Commit Graph

202749 Commits

Author SHA1 Message Date
Navdeep Parhar
d94b89b915 cxgbe(4): Update T5 and T4 firmwares bundled with the driver to 1.14.4.0. The
changes in the firmwares since 1.11.27.0 are listed here (straight copy-paste
from the "Release Notes.txt" accompanying the Chelsio Unified Wire 2.11.1.0
release on the website).

22.1. T5 Firmware
+++++++++++++++++++++++++++++++++

Version : 1.14.4.0
Date    : 08/05/2015
================================================================================

FIXES
-----

BASE:
- Fixes a potential data path hang by properly programming PMTX congestion
  threshold settings.
- Fixes a potential initialization error when accessing a configuration file
  stored on the flash.
- Fixes a regression where SGE resources can be miss-sized if iWARP is disabled.

ETH:
- Fixes a timing issue that would prevent CR4 links from coming up with some
  switches.

FOFCoE:
- Defers fcoe linkdown mailbox command handling till LOGO is sent.
- Updates vlan prio for all outstanding IOs during dcbx update.

ENHANCEMENTS
------------

BASE:
- Adds support for PAUSE OFF watchdog.
- Reports devlog access information in PCIE_FW_PF register 7.

ETH:
- Enhances segmentation offload to include VxLAN and Geneve.
- Adds PTP support.
- Adds new interface to allow the driver to query the VI rss table base
  addresses.
- Allows the driver to program the SGE ingrext contxt CongDrop field.

OFLD:
- Adds new interface for the driver to specify offloaded connections TCP snd
  and rcv scale factors.

iSCSI:
- Adds support for iscsi segmentatation offload (ISO).
- Adds support for iscsi t10-dif offload.

FOiSCSI:
- Sets FORCE_BIT for cut through processing for FOiSCSI.

FOFCoE:
- Adds support for FCoE BB6.
- Improves WRITE performance.

================================================================================
================================================================================

Version : 1.13.32.0
Date    : 03/25/2015
================================================================================

FIXES
-----

BASE:
- Fixes FW_CAPS_CONFIG_CMD return value on error (was positive instead of
   negative)
- Fixes FW_PARAMS_PARAM_DEV_FLOWC_BUFFIFO_SZ indication (was wrong on certain
   adapter configurations)
- Fixes config file based PL_TIMEOUT register programming

ETH:
- Fixes a potential EO UDP SEG header corruption
- Fixes an issue where 1000Base-X was not enabled correctly when using QSA
   modules

OFLD:
- Fixes timeout issue with half-open connections
- Fixes FW_FLOWC_WR processing when state is set to finwait1

FOFCoE:
- Fixes fcoe xchg leaks in linkdown/peer down path
- Fixes cleanup in FCoE linkdown and fixed buf timer flowid abuse
- Fixes fw crash by clearing fcf flowc during bye

FOiSCSI:
- Don't create a new tcp socket if ERL0 attempt has timed out.

ENHANCEMENTS
------------

BASE:
- Adds support for VFs on PFs 4 to 7
- Adds support for QPs/CQs on any physical and virtual function

ETH:
- Stops sending LACP frames on loopback interface
- Adds an AUTOEQU indication to CPL_SGE_EGR_UPDATE
- Adds support for CR4 links (BEAN/AEC on 40G TwinAx cables)

OFLD:
- Improves default settings of LAN and CLUSTER TCP timer settings
- Sends Negative Advice CPLs to software

FOISCSI:
- Adds IPv6 support for foiscsi. Keeps backward compatibility with
   old foiscsi drivers which doesn't support ipv6.

FOFCoE:
- Added fcoe debug support in flowc dump

================================================================================
================================================================================

Version : 1.12.25.0
Date    : 10/22/2014
================================================================================

FIXES
-----

BASE:
- Improves precision of the Weight Round Robing Traffic Management Algorithm
- Fixes an issue where the link would intermittently fail to come up
- Fixes an issue where adapters with an external PHY couldn't run at 100Mbps
- Fixes an issue where active optical cables were not recognized
- Fixes link advertising issues on T520-BT (speed and pause frames) that would
  cause the link to negotiate unexpected settings
- Forces link restart when auto-negotiation is disabled
- Fix an issue where pause frames wouldn't be fully disabled even if requested

ETH:
- Fixes NVGRE Segmentation Offload network header generation.

