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the code is refactored so the IFQ macros call newly implemented ifq
functions. the ifq code is split so each discipline (priq and hfsc
in our case) is an opaque set of operations that the common ifq
code can call. the common code does the locking, accounting (ifq_len
manipulation), and freeing of the mbuf if the disciplines enqueue
function rejects it. theyre kind of like bufqs in the block layer
with their fifo and nscan disciplines.
the new api also supports atomic switching of disciplines at runtime.
the hfsc setup in pf_ioctl.c has been tweaked to build a complete
hfsc_if structure which it attaches to the send queue in a single
operation, rather than attaching to the interface up front and
building up a list of queues.
the send queue is now mutexed, which raises the expectation that
packets can be enqueued or purged on one cpu while another cpu is
dequeueing them in a driver for transmission. a lot of drivers use
IFQ_POLL to peek at an mbuf and attempt to fit it on the ring before
committing to it with a later IFQ_DEQUEUE operation. if the mbuf
gets freed in between the POLL and DEQUEUE operations, fireworks
will ensue.
to avoid this, the ifq api introduces ifq_deq_begin, ifq_deq_rollback,
and ifq_deq_commit. ifq_deq_begin allows a driver to take the ifq
mutex and get a reference to the mbuf they wish to try and tx. if
there's space, they can ifq_deq_commit it to remove the mbuf and
release the mutex. if there's no space, ifq_deq_rollback simply
releases the mutex. this api was developed to make updating the
drivers using IFQ_POLL easy, instead of having to do significant
semantic changes to avoid POLL that we cannot test on all the
hardware.
the common code has been tested pretty hard, and all the driver
modifications are straightforward except for de(4). if that breaks
it can be dealt with later.
ok mpi@ jmatthew@
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also avoid excessive tsleep()s for updates within the sensor task,
moreover this should fix some seldom seen 'comm collision' errors
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ok jung@
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some is found or not, also remove kbdled output as there is no (known) way to
test if (not) available at all
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successful, while info/type reading from same keys fails and avoids
initialization;
so check the validity flag earlier and do not try to attach invalid
(non-existing) keys
debugged with help from kettenis
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models for example macmini1,1
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ok jung@
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found in Apple Intel based devices
"go at it" deraadt@
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This changes numbers of the SIOCSIFMEDIA and SIOCGIFMEDIA ioctls and
grows struct ifmediareq.
Old ifconfig and dhclient binaries can still assign addresses, however
the 'media' subcommand stops working. Recompiling ifconfig and dhclient
with new headers before a reboot should not be necessary unless in very
special circumstances where non-default media settings must be used to
get link and console access is not available.
There may be some MD fallout but that will be cleared up later.
ok deraadt miod
with help and suggestions from several sharks attending l2k15
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pckbc0: unable to establish interrupt for irq 12pckbd0 at pckbc0 (kbd slot)
ok miod@
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which will have it depend upon wsdisplayvar.h.
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ok bluhm@, claudio@, dlg@
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don't attach the ad1848 driver. But the "malloc" method of gus_hw_if
is ad1848_malloc() which assumes a ad1848 is attached (and expect the
softc pointer to be a struct ad1848_softc, but get a gus_softc pointer
instead). Implement, the missing gus_{malloc,free,mappage,...}
routines. Add the missing mtx_{enter,leave} calls, as we're at it.
Found by mlarkin.
ok mlarkin
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functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.
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Note that pseudo-drivers not using if_input() are not affected by this
conversion.
ok mikeb@, kettenis@, claudio@, dlg@
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ok dlg@
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printed for isadma(4).
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interrupts at pckbc attach time, and get rid of the `intr_establish'
pckbc callback.
Tested on hppa (gsckbc) and sgi (pckbc@hpc); not tested on sparc64 (pckbc@ebus)
but this attachment was already behaving this way and its intr_establish
callback was an empty function.
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rather than lazily from pckbc when slots are discovered. This is consistent
with what other isa devices (and pckbc on non-isa busses) do, and as a side
effect, this makes the dmesg output shorter.
This will also let us get rid of pckbc's intr_establish() callback in a
later diff.
Prompted by krw@ noticing ugly kernel output in a configuration with the
mouse slot left empty. ok krw@ mpi@
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only allow one irq for isa devices, there is actually support for more since
we got isapnp(4) support, and upcoming changes will actually have regular isa(4)
devices claim more than one irq in their indirect match function.
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ok dlg@
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ok krw@ miod@
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i386 build. Found by Mark Patruck <mark at wrapped.cx>, thanks!
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not available to programs anyway.
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the kernel_lock), as we already do better conversions in
user-mode. Yet, no need for every single driver to fiddle with the
conversion code as they are done transparently by common MI code. With
help from armani and miod, support from mpi
ok armani@
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This line was originally an splx() before being converted to a mutex.
ok ratchov@
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with missing braces ratchov checked the specs to see the current
behaviour is correct, just poorly formatted.
ok ratchov@
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ok miod@
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have any direct symbols used. Tested for indirect use by compiling
amd64/i386/sparc64 kernels.
ok tedu@ deraadt@
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- rename uiomove() to uiomovei() and update all its users.
- introduce uiomove(), which is similar to uiomovei() but with a size_t.
- rewrite uiomovei() as an uiomove() wrapper.
ok kettenis@
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gpio pins on SuperMicro and PC Engines.)
ok kettenis@
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just remove them directly.
tested by krw@
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ok mikeb kettenis (for earlier version)
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doesn't have all the values and therefore can't be used everywhere.
ok deraadt@ kettenis@
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eliminating the must-be-kept-in-sync UVM_INH_* macros
ok deraadt@ tedu@
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NULL first, for they are not guaranteed to be allocated.
Found the hard way by Tobias Stoeckmann; ok deraadt@
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ok deraadt, tests on glxpcib and ok mpi
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from Matt Dainty.
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ok deraadt
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ok deraadt@ tedu@
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