The MDIO bus frequency is configured as a divisor off of the MDIO bus
reference clock. For the AR9344 and later, the MDIO bus frequency can
be faster than normal (ie, up to 100MHz) and thus a static divisor may
not be very applicable.
So, for those boards that may require an actual frequency to be selected
regardless of what crazy stuff the vendor throws in uboot, one can now
set the MDIO bus frequency. It uses the MDIO frequency and the target
frequency to choose a divisor that doesn't exceed the target frequency.
By default it will choose:
* DIV_28 on everything; except
* DIV_58 on the AR9344 to be conservative.
Whilst I'm here, add some comments about the defaults being not quite
right. For the other internal switch devices (like the AR933x, AR724x)
the divisor can be higher - it's internal and the reference MDIO clock
is much lower than 100MHz.
The divisor tables and loop code is inspired from Linux/OpenWRT. It's very
simple; I didn't feel that reimplementing it would yield a substantially
different solution.
Tested:
* AR9331 (mips24k)
* AR9344 (mips74k)
Obtained from: Linux/OpenWRT
directories last.
This is generally handled by the fact that the list of filesystem objects
is sorted, but this sorting is broken by code which moves .so files ahead
(so that they're present before any binaries which use them)... that code
also moved .so files ahead of directories, which is a problem for upgrading
to 10.0 where there's a new directory containing new .so files.
Errata Notice Candidate.
'invpcid' instruction to the guest. Currently bhyve will try to enable this
capability unconditionally if it is available.
Consolidate code in bhyve to set the capabilities so it is no longer
duplicated in BSP and AP bringup.
Add a sysctl 'vm.pmap.invpcid_works' to display whether the 'invpcid'
instruction is available.
Reviewed by: grehan
MFC after: 3 days
runtime by the dynamic linker, check for their equality in libcxxrt by
not only comparing the typeinfo's name pointers, but also comparing the
full names, if necessary. (This is similar to what GNU libstdc++ does
in its default configuration.) The 'deep' check can be turned off again
by defining LIBCXXRT_MERGED_TYPEINFO, and recompiling libcxxrt.
Reviewed by: theraven
MFC after: 3 days
correctly by doing nothing, then add a panic for the default case, because
that implies that some driver asked for a sync (probably incorrectly) and
nothing was done.
Usual symptoms are messages like
rn_delete: inconsistent annotation
rn_addmask: mask impossibly already in tree
or inability to flush/delete particular prefix in ipfw table.
Changes:
* Assume 32 bytes as maximum radix key length
* Remove rn_init()
* Statically allocate rn_ones/rn_zeroes
* Make separate mask tree for each "normal" tree instead of system global one
* Remove "optimization" on masks reusage and key zeroying
* Change rn_addmask() arguments to accept tree pointer (no users in base)
PR: kern/182851, kern/169206, kern/135476, kern/134531
Found by: Slawa Olhovchenkov <slw@zxy.spb.ru>
MFC after: 2 weeks
Reviewed by: glebius
Sponsored by: Yandex LLC
- Take BIO lock in biodone() only when there is no completion callback set
and so we should wake up thread waiting in biowait().
- Remove msleep() timeout from biowait(). It was added 11 years ago, when
there was no locks used, and it should not be needed any more.
Move tq_enqueue() call out of the queue lock for known handlers (actually
I have found no others in the base system). This reduces queue lock hold
time and congestion spinning under active multithreaded enqueuing.
Introduce new function devstat_end_transaction_bio_bt(), adding new argument
to specify present time. Use this function to move binuptime() out of lock,
substantially reducing lock congestion when slow timecounter is used.
forking lots of processes to run echo|cut. In one test this reduced
the CPU time from 980s to 134s and the wallclock time from 806s to
132s.
Submitted by: Oleg Ginzburg
we can now add all the hardware bits for the DB120.
* arge0/argemdio0 is hooked up to an AR8327 switch - which there's currently
no support for. However, the bootloader on this board does set it up as
a basic switch so we can at least _use_ it ourselves.
So we should at least configure the arge0 side of things, including the GMAC
register.
* .. the GMAC config peels off arge0 from the internal switch and exposes it
as an RGMII to said AR8327.
* arge1/argemdio1 are hooked up to an internal 10/100 switch. So, that also
needs configuring.
* Add support for the NOR flash layout.
* Add support for the wifi (which works, with bugs, but it works.)
What's missing!
* No GPIO stuff yet!
* No sound (I2S) and no NAND flash support yet, sorry!