DCBX:
- Fixes an issue where some settings were not being sent to the switch
  correctly
- Fixes an issue where back-to-back DCBX port updates could get overwritten by
  FW
- Fixes a firmware crash on DCBX APP information request before link up

FOiSCSI:
- Fixes abort task leak in tmf response handling
- Fixes TCP RST handling while in iSCSI ERL0
- Fixes a firmware crash on BYE without INIT

ENHANCEMENTS
-------------

BASE:
- Adds link partner settings reporting when available
- Adds QSA support (in conjunction with QSA VPD)
- Adds T520-BT LED support
- Reports NOTSUPPORTED for modules with an unhandled identifier

DCBX:
- Adds version reporting (indicating which version FW is trying to negotiate)
- Adds IEEE support
- Reports LLDP time outs

FOiSCSI:
- Add support for multiple iSCSI DDP client
- Sends DHCP renew request when lease expires

================================================================================

22.2. T4 Firmware
+++++++++++++++++

Version : 1.14.4.0
Date    : 08/05/2015
================================================================================

FIXES
-----

BASE:
- Fixes a potential initialization error when accessing a configuration file
  stored on the flash.
- Initialize PCIE_DBG_INDIR_REQ.Enable to 0, as hardware failed to do so and
  register dumps could result in errors.

ETH:
- Fixes an issue that sometimes prevented the link from coming up in CR adapters.

ENHANCEMENTS
------------

BASE:
- Adds support for PAUSE OFF watchdog.
- Reports devlog access information in PCIE_FW_PF register 7.

ETH:
- Adds new interface to allow the driver to query the VI rss table base
  addresses.

OFLD:
- Adds new interface for the driver to specify offloaded connections TCP snd
  and rcv scale factors.

================================================================================
================================================================================

Version : 1.13.32.0
Date    : 03/25/2015
================================================================================

FIXES
-----

BASE:
- Fixes FW_CAPS_CONFIG_CMD return value on error (was positive instead of
    negative)
- Fixes FW_PARAMS_PARAM_DEV_FLOWC_BUFFIFO_SZ indication (was wrong on certain
    adapter configurations)
- Fixes config file based PL_TIMEOUT register programming

ETH:
- Fixes a potential EO UDP SEG header corruption

OFLD:
- Fixes timeout issue with half-open connections
- Fixes FW_FLOWC_WR processing when state is set to finwait1

FOiSCSI:
- Don't create a new tcp socket if ERL0 attempt has timed out.

ENHANCEMENTS
------------

ETH:
- Stops sending LACP frames on loopback interface
- Adds an AUTOEQU indication to CPL_SGE_EGR_UPDATE

OFLD:
- Improves default settings of LAN and CLUSTER TCP timer settings
- Sends Negative Advice CPLs to software

================================================================================
================================================================================

Version : 1.12.25.0
Date    : 10/22/2014
================================================================================

FIXES
-----

BASE:
- Improves precision of the Weight Round Robing Traffic Management Algorithm
- Forces link restart when auto-negotiation is disabled
- Fix an issue where pause frames wouldn't be fully disabled even if requested

DCBX:
- Fixes an issue where some settings were not being sent to the switch
  correctly
- Fixes an issue where back-to-back DCBX port updates could get overwritten by
  FW
- Fixes a firmware crash on DCBX APP information request before link up

FOiSCSI:
- Fixes abort task leak in tmf response handling
- Fixes TCP RST handling while in iSCSI ERL0
- Fixes a firmware crash on BYE without INIT

ENHANCEMENTS
------------

BASE:
- Adds link partner settings reporting when available
- Firmware now reports NOTSUPPORTED for modules with an unhandled identifier

DCBX:
- Adds version reporting (indicating which version FW is trying to negotiate)
- Adds IEEE support
- Reports LLDP time outs

FOiSCSI:
- Adds support for multiple iSCSI DDP clients
- Sends DHCP renew request when lease expires

================================================================================

Obtained from:	Chelsio Communications
MFC after:	2 weeks
Sponsored by:	Chelsio Communications
2015-08-05 19:45:11 +00:00
Adrian Chadd
711b0fa045 Add TXOP enforce support to the AR9300 HAL.
This is required for (more) correct TDMA support.  Without it, the
code tries to calculate the required guard interval based on the
current rate, and since this is an 11n NIC and people try using
11n, it calls ath_hal_computetxtime() on an 11n rate which then
panics.

This doesn't fix TDMA slave mode on AR9300 - it just makes it
have one less bug.

