dragonfly.git
22 months agokernel: Remove some unused variables.
Sascha Wildner [Fri, 8 Jun 2012 18:08:40 +0000 (20:08 +0200)]
kernel: Remove some unused variables.

22 months agodlopen.3: Remove wrong .El
Sascha Wildner [Fri, 8 Jun 2012 13:57:36 +0000 (15:57 +0200)]
dlopen.3: Remove wrong .El

22 months agoPut getmntopts() into libutil and install mntopts.h to /usr/include.
Sascha Wildner [Fri, 8 Jun 2012 08:59:23 +0000 (10:59 +0200)]
Put getmntopts() into libutil and install mntopts.h to /usr/include.

Previously, they were private to sbin/mount and the other mount_*
commands would take them from there via their Makefiles.

However, puffs related stuff outside base (in pkgsrc for example)
couldn't reach them this way. So for now, arrange it like NetBSD
has it.

22 months agoRemove doscmd(1).
Sascha Wildner [Fri, 8 Jun 2012 06:15:14 +0000 (08:15 +0200)]
Remove doscmd(1).

Whatever it is that people take for running MS-DOS stuff nowadays, we do
not need to maintain this in the base.

It was i386 only, too.

22 months agokernel: Use hashdestroy() to free hash tables allocated with hashinit().
Sascha Wildner [Thu, 7 Jun 2012 17:19:09 +0000 (19:19 +0200)]
kernel: Use hashdestroy() to free hash tables allocated with hashinit().

It asserts that the table is empty before kfree()ing it.

22 months agoFix some unterminated quoted strings in several manual pages.
Sascha Wildner [Thu, 7 Jun 2012 10:26:45 +0000 (12:26 +0200)]
Fix some unterminated quoted strings in several manual pages.

22 months agokernel/drm: Use hashdestroy(). Unbreaks kernel build.
Sascha Wildner [Thu, 7 Jun 2012 07:23:09 +0000 (09:23 +0200)]
kernel/drm: Use hashdestroy(). Unbreaks kernel build.

22 months agokernel: Remove some unused variables.
Sascha Wildner [Thu, 7 Jun 2012 07:15:15 +0000 (09:15 +0200)]
kernel: Remove some unused variables.

22 months agoUpdate the pciconf(8) database.
Sascha Wildner [Wed, 6 Jun 2012 21:23:26 +0000 (23:23 +0200)]
Update the pciconf(8) database.

May 7, 2012 snapshot from http://pciids.sourceforge.net/

22 months agokernel: Add <sys/hash.h>.
Sascha Wildner [Wed, 6 Jun 2012 20:11:44 +0000 (22:11 +0200)]
kernel: Add <sys/hash.h>.

* Our DRM's drm_priv_hash.h is really what's <sys/hash.h> in the other
  BSDs. So move it there, too.

* Add a hash(9) manual page (from FreeBSD).

* Adjust DRM to use our hash{init,destroy}() functions instead of
  rolling its own.

Reported-by: ftigeot
22 months agokernel: Add hashdestroy() (taken from FreeBSD).
Sascha Wildner [Wed, 6 Jun 2012 19:56:00 +0000 (21:56 +0200)]
kernel: Add hashdestroy() (taken from FreeBSD).

22 months agoMove hash.9 to hashinit.9.
Sascha Wildner [Wed, 6 Jun 2012 15:40:53 +0000 (17:40 +0200)]
Move hash.9 to hashinit.9.

22 months agobce: Configuable number of TX/RX descriptor pages
Sepherosa Ziehau [Wed, 6 Jun 2012 07:19:14 +0000 (15:19 +0800)]
bce: Configuable number of TX/RX descriptor pages

22 months agoigb: Use extended interrupt mode whenever possible
Sepherosa Ziehau [Sun, 3 Jun 2012 11:04:33 +0000 (19:04 +0800)]
igb: Use extended interrupt mode whenever possible

The extended interrupt mode could be used as long as the interrupt
is not shared.  MSI by definition is not shared.  For line interrupt,
hw.igbX.irq.unshared tunable is added; it could be set, if the igbX
does not share interrupt line with other devices.

The extended interrupt mode could deliver accurate information about
which queue is active, thus avoiding extra memory reading.

