Commit Graph

13922 Commits

Author SHA1 Message Date
Adrian Chadd
030b95d479 Allow crunchgen binary link generation to be disabled.
If CRUNCH_GENERATE_LINKS is set to "no", then no links will be
generated.

This defaults to "yes" so things like release crunch building
still works.
2012-01-05 21:49:43 +00:00
Ulrich Spörlein
8948622005 Apply Typo-B-Gone 2000 [TM] 2012-01-05 21:43:33 +00:00
Ulrich Spörlein
cabdddae57 Pull up vendor changes to mdoc(7)
This switches us to using -isoC-2011 as the symbol name which is used by
groff and mdocml. It follows the change to 4 digit years as done with
IEEE Std 1003 post-1999.

MFC after:	2 weeks (groff changes only)
2012-01-05 21:36:12 +00:00
Christian Brueffer
b730be7a19 Fix typo.
MFC after:	1 week
2012-01-05 11:16:42 +00:00
Ed Schouten
069a43171f Reimplement <tgmath.h> on top of __generic().
The macro construction used now, is almost identical to the code
provided in C11 proposal N1404. This new version doesn't seem to
introduce any regressions according to the regression test in tools/,
but still seems to malfunction with Clang on certain aspects.

The new code does work successfully with GCC 4.2, 4.6 and 4.7. With 4.7,
it also works when __generic() is implemented on top of _Generic().

Discussed with:	stefanf
2012-01-05 10:46:22 +00:00
Robert Watson
6508f34eb6 Add WITHOUT_CAPSICUM src.conf(5) define, which can be used to compile out
use of Capsicum by userspace applications.

MFC after:	3 weeks
Sponsored by:	Google, Inc.
2012-01-02 21:57:58 +00:00
Ed Schouten
194cef3114 Fix sloppyness in memcchr() man page.
I was considering adding it to libc as well, but last minute I thought
it would be good enough to add it to libkern exclusively. I forgot to
rename the man page and hook it up.
2012-01-01 20:59:42 +00:00
Ed Schouten
a4ec012311 Fix typo; return -> returns. 2012-01-01 20:30:48 +00:00
Ed Schouten
de85bfc508 Introducing memcchr(3).
It seems two of the file system drivers we have in the tree, namely ufs
and ext3, use a function called `skpc()'. The meaning of this function
does not seem to be documented in FreeBSD, but it turns out one needs to
be a VAX programmer to understand what it does.

SPKC is an instruction on the VAX that does the opposite of memchr(). It
searches for the non-equal character. Add a new function called
memcchr() to the tree that has the following advantages over skpc():

- It has a name that makes more sense than skpc(). Just like strcspn()
  matches the complement of strspn(), memcchr() is the complement of
  memchr().

- It is faster than skpc(). Similar to our strlen() in libc, it compares
  entire words, instead of single bytes. It seems that for this routine
  this yields a sixfold performance increase on amd64.

- It has a man page.
2012-01-01 20:26:11 +00:00
Lawrence Stewart
253a3814d4 Revert r228986 until it can be reworked to avoid panicing the kernel when the
same interface is attached multiple times with different DLTs, as is done in
net80211 for example.

Reported by:	adrian
2011-12-31 07:21:28 +00:00
Ulrich Spörlein
93b03d5dc7 Spelling fixes for share/ 2011-12-30 11:11:54 +00:00
Lawrence Stewart
0f89fc22f3 - Introduce the net.bpf.tscfg sysctl tree and associated code so as to make one
aspect of time stamp configuration per interface rather than per BPF
  descriptor. Prior to this, the order in which BPF devices were opened and the
  per descriptor time stamp configuration settings could cause non-deterministic
  and unintended behaviour with respect to time stamping. With the new scheme, a
  BPF attached interface's tscfg sysctl entry can be set to "default", "none",
  "fast", "normal" or "external". Setting "default" means use the system default
  option (set with the net.bpf.tscfg.default sysctl), "none" means do not
  generate time stamps for tapped packets, "fast" means generate time stamps for
  tapped packets using a hz granularity system clock read, "normal" means
  generate time stamps for tapped packets using a full timecounter granularity
  system clock read and "external" (currently unimplemented) means use the time
  stamp provided with the packet from an underlying source.

- Utilise the recently introduced sysclock_getsnapshot() and
  sysclock_snap2bintime() KPIs to ensure the system clock is only read once per
  packet, regardless of the number of BPF descriptors and time stamp formats
  requested. Use the per BPF attached interface time stamp configuration to
  control if sysclock_getsnapshot() is called and whether the system clock read
  is fast or normal. The per BPF descriptor time stamp configuration is then
  used to control how the system clock snapshot is converted to a bintime by
  sysclock_snap2bintime().

- Remove all FAST related BPF descriptor flag variants. Performing a "fast"
  read of the system clock is now controlled per BPF attached interface using
  the net.bpf.tscfg sysctl tree.

- Update the bpf.4 man page.

