Allow the calculation of the mu adjustment factor to underflow instead of
rejecting the VOI sample from the digest and logging an error. This trades off
some (currently unquantified) additional centroid error in exchange for better
fidelity of the distribution's density, which is the right trade off at the
moment until follow up work to better handle and track accumulated error can be
undertaken.
Obtained from: Netflix
MFC after: immediately
Test individual sizes up to the max encryption block length as well as
a few sizes that include 1 full block and a partial block before
doubling the size.
Reviewed by: cem, markj
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D29518
The loops for Chacha20 and Chacha20+Poly1305 which encrypted/decrypted
full blocks of data used the minimum of the input and output segment
lengths to determine the size of the next chunk ('todo') to pass to
Chacha20_ctr32(). However, the input and output segments could extend
past the end of the ciphertext region into the tag (e.g. if a "plain"
single mbuf contained an entire TLS record). If the length of the tag
plus the length of the last partial block together were at least as
large as a full Chacha20 block (64 bytes), then an extra block was
encrypted/decrypted overlapping with the tag. Fix this by also
capping the amount of data to encrypt/decrypt by the amount of
remaining data in the ciphertext region ('resid').
Reported by: gallatin
Reviewed by: cem, gallatin, markj
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D29517
Commit fdc9b2d50f replaced a couple of while loops with LIST_FOREACH()
loops. This patch factors the body of that loop out into a separate
function called nfscl_checkown().
This prepares the code for future changes to use a hash table of
lists for open searches via file handle.
This patch should not result in a semantics change.
MFC after: 2 weeks
An NFSv4 only configuration does not register with
rpcbind(). Without this patch a failure to rpcb_unset()
is reported when the daemon is terminated for this case.
This is harmless noise, but this patch avoids calling
rpcb_unset() for the NFSv4 only case, avoiding the noise.
When called with "-d", it still does the rpcb_unset(),
assuming that the configuration might have been
changed to NFSv4 only and unregistering with
rpcbind() might still be needed.
Reviewed by: freqlabs
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D29449
There is no change in the source of the stats (t4_get_port_stats or
t4_get_vi_stats) but the per-port callout is gone.
Sponsored by: Chelsio Communications
Reviewed by: jhb@
Differential Revision: https://reviews.freebsd.org/D29527
ULE uses this topology to try and preserve locality when migrating
threads between CPUs and when performing work stealing. Ensure that on
NUMA systems it will at least take the NUMA topology into account.
Reviewed by: bdragon, jhibbits (previous version)
Tested by: bdragon
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D28580
- Always use distinct sockets for send and recv
- Limit rights on the recv socket
For ICMP6 we were using the same socket for both send and receive, and
we limited rights on the socket such that it's impossible to receive
anything.
PR: 254623
Diagnosed by: Zhenlei Huang <zlei.huang@gmail.com>
Reviewed by: oshogbo
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D29523
Provide a histogram output to check, if the hashsize or
bucketlimit could be optimized. Also add some basic sanity
checks around the accounting of the hash utilization.
MFC after: 2 weeks
Reviewed By: tuexen, #transport
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D29506
As accessing the tcp hostcache happens frequently on some
classes of servers, it was recommended to use atomic_add/subtract
rather than (per-CPU distributed) counters, which have to be
summed up at high cost to cache efficiency.
PR: 254333
MFC after: 2 weeks
Sponsored by: NetApp, Inc.
Reviewed By: #transport, tuexen, jtl
Differential Revision: https://reviews.freebsd.org/D29522
This fixes double IVHD_SETUP_INTR calls on the same IOMMU device.
Sponsored by: The FreeBSD Foundation
MFC with: 74ada297e8
Reported by: Oleg Ginzburg <olevole@olevole.ru>
Reviewed by: grehan
Approved by: philip (mentor)
Differential Revision: https://reviews.freebsd.org/D29521
Add a dummy vendor menu entry on the main welcome menu. Vendors can override
this in their local.lua file to create whatever sub-menu they need for their
products.
Also fix the adding a 'welcome' entry as well based on a suggestion from Kyle.
Silly option menu code also from Kyle. They seem to work for me, but any
transcription error is likely mine.
Reviewed by: kevans@ (the vendor stuff)
rttrash (unused but not yet delete entries) were eliminated
during routing rework. Remove reading these symbols from the kernel.
PR: 254681
Reported by: rashey@superbox.pl
MFC after: immediately
This only works on single-CPU G4 systems, and more work is needed for
dual-CPU systems. That said, platform sleep does not work, and this is
currently only used for PMU-based CPU speed change.
The elimination of the platform_smp_timebase_sync() call is so that the
timebase sync rendezvous can be enhanced to perform better
synchronization, which requires a full rendezvous. This would be
impossible to do on this single-threaded run.
Rename cpu_sleep() to mpc745x_sleep() to denote what it's actually
intended for. This function is very G4-specific, and will not work on
any other CPU. This will afterward eliminate a
platform_smp_timebase_sync() call by directly updating the timebase
instead.
Addressing the underlying root cause for cache_count to
show unexpectedly high values, by protecting all arithmetic on
that global variable by using counter(9).
