Emmanuel Vadot [Wed, 1 Dec 2021 15:13:09 +0000 (16:13 +0100)]
fb: Add new FBTYPE_EFIFB
Currently the type isn't set in the fbtype struct so any userland
program that call the FBIOGTYPE ioctl will think it's a FBTYPE_SUN1BW
which is far from the truth.
No app that I found find checks the type but at least now it's correct.
Emmanuel Vadot [Wed, 1 Dec 2021 10:57:42 +0000 (11:57 +0100)]
fb: Remove some unused ioctls
6d1699583d7e added the FBIOGXINFO,FBIOMONINFO and FBIOPUTCMAPI/FBIOGETCMAPI
ioctls and said that implementation in driver will come later.
Since it was in 2001 I think we can remove this.
Emmanuel Vadot [Wed, 1 Dec 2021 10:53:03 +0000 (11:53 +0100)]
fb: Remove unused FBIOVERTICAL ioctl
Commit 6d1699583d7e added the FBIOVERTICAL ioctl and said that implementation
in driver will come later.
Since it was in 2001 I think we can remove this.
Andriy Gapon [Mon, 6 Dec 2021 07:59:28 +0000 (09:59 +0200)]
vmxnet3: skip zero-length descriptor in the middle of a packet
Passing up such descriptors to iflib is obviously wasteful.
But the main conern is that we may overrun iri_frags array because of
them. That's been observed in practice.
Also, assert that the number of fragments / descriptors / segments is
less than IFLIB_MAX_RX_SEGS.
Andreas Wetzel [Mon, 6 Dec 2021 07:21:38 +0000 (09:21 +0200)]
rtwn/usb: add product ID for Asus USB N10 Nano Rev. B1
According to information found on the internet the following products
use exactly the same hardware but probably different USB IDs:
- Edimax EW-7811Un V2 (v2)
- Edimax EW-7811GLN 2.0A (v2)
I am not adding them as I cannot verify.
Warner Losh [Mon, 6 Dec 2021 05:57:50 +0000 (22:57 -0700)]
cam/iosched: fix off by one error
Set the bucket size to be SBT_1US/50000 + 1 to be the first number >
20us. I had this uncommitted in my three when I pushed 2283206935b8
since kern.cam.iosched.bucket_base_us was reporting 19us.
Warner Losh [Mon, 6 Dec 2021 04:54:42 +0000 (21:54 -0700)]
cam-iosched: Publish parameters of the latency buckets
Add sysctls to publish the latency bucket size, number, and stride. Move
to putting all the iosched stuff under kern.cam.iosched as well and move
kern.cam.do_dynamic_iosched to kern.cam.iosched.dynamic. In addition, move
kern.cam.io_sched_alpha_bits to kern.cam.iosched.alpha_bits. Publish
kern.cam.iosched.bucket_base (the smallest bucket time), .bucket_ratio
(the geometric progression factor * 100), and .buckets (the total number
of buckets).
Move to publishing 20 buckets, starting at 20us. This allows us to get
better resolution on the short end and detect preformance degredation of
the NVMe drives I've tested on, even with the uncertainty of bucketing.
Alan Cox [Sun, 5 Dec 2021 23:40:53 +0000 (17:40 -0600)]
amd64/pmap: fix user page table page accounting
When a superpage mapping is destroyed and the original page table page
containing 4KB mappings that was being held in reserve is deallocated,
the recently introduced user page table page count was not being
decremented. Consequentially, the count was wrong and would grow over
time. For example, after multiple iterations of "buildworld", I was
seeing implausible counts, like the following:
Stefan Eßer [Sun, 5 Dec 2021 21:27:33 +0000 (22:27 +0100)]
sys/bitset.h: reduce visibility of BIT_* macros
Add two underscore characters "__" to names of BIT_* and BITSET_*
macros to move them to the implementation name space and to prevent
a name space pollution due to BIT_* macros in 3rd party programs with
conflicting parameter signatures.
