Commit Graph

17 Commits

Author SHA1 Message Date
Hans Petter Selasky
e10c4cc0a4 Implement RCU mechanism using shared exclusive locks.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-01-05 12:22:45 +00:00
Hans Petter Selasky
b648035313 Handle when filedescriptors are closed before initialized. An early
fdclose() call can cause fget_unlocked() to fail.

Found by:	mjg @
MFC after:	1 week
Reviewed by:	Mark Block <markb@mellanox.com>
Sponsored by:	Mellanox Technologies
Differential Revision:	https://reviews.freebsd.org/D4351
2015-12-31 14:47:45 +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
337cb9f04c Make the kobject refcounting compliant with Linux. Refcounting on the
parent kobject cannot be factored out and must be done by the kobject
consumers.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-31 11:27:36 +00:00
Hans Petter Selasky
260194052e Reduce memory consumption when allocating kobject strings in the
LinuxKPI. Compute string length before allocating memory instead of
using fixed size allocations. Make kobject_set_name_vargs() global
instead of inline to save some bytes when compiling.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-28 18:20:05 +00:00
Hans Petter Selasky
c4e58b4efe Implement drain_workqueue() function.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-21 12:20:02 +00:00
Hans Petter Selasky
9782763db2 In the zero delay case in queue_delayed_work() use the return value
from taskqueue_enqueue() instead of reading "ta_pending" unlocked and
also ensure the callout is stopped before proceeding.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-21 12:13:03 +00:00
Hans Petter Selasky
55d445d317 Minor workqueue cleanup:
- Make some functions global instead of inline to ease debugging.
- Fix some minor style issues.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-21 11:58:59 +00:00
Hans Petter Selasky
c094330345 Implement sleepable RCU mechanism using shared exclusive locks.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-21 11:03:12 +00:00
Hans Petter Selasky
cee21041cf Implement ACCESS_ONCE(), WRITE_ONCE() and READ_ONCE().
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-21 10:56:38 +00:00
Hans Petter Selasky
f837e46d16 Add some structures and defines which will be used when decoding small
form factor, SFF, standards compliant ethernet EEPROMs.

MFC after:	1 week
Obtained from:	Linux
Sponsored by:	Mellanox Technologies
2015-12-03 12:51:54 +00:00
Hans Petter Selasky
9ce5ab9ce6 Remove incorrect defines. The proper version of these macros is
defined in linux/etherdevice.h.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-12-03 11:45:12 +00:00
Hans Petter Selasky
52ba05767f Add more functions and types to the LinuxKPI.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2015-11-30 09:24:12 +00:00
Hans Petter Selasky
86845417d1 Build fixes:
- Add some missing I/O functions for non-i386 and amd64 platforms.
- Stub ioremap() to NULL using a macro to ensure non-existing memory
  attributes are not referred when they do not exist.
- Add more header files to linux/list.h to resolve driver compilation
  issues on Sparc64 and PowerPC platforms.

Sponsored by:	Mellanox Technologies
2015-11-12 09:18:22 +00:00
Conrad Meyer
3b383c9ede linuxkpi/sysfs.h: Cast arg2 through intptr_t to avoid GCC warning
The code compiles fine under Clang, but GCC on PPC is less permissive about
integer and pointer sizes.  (An intmax_t is clearly *large enough* to hold a
pointer value.)

Another follow-up to r290475.

Reported by:	jhibbits
Sponsored by:	EMC / Isilon Storage Division
2015-11-09 16:50:42 +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