PR: 254333
Reviewed By: tuexen, #transport
MFC after: 2 weeks
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D29510
This fixes a panic due to stale so->so_proto if t4_tom is unloaded and
one or more connections that were previously offloaded are still around
in TIME_WAIT state.
Reviewed by: jhb@
MFC after: 1 week
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D29503
Explicitly drain the sbuf after completing each hash bucket
to minimize the work performed while holding the hash
bucket lock.
PR: 254333
MFC after: 2 weeks
Reviewed By: tuexen, jhb, #transport
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D29483
While exporting large amounts of data to a sysctl
request, datastructures may need to be locked.
Exporting the sbuf_drain function allows the
coordination between drain events and held
locks, to avoid stalls.
PR: 254333
Reviewed By: jhb
MFC after: 2 weeks
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D29481
Otherwise it breaks when offloading like checksum or TSO are used,
because second (encapsulated) ip_output() processing passes fragments of
the encapsulated packet down to the hardware interface.
Diagnosed by: hselasky
Reviewed by: np
Sponsored by: Nvidia Networking / Mellanox Technologies
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D29501
In some settings offload might calculate hash from decapsulated packet.
Reserve a bit in packet header rsstype to indicate that.
Add m_adj_decap() that acts similarly to m_adj, but also either clear
flowid if it is not marked as inner, or transfer it to the decapsulated
header, clearing inner indicator. It depends on the internals of m_adj()
that reuses the argument packet header for the result.
Use m_adj_decap() for decapsulating vxlan(4) and gif(4) input packets.
Reviewed by: ae, hselasky, np
Sponsored by: Nvidia Networking / Mellanox Technologies
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D28773
'ps' is not a word - rather, it is a utility with its own manual page.
As every other utility referenced in the file has it, append the
relevant manual section that ps(1) can be found in.
While here, also wordsmith a sentence to avoid awkward phrasing, and fix
a typo.
Pointy hat to: me
Reported by: danfe, brueffer, maxim
The POWER7 subword atomics were not using the correct instructions for
byte and halfword stores in the atomic_fcmpset code.
This only affects builds with custom CFLAGS that have explicitly enabled
ISA_206_ATOMICS.
--Eliminate a big ifdef that encompassed all currently-supported
architectures except mips and powerpc32. This applied to the case
in which we've allocated a superpage but the pager-populated range
is insufficient for a superpage mapping. For platforms that don't
support superpages the check should be inexpensive as we shouldn't
get a superpage in the first place. Make the normal-page fallback
logic identical for all platforms and provide a simple implementation
of pmap_ps_enabled() for MIPS and Book-E/AIM32 powerpc.
--Apply the logic for handling pmap_enter() failure if a superpage
mapping can't be supported due to additional protection policy.
Use KERN_PROTECTION_FAILURE instead of KERN_FAILURE for this case,
and note Intel PKU on amd64 as the first example of such protection
policy.
Reviewed by: kib, markj, bdragon
Differential Revision: https://reviews.freebsd.org/D29439
ipi_msg_count is inaccessible outside this file and is never read.
It was introduced in the original SMP support code in r178628 and was never
actually used anywhere.
Remove it to slightly improve IPI performance.
Submitted by: jhibbits
MFC after: 1 week
The NFSv4.1 (and 4.2 on 13) server incorrectly binds
a new TCP connection to the back channel when first
used by an RPC with a Sequence op in it (almost all of them).
RFC5661 specifies that only the fore channel should be bound.
This was done because early clients (including FreeBSD)
did not do the required BindConnectionToSession RPC.
Unfortunately, this breaks the Linux client when the
"nconnects" mount option is used, since the server
may do a callback on the incorrect TCP connection.
This patch converts the server behaviour to that
required by the RFC. It also makes the server test/indicate
failure of the back channel more aggressively.
Until this patch is applied to the server, the
"nconnects" mount option is not recommended for a Linux
NFSv4.1/4.2 client mount to the FreeBSD server.
Reported by: bcodding@redhat.com
Tested by: bcodding@redhat.com
PR: 254560
MFC after: 1 week
In emacs mode, force ^R to backware search the history
This behaviour is the default in emacs mode for most of the other shells
Note: Note that this can still be overridden via $EDITRC, ~/.editrc or a
bind command after set -o emacs.
MFC after: 1 week
Approved by: jilles
Reviewed by: jilles, arichardson, pstef
Differential Revision: https://reviews.freebsd.org/D29494
Now that superpages for HPT MMU has landed, finish implementation of
pmap_mincore by adding support for superpages.
Submitted by: Fernando Eckhardt Valle <fernando.valle@eldorado.org.br>
Reviewed by: bdragon, luporl
MFC after: 1 week
Sponsored by: Eldorado Research Institute (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D29230
This is required for small CCBs support, where we need to track
whether the CCB was allocated from an UMA zone or not. There are
no (intended) functional changes with the current source.
Reviewed By: imp
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D29484
The RCS IDs have been retired as of the move to git, so on 14-CURRENT
and 13.0-STABLE this fortune returns the following.
This fortune brought to you by:
$FreeBSD$
While faintly amusing the first time, this might just cause confusion
for folks, and in addition it's not the most useful of tips, so doesn't
add much.
Therefore it seems prudent to get rid of it.
MFC: Not to 11-STABLE or 12-STABLE.
