While here, change ISCI_LED to ISCI_PHY since conceptually the hardware
ties the LEDs to a phy and the LEDs for a given phy cannot be controlled
independently.
Submitted by: Paul Maulberger <Paul.Maulberger at gmx.de> (with modifications)
This lets userspace read arbitrary information from the SFP+ modules
etc. on this bus.
Reading multiple bytes in the same transaction isn't possible right now.
I'll update the driver once the chip's firmware supports this.
MFC after: 3 days
that requires 10ms delay after device reset. Because that code was
there from day 1, I guess it was added to give enough settlement
time after updating BGE_MAC_MODE register.
The recommended delay time for BGE_MAC_MODE after updating is 40us
and it was already done in r241219.
The VCPU(Virtual CPU) of BCM5906 is used to provide a mechanism to
control the bootcode execution and to pick up configuration data
stored inside the EEPROM.
The bootcode of BCM5906 will check the BGE_VCPU_STATUS_DRV_RESET
bit to decide which booting procedure to choose.
Data sheet indicates the VCPU of BCM5906 should set
BGE_VCPU_STATUS_DRV_RESET bit *before* VCPU reset or global reset.
water mark to 256 bytes. Otherwise controller will encounter DMA
write under run errors and would result in RX DMA hang. If the
maximum payload size is 128 bytes, the water mark is set to 128
bytes as usual.
While here, set maximum read request size to 2048 for BCM5719/BCM5720.
For other PCIe devices, use 4096. And reprogram the maximum read
request size whenever device reset is performed.
make analog input loopback and dual-stream playback work by enabling
signal mixing by nid 22, as it should be according to info returned by
the CODEC. Otherwise pin nid 28 receives only signal from DAC nid 16.
PR: kern/169124
MFC after: 1 week
the ATH_TXQ_* macros.
* Introduce the new macros;
* rename the TID queue and TID filtered frame queue so the compiler
tells me I'm using the wrong macro.
These should correspond 1:1 to the existing code.
to 32k swamped the controller causing firmware hangs. Instead, round
requests smaller than 64k up to the next power of 2 as a general rule.
To handle the one known special case of a command that accepts a 12k
buffer returning a 24k-ish reply, round requests between 8k and 16k up
to 32k rather than 16k. The result is that commands less than 8k should
now be rounded up to a smaller size (either 4k or 8k) rather than 32k.
PR: kern/155658
Tested by: Andreas Longwitz
MFC after: 1 week
AR5416 and AR9280, but leave it disabled by default.
TL;DR: don't enable this code at all unless you go through the process
of getting the NIC re-certified. This is purely to be used as a
reference and NOT a certified solution by any stretch of the imagination.
The background:
The AR5112 RF synth right up to the AR5133 RF synth (used on the AR5416,
derivative is used for the AR9130/AR9160) only implement down to 2.5MHz
channel spacing in 5GHz. Ie, the RF synth is programmed in steps of 2.5MHz
(or 5, 10, 20MHz.) So they can't represent the quarter rate channels
in the 4.9GHz PSB (which end in xxx2MHz and xxx7MHz). They support
fractional spacing in 2GHz (1MHz spacing) (or things wouldn't work,
right?)
So instead of doing this, the RF synth programming for the AR5112 and
later code will round to the nearest available frequency.
If all NICs were RF5112 or later, they'll inter-operate fine - they all
program the same. (And for reference, only the latest revision of the
RF5111 NICs do it, but the driver doesn't yet implement the programming.)
However:
* The AR5416 programming didn't at all implement the fractional synth
work around as above;
* The AR9280 programming actually programmed the accurate centre frequency
and thus wouldn't inter-operate with the legacy NICs.
So this patch:
* Implements the 4.9GHz PSB fractional synth workaround, exactly as the
RF5112 and later code does;
* Adds a very dirty workaround from me to calculate the same channel
centre "fudge" to the AR9280 code when operating on fractional frequencies
in 5GHz.
HOWEVER however:
It is disabled by default. Since the HAL didn't implement this feature,
it's highly unlikely that the AR5416 and AR928x has been tested in these
centre frequencies. There's a lot of regulatory compliance testing required
before a NIC can have this enabled - checking for centre frequency,
for drift, for synth spurs, for distortion and spectral mask compliance.
There's likely a lot of other things that need testing so please don't
treat this as an exhaustive, authoritative list. There's a perfectly good
process out there to get a NIC certified by your regulatory domain, please
go and engage someone to do that for you and pay the relevant fees.