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)
2011-12-30 08:57:58 +00:00
Baptiste Daroussin
1c768ac9fe I'm not yet an alumni, add myself in the right section
Approved by:	des (mentor)
2011-12-29 08:13:11 +00:00
Xin LI
81966bce06 Import the first release of HighPoint RocketRAID 27xx SAS 6Gb/s HBA card
driver.  This driver works for FreeBSD/i386 and FreeBSD/amd64 platforms.

Many thanks to HighPoint for providing this driver.

MFC after:	2 weeks
2011-12-28 23:26:58 +00:00
Baptiste Daroussin
254c268d1f Add myself as a src committer
Approved by:	des (mentor)
2011-12-28 17:45:26 +00:00
Ed Schouten
669ab20feb Document restriction on 32-bits and 64-bits datatypes. 2011-12-27 22:14:35 +00:00
Ed Schouten
fd8a33c1d6 Add missing \.
While sorting the MLINKS by name, I forgot to re-add it.
2011-12-27 13:01:10 +00:00
Ed Schouten
4d8a7eab01 Add manual page for atomic operations. 2011-12-27 12:58:54 +00:00
Jaakko Heinonen
c5a0813d43 Follow style(9) more closely in the example. 2011-12-21 17:03:30 +00:00
Jason Helfman
bca5071ff0 Add myself with mentor relationships
Add tabthorpe -> crees

Approved by: crees (mentor)
2011-12-20 21:16:49 +00:00
Alexander Motin
e3bf726bee Add some more cross-references. 2011-12-20 17:44:25 +00:00
Alexander Motin
e0dceef5c2 Fix copy-paste typo. 2011-12-20 17:32:13 +00:00
Alexander Motin
2a6be868ea Add timecounters(4) man page alike to eventtimers(4). 2011-12-20 17:10:34 +00:00
Alexander Motin
8f72e930c1 s/LAPIC/local APIC/ to closer follow Intel documents.
Submitted by:	jhb
2011-12-20 15:19:33 +00:00
Alexander Motin
89affab00c Remove extra "and" left from earlier version. 2011-12-20 14:12:50 +00:00
Gleb Smirnoff
f08535f872 Restore a feature that was present in 5.x and 6.x, and was cleared in
7.x, 8.x and 9.x with pf(4) imports: pfsync(4) should suppress CARP
preemption, while it is running its bulk update.

However, reimplement the feature in more elegant manner, that is
partially inspired by newer OpenBSD:

- Rename term "suppression" to "demotion", to match with OpenBSD.
- Keep a global demotion factor, that can be raised by several
  conditions, for now these are:
  - interface goes down
  - carp(4) has problems with ip_output() or ip6_output()
  - pfsync performs bulk update
- Unlike in OpenBSD the demotion factor isn't a counter, but
  is actual value added to advskew. The adjustment values for
  particular error conditions are also configurable, and their
  defaults are maximum advskew value, so a single failure bumps
  demotion to maximum. This is for POLA compatibility, and should
  satisfy most users.
- Demotion factor is a writable sysctl, so user can do
  foot shooting, if he desires to.
2011-12-20 13:53:31 +00:00
Alexander Motin
73889c808a Add apic(4) man page, now mostly to cover its event timer functionality. 2011-12-20 13:49:52 +00:00
Alexander Motin
f42acd0f79 Add eventtimers(9) man page, describing related KPIs.
Sponsored by:	iXsystems, Inc.
MFC after:	1 month
2011-12-20 11:40:22 +00:00
John Baldwin
a7f5f7948b Add a TASK_INITIALIZER() macro that can be used to statically
initialize a task structure.

Reviewed by:	gj
MFC after:	2 weeks
2011-12-19 18:55:13 +00:00
Dimitry Andric
c09186a2bb Disable another clang warning (-Wempty-body) when WARNS <= 2.
MFC after:	1 week
2011-12-18 00:34:42 +00:00
Dimitry Andric
ac7472adb6 Disable yet another clang warning (-Wconversion) when WARNS <= 3.
MFC after:	1 week
2011-12-18 00:24:11 +00:00
Ruslan Ermilov
e9a2004460 Fixed some of markup.
Reviewed by:	jhb
2011-12-17 06:57:35 +00:00
Dimitry Andric
9b9c36a3b5 Disable yet another clang warning when WARNS <= 3.
MFC after:	1 week
2011-12-17 01:51:12 +00:00
Dimitry Andric
c9009f9f3d Add a NO_WARRAY_BOUNDS setting to bsd.sys.mk, only applicable to clang,
to selectively work around warnings in programs that don't use flexible
array members, but instead define arrays of length 1 at the end of the
struct, and then access those beyond their declared bounds.

