1a02baa5 Add some miscellaneous definitions to support the DRM drivers.
MFC after:	1 week
2017-08-22 17:13:28 +00:00
Mark Johnston
1f1c4ea123 Add device resource management fields to struct device.
MFC after:	1 week
2017-08-16 06:33:48 +00:00
Mark Johnston
48dac28d63 Add macros for defining attribute groups and for WO and RW attributes.
Reviewed by:	hselasky
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D11872
2017-08-08 04:30:22 +00:00
Mark Johnston
aa2b6b4957 Add device_is_registered() to the LinuxKPI.
MFC after:	1 week
2017-07-08 18:53:02 +00:00
Mark Johnston
88156ba581 Add some auxiliary types for device driver support.
MFC after:	1 week
2017-07-04 01:23:36 +00:00
Mark Johnston
0bfde0a7c7 Add the thaw_early method to struct dev_pm_ops in the LinuxKPI.
MFC after:	1 week
2017-06-25 19:21:59 +00:00
Mark Johnston
cb564d2436 Add some miscellaneous definitions to support DRM drivers.
Reviewed by:	hselasky
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D10985
2017-05-30 17:16:08 +00:00
Hans Petter Selasky
8f7eee5a63 Use ppsratecheck() for ratelimiting in the LinuxKPI.
Suggested by:		cem @
MFC after:		1 week
Sponsored by:		Mellanox Technologies
2017-03-23 16:23:55 +00:00
Hans Petter Selasky
e9db3df254 Add support for ratelimited printouts in the LinuxKPI.
MFC after:		1 week
Sponsored by:		Mellanox Technologies
2017-03-23 10:48:10 +00:00
Hans Petter Selasky
5a5a8c8a17 Prototype device structure to ensure LinuxKPI header file can be
included standalone.

MFC after:		1 week
Sponsored by:		Mellanox Technologies
2017-02-24 17:03:14 +00:00
Hans Petter Selasky
13459eb4a3 Whitespace fix.
Obtained from:		kmacy @
MFC after:		1 week
Sponsored by:		Mellanox Technologies
2017-02-16 12:08:52 +00:00
Hans Petter Selasky
03adb29e0d Improve LinuxKPI device support. Only delete own BSD devices and not
the ones obtained through devclass_get_device(). Some minor code
cleanups while at it.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-12-25 19:49:09 +00:00
Hans Petter Selasky
0a61267a99 MSIX can support more than 256 IRQs. Make sure the invalid IRQ number
set in the LinuxKPI is big enough.

Sponsored by:           Mellanox Technologies
MFC after:		1 week
2016-12-09 13:53:31 +00:00
Hans Petter Selasky
0f9f74597d Only lock Giant when needed in the LinuxKPI.
Suggested by:	ngie @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-05-16 17:41:25 +00:00
Hans Petter Selasky
b334cdea9b Implement more Linux device related functions in the LinuxKPI. While
at it use NULL for some pointer checks.

Bump the FreeBSD version to force recompilation of all kernel modules
due to a structure size change.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-05-16 09:56:48 +00:00
Hans Petter Selasky
88fa0d734c Don't dereference parent pointer when it is NULL.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-05-16 09:25:56 +00:00
Hans Petter Selasky
fdddd267d7 Handle case of class being set, but not parent when calling
device_register() in the LinuxKPI.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-05-13 13:01:02 +00:00
Hans Petter Selasky
06204f8e25 Minor LinuxKPI code cleanup:
- Declare some static functions in linux_compat.c instead if inside
  various header files.
- Prefix FreeBSD local functions in the LinuxKPI with "linux_" to
  avoid symbol name conflicts in the future and to make debugging
  easier.
- Make the "struct kobj_ktype" declaractions constant to shave off a
  few bytes from the data segment.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-31 12:30:19 +00:00
Hans Petter Selasky
8e7baabc9f Make all the LinuxKPI include files compile standalone.
Sponsored by:	Mellanox Technologies
2015-11-03 12:37:55 +00:00
Hans Petter Selasky
8d59ecb214 Finish process of moving the LinuxKPI module into the default kernel build.
- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
  its subfolders.
- Update sys/conf/files and some Makefiles to use new file locations.
- Added description of COMPAT_LINUXKPI to sys/conf/NOTES which in turn
  adds the LinuxKPI to all LINT builds.
- The LinuxKPI can be added to the kernel by setting the
  COMPAT_LINUXKPI option. The OFED kernel option no longer builds the
  LinuxKPI into the kernel. This was done to keep the build rules for
  the LinuxKPI in sys/conf/files simple.
- Extend the LinuxKPI module to include support for USB by moving the
  Linux USB compat from usb.ko to linuxkpi.ko.
- Bump the FreeBSD_version.
- A universe kernel build has been done.

Reviewed by:	np @ (cxgb and cxgbe related changes only)
Sponsored by:	Mellanox Technologies
2015-10-29 08:28:39 +00:00
Renamed from sys/ofed/include/linux/device.h (Browse further)