* The normal DB120 has an external AR95xx wifi chip on PCIe but with the
actual calibration data in the NOR flash. My DB120 has been modified
to let me use the PCIe slot as a normal PCIe slot. I'll add the "default"
settings later when I have access to a non-modified one.
* Other stuff, like why the wifi unit gets upset and spits out stuck beacons
and interrupt storms everywhere. Sigh.
Tested:
* DB120 board - AR9344 (mips74k SoC) booting off of SPI flash into multi-user
mode.
* Do the hardware setup in the right order!
* Modify/improve the chip probe check so it can actually
probe the 7240/9340 directly (although it's not yet used..)
* Initialise and fetch the is_mii option
* Fix some debugging whilst I'm here.
This is enough to get things off the ground.
Tested:
* AR9344 SoC
* Add an AR9340 switch version entry;
* Support the switch being connected via MII;
* Add a flag to note that a switch is actually an internal
switch rather than an external switch.
Now:
* The ar9340 switch can interconnect via MII;
* Since some slightly different phy/switch register access methods
and quirks appear for the internal versus external switch,
we will need a flag to mark it as an "internal" switch.
Tested:
* AR9344 (internal switch)
* AR9331 (internal switch)
TODO:
* Test the AR8316 switch!
This is just the chip initialisation code (for now.)
It's not linked into the main build as it requires a bunch of other code
to be tidied up and committed. But it indeed does function as advertised.
Tested:
* AR9344 SoC
up and running.
* The MAC FIFO configurations needed updating;
* Reset the MDIO block at the same time the MAC block is reset;
* The default divisor needs changing as the DB120 runs at a higher
base MDIO bus clock compared to other chips.
The long-term fix is to allow the system to have a target MDIO bus
clock rate and then calculate the most suitable divider to meet
that. This will likely need implementing before stable external
PHY or switch support can be committed.
Tested:
* AR9344 (mips74k)
* AR9331 (mips24k)
Without correct barriers, this code just plain doesn't work on the
mips74k cores (specifically the AR9344.)
In particular, the MDIO register accesses need this barriering or MII bus
access results in out-of-order garbage.
Tested:
* AR9344 (mips74k)
* AR9331 (mips24k)
This is required for correct, stable operation on the MIPS74k SoCs
that are dual-issue, superscalar pipelines.
Tested:
* AR9344 SoC (MIPS74k)
* AR9331 SoC (MIPS24k)
null-separated strings to a single string. This can be used to print the
full arguments of a process using execsnoop (from the DTrace toolkit) or
with the following one-liner:
dtrace -n 'syscall::execve:return {trace(curpsinfo->pr_psargs);}'
Note that this relies on the process arguments being cached via the struct
proc, which means that it will not work for argvs longer than
kern.ps_arg_cache_limit. However, the following rather non-portable
script can be used to extract any argv at exec time:
fbt::kern_execve:entry
{
printf("%s", memstr(args[1]->begin_argv, ' ',
args[1]->begin_envv - args[1]->begin_argv));
}
The debug.dtrace.memstr_max sysctl limits the maximum argument size to
memstr(). Thanks to Brendan Gregg for helpful comments on freebsd-dtrace.
Tested by: Fabian Keil (earlier version)
MFC after: 2 weeks
the 'vmmdev_mtx' in vmmdev_rw().
Rely on the 'si_threadcount' accounting to ensure that we never destroy the
VM device node while it has operations in progress (e.g. ioctl, mmap etc).
Reported by: grehan
Reviewed by: grehan
Things like Makefile.inc1 resort to parsing /usr/include/osreldate.h with
awk because this isn't easily available by other means. The separation
of user and kernel versions is important for jail/chroot environments.
section. This prevents a boot crash on nearly all iMacs and PowerMacs/Books.
The allocation in the probe section was working before because ata_probe was
returning 0 which did not invoke a second DEVICE_PROBE. Now it returns
a BUS_PROBE_DEFAULT which can invoke a second DEVICE_PROBE which results in
a "failed to reserve resource" exit.
PR: powerpc/182978
Discussed with: grehan@
MFC after: 1 Week
and OpenSolaris/Illumos beadm use.
Remove /usr/local and /var/db/pkg datasets. Andriy Gapon writes:
I want to note that a good implementation of BEs should support a dependent
datasets feature. Unfortunately, it seems that we do not have any good BE
implementation for FreeBSD right now. If we had, personally I'd prefer to
have /usr/local in separate filesystem.
NOTE: Until then, remove these datasets.
Discussed on: src-committers
Submitted by: Bryan Drewery <bryan@shatow.net>
Reviewed by: Allan Jude <freebsd@allanjude.com>
MFC after: 3 days