Reported by:	Berislav Purgar <bpurgar@gmail.com>
2015-08-05 19:32:35 +00:00
Ed Maste
fc8c856029 Rationalize BSD license on sys/*/include/in_cksum.h
Remove the advertising clause from the Regents of the University of
California's license, per the letter dated July 22, 1999.

Update clause numbering.
2015-08-05 19:05:12 +00:00
Ed Maste
5fad3f770b Remove empty directories left by r286332
Reported by:	garga
2015-08-05 18:55:40 +00:00
Ed Maste
f97aa232eb Remove old GNU Binutils tools now provided by ELF Tool Chain
Reviewed by:	bapt, brooks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3238
2015-08-05 18:30:00 +00:00
John Baldwin
abb3f965d1 Rework get_string() to make it more robust when fetching strings of unknown
length.  In particular, instead of blinding fetching 1k blocks, do an initial
fetch up to the end of the current page followed by page-sized fetches up to
the maximum size.  Previously if the 1k buffer crossed a page boundary and
the second page was not valid, the entire operation would fail.
2015-08-05 18:14:01 +00:00
John Baldwin
7582c8ea08 Whitespace fix: remove some spurious spaces before commas. 2015-08-05 18:10:46 +00:00
Edward Tomasz Napierala
ebce46b2c6 Make rctl_enable rc variable actually work. To avoid breaking existing
setups that worked before, flip the default to "YES".  Most people don't
have /etc/rctl.conf, so they won't be affected in any way.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-08-05 17:38:02 +00:00
Jung-uk Kim
fb396e55da Fix more style issues.
Submitted by:	bde
2015-08-05 17:21:42 +00:00
Ed Maste
96226a9aa7 Rationalize BSD license on sys/*/include/float.h
Remove the advertising clause from the Regents of the University of
California's license, per the letter dated July 22, 1999.

Update clause numbering.
2015-08-05 17:05:35 +00:00
Ed Schouten
aaf53ab2aa Correct the previous commit: remove the DECLARE_MODULE().
It looks like a MODULE_VERSION() can also appear on its own -- there is
no need to use explicitly use DECLARE_MODULE(). Looking at other
modules, this seems common practice.
2015-08-05 16:53:49 +00:00
Ed Schouten
b6efa27589 Add DECLARE_MODULE() to the "cloudabi" kernel module.
This kernel module does not require any explicit initialization, but a
module declaration is needed to let the "cloudabi64" kernel module
automatically pull this in.

Obtained from:	https://github.com/NuxiNL/freebsd
2015-08-05 16:45:47 +00:00
Ed Schouten
36310bcd1d Make fcntl(F_SETFL) work.
The stat_put() system call can be used to modify file descriptor
attributes, such as flags, but also Capsicum permission bits. Support
for changing Capsicum bits will be added as soon as its dependent
changes have been pushed through code review.

Obtained from:	https://github.com/NuxiNL/freebsd
2015-08-05 16:15:43 +00:00
Li-Wen Hsu
79b7e3e2c2 Fix make depend in sys/modules
Reviewed by:	delphij
Differential Revision:	https://reviews.freebsd.org/D3291
2015-08-05 14:45:52 +00:00
Alexander Motin
73942c5ce0 Issue all reads of single XCOPY segment simultaneously.
During vMotion and Clone VMware by default runs multiple sequential 4MB
XCOPY requests same time.  If CTL issues reads sequentially in 1MB chunks
for each XCOPY command, reads from different commands are not detected
as sequential by serseq option code and allowed to execute simultaneously.
Such read pattern confused ZFS prefetcher, causing suboptimal disk access.
Issuing all reads same time make serseq code work properly, serializing
reads both within each XCOPY command and between them.

My tests with ZFS pool of 14 disks in RAID10 shows prefetcher efficiency
improved from 37% to 99.7%, copying speed improved by 10-60%, average
read latency reduced twice on HDD layer and by five times on zvol layer.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2015-08-05 13:46:15 +00:00
Ed Schouten
2412ae2b8e Regenerate the system call table. 2015-08-05 13:10:13 +00:00
Ed Schouten
2837d9ed43 Import the latest CloudABI system call definitions and table.
We're going to need these for next code I'm going to send out for
review: support for poll() and kqueue() on CloudABI.
2015-08-05 13:09:46 +00:00
Eric van Gyzen
ddab052725 Disable SSE in libthr
Clang emits SSE instructions on amd64 in the common path of
pthread_mutex_unlock.  If the thread does not otherwise use SSE,
this usage incurs a context-switch of the FPU/SSE state, which
reduces the performance of multiple real-world applications by a
non-trivial amount (3-5% in one application).

