- refactorize packet receive path. Make sure that we don't leak mbufs
and/or that we don't create holes in RX descriptor ring
- slightly simplify handling with TX descriptors
MFC after: 4 weeks
Previously, the -p and -c flags were ignored when reading from stdin
Additionally, -s and -c can be used together now.
PR: 247295
Reviewed by: kevans
MFC after: 2 weeks
Relnotes: yes
Sponsored by: Klara Inc.
Differential Revision: https://reviews.freebsd.org/D25362
Due to kldxref not being able to generate hints for nonnative platforms,
any cross built VM images do not have /boot/kernel/linker.hints.
This prevents the virtio modules from being loaded, as the fallback code
will always fail the version check when the hints are missing.
Since we want to be able to generate VM images for 32 bit powerpc, add the
virtio modules to GENERIC like we do on powerpc64.
Reviewed by: jhibbits
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D25271
Since qemu does not implement the L2 cache, we get stuck forever waiting
for a bit to be set when trying to invalidate it.
To prevent that, we should bail out if the L2 cache is missing.
One easy way to check this is L2CFG0 == 0 (since L2CSIZE always has at
least one bit set in a valid implementation)
(tested on qemu, rb800, and x5000)
Reviewed by: jhibbits
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D25225
By using DWC TRM terminology, normal descriptor format should be named
extended and alternate descriptor format should be named normal.
Should not been functional change.
MFC after: 4 weeks
Use naming nomenclature used in DesignWare TRM.
This driver was written by using Altera (now Intel) documentation for Arria
FPGA manual. Unfortunately this manual used very different (and in some cases
opposite naming) for registers and descriptor fields. Unfortunately,
this makes future expansion extremely hard.
Should not been functional change.
MFC after: 4 weeks
When the PCI and CPU physical addresses are identical it doesn't matter
which is used to create the resources, however on some systems, e.g.
qemu armv7 virt, they are different. This leads to a panic as we try to
map the wrong physical address into the kernel address space.
Reported by: Jenkins via trasz
Sponsored by: Innovate UK
- temporarily disable handling with phy, we don't have driver for it yet
- always clear cause for administartive interrupt.
While I'm in, fix style(9) (mainly whitespace).
MFC after: 4 weeks
- only normal memory window is mandatory, prefetchable memory and
I/O windows should be optional
- full PCIe configuration space is supported
- remove duplicated check from function for accessing configuration space.
It is already contained in pci_dw_check_dev()
MFC after: 2 weeks
The AXI bridge is different between ARMADA 38x and 8K, and both platforms
needs specific setup to mitigate HW issues with accessing RTC registers.
MFC after: 2 weeks
Fix the rtprio option that for some reason was progessively becoming an
option showing the priority class of threads. In particular:
- use the constants defined in sys/sys/rtprio.h instead of those defined in
sys/sys/priority.h: this helps making clearer that the code actually is
about realtime priorities and not standard scheduler priorities;
- remove the PRI_ITHD case that has nothing to do with realtime priorities;
- convert the priority levels to realtime priority levels using the same
formulas used for pri_to_rtp function in sys/kern/kern_resource.c.
- remove outdated note "101 = not a realtime process" in the man page and
replace it with a more useful reference to man 1 rtprio.
Approved by: src (mckusick), manpages (bcr), gerald (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D25266
Functions which take untrusted user ranges must validate against the
bounds of the map, and also check for wraparound. Instead of having the
same logic duplicated in a number of places, add a function to check.
Reviewed by: dougm, kib
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D25328
out verbatim to the disk: see ffs_sbput() in sys/ufs/ffs/ffs_subr.c.
It contains a pointer to the fs_summary_info structure. This pointer
value inadvertently causes garbage to be stored. It is garbage because
the pointer to the fs_summary_info structure is the address the then
current stack or heap. Although a mere pointer does not reveal anything
useful (like a part of a private key) to an attacker, garbage output
deteriorates reproducibility.
This commit zeros out the pointer to the fs_summary_info structure
before writing the out the superblock.
Reviewed by: kib
Tested by: Peter Holm
PR: 246983
Sponsored by: Netflix
fs_summary_info structure. This change was originally done
by the CheriBSD project as they need larger pointers that
do not fit in the existing superblock.
This cleanup of the superblock eases the task of the commit
that immediately follows this one.
Suggested by: brooks
Reviewed by: kib
PR: 246983
Sponsored by: Netflix
This chip is used in the Rasperry Pi 4, and is supported by the if_genet
driver. Currently we use the ukphy mii driver, this patch switches over
to the brgphy mii driver instead. To support the rgmii-rxid phy mode,
which is now the default in the Linux dtb, we add support for clock
skewing.
