to known AHCI-capable chips (AMD/NVIDIA), configured for legacy emulation.
Enabled by default to get additional performance and functionality of AHCI
when it can't be enabled by BIOS. Can be disabled to honor BIOS settings if
needed for some reason.
MFC after: 1 month
to enable and configure the functionality.
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/
Discussed with: Julien Ridoux (jridoux at unimelb edu au)
Submitted by: Julien Ridoux (jridoux at unimelb edu au)
its mechanisms, pointing at other pertinent man pages, and cautioning about
the experimental status of Capsicum in FreeBSD.
MFC after: 3 days
Sponsored by: Google, Inc.
and DEVMETHOD() we can fully hide the explicit mention of kobj(9) from
device drivers.
- Update the example in driver.9 to use DEVMETHOD_END.
Submitted by: jhb
MFC after: 3 days
Tested on Qemu/KVM, VirtualBox, and BHyVe.
Currently built as modules-only on i386/amd64. Man pages not yet hooked
up, pending review.
Submitted by: Bryan Venteicher bryanv at daemoninthecloset dot org
Reviewed by: bz
MFC after: 4 weeks or so
I/O from userspace, capable of line rate at 10G, see
http://info.iet.unipi.it/~luigi/netmap/
At this time I am bringing in only the generic code (sys/dev/netmap/
plus two headers under sys/net/), and some sample applications in
tools/tools/netmap. There is also a manpage in share/man/man4 [1]
In order to make use of the framework you need to build a kernel
with "device netmap", and patch individual drivers with the code
that you can find in
sys/dev/netmap/head.diff
The file will go away as the relevant pieces are committed to
the various device drivers, which should happen in a few days
after talking to the driver maintainers.
Netmap support is available at the moment for Intel 10G and 1G
cards (ixgbe, em/lem/igb), and for the Realtek 1G card ("re").
I have partial patches for "bge" and am starting to work on "cxgbe".
Hopefully changes are trivial enough so interested third parties
can submit their patches. Interested people can contact me
for advice on how to add netmap support to specific devices.
CREDITS:
Netmap has been developed by Luigi Rizzo and other collaborators
at the Universita` di Pisa, and supported by EU project CHANGE
(http://www.change-project.eu/)
The code is distributed under a BSD Copyright.
[1] In my opinion is a bad idea to have all manpage in one directory.
We should place kernel documentation in the same dir that contains
the code, which would make it much simpler to keep doc and code
in sync, reduce the clutter in share/man/ and incidentally is
the policy used for all of userspace code.
Makefiles and doc tools can be trivially adjusted to find the
manpages in the relevant subdirs.
This enables locking consumers to pass their own structures around as const and
be able to assert locks embedded into those structures.
Reviewed by: ed, kib, jhb
based on Solarflare SFC9000 family controllers. The driver supports jumbo
frames, transmit/receive checksum offload, TCP Segmentation Offload (TSO),
Large Receive Offload (LRO), VLAN checksum offload, VLAN TSO, and Receive Side
Scaling (RSS) using MSI-X interrupts.
This work was sponsored by Solarflare Communications, Inc.
My sincere thanks to Ben Hutchings for doing a lot of the hard work!
Sponsored by: Solarflare Communications, Inc.
MFC after: 3 weeks
curthread-accessing part of mtx_{,un}lock(9) when using a r210623-style
curthread implementation on sparc64, crashing the kernel in its early
cycles as PCPU isn't set up, yet (and can't be set up as OFW is one of the
things we need for that, which leads to a chicken-and-egg problem). What
happens is that due to the fact that the idea of r210623 actually is to
allow the compiler to cache invocations of curthread, it factors out
obtaining curthread needed for both mtx_lock(9) and mtx_unlock(9) to
before the branch based on kobj_mutex_inited when compiling the kernel
without the debugging options. So change kobj_class_compile_static(9)
to just never acquire kobj_mtx, effectively restricting it to its
documented use, and add a kobj_init_static(9) for initializing objects
using a class compiled with the former and that also avoids using mutex(9)
(and malloc(9)). Also assert in both of these functions that they are
used in their intended way only.
