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Author SHA1 Message Date
Adrian Chadd
a5e093b0e0 Wrap cast to (struct wpi_node *) into WPI_NODE macros 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:23:58 +00:00
Adrian Chadd
76fdf7eb35 msleep() -> mtx_sleep() 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:22:16 +00:00
Adrian Chadd
cb0de40f2a Fix warning: Value stored to 'supportsa' is never read. 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:21:30 +00:00
Adrian Chadd
96dadeb0aa Fix error handling in wpi_scan(). 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:20:43 +00:00
Adrian Chadd
bb086d4e83 Fix indentation - non-functional change. 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:19:54 +00:00
Adrian Chadd
ebf62e08fb Check some variables only on active TX rings 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:19:01 +00:00
Adrian Chadd
5f25a0e970 Use correct pointer for wpi_softc 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:18:09 +00:00
Adrian Chadd
01729242e5 Fix panics in wpi_tx_done() when powersave is enabled 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:17:25 +00:00
Adrian Chadd
71258eb207 Fix races between wpi_rx_done() and wpi_stop() 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:15:10 +00:00
Adrian Chadd
e336bd5499 Divide ackfailcnt by 2 (firmware decreases rate after two unsuccessful retries) 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:13:58 +00:00
Adrian Chadd
811fe0a8fb Run callout_reset() with mutex held. 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:13:07 +00:00
Adrian Chadd
0c66281c5f Add missed ieee80211_draintask() 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:12:16 +00:00
Adrian Chadd
9facf2b90a Fix a typo (IEEE80211_S_SCAN -> IEEE80211_F_SCAN) 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:10:55 +00:00
Adrian Chadd
893edbea10 Fix mbuf mapping errors in wpi_cmd2() + add check for nsegs 
PR:		kern/197143
Submitted by:	Andriy Voskoboinyk <s3erios@gmail.com>
 2015-03-15 20:09:47 +00:00
Andrew Turner
d051c9457e Move the x86 specific files to be built in the amd64 loader.efi. This will 
help with importing the arm and arm64 versions of loader.efi.
 2015-03-15 19:00:35 +00:00
Alexander Motin
811a355f1a According to Linux and QEMU, s/n equal to buffer is not zero-terminated. 
This makes same s/n reported for both virtio and AHCI drivers.

MFC after:	2 weeks
 2015-03-15 17:45:16 +00:00
Ian Lepore
207e72288c Remove redundant sysctl_handle_string() calls, the sbuf auto-drain takes 
care of that.

Reviewed by:	erj@
 2015-03-15 17:39:38 +00:00
Alexander Motin
f2e62de7d9 Close potential race on blockif_close(). 
Reported by:	vangyzen
MFC after:	2 weeks
 2015-03-15 16:18:03 +00:00
Alexander Motin
7315946b80 Fix networking problem after r280026. 
I've missed that network driver sometimes returns taken request back to
available queue without processing.  Add new helper function for that case.

Reported by:	flo
MFC after:	2 weeks
 2015-03-15 16:09:39 +00:00
Alexander Motin
e72d4950e1 Give AHCI disk serial based on backing file path same as for virtio block. 
It is still not good that they may intersect on different hosts, but that
is better then intersecting on the same host.

MFC after:	2 weeks
 2015-03-15 15:29:03 +00:00
Robert Watson
9dcce6e267 Now that DTrace stack traces handle exception frames better, skip fewer 
stack frames for FBT 'entry' probes on ARM.

MFC after:	3 days
Sponsored by:	DARPA, AFRL
 2015-03-15 15:19:02 +00:00
Robert Watson
2a1d3dee4f On ARM, unlike some other architectures, saved $pc values from in-kernel 
traps do appear in the regular call stack, rather than only in a special
trap frame, so we don't need to inject the trap-frame $pc into a returned
stack trace in DTrace.

MFC after:	3 days
Sponsored by:	DARPA, AFRL
 2015-03-15 15:17:34 +00:00
Alexander Motin
066a8f1411 Rewrite virtio block device driver to work asynchronously and use the block 
I/O interface.

Asynchronous operation, based on r280026 change, allows to not block virtual
CPU during I/O processing, that on slow/busy storage can take seconds.
Use of recently improved block I/O interface allows to process multiple
requests same time, that improves random I/O performance on wide storages.

Benchmarks of virtual disk, backed by ZVOL on RAID10 pool of 4 HDDs, show
~3.5 times random read performance improvements, while no degradation on
linear I/O.  Guest CPU usage during test dropped from 100% to almost zero.

MFC after:	2 weeks
 2015-03-15 14:57:11 +00:00
Robert Watson
808d83b01a Replace the completely arbitrary '3' with '9' for the number of frames to 
skip using the DTrace 'profile' provider on ARM.  This causes stack traces
to skip various driver-and callout-related things as they do on x86, where
the likewise arbitrary values are '6' (32-bit) and '10' (64-bit) for
similar sorts of reasons.

MFC after:	3 days
Sponsored by:	DARPA, AFRL
 2015-03-15 14:12:40 +00:00
Dimitry Andric
70aad3bf07 Upgrade our copy of clang, llvm and lldb to 3.6.0 release. 
Please note that from 3.5.0 onwards, clang/llvm/lldb require C++11
support to build; see UPDATING for more information.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.6.0/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.6.0/tools/clang/docs/ReleaseNotes.html>

Thanks to Ed Maste for the lldb part of this upgrade.