These changes are taken from OpenBSD and NetBSD, except for the bailout
in brgphy_bcm54xx_clock_delay() in rgmii mode, which was found necessary
after testing.
Submitted by: Robert Crowston, crowston at protomail.com
Differential Revision: https://reviews.freebsd.org/D25251
hw.bus.info was added in r68522 as a node, but there was never anything
connected "behind" it. Its only purpose is to return a struct u_businfo.
The only in-base consumer are devinfo(3)/devinfo(8).
Rewrite the handler as SYSCTL_PROC and mark it as MPSAFE and read-only
as there never was a writable path.
Reviewed by: kib
Approved by: kib (mentor)
Sponsored by: Mysterious Code Ltd.
Differential Revision: https://reviews.freebsd.org/D25321
If multithreaded non-Linux process execs Linux binary, then non-Linux
threads different from the one that execing are cleared by
single-threading at boundary, and then terminating them in
post_execve(). Since at that time the process is already switched to
linux ABI, linuxolator is involved in the thread clearing on boundary,
but cannot find the emul data.
Handle it by pre-creating emuldata for all threads in the execing process.
Also remove a code in linux_proc_exec() handler that cleared emul data
for other threads when execing from multithreaded Linux process. It is
excessive.
PR: 247020
Reported by: Martin FIlla <freebsd@sysctl.cz>
Reported by: Henrique L. Amorim, Independent Security Researcher
Reported by: Rodrigo Rubira Branco (BSDaemon), Amazon Web Services
Reviewed by: markj
Tested by: trasz
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D25293
[BasicAA] Make BasicAA a cfg pass.
Summary:
Part of the changes in D44564 made BasicAA not CFG only due to it
using PhiAnalysisValues which may have values invalidated. Subsequent
patches (rL340613) appear to have addressed this limitation.
BasicAA should not be invalidated by non-CFG-altering passes. A
concrete example is MemCpyOpt which preserves CFG, but we are testing
it invalidates BasicAA.
llvm-dev RFC:
https://groups.google.com/forum/#!topic/llvm-dev/eSPXuWnNfzM
Reviewers: john.brawn, sebpop, hfinkel, brzycki
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D74353
This fixes an issue with clang's -fintegrated-cc1 feature, which could
make it output slightly different assembly code, depending on the way it
was invoked.
In r361755 we attempted to work around it by disabling the integrated
cc1 stage, but it did not solve the root cause for all situations.
Extensive testing and bisecting showed that the above change finally
makes the output deterministic, even if -fintegrated-cc1 is on.
Reported by: Fabian Keil <fk@fabiankeil.de>
PR: 246630
MFC after: 3 days
This is in preparation for enabling a loadable SCTP stack. Analogous to
IPSEC/IPSEC_SUPPORT, the SCTP_SUPPORT kernel option must be configured
in order to support a loadable SCTP implementation.
Discussed with: tuexen
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Instead of panic after one second of polling, make the normal timeout
handler to activate, reset the controller and abort the outstanding
requests. If all of it won't happen within 10 seconds then something
in the driver is likely stuck bad and panic is the only way out.
In particular this fixed device hot unplug during execution of those
polled commands, allowing clean device detach instead of panic.
MFC after: 1 week
Sponsored by: iXsystems, Inc.
Add EXAMPLES covering -d, -n and -p
Include small explanation about the size of the chunks for the -n option
Approved by: 0mp
Differential Revision: https://reviews.freebsd.org/D25198
- Mention option's arguments in the list of options (so that now we mention
"-N system" instead of just "-N").
- Stylize signals and other constants like O_APPEND with Dv.
- Sort options.
- Change indentation width for readability.
- Fix a couple of typos.
- Sort symbols list.
- Use Sy instead of Cm for symbols. They are not command modifiers.
- Use Ex -std in the EXIT STATUS section for consistency with other manual
pages.
- Use Ql instead of Dq Li for inline code examples as Li has recently been
deprecated by mdoc.
Reviewed by: bcr
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D25332
- Update synopsis to present all available arguments.
- Consistently call the argument specifying an arbitrary directory a
"directory".
- Do not put macros into -width argument to Bl. They do not expand there.
- Stylize command modifiers like "daily" with Cm instead of Pa. While
technically periodic(8) operates on directories with such names, it is
confusing from the perspective of the manual page reader as Pa and Ar are
stylized the same way. Also, I cannot recall a single manual page where
Pa would be used to describe the syntax of command-line arguments.
MFC after: 2 weeks