These prefixed macro names are used in kernel header files to define
macros in e.g. sched.h, sys/cpuset.h and sys/domainset.h.
If C programs are built with either -D_KERNEL (automatically passed
when building a kernel or kernel modules) or -D_WANT_FREENBSD_BITSET
(or this macros is defined in the source code before including the
bitset macros), then all macros are made visible with their previous
names, too. E.g., both __BIT_SET() and BIT_SET() are visible with
either of _KERNEL or _WANT_FREEBSD_BITSET defined.
The main reason for this change is that some 3rd party sources
including sched.h have been found to contain conflicting BIT_*
macros.
As a work-around, parts of shed.h have been made conditional and
depend on _WITH_CPU_SET_T being set when sched.h is included.
Ports that expect the full functionality provided by sched.h need
to be built with -D_WITH_CPU_SET_T. But this leads to conflicts if
BIT_* macros are defined in that program, too.
This patch set makes all of sched.h visible again without this
parameter being passed and without any name space pollution due
to BIT_* macros becoming visible when sched.h is included.
This patch set will be backported to the STABLE branches, but ports
will need to use -D_WITH_CPU_SET_T as long as there are supported
releases that do not contain these patches.
Gleb Smirnoff [Sun, 5 Dec 2021 16:47:24 +0000 (08:47 -0800)]
in_pcb: delay crfree() down into UMA dtor
inpcb lookups, which check inp_cred, work with pcbs that potentially went
through in_pcbfree(). So inp_cred should stay valid until SMR guarantees
its invisibility to lookups.
While here, put the whole inpcb destruction sequence of in_pcbfree(),
inpcb_dtor() and inpcb_fini() sequentially.
Dimitry Andric [Sun, 5 Dec 2021 17:54:13 +0000 (18:54 +0100)]
Apply fix for clang crashing on invalid -Wa,-march= values
Merge commit df08b2fe8b35 from llvm git (by Dimitry Andric):
[AArch64] Avoid crashing on invalid -Wa,-march= values
As reported in https://bugs.freebsd.org/260078, the gnutls Makefiles
pass -Wa,-march=all to compile a number of assembly files. Clang does
not support this -march value, but because of a mistake in handling
the arguments, an unitialized Arg pointer is dereferenced, which can
cause a segfault.
Work around this by adding a check if the local WaMArch variable is
initialized, and if so, using its value in the diagnostic message.
Mark Johnston [Sun, 5 Dec 2021 15:45:12 +0000 (10:45 -0500)]
ng_ubt: Avoid attaching to several newer Intel controllers
Like other Intel controllers, these require firmware to be loaded, and
generic ng_ubt attach causes them to lock up until a power cycle.
However, their firmware interface for querying version info and loading
operational firmware is different from that implemented by ng_ubt_intel
and iwmbtfw, so they are not usable yet. Just disable attach for now to
avoid stalls during USB device enumeration.
PR: 260161
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Mitchell Horne [Sun, 5 Dec 2021 15:11:55 +0000 (11:11 -0400)]
x86: remove unused T_USER flag
It stopped being used in 3c256f5395aa, when trap() was reorganized to
have separate switch statements for user and kernel traps. Remove the
two leftover references and the flag itself.
Reviewed by: kib
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D33253
Rick Macklem [Sat, 4 Dec 2021 22:38:55 +0000 (14:38 -0800)]
nfsd: Fix Verify for attributes like FilesAvail
When the Verify operation calls nfsv4_loadattr(), it provides
the "struct statfs" information that can be used for doing a
compare for FilesAvail, FilesFree, FilesTotal, SpaceAvail,
SpaceFree and SpaceTotal. However, the code erroneously
used the "struct nfsstatfs *" argument that is NULL.
This patch fixes these cases to use the correct argument
structure. For the case of FilesAvail, the code in
nfsv4_fillattr() was factored out into a separate function
called nfsv4_filesavail(), so that it can be called from
nfsv4_loadattr() as well as nfsv4_fillattr().
