A rarely occurring event (e.g. an event that occurs less than 1000
times during execution of a program) may require a lower minimum
threshold than 1000. Replace the hardcoded 1000 with a sysctl that
the administrator can use to permit smaller sampling count values.
Reviewed by: mhorne, mav
Sponsored by: University of Cambridge, Google, Inc.
Differential Revision: https://reviews.freebsd.org/D35400
Debug data is enabled via `makeoptions DEBUG=-g` in the kernel config
file (e.g. GENERIC).
If debug data is enabled and WITHOUT_KERNEL_SYMBOLS is set then debug
data is included in the kernel and module files.
PR: 264433
Discussed with: markj
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Add list of supported names to iwlwifi.4 and an extended list with
PCI IDs and firmware prefix to iwlwififw.4.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D35227
If one boots up multiple copies of a template VM image containing a
zpool, the pool GUIDs will be identical, making it impossible to, e.g.,
share datasets between them.
This diff introduces a simple workaround for the problem: one can use
the script to, upon first boot, assign a new GUID to one or more zpools.
This will be useful when building ZFS-based VM images from release(7).
Reviewed by: mav, allanjude, asomers
Reviewed by: Pau Amma (docs)
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D35336
This is an initial commit for RDMA FreeBSD driver for Intel(R) Ethernet
Controller E810, called irdma. Supporting both RoCEv2 and iWARP
protocols in per-PF manner, RoCEv2 being the default.
Testing has been done using krping tool, perftest, ucmatose, rping,
ud_pingpong, rc_pingpong and others.
Signed-off-by: Eric Joyner <erj@FreeBSD.org>
Reviewed by: #manpages (pauamma_gundo.com) [documentation]
MFC after: 1 week
Relnotes: yes
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D34690
The += for unique assignments is equivalent to =. Make these confusing
assignments simply assignments.
Reviewed by: emaste
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D35242
Kthread worker is a single thread workqueue which can be used in cases
where specific kthread association is necessary, for example, when it
should have RT priority or be assigned to certain cgroup.
This change implements Linux v4.9 interface which mostly hides kthread
internals from users thus allowing to use ordinary taskqueue(9) KPI.
As kthread worker prohibits enqueueing of already pending or canceling
tasks some minimal changes to taskqueue(9) were done.
taskqueue_enqueue_flags() was added to taskqueue KPI which accepts extra
flags parameter. It contains one or more of the following flags:
TASKQUEUE_FAIL_IF_PENDING - taskqueue_enqueue_flags() fails if the task
is already scheduled to execution. EEXIST is returned and the
ta_pending counter value remains unchanged.
TASKQUEUE_FAIL_IF_CANCELING - taskqueue_enqueue_flags() fails if the
task is in the canceling state and ECANCELED is returned.
Required by: drm-kmod 5.10
MFC after: 1 week
Reviewed by: hselasky, Pau Amma (docs)
Differential Revision: https://reviews.freebsd.org/D35051
In some build configurations a warning about (an absolute path for)
-fuse-ld= not being supported by GCC was emitted during cleandir or
other non-build make targets.
For these non-build targets COMPILER_TYPE is set to "none" but we
treated the .else case for COMPILER_TYPE==clang as implying gcc.
Check instead for COMPILER_TYPE==gcc.
PR: 263913
Reported by: pstef
Reviewed by: pstef
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Linux has more tolerant checks of the user supplied cpuset_t's.
Minimum cpuset_t size that the Linux kernel permits in case of
getaffinity() is the maximum CPU id, present in the system / NBBY,
the maximum size is not limited.
For setaffinity(), Linux does not limit the size of the user-provided
cpuset_t, internally using only the meaningful part of the set, where
the upper bound is the maximum CPU id, present in the system, no larger
than the size of the kernel cpuset_t.
Unlike FreeBSD, Linux ignores high bits if set in the setaffinity(),
so clear it in the sched_setaffinity() and Linuxulator itself.
Reviewed by: Pau Amma (man pages)
In collaboration with: jhb
Differential revision: https://reviews.freebsd.org/D34849
MFC after: 2 weeks
Mention the loader tunable from 6a50157090
that needs to be set for system with more than 4GB of physical memory.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Retrieve FreeBSD revision number directly from sys/conf/newvers.sh
when building the compiler target triple value, avoiding manual
intervention on other files every new release.
Reviewed by: imp
MFC after: 2 months
Sponsored by: Instituto de Pesquisas Eldorado (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D34429
src.conf(5) previously stated they would be removed before FreeBSD 12.0,
but that did not happen. Change it to "a future version of FreeBSD."
Also pick up LOADER_KBOOT change (enabled on x86) in src.conf regen.
Reported by: jhb
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
This fixes incomplete commit 2e547442ab
New sysctl allows to mark transmitted PPPoE LCP Control
ethernet frames with needed 3-bit Priority Code Point (PCP) value.
Confirming driver like if_vlan(4) uses the value to fill
IEEE 802.1p class of service field.
This is similar to Cisco IOS "control-packets vlan cos priority"
command.
