Ensure that the stack does not generate a DSACK block for user
data received on a SYN segment in SYN-SENT state.
Reviewed by: rscheff
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D29376
Sponsored by: Netflix, Inc.
I only tested the WARNS=6 change on AArch64 and AMD64, but this file has
unused functions for architectures with LDBL_PREC == 53.
While touching this file change the LDBL_PREC == 53 checks to i386 checks.
The long double tests should only be disabled for i386 (due to the rather
odd rounding mode that it uses) not all architectures where long double
is the same as double.
PR: 205449
Fixes: 87d65c747a ("lib/msun: Allow building tests with WARNS=6")
Reported by: Jenkins
This warning is very rarely useful (inline is a hint and not mandatory).
This flag results in many warnings being printed when compiling C++
code that uses the standard library with GCC.
This flag was originally added in back in r94332 but the flag is a no-op
in Clang ("This diagnostic flag exists for GCC compatibility, and has no
effect in Clang"). Removing it should make the GCC build output slightly
more readable.
Reviewed By: jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D29235
If all the require variables (XCC/XCXX/XCPP/XLD) are already set in the
environment, we don't have to infer a default value for the cross toolchain
path. This avoids an additional `brew --prefix` call when building with
cheribuild (since it already sets all these variables).
Some CPUs (e.g. AArch64 QEMU) cannot trap on floating point exceptions and
therefore ignore the writes to the floating point control register inside
feenableexcept(). If no exceptions are enabled after
feenableexcept(FE_ALL_EXCEPT), we can assume that the CPU does not
support exceptions and we can then skip the test.
Reviewed By: dim
Differential Revision: https://reviews.freebsd.org/D29095
These appears to have been resolved by compiling the test with -fno-builtin
and/or using a newer compiler.
PR: 208703
Reviewed By: ngie
Differential Revision: https://reviews.freebsd.org/D28884
This provides better error messages that just an assertion failure and
also makes it easier to mark individual tests as XFAIL.
It was also helpful when coming up with D28786 and D28787.
Differential Revision: https://reviews.freebsd.org/D28798
Currently, AMD-vi PCI-e passthrough will lead to the following lines in
dmesg:
"kernel: CPU0: local APIC error 0x40
ivhd0: Error: completion failed tail:0x720, head:0x0."
After some tracing, the problem is due to the interaction with
amdvi_alloc_intr_resources() and pci_driver_added(). In ivrs_drv, the
identification of AMD-vi IVHD is done by walking over the ACPI IVRS
table and ivhdX device_ts are added under the acpi bus, while there are
no driver handling the corresponding IOMMU PCI function. In
amdvi_alloc_intr_resources(), the MSI intr are allocated with the ivhdX
device_t instead of the IOMMU PCI function device_t. bus_setup_intr() is
called on ivhdX. the IOMMU pci function device_t is only used for
pci_enable_msi(). Since bus_setup_intr() is not called on IOMMU pci
function, the IOMMU PCI function device_t's dinfo->cfg.msi is never
updated to reflect the supposed msi_data and msi_addr. So the msi_data
and msi_addr stay in the value 0. When pci_driver_added() tried to loop
over the children of a pci bus, and do pci_cfg_restore() on each of
them, msi_addr and msi_data with value 0 will be written to the MSI
capability of the IOMMU pci function, thus explaining the errors in
dmesg.
This change includes an amdiommu driver which currently does attaching,
detaching and providing DEVMETHODs for setting up and tearing down
interrupt. The purpose of the driver is to prevent pci_driver_added()
from calling pci_cfg_restore() on the IOMMU PCI function device_t.
The introduction of the amdiommu driver handles allocation of an IRQ
resource within the IOMMU PCI function, so that the dinfo->cfg.msi is
populated.
This has been tested on EPYC Rome 7282 with Radeon 5700XT GPU.
Sponsored by: The FreeBSD Foundation
Reviewed by: jhb
Approved by: philip (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D28984
* device_printf() is effectively a printf
* if_printf() is effectively a LOG_INFO
This allows subsystems to log device/netif stuff using different log levels,
rather than having to invent their own way to prefix unit/netif names.
Differential Revision: https://reviews.freebsd.org/D29320
Reviewed by: imp
The header specifies the size of the option in multiples of eight bytes.
The option consists of an eight-byte header followed by one or more IPv6
addresses, so the option is invalid if the size is not equal to 1+2n for
some n>0. Check this.
The bug can cause random stack data to be formatted as an IPv6 address
and passed to resolvconf(8), but a host able to trigger the bug may also
specify arbitrary addresses this way.
Reported by: Q C <cq674350529@gmail.com>
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
e4b8deb222 removed the last in-tree uses of PCPU_INC(). Its
potential benefit is also practically nonexistent. Non-x86
platforms already implement it as PCPU_ADD(..., 1), and according
to [0] there are no recent x86 processors for which the 'inc'
instruction provides a performance benefit over the equivalent
memory-operand form of the 'add' instruction. The only remaining
benefit of 'inc' is smaller instruction size, which in this case
is inconsequential given the limited number of per-CPU data consumers.