22 months agoigb: Unbreak compile on i386
Sepherosa Ziehau [Mon, 4 Jun 2012 01:26:27 +0000 (09:26 +0800)]
igb: Unbreak compile on i386

Reminded-by: swildner@
22 months agoUnbreak kernel build. Also remove <sys/ccms.h> via 'make upgrade'.
Sascha Wildner [Sat, 2 Jun 2012 17:37:15 +0000 (19:37 +0200)]
Unbreak kernel build. Also remove <sys/ccms.h> via 'make upgrade'.

22 months agokernel - Add comment on spinlocks_wr
Matthew Dillon [Sat, 2 Jun 2012 17:21:03 +0000 (10:21 -0700)]
kernel - Add comment on spinlocks_wr

* Document a side effect related to spinlocks_wr in the LWKT scheduler.

22 months agokernel - Remove kernel-level ccms module (it will be moved into hammer2)
Matthew Dillon [Sat, 2 Jun 2012 17:15:51 +0000 (10:15 -0700)]
kernel - Remove kernel-level ccms module (it will be moved into hammer2)

* Remove the CCMS kernel layer.  The CCMS module is going to be moved
  directly into hammer2 in order to make hammer2 more portable.  For
  now that means moving the files into vfs/hammer2 in the hammer2 branch.

* CCMS is a logical cache coherency locking layer that has been in the
  DragonFly tree for a while but was not enabled by default.  Originally
  the plan was to not lock vnodes across operations but to instead acquire
  the appropriate CCMS lock(s), but rewiring all the filesystems proved to
  be too large a task.

* HAMMER2's cluster work is going to need this layer for real, but nothing
  else does.  What we will do instead (eventually) is add a mount flag to
  allow us to avoid locking vnodes across VNOPS calls which HAMMER2 will be
  able to specify.

22 months agoigb: Optimize TX path
Sepherosa Ziehau [Sun, 27 May 2012 13:16:46 +0000 (21:16 +0800)]
igb: Optimize TX path

Reduce the number of status reports of TX ring: at most 16 reports every
TX descriptor count tranmission.  It is unnecessary to report status for
every TX descriptor.  This could greatly reduce bus traffic.

Use "Transmit Completions Head Write Back" as mentioned in the datasheet.
In this model, TX descriptors are no longer written by hardware thus cache
trashing is avoided.  This also greatly reduce the complexity of igb_txeof.

Implemention note of "Transmit Completions Head Write Back",
- HWBTHRESH is not used, since:
  o  82575 does not support it
  o  Number of status reports are already greatly reduced
- WB_on_EITR is not used, since:
  o  82575 does not support it
  o  It will cause unnecessary head write-back

Performance is almost same as previous code:
- 1.48Mpps for 18bytes UDP datagram
- Line rate for 1472bytes UDP datagram and TCP stream

22 months agotcp: Adjust tcpcb fields comment about NewReno fast recovery
Sepherosa Ziehau [Thu, 31 May 2012 09:32:08 +0000 (17:32 +0800)]
tcp: Adjust tcpcb fields comment about NewReno fast recovery

We have SACK based fast recovery; don't limits the fields to NewReno

22 months agokernel/drm: Remove bogus .PATHs.
Sascha Wildner [Thu, 31 May 2012 05:45:57 +0000 (07:45 +0200)]
kernel/drm: Remove bogus .PATHs.

22 months agodrm: Stow drivers for various chip families
François Tigeot [Tue, 29 May 2012 21:12:15 +0000 (23:12 +0200)]
drm: Stow drivers for various chip families

putting them into their own subdirectories in sys/dev/drm/

Inspired-by: David Shao's dflygsocdrm work
22 months agoFix for password truncation when using crypt(3) with DES
Aggelos Economopoulos [Wed, 30 May 2012 14:03:21 +0000 (16:03 +0200)]
Fix for password truncation when using crypt(3) with DES

Passwords containing a 0x80 byte (UTF-8 encoded ones, ASCII and
ISO-8859-* not affected) would get truncated as if a '\0' byte
had been encountered. This could result in some very weak passwords.