If a company wishes to grab this work and certify existing 802.11n NICs
for work in these bands then please be my guest. The AR9280 works fine
on the correct fractional synth channels (49x2 and 49x7Mhz) so you don't
need to get certification for that. But the 500KHz offset hack may have
the above issues (spur, distortion, accuracy, etc) so you will need to
get the NIC recertified.
Please note that it's also CARD dependent. Just because the RF synth
will behave correctly doesn't at all mean that the card design will also
behave correctly. So no, I won't enable this by default if someone
verifies a specific AR5416/AR9280 NIC works. Please don't ask.
Tested:
I used the following NICs to do basic interoperability testing at
half and quarter rates. However, I only did very minimal spectrum
analyser testing (mostly "am I about to blow things up" testing;
not "certification ready" testing):
* AR5212 + AR5112 synth
* AR5413 + AR5413 synth
* AR5416 + AR5113 synth
* AR9280
net80211 node power save state.
* Add an ATH_NODE_UNLOCK_ASSERT() check
* Add a new node field - an_is_powersave
* Pause/unpause the queue based on the node state
* Attempt to handle net80211 concurrency issues so the queue
doesn't get paused/unpaused more than once at a time from
the net80211 power save code.
Whilst here (and breaking my usual rule), set CLRDMASK when a queue
is unpaused, regardless of whether the queue has some pending traffic.
This means the first frame from that TID (now or later) will hvae
CLRDMASK set.
Also whilst here, bump the swretrymax counters whenever the
filtered frames code expires a frame. Again, breaking my rule, but
this is just a statistics thing rather than a functional change.
This doesn't fix ps-poll (but it doesn't break it too much worse
than it is at the present) or correcting the TID updates.
That's next on the list.
Tested:
* AR9220 AP (Atheros AP96 reference design)
* Macbook Pro and LG Optimus 1 Android phone, both setting
and clearing power save state (but not using PS-POLL.)
tree used it incorrectly, which lead to inaccurate overrated
if_obytes accounting. The drbr(9) used to update ifnet stats on
drbr_enqueue(), which is not accurate since enqueuing doesn't
imply successful processing by driver. Dequeuing neither mean
that. Most drivers also called drbr_stats_update() which did
accounting again, leading to doubled if_obytes statistics. And
in case of severe transmitting, when a packet could be several
times enqueued and dequeued it could have been accounted several
times.
o Thus, make drbr(9) API thinner. Now drbr(9) merely chooses between
ALTQ queueing or buf_ring(9) queueing.
- It doesn't touch the buf_ring stats any more.
- It doesn't touch ifnet stats anymore.
- drbr_stats_update() no longer exists.
o buf_ring(9) handles its stats itself:
- It handles br_drops itself.
- br_prod_bytes stats are dropped. Rationale: no one ever
reads them but update of a common counter on every packet
negatively affects performance due to excessive cache
invalidation.
- buf_ring_enqueue_bytes() reduced to buf_ring_enqueue(), since
we no longer account bytes.
o Drivers handle their stats theirselves: if_obytes, if_omcasts.
o mlx4(4), igb(4), em(4), vxge(4), oce(4) and ixv(4) no longer
use drbr_stats_update(), and update ifnet stats theirselves.
o bxe(4) was the most correct driver, it didn't call
drbr_stats_update(), thus it was the only driver accurate under
moderate load. Now it also maintains stats itself.
o ixgbe(4) had already taken stats from hardware, so just
- drop software stats updating.
- take multicast packet count from hardware as well.
o mxge(4) just no longer needs NO_SLOW_STATS define.
o cxgb(4), cxgbe(4) need no change, since they obtain stats
from hardware.
Reviewed by: jfv, gnn
bits under #ifdef _KERNEL but leave definitions for various structures
defined by standards ($PIR table, SMAP entries, etc.) available to
userland.
- Consolidate duplicate SMBIOS table structure definitions in ipmi(4)
and smbios(4) in <machine/pc/bios.h> and make them available to
userland.
MFC after: 2 weeks
This doesn't specifically fix the issue(s) i'm seeing in this 2GHz
environment (where setting/increasing spur immunity causes OFDM restart
errors to skyrocket through the roof; but leaving it at 0 would leave
the environment cleaner..)
Pointy-hat-to: me, for committing this broken code in the first place.
