Commit Graph

268330 Commits

Author SHA1 Message Date
Oscar Zhao
49b76286b6 support thread migration and refactor kqdom locks 2021-05-21 14:38:08 -04:00
Oscar Zhao
0aa6e4d988 add last_nkev 2020-05-20 04:25:02 -04:00
Oscar Zhao
2e383660dd add kn_proc_count to best of two 2020-05-20 04:11:34 -04:00
Oscar Zhao
3ce2173be6 add cap to workstealing controlled by sysctl and its stat dumps 2020-05-09 20:52:39 -04:00
Oscar Zhao
96330609b7 1. get rid of the usage of next_kn in kqueue_scan. The latter is hell to maintain and lead to countless bugs.
2. slightly reduce lock contention in the knote_drop path.
2020-05-06 03:42:29 -04:00
Oscar Zhao
61067bc214 release processing KN only when kq_scan has >0 max events. Because calling kevent with =0 max events doesn't mean all events are processed. This results in a subtle race of pre-releasing unprocessed knotes. 2020-05-05 04:14:30 -04:00
Charlie Root
d535232e92 fix workstealing > 1 and possible divide by 0 2020-05-05 01:22:57 -04:00
Oscar Zhao
29df71b972 merge with head 2020-04-30 02:15:26 -04:00
kevans
04816a15fb loader.conf(5): document that loader_conf_files may be clobbered
A future change in lualoader may take some liberties with the
loader_conf_files in the name of efficiency; namely, it may start omitting
it from the loader environment entirely so that it doesn't need to worry
about maintaining any specific value.

This variable has historically been incredibly volatile anyways, as it may
get set to completely different values in any given configuration file to
trigger a load of more files.

Document now that we may not maintain it in the future, but perhaps we'll
reserve the right to change our minds and eventually formally export all of
the loader configuration files that were read using this variable.

MFC after:	3 days
2020-04-30 02:50:58 +00:00
imp
b8ce7e8464 Make sure that we get the sbuf resources we need.
Since we're calling sbuf_new with NOWAIT, make sure it can allocate a
buffer to use. Don't print anything if we can't get it.

Noticed by: rpokala
2020-04-30 00:43:11 +00:00
imp
1c63fddbd7 Implement the NVME_GET_NSID and NVME_PASSTHROUGH_CMD ioctls
With these two ioctls implemented in the nda driver, nvmecontrol now
works with nda just like it does with nvd. It eliminates the need to
jump through odd hoops to get this data.
2020-04-30 00:43:07 +00:00
imp
18a1b03238 Return the nvmeX device associated with the ndaX device.
Add the nvmeX device to the XPT_PATH_INQ nvme specific
information. while one could figure this out by looking up the
domain🚌slot:function, it's a lot easier to have the SIM set it
directly since the sim knows this.
2020-04-30 00:43:02 +00:00
imp
07ca42c0db Generate a devctl event for interesting events
When we reset the controller, and when the controller tells us about a
critical warning, send an event.
2020-04-30 00:27:19 +00:00
emaste
cb7cc22b5a src.conf.5: regen after 359736, ZONEINFO_OLD_TIMEZONES_SUPPORT removal 2020-04-30 00:14:14 +00:00
rscheff
9ff3e71cd0 Prevent premature shrinking of the scaled receive window
which can cause a TCP client to use invalid or stale TCP sequence numbers for ACK packets.

Packets with old sequence numbers are ignored and not used to update the send window size.
This might cause the TCP session to hang indefinitely under some circumstances.

Reported by:	Cui Cheng
Reviewed by:	tuexen (mentor), rgrimes (mentor)
Approved by:	tuexen (mentor), rgrimes (mentor)
MFC after:	3 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D24515
2020-04-29 22:01:33 +00:00
melifaro
57588206fe Convert more rtentry field accesses into nhop fields accesses.
Continue routing subsystem conversion to nhop objects defined in r359823.
Use fields from nhop structure instead of "struct rtentry" fields.
This is one of the last changes prior to removing rt_ifp, rt_ifa,
 rt_gateway and rt_mtu from struct rtentry.