Reported-by: Rubin Xu, Joseph Bonneau, Donting Yu (CVE-2012-2143)
22 months agoicmp: Discard ICMP Source Quench per RFC6633
Sepherosa Ziehau [Wed, 30 May 2012 08:23:48 +0000 (16:23 +0800)]
icmp: Discard ICMP Source Quench per RFC6633

22 months agotcp: Only tcpopt.to_flags are needed in tcp_recv_dupack()
Sepherosa Ziehau [Wed, 30 May 2012 05:16:02 +0000 (13:16 +0800)]
tcp: Only tcpopt.to_flags are needed in tcp_recv_dupack()

While im here, change tcpopt.to_flags from u_long to u_int

22 months agotcp: Even for PAWS tolerance, no segments should follow segment with FIN
Sepherosa Ziehau [Wed, 30 May 2012 03:48:03 +0000 (11:48 +0800)]
tcp: Even for PAWS tolerance, no segments should follow segment with FIN

22 months agotcp: Don't let fast retransmit disrupt RTO rebasing
Sepherosa Ziehau [Tue, 29 May 2012 09:12:07 +0000 (17:12 +0800)]
tcp: Don't let fast retransmit disrupt RTO rebasing

While im here, add and adjust comment about spurious timeout retransmit
detection.

22 months agotcp/reass: Fix the cases that FIN got lost during reassemble
Sepherosa Ziehau [Wed, 30 May 2012 03:34:22 +0000 (11:34 +0800)]
tcp/reass: Fix the cases that FIN got lost during reassemble

While im here, set SACK report's right edge correctly if the current
segment could be merged with its succeeding segment.

22 months agotcp/sack: If other side reneged, discard the current SACK scoreboard
Sepherosa Ziehau [Wed, 30 May 2012 01:43:50 +0000 (09:43 +0800)]
tcp/sack: If other side reneged, discard the current SACK scoreboard

Other side reneging is detected using the first SACK record:
If its left edge is less than or equal to the cumulative ACK of the
incoming segment, other side probably reneged.

This fixes the later assertion that the first SACK record's left edge
must be above snd_una in tcp_sack_first_unsacked_len()

Add statistics about other side reneging

22 months agosocket: Fix wrongly numbered SIOCGIFDATA
Sepherosa Ziehau [Tue, 29 May 2012 08:09:47 +0000 (16:09 +0800)]
socket: Fix wrongly numbered SIOCGIFDATA

While im here, add comment about used number in 'i' group

DragonFly-bug: http://bugs.dragonflybsd.org/issues/1897

22 months agodrm.4: A little clean up.
Sascha Wildner [Mon, 28 May 2012 11:33:17 +0000 (13:33 +0200)]
drm.4: A little clean up.

22 months agokernel: increase watchdog default period to 30s
François Tigeot [Sun, 27 May 2012 20:06:37 +0000 (22:06 +0200)]
kernel: increase watchdog default period to 30s

Reducing idle cpu time and power a bit

22 months agotcp/sack: Constify function arguments if possible
Sepherosa Ziehau [Mon, 28 May 2012 06:33:28 +0000 (14:33 +0800)]
tcp/sack: Constify function arguments if possible

22 months agoman/ktr: Adjust for the recent ether function cleanup
Sepherosa Ziehau [Mon, 28 May 2012 02:38:08 +0000 (10:38 +0800)]
man/ktr: Adjust for the recent ether function cleanup

Reminded-by: swildner@
22 months agotcp/sack: Only retransmit unSACKed data when fast retransmit
Sepherosa Ziehau [Mon, 28 May 2012 02:32:41 +0000 (10:32 +0800)]
tcp/sack: Only retransmit unSACKed data when fast retransmit

22 months agopktgen: Unbreak compile
Sepherosa Ziehau [Sun, 27 May 2012 11:32:00 +0000 (19:32 +0800)]
pktgen: Unbreak compile

22 months agokernel: in_cksum2.s is needed by inet6 code
François Tigeot [Sun, 27 May 2012 06:40:27 +0000 (08:40 +0200)]
kernel: in_cksum2.s is needed by inet6 code

22 months agoRemove a few more casts of NULL to some pointer type.
Sascha Wildner [Sat, 26 May 2012 23:00:15 +0000 (01:00 +0200)]
Remove a few more casts of NULL to some pointer type.

