The NVMe drivers are portable and are already included statically in
GENERIC on other architectures such as aarch64 and riscv64.
Reviewed by: imp
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D44690
As mentioned in zpoolprops(7), on some SSDs, it may not be desirable to
use ZFS autotrim because a large number of trim requests can degrade
disk performance; instead, the pool should be manually trimmed at
regular intervals.
Add a new daily periodic script for this purpose, 801.trim-zfs. If
enabled (daily_trim_zfs_enable=YES; the default is NO), it will run a
'zpool trim' operation on all online pools, or on the pools listed in
'daily_trim_zfs_pools'.
The trim is not started if the pool is degraded (which matches the
behaviour of the existing 800.scrub-zfs script) or if a trim is already
running on that pool. Having autotrim enabled does not inhibit the
periodic trim; it's sometimes desirable to run periodic trims even with
autotrim enabled, because autotrim can elide trims for very small
regions.
PR: 275965
MFC after: 1 week
Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/956
Default to VIMAGE as yes.
Add VIMAGE to __DEFAULT_DEPENDENT_OPTIONS (to define VIMAGE_SUPPORT)
Only output VIMAGE to opt_global.h when VIMAGE support is wanted.
Obtained from: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D39636
This will allow a userland machinery that orchestrates a bridge (e.g. a
jail or vm manager) to not double the number allocation logic. See bug
278130 for longer description and examples.
Reviewed by: glebius, afedorov
Differential Revision: https://reviews.freebsd.org/D44615
PR: 278130
This reverts commit 9eff58c6d5.
We are reverting dc831e93ba ("sound: Get rid of snd_clone and use
DEVFS_CDEVPRIV(9)"), so revert this commit as well since it depends
dc831e93ba.
Catch up with 10a1e981d (2019-03-19) so that one can do
'man SYSCTL_ADD_CONST_STRING' and not get
"No manual entry for SYSCTL_ADD_CONST_STRING".
Reviewed by: sjg
Hot-unplugging a sound device, such as a USB sound card, whilst being
consumed by an application, results in an infinite loop until either the
application closes the device's file descriptor, or the channel
automatically times out after hw.snd.timeout seconds. In the case of a
detach however, the timeout approach is still not ideal, since we want
all resources to be released immediatelly, without waiting for N seconds
until we can use the bus again.
The timeout mechanism works by calling chn_sleep() in chn_read() and
chn_write() (see pcm/channel.c) in order to send the thread to sleep,
using cv_timedwait_sig(). Since chn_sleep() sets the CHN_F_SLEEPING flag
while waiting for cv_timedwait_sig() to return, we can test this flag in
pcm_unregister() (called during detach) and wakeup the sleeping
thread(s) to immediately kill the channel(s) being consumed.
Sponsored by: The FreeBSD Foundation
MFC after: 2 months
PR: 194727, 278055, 202275, 220949, 272286
Reviewed by: dev_submerge.ch, markj
Differential Revision: https://reviews.freebsd.org/D43545
Currently the snd_clone framework creates device nodes on-demand for
every channel, through the dsp_clone() callback, and is responsible for
routing audio to the appropriate channel(s). This patch gets rid of the
whole snd_clone framework (including any related sysctls) and instead
uses DEVFS_CDEVPRIV(9) to handle device opening, channel allocation and
audio routing. This results in a significant reduction in code size as
well as complexity.
Behavior that is preserved:
- hw.snd.basename_clone.
- Exclusive access of an audio device (i.e VCHANs disabled).
- Multiple processes can read from/write to the device.
- A device can only be opened as many times as the maximum allowed
channel number (see SND_MAXHWCHAN in pcm/sound.h).
- OSSv4 compatibility aliases are preserved.
Behavior changes:
Only one /dev/dspX device node is created (on attach) for each audio
device, as opposed to the current /dev/dspX.Y devices created by
snd_clone. According to the sound(4) man page, devices are not meant to
be opened through /dev/dspX.Y anyway, so it is best if we do not create
device nodes for them in the first place. As a result of this, modify
dsp_oss_audioinfo() to print /dev/dspX in the "ai->devnode", instead of
/dev/dspX.Y.
Sponsored by: The FreeBSD Foundation
MFC after: 2 months
Reviewed by: dev_submerge.ch, markj
Differential Revision: https://reviews.freebsd.org/D44411
This allows for setting a different compiler for building hostprogs
when cross compiling.
Obtained from: Juniper Networks, Inc.
Reviewed by: sjg
Differential Revision: https://reviews.freebsd.org/D44536
This adds support for two new diff algorithms, Myers diff and Patience
diff.
These algorithms perform a different form of search compared to the
classic Stone algorithm and support escapes when worst case scenarios
are encountered.
Add the -A flag to allow selection of the algorithm, but default to
using the new Myers diff implementation.
