hselasky [Tue, 21 Nov 2017 13:56:30 +0000 (13:56 +0000)]
Make sure all initialized mutexes are destroyed in the iser module,
else WITNESS will panic. Prefix all mutex names with "iser_" to
prevent future WITNESS issues.
andrew [Tue, 21 Nov 2017 13:19:38 +0000 (13:19 +0000)]
When fpcurthread is not the current thread it may be non-NULL. In this
case another thread has had the VFP unit enabled and will have its state
in the VFP registers along with it stored in memory. As such we don't need
to store the state, but do need to zero the fpcurthread pointer to stop
the VFP driver from using the enable fast path.
markj [Tue, 21 Nov 2017 13:17:40 +0000 (13:17 +0000)]
Allow for fictitious physical pages in vm_page_scan_contig().
Some drm2 drivers will set PG_FICTITIOUS in physical pages in order to
satisfy the OBJT_MGTDEVICE object interface, so a scan may encounter
fictitous pages. For now, allow for this possibility; such pages will be
skipped later in the scan since they are wired.
imp [Tue, 21 Nov 2017 07:35:29 +0000 (07:35 +0000)]
This program is more useful if it skips leading whitespace when
parsing a textual UEFI Device Path, since otherwise it things the
passed in path is a filename. While here, reduce the repetition of
8192.
imp [Tue, 21 Nov 2017 06:12:21 +0000 (06:12 +0000)]
While the EFI spec allows numbers to be in many forms, libefivar
produces hex numbers for the dsn. Since that come is from EDK2, change
this for symmetry, by generating the dsn as a hex number.
jhibbits [Tue, 21 Nov 2017 03:12:16 +0000 (03:12 +0000)]
Check the page table before TLB1 in pmap_kextract()
The vast majority of pmap_kextract() calls are looking for a physical memory
address, not a device address. By checking the page table first this saves
the formerly inevitable 64 (on e500mc and derivatives) iteration loop
through TLB1 in the most common cases.
Benchmarking this on the P5020 (e5500 core) yields a 300% throughput
improvement on dtsec(4) (115Mbit/s -> 460Mbit/s) measured with iperf.
Benchmarked on the P1022 (e500v2 core, 16 TLB1 entries) yields a 50%
throughput improvement on tsec(4) (~93Mbit/s -> 165Mbit/s) measured with
iperf.
landonf [Tue, 21 Nov 2017 01:54:48 +0000 (01:54 +0000)]
Preemptively map MIPS INTRNG interrupts on non-FDT MIPS targets
This replaces a partial workaround introduced in r305527 that was
incompatible with nested INTRNG interrupt controllers if not also using
FDT.
On non-FDT MIPS INTRNG targets, we now preemptively produce a set of fixed
mappings for the MIPS IRQ range during nexus attach. On FDT targets,
OFW_BUS_MAP_INTR() remains responsible for mapping the MIPS IRQs.
Approved by: adrian (mentor)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D12385
asomers [Mon, 20 Nov 2017 23:51:51 +0000 (23:51 +0000)]
periodic: fix exit status for nonexistent arguments
When called with an absolute pathname, periodic should attempt to execute
every script in that directory. If the directory does not exist, it should
print an error and exit 1. Due to a copy/paste mistake in r231568, it exits
0 in that case.
imp [Mon, 20 Nov 2017 22:42:21 +0000 (22:42 +0000)]
Move some more common stuff up to Makefile.inc. In particular, the no
simd / no float stuff is centeralized here. Also centralise
-ffreestanding since it is specified everywhere.
This, along with a change to share/mk/bsd.cpu.mk to include -mno-avx2
in CFLAGS_NO_SIMD should fix building for newer machines (eg with
CPUTYPE=haswell) where clang was generating avx2 instructions.
sys/cam/scsi/scsi_da.c
Complete BIO_FLUSH commands immediately if the da(4) device hasn't
been written to since the last flush. If we haven't written to the
device, there is no reason to send a flush.
asomers [Mon, 20 Nov 2017 22:01:45 +0000 (22:01 +0000)]
Fix multiple bugs in cam_strmatch
* Wrongly matches strings that are shorter than the pattern
* Fails to match negative character sets
* Fails to match character sets that aren't at the end of the pattern
* Fails to match character ranges
shurd [Mon, 20 Nov 2017 21:57:04 +0000 (21:57 +0000)]
Fix off-by-one error in bit_nclear() usage
bit_nclear() takes the bit numbers for the start and end bits, not the start
and a count. This was resulting in memory corruption past the end of the
bitstr_t.
asomers [Mon, 20 Nov 2017 21:56:25 +0000 (21:56 +0000)]
Print ZAC device type in "camcontrol identify" output
ZAC (Zoned-device ATA Command set) is the standard for addressing SMR
(shingled magnetic recording) devices over SATA. Drives indicate their
support for ZAC in their IDENTIFY block. Print whether and how a drive
supports ZAC in the output of "camcontrol identify".
cem [Mon, 20 Nov 2017 21:38:24 +0000 (21:38 +0000)]
msdosfs(5): Reflect READONLY attribute in file mode
Msdosfs allows setting READONLY by clearing the owner write bit of the file
mode. (While here, correct the misspelling of S_IWUSR as VWRITE. No
functional change.)