Instead of this change, I experimented with eagerly switching the
FPU state at context-switch time.  This did not help.  Most of the
cost seems to be in the read/write of memory--as kib@ stated--and
not in the #NM handling.  I tested on machines with and without
XSAVEOPT.

One counter-argument to this change is that most applications already
use SIMD, and the number of applications and amount of SIMD usage
are only increasing.  This is absolutely true.  I agree that--in
general and in principle--this change is in the wrong direction.
However, there are applications that do not use enough SSE to offset
the extra context-switch cost.  SSE does not provide a clear benefit
in the current libthr code with the current compiler, but it does
provide a clear loss in some cases.  Therefore, disabling SSE in
libthr is a non-loss for most, and a gain for some.

I refrained from disabling SSE in libc--as was suggested--because
I can't make the above argument for libc.  It provides a wide variety
of code; each case should be analyzed separately.

https://lists.freebsd.org/pipermail/freebsd-current/2015-March/055193.html

Suggestions from:	dim, jmg, rpaulo
Approved by:	kib (mentor)
MFC after:	2 weeks
Sponsored by:	Dell Inc.
2015-08-05 12:53:55 +00:00
Konstantin Belousov
c8fbdcc10d Fix UP build after r286296, ensure that CPU_FOREACH() is defined.
Sponsored by:	The FreeBSD Foundation
2015-08-05 10:50:33 +00:00
Jason A. Harmening
0a3e154709 Properly sort the function declarations added in r286296
Submitted by:	alc
Approved by:	kib (mentor)
2015-08-05 10:48:32 +00:00
Ed Schouten
db1c8ee585 Add the remaining pointer size independent CloudABI socket system calls.
CloudABI uses a structure called cloudabi_sockstat_t. Think of it as
'struct stat' for sockets. It is used by functions such as
getsockname(), getpeername(), some of the getsockopt() values, etc.

This change implements the sock_stat_get() system call that returns a
copy of this structure. The accept() system call should also return a
full copy of this structure eventually, but for now we're only
interested in the peer address. Add a TODO() to make sure this is
patched up later on.

Differential Revision:	https://reviews.freebsd.org/D3218
2015-08-05 08:18:05 +00:00
Ed Schouten
4958fab8cd Allow the creation of polling descriptors (kqueues) on CloudABI. 2015-08-05 07:37:06 +00:00
Ed Schouten
a2034cc98a Allow the creation of kqueues with a restricted set of Capsicum rights.
On CloudABI we want to create file descriptors with just the minimal set
of Capsicum rights in place. The reason for this is that it makes it
easier to obtain uniform behaviour across different operating systems.

By explicitly whitelisting the operations, we can return consistent
error codes, but also prevent applications from depending OS-specific
behaviour.

Extend kern_kqueue() to take an additional struct filecaps that is
passed on to falloc_caps(). Update the existing consumers to pass in
NULL.

Differential Revision:	https://reviews.freebsd.org/D3259
2015-08-05 07:36:50 +00:00
Ed Schouten
2433a4eb04 Make it possible to implement poll(2) on top of kqueue(2).
It looks like EVFILT_READ and EVFILT_WRITE trigger under the same
conditions as poll()'s POLLRDNORM and POLLWRNORM as described by POSIX.
The only difference is that POLLRDNORM has to be triggered on regular
files unconditionally, whereas EVFILT_READ only triggers when not EOF.

Introduce a new flag, NOTE_FILE_POLL, that can be used to make
EVFILT_READ and EVFILT_WRITE behave identically to poll(). This flag
will be used by cloudlibc's poll() function.