It helps to avoid premature disconnection of user sessions
due to control frame drops (LCP Echo etc.)
if network infrastructure has a botteleck at a switch
or the xdsl DSLAM.
See also:
https://sourceforge.net/p/mpd/discussion/44692/thread/c7abe70e3a/
Tested by: Klaus Fokuhl at SourceForge
MFC after: 2 weeks
Get amd64 compiling. However, the current kboot supports an old way of
enumerating memory and the new way needs to be incorporated as well. The
powerpc folks could use either, it seems and newer powerpc platforms
need some changes for kboot to work anyway.
This commit includes the linker script, trampoline code to start the new
kernel, Linux system calls and the necessary configuration glue needed
to build the binaries.
This includes a quick hack to get multiboot support, but we need to
really share these defines. The multiiboot2.h is the minimum needed to
build. We have multiboot information in three places now, so a
refactoring is in order.
This should be considered, at best, preliminary and experimental for
anybody wishing to try it out.
Sponsored by: Netflix
Reviewed by: tsoome
Differential Revision: https://reviews.freebsd.org/D35100
New sysctl allows to mark transmitted PPPoE LCP Control
ethernet frames with needed 3-bit Priority Code Point (PCP) value.
Confirming driver like if_vlan(4) uses the value to fill
IEEE 802.1p class of service field.
This is similar to Cisco IOS "control-packets vlan cos priority"
command.
It helps to avoid premature disconnection of user sessions
due to control frame drops (LCP Echo etc.)
if network infrastructure has a botteleck at a switch
or the xdsl DSLAM.
See also:
https://sourceforge.net/p/mpd/discussion/44692/thread/c7abe70e3a/
Tested by: Klaus Fokuhl at SourceForge
MFC after: 2 weeks
Latest dirdeps.mk is far more efficient when generating
DIRDEPS_CACHE.
Update dirdeps-options.mk to allow DEP_RELDIR to factor
into option processing. This is not very interesting if all
options are global.
Provide a very brief introduction to capabilities, using a couple of
sentences from David Chisnall's mailing list response[1] to a question
about Linux capabilities and Capsicum.
Mailing list subject (in case the archive URL changes) was
Re: Linux capabilities to Capsicum
[1] https://lists.freebsd.org/archives/freebsd-hackers/2022-April/001032.html
Reviewed by: oshogbo
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D34945
This argument is useless for the vast majority of drivers. For now,
use __VA_ARGS__ wrapper macros so that that the *DRIVER_MODULE()
macros accept both the old version (with a devclass) and the new
version (which omits the argument and stores NULL in the
driver_module_data structure). This provides an API compatiblity
shim that can be merged to older stable branches.
Once all drivers relevant to 14.0 (both in and out of tree) have been
updated, the API compat shims can be dropped.
Reviewed by: imp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D34963
These can be used in place of the CTRn() macros which require n to match
the number of optional arguments.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D34852
French national organization for standardization as "NF Z71‐300"
PR: 160227
Approved by: emaste
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D34886
Replace the old snd_bwnd field which was kept for compatibility with the
t_flags2 field from the tcpcb. This exposes in siftr logs interesting
things such as ECN, PLPMTUD, Accurate ECN and if first bytes are
complete.
Reviewed by: rscheff (transport), chengc_netapp.com, debdrup (manpages)
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
X-NetApp-PR: #73
Differential Revision: https://reviews.freebsd.org/D34672
It supports only the obsolete SMBv1 protocol, is known to be buggy, and
likely has security vulnerabilities. It will either be updated or
removed in the future, but for now at least describe the current state
in the man page.
PR: 263043
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Add three hooks to the livedump process: before, after, and for each
block of dumped data. This allows, for example, quiescing the system
before the dump begins or protecting data of interest to ensure its
consistency in the final output.
Reviewed by: markj, kib (previous version)
Reviewed by: debdrup (manpages)
Reviewed by: Pau Amma <pauamma@gundo.com> (manpages)
MFC after: 3 weeks
Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D34067
This dumper can instantiate and write the dump's contents to a
file-backed vnode.
Unlike existing disk or network dumpers, the vnode dumper should not be
invoked during a system panic, and therefore is not added to the global
dumper_configs list. Instead, the vnode dumper is constructed ad-hoc
when a live dump is requested using the new ioctl on /dev/mem. This is
similar in spirit to a kgdb session against the live system via
/dev/mem.
As described briefly in the mem(4) man page, live dumps are not
guaranteed to result in a usuable output file, but offer some debugging
value where forcefully panicing a system to dump its memory is not
desirable/feasible.
A future change to savecore(8) will add an option to save a live dump.
Reviewed by: markj, Pau Amma <pauamma@gundo.com> (manpages)
Discussed with: kib
MFC after: 3 weeks
Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D33813
Add the missing .El which fixes the indentation of the memory range
definitions and operation. Add subsection headings to further clarify
this section. Do the same for the RETURN VALUES section, and mention
explicitly that MEM_EXTRACT_PADDR always returns zero.
Reviewed by: markj, 0mp, Pau Amma <pauamma@gundo.com>
Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D34574