22 months agokernel: tcp_fasttimo() is dead
Francois Tigeot [Sat, 26 May 2012 14:07:50 +0000 (16:07 +0200)]
kernel: tcp_fasttimo() is dead

* It was actually killed in 1999

* Remove its last two remaining references

22 months agopci: Disable PCI express memory mapped access method by default
Sepherosa Ziehau [Sat, 26 May 2012 15:06:07 +0000 (23:06 +0800)]
pci: Disable PCI express memory mapped access method by default

It seems to hang some systems during boot.

Reported-by: y0netan1@
22 months agotools: Add netblast
Sepherosa Ziehau [Sat, 26 May 2012 15:05:01 +0000 (23:05 +0800)]
tools: Add netblast

Obtained-from: FreeBSD

22 months agoacpi: strupr() isn't used anywhere, so remove it.
Sascha Wildner [Sat, 26 May 2012 11:40:43 +0000 (13:40 +0200)]
acpi: strupr() isn't used anywhere, so remove it.

22 months agondis.4: Comment out an unneeded sentence.
Sascha Wildner [Sat, 26 May 2012 08:21:02 +0000 (10:21 +0200)]
ndis.4: Comment out an unneeded sentence.

It is supported on all platforms we have.

22 months agoMerge branch 'master' of /repository/git/dragonfly
Venkatesh Srinivas [Sat, 26 May 2012 03:15:00 +0000 (20:15 -0700)]
Merge branch 'master' of /repository/git/dragonfly

22 months agokernel: Remove the inclusion of opt_ddb.h from where it is unnecessary.
Sascha Wildner [Fri, 25 May 2012 21:28:33 +0000 (23:28 +0200)]
kernel: Remove the inclusion of opt_ddb.h from where it is unnecessary.

None of these files uses DDB, DDB_UNATTENDED or GDB_REMOTE_CHAT (which
is what opt_ddb.h defines).

22 months agolibc -- dmalloc: Call malloc_init as-needed, rather than via ctor (#2)
Venkatesh Srinivas [Fri, 25 May 2012 19:43:58 +0000 (12:43 -0700)]
libc -- dmalloc: Call malloc_init as-needed, rather than via ctor (#2)

This commit is a second revision of
e12d3396c777165504d60d2a1408dcd7cb63660d; for details, see the original
commit message.

That commit was reverted quickly, as it broke pthreads; this revision
does not suffer from that problem, as it preserves the __constructor
logic for malloc_init.

Reverts: 4018c6eddd57f4abf9134690cbfa46c9d7103558 (Revert libc ...)
Reported-by: marino@
Closes-bug: 2305

22 months agoRemove some useless casts of NULL to another pointer type.
Sascha Wildner [Fri, 25 May 2012 18:07:33 +0000 (20:07 +0200)]
Remove some useless casts of NULL to another pointer type.

22 months agopci: Print PCIe memory mapped accessing information a little bit earlier
Sepherosa Ziehau [Fri, 25 May 2012 08:28:55 +0000 (16:28 +0800)]
pci: Print PCIe memory mapped accessing information a little bit earlier

22 months agotcp: Enable RFC3517bis by default
Sepherosa Ziehau [Fri, 25 May 2012 07:38:50 +0000 (15:38 +0800)]
tcp: Enable RFC3517bis by default

22 months agotcp: Function renaming
Sepherosa Ziehau [Fri, 25 May 2012 07:23:59 +0000 (15:23 +0800)]
tcp: Function renaming

tcp_recv_dupack() probably is better than tcp_fast_recovery(), which does
more the fast recovery.

22 months agotcp/sack: Fix off-by-one bug when updating rescue SACK information
Sepherosa Ziehau [Fri, 25 May 2012 06:18:18 +0000 (14:18 +0800)]
tcp/sack: Fix off-by-one bug when updating rescue SACK information

22 months agotcp/sack: Force out more segments allowed by "pipe" during fast recovery
Sepherosa Ziehau [Thu, 24 May 2012 08:09:57 +0000 (16:09 +0800)]
tcp/sack: Force out more segments allowed by "pipe" during fast recovery

If some segments are cumulatively acked or SACKed, and HighRxt equals
snd_una, one segment (new or retransmit) will be forced out even if cwnd
and pipe don't allow it.  When large amount of segments are lost, i.e.
computed pipe could be large, this avoids unnecessary retransmit timeout
and could perform as good as NewReno.

Sysctl node net.inet.tcp.force_sackrxt could be tuned to burst out several
retransmits, default is 1 (should be good enough).  Set this sysctl to 0,
SACK based fast recovery will obey the computed pipe.

