6d4d6573 mav June 22, 2019, 7:09 p.m.
I don't want to be regularly notified that my enclosure violates standards
until there is some real problem I want to debug.

MFC after:	2 weeks
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05b62601 imp June 22, 2019, 4:54 p.m.
Summary:
Adds a list of valid CPUTYPE flags for arm and arm64 architectures
List taken from share/mk/bsd.cpu.mk

Submitted by: Daniel Engberg
Reviewed By: imp
Differential Revision: https://reviews.freebsd.org/D20315
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36c5a4cb alc June 22, 2019, 4:26 p.m.
(1) pmap_remove(), where it eliminates redundant TLB invalidations by
pmap_remove() and pmap_remove_l3(), and (2) pmap_enter_l2(), where it may
optimize the TLB invalidations by batching them.

Reviewed by:	markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D12725
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6ab631e8 dteske June 22, 2019, 3:39 p.m.
Latter is undesired when including <sys/param.h> according to style(9)

Submitted by:	Faraz Vahedi
Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D20637
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a6d2a24c rlibby June 22, 2019, 5:35 a.m.
b8038d78 mav June 22, 2019, 3:50 a.m.
MFC after:	2 weeks
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a616b253 dougm June 22, 2019, 3:16 a.m.
'-E' appears on the swapon command line, or if "trimonce" appears as
an fstab option.

Discussed at: BSDCAN
Tested by: markj
Reviewed by: markj
Approved by: markj (mentor)
Differential Revision:https://reviews.freebsd.org/D20599
cgit ViewVC
df840654 vangyzen June 22, 2019, 1:20 a.m.
Until r349278, bhyve presented a seg_max to the guest that was too large.
Detect this case and clamp it to the virtqueue size.  Otherwise, we would
fail the "too many segments to enqueue" assertion in virtqueue_enqueue().

I hit this by running a guest with a MAXPHYS of 256 KB.

Reviewed by:	bryanv cem
MFC after:	1 week
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D20703
cgit ViewVC
6805c9b7 mav June 22, 2019, 1:06 a.m.
SES specifications tell: "The Additional Element Status descriptors shall
be in the same order as the status elements in the Enclosure Status
diagnostic page".  It allows us to question ELEMENT INDEX that is lower
then values we already processed.  There are many SAS2 enclosures with
this kind of problem.

While there, add more specific error messages for cases when ELEMENT INDEX
is obviously wrong.  Also skip elements with INVALID bit set.

MFC after:	2 weeks
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0feb46b0 scottl June 21, 2019, 11:40 p.m.
visible functional changes, though code flow was modified a bit
internally to lessen the need for goto jumps and chained if
conditionals.
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44f654fd asomers June 21, 2019, 11:29 p.m.
Even if a short read is caused by EOF, it's still necessary to bzero the
remaining buffer, because that buffer could become valid as a result of a
future ftruncate or pwrite operation.

Reported by:	fsx
Sponsored by:	The FreeBSD Foundation
cgit ViewVC
7318fcb5 mav June 21, 2019, 11:29 p.m.
When some type has 0 elements, saved_individual_element_index was set
to -1 on second type bump, since individual_element_index was not
restored after the first.  To me it looks easier just to increment
saved_individual_element_index separately than think when to save it.

MFC after:	2 weeks
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1bb95729 asomers June 21, 2019, 9:50 p.m.
Define __daddr_t in _types.h and use it in filio.h

Reported by:	ian, bde
Reviewed by:	ian, imp, cem
MFC after:	2 weeks
MFC-With:	349233
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20715
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aef22f2d asomers June 21, 2019, 9:44 p.m.
A fuse server may return a short read for three reasons:

* The file is opened with FOPEN_DIRECT_IO.  In this case, the short read
  should be returned directly to userland.  We already handled this case
  correctly.

* The file was truncated server-side, and the read hit EOF.  In this case,
  the kernel should update the file size.  Fixed in the case of VOP_READ.
  Fixing this for VOP_GETPAGES is TODO.

* The file is opened in writeback mode, there are dirty buffers past what
  the server thinks is the file's EOF, and the read hit what the server
  thinks is the file's EOF.  In this case, the client is trying to read a
  hole, and should zero-fill it.  We already handled this case, and I added
  a test for it.

Sponsored by:	The FreeBSD Foundation
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db2114b4 vangyzen June 21, 2019, 6:57 p.m.
The seg_max value reported to the guest should be two less than the
host's maximum, in order to leave room for the request and the
response.  This is analogous to r347033 for virtio_block.

We hit the "too many segments to enqueue" assertion on OneFS because
we increase MAXPHYS to 256 KB.

Reviewed by:	bryanv
Discussed with:	cem jhb rgrimes
MFC after:	1 week
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D20529
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