Differential Revision:	https://reviews.freebsd.org/D24609
2020-04-29 21:54:09 +00:00
rscheff
f8d5656acd Correctly set up the initial TCP congestion window in all cases,
by not including the SYN bit sequence space in cwnd related calculations.
Snd_und is adjusted explicitly in all cases, outside the cwnd update, instead.

This fixes an off-by-one conformance issue with regular TCP sessions not
using Appropriate Byte Counting (RFC3465), sending one more packet during
the initial window than expected.

PR:		235256
Reviewed by:	tuexen (mentor), rgrimes (mentor)
Approved by:	tuexen (mentor), rgrimes (mentor)
MFC after:	3 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D19000
2020-04-29 21:48:52 +00:00
bdrewery
bb85a467ce dtrace tests: Support globbing for excludes
Downstream this makes skipping tests like common/ip/tst.*sctp*.ksh simpler.

Reviewed by:	vangyzen, cem, markj
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D24608
2020-04-29 21:12:32 +00:00
melifaro
2338a28d9e Add nhop to the ifa_rtrequest() callback.
With the upcoming multipath changes described in D24141,
 rt->rt_nhop can potentially point to a nexthop group instead of
 an individual nhop.
To simplify caller handling of such cases, change ifa_rtrequest() callback
 to pass changed nhop directly.

Differential Revision:	https://reviews.freebsd.org/D24604
2020-04-29 19:28:56 +00:00
mmel
c24a037915 Move ARM specific flags to arm/Makefile.inc
Requested by:	kib
MFC with:	r360463
2020-04-29 16:05:50 +00:00
mmel
dd3a1b93be Fix style(9). Strip write only variables.
Not a functional change.

MFC after:	1 week
2020-04-29 14:36:50 +00:00
mmel
8dfd2d1457 Export tracing facility of GIC500 ITS block.
Possibility of tracing of processing message based interrupts is very
useful for debugging of PCIe driver, mainly for its MSI part.

MFC after: 1 week
2020-04-29 14:31:25 +00:00
olivier
9fbb825c1f Skip bectl jail test if jail not installed (WITHOUT_JAIL).
Approved by:	kevans
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D24613
2020-04-29 14:15:21 +00:00
mmel
43798da41a Don't try to set frequendcy for enumerated but newer started CPUs.
Openfirmare enumerates and installs the driver for all processors,
regardless of whether they will be started later (because of power
constrains for example).

MFC after: 3 weeks
2020-04-29 14:14:15 +00:00
mmel
b9cad2d4c8 Don't allow to use FPU inside of rtld library.
Clang10 may use FPU instructions for optimizing operations with
memory blocks. But we don't want to do lengthy save/restore of all
FPU registers across each rtld_start() call.

MFC after:	3 week
2020-04-29 14:06:42 +00:00
mmel
c14a375467 Don't try to re-initialize already preseted regulator.
Don't set initial voltage for regulators having their voltage already
in allowed range. As side effect of this change, we don't try to set
initial voltage for fixed voltage regulators - these don't have impemented
voltage set  method so their initialization has always failed.

MFC after:	3 weeks
2020-04-29 13:45:21 +00:00
mmel
db4e94860d Multiple fixes for rockchip iodomain driver:
- always initialize selector of voltage signaling standard.
  Various versions of U-boot leaves voltage signaling standard settings
  for PMUIO2 domain in different state.  Always initialize it
  into expected state.
- start the driver as early as possible, the IO domains should be
  initialized before other drivers are attached.
- rename RK3399 register to its name founds in TRM.

This is the second part of fixes for serial port corruption observed after
DT 5.6 import.

Reviewed by:	manu
MFC after:	1 week
2020-04-29 13:43:15 +00:00
emaste
89677cbc50 liblua: ensure that "require" will fail in bootstrap flua
We do not want to support bootstrapping lua modules, so ensure that
require will fail by providing a nonexistent path.

Reviewed by:	kevans
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D24610
2020-04-29 13:41:32 +00:00
bcr
d6b050e1d0 Add HISTORY section to domain(9).
Submitted by:	gbergling_gmail.com
Approved by:	bcr
Differential Revision:	https://reviews.freebsd.org/D24150
2020-04-29 11:46:01 +00:00
bcr
794bbc6a21 When copying and pasting the code in the EXAMPLE
section, it would result in the following error:

"ngctl: send msg: Invalid argument"

The reason for this is the missing whitespace to
separate the arguments. When adding the whitespace,
the example works as intended.