Reviewed by:	jmg
Differential Revision:	https://reviews.freebsd.org/D3303
2015-08-05 07:34:29 +00:00
Enji Cooper
c1987c2852 Set f_file to -1/F_UNUSED when after closing when possible
This will help ensure we don't trash file descriptors that get used later on
in the daemon

Found via internal Coverity scan

MFC after: 2 weeks
Discussed with: cem, ed, markj
Differential Revision: https://reviews.freebsd.org/D3081
Submitted by: Miles Ohlrich <miles.ohlrich@isilon.com>
Sponsored by: EMC / Isilon Storage Division
2015-08-05 03:17:06 +00:00
Enji Cooper
1b44fd7506 Update the comment about handling old-style rc(5) scripts
The old-style (*.sh) scripts in /etc/rc.d are explicitly ignored, whereas
other scripts ending in .sh are permitted
2015-08-05 03:03:57 +00:00
Justin Hibbits
daebf39a41 Remove one more that crept in unnecessarily from previous commit. 2015-08-05 01:52:52 +00:00
Justin Hibbits
6ee5cf50ee Remove some unnecessary includes. 2015-08-05 01:52:11 +00:00
Jason A. Harmening
713841afb2 Add two new pmap functions:
vm_offset_t pmap_quick_enter_page(vm_page_t m)
void pmap_quick_remove_page(vm_offset_t kva)

These will create and destroy a temporary, CPU-local KVA mapping of a specified page.

Guarantees:
--Will not sleep and will not fail.
--Safe to call under a non-sleepable lock or from an ithread

Restrictions:
--Not guaranteed to be safe to call from an interrupt filter or under a spin mutex on all platforms
--Current implementation does not guarantee more than one page of mapping space across all platforms. MI code should not make nested calls to pmap_quick_enter_page.
--MI code should not perform locking while holding onto a mapping created by pmap_quick_enter_page

The idea is to use this in busdma, for bounce buffer copies as well as virtually-indexed cache maintenance on mips and arm.

NOTE: the non-i386, non-amd64 implementations of these functions still need review and testing.

Reviewed by:	kib
Approved by:	kib (mentor)
Differential Revision:	http://reviews.freebsd.org/D3013
2015-08-04 19:46:13 +00:00
Rui Paulo
7b80d5ad13 BEAGLEBONE: remove dtrace from MODULES_EXTRA.
This config is already building all modules, so we don't need the
MODULES_EXTRA definition.  It was also causing problems to users who
rely on MODULES_OVERRIDE to do the right thing.

Discussed with:	ian
2015-08-04 19:04:02 +00:00
Jung-uk Kim
ca23ca33f2 Fix style(9) bugs. 2015-08-04 18:59:54 +00:00
John-Mark Gurney
a2bc81bf7c Make IPsec work with AES-GCM and AES-ICM (aka CTR) in OCF... IPsec
defines the keys differently than NIST does, so we have to muck with
key lengths and nonce/IVs to be standard compliant...

Remove the iv from secasvar as it was unused...

Add a counter protected by a mutex to ensure that the counter for GCM
and ICM will never be repeated..  This is a requirement for security..
I would use atomics, but we don't have a 64bit one on all platforms..

Fix a bug where IPsec was depending upon the OCF to ensure that the
blocksize was always at least 4 bytes to maintain alignment... Move
this logic into IPsec so changes to OCF won't break IPsec...

In one place, espx was always non-NULL, so don't test that it's
non-NULL before doing work..

minor style cleanups...

drop setting key and klen as they were not used...

Enforce that OCF won't pass invalid key lengths to AES that would
panic the machine...

This was has been tested by others too...  I tested this against
NetBSD 6.1.5 using mini-test suite in
https://github.com/jmgurney/ipseccfgs and the only things that don't
pass are keyed md5 and sha1, and 3des-deriv (setkey syntax error),
all other modes listed in setkey's man page...  The nice thing is
that NetBSD uses setkey, so same config files were used on both...

Reviewed by:	gnn
2015-08-04 17:47:11 +00:00
Kevin Lo
3072411ee8 Add support for Planex GW-NS300N. 2015-08-04 15:04:28 +00:00
Allan Jude
e896b4a4f0 xargs now takes -P0, creating as many concurrent processes as possible
PR:		199976
Submitted by:	Nikolai Lifanov <lifanov@mail.lifanov.com>
Reviewed by:	mjg, bjk
Approved by:	bapt (mentor)
MFC after:	1 month
Relnotes:	yes
Sponsored by:	ScaleEngine Inc.
Differential Revision:	https://reviews.freebsd.org/D2616
2015-08-04 14:27:25 +00:00
Konstantin Belousov
3208d3ff46 Give large kernel stack to the initial thread . Otherwise, ZFS
overflows the stack during root mount in some configurations.

Tested by:	Fabian Keil <freebsd-listen@fabiankeil.de> (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-08-04 13:50:52 +00:00
Glen Barber
1da17fb7be Ensure the local MANIFEST is always used when verifying remote
distribution sets.