Several unnecessary retransmit timeout graph as described above:
http://leaf.dragonflybsd.org/~sephe/no_force_sack_rexmt2_15.xpl (starts @15s)
http://leaf.dragonflybsd.org/~sephe/no_force_sack_rexmt_54.xpl (starts @54s)

22 months agotcp/sack: Use RFC3517bis IsLost(snd_una) as fallback of early retransmit
Sepherosa Ziehau [Thu, 24 May 2012 05:35:36 +0000 (13:35 +0800)]
tcp/sack: Use RFC3517bis IsLost(snd_una) as fallback of early retransmit

Since we are less certain about whether is segment is lost or not when
using IsLost(snd_una), we do not send out other unSACKed segments except
the first unSACKed segment under this condition.  Sending out other
unSACKed segments could be too aggressive here; just wait for another
ACK to tick out more unSACKed segments.

22 months agokernel: Remove some bogus casts to the own type (FINAL).
Sascha Wildner [Thu, 24 May 2012 18:16:10 +0000 (20:16 +0200)]
kernel: Remove some bogus casts to the own type (FINAL).

22 months agokernel: Remove some bogus casts to the own type.
Sascha Wildner [Thu, 24 May 2012 17:26:08 +0000 (19:26 +0200)]
kernel: Remove some bogus casts to the own type.

22 months agokernel: Remove some bogus casts to the own type.
Sascha Wildner [Thu, 24 May 2012 17:19:30 +0000 (19:19 +0200)]
kernel: Remove some bogus casts to the own type.

23 months agokernel: Remove some bogus casts to the own type.
Sascha Wildner [Thu, 24 May 2012 08:35:00 +0000 (10:35 +0200)]
kernel: Remove some bogus casts to the own type.

23 months agotcp/sack: Fix the condition that SACK rescue retransmit can't be done
Sepherosa Ziehau [Wed, 23 May 2012 09:38:30 +0000 (17:38 +0800)]
tcp/sack: Fix the condition that SACK rescue retransmit can't be done

If we have nothing left above the HighRxt, the first unSACKed segment
will be used as the SACK rescue retransmit.

23 months agotcp: Indentation
Sepherosa Ziehau [Wed, 23 May 2012 09:37:39 +0000 (17:37 +0800)]
tcp: Indentation

23 months agokernel -- CLFLUSH support
Venkatesh Srinivas [Thu, 24 May 2012 02:15:25 +0000 (19:15 -0700)]
kernel -- CLFLUSH support

* Introduce a kernel variable, 'vmm_guest', signifying whether the
  kernel is running in a virtual environment, such as KVM. This is
  set based on the CPUID2.VMM flag on kernels and set automatically
  on virtual kernels.

* Introduce wrappers for CLFLUSH instructions.

* Provide tunable, hw.clflush_enable, to autoenable CLFLUSH on h/w (-1)
  disable always (0), or enable always (1).

Closes-bug: 2363
Reviewed-by: ftigeot@
From: David Shao, FreeBSD

23 months agokernel: Remove some bogus casts to the own type.
Sascha Wildner [Wed, 23 May 2012 20:42:46 +0000 (22:42 +0200)]
kernel: Remove some bogus casts to the own type.

23 months agokernel: Remove some bogus casts to the own type.
Sascha Wildner [Wed, 23 May 2012 19:30:05 +0000 (21:30 +0200)]
kernel: Remove some bogus casts to the own type.

23 months agokernel/linux: Fix a wrong cast (introduced in e54488bb).
Sascha Wildner [Wed, 23 May 2012 19:28:32 +0000 (21:28 +0200)]
kernel/linux: Fix a wrong cast (introduced in e54488bb).

23 months agokernel: Remove some bogus casts to the own type.
Sascha Wildner [Wed, 23 May 2012 16:36:44 +0000 (18:36 +0200)]
kernel: Remove some bogus casts to the own type.

23 months agokernel: Remove some bogus casts to the own type.
Sascha Wildner [Wed, 23 May 2012 16:01:25 +0000 (18:01 +0200)]
kernel: Remove some bogus casts to the own type.