Submitted by:	    lutz_donnerhacke.de
Approved by:	    bcr
Differential Revision:	https://reviews.freebsd.org/D23773
2020-04-29 11:25:04 +00:00
bdrewery
1a38c45d0b Use universe-toolchain config(8)
This is a temporary hack to aid with config(8) changing in r360443.
It will not work for all cases.

env PATH is used because universe-toolchain is only built when worlds
are built, and then only if clang is needed, so it may not exist.

universe-toolchain needs to be expanded to always be built, inspected to
remove non-cross-build-safe tools, used for buildworld/buildkernel,
and potentially incremental build support.

Sponsored by:	Dell EMC
2020-04-29 02:18:39 +00:00
jilles
0b1d4f8660 sh: Assert INTOFF rather than applying it in ck*
As I noted in https://reviews.freebsd.org/D22756, INTOFF should be in effect
when calling ckmalloc/ckrealloc/ckfree to avoid memory leaks and double
frees. Therefore, change the functions to check if INTOFF is in effect
instead of applying it.

Reviewed by:	bdrewery
Differential Revision:	https://reviews.freebsd.org/D24599
2020-04-28 20:34:27 +00:00
melifaro
ba5c497845 Move route-specific ddb commands to route/route_ddb.c
Currently functionality resides in rtsock.c, which is a controlling
 interface, partially external to the routing subsystem.
Additionally, DDB-supporting functionality is > 100SLOC, which deserves
 a separate file.

Given that, move this functionality to a newly-created net/route/ subdir.

Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D24561
2020-04-28 20:00:17 +00:00
melifaro
7c1be85b66 Move route_temporal.c and route_var.h to net/route.
Nexthop objects implementation, defined in r359823,
 introduced sys/net/route directory intended to hold all
 routing-related code. Move recently-introduced route_temporal.c and
 private route_var.h header there.

Differential Revision:	https://reviews.freebsd.org/D24597
2020-04-28 19:14:09 +00:00
bdrewery
d8cded7fe8 Revert r360445
I did not intend to commit this yet as more work is needed for
non-amd64 kernels.
2020-04-28 18:53:49 +00:00
melifaro
1d7f87c6b2 Move struct rtentry definition to nhop_var.h.
One of the goals of the new routing KPI defined in r359823
 is to entirely hide`struct rtentry` from the consumers.
It will allow to improve routing subsystem internals and deliver
 features much faster.

This is one of the last changes, effectively moving struct rtentry
 definition to a net/route_var.h header, internal to the routing subsystem.

Differential Revision:	https://reviews.freebsd.org/D24580
2020-04-28 18:42:30 +00:00
bdrewery
a4c675f407 ctfmerge: Assert that there is enough room for types.
Sponsord by:		Dell EMC
Differential Revision:	https://reviews.freebsd.org/D24537
2020-04-28 16:09:28 +00:00
bdrewery
4cb95a1ad5 Don't try ctfconvert on file without debug info.
This was currently an ignored error but will change to a hard error
eventually.

Differential Revision:	https://reviews.freebsd.org/D24536
2020-04-28 16:09:25 +00:00
bdrewery
49f4465004 config: Add no-ctfconvert support.
Bump CONFIGVERS to 600018 for this support.

Some files may purposely have debug info disabled or are *source files*
that attempt to run ctfconvert on them. Currently ctfconvert ignores
these errors but I have a change to make the errors real so we can
catch real problems like exceeding type limits.

Sponsored by:		Dell EMC
Reviewed by:		imp, cem, kevans
Differential Revision:	https://reviews.freebsd.org/D24535
2020-04-28 16:09:22 +00:00
bdrewery
fcdcf2a876 None of these use opt_sched.h 2020-04-28 16:09:18 +00:00
bdrewery
3998e1ca9c Restore local kernel "prog" filtering lost in r332099.
This behavior is most relevant for ipfw(4) as documented in syslog.conf(5).
The recent addition of property-based regex filters in r359327 is a
fine workaround for this but the behavior was present since 1997 and
documented.

