hiren [Tue, 27 Oct 2015 09:43:05 +0000 (09:43 +0000)]
Add sysctl tunable net.inet.tcp.initcwnd_segments to specify initial congestion
window in number of segments on fly. It is set to 10 segments by default.
Remove net.inet.tcp.experimental.initcwnd10 which is now redundant. Also remove
the parent node net.inet.tcp.experimental as it's not needed anymore and also
because it was not well thought out.
bdrewery [Tue, 27 Oct 2015 01:29:38 +0000 (01:29 +0000)]
META MODE: Fix after addition of bsd.confs.mk: Stage in "files" set.
The "files" staging name is not the same as "bsd.files.mk" but seems to just be
a group of extra files that are not the essential includes or libraries, which
include .
delphij [Tue, 27 Oct 2015 01:26:50 +0000 (01:26 +0000)]
Revert r289269 for now. After looking at share/zoneinfo/Makefile this could
potentially break non-root installs and we need a better solution, probably
by doing it differently when no UI is involved.
* refactor out the rx filter and operating mode code into a separate
method.
* add some comments about what's left with setting the operating mode
based on what carl9170 does.
* comment out some init from otus_init_mac() - it's no longer needed as
it's always init'ed now.
* add debugging and a missing return around a failure to call m_get2() -
during monitor mode operation I found RXing of frames > 2k, which
fails allocation. I'm sure they're valid (it's configuring 11n RX and
receiving 11n frames even though the driver doesn't "do" 11n)
and may be A-MSDU; but allocations fail and we should handle that
gracefully.
Tested:
* UB82 reference NIC (AR9170 + AR9104 2x2 dual band NIC); STA and
monitor mode operation.
gnn [Tue, 27 Oct 2015 00:42:15 +0000 (00:42 +0000)]
Turning on IPSEC used to introduce a slight amount of performance
degradation (7%) for host host TCP connections over 10Gbps links,
even when there were no secuirty policies in place. There is no
change in performance on 1Gbps network links. Testing GENERIC vs.
GENERIC-NOIPSEC vs. GENERIC with this change shows that the new
code removes any overhead introduced by having IPSEC always in the
kernel.
delphij [Mon, 26 Oct 2015 22:29:58 +0000 (22:29 +0000)]
In gunzip(1), treat trailing garbage as a warning and not an error. This
allows scripts to distinguish it between real fatal errors, for instance a
CRC mismatch.
tuexen [Mon, 26 Oct 2015 21:19:49 +0000 (21:19 +0000)]
When processing a cookie, any mismatch in port numbers or the vtag results
in failing the check.
This fixes https://github.com/nplab/ETSI-SCTP-Conformance-Testsuite/blob/master/sctp-imh-tests/sctp-imh-i-3-3.pkt
cem [Mon, 26 Oct 2015 19:34:12 +0000 (19:34 +0000)]
ioat: Add support for Block Fill operations
The IOAT hardware supports writing a 64-bit pattern to some destination
buffer. The same limitations on buffer length apply as for copy
operations. Throughput is a bit higher (probably because fill does not
have to spend bandwidth reading from a source in memory).
Support for testing Block Fill has been added to ioatcontrol(8) and the
ioat_test device. ioatcontrol(8) accepts the '-f' flag, which tests
Block Fill. (If the flag is omitted, the tool tests copy by default.)
The '-V' flag, in conjunction with '-f', verifies that buffers are
filled in the expected pattern.
Tested on: Broadwell DE (Xeon D-1500)
Sponsored by: EMC / Isilon Storage Division
bdrewery [Mon, 26 Oct 2015 19:28:20 +0000 (19:28 +0000)]
Add a note about DEPFLAGS which is currently a hack around not properly passing
CXXFLAGS to sub-makes.
The bad passing also causes bsd.dep.mk's logic to selectively pull only some
flags from C[XX]FLAGS to not apply which can be seen with '-L' being passed to
mkdep when using an external compiler.
mav [Mon, 26 Oct 2015 18:14:15 +0000 (18:14 +0000)]
Reimplement enable and implement disable of virtual ports.