In msdosfs_getattr, intuitively reflect that READONLY attribute to userspace
in the file mode.
Reported by: Karl Denninger <karl AT denninger.net>
Sponsored by: Dell EMC Isilon
emaste [Mon, 20 Nov 2017 20:55:41 +0000 (20:55 +0000)]
Install strings unconditionally
Previously it was enabled by WITH_/WITHOUT_TOOLCHAIN, but it is commonly
expected to be available and may have non-toolchain consumers. As it
is now taken from the BSD-licensed ELF Tool Chain project, just install
it unconditionally.
PR: 213665, 223725
Reviewed by: bdrewery
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D8398
pfg [Mon, 20 Nov 2017 19:49:47 +0000 (19:49 +0000)]
General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
pfg [Mon, 20 Nov 2017 19:45:28 +0000 (19:45 +0000)]
include: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
pfg [Mon, 20 Nov 2017 19:43:44 +0000 (19:43 +0000)]
sys: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
pfg [Mon, 20 Nov 2017 19:36:21 +0000 (19:36 +0000)]
sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
jhibbits [Mon, 20 Nov 2017 04:32:01 +0000 (04:32 +0000)]
Eliminate 1 XX_VirtToPhys() and 2 XX_PhysToVirt() calls from if_dtsec(4)
XX_VirtToPhys(), by way of pmap_kextract(), is an expensive operation.
Profiling via dtrace during a series of iperf tests I found 16111 / 30432
stack frames were located in mmu_booke_kextract(), so eliminating this
expensive call should improve performance slightly. XX_PhysToVirt() is not
as expensive, but redundant calls in this context is wasteful.
kevans [Sun, 19 Nov 2017 03:14:10 +0000 (03:14 +0000)]
aw_nmi: add support for a31/a83t's r_intc
We currently support the a83t's r_intc in a somewhat hack-ish way; our .dts
describes it as nmi_intc, and uses a subset of the actual register space to
make it line up with a20/a31 nmi offsets.
This breaks with the recent 4.14 update describing r_intc using the full
register space, so update aw_nmi to use the correct register offsets with
the right compat data in a way that doesn't break our current dts with
nmi_intc or upstream with r_intc described.
Reviewed by: manu
Approved by: emaste (mentor)
Differential Revision: https://reviews.freebsd.org/D13122
manu [Sat, 18 Nov 2017 21:12:06 +0000 (21:12 +0000)]
if_awg: drain tx buffers and clear rx buffers when stopping
Stale packets should not be transmitted when the interface comes up after being down.
Count the successfully transmitted ones for statistics and drop the rest.
Submitted by: Guy Yur <guyyur@gmail.com>
Differential Revision: https://reviews.freebsd.org/D12539
manu [Sat, 18 Nov 2017 21:08:18 +0000 (21:08 +0000)]
if_awg: avoid hole in the rx ring buffer when mbuf allocation fails
Use a spare dma map when attempting to map a new mbuf on the rx path.
If the mbuf allocation fails or the dma map loading for the new mbuf fails just reuse the old mbuf
and increase the drop counter.
Submitted by: Guy Yur <guyyur@gmail.com>
Differential Revision: https://reviews.freebsd.org/D12538
manu [Sat, 18 Nov 2017 21:04:39 +0000 (21:04 +0000)]
if_awg: rename tx functions to match other drivers and free mbuf on m_collapse failure
- use awg_encap and awg_txeof names to match iflib and other network drivers.
- handle m_collapse failure similarly by freeing the mbuf rather than reenqueuing it where it will continue to fail.
Submitted by: Guy Yur <guyyur@gmail.com>
Differential Revision: https://reviews.freebsd.org/D13035
manu [Sat, 18 Nov 2017 20:46:31 +0000 (20:46 +0000)]
if_awg: store mbuf and dma mapping in the last segment of a tx frame instead of the first
According to the datasheet, TX_DESC_CTL is cleared when whole frame is transmitted or all
data in the current descriptor's buffer are transmitted.
