Currently FreeBSD uses IPI based TLB flushing for remote
TLB flushing. Hyper-V allows hypercalls to flush local and
remote TLB. The use of Hyper-V hypercalls gives significant
performance improvement in TLB operations.
This patch set during test has shown near to 40 percent
TLB performance improvement.
Also this patch adds rep hypercall implementation as well.
Reviewed by: whu, kib
Tested by: whu
Authored-by: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Co-Authored-by: Erni Sri Satya Vennela <ernis@microsoft.com>
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D45521
Remove spurious ".Ar groupname".
Add missing full stops.
While there, tweak word order for better grammar.
MFC after: 3 days
Reviewed by: Alexander Ziaee, Mina Galić, allanjude, imp
Differential Revision: https://reviews.freebsd.org/D45092
The use of SYS_sigreturn is unnecessary here.
If handle_signal is called when a signal is delivered, it can just
return normally back to sigcode which will call sigreturn anyway.
In case handle_signal is called by check_deferred_signal, using
setcontext is better than SYS_sigreturn because that is the correct
system call to pair with the earlier getcontext.
Reviewed by: imp, kib
Differential Revision: https://reviews.freebsd.org/D44893
Abort the current test but keep running additional tests if OpenSSL
reports an error during a test. This matches the behavior for other
tests such as an error from OCF.
Reviewed by: markj
Sponsored by: AFRL, DARPA
Differential Revision: https://reviews.freebsd.org/D45279
from linux/kernel.h to match Linux and
allow direct linux/kstrtox.h inclusion.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45454
It returns absolute value of the difference between the arguments.
Add LinuxKPI version check as the macro was moved from drm-kmod to
linux/math.h in Linux kernel commit 46f12960aad (6.6 timeframe).
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz, emaste
Differential Revision: https://reviews.freebsd.org/D45453
To match Linux and allow direct linux/math.h inclusion.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45452
It returns the minimum that is not zero, except both equals to zero.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz, emaste, ssaxena
Differential Revision: https://reviews.freebsd.org/D45450
Differential Revision: https://reviews.freebsd.org/D45451
To match Linux and allow direct linux/minmax.h inclusion.
Sponsored by: Serenity Cyber Security, LLC
MFC after: 1 week
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D45449
This fixes some weird behavior triggered by nvidia-drm.ko: some DRM
cleanup functions will be called multiple times, leading to a double
free. drm_mode_config_cleanup will be called twice, causing ida_destroy
to be called twice. Although calling the cleanup twice doesn't seem
very clean, on Linux this seems to be permissable as it handles it
just fine. Not doing these checks causes mutex panics and double frees.
In order to preserve this behavior this change checks if the objects
have already been destroyed and bails if so. This fixes the panic seen
when unloading the nvidia-drm driver.
MFC after: 1 week
Reviewed by: bz, manu
Differential revision: https://reviews.freebsd.org/D44865
'cond' in WARN_ON need be bracketed,
otherwise it is wrong for multiple conditions.
Reviewed by: wulf
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D44604
Add probe points to allow us to probe when we add or remove multihome addresses.
Example use:
pf:sctp:multihome:add
{
printf("Add tag %x address %x", arg0,
((struct pf_sctp_source *)arg1)->addr.v4.s_addr);
}
pf:sctp:multihome:remove
{
printf("Remove tag %x address %x", arg0,
((struct pf_sctp_source *)arg2)->addr.v4.s_addr);
}
MFC after: 1 week
Sponsored by: Orange Business Services
Add a method rangeset_next to find the first range that starts at or
after a given value. Use it to rewrite pmap_pkru_same and
pmap_bti_same to avoid walking a page at a time over pages in no
range.
Reviewed by: andrew, kib
Differential Revision: https://reviews.freebsd.org/D45511
This reduces work done under vm_page_insert for large objects.
Reviewed by: alc, dougm, markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D45486
Use the new pctrie combined lookup/insert. This is an easy application
of the new facility. There are other places where we do this for pages
that may need more plumbing to use combined lookup/insert.
Reviewed by: kib (previous version), dougm, markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D45396
I/O errors should be reported; however lam currently does not
disambiguate between EOF because end-of-file was reached and EOF because
an I/O error occurred.
This commit changes lam to exit with EX_IOERR when an I/O error occurs.
Reviewed by: imp, allanjude
Sponsored by: Apple Inc.
Differential Revision: https://reviews.freebsd.org/D45437
* Document the "-d" option.
* Add the "-c" and "-r" options to the summary.
* Correct the list of required options.
* Clarify that the "-t" option is only for use with "-o", "-w", and "-W"
* Replace references to the nonexistent "-n" with "-p".
Also, fix a few related error strings in the ctladm command.
MFC after: 2 weeks
Sponsored by: Axcient
Reviewed by: jhb
Differential Revision: https://reviews.freebsd.org/D45503
If one of the files has ended, we won't show the column, but we still
need to drain the file pointer to avoid potentially hitting a pipe
failure.
This commit moves the NULL offset checks inside show() so that getline()
and ferror() are still called on fp.
Reviewed by: allanjude
Sponsored by: Apple Inc.
Differential Revision: https://reviews.freebsd.org/D45440
UNIX conformance wants utilities to catch any errors when doing I/O, as
opposed to relying on the implicit flush upon exit.
comm currently does not do that.
