Commit Graph

221785 Commits

Author SHA1 Message Date
Bruce Evans
864c28cf81 Use inline asm instead of unportable intrinsics for the SSE4 crc32
optimization.

This fixes building with gcc-4.2.1 (it doesn't support SSE4).
gas-2.17.50 [FreeBSD] supports SSE4 instructions, so this doesn't
need using .byte directives.

This fixes depending on host user headers in the kernel.

Fix user includes (don't depend on namespace pollution in <nmmintrin.h>
that is not included now).

The instrinsics had no advantages except to sometimes avoid compiler
pessimixations.  clang understands them a bit better than inline asm,
and generates better looking code which also runs better for cem, but
for me it just at the same speed or slower by doing excessive
unrollowing in all the wrong places.  gcc-4.2.1 also doesn't understand
what it is doing with unrolling, but with -O3 somehow it does more
unrolling that helps.

Reduce 1 of the the compiler pessimizations (copying a variable which
already satisfies an "rm" constraint in a good way by being in memory
and not used again, to different memory and accessing it there.  Force
copying it to a register instead).

Try to optimize the inner loops significantly, so as to run at full
speed on smaller inputs.  The algorithm is already very MD, and was
tuned for the throughput of 3 crc32 instructions per cycle found on
at least Sandybridge through Haswell.  Now it is even more tuned for
this, so depends more on the compiler not rearranging or unrolling
things too much.  The main inner loop for should have no difficulty
runing at full speed on these CPUs unless the compiler unrolls it too
much.  However, the main inner loop wasn't even used for buffers smaller
than 24K.  Now it is used for buffers larger than 384 bytes.  Now it
is not so long, and the main outer loop is used more.  The new
optimization is to try to arrange that the outer loop runs in parallel
with the next inner loop except for the final iteration; then reduce
the loop sizes significantly to take advantage of this.

Approved by:	cem
Not tested in production by:	bde
2017-03-26 10:31:48 +00:00
Andriy Voskoboinyk
15044a59f3 iwn: deduplicate code in iwn_tx_data() and iwn_tx_data_raw().
Some code was additionally moved for (future) lock splitting.

Tested with Intel 6205, STA mode.

Differential Revision:	https://reviews.freebsd.org/D10106
2017-03-26 09:41:08 +00:00
Andriy Voskoboinyk
b4750b8855 iwn: omit unneeded bus_dmamap_sync() calls when compiled without
'options IWN_DEBUG'
2017-03-26 09:10:01 +00:00
Michal Meloun
6fc9f4dbc8 Preserve VFP state across signal delivery.
We don't have enouch space to store full VFP context within mcontext
stucture. Due to this:
 - follow i386/amd64 way and store VFP state outside of the mcontext_t
   but point to it. Use the size of VFP state structure as an 'magic'
   indicator of the saved VFP state presence.
 - teach set_mcontext() about this external storage.
 - for signal delivery, store VFP state to expanded 'struct sigframe'.

Submited by:	Andrew Gierth (initial version)
PR:		217611
MFC after:	2 weeks
2017-03-26 08:36:56 +00:00
Michal Meloun
d9d7354968 Save VFP state on fork().
Update the copy of VFP state in PCB before it is cloned for new process.

MFC after:	2 weeks
2017-03-26 08:36:20 +00:00
Konstantin Belousov
70fd237c5d Provide less laborius way to enable busdma DMAR to only short list of devices.
Kernel environment variable hw.busdma.default can take values 'bounce'
and 'dmar' and selects corresponding busdma backend as default.
Per-device environment variable hw.busdma.pci<domain>.<bus>.<slot>.<func>
takes the same values and overrides hw.busdma.default for the given device.

Note that even with hw.busdma.default=bounce, DMA translation engines
are still started if DMARs are enabled, to disable them use
hw.dmar.dma tunable, as before.

Sponsored by:	The FreeBSD Foundation
MFC after: 1 week
2017-03-26 00:40:35 +00:00
Oleksandr Tymoshenko
e9804ab2bd [rpi] Use compatibility string from upstream DTB for I2C controller
FreeBSD uses upstream DTB for RPi3 build and compatibility string for
i2c device is different there. Add this new string to compatibility data.