This only fixes local matching of the "kernel program". It does not
change the forwarded format at all. On the remote side it will still
be "kernel: ipfw:" and not be parsed as a kernel message. This matches
old behavior.

MFC after:	2 weeks
Reviewed by:	markj
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D24286
2020-04-28 16:07:15 +00:00
takawata
44b4ea5525 Add le_read_buffer_size command and manpage.
It supports both v1 and v2 command.

PR:245964
Submitted by:	Marc Veldman <marc@bumblingdork.com>
2020-04-28 16:00:34 +00:00
markj
7d7c4f74f0 Make sendfile(SF_SYNC)'s CV wait interruptible.
Otherwise, since the CV is not signalled until data is drained from the
socket, it is trivial to create an unkillable process using
sendfile(SF_SYNC) and a process-private PF_LOCAL socket pair.  In
particular, the cv_wait() in sendfile() does not get interrupted until
data is drained from the receiving socket buffer.

Reported by:	pho
Discussed with:	kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2020-04-28 15:02:44 +00:00
kevans
277d224e09 diff(1): don't reject specifying the same format multiple times
This may happen, for instance, if one happens to have an alias of diff to
diff -up and attempts to specify the amount of context on top of that.

Aliases like this may cause other problems, but if they're really not ever
generating non-unified diffs then we should at least not break that
use-case.

In addition, we'll now pick up a format mismatch if -p is specified with
!contextual && !unified && !unset.

Fix up a small trailing whitespace nit in the tests while we're here, and
add tests to make sure that we can double up all the formatting options.

Reported by:	jbeich
MFC after:	3 days
2020-04-28 14:33:33 +00:00
markj
afa3646dbf Re-check for wirings after busying the page in vm_page_release_locked().
A concurrent unlocked lookup can wire the page after
vm_page_release_locked() releases the last wiring, in which case
vm_page_release_locked() must not free the page.  Once the xbusy lock is
acquired, that, the object lock and the fact that the page is unmapped
ensure that the wire count cannot increase, so re-check for new wirings
after the page is xbusied.

Update the comment above vm_page_wired() to reflect the new
synchronization rules.

Reported by:	glebius
Reviewed by:	alc, jeff, kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D24592
2020-04-28 13:51:41 +00:00
takawata
8c947dacd0 Improve error handling
Check return values from hci_request()
Check rp.status
Print error messages with hci_status2str()

PR:	245769
Submitted by:	Marc Veldman
2020-04-28 13:28:58 +00:00
melifaro
192053a93a Convert rtalloc_mpath_fib() users to the new KPI.
New fib[46]_lookup() functions support multipath transparently.
Given that, switch the last rtalloc_mpath_fib() calls to
 dib4_lookup() and eliminate the function itself.

Note: proper flowid generation (especially for the outbound traffic) is a
 bigger topic and will be handled in a separate review.
This change leaves flowid generation intact.

Differential Revision:	https://reviews.freebsd.org/D24595
2020-04-28 08:06:56 +00:00
melifaro
4a05b1819a Eliminate now-unused parts of old routing KPI.
r360292 switched most of the remaining routing customers to a new KPI,
 leaving a bunch of wrappers for old routing lookup functions unused.

Remove them from the tree as a part of routing cleanup.

Differential Revision:	https://reviews.freebsd.org/D24569
2020-04-28 07:25:34 +00:00
melifaro
eeadd16587 Remove rtable dumping code from bootp.
This debugging code printing routing table data was introduced in rS25723,
 22+ years ago. The last functional commit to this code was rS67534, 19 years ago.
The code has been turned off by default all this time.
Lastly, this code directly iterates radix tree and rtentries, which is not
 not a proper interaction with routing system.

Differential Revision:	https://reviews.freebsd.org/D24554
2020-04-28 07:23:41 +00:00
delphij
2ccadef77b Do not overflow when calculating file system size.
Reported by:		Hyeongseok Kim <hyeongseok kim lge com>
Reviewed by:		cem, Hyeongseok Kim
MFC after:		3 days
Differential Revision:	https://reviews.freebsd.org/D24603
2020-04-28 05:10:34 +00:00