Now on 24xx and above chips it is really possible to simulate several
virtual FC ports with single physical one. For example, it allows to
configure several targets in ctl.conf, assign each of them to separate
virtual port, and let user to control access to them with switch zoning.
I still doubt that all problems are solved there, but at now it passes
at least basic tests.
allanjude [Mon, 26 Oct 2015 17:07:22 +0000 (17:07 +0000)]
Allow 'zfs holds -r' to recurse over a file system or volume to find holds
Previously, the parameters of 'zfs holds' could only be snapshots
Add -d <depth> flag to limit depth of recursion
Add -p flag to print literal values, rather than interpreted values
Add -H flag to suppress header output and use tabs rather than whitespace
cem [Mon, 26 Oct 2015 03:30:38 +0000 (03:30 +0000)]
ioat: Allocate memory for ring resize sanely
Add a new flag for DMA operations, DMA_NO_WAIT. It behaves much like
other NOWAIT flags -- if queueing an operation would sleep, abort and
return NULL instead.
When growing the internal descriptor ring, the memory allocation is
performed outside of all locks. A lock-protected flag is used to avoid
duplicated work. Threads that cannot sleep and attempt to queue
operations when the descriptor ring is full allocate a larger ring with
M_NOWAIT, or bail if that fails.
ioat_reserve_space() could become an external API if is important to
callers that they have room for a sequence of operations, or that those
operations succeed each other directly in the hardware ring.
This patch splits the internal head index (->head) from the hardware's
head-of-chain (DMACOUNT) register (->hw_head). In the future, for
simplicity's sake, we could drop the 'ring' array entirely and just use
a linked list (with head and tail pointers rather than indices).
zbb [Sun, 25 Oct 2015 23:22:40 +0000 (23:22 +0000)]
Add support for unspecified ranges on ThunderX system
When one tries to allocate a resource with unspecified range,
read already configured BAR values (by UEFI or whatever).
This is necessary to make VNIC VFs working and to allow them to be
properly allocated.
Obtained from: Semihalf
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D3752
zbb [Sun, 25 Oct 2015 22:14:04 +0000 (22:14 +0000)]
Introduce e6000sw etherswitch support
Add e6000sw driver supporting Marvell 88E6352, 88E6172, 88E6176 switches.
It needs to be attached to mdio interface, exporting SMI access
functionality. e6000sw supports port-based VLAN configuration, per-port
media changing, accessing PHY and switch registers.
e6000sw attaches miibuses and PHY drivers as children. Instead of typical
tick as callout, kthread-based tick is used. This combined with SX locks
allows MDIO read/write calls to sleep. It is expected, because this
hardware requires long delays in SMI read/write procedures, which can not
be handled by busy-waiting.
zbb [Sun, 25 Oct 2015 22:00:56 +0000 (22:00 +0000)]
Add etherswitch support to mge
This commit introduces support for etherswitch devices that utilize SMI as
a way of accessing its registers. SMI register is located in address space
of mge -- access to it was exported through MDIO interface.
Attachment functions were enhanced so as to ensure proper initialisation
in both cases: 1) PHYs attached directly to mge, 2) PHYs attached to
switch device and switch attached to mge. Attachment of etherswitch device
depends on dts entry with compatible="mrvl,sw" property. If none is found,
typical PHY attachment procedure follows.
In case of switch attached, PHYs' status and configuration is accessible
via etherswitchcfg, and ifconfig shows always-up, non-configurable mge
interfaces.
Due to the fact that there may be simultaneous accessess to SMI
registers (e.g. from PHY attached to one of mge instances and switch
to the other), SMI access interlock was added. It is SX lock,
because sleep ability is necessary -- busy-waiting would result
in poor performance due to long delays required by hardware.