When the mbuf and mapping are stored in the first segment and in a scenario where a tx
completion interrupt arrives for a frame and only the start of the next frame was transmitted,
at the time of interrupt processing the mbuf and mapping will be freed when processing the
first segment of the next frame but the other untrasmitted segments still need to use them.
Submitted by: Guy Yur <guyyur@gmail.com>
Differential Revision: https://reviews.freebsd.org/D13031
manu [Sat, 18 Nov 2017 20:42:48 +0000 (20:42 +0000)]
if_awg: mark the first tx descriptor as ready only after all the other tx descriptors are set up
In a multi segment frame, if the first tx descriptor is marked with TX_DESC_CTL
but not all tx descriptors for the other segments in the frame are set up,
the TX DMA may transmit an incomplete frame.
To prevent this, set TX_DESC_CTL for the first tx descriptor only when done
with all the other segments.
Also, don't bother cleaning transmitted tx descriptors since TX_DESC_CTL
is cleared for them by the hardware and they will be reprogrammed before
TX_DESC_CTL is reenabled for them.
Submitted by: Guy Yur <guyyur@gmail.com>
Differential Revision: https://reviews.freebsd.org/D13030
bdrewery [Sat, 18 Nov 2017 20:01:15 +0000 (20:01 +0000)]
Fix top-level targets with read-only OBJDIR.
This also makes it so that top-level build targets do not immediately create
the OBJDIR. Only sub-make targets will do so. This avoids creating object
directories for targets like 'make check-old' or creating unneeded
MACHINE.MACHINE_ARCH directories during 'make tinderbox'.
bdrewery [Sat, 18 Nov 2017 20:01:09 +0000 (20:01 +0000)]
Include Makefile.sys.inc if possible for top-level only.
This will allow disabling some things like AUTO_OBJ early if not needed for the
directory/targets, without putting special logic into share/mk/*.sys.mk.
pfg [Sat, 18 Nov 2017 14:26:50 +0000 (14:26 +0000)]
spdx: initial adoption of licensing ID tags.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
Initially, only tag files that use BSD 4-Clause "Original" license.
trasz [Sat, 18 Nov 2017 13:21:22 +0000 (13:21 +0000)]
Increase rtld initial memory pool size from 32kB to 128kB.
The old value was probably fine back in 1998, when that code was imported
(although the comments still mention VAX, which was quite obsolete by then);
now, however, it's too small to handle our libc, which results in some
additional calls to munmap/mmap later on. Asking for more virtual address
space is virtually free, and syscalls are not, thus the change.
It was suggested by kib@ that this might be a symptom of a deeper problem.
It doesn't only affect libc, though - the change also improves rtld memory
management for eg KDE libraries. I guess it's just a natural bloat.
ae [Fri, 17 Nov 2017 23:25:06 +0000 (23:25 +0000)]
Add comment for accidentally committed unrelated change in r325960.
Do not invoke IPv4 NAT handler for non IPv4 packets. Libalias expects
a packet is IPv4. And in case when it is IPv6, it just translates them
as IPv4. This leads to corruption and in some cases to panics.
In particular a panic can happen when value of ip6_plen modified to
something that leads to IP fragmentation, but actual packet length does
not match the IP length.
Packets that are not IPv4 will be dropped by NAT rule.
Reported by: Viktor Dukhovni <freebsd at dukhovni dot org>
MFC after: 1 week
bdrewery [Fri, 17 Nov 2017 18:34:14 +0000 (18:34 +0000)]
Fix 'local' to not look in the source tree for the file.
Usually 'local' is used along with other rules such as 'no-implicit-rule' or
'dependency' which avoids this problem. It's possible to need to use 'local'
while relying on the default rules though for a file which is not in the source
tree nor generated in the kernel.
asomers [Fri, 17 Nov 2017 17:13:00 +0000 (17:13 +0000)]
Fix potential NULL pointer dereference of device physical path
In scsi_dev_advinfo(), if the physical path is being stored and there is a
malloc failure (malloc(9) is called with M_NOWAIT), we could wind up in a
situation where the device's physpath_len is set to the length the user
provided, but the physpath itself is NULL.
If another context then comes in to fetch the physical path value, we would
wind up trying to memcpy a NULL pointer into the caller's buffer.
So, set the physpath_len to 0 when we free the physpath on entry into the
store case for the physical path. Reset the length to a non-zero value only
after we've successfully malloced a buffer to hold it.
jhibbits [Fri, 17 Nov 2017 04:10:52 +0000 (04:10 +0000)]
Stop special casing 32-bit AIM in memory parsing
There's no need to special case 32-bit AIM to short circuit processing.
Some AIM CPUs can handle 36 bit addresses, and 64-bit CPUs can run 32-bit
OSes, so this will allow us to expand for that in the future if we desire.
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