23 months agotcp: Simplify "extended limited transmit" logic a little bit
Sepherosa Ziehau [Wed, 23 May 2012 05:44:52 +0000 (13:44 +0800)]
tcp: Simplify "extended limited transmit" logic a little bit

Don't follow the RFC4653 or RFC3517bis's "extended limited transmit"
description verbatimly; increase cwnd once and let tcp_output() do
the job.

23 months agotcp: Optimize SACK scoreboard records consolidation a little bit
Sepherosa Ziehau [Wed, 23 May 2012 03:14:02 +0000 (11:14 +0800)]
tcp: Optimize SACK scoreboard records consolidation a little bit

If the SACK block and SACK scoreboard record are matched exactly,
SACK scoreboard records consolidation is not needed at all.

23 months agoRevert "libc -- dmalloc: Call malloc_init as-needed, rather than via cc constructor."
Sascha Wildner [Tue, 22 May 2012 13:02:01 +0000 (15:02 +0200)]
Revert "libc -- dmalloc: Call malloc_init as-needed, rather than via cc constructor."

This reverts commit e12d3396c777165504d60d2a1408dcd7cb63660d.

23 months agoacpica: Unbreak LINT/LINT64 building
Sepherosa Ziehau [Tue, 22 May 2012 08:10:21 +0000 (16:10 +0800)]
acpica: Unbreak LINT/LINT64 building

23 months agoacpi/timer: Fix return value
Sepherosa Ziehau [Tue, 22 May 2012 07:55:45 +0000 (15:55 +0800)]
acpi/timer: Fix return value

23 months agoacpidb: regenerate osunixxf.c.patch
Magliano Andrea [Fri, 11 May 2012 13:59:11 +0000 (15:59 +0200)]
acpidb: regenerate osunixxf.c.patch

someone please take care of dfly header, if necessary;
i applied the patch by hand and pulled in a git diff

23 months agoacpidb: add missing evglock.c to Makefile
Magliano Andrea [Fri, 11 May 2012 13:58:52 +0000 (15:58 +0200)]
acpidb: add missing evglock.c to Makefile

23 months agoFix iasl compilation
Magliano Andrea [Fri, 11 May 2012 08:42:56 +0000 (10:42 +0200)]
Fix iasl compilation

basically sync with svn://svn.freebsd.org/base/head@220663

23 months agoSome files overlooked on first commit...
Magliano Andrea [Fri, 11 May 2012 08:19:52 +0000 (10:19 +0200)]
Some files overlooked on first commit...

23 months agoRevert previous commit (wrong tentative)
Magliano Andrea [Fri, 11 May 2012 07:19:24 +0000 (09:19 +0200)]
Revert previous commit (wrong tentative)

and do like svn://svn.freebsd.org/base/head@220663
it doesn't seem possible with bsd Makefile infrastructure
to set source target specific flags

23 months agoFirst import (compiles, seems to run correctly)
Magliano Andrea [Fri, 11 May 2012 06:12:10 +0000 (08:12 +0200)]
First import (compiles, seems to run correctly)

Taken from FreeBSD r222544:218590 (patch applied),
not from acpica repository.

One problem shown (no more reproducible, skew build?):
in bootverbose mode 'domain0 misses processors, should be 2, got 1'
sysctl shows hw.acpi.cpu0 only, other cpus are missing;
seems an error in evaluating C009 Method in aml code...

TODO:

* iasl compiler Makefile has to be reworked because of specific
  YASL flags for new files dtparser.[yl]

* 'EVENTHANDLER_INVOKE(power_suspend)' to be integrated in acpi.c

* atomic_load_acq_64 isn't implemented (used in acpi_hpet.c)

* sc->tc.tc_quality isn't available; to be investigated

* acpi_timer_test() improved implementation not integrated

* ACPI_CAP_SMP_C3_NATIVE and CPI_CAP_PX_HW_COORD in acpivar.h
  left out, as FreeBSD don't use it either

23 months agoigb: Add to x86_64 and i386 GENERIC
Sepherosa Ziehau [Mon, 21 May 2012 08:58:31 +0000 (16:58 +0800)]
igb: Add to x86_64 and i386 GENERIC

23 months agoLINT: Add igb(4)
Sepherosa Ziehau [Mon, 21 May 2012 08:35:02 +0000 (16:35 +0800)]
LINT: Add igb(4)

23 months agolibc -- dmalloc: Call malloc_init as-needed, rather than via cc constructor.
Venkatesh Srinivas [Sun, 20 May 2012 14:10:56 +0000 (07:10 -0700)]
libc -- dmalloc: Call malloc_init as-needed, rather than via cc constructor.

dmalloc requires its own _nmalloc_thr_init be called before it can service
allocations. Applications with preinit arrays were able to call malloc before
constructors ran, which caused them to crash on uninitialized allocator state.

