net80211: add VHT MCS in AMRR rate control

[adrian]

Summary

This is a simple implementation, similar to HT, to generate
VHT MCS rates for testing.

I've verified it seems to do the right thing through
MCS 0..9 and NSS 1..2. It's not very optimal - same issues as
with 11n - but it at least now fully tests the 11ac TX path in
rtwn and the tx rate refactoring.

[adrian]

rebase

[adrian]

rebase

[adrian]

rebase, address changes

[thj]

sys/net80211/ieee80211_amrr.c

261

262–264

541

[adrian]

sys/net80211/ieee80211_amrr.c

262–264

OOOOOPPPPPSSSSSS

[adrian]

oops fix typo, thanks tom!

[adrian]

update, add TXRATE_HT

[adrian]

update, add TXRATE_HT

[adrian]

rebase

[bz]

sys/net80211/ieee80211_amrr.c

152

This is done in the caller already now?

283

Kind-of want to amend the comment with: (whether supported or not -- ieee80211_vht_node_check_tx_valid_mcs() will catch the unsupported cases)

360

Can you fold these into two lines not four?

401

Reset counters.

564

No { } needed.

569

What is "it"?

595

return ()

597

This line kind-of wants to move below the HT block as there's no need for it before the if (is_enough(..))

[adrian]

updates from bz@

[adrian]

more updates from bz@

[adrian]

updated, thanks!