Reported by:	Karl Denninger
MFC after:	3 days
2017-03-25 22:58:37 +00:00
Andriy Voskoboinyk
7d6a0b8e00 iwn: fix return code conflict in iwn_init_locked()
Do not try to use errno(2) codes here; instead, just return unique
value (1) when radio is disabled via hardware switch and another
one (-1) for any other error in initialization path.

Tested with Intel 6205, STA mode.
2017-03-25 22:07:21 +00:00
Sevan Janiyan
56e4d8d5f6 ftp.microsoft.com is dead and the document was not archived, point to the full
protocol spec document instead.
Fix spelling mistake flagged by igor.
Rephrase bad sentence flagged by igor.

Approved by:	bcr (mentor)
MFC after:	5 days
Differential Revision:	 https://reviews.freebsd.org/D10111
2017-03-25 21:33:48 +00:00
Sean Bruno
e407efca16 Add ids for ALC233 found on Intel Skull Mountain NUC. 2017-03-25 19:12:09 +00:00
Andriy Gapon
20c69e76b4 dtrace sched:::preempt should fire only when there is preemption
The probe fire on any thread switch before.

Reviewed by:	markj
MFC after:	1 week
Sponsored by:	Panzura
2017-03-25 19:08:51 +00:00
Andriy Gapon
a7b4c009e1 specific end of interrupt implementation for AMD Local APIC
The change is more intrusive than I would like because the feature
requires that a vector number is written to a special register.
Thus, now the vector number has to be provided to lapic_eoi().
It was readily available in the IO-APIC and MSI cases, but the IPI
handlers required more work.
Also, we now store the VMM IPI number in a global variable, so that it
is available to the justreturn handler for the same reason.

Reviewed by:	kib
MFC after:	6 weeks
Differential Revision: https://reviews.freebsd.org/D9880
2017-03-25 18:45:09 +00:00
Andriy Voskoboinyk
64b92f2691 iwn: do not try to update node configuration when the node does not exist.
Firmware will just respond with status '0x8' (node does not exist) or
will hang -> cause 'device timeout's (sometimes).
2017-03-25 15:57:47 +00:00
Dmitry Chagin
6c2a934b79 Implement Linux mincore() system call.
This is necessary for the upcoming drm-next.

Suggested by:	hselasky@
MFC after:	1 month
2017-03-25 15:47:29 +00:00
Mike Karels
8c1960d506 Fix reference count leak with L2 caching.
ip_forward, TCP/IPv6, and probably SCTP leaked references to L2 cache
entry because they used their own routes on the stack, not in_pcb routes.
The original model for route caching was callers that provided a route
structure to ip{,6}input() would keep the route, and this model was used
for L2 caching as well. Instead, change L2 caching to be done by default
only when using a route structure in the in_pcb; the pcb deallocation
code frees L2 as well as L3 cacches. A separate change will add route
caching to TCP/IPv6.

Another suggestion was to have the transport protocols indicate willingness
to use L2 caching, but this approach keeps the changes in the network
level

Reviewed by:    ae gnn
MFC after:      2 weeks
Differential Revision:  https://reviews.freebsd.org/D10059
2017-03-25 15:06:28 +00:00
Dmitry Chagin
55b903e2e0 MFV r315950:
Update vendor/tcsh to git b605cb561d

Vendor changes:

1. PR/471: Daiki Ueno: Delay interpreting arginp until we've processed
our startup files (which can change the NLS environment).

2. Fix type of read in prompt confirmation (eg. rmstar) (David Kaspar).

3. Fix out of bounds read (Brooks Davis)
(reproduce by starting tcsh and hitting tab at the prompt).

4. Don't play pointer tricks that are undefined in modern c
(Brooks Davis).
2017-03-25 14:14:11 +00:00
Dmitry Chagin
48eb25df68 Update vendor/tcsh to git b605cb561d
Vendor changes:

1. PR/471: Daiki Ueno: Delay interpreting arginp until we've processed
our startup files (which can change the NLS environment).