The change uses a flag to test for allocator init state. It is also careful
to not allow _nmalloc_thr_init to be called recursively from within pthread
initialization (slglobal.masked).

Reported-by: marino@
Closes-bug: 2305

23 months agonetif: Remove no longer used e1000 layout
Sepherosa Ziehau [Sun, 20 May 2012 13:52:01 +0000 (21:52 +0800)]
netif: Remove no longer used e1000 layout

23 months agoigb: Import Intel igb-2.2.3
Sepherosa Ziehau [Wed, 25 Apr 2012 12:42:40 +0000 (20:42 +0800)]
igb: Import Intel igb-2.2.3

Local changes
- Laundry the code
- Rewrite busdma related code
- Rewrite RX path
- Enable hardware TX IP chesksum

Integration w/ DragonFly's RSS and TX path optimization will be
conducted in the repository.

Tested-with: 82576 82575EB

23 months agoig_hal: Merge Intel igb-2.2.3 HAL w/ em-7.2.4 HAL
Sepherosa Ziehau [Thu, 19 Apr 2012 14:11:00 +0000 (22:11 +0800)]
ig_hal: Merge Intel igb-2.2.3 HAL w/ em-7.2.4 HAL

23 months agoe1000: Unhook from building, prepare for the new igb
Sepherosa Ziehau [Thu, 19 Apr 2012 13:57:50 +0000 (21:57 +0800)]
e1000: Unhook from building, prepare for the new igb

23 months agokernel/devfs: Remove the unused devfs Makefile.
Sascha Wildner [Sun, 20 May 2012 02:47:11 +0000 (04:47 +0200)]
kernel/devfs: Remove the unused devfs Makefile.

23 months agokernel -- tmpfs: Convert tmpfs inode counter to per-mount field
Venkatesh Srinivas [Sat, 19 May 2012 03:33:56 +0000 (20:33 -0700)]
kernel -- tmpfs: Convert tmpfs inode counter to per-mount field

tmpfs used a global counter under a spinlock to set inode numbers. This
should be a per-mount field, protected by the mount lock.

23 months agoamr(4): Some fixes.
Sascha Wildner [Fri, 18 May 2012 23:57:25 +0000 (01:57 +0200)]
amr(4): Some fixes.

* Bring in some small updates from FreeBSD.

* Add MODULE_VERSION.

* Make the interrupt handler MPSAFE. This was a porting oversight by me.

23 months agoFix some typos in manual pages.
Sascha Wildner [Fri, 18 May 2012 18:10:50 +0000 (20:10 +0200)]
Fix some typos in manual pages.

23 months agobsd-family-tree: Sync with FreeBSD.
Sascha Wildner [Fri, 18 May 2012 16:53:28 +0000 (18:53 +0200)]
bsd-family-tree: Sync with FreeBSD.

23 months agobuiltin.1: Bring in some enhancements from FreeBSD.
Sascha Wildner [Fri, 18 May 2012 11:16:32 +0000 (13:16 +0200)]
builtin.1: Bring in some enhancements from FreeBSD.

It is modeled after what they did but based on what we actually have in
our shells' source.

* Use "No**" to mark commands which exist externally but are implemented
  as a script executing the builtin.

* Some further explanations and mdoc fixes.

23 months agobuiltin.1: Add two more built-in commands.
Sascha Wildner [Fri, 18 May 2012 11:05:09 +0000 (13:05 +0200)]
builtin.1: Add two more built-in commands.

23 months agotcp: Implement RFC4653 Non-Congestion Robustness (NCR)
Sepherosa Ziehau [Fri, 18 May 2012 07:29:39 +0000 (15:29 +0800)]
tcp: Implement RFC4653 Non-Congestion Robustness (NCR)

It is enabled by default and can be disabled using sysctl node:
net.inet.tcp.ncr

As far as I have tested on heavily reordered network path, this
algorithm does avoid most of the spurious fast retransmits.  While
on the normal network path, the fast retransmits stil could be
triggered properly.

