The "quantum" attribute of HTB is documented as:
Number of bytes to serve from this class before the scheduler
moves to the next class.
Since v1.3.2-rc1~225 we compute what we think is the appropriate
value and pass it on the TC command line. But kernel and
subsequently TC use uint32_t to store this value. If we compute
value outside of this type then TC fails and prints usage which
we then interpret as an error message. Needlessly long error
message. While there's not much we can do about the latter, we
can put a cap on the value and stop tickling this behavior of TC.
Fixes: 065054daa7
Resolves: https://issues.redhat.com/browse/RHEL-34112
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Since OVS keeps desired state in a DB, upon sudden crash of the
host we may leave a port behind. There's no problem on VM
shutdown or NIC hotunplug as we call corresponding del-port
function (virNetDevOpenvswitchRemovePort()). But if the host
suddenly crashes we won't ever do that. What happens next, is
when OVS starts it finds desired state in its DB and creates a
stale port.
OVS added support for transient ports in v2.5.0 (Feb 2016) and
since its v2.9.0 it even installs a systemd service
(ovs-delete-transient-ports) that automatically deletes transient
ports on system startup. If we mark a port as transient then OVS
won't restore its state on restart after crash.
This change may render "--may-exist" argument redundant, but I'm
not sure about all the implications if it was removed. Let's keep
it for now.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/615
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
The @brname argument of virNetDevOpenvswitchRemovePort() is and
was unused ever since its introduction in v0.9.11-rc1~257. Just
remove it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The comment to virNetDevOpenvswitchInterfaceGetMaster() contains
wrong function name. Fix this.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Add DMI support for risc-v and mips. Attempt to read dmidecode and
fall back to old behavior if that fails.
The SMBIOS specification[1] officially supports both RISC-V and LoongArch.
Some mips-based Loongson-3 processors also have SMBIOS.
[1] https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.7.0.pdf
Signed-off-by: Brett Holman <brett.holman@canonical.com>
Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
The PCI VPD (Vital Product Data) may be missing or the kernel can report
presence but not actually have the data. Also the data is specified by
the device vendor and thus may be invalid in some cases.
To avoid log spamming, since the only usage in the node device driver is
ignoring errors, remove all error reporting.
Closes: https://gitlab.com/libvirt/libvirt/-/issues/607
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The VPD parsing is fragile and depends on hardware vendor's adherance to
standards. Since libvirt only ever uses this data to report it in the
nodedev XML which ignores any errors there's no much point in having
error reporting which I've added recently.
Turn the errors into VIR_DEBUG statements in preparation for upcoming
patch which completely removes the expectation to report errors.
This effectively reverts commits dfc85658bd and f85a382a0e.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Implement method for loongarch to get host info, such as
cpu frequency, system info, etc.
Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Add loongarch cpu support, Define new cpu type 'loongarch64'
and implement it's driver functions.
Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
virProcessSetScheduler() uses not just sched_setscheduler() but
also sched_get_priority_{min,max}(). Currently we assume that
the former being available implies that the latter are as well,
but that's not the case for at least GNU/Hurd.
Make sure all functions are actually available before
attempting to use them.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Commit c07cf0a686 replaced this check with one for the
presence of cpu_set_t.
The idea at the time was that only sched_{get,set}affinity()
were visible by default, while making cpu_set_t visible required
defining _WITH_CPU_SET_T. So libvirt would detect the function
and attempt to use it, but the code would not compile because
the necessary data type had not been made accessible.
The commit in question brought three FreeBSD commits as evidence
of this. While [1] and [2] do indeed seem to support this
explanation, [3] from just a few days later made it so that not
just cpu_set_t, but also the functions, required user action to
be visible. This arguably would have made the change unnecessary.
However, [4] from roughly a month later changed things once
again: it completely removed _WITH_CPU_SET_T, making both the
functions and the data type visible by default.
This is the status quo that seems to have persisted until
today. If one were to check any recent FreeBSD build job
performed as part of our CI pipeline, for example [5] and [6]
for FreeBSD 13 and 14 respectively, they would be able to
confirm that in both cases cpu_set_t is detected as available.
Since there is no longer a difference between the availability
of the functions and that of the data type, go back to what we
had before.
This has the interesting side-effect of fixing a bug
introduced by the commit in question.
When detection was changed from the function to the data type,
most uses of WITH_SCHED_GETAFFINITY were replaced with uses of
WITH_DECL_CPU_SET_T, but not all of them: specifically, those
that decided whether qemuProcessInitCpuAffinity() would be
actually implemented or replaced with a no-op stub were not
updated, which means that we've been running the stub version
everywhere except on FreeBSD ever since.
The code has been copied to the Cloud Hypervisor driver in
the meantime, which is similarly affected. Now that we're
building the actual implementation, we need to add virnuma.h
to the includes.
As a nice bonus this also makes things work correctly on
GNU/Hurd, where cpu_set_t is available but
sched_{get,set}affinity() are non-working stubs.
[1] https://cgit.freebsd.org/src/commit/?id=160b4b922b6021848b6b48afc894d16b879b7af2
[2] https://cgit.freebsd.org/src/commit/?id=43736b71dd051212d5c55be9fa21c45993017fbb
[3] https://cgit.freebsd.org/src/commit/?id=90fa9705d5cd29cf11c5dc7319299788dec2546a
[4] https://cgit.freebsd.org/src/commit/?id=5e04571cf3cf4024be926976a6abf19626df30be
[5] https://gitlab.com/libvirt/libvirt/-/jobs/6266401204
[6] https://gitlab.com/libvirt/libvirt/-/jobs/6266401205
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
FreeBSD 14 implements sched_{get,set}affinity() for
compatibility with Linux, but we should still use the native
syscalls instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Depending on the situation, the IDs that we pass to these
functions can be either referring to processes or threads.