In fact, most of the code in nfsv4_filesavail() is old
OpenBSD code that does not build/run on FreeBSD, but I
left it in place, in case it is of some use someday.
I am not aware of any extant NFSv4 client that does Verify
on these attributes.
swapoff(2): replace special device name argument with a structure
For compatibility, add a placeholder pointer to the start of the
added struct swapoff_new_args, and use it to distinguish old vs. new
style of syscall invocation.
Reviewed by: markj
Discussed with: alc
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D33165
Florian Walpen [Sat, 4 Dec 2021 16:17:29 +0000 (18:17 +0200)]
MAC/priority module for realtime privilege group
This is a MAC policy module that grants scheduling privileges based on
group membership. Users or processes in the group realtime (gid 47) are
allowed to run threads and processes with realtime scheduling priority.
For timing-sensitive, low-latency software like audio/jack, running with
realtime priority helps to avoid stutter and gaps.
Gleb Smirnoff [Sat, 4 Dec 2021 18:05:46 +0000 (10:05 -0800)]
nhop: hash ifnet pointer instead of if_index
Yet another problem created by VIMAGE/if_vmove/epair design that
relocates ifnet between vnets and changes if_index. Since if_index
changes, nhop hash values also changes, unlink_nhop() isn't able to
find entry in hash and leaks the nhop. Since nhop references ifnet,
the latter is also leaked. As result running network tests leaks
memory on every single test that creates vnet jail.
While here, rewrite whole hash_priv() to use static initializer,
per Alexander's suggestion.
Michael Tuexen [Sat, 4 Dec 2021 14:00:05 +0000 (15:00 +0100)]
tcpdrop: allow TCP connections to be filtered by cc-algo
In addition to filtering by stack and state, allow filtering
by the congestion control module used. Choose the command line
options to be consistent with the ones of sockstat.
Cy Schubert [Wed, 20 Oct 2021 03:11:40 +0000 (20:11 -0700)]
ipfilter: Avoid more null if-then-else blocks
As in 73db3b64f167, when WITHOUT_INET6 is selected, null if-then-else
blocks are generated because #if statements are incorrectly placed.
Moving the #if statements reduces unnecessary runtime comparisons or
compiler optimizations.
Cy Schubert [Tue, 5 Oct 2021 04:26:58 +0000 (21:26 -0700)]
ipfilter: Add DTrace SDT probe
Add an SDT probe, using the newly created DT5 macro, in similar vein
to DEBUG_PARSE printf for when FTP junk is anticipated and ok. This
will assist in debugging port (active) FTP proxy issues.
Kristof Provost [Thu, 2 Dec 2021 07:22:34 +0000 (08:22 +0100)]
if_pflog: fix packet length
There were two issues with the new pflog packet length.
The first is that the length is expected to be a multiple of
sizeof(long), but we'd assumed it had to be a multiple of
sizeof(uint32_t).
The second is that there's some broken software out there (such as
Wireshark) that makes incorrect assumptions about the amount of padding.
That is, Wireshark assumes there's always three bytes of padding, rather
than however much is needed to get to a multiple of sizeof(long).
Fix this by adding extra padding, and a fake field to maintain
Wireshark's assumption.
Robert Wing [Fri, 3 Dec 2021 23:22:23 +0000 (14:22 -0900)]
ipsec: fix a panic with INVARIANTS
When adding an SPD entry that already exists, a refcount wraparound
panic is encountered. This was caused from dropping a reference on the
wrong security policy.
Fixes: 4920e38fecc3 ("ipsec: fix race condition in key.c")
Reviewed by: wma
Sponsored by: Klara Inc.
Differential Revision: https://reviews.freebsd.org/D33100
Peter Lei [Fri, 3 Dec 2021 20:38:12 +0000 (12:38 -0800)]
in_pcb: limit the effect of wraparound in TCP random port allocation check
The check to see if TCP port allocation should change from random to
sequential port allocation mode may incorrectly cause a false positive
due to negative wraparound.