While at it, inline kobj_register_method() and kobj_unregister_method()
as there wasn't much point for factoring them out in the first place
and so that a reader of the code has to figure out the locking for
fewer functions missing a KOBJ_ASSERT.
Tested on powerpc{,64} by andreast.
Reviewed by: nwhitehorn (earlier version), jhb
MFC after: 3 days
document knlist_delete, and better document what knlist_clear does... Note
that both of these functions may sleep, and also unlock/relock the list
lock...
document knlist_init_mtx (forgotten by kib)...
other minor improvements
Reviewed by: ru (previous rev)
MFC after: 1 week
thanks for their contiued support to FreeBSD.
This is version 10.80.00.003 from codeset 10.2.1 [1]
Obtained from: LSI http://kb.lsi.com/Download16574.aspx [1]
- Emphasize $ipv6_enable and $ipv6_prefer are deprecated.
- Add more detail descriptions about $ipv6_activate_all_interfaces.
- Add some more examples of $ifconfig_IF_ipv6.
- rtsold(8) and rtadvd(8) can be used even when ipv6_gateway_enable=NO now.
Approved by: re (kib)
mod_cc.4 and mod_cc.9 respectively to avoid any possible confusion with the cc.1
gcc man page. Update references to these man pages where required.
Requested by: Grenville Armitage
Approved by: re (kib)
MFC after: 3 days
If it overflows before the taskqueue can run, the task will be
re-added to the taskqueue and cause a loop in the task list.
Reported by: Arnaud Lacombe <lacombar@gmail.com>
Submitted by: Ryan Stone <rysto32@gmail.com>
Reviewed by: jhb
Approved by: re (kib)
MFC after: 1 day
- We no longer use the same data structure in as NetBSD in pucdata.c.
- ppc(4) has had a puc(4) attachment for a while now.
Approved by: re (blackend)
MFC after: 3 days
If a selinfo object is recorded (via selrecord()) and then it is
quickly destroyed, with the waiters missing the opportunity to awake,
at the next iteration they will find the selinfo object destroyed,
causing a PF#.
That happens because the selinfo interface has no way to drain the
waiters before to destroy the registered selinfo object. Also this
race is quite rare to get in practice, because it would require a
selrecord(), a poll request by another thread and a quick destruction
of the selrecord()'ed selinfo object.
Fix this by adding the seldrain() routine which should be called
before to destroy the selinfo objects (in order to avoid such case),
and fix the present cases where it might have already been called.
Sometimes, the context is safe enough to prevent this type of race,
like it happens in device drivers which installs selinfo objects on
poll callbacks. There, the destruction of the selinfo object happens
at driver detach time, when all the filedescriptors should be already
closed, thus there cannot be a race.
For this case, mfi(4) device driver can be set as an example, as it
implements a full correct logic for preventing this from happening.
Sponsored by: Sandvine Incorporated
Reported by: rstone
Tested by: pluknet
Reviewed by: jhb, kib
Approved by: re (bz)
MFC after: 3 weeks
As Garrett points out,
It is no more a debugging interface than setproctitle(3), and has not
been since the name started getting stuffed into the kernel. This
statement may have made sense when the name was only visible in thread
state dumps and the debugger.
PR: threads/158815
Submitted by: wollman@
driver.
Mention all ASIX USB controllers that are supported by axe(4).
Reword media types and explicly mention AX88178 is the only
controller that supports gigabit link.
While I'm here use shorten model instead of showing all controller
model numbers.
to be assigned to a non-default FIB instance.
You may need to recompile world or ports due to the change of struct ifnet.
Submitted by: cjsp
Submitted by: Alexander V. Chernikov (melifaro ipfw.ru)
(original versions)
Reviewed by: julian
Reviewed by: Alexander V. Chernikov (melifaro ipfw.ru)
MFC after: 2 weeks
X-MFC: use spare in struct ifnet
doc/, and now www/ trees, but only using the "cvsup" transport.
