linux-dev/Documentation/ptp, branch master

docs: ptp.txt: convert to ReST and move to driver-api

2019-06-14T20:31:27Z

The conversion is trivial: just adjust title markups. In order to avoid conflicts, let's add an :orphan: tag to it, to be removed when this file gets added to the driver-api book. Signed-off-by: Mauro Carvalho Chehab Acked-by: Richard Cochran Signed-off-by: Jonathan Corbet

ptp: Fix documentation to match code.

2018-03-26T16:13:21Z

Ever since commit 3a06c7ac24f9 ("posix-clocks: Remove interval timer facility and mmap/fasync callbacks") the possibility of PHC based posix timers has been removed. In addition it will probably never make sense to implement this functionality. This patch removes the misleading text which seems to suggest that posix timers for PHC devices will ever be a thing. Signed-off-by: Richard Cochran Signed-off-by: David S. Miller

selftests: move ptp tests from Documentation/ptp

2016-09-20T15:54:38Z

Remove ptp from Makefile to move the test to selftests. Update ptp Makefile to work under selftests. ptp will not be run as part of selftests suite and will not be included in install targets. They can be built separately for now. Acked-by: Jonathan Corbet Signed-off-by: Shuah Khan

Merge tag 'docs-for-linus' of git://git.lwn.net/linux

2016-03-17T19:09:35Z

Pul documentation update from Jon Corbet: "Another relatively boring cycle for the docs tree: typo fixes, translation updates, etc" * tag 'docs-for-linus' of git://git.lwn.net/linux: modsign: Fix documentation on module signing enforcement parameter. Doc: nfs: Fix typos in Documentation/filesystems/nfs Documentation: kselftest: Remove duplicate word doc: fix grammar Documentation: Howto: Fixed subtitles style Doc: ARM: Fix a typo in clksrc-change-registers.awk Documentation/ko_KR: update maintainer information Documentation: Fix int/unsigned int comparison Documentation: Chinese translation of arm64/silicon-errata.txt Documentation:Update Documentation/zh_CN/arm64/booting.txt Documentation: HOWTO: remove obsolete info about regression postings Doc: ja_JP: Fix a typo in HOWTO Doc: i2c: Fix typo in Documentation/i2c Doc: DocBook: Fix a typo in device-drivers.tmpl Remove "arch" usage in Documentation/features/list-arch.sh README: cosmetic fixes Documentation/CodingStyle: add space before parenthesis in example macro SubmittingPatches: fix spelling of "git send-email"

ptp: Add PTP_SYS_OFFSET_PRECISE for driver crosstimestamping

2016-03-03T22:23:43Z

Currently, network /system cross-timestamping is performed in the PTP_SYS_OFFSET ioctl. The PTP clock driver reads gettimeofday() and the gettime64() callback provided by the driver. The cross-timestamp is best effort where the latency between the capture of system time (getnstimeofday()) and the device time (driver callback) may be significant. The getcrosststamp() callback and corresponding PTP_SYS_OFFSET_PRECISE ioctl allows the driver to perform this device/system correlation when for example cross timestamp hardware is available. Modern Intel systems can do this for onboard Ethernet controllers using the ART counter. There is virtually zero latency between captures of the ART and network device clock. The capabilities ioctl (PTP_CLOCK_GETCAPS), is augmented allowing applications to query whether or not drivers implement the getcrosststamp callback, providing more precise cross timestamping. Cc: Prarit Bhargava Cc: Richard Cochran Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Andy Lutomirski Cc: kevin.b.stanton@intel.com Cc: kevin.j.clarke@intel.com Cc: hpa@zytor.com Cc: jeffrey.t.kirsher@intel.com Cc: netdev@vger.kernel.org Acked-by: Richard Cochran Signed-off-by: Christopher S. Hall [jstultz: Commit subject tweaks] Signed-off-by: John Stultz

Documentation: Fix int/unsigned int comparison

2016-02-17T21:09:43Z

Signed int - unsigned int comparison fixed in mpssd, prctl, ptp, and timers in Documentation. In places where 'int argc' and 'const char **argv' are not used, they are replaced with void Documentation/mic/mpssd/mpssd.c: Fixed comparison in sum_iovec_len and disp_iovec Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c: main signature changed to void, as parameters 'argc' and 'argv' are never used Documentation/prctl/disable-tsc-on-off-stress-test.c: main signature changed to void Documentation/prctl/disable-tsc-test.c: main signature changed to void Documentation/ptp/testptp.c: Sign comparison fix Documentation/timers/hpet_example.c: Sign comparision fix Signed-off-by: Mahesh Khanwalkar Signed-off-by: Jonathan Corbet

testptp: Silence compiler warnings on ppc64

2015-09-30T04:16:56Z

When compiling Documentation/ptp/testptp.c the following compiler warnings are printed out: Documentation/ptp/testptp.c: In function ‘main’: Documentation/ptp/testptp.c:367:11: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 3 has type ‘__s64’ [-Wformat=] event.t.sec, event.t.nsec); ^ Documentation/ptp/testptp.c:505:5: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘__s64’ [-Wformat=] (pct+2*i)->sec, (pct+2*i)->nsec); ^ Documentation/ptp/testptp.c:507:5: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘__s64’ [-Wformat=] (pct+2*i+1)->sec, (pct+2*i+1)->nsec); ^ Documentation/ptp/testptp.c:509:5: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘__s64’ [-Wformat=] (pct+2*i+2)->sec, (pct+2*i+2)->nsec); This happens because __s64 is by default defined as "long" on ppc64, not as "long long". However, to fix these warnings, it's possible to define the __SANE_USERSPACE_TYPES__ so that __s64 gets defined to "long long" on ppc64, too. Signed-off-by: Thomas Huth Acked-by: Richard Cochran Signed-off-by: David S. Miller

ptp: restore the makefile for building the test program.

2014-10-24T20:07:10Z

This patch brings back the makefile called testptp.mk which was removed in commit adb19fb66eee (Documentation: add makefiles for more targets). While the idea of that commit was to improve build coverage of the examples, the new Makefile is unable to cross compile the testptp program. In contrast, the deleted makefile was able to do this just fine. This patch fixes the regression by restoring the original makefile. Signed-off-by: Richard Cochran Acked-by: Peter Foley Signed-off-by: David S. Miller

Documentation: update .gitignore files

2014-09-26T09:02:59Z

Add some missing files to .gitignore. Push Documentation/.gitignore down into subdirectories. Signed-off-by: Peter Foley Signed-off-by: Randy Dunlap Signed-off-by: Jiri Kosina

Documentation: fix misc. warnings

2014-09-26T09:02:57Z

Fix a few warnings that gcc emits during a default build. Signed-off-by: Peter Foley Signed-off-by: Randy Dunlap Signed-off-by: Jiri Kosina