Commit graph

7 commits

Author SHA1 Message Date
Mark Johnston
8504aa9852 Add kthread parking support to the LinuxKPI.
Submitted by:	kmacy (original version)
Reviewed by:	hselasky
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D11264
2017-06-18 19:22:05 +00:00
Hans Petter Selasky
dff36e69a1 Implement in_atomic() function in the LinuxKPI.
Obtained from:		kmacy @
MFC after:		1 week
Sponsored by:		Mellanox Technologies
2017-05-31 15:05:44 +00:00
Hans Petter Selasky
1e3db1de0c Make the LinuxKPI task struct persistent accross system calls.
A set of helper functions have been added to manage the life of the
LinuxKPI task struct. When an external system call or task is invoked,
a check is made to create the task struct by demand. A thread
destructor callback is registered to free the task struct when a
thread exits to avoid memory leaks.

This change lays the ground for emulating the Linux kernel more
closely which is a dependency by the code using the LinuxKPI APIs.

Add new dedicated td_lkpi_task field has been added to struct thread
instead of abusing td_retval[1].

Fix some header file inclusions to make LINT kernel build properly
after this change.

Bump the __FreeBSD_version to force a rebuild of all kernel modules.

MFC after:		1 week
Sponsored by:		Mellanox Technologies
2017-02-21 12:43:02 +00:00
Hans Petter Selasky
15c98ff2f1 Remove redundant "task_struct_set()".
This is done by the "linux_kthread_fn()".

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-05-12 09:11:18 +00:00
Hans Petter Selasky
464d20bcc8 Create a dummy "task_struct" on the stack which is returned by
"current" inside all LinuxKPI file operation callbacks. The "current"
is frequently used for various debug prints, printing the thread name
and thread ID for example.

Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-05-12 09:06:54 +00:00
Hans Petter Selasky
0c510167fb LinuxKPI style changes:
- Properly prefix internal functions with "linux_" instead of only a
  single underscore to avoid future namespace collisions.
- Make some functions global instead of inline to ease debugging and
  to avoid unnecessary code duplication.
- Remove no longer existing kthread_create() function's prototype.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-01-08 10:04:19 +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/kthread.h (Browse further)