Example:
V_ipport_tcpallocs = 2147483585 (0x7fffffc1)
V_ipport_tcplastcount = 2147483553 (0x7fffffa1)
V_ipport_randomcps = 100
The original code would compare (2147483585 <= -2147483643) and thus
incorrectly move to sequential allocation mode.
Compute the delta first before comparing against the desired limit to
limit the wraparound effect (since tcplastcount is always a snapshot
of a previous tcpallocs).
Michael Tuexen [Fri, 3 Dec 2021 20:28:47 +0000 (21:28 +0100)]
sctp: use the correct traffic class when sending SCTP/IPv6 packets
When sending packets the stcb was used to access the inp and then
access the endpoint specific IPv6 level options. This fails when
there exists an inp, but no stcb yet. This is the case for sending
an INIT-ACK in response to an INIT when no association already
exists. Fix this by just providing the inp instead of the stcb.
Peter Lei [Fri, 3 Dec 2021 20:30:21 +0000 (12:30 -0800)]
in_pcb: fix TCP local ephemeral port accounting
Fix logic error causing UDP(-Lite) local ephemeral port bindings
to count against the TCP allocation counter, potentially causing
TCP to go from random to sequential port allocation mode prematurely.
Chuck Silvers [Fri, 3 Dec 2021 19:03:32 +0000 (11:03 -0800)]
librtld_db: Handle shlibs with discontiguous mappings.
Some shared libraries specify mappings that leave a gap (actually a
MAP_GUARD mapping) in between the file mappings (libcrypto.so was
the one I found), and this would cause rd_loadobj_iter() to report
the mapping info incorrectly, leaving out rdl_path and misreporting
rdl_offset for file mappings after the gap. Fix rd_loadobj_iter()
to handle this situation.
Gleb Smirnoff [Fri, 3 Dec 2021 16:57:23 +0000 (08:57 -0800)]
ng_l2tp: use callout_reset() instead of ng_callout()
The previous commit to this node falsely stated that locked callouts
are compatible with netgraph ng_callout KPI. They are not. An item
can be queued instead of being applied to the node, which results in
a mutex leak to the callout thread and later unlocked call into function
that expects to be called locked.
Potentially netgraph can be taught to handle locked callouts, but that
would bring a lot of complexity in it. Instead lets question necessity
of ng_callout() instead of callout_reset(). It protects against node
going away while callout is scheduled. But a node that drains all
callouts in the shutdown method (ng_l2tp does) is already protected.
Alexander Motin [Thu, 2 Dec 2021 23:01:02 +0000 (18:01 -0500)]
APEI: Improve multiple error sources handling.
Some AMD systems I have report 8 NMI and 3591 polled error sources.
Previous code could handle only one NMI source and used separate
callout for each polled source. New code can handle multiple NMIs
and groups polled sources by power of 2 of the polling period.
procstat_getfiles_sysctl: do not require non-null ki_fd
ki_fd is legitimately NULL when 32bit process requests process data
from 64bit host kernel. The field is not used by the code for sysctl
case; procstat_getfiles_kvm() checks ki_fd.
PR: 260174
Reported by: Damjan Jovanovic <damjan.jov@gmail.com>
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Warner Losh [Thu, 2 Dec 2021 20:53:44 +0000 (13:53 -0700)]
mps(4): Fix unmatched devq release.
Port 9781c28c6d63 and a8837c77efd0 to the mps driver. Before this
change devq was frozen only if some command was sent to the target after
reset started, but release was called always. This change freezes the
devq immediately, leaving mprsas_action_scsiio() check only to cover
race condition due to different lock devq use.
This should also avoid unnecessary requeue of the commands, creating
additional log noise and confusing some broken apps. It also avoids a
'busy' requeue of I/Os failing when we're doing recovery that takes
longer than the normal busy timeout. These I/Os failing can lead to
filesystems being unmounted in the force unmount case for I/O errors.
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