And create cpu to channel map at device attach time for storvsc(4).
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7229
The 11n duration calculation function in net80211 and the HAL round /up/
the duration calculation for short-gi, so we can't use that.
The 11n duration calculation doesn't know about the extra symbol time
needed for STBC, nor the LDPC encoding duration, so we can't use
that.
This (along with other, local hacks) allow the locationing services to
get down to around 200nS (yes, nanoseconds) of variance when speaking
to a "good" AP.
Tested:
* AR9380, STA mode, local locationing frame hacks
In particular for me this fixes checksum problem when if_bridge attached
to the interface requests TXCSUM to be disabled, but effectively ignored.
MFC after: 3 days
Sponsored by: iXsystems, Inc.
- add new rman for prefetchable memory. Is used only if given 'ranges'
property contains prefetchable memory range.
- not all ranges in 'ranges' property are subject for rman's filling.
Tegra for example, have two addition records which are used for
'pci 'register' -> 'assigned-address' -> 'ranges' machinery.
Add sc_ranges_mask for masking not rman related ranges.
- consistently pass unknown (not managed at this level) resources
allocation/release/adjust requests to parent.
MFC after: 3 weeks
This is probably a NOP change since IS register is not activery used for
interrupts below the shared, but it looked odd to clear interrupts we did
not handle.
The pre-11n calculations include SIFS, but the 11n ones don't.
The reason is that (mostly) the 11n hardware is doing the SIFS calculation
for us but the pre-11n hardware isn't. This means that we're over-shooting
the times in the duration field for non-11n frames on 11n hardware, which
is OK, if not a little inefficient.
Now, this is all fine for what the hardware needs for doing duration math
for ACK, RTS/CTS, frame length, etc, but it isn't useful for doing PHY
duration calculations. Ie, given a frame to TX and its timestamp, what
would the end of the actual transmission time be; and similar for an
RX timestamp and figuring out its original length.
So, this adds a new field to the duration routines which requests
SIFS or no SIFS to be included. All the callers currently will call
it requesting SIFS, so this /should/ be a glorious no-op. I'm however
planning some future work around airtime fairness and positioning which
requires these routines to have SIFS be optional.
Notably though, the 11n version doesn't do any SIFS addition at the moment.
I'll go and tweak and verify all of the packet durations before I go and
flip that part on.
Tested:
* AR9330, STA mode
* AR9330, AP mode
* AR9380, STA mode
The channel packet header will be shared w/ PRP (physical region page)
list channel packet and SG (scatter gather) list channel packet.
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7155
Mainly for compatibility. While I'm here, rename cpuid related
fields in hv_vmbus_channel.
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7141
just with INVARIANTS
rwatson's point was valid in the sense that if the data passed at runtime is
invalid, it should always trip the invariant, not just in the debug case.
This is a deterrent against malicious input, or input caused by hardware
errors.
MFC after: 4 days
X-MFC with: r302577
Requested by: rwatson
Sponsored by: EMC / Isilon Storage Division
It is not safe to iterate the sub-channel list w/o lock on the
close path, while it's even more difficult to hold the lock
and iterate the sub-channel list. We leverage the
vmbua_{get,rel}_subchan() functions to solve this dilemma.
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7112
Device detach method may sleep.
While I'm here, rename the function, fix indentation and function
comment.
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7110
- Make the vmbus_chan_add more straightforward.
- Partially fix the hv_vmbus_release_unattached_channels().
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7109
In case that VMBUS_CHAN_ISPRIMARY is needed in the early place of
channel setup.
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7108