Linux doesn't have separate interfaces for one or the other,
but FreeBSD does and we're explicitly telling it that the ID
refers to a process. When it refers to a thread instead, the
call will fail, and the VM will not be able to start.
Luckily, another possible choice is CPU_WHICH_TIDPID, which
makes things behave the same as Linux.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
when the thread pool is dynamically expanded, threads should
not be created from the existing workers; they should be created
from the newly expanded workers
Signed-off-by: Wei Gong <gongwei833x@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Create a new structure holding type and attributes as these are
modifiable in a persistent mdev configuration and run out of sync with
the active mdev configuration.
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
VIR_CLOSE() sets errno on failure so it's better to use
virReportSystemError() than plain virReportError() as the former
reports errno value too.
Signed-off-by: Adam Julis <ajulis@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When checking for machined we do not really care whether systemd itself
is running, we just need machined to be either running or socket
activated by systemd. That is, exactly the same we do for logind.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
After previous cleanups, virSocketSendFD() is but a thin wrapper
over virSocketSendMsgWithFDs(). Replace the body of the former
with a call to the latter.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Instead of using strlen() to calculate length of payload we're
sending, let caller specify the size: they may want to send just
a portion of a buffer (even though the only current user
doesn't).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Currently, virSocketSendMsgWithFDs() reports two errors:
1) if CMSG_FIRSTHDR() fails,
2) if sendmsg() fails.
Well, the latter sets an errno, so caller can just use
virReportSystemError(). And the former - it is very unlikely to
fail because memory for whole control message was allocated just
a few lines above.
The motivation is to unify behavior of virSocketSendMsgWithFDs()
and virSocketSendFD() because the latter is just a subset of the
former (will be addressed later).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Inside of virsocket.c there is an include of poll.h and
PKT_TIMEOUT_MS macro definition. Neither of these is really
needed and in fact it's a leftover after I reworked one of
previously merged commits during review.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virSocketSendMsgWithFDs method send fds along with payload using
SCM_RIGHTS. virSocketRecv method polls, receives and sends the response
to callers.
These methods are required to add network suppport in ch driver.
Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The helper was used only in 'qemucapabilitiesnumbering' test which was
removed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Remove the wannabe error reporting via 'VIR_DEBUG/VIR_INFO' in favor of
proper errors.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The code abused 'VIR_INFO' as an attempt at error reporting. Rework the
code to return the usual 0/-1 and raise proper errors.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Rewrite the conditions after exiting the parser so that they are easier
to understand. This partially decreases the granularity of "error"
messages as they are not strictly necessary albeit for debugging.
As it was already observed in this code the logic itself often does
something else than the comment claims, thus the code logic is
preserved.
Changes:
- any case when not all data was processed is aggregated together and
gets a common "error" message
- absence of 'checksum' field is checked separately
- helper variables are removed as they are no longer needed
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use a 'switch' statement instead of a bunch of if/elseif statements.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The 'fieldFormat' variable is guaranteed to have only the proper enum
values by virPCIVPDResourceGetFieldValueFormat.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Merge the pre-checks with the 'switch' statement which is operating on
the same values to simplify further refactoring.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Replace VIR_INFO being used as form of error reporting with proper
virReportError and the usual return values.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Each caller was checking that the function read as many bytes as it
expected. Move the check inside virPCIVPDReadVPDBytes and make it report
a proper error rather than just a combination of VIR_DEBUG inside the
function and a random VIR_INFO in the caller.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
- fix passing of 'errno' to 'virReportSystemError'
The 'open' syscall returns '-1' and sets 'errno' on failure. The code
passed '-fd' as 'errno' rather than errno itself, thus always reporting
EPERM.
- don't overwrite errors when closing FD
Use VIR_AUTOCLOSE to avoid overwriting the errors from virPCIVPDParse.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
A checker function should not raise VIR_INFO or VIR_WARN messages
especially if they contain information useful only for debugging.
Turn the message into a VIR_DEBUG with universal meaning.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function always succeeded and after the removal of programing error
checks doesn't even have a 'return false' case. Additionally one of the
tests in 'virpcivpdtest' tested that this function never failed on wrong
data. Embrace this logic and remove the return value and adjust logging
to VIR_DEBUG level to avoid spamming logs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All callers satisfy these checks as they are just for programming
errors.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
None of the callers pass NULL, so the NULL check is pointless. Remove it
an remove the return value.
The function is exported only for use in 'virpcivpdtest' thus marking
the arguments as NONNULL is unnecessary.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use VIR_DEBUG instead of VIR_INFO as that's more appropriate and report
relevant information for debugging.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function is never called with NULL argument. Remove the check and
refactor the rest including the debug statement.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function does not reject '&', '<', '>' contrary to what it actually
states. Move and adjust the comment.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add a few debug statements to be able to trace lifetime of a
reserved/allocated port.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Since this tests inactive/config XML files rename it accordingly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
For machines that don't expose useful information through sysfs,
the dummy ID 0 is used.
https://issues.redhat.com/browse/RHEL-7043
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Rework the helper to use a GPtrArray structure to simplify callers.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