The libdiff implementation currently only supports a subset of input and
output options supported by diff. When these options are used, but the
algorithm is not selected, automatically fallback to the classic Stone
algorithm until support for these modes can be added.
Based on work originally done by thj@ with contributions from kevans@.
Sponsored by: Klara, Inc.
Reviewed by: thj
Differential Revision: https://reviews.freebsd.org/D44302
There has not been planned changes so far to the interface. Remove the
section as it may not be relevant anymore.
Sponsored by: Juniper Networks, Inc.
Reviewed by: glebius
Differential Revision: https://reviews.freebsd.org/D44501
The history section (added in CSRG) claimed both first appeared in v6.
Looking at the manuals in the TUHS archive, /dev/mem was in v1
and /dev/kmem was introduced in v5.
Reviewed by: imp
Obtained from: OpenBSD
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D44486
Add basic CTF support and a CTF-powered pretty-printer to ddb.
The db_ctf.* files expose a basic interface for fetching type
data for ELF symbols, interacting with the CTF string table,
and translating type identifiers to type data.
The db_pprint.c file uses those interfaces to implement
a pretty-printer for all kernel ELF symbols.
The pretty-printer works with symbol names and arbitrary addresses:
pprint struct thread 0xffffffff8194ad90
Pretty-printing currently only works after the root filesystem
gets mounted because the CTF info is not available during
early boot.
Differential Revision: https://reviews.freebsd.org/D37899
Approved by: markj (mentor)
Execute the mandoc -Tlint option on assert(3). This results in two areas
of updates:
Remove invalid Rs block
Remove invalid Re block
Reviewed by: mhorne
MFC after: 3 days
Pull Request: https://github.com/freebsd/freebsd-src/pull/1132
The macro originates from BSD/OS, with a different etymology than what
is presented. Add a brief HISTORY section to capture this.
Reviewed by: emaste
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D44439
I am unsure of its exact historical usage, but, we no longer ship GCC
with FreeBSD, and it should have been removed.
Reviewed by: imp, emaste
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D44440
Improving first-glance comprehension that this manual page applies to
igb/lem interfaces provided by the em(4) driver.
While here, tag SPDX, link the framework, and shuffle a sentence to fix
linter warning.
Co-authored-by: mhorne
Reviewed by: mhorne
MFC after: 1 week
Pull Request: https://github.com/freebsd/freebsd-src/pull/1134
This will be used by bhyve to build a device tree when booting arm64
guests.
Reviewed by: corvink, jhb
MFC after: 1 week
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D40994
Correct the surname of one of authors of RFC 8985 and add RFC 5681 and
RFC 6937 (PRR: Proportional Rate Reduction for TCP).
Reviewed by: tuexen
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D44399
Setting NO_CTF, NO_DEBUG_FILES, NO_INSTALLLIB, NO_MAN, NO_PROFILE,
and NO_WARNS was deprecated in 2014 and made an error prior to the
13.0.0 release in commit d3a5bf95f2.
Likewise, NO_WERROR was made an error prior to 13.0.0 in commit
7fa2f2a62f.
Remove this transition aid making these variables no-ops as setting them
will result in an error on all supported releases.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D44345
MacOS has case insensitive filesystems by default. So trying to link
between foo.X and FOO.X causes an error of some sort since we unlink the
old foo file destroying the newly installed foo due to the insensitive
nature of the FS. Assume that this is true on darwin/macos, though it is
only try by default there.
Perhaps install should grow smarts to know when this is the case, though
that looked much trickier. There didn't seem to be a flag to check. This
would be better, imho, since we could still write the METALOG data
correctly (images created from these metalogs are imperfect due to this
relatively issue...).
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D44347
There's no real benefit from installing both cam.4 and CAM.4. The latter
is not an kernel option. This hits a pathological case in mlinks: we're
trying to link to another file and the second link fails on
case-preserving, case-insensitive filesystems, like on MacOS by default.
Since we don't need both, avoid this pathological case.
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D44346
this is a very early script to support cloudinit, it does not intend to
be a full featured cloudinit client, but will support a good enough
subset to be viable in most case.
It support nocloud and openstack config-2 config drive mode (iso9660 or
msdosfs)
The following features are currently supported:
- adding users (including a default user named 'freebsd' with password
'freebsd'
- adding groups
- adding ssh keys
- static ipv4, static ipv6, dynamic ipv4
With this one is able to use the 'bring your own image feature" out of
box.
It is expected that the script grows the support of other clouds
supporting cloud-init, contributions are welcomed.
It is designed to be only run once via the firstboot mecanism.
Sponsored by: OVHCloud
MFC After: 3 weeks
Differential Revision: https://reviews.freebsd.org/D44141
The public bus_release_resource() API still accepts both forms, but
the internal kobj method no longer passes the arguments.
Implementations which need the rid or type now use rman_get_rid() or
rman_get_type() to fetch the value from the allocated resource.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D44131
