[RFC] serialising net80211 TX

[PseudoCylon]

On Fri, Feb 15, 2013 at 4:03 PM, Adrian Chadd <adrian at freebsd.org> wrote:
> The (many) problems include the two TX paths - one is via _start /
> _transmit, and one is the raw xmit path.
>
> So in the short term it'll be easier (!) to just wrap all TX entry
> points with a VAP TX lock.
> Once that's done and we've debugged it, we can look at breaking it
> into a queue with a taskqueue thread for deferred transmit.
>
> How's that sound?

I think that's good because
if_start/transmit == data packet &&
if_raw_xmit == mgmt packet
is no longer true.
http://svnweb.freebsd.org/base?view=revision&revision=222682

And, all-in-one Tx path works with run(4) at least.

AK