This commit adds handling of I/O errors on stdout prior to exit.
Reviewed by: imp, allanjude
Sponsored by: Apple Inc.
Differential Revision: https://reviews.freebsd.org/D45439
Tags in $10 (filter_opts) are not guaranteed to be the maximum possible
tag length, so memcpy() can end up reading outside of the allocated
buffer.
Use strlcpy() instead.
Reported by: CheriBSD
Event: Kitchener-Waterloo Hackathon 202406
Use the v4/v6 union members rather than the uint32_t ones.
Export IN_ARE_MASKED_ADDR_EQUAL() in in_var.h and use it (and its IPv6
equivalent) for masked comparisons rather than hand-rolled code.
Event: Kitchener-Waterloo Hackathon 202406
These take struct ifreq and struct in6_ifreq respectively. Passing struct
in_aliasreq or struct in6_aliasreq means we're supplying a shorter object than
expected. While this doesn't actively break things on most architectures other
than CHERI it is still wrong.
Reported by: CheriBSD
Event: Kitchener-Waterloo Hackathon 202406
It casts in_addr to pf_addr, which is smaller, so this isn't quite right.
Replace it with a function that will only read the actual address.
Reported by: CheriBSD
Event: Kitchener-Waterloo Hackathon 202406
Firmware advertises the transfer lenght for writesame commands to driver during init.
So for any writesame IOs with ndob and unmap bit set and transfer lengh is greater
than the max write same length specified by the firmware, then direct those commands
to firmware instead of hardware otherwise hardware will break.
Reviewed by: imp
Approved by: imp
Differential revision: https://reviews.freebsd.org/D44452
The driver is modified to add FreeBSD OS type in the upper nibble of the
fault/reset reason code for appropriate qualification of the reason code.
Reviewed by: imp
Approved by: imp
Differential revision: https://reviews.freebsd.org/D44427
Accept any fault as successful for diagnostic fault reset, not just the 0xF000
code. print fault information and return.
Reviewed by: imp
Approved by: imp
Differential revision: https://reviews.freebsd.org/D44426
Instead of updating the ConsumerIndex of the Admin and Operational ReplyQueues
after processing all replies in the queue, it will now be periodically updated
after processing every 100 replies.
Reviewed by: imp
Approved by: imp
Differential revision: https://reviews.freebsd.org/D44425
Post controller reset, If any device removal events arrive, and if
there are any outstanding IOs then the driver will unnecessarily wait
in the loop for 30 seconds before removing the device from the OS.
reset target outstanding IO counter and controller outstanding IO counter
and remove the redundant wait loop.
Reviewed by: imp
Approved by: imp
Differential revision: https://reviews.freebsd.org/D44424
An outstanding IO counter per target check has been added before deleting
the target from the OS which will poll the reply queue if there are any
outstanding IOs are found.
A new flag, named "MPI3MR_DEV_REMOVE_HS_COMPLETED," is added. If a remove event
for a target occurs and before the deletion of the target resource if the add event
for another target arrives reusing the same target ID then this flag will prevent
the removal of the target reference. This flag ensures synchronization between the interrupt
top and bottom half during target removal and addition events.
Reviewed by: imp
Approved by: imp
Differential revision: https://reviews.freebsd.org/D44423
The driver removes the drive from the OS if firmware sends 'device added'
event with hidden bit or inaccessible status.
Reviewed by: imp
Approved by: imp
Differential revision: https://reviews.freebsd.org/D44421
A previous commit aligned the start of the data area to a multiple of
the VM page size, in order to prevent extra buffers to be allocated
(which failed for 64 KB cluster size without this alignment).
Since a dependency on PAGE_SIZE caused compatibility issues, the
alignment was made conditional on this macro being defined, in the
previous commit. This lead to different behavior of this program
when built on FreeBSD vs. Linux (which does not define PAGE_SIZE).
This commit removes any use of PAGE_SIZE and instead always aligns
the start of the data area to a multiple of the cluster size.
The -A option is now implied, unless overridden by a specific number
of reserved sectors with the -r option.
Approved by: kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D45436
Before this patch, a stack (tfb) accepts a tcpcb (tp), if the
tp->t_state is TCPS_CLOSED or tfb->tfb_tcp_handoff_ok is not NULL
and tfb->tfb_tcp_handoff_ok(tp) returns 0.
After this patch, the only check is tfb->tfb_tcp_handoff_ok(tp)
returns 0. tfb->tfb_tcp_handoff_ok must always be provided.
For existing TCP stacks (FreeBSD, RACK and BBR) there is no
functional change. However, the logic is simpler.
Reviewed by: lstewart, peter_lei_ieee_.org, rrs
MFC after: 1 week
Sponsored by: Netflix, Inc.
Differential Revision: https://reviews.freebsd.org/D45253
Use the new pctrie combined insert/lookup facility to reduce work and
time under the bufobj interlock when associating a buf with a vnode.
We now do one lookup in the dirty tree and one combined lookup/insert in
the clean tree instead of one lookup in dirty, two in clean, and then an
insert in clean. We also avoid touching the possibly unrelated buf at
the tail of the queue.
Also correct an issue where the actual order of the tail queue depended
on the insertion order due to sign issues.
Reviewed by: kib (previous version), dougm, markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D45395
