r334252 rmacklem May 26, 2018, 11:02 p.m.
The sleep for I/O completion during an NFSv4.1 pNFS layout recall used
the wrong event value and could result in the "[nfscl]" thread hung
for the mount.
This patch fixes the event to be the correct.
This bug will only affect NFSv4.1 pnfs mounts and only when the server
does a layout recall callback, so it won't affect many. Without the patch,
a mount without the "pnfs" option will avoid the problem.
Found during testing of the pNFS server.

MFC after:	1 week
ViewVC
r334247 eadler May 26, 2018, 9:14 p.m.
Requested by:	emaste
ViewVC
r334245 mmacy May 26, 2018, 7:38 p.m.
r334244 mmacy May 26, 2018, 7:29 p.m.
vendor provided pmu-events tables and sundry cleanups.

The vendor pmu-events tables provide counter descriptions, default
sample rates, event, umask, and flag values for all the counter
configuration permutations. Using this gives us:

- much simpler kernel code for the MD component
- helpful long and short event descriptions
- simpler user code
- sample rates that won't overload the system

Update man page with newer sample types and remove unused sample type.
ViewVC
r334243 mmacy May 26, 2018, 7:26 p.m.
because of squash commit messages
ViewVC
r334242 mmacy May 26, 2018, 6:12 p.m.
vendor provided pmu-events tables and sundry cleanups.

The vendor pmu-events tables provide counter descriptions, default
sample rates, event, umask, and flag values for all the counter
configuration permutations. Using this gives us:

- much simpler kernel code for the MD component
- helpful long and short event descriptions
- simpler user code
- sample rates that won't overload the system

Update man page with newer sample types and remove unused sample type.

Squashed commit of the following:

commit 4459d43eff815bec08ccc5533dbe5de846f03128
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Sat May 26 00:06:31 2018 -0700

    libpmc: fix pmu function signatures for non amd64

commit a2cb8bbc586c65d41f9b291430a2261ec67b59fe
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 22:38:11 2018 -0700

    pmcstat: fix indentation of usage

commit f686954b15ff56a833ac80404898977cb80a265b
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 22:19:49 2018 -0700

    pmclog(3): add callchain and pmcallocatedyn, remove pcsample

commit 73e13a0d2e9498c81c150d14d022050cee7511bb
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 22:19:00 2018 -0700

    pmclog.h: GC pcsample field

commit 3e93ffd65da641fa657539dad3c48e281f8b5798
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 22:05:57 2018 -0700

    hwpmc: make Intel core CPUs use external event tables

commit 634f5fae1e1644ac324003136c66cd9c619d1c93
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 22:00:06 2018 -0700

    pmclog: update log record types, bump PMC_MAJOR
    - explicitly make log record types a multiple of 8 bytes
    - hook in pmu event types for pmc_allocate records
    - remove references to no longer PCSAMPLE record

commit 83d84fcd2d65bdf6ddcb2e155a22f0cfa2a9c225
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 21:52:10 2018 -0700

    libpmc: add support for having vendor table driven pmc_allocate

commit 9e6ad63c40c2fce8404847ace5078ca6cb33a736
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 19:11:33 2018 -0700

    hwpmc_core: add accessors for EVSEL & UMASK, make IAP_UMASK useful to user

commit 859dceb93daa6419a48c794db99b6758e5b041c9
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 19:09:45 2018 -0700

    pmcstat: update usage and man page as well as make -L consistent with pmccontrol

commit 79c7d8597e28c2eb13f5f9113e65ec2792ca57b1
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 18:07:03 2018 -0700

    pmu_util: add support for all current intel event keywords

commit d8089c7f6a6c8527f38324252b1ffb47004694c6
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 17:45:00 2018 -0700

    add description for new arguments

commit 058336740bab53c62ec88a3a026ea848cf3878c6
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 17:38:15 2018 -0700

    libpmc: move pmu_events table and pmu_utils out of libpmcstat so that they can be used by pmc_allocate

commit 049b66b382e2f833c3f47bc8df9e750cb265709f
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 16:12:41 2018 -0700

    pmcstat: hook pmu_events counter description utility routines in

commit f5e01e7b37a691dc045e1aa16b3ebdd162515de8
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 16:11:59 2018 -0700

    pmu_events: add utility routines for listing counters and their descriptions

commit cba4d4f8907f772279f86f18f915e0d74d33ac56
Author: Matt Macy <mmacy@mattmacy.io>
Date:   Fri May 25 16:09:50 2018 -0700

    pmu-events: expand out skylake regex to simplify string matches
ViewVC
r334240 vangyzen May 26, 2018, 2:23 p.m.
The "mask" was leaked on some error paths.

Reported by:	Coverity
CID:		1384683
Sponsored by:	Dell EMC
ViewVC
r334239 vangyzen May 26, 2018, 2:14 p.m.
omcast was used without being initialized in the non-multicast case.
The only effect was that the interface's multicast output counter could be
incorrect.

Reported by:	Coverity
CID:		1379662
MFC after:	3 days
Sponsored by:	Dell EMC
ViewVC
r334238 vangyzen May 26, 2018, 2:01 p.m.
In some cases, other_cpus was used without being initialized.
Thankfully, it was harmless.

Reported by:	Coverity
CID:		1385265
Sponsored by:	Dell EMC
ViewVC
r334237 trasz May 26, 2018, 11:13 a.m.
switch the default kldxref_enable to YES.

The reason is that it's required for every image that's being cross-built,
as kldxref(8) cannot handle files for non-native architectures.  For the
one that is not - amd64 - having it on by default doesn't change anything;
the script is noop if the linker.hints already exists.

MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
ViewVC
r334236 eadler May 26, 2018, 5:15 a.m.
This change also makes alignment and spacing an explicit number rather
than a bunch of spaces.

Reviewed by:	mmacy
Requested by:	Yuri Pankov <yuripv@yuripv.net>
ViewVC
r334235 jhibbits May 26, 2018, 4:33 a.m.
POWER9 supports Radix page tables in addition to Hashed page tables.  When
Radix page tables are in use, the TLB is cut in half, so that half of the
TLB is used for the page walk cache.  This is the default behavior, however
FreeBSD currently does not support Radix tables.  Clear this bit so that we
can use the full TLB.  Do this in the MMU logic so that configuration can be
localized to the specific translation format.  Once we do support Radix
tables, the setup for that will be localized to the Radix MMU kobj.
ViewVC
r334234 jhibbits May 26, 2018, 4:24 a.m.
r334233 alc May 26, 2018, 2:59 a.m.
superpage mappings were already being created by automatic promotion in
vm_fault_populate(), this change reduces the cost of creating those
mappings.  Essentially, one pmap_enter(..., psind=1) call takes the place
of 512 pmap_enter(..., psind=0) calls, and that one pmap_enter(...,
psind=1) call eliminates the allocation of a page table page.

Reviewed by:	kib
MFC after:	10 days
Differential Revision:	https://reviews.freebsd.org/D15572
ViewVC
r334232 jhibbits May 26, 2018, 2:45 a.m.