23 months agotcp: Improve RFC3517bis support
Sepherosa Ziehau [Fri, 18 May 2012 02:33:21 +0000 (10:33 +0800)]
tcp: Improve RFC3517bis support

- Factor out tcp_fast_recovery()
- Delay fast retransmit or fast recovery for duplicated ACK which
  carries data or updates receiving window, so that
  o  The segments sent by fast retransmit/recovery could carry
     proper ack sequence and SACK information.
  o  Receiving window could get updated, so more new data could be
     injected into the network by the fast recovery.

23 months agokernel: Remove some bogus casts to the own type.
Sascha Wildner [Thu, 17 May 2012 23:52:22 +0000 (01:52 +0200)]
kernel: Remove some bogus casts to the own type.

23 months agobuiltin.1: Sync with what we have.
Sascha Wildner [Thu, 17 May 2012 23:03:10 +0000 (01:03 +0200)]
builtin.1: Sync with what we have.

23 months agoshare/man/man1/Makefile: One MLINK per line.
Sascha Wildner [Thu, 17 May 2012 21:48:20 +0000 (23:48 +0200)]
share/man/man1/Makefile: One MLINK per line.

23 months agoexamples/rconfig: Some fixes to our installation scripts.
Sascha Wildner [Thu, 17 May 2012 20:17:53 +0000 (22:17 +0200)]
examples/rconfig: Some fixes to our installation scripts.

* Allow the script to be run in a netbooted scenario, too.

* Raise the default size of the root partition to 768M (like the
  installer's default).

* While here, add some comments and whitespace.

Submitted-by: Joachim de Groot <jdegroot@web.de>
23 months agovkernel: Fix compilation with profiling support.
Sascha Wildner [Thu, 17 May 2012 14:17:22 +0000 (16:17 +0200)]
vkernel: Fix compilation with profiling support.

The vkernel is a special userland program in the regard that its Makefile
is generated by config(8), which is kind of tailored to the real kernel.

So first of all, we have to modify config(8) to detect it's a vkernel we
want to build and in this case it should not define GPROF which otherwise
activates the real kernel's profiling bits.

Then, modify libkern's mcount.c to skip kernel specific parts too.

Then, modify the vkernels' Makefiles to take into account ${PROF} (and
while we're here, ${DEBUG} too) which are set by the surrounding Makefile
which is generated by config(8).

The vkernel is now (from profiling point of view) treated like any other
userland program.

Last but not least, add some documentation about building a vkernel with
profiling support to vkernel's manpage.

To build with profiling, simply add CONFIGARGS=-p to the buildkernel
command line. It will need the config(8) program to be in /usr/obj's
btools dir, so either a buildworld with this commit needs to be done,
or config can be installed manually to /usr/sbin and nativekernel can
be used.

Tested-by: tuxillo
23 months agotcp: Ignore TCP_NOPUSH socketopt by default
Sepherosa Ziehau [Thu, 17 May 2012 09:58:41 +0000 (17:58 +0800)]
tcp: Ignore TCP_NOPUSH socketopt by default

For ill optimized programs which misuses this sockopt will cause
unpredicted length of network stalling, if the total sending size
is not TCP sending segment size aligned.

sysctl node net.inet.tcp.disable_nopush controls whether TCP_NOPUSH
will take effect or not

I am not going to fight agaist the stupid programs in the wild.

DragonFly-bug: http://bugs.dragonflybsd.org/issues/2368

This is actually _not_ a bug on our side.

23 months agokernel/profiling: Fix a kprintf format.
Sascha Wildner [Thu, 17 May 2012 08:41:29 +0000 (10:41 +0200)]
kernel/profiling: Fix a kprintf format.

23 months agotcp: Make PAWS robust against segments reordering
Sepherosa Ziehau [Wed, 16 May 2012 08:53:37 +0000 (16:53 +0800)]
tcp: Make PAWS robust against segments reordering

This tends to prevent valid new segments from being dropped by the
reordered segments sent by the fast retransmission algorithm on the
sending side, i.e. the fast retransmitted segment w/ larger timestamp
arrives earlier than the previously sent new segments w/ smaller
timestamp, which causes the valid new segments being dropped.