2. Fix type of read in prompt confirmation (eg. rmstar) (David Kaspar).

3. Fix out of bounds read (Brooks Davis)
(reproduce by starting tcsh and hitting tab at the prompt).

4. Don't play pointer tricks that are undefined in modern c
(Brooks Davis).
2017-03-25 14:09:12 +00:00
Dmitry Chagin
19d2e3de75 Update to tcsh 6.20.00 2017-03-25 13:32:28 +00:00
Dimitry Andric
4a1f3708f7 Import libcxxrt master 8a853717e61d5d55cbdf74d9d0a7545da5d5ff92.
Interesting fixes which were not already merged:
0c7c611 Merge C++ demangler bug fixes from ELF Tool Chain ()
2b208d9 __cxa_demangle_gnu3: demangle 'z' as '...', not 'ellipsis' ()

MFC after:	3 days
2017-03-25 13:17:48 +00:00
Andriy Voskoboinyk
8972534f35 iwn: add few missing notification types into iwn_intr_str() 2017-03-25 13:15:43 +00:00
Dimitry Andric
44f3e9df0c Import libcxxrt master 8a853717e61d5d55cbdf74d9d0a7545da5d5ff92.
Interesting fixes:
c9601e9 __cxa_demangle_gnu3: fix demangling of wchar_t ()
0c7c611 Merge C++ demangler bug fixes from ELF Tool Chain ()
2b208d9 __cxa_demangle_gnu3: demangle 'z' as '...', not 'ellipsis' ()
c94e7e0 Add _US_ACTION_MASK to libcxxrt's arm-specific unwind header ()
8a85371 Simplify some code.
2017-03-25 12:51:11 +00:00
Baptiste Daroussin
d1005f6a13 Add a regression test for r31512 fix
PR:		217934
MFC after:	1 week
2017-03-25 10:47:58 +00:00
Konstantin Belousov
3d47c58b98 Avoid leaking allocated but unused context after creation race.
As noted in the comment, nothing special needs to be done to destroy
the unneeded context after the allocation race, but the context memory
itself still should to be freed.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-03-25 10:47:35 +00:00
Konstantin Belousov
5f8e5c7fa2 Do not create RMRR entries for identity-mapped domains.
It does not make sense since identity mapping already provides the
required mapping for RMRR ranges.  More, since identity page tables do
not reflect content of map entries for id domains, creating RMRR
entries makes domain data inconsistent.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-03-25 10:45:16 +00:00
Konstantin Belousov
ad969cb1cd Slight cleanup of the comment.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-03-25 10:42:10 +00:00
Ganbold Tsagaankhuu
c8c3a33403 Fix and add comments to match selected frequency sample.
Add debug printfs when bootverbose is used.
No functional changes.
2017-03-25 10:39:24 +00:00
Adrian Chadd
6c3c52590e [iwm] Add the BSS's basic rates to iwm's LQ command, not all the rates.
Makes the firmware use appropriate Tx rates for ACKs.

Obtained from: dragonflybsd.git ab1d3efc208e797c1e09759cd506c95c0aeaa06e
2017-03-25 02:55:13 +00:00
Adrian Chadd
cd20383e4a [iwm] Enable Energy Based Scan (EBS).
This can significantly reduce scan duration thus saving time and power.
EBS failure reported by FW disables EBS for current connection. It is
re-enabled upon new connection attempt on any WLAN interface.

Obtained from:	dragonflybsd.git 89f579e9823a5c446ca172cf82bbc210d6a054a4
2017-03-25 02:49:20 +00:00
Adrian Chadd
5f00681c7d [iwm] GC unused code from if_iwm_scan.c, copyied from iwn or iwlwifi/dvm.
Obtained from:	dragonflybsd.git 10881df269b93c26e5ee6af629c36db5672e6e52
2017-03-25 02:44:25 +00:00
Adrian Chadd
8d3bbea007 [iwm] Tiny cleanup in iwm_rx_addbuf().
Obtained from:	dragonflybsd.git 3370bc5504ebb3c1b9bb960a185cd0c8052a2845
2017-03-25 02:42:52 +00:00
Navdeep Parhar
4aff1c38d1 cxgbe/iw_cxgbe: allocations that use GFP_KERNEL (which is M_WAITOK on
FreeBSD) cannot fail.