MFC after:	1 week
2011-12-16 23:42:25 +00:00
Alexander Motin
9c121fecc2 Some formatting fixes.
Submitted by:	ru
2011-12-16 14:19:46 +00:00
Gleb Smirnoff
08b68b0e4c A major overhaul of the CARP implementation. The ip_carp.c was started
from scratch, copying needed functionality from the old implemenation
on demand, with a thorough review of all code. The main change is that
interface layer has been removed from the CARP. Now redundant addresses
are configured exactly on the interfaces, they run on.

The CARP configuration itself is, as before, configured and read via
SIOCSVH/SIOCGVH ioctls. A new prefix created with SIOCAIFADDR or
SIOCAIFADDR_IN6 may now be configured to a particular virtual host id,
which makes the prefix redundant.

ifconfig(8) semantics has been changed too: now one doesn't need
to clone carpXX interface, he/she should directly configure a vhid
on a Ethernet interface.

To supply vhid data from the kernel to an application the getifaddrs(8)
function had been changed to pass ifam_data with each address. [1]

The new implementation definitely closes all PRs related to carp(4)
being an interface, and may close several others. It also allows
to run a single redundant IP per interface.

Big thanks to Bjoern Zeeb for his help with inet6 part of patch, for
idea on using ifam_data and for several rounds of reviewing!

PR:		kern/117000, kern/126945, kern/126714, kern/120130, kern/117448
Reviewed by:	bz
Submitted by:	bz [1]
2011-12-16 12:16:56 +00:00
Konstantin Belousov
ec1c1d41b3 Document 'findstack'.
MFC after:	1 week
2011-12-16 11:52:33 +00:00
Navdeep Parhar
733b92779e Many updates to cxgbe(4)
- Device configuration via plain text config file.  Also able to operate
  when not attached to the chip as the master driver.

- Generic "work request" queue that serves as the base for both ctrl and
  ofld tx queues.

- Generic interrupt handler routine that can process any event on any
  kind of ingress queue (via a dispatch table).

- A couple of new driver ioctls.  cxgbetool can now install a firmware
  to the card ("loadfw" command) and can read the card's memory
  ("memdump" and "tcb" commands).

- Lots of assorted information within dev.t4nex.X.misc.*  This is
  primarily for debugging and won't show up in sysctl -a.

- Code to manage the L2 tables on the chip.

- Updates to cxgbe(4) man page to go with the tunables that have changed.

- Updates to the shared code in common/

- Updates to the driver-firmware interface (now at fw 1.4.16.0)

MFC after:	1 month
2011-12-16 02:09:51 +00:00
Dimitry Andric
c792b7e865 Disable one more clang warning when WARNS <= 3.
MFC after:	1 week
2011-12-15 23:13:57 +00:00
Dimitry Andric
e2325c4ac9 Clang has more warnings enabled by default, and when using -Wall, so if WARNS
is set to low values, some of them have to be disabled explicitly.

MFC after:	1 week
2011-12-15 22:08:08 +00:00
John Baldwin
fb680e16f4 Add a helper API to allow in-kernel code to map portions of shared memory
objects created by shm_open(2) into the kernel's address space.  This
provides a convenient way for creating shared memory buffers between
userland and the kernel without requiring custom character devices.
2011-12-14 22:22:19 +00:00
Joel Dahl
8d6c73ab19 Add SEE ALSO. 2011-12-14 19:48:21 +00:00
Alexander Motin
221676a110 After several suggestions from people, move eventtimers page from 7 to 4. 2011-12-14 15:19:40 +00:00
Gleb Smirnoff
c62cf1f7fe More MLINKS for rtalloc.9 2011-12-14 14:55:19 +00:00
Gleb Smirnoff
9aa3cab968 Update this page to describe modern interfaces. 2011-12-14 14:52:50 +00:00
Ed Schouten
2f467d2d16 Change targ(4) to use cdevpriv, instead of multiple character devices.
Also update the manpage and the scsi_target example program accordingly.

Discussed on:	scsi@
Tested by:	Chuck Tuffli <chuck tuffli net>
2011-12-13 21:26:33 +00:00
Alexander Motin
88c707c819 - Fix different variable types use in different files after r121184,
causing problems on amd64.
 - s/%lud/%lu/.

MFC after:	1 month
2011-12-13 11:13:28 +00:00
Ruslan Ermilov
23812e6a94 The "inet" keyword in the "ifconfig_IF_aliasN" is mandatory for
IPv4 aliases to work since network.subr@197139.

MFC after:	3 days
2011-12-13 08:23:03 +00:00
Eitan Adler
dca400f352 - Add support for ASCII art splash screens in TheDraw format
PR:		kern/143370
Submitted by:	Antony Mawer <antony@mawer.org>
Reviewed by:	gjb (doc)
Reviewed by:	des (style)
Approved by:	ed
MFC after:	1 month
2011-12-12 21:12:07 +00:00
Fabien Thomas
61af1d1393 Add watchdog support for VIA south bridge chipset.
Tested on VT8251, VX900 but CX700, VX800, VX855 should works.

MFC after:	1 month
Sponsored by: NETASQ
2011-12-12 09:50:33 +00:00