Exp-run:	antoine
 2015-03-15 13:31:13 +00:00
Dimitry Andric
df6508c726 Merge ^/head r279995 through r280029. 2015-03-15 11:58:52 +00:00
Dimitry Andric
302cd48a04 Bump __FreeBSD_version again, and set real dates in UPDATING and 
ObsoleteFiles.inc, in preparation for the merge back to head.
 2015-03-15 11:56:43 +00:00
Alexander Motin
fdb7e97f87 Modify virtqueue helpers added in r253440 to allow queuing. 
Original virtqueue design allows queued and out-of-order processing, but
helpers added in r253440 suppose only direct blocking in-order one.
It could be fine for network, etc., but it is a huge limitation for storage
devices.
 2015-03-15 11:37:07 +00:00
Baptiste Daroussin
e509c88862 Import mdocml 1.13.3 2015-03-15 11:35:39 +00:00
Baptiste Daroussin
0ae9da150d Import mdocml 1.13.3 2015-03-15 11:28:48 +00:00
Alexander Motin
7e8e553940 Block delete capability for read-only devices. 
Submitted by:	neel
MFC after:	2 weeks
 2015-03-15 08:09:56 +00:00
Ian Lepore
e5197e3a08 Add a nulterm byte to the returned sysctl string. 
PR:		195668
 2015-03-15 00:39:18 +00:00
Ian Lepore
657282e062 Include the nulterm byte in the sysctl string. 
PR:		195668
 2015-03-15 00:36:08 +00:00
Ian Lepore
dcdeb95f09 Go back to using sbuf_new() with a preallocated large buffer, to avoid 
triggering an sbuf auto-drain copyout while holding a lock.

Pointed out by:	   jhb
Pointy hat: 	   ian
 2015-03-14 23:57:33 +00:00
Ian Lepore
2a6a72f113 Use sbuf_printf() for sysctl strings instead of static buffers and snprintf. 2015-03-14 23:30:03 +00:00
Ian Lepore
91d9eda200 Use sbuf_printf() for sysctl strings instead of stack buffers and snprintf(). 2015-03-14 23:16:12 +00:00
Ian Lepore
6ec9891291 Use sysctl_handle_string() and the sbuf printf routines instead of large 
stack-allocated buffers and snprintf().

PR:		195668
 2015-03-14 22:32:15 +00:00
Ian Lepore
6ef6968de5 Use SYSCTL_OUT_STR() to return strings. 
PR:		195668
 2015-03-14 21:41:00 +00:00
Ian Lepore
c38c26f8da Use SYSCTL_OUT_STR() to return strings. 
PR:		195668
 2015-03-14 21:40:51 +00:00
Ian Lepore
8ddeeebf4b Use SYSCTL_OUT_STR() to return strings. 
PR:		195668
 2015-03-14 21:40:33 +00:00
Ian Lepore
d711ee2c29 Use SYSCTL_OUT_STR() to return strings. 
PR:		195668
 2015-03-14 21:40:24 +00:00
Ian Lepore
acfc962f82 Use SYSCTL_OUT_STR() to return strings. 
PR:		195668
 2015-03-14 21:40:01 +00:00
Ian Lepore
8a0d2c613b Define a convenience macro, SYSCTL_OUT_STR() for handling strings the 
standard way (including the nulterm byte in the data returned to userland).

This augments the existing sysctl_handle_string() in that this can be used
with const strings without ugly inappropriate casting.
 2015-03-14 21:38:51 +00:00
Alexander Motin
79565afed8 Give block I/O interface multiple (8) execution threads. 
On parallel random I/O this allows better utilize wide storage pools.
To not confuse prefetcher on linear I/O, consecutive requests are executed
sequentially, following the same logic as was earlier implemented in CTL.

Benchmarks of virtual AHCI disk, backed by ZVOL on RAID10 pool of 4 HDDs,
show ~3.5 times random read performance improvements, while no degradation
on linear I/O.

MFC after:	2 weeks
 2015-03-14 21:15:45 +00:00
Dimitry Andric
07f4251006 Regenerated llvm/clang manpages. 2015-03-14 19:22:15 +00:00
Ian Lepore
b773372938 Use sbuf_new_for_sysctl() instead of plain sbuf_new() to ensure sysctl 
string returned to userland is nulterminated.

PR:           195668
 2015-03-14 18:46:33 +00:00
Ian Lepore
b97fa22cd6 Use sbuf_new_for_sysctl() instead of plain sbuf_new() to ensure sysctl 
string returned to userland is nulterminated.

PR:           195668
 2015-03-14 18:42:30 +00:00
Dimitry Andric
fa77b333f3 For now, disable the __clear_cache implementation for mips in 
compiler-rt, since we do not yet have the required syscall.
 2015-03-14 18:38:07 +00:00
Ian Lepore
751ccc429d Use sbuf_new_for_sysctl() instead of plain sbuf_new() to ensure sysctl 
string returned to userland is nulterminated.

PR:		195668
 2015-03-14 18:11:24 +00:00
Steven Hartland
208264283d Allow zvol_geom_worker to process BIO_DELETE's 
If zvol_geom_start is called with a BIO_DELETE from a thread which can
sleep it queues it for later processing by the zvol_geom_worker. The
zvol_geom_worker didn't have a delete case so would simply loose the bio
hence preventing the original caller from every completing. In addition
an other unknown types would suffer the same fate.

Allow zvol_geom_worker to process BIO_DELETE's via zvol_strategy and
return unsupported for all unknown bio types.

MFC after:	2 weeks
Sponsored by:	Multiplay
 2015-03-14 17:35:04 +00:00