When "make update" is run using a tree's makefile, it can also use
"cvs" (except for www/) and "svn" (only src/).
Clean up documentation and code regarding "make update":
- Increase oddness by adding support for WWWSUPFILE and NO_WWWUPDATE to
Makefile.inc1 (analogous to PORTSSUPFILE/NO_PORTSUPDATE and
DOCSUPFILE/NO_DOCUPDATE; WWWSUPFILE already supported by www/Makefile).
- Document all trees that support CVS_UPDATE.
- Document all trees that support SUP_UPDATE.
- Document SVN_UPDATE.
- Document NO_WWWUPDATE.
- make.conf(5) mistakenly said that *SUPFILE* had defaults.
- Add an example entry for WWWSUPFILE.
the system to proceed to boot without bailing out into single user mode,
even when the file system can not be successfully mounted.
This option is implemented in mount(8) and not passed into kernel.
MFC after: 1 month
Many thanks to Tino <tinotom@gmail.com> for drawing my attention to
this, for doing a lot of testing and providing great feedback.
Many thanks to AMD for continuing to release public specifications for
their chipsets.
PR: kern/157568
Tested by: Tino <tinotom@gmail.com>
MFC after: 1 week
controllers because of TX MAC hangs when trying to send a frame
that is larger than 4K (see r200759).
PR: docs/156742
Submitted by: Michael Moll (kvedulv at kvedulv dot de)
Reviewed by: yongari@
MFC after: 6 days
being able to verify, but also having the ability to
fetch distfiles that are missing or failed the checksum
calculation
PR: docs/138887
Submitted by: Radim Kolar (hsn at sendmail dot cz)
MFC after: 5 days
which is now disabled by default. The detection is known to cause hangs
on boot with some new Lenovo laptops on FreeBSD/amd64.
Reported by: gnn
Discussed with: jkim
MFC after: 3 months
When supported by hardware, this allows to control per-port activity, locate
and fault LEDs via the led(4) API for localization and status reporting
purposes. Supporting AHCI controllers may transmit that information to the
backplane controllers via SGPIO interface. Backplane controllers interpret
received statuses in some way (IBPI standard) to report them using present
indicators.
Some files keep the SUN4V tags as a code reference, for the future,
if any rewamped sun4v support wants to be added again.
Reviewed by: marius
Tested by: sbruno
Approved by: re
with INET6 equivalents. Patch reather than re-genenerating src.conf
(given the current problem with the script that does the re-gen).
Reviewed by: gnn
Sponsored by: The FreeBSD Foundation
Sponsored by: iXsystems
MFC after: 2 weeks
wrapper around rman_adjust_resource(). Include a generic implementation,
bus_generic_adjust_resource() which passes the request up to the parent
bus. There is currently no default implementation. A
bus_adjust_resource() wrapper is provided for use in drivers.
Specifically, these changes allow a resource to back a relocatable and
resizable resource such as the I/O window decoders in PCI-PCI bridges.
- rman_adjust_resource() can adjust the start and end address of an
existing resource. It only succeeds if the newly requested address
space is already free. It also supports shrinking a resource in
which case the freed space will be marked unallocated in the rman.
- rman_first_free_region() and rman_last_free_region() return the
start and end addresses for the first or last unallocated region in
an rman, respectively. This can be used to determine by how much
the resource backing an rman must be adjusted to accomodate an
allocation request that does not fit into the existing rman.
While here, document the rm_start and rm_end fields in struct rman,
rman_is_region_manager(), the bound argument to
rman_reserve_resource_bound(), and rman_init_from_resource().
While there, fix the type of the func argument of INIT_TASK macro,
and use the modern name of the analogous facility from Linux kernel.
Sponsored by: The FreeBSD Foundation
MFC after: 1 month
like, determines the path to a pid file as it is specified in a conf file.
Use the new feature for rc.d/named and rc.d/devd, the 2 services in the
base that list their pid files in their conf files.
Remove the now-obsolete named_pidfile, and warn users if they have it set.
on per-device basis.