Underlying switch driver is obliged to use sleepable locks as well.
pjd [Sun, 25 Oct 2015 18:48:09 +0000 (18:48 +0000)]
The aio_waitcomplete(2) syscall should not sleep when the given timeout
is 0. Without this change it was sleeping for one tick. Maybe not a big
deal, but it makes share/dtrace/blocking script to report that.
theraven [Sun, 25 Oct 2015 14:52:16 +0000 (14:52 +0000)]
Lots of improvements to the BSD-licensed dtc
- Various fixes to includes (including recursive includes)
- Lots of testing that the output exactly matches GPL'd dtc
- Lots of bug fixes to merging
- Fix incorrect mmap usage
- Ad-hoc memory management replaced with C++11 unique_ptr and similar
Patrick Wildt has successfully run many (all?) of the GPL dtc test suite.
kp [Sun, 25 Oct 2015 13:14:53 +0000 (13:14 +0000)]
PF_ANEQ() macro will in most situations returns TRUE comparing two identical
IPv4 packets (when it should return FALSE). It happens because PF_ANEQ() doesn't
stop if first 32 bits of IPv4 packets are equal and starts to check next 3*32
bits (like for IPv6 packet). Those bits containt some garbage and in result
PF_ANEQ() wrongly returns TRUE.
Fix: Check if packet is of AF_INET type and if it is then compare only first 32
bits of data.
ngie [Sun, 25 Oct 2015 07:42:56 +0000 (07:42 +0000)]
Fix compiling with gcc [4.2.1] after r287797 when MK_HESOID == no and
MK_NIS == no by converting `i` back to an int, and instead cast the loop
comparison to `int`
The loop comparison is iterating the len(ns_dtab)-1, because
the last element is the sentinel tuple { NULL, NULL, NULL, }, so when
both HESOID and NIS are off, len(ns_dtab)-1 == 1 - 1 == 0, and the loop
is skipped because the expression is tautologically false
While here, convert `(sizeof(x) / sizeof(x[0]))` to `nitems(x)`
Tested with: clang 3.7.0, gcc 4.2.1, and gcc 4.9.4 [*] with MK_NIS={no,yes}
and by running bash -lc 'id -u && id -g && id'
* gcc 4.9.4 needs another patch in order for the compile to succeed
with -Werror with lib/libc/gen/getgrent.c
ngie [Sun, 25 Oct 2015 04:37:00 +0000 (04:37 +0000)]
Limit RESOLUTION_MAX to INT_MAX, not UINT_MAX (all spelled out) so the
mode value isn't always clipped to -1 when (resolution * size) == 32, which
would have been the case with values => {4i,32b,32t}.
ngie [Sun, 25 Oct 2015 04:04:25 +0000 (04:04 +0000)]
Use 't' (bit-field) not 'b' (bit-sized integral type) for describing MRIE (aka
"Method of Reporting Informational Exceptions") in the SCSI mode database.
T10/04-371 revision 2 (revision 4; page 2, table 1) describes it as a
bit-field of 4 bits wide.
This a recommit of head@r289913 to fix the original commit message, in
particular:
- I incorrectly claimed that unit change was 'i' -> 't'.
- The spec I reference in this commit is 2 decades newer than the one noted in
r289913. The fields in the SCSI mode database are more complete in the newer
spec, so it'll be easier for someone to decipher this commit if need be
later.
- I screwed up the bug entry in the previous commit message
Pointyhat to: ngie (for botching up r289913)
PR: 200619
Reported by: Michael Baptist
Submitted by: Lars Skodje
Sponsored by: EMC / Isilon Storage Divisionf
ngie [Sun, 25 Oct 2015 03:16:08 +0000 (03:16 +0000)]
Use 't' (bits) not 'i' (bytes) for describing MRIE (aka
"Method of Reporting Informational Exceptions") in the SCSI mode database as
the field described in X3T10/94-190 (revision 4; page 2, table 1) [1.] is
4 bits wide, not 4 bytes wide
cem [Sat, 24 Oct 2015 23:44:58 +0000 (23:44 +0000)]
ioat: Pull out timer callout delay into a constant
Pull out the timer callout delay into IOAT_INTR_TIMO and shorten it
considerably (5s -> 100ms). Single operations do not take 5-10 seconds
and when interrupts aren't working, waiting 100ms sucks a lot less than
5s.
adrian [Sat, 24 Oct 2015 22:37:59 +0000 (22:37 +0000)]
arge(4): flip this on for AR9344 SoCs.
I couldn't test arge0->arge1 bridging, only arge0 VLAN bridging.