MFC after:	3 days
2017-03-25 02:28:21 +00:00
Navdeep Parhar
d4ce83cd36 cxgbe/iw_cxgbe: alloc_ep expects a gfp_t, and it's always ok to sleep during
alloc_ep.
2017-03-25 01:45:04 +00:00
Navdeep Parhar
a8d61a0a7b cxgbe/iw_cxgbe: c4iw_connect should always returns a -ve errno on failure.
MFC after:	3 days
2017-03-25 01:38:17 +00:00
Warner Losh
480c955cee Add 'device iic' to bring in userland I2C driver.
Submitted by: karl@
2017-03-24 22:33:03 +00:00
Andriy Voskoboinyk
e2db307ebc net80211: fix possible panic when wlan(4) interface is destroyed.
If this is the last running vap wait until device will be powered off
(fixes panic when 'ifconfig wlan0 destroy' is executed for running iwn(4)
interface).

Tested with:
 - Intel 6205, STA mode.
 - RTL8188EU, STA / IBSS modes.
 - RTL8821AU, STA / HOSTAP modes.
2017-03-24 22:29:51 +00:00
Bruce Evans
4e501eb7cc Remove buggy adjustment of page tables in db_write_bytes().
Long ago, perhaps only on i386, kernel text was mapped read-only and
it was necessary to change the mapping to read-write to set breakpoints
in kernel text.  Other writes by ddb to kernel text were also allowed.
This write protection is harder to implement with 4MB pages, and was
lost even for 4K pages when 4MB pages were implemented.  So changing
the mapping became useless.  It was actually worse than useless since
it followed followed various null and otherwise garbage pointers to
not change random memory instead of the mapping.  (On i386s, the
pointers became good in pmap_bootstrap(), and on amd64 the pointers
became bad in pmap_bootstrap() if not before.)

Another bug broke detection of following of null pointers on i386,
except early in boot where not detecting this was a feature.  When
I fixed the bug, I accidentally broke the feature and soon got traps
in db_write_bytes().  Setting breakpoints early in ddb was broken.

kib pointed out that a clean way to do the adjustment would be to use
a special [sub]map giving a small window on the bytes to be written.

The trap handler didn't know how to fix up errors for pagefaults
accessing the map itself.  Such errors rarely need fixups, since most
traps for the map are for the first access which is a read.

Reviewed by:	kib
2017-03-24 17:34:55 +00:00
Alexander Motin
00be964c08 Add brackets to fix incorrect macro expansion.
Reported by:	Andreas Hollmann / PVS-Studio
MFC after:	2 weeks
2017-03-24 16:26:11 +00:00
Eugene Grosbein
92bb425e4e Properly initialise with content of pw.conf(5) that was mistakenly ignored.
Also, respect "defaultgroup" if specified there.

PR:		217934
Reported by:	Victor Sudakov <vas@mpeks.tomsk.su>
Reviewed by:	bapt
Approved by:	bapt, vsevolod (mentor)
MFC after:	1 week
2017-03-24 16:18:57 +00:00
Gavin Atkinson
cb8f312598 Improve grammar on a warning, and only use one line rather than two when
printing it.
2017-03-24 16:18:20 +00:00
Gleb Smirnoff
9e3c8bd3e2 Make sendfile(2) more robust against file change. This fixes a possible
crash when the file shrinks.  This also fixes sendfile(2) not sending more
data in a case when the file grows, and the request is open-ended or
specifies a size that is greater than old file size.

PR:		217789
Reviewed by:	gallatin
MFC after:	10 days
2017-03-24 16:01:19 +00:00
Dag-Erling Smørgrav
e4deb071bd Restore the NULL check that was removed in upstream r913. It is not
unreasonable to call pam_end() with a NULL pamh in error handling code.

Reported by:	rwatson
2017-03-24 14:45:58 +00:00
Alexander Motin
7e31684ea4 Unify initiator and target DMA setup and command sending.
The code is so alike that it is pointless to keep it separate.

MFC after:	2 weeks
2017-03-24 14:44:03 +00:00
Sean Bruno
cb101e1257 Add missing 'else' to conditional. This doesn't really affect the code
flow or configuration in any way.
2017-03-24 14:27:29 +00:00
Sean Bruno
fdb25f38cb Add missing 'else' to 3-state conditional during setup of interrupts.
We don't want to overwrite the 82574 interrupt setup with a different
configuration.