- While adding support for per-device sysctls, merge from graid branch
support for ADA_TEST_FAILURE kernel option, which opens few more sysctl,
allowing to simulate read and write errors for testing purposes.
- remove self-reference in SEE ALSO section (originally was to s/XR/Xr)
cxgbe.4:
- remove blank line
- add closing .El
Reported by: manlint
MFC after: 3 days
flags, so remove that part from WITHOUT_CXX again.
This is only partially regenerated, as the entries for FDT and GPIO seem to
have switched their default state, too.
o Remove bogus ordering info
o 3C1 actually works, so remove that
o Add warning about making sure BIOS is configured properly for PnP
configured 3c509 cards.
ath_hal needs a lot more work to encompass the list of supported
cards, as the AR5416/AR9160/AR9280/AR9285 list is quite long
and extensive. In addition, there's a lot of AR5212/AR5213 based
cards that aren't on this list.
aligned the same (no functional change at the moment as both list items are the
same number of characters).
Sponsored by: FreeBSD Foundation
MFC after: 3 months
X-MFC with: 218912
FreeBSD" FreeBSD Foundation funded project.
- Add new man pages for the modular congestion control, Khelp and Hhook
frameworks (cc.4, cc.9, khelp.9 and hhook.9).
- Add new man pages for each available congestion control algorithm (cc_chd.4,
cc_cubic.4, cc_hd.4, cc_htcp.4, cc_newreno.4 and cc_vegas.4).
- Add a new man page for the Enhanced Round Trip Time (ERTT) Khelp module
(h_ertt.4).
- Update the TCP (tcp.4) man page to mention the TCP_CONGESTION socket option,
cross reference to cc.4 and remove references to the retired
"net.inet.tcp.newreno" sysctl MIB variable.
In collaboration with: David Hayes <dahayes at swin edu au> and
Grenville Armitage <garmitage at swin edu au>
Sponsored by: FreeBSD Foundation
MFC after: 3 months
then that target is invoked for each architecture rather than the
default action of building world and kernels for each architecture.
- Add a 'make toolchains' wrapper which uses UNIVERSE_TARGET to build
toolchains for all architectures.
- Document JFLAG, MAKE_JUST_KERNELS, and MAKE_JUST_WORLDS variables for
'make universe'.
Reviewed by: bz
MFC after: 1 week
version of it. There is also a WG311v3 which uses a chipset covered by
malo(4). Along the way add the WG311T to the list which is also an
atheros chipset.
PR: docs/154589
Approved by: kib (mentor)
MFC after: 3 days
calling thread's unique integral ID, which is similar to AIX function of
the same name. Bump __FreeBSD_version to note its introduction.
Reviewed by: kib
sbuf_new_for_sysctl(9). This allows using an sbuf with a SYSCTL_OUT
drain for extremely large amounts of data where the caller knows that
appropriate references are held, and sleeping is not an issue.
Inspired by: rwatson
Properly document what `make targets` is supposed to list to avoid
further confusion given the place the target sits. Should have happened
with r217125.
Requested by: imp [1]
Reviewed by: rwatson
may still return a non-zero value... You are not guaranteed to get a one
to one mapping between wakeup_one and zero return values...
Reviewed by: kib
MFC after: 3 days
reading. (This was already done for writing to a sysctl). This
requires all SYSCTL setups to specify a type. Most of them are now
checked at compile-time.
Remove SYSCTL_*X* sysctl additions as the print being in hex should be
controlled by the -x flag to sysctl(8).
Succested by: bde
option. We only support ro mounts for xfs, so it's nice if the examples
we show in the manpage are easy to copy/paste.
PR: docs/149106
Submitted by: amdmi3
MFC after: 3 days
Although not directly related the FreeBSD Foundation funded "Five New TCP
Congestion Control Algorithms for FreeBSD" project, the understanding and
inspiration required to write this documentation was significantly bolstered
by the Foundation's support.
Reviewed by: pjd
MFC after: 1 week