[0]: https://www.agner.org/optimize/instruction_tables.pdf
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D29308
Notable upstream pull request merges:
#11652 Split dmu_zfetch() speculation and execution parts
#11682 Fix zfs_get_data access to files with wrong generation
#11735 Clean up RAIDZ/DRAID ereport code
#11737 Initialize metaslab range trees in metaslab_init
#11739 FreeBSD: make seqc asserts conditional on replay
#11763 Allow setting bootfs property on pools with indirect vdevs
#11767 FreeBSD: Fix memory leaks in kstats
ipv6_ipfilter_rules was obsoleted because of ipfilter was updated, and
rc_parallel_start was reverted to undergo further refinement.
PR: 254398
Fixes: e2ad10e847, f61831d2e8
Currently macOS and DragonFlyBSD get their own special case and only
handle x86. Since all the FreeBSD cases should be general enough for
macOS and DragonFlyBSD (and the x86 ones are identical to the existing
ones) we can just delete the special cases and reuse the FreeBSD ones.
Note that upstream has since removed all the architecture-specific
checks in this file, with the only code relevant to us being an
endianness check that uses the generic compiler-provided macros. Thus
this patch will not be upstreamed, and will be dropped in a future
vendor import.
Reviewed by: dim
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D29352
Since set -e is enabled by sys.mk, if the tool cannot be found in PATH
then the entire shell command line fails, causing us to not print the
error message below and instead silently (due to the @) fail, only
getting the usual "Error code 1" print from bmake. Thus, provide a dummy
default that will never exist (the same as is used by meta2deps.sh) if
which fails so that we get the error message as intended.
MFC after: 1 week
For guests running under some kind of VMMs, configuration structure is
available in memory space but not I/O space.
Reported by: Yuan Rui <number201724@me.com>
MFC after: 2 weeks
Reviewed by: rpokala, bryanv, jhb
Approved by: philip (mentor)
Differential Revision: https://reviews.freebsd.org/D28818
The MSI-X resource shouldn't be assumed to be always on BAR1.
The Virtio v1.1 Spec did not specify that MSI-X table and PBA BAR has to
be BAR1 either.
Reported by: Yuan Rui <number201724@me.com>
MFC after: 2 weeks
Reviewed by: bryanv, jhb
Approved by: philip (mentor)
Differential Revision: https://reviews.freebsd.org/D28817
kevans actually caught this in the original review and I fixed it, but
then I committed an older copy of the branch. Whoops.
Reported by: kevans
MFC after: 13 days
MFC with: 929acdb19a
Differential Revision: https://reviews.freebsd.org/D29031
During a recent NFSv4 testing event a test server caused a hang
where "umount -N" failed. The renew thread was sleeping on "nfsv4lck"
and the "umount" was sleeping, waiting for the renew thread to
terminate.
This is the first of two patches that is hoped to fix the renew thread
so that it will terminate when "umount -N" is done on the mount.
nfsv4_lock() checks for forced dismount, but only after it wakes up
from msleep(). Without this patch, a wakeup() call was required.
This patch adds a 1second timeout on the msleep(), so that it will
wake up and see the forced dismount flag. Normally a wakeup()
will occur in less than 1second, but if a premature return from
msleep() does occur, it will simply loop around and msleep() again.
While here, replace the nfsmsleep() wrapper that was used for portability
with the actual msleep() call and make the same change for nfsv4_getref().
MFC after: 2 weeks
While here, make sure only the PF driver attempts to program the global
RSS key (with options RSS). The VF driver doesn't have access to those
device registers.
MFC after: 1 week
Sponsored by: Chelsio Communications
This is a prerequisite to using these functions outside of ddb, but also
provides some cleanup and minor refactoring. This code is almost
entirely duplicated between the two implementations, the only
significant difference being the lack of dbreg synchronization on i386.
Cleanups are:
- demote some internal functions to static
- use the constant NDBREGS instead of a '4' literal
- remove K&R definitions
- some added comments
Reviewed by: kib, jhb
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D29153
A repeat call will recreate the memory windows in the hardware and move
them to their last-known positions without repeating any of the software
initialization.
MFC after: 1 week
Sponsored by: Chelsio Communications
The LOR also happens on amd64 and other architectures. Ideally we would
fix this. However, in order to get Jenkins green again to catch real
regressions, we should skip this test for now.
PR: 251726
Reviewed By: lwhsu
Differential Revision: https://reviews.freebsd.org/D29341
I was trying to debug why this test is working locally but failing in CI.
While doing so I made some small changes to allow running it with set -e.
It turns out the problem is that find_iface does not return anything in
Jenkins, so all following tests fail with obscure error messages.
To handle this case exit early if $eth is empty.
Reviewed By: lwhsu
Differential Revision: https://reviews.freebsd.org/D29340
In "heads" output just improve the header to describe all of the columns.
In "hooks" print filter name and hook name delimited with colon, so that
it matches "heads" output and also can be copy-and-pasted straight into
the command line for future "link" command.
This file inherits some boilerplate and structure from the analogous
file in aesni(4), aesni_wrap.c. Note the derivation and the copyright
holders of that file.
For example, the AES-XTS bits added in 4979620ece were ported from
aesni(4).
Requested by: jmg
Reviewed by: imp, gnn
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D29268
