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6cedd609b7
freebsd-nq/sys
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Lawrence Stewart 6cedd609b7 Introduce the sysclock_getsnapshot() and sysclock_snap2bintime() KPIs. The 
sysclock_getsnapshot() function allows the caller to obtain a snapshot of all
the system clock and timecounter state required to create time stamps at a later
point. The sysclock_snap2bintime() function converts a previously obtained
snapshot into a bintime time stamp according to the specified flags e.g. which
system clock, uptime vs absolute time, etc.

These KPIs enable useful functionality, including direct comparison of the
feedback and feed-forward system clocks and generation of multiple time stamps
with different formats from a single timecounter read.

Committed on behalf of Julien Ridoux and Darryl Veitch from the University of
Melbourne, Australia, as part of the FreeBSD Foundation funded "Feed-Forward
Clock Synchronization Algorithms" project.

For more information, see http://www.synclab.org/radclock/

In collaboration with:	Julien Ridoux (jridoux at unimelb edu au)
2011-12-24 01:32:01 +00:00
..
amd64 Add comments in NOTES to say what viawd is. 2011-12-20 00:16:52 +00:00
arm ARM pmap fixes: 2011-12-15 12:14:15 +00:00
boot Make the RTC checking for QEMU even more aggressive. 2011-12-21 16:47:01 +00:00
bsm
cam Report stripeoffset as zero not stripesize if physical block is zero 2011-12-23 20:59:13 +00:00
cddl opensolaris compat: fix vcmn_err so that panic(9) produces a proper message 2011-12-19 14:55:14 +00:00
compat Protect process environment variables with p_candebug(). 2011-12-04 21:43:13 +00:00
conf Amend r228822 by not directly adding to CWARNFLAGS, but to an optional 2011-12-23 13:50:33 +00:00
contrib Fix LINT-VIMAGE build after r228814: use virtualized pf_pool_limits. 2011-12-24 00:23:27 +00:00
crypto Update Copyright. 2011-10-27 14:15:26 +00:00
ddb Use FOREACH_PROC_IN_SYSTEM instead of using its unrolled form. 2011-12-18 15:36:21 +00:00
dev - Enable usbus on octusb 2011-12-24 00:22:21 +00:00
fs During investigation of an NFSv4 client crash reported by glebius@, 2011-12-23 02:04:35 +00:00
gdb kern cons: introduce infrastructure for console grabbing by kernel 2011-12-17 15:08:43 +00:00
geom replace uses of libkern gets with cngets 2011-12-17 15:26:34 +00:00
gnu Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
i386 The size passed to kmem functions should be in terms of bytes and not 2011-12-20 20:29:45 +00:00
ia64 kern cons: introduce infrastructure for console grabbing by kernel 2011-12-17 15:08:43 +00:00
isa - There's no need to overwrite the default device method with the default 2011-11-22 21:28:20 +00:00
kern Introduce the sysclock_getsnapshot() and sysclock_snap2bintime() KPIs. The 2011-12-24 01:32:01 +00:00
kgssapi Add missing break statement to make sure all 3DES etypes really are treated 2011-10-10 09:13:07 +00:00
libkern retire libkern gets 2011-12-17 15:48:55 +00:00
mips - Set CF physical address base in sysinfo structure 2011-12-23 22:10:55 +00:00
modules Disable various warnings for the ath module in a more fine-grained way: 2011-12-22 23:40:52 +00:00
net Provide ABI compatibility shim to enable configuring of addresses 2011-12-21 12:39:08 +00:00
net80211 Remove now redundant mac argument. 2011-12-17 10:32:31 +00:00
netatalk
netgraph In r191367 the need for if_free_type() was removed and a new member 2011-11-11 22:57:52 +00:00
netinet Use a better log message for master down event. 2011-12-22 18:48:21 +00:00
netinet6 Provide ABI compatibility shim to enable configuring of addresses 2011-12-21 12:39:08 +00:00
netipsec Remove unused 'plen' variable. 2011-11-26 23:57:03 +00:00
netipx Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
netnatm
netncp Change ncp_scan_bindery_object() to pass a constant search string. 2011-10-16 08:44:03 +00:00
netsmb Add unicode support to msdosfs and smbfs; original pathes from imura, 2011-11-18 03:05:20 +00:00
nfs Some cleanup of BOOTP code. Initially I wanted to just change the ifioctl() 2011-12-13 07:02:48 +00:00
nfsclient jwd@ reported a problem via email where the old NFS client would 2011-12-21 02:45:51 +00:00
nfsserver Honor NFSv3 commit call (RFC 1813, Section 3.3.21) where when count is 0, 2011-12-15 02:26:53 +00:00
nlm Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
ofed Replace __signed by signed. 2011-12-13 13:38:03 +00:00
opencrypto Add the fo_chown and fo_chmod methods to struct fileops and use them 2011-08-16 20:07:47 +00:00
pc98 kern cons: introduce infrastructure for console grabbing by kernel 2011-12-17 15:08:43 +00:00
pci To save more power, switch to 10/100Mbps link when controller is 2011-11-23 23:29:18 +00:00
powerpc Support infrastructure for X11 on PS3. 2011-12-18 16:53:21 +00:00
rpc Both a crash reported on freebsd-current on Oct. 18 under the 2011-11-03 14:38:03 +00:00
security Revert the approach for skipping lockstat_probe_func call when doing 2011-12-12 23:29:32 +00:00
sparc64 Eliminate vestiges of page coloring. 2011-12-15 05:07:16 +00:00
sys Introduce the sysclock_getsnapshot() and sysclock_snap2bintime() KPIs. The 2011-12-24 01:32:01 +00:00
teken Link the demo application against ncursesw to make Unicode work. 2011-10-13 14:20:27 +00:00
tools Restore the comment that I removed by accident. 2011-11-09 13:26:59 +00:00
ufs Use implementation independent inoNN_t scalars for on-disk UFS structures 2011-11-09 07:48:48 +00:00
vm Optimize the common case of msyncing the whole file mapping with 2011-12-23 09:09:42 +00:00
x86 Get rid of kludgy per-descriptor state handling in acpi_apm. 2011-12-05 16:08:18 +00:00
xdr
xen s/timout/timeout 2011-12-15 06:29:13 +00:00
Makefile Include sys/xen in cscope tag file generation. 2011-06-10 20:51:41 +00:00