PR:		218041
Submitted by:	razmyslov@viva64.com
2017-03-24 14:25:56 +00:00
Warner Losh
416823b103 Use a more stream-lined version of fix_value.
Submitted by: ian@
2017-03-24 13:46:26 +00:00
Michal Meloun
dfe5f22fd7 Cleanup structures related to VFP and/or mcontext_t.
- in mcontext_t, rename newer used 'union __vfp' to equaly sized 'mc_spare'.
  Space allocated by 'union __vfp' is too small and cannot hold full
  VFP context.
- move structures defined in fp.h to more appropriate headers.
- remove all unused VFP structures.

MFC after:	2 weeks
2017-03-24 11:46:49 +00:00
Alexander Motin
3aef5b286a MFV r315290, r315291: 7303 dynamic metaslab selection
illumos/illumos-gate@8363e80ae7
https://github.com/illumos/illumos-gate/commit/8363e80ae72609660f6090766ca8c2c18

https://www.illumos.org/issues/7303

  This change introduces a new weighting algorithm to improve metaslab selection.
  The new weighting algorithm relies on the SPACEMAP_HISTOGRAM feature. As a result,
  the metaslab weight now encodes the type of weighting algorithm used
  (size-based vs segment-based).

  This also introduce a new allocation tracing facility and two new dcmds to help
  debug allocation problems. Each zio now contains a zio_alloc_list_t structure
  that is populated as the zio goes through the allocations stage. Here's an
  example of how to use the tracing facility:

> c5ec000::print zio_t io_alloc_list | ::walk list | ::metaslab_trace
  MSID    DVA    ASIZE      WEIGHT             RESULT               VDEV
     -      0      400           0    NOT_ALLOCATABLE           ztest.0a
     -      0      400           0    NOT_ALLOCATABLE           ztest.0a
     -      0      400           0             ENOSPC           ztest.0a
     -      0      200           0    NOT_ALLOCATABLE           ztest.0a
     -      0      200           0    NOT_ALLOCATABLE           ztest.0a
     -      0      200           0             ENOSPC           ztest.0a
     1      0      400      1 x 8M            17b1a00           ztest.0a

> 1ff2400::print zio_t io_alloc_list | ::walk list | ::metaslab_trace
  MSID    DVA    ASIZE      WEIGHT             RESULT               VDEV
     -      0      200           0    NOT_ALLOCATABLE           mirror-2
     -      0      200           0    NOT_ALLOCATABLE           mirror-0
     1      0      200      1 x 4M            112ae00           mirror-1
     -      1      200           0    NOT_ALLOCATABLE           mirror-2
     -      1      200           0    NOT_ALLOCATABLE           mirror-0
     1      1      200      1 x 4M            112b000           mirror-1
     -      2      200           0    NOT_ALLOCATABLE           mirror-2

  If the metaslab is using segment-based weighting then the WEIGHT column will
  display the number of segments available in the bucket where the allocation
  attempt was made.

Author: George Wilson <george.wilson@delphix.com>
Reviewed by: Alex Reece <alex@delphix.com>
Reviewed by: Chris Siden <christopher.siden@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Paul Dagnelie <paul.dagnelie@delphix.com>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Don Brady <don.brady@intel.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
2017-03-24 09:37:00 +00:00
Ed Schouten
eb29911a30 Include <sys/systm.h> to obtain the memcpy() prototype.
I got a report of this source file not building on Raspberry Pi. It's
interesting that this only fails for that target and not for others.
Again, that's no reason not to include the right headers.

PR:		217969
Reported by:	Johannes Jost Meixner
MFC after:	1 week
2017-03-24 07:09:33 +00:00
Justin Hibbits
457797001e Don't bother checking core version
We already constrain by SoC, so there's no need to check the core version, too.
2017-03-24 01:52:10 +00:00
Justin Hibbits
52f0686952 Switch qoriq_gpio over to using ofw_bus_search_compatible
This will make it easier to add more compatibility strings in the future, if
necessary.
2017-03-24 01:30:18 +00:00