* Add ah_ratesArray[] to the ar5416 HAL state - this stores the maximum
values permissable per rate.
* Since different chip EEPROM formats store this value in a different place,
store the HT40 power detector increment value in the ar5416 HAL state.
* Modify the target power setup code to store the maximum values in the
ar5416 HAL state rather than using a local variable.
* Add ar5416RateToRateTable() - to convert a hardware rate code to the
ratesArray enum / index.
* Add ar5416GetTxRatePower() - which goes through the gymnastics required
to correctly calculate the target TX power:
+ Add the power detector increment for ht40;
+ Take the power offset into account for AR9280 and later;
+ Offset the TX power correctly when doing open-loop TX power control;
+ Enforce the per-rate maximum value allowable.
Note - setting a TPC value of 0x0 in the TX descriptor on (at least)
the AR9160 resulted in the TX power being very high indeed. This didn't
happen on the AR9220. I'm guessing it's a chip bug that was fixed at
some point. So for now, just assume the AR5416/AR5418 and AR9130 are
also suspect and clamp the minimum value here at 1.
Tested:
* AR5416, AR9160, AR9220 hostap, verified using (2GHz) spectrum analyser
* Looked at target TX power in TX descriptor (using athalq) as well as TX
power on the spectrum analyser.
TODO:
* The TX descriptor code sets the target TX power to 0 for AR9285 chips.
I'm not yet sure why. Disable this for TPC and ensure that the TPC
TX power is set.
* AR9280, AR9285, AR9227, AR9287 testing!
* 5GHz testing!
Quirks:
* The per-packet TPC code is only exercised when the tpc sysctl is set
to 1. (dev.ath.X.tpc=1.) This needs to be done before you bring the
interface up.
* When TPC is enabled, setting the TX power doesn't end up with a call
through to the HAL to update the maximum TX power. So ensure that
you set the TPC sysctl before you bring the interface up and configure
a lower TX power or the hardware will be clamped by the lower TX
power (at least until the next channel change.)
Thanks to Qualcomm Atheros for all the hardware, and Sam Leffler for use
of his spectrum analyser to verify the TX channel power.
ath_tx_rate_fill_rcflags(). Include setting up the TX power cap in the
rate scenario setup code being passed to the HAL.
Other things:
* add a tx power cap field in ath_rc.
* Add a three-stream flag in ath_rc.
* Delete the LDPC flag from ath_rc - it's not a per-rate flag, it's a
global flag for the transmission.
directly referencing ni->ni_txpower.
This provides the hardware with a slightly more accurate idea of
the maximum TX power to be using.
This is part of a series to get per-packet TPC to work (better).
Tested:
* AR5416, hostap mode
well as enabled when necessary. And simplify the checksum routine
itself, adding UDP bit to the test. Thanks to Kevin Lo for pointing
out the problems and code suggestions.
device which makes the request for dma tag, instead of some descendant
of the PCI device, by creating a pass-through trampoline for vga_pci
and ata_pci buses.
Sponsored by: The FreeBSD Foundation
Suggested by: jhb
Discussed with: jhb, mav
MFC after: 1 week
Stop abusing xpt_periph in random plases that really have no periph related
to CCB, for example, bus scanning. NULL value is fine in such cases and it
is correctly logged in debug messages as "noperiph". If at some point we
need some real XPT periphs (alike to pmpX now), quite likely they will be
per-bus, and not a single global instance as xpt_periph now.
This includes a new IOCTL to support a generic method for nvmecontrol(8) to pass
IDENTIFY, GET_LOG_PAGE, GET_FEATURES and other commands to the controller, rather than
separate IOCTLs for each.
Sponsored by: Intel
These were added early on for benchmarking purposes to avoid the mapped I/O
penalties incurred in kern_physio. Now that FreeBSD (including kern_physio)
supports unmapped I/O, the need for these NVMe-specific routines no longer exists.
Sponsored by: Intel
it is being installed). Improve other error messages while here.
- Select special FPGA specific configuration profile when appropriate.
MFC after: 3 days
volumes behind a ciss(4) controller were being reported with malformeed
names and identifiers.
Repair that reporting by using the CAM values for the three SCSI indents
reported via camcontrol devlist
PR: kern/171650
Reviewed by: scottl
Obtained from: Yahoo! Inc.
MFC after: 2 weeks
somewhere around svn r39402 to r39234.
I don't know of anyone who really wants to test these changes, but they
only remove the deprecated code in question. This shreds the driver down a
bit and *removes* options from the kernel configs.
These don't appear to be referenced in the man page, so no need to check it
there.
PR: kern/44587
Obtained from: Yahoo! Inc.
MFC after: 2 weeks