The DIR-825C1 only hooks up arge0 to the switch GMAC0 and so
you need to abuse VLANs to test.
ngie [Sat, 24 Oct 2015 22:12:23 +0000 (22:12 +0000)]
Add more cd9660/FFS makefs testcases
General changes:
- Parameterize out the mount command.
- Use mtree to verify the contents of an image (check_image_contents) instead
of using diff (diff verifies content, but not file metadata).
- Move common logic out to functions (common_cleanup, mount_image,
check_image_contents)
- Add stub testcases for makefs -D (crashes with SIGBUS, similar to bug # 192839)
- Add a note about the ISO-9660 and rockridge specs
- Add testcases that exercise:
-- Creating disk images from an mtree and multiple directories.
-- -F flag use (not really an extensive testcase right now)
cd9660-specific test changes:
- Remove an XXX comment about symlinks; I forgot that non-rockridge images turn
symlinks into hardlinks.
- Add testcases that exercise:
-- -o allow-deep-trees
-- -o allow-max-name stub testcase (doesn't seem to be implemented in makefs)
-- -o preparer (existence in image; not conformance to spec)
-- -o publisher (existence in image; not conformance to spec)
-- -o rockridge (basic)
ngie [Sat, 24 Oct 2015 21:59:58 +0000 (21:59 +0000)]
Make vers.c creation atomic by using a temporary file, then moving
the temporary file to vers.c at the end of the script
The previous logic wrote out to vers.c multiple times, so the file
could be incorrectly interpreted as being completely written out
after one of the echo calls with recursive make, when in reality it
was only partially written.
Also, in the event the build was interrupted when creating vers.c
(small race window), it would have a leftover file that needed to
be cleaned up before resuming the build.
kib [Sat, 24 Oct 2015 21:59:22 +0000 (21:59 +0000)]
Reduce the amount of calls to VOP_BMAP() made from the local vnode
pager. It is enough to execute VOP_BMAP() once to obtain both the
disk block address for the requested page, and the before/after limits
for the contiguous run. The clipping of the vm_page_t array passed to
the vnode_pager_generic_getpages() and the disk address for the first
page in the clipped array can be deduced from the call results.
While there, remove some noise (like if (1) {...}) and adjust nearby
code.
Reviewed by: alc
Discussed with: glebius
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 3 weeks
kib [Sat, 24 Oct 2015 21:37:47 +0000 (21:37 +0000)]
Intel SDM before revision 56 described the CLFLUSH instruction as only
ordered with the MFENCE instruction. Similar weak guarantees are also
specified by the AMD APM vol. 3 rev. 3.22. x86 pmap methods
pmap_invalidate_cache_range() and pmap_invalidate_cache_pages() braced
CLFLUSH loop with MFENCE both before and after the loop.
In the revision 56 of SDM, Intel stated that all existing
implementations of CLFLUSH are strict, CLFLUSH instructions execution
is ordered WRT other CLFLUSH and writes. Also, the strict behaviour
is made architectural.
A new instruction CLFLUSHOPT (which was documented for some time in
the Instruction Set Extensions Programming Reference) provides the
weak behaviour which was previously attributed to CLFLUSH.
Use CLFLUSHOPT when available. When CLFLUSH is used on Intel CPUs, do
not execute MFENCE before and after the flushing loop.
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
ian [Sat, 24 Oct 2015 21:25:53 +0000 (21:25 +0000)]
Provide armv4/v5 implementations of several of the armv6 cache maintenance
functions. This will make it possible to use the same busdma code for all
arm platforms v4 thru v7.
ian [Sat, 24 Oct 2015 19:39:41 +0000 (19:39 +0000)]
Rename dcache_dma_preread() to dcache_inv_poc_dma() to make it clear that it
is a dcache invalidate to point of coherency just like dcache_inv_poc(), but
a slightly different version specific to dma operations. Elaborate the
comment about how and why it's different.
mav [Sat, 24 Oct 2015 17:34:40 +0000 (17:34 +0000)]
Add PIM_EXTLUNS support to isp(4) driver.
Now 24xx and above chips support full 8-byte LUN address space.
Older FC chips may support up to 16K LUNs when firmware allows.
Tested in both initiator and target modes for 23xx, 24xx and 25xx.
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