MFC after:	immediately
Sponsored by:	The FreeBSD Foundation
2015-08-04 13:40:26 +00:00
Konstantin Belousov
35dfc644f5 Copy the fencing of the algorithm to do lock-less update and reading
of the timehands, from the kern_tc.c implementation to vdso.  Add
comments giving hints where to look for the algorithm explanation.

To compensate the removal of rmb() in userspace binuptime(), add
explicit lfence instruction before rdtsc.  On i386, add usual
complications to detect SSE2 presence; assume that old CPUs which do
not implement SSE2 also execute rdtsc almost in order.

Reviewed by:	alc, bde (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-08-04 12:33:51 +00:00
Edward Tomasz Napierala
72800098bf Fix panic triggered by code like this:
open("/dev/md0", O_EXEC);

Discussed with:	kib@, mav@
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3051
2015-08-04 10:40:08 +00:00
Hans Petter Selasky
5884383f19 Avoid calling into the random subsystem before it is initialized.
Sponsored by:	Mellanox Technologies
2015-08-04 09:45:10 +00:00
Edward Tomasz Napierala
57a73b26e0 Mark vgonel() as static. It was already declared static earlier;
no idea why compilers don't warn about this.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-08-04 08:51:56 +00:00
Edward Tomasz Napierala
cdc3449233 Revert r286236; vgonel() is a static function.
Sponsored by:	The FreeBSD Foundation
2015-08-04 08:16:18 +00:00
Marcelo Araujo
c52bab1135 Get it closes to style(9).
Staticization usage() and printit().
Fix the usage of err(3).

Reviewed by:	bde
2015-08-04 07:04:36 +00:00
Ed Schouten
0c0964844e Let the CloudABI futex code use umtx_keys.
The CloudABI kernel still passes all of the cloudlibc unit tests.

Reviewed by:	vangyzen
Differential Revision:	https://reviews.freebsd.org/D3286
2015-08-04 06:02:03 +00:00
Ed Schouten
dc4b532479 Fix bad arithmetic in umtx_key_get() to compute object offset.
It looks like umtx_key_get() has the addition and subtraction the wrong
way around, meaning that it fails to match in certain cases. This causes
the cloudlibc unit tests to deadlock in certain cases.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D3287
2015-08-04 06:01:13 +00:00
Pedro F. Giffuni
a8126b4c70 Revert r286144 leaving the original fix to the buffer overflow.
Some developers consider the new code unnecessarily obfuscated.
There was also a benign off-by-one.

Discussed with:	bde, vangyzen, jmallett
2015-08-04 02:56:31 +00:00
Marcelo Araujo
c1f70e3747 Remove the 3rd clause of BSD LICENSE.
Sync the code with the OpenBSD version.
Small style(9) fix up.

Differential Revision:	D3212
Reviewed by:		rodrigc, bapt
Obtained from:		OpenBSD
Sponsored by:		gandi.net
2015-08-04 02:41:14 +00:00
Marcelo Araujo
eb2e6d158d Remove the 3rd clause of BSD LICENSE.
Sync the code with the OpenBSD version.

Differential Revision:	D3213
Reviewed by:		rodrigc, bapt
Obtained from:		OpenBSD
Sponsored by:		gandi.net
2015-08-04 02:34:51 +00:00
Jung-uk Kim
45c2c9a84a Always define __va_list for amd64 and restore pre-r232261 behavior for i386.
Note it allows exotic compilers, e.g., TCC, to build with our stdio.h, etc.

PR:		201749
MFC after:	1 week
2015-08-04 00:11:39 +00:00
Luiz Otavio O Souza
9224217213 Remove the mtx_sleep() from the kqueue f_event filter.
The filter is called from the network hot path and must not sleep.

The filter runs with the descriptor lock held and does not manipulates the
buffers, so it is not necessary sleep when the hold buffer is in use.

Just ignore the hold buffer contents when it is being copied to user space
(when hold buffer in use is set).

This fix the "Sleeping thread owns a non-sleepable lock" panic when the
userland thread is too busy reading the packets from bpf(4).

PR:		200323
MFC after:	2 weeks
Sponsored by:	Rubicon Communications (Netgate)
2015-08-03 22:14:45 +00:00
Ed Schouten
fc6ab77011 Avoid calling strlen() where we can use the strspn() return value. 2015-08-03 22:07:50 +00:00