From owner-freebsd-wireless@FreeBSD.ORG  Mon Apr 20 10:19:12 2015
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Date: Mon, 20 Apr 2015 10:19:12 +0000
From: Alexey Dokuchaev <danfe@FreeBSD.org>
To: Adrian Chadd <adrian@freebsd.org>
Cc: Alexey Dokuchaev <danfe@nsu.ru>,
 "freebsd-wireless@freebsd.org" <wireless@freebsd.org>
Subject: Re: AR9462 PCIe1x card: endless messages in dmesg
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On Wed, Jan 21, 2015 at 08:06:09AM -0800, Adrian Chadd wrote:
> On 21 January 2015 at 01:20, Alexey Dokuchaev <danfe@nsu.ru> wrote:
> > Hi there,
> >
> > Just installed this AR9462-based PCIe (1x) card into my work i386 desktop
> > running fortnight-old -CURRENT (r276691).  So far so good -- it delivers
> > pretty stable, lagless Internet experience, but keeps shitting in kernel
> > buffer very quickly with these (tons of them):
> >
> >     ath0: ath_edma_rxbuf_alloc: nothing on rxbuf?!
> >     ath0: ath_edma_rxfifo_alloc: Q1: alloc failed: i=0, nbufs=128?
> >
> > Should I worry about it?  What's the proper way to shut it up?
> 
> Put ATH_ENABLE_11N in your kernel config.

Haven't used it for a while, but now with 11.0-CURRENT (r280285), suddenly
it doesn't work, telling me this in dmesg:

  ar9300_attach: calling ar9300_hw_attach
  ar9300_hw_attach: calling ar9300_eeprom_attach
  ar9300_flash_map: unimplemented for now
  Restoring Cal data from DRAM
  Restoring Cal data from EEPROM
  Restoring Cal data from Flash
  Restoring Cal data from Flash
  Restoring Cal data from OTP
  ar9300_hw_attach: ar9300_eeprom_attach returned 0
  ath0: unable to alloc memory for 5120 tx descriptors, error 12
  ath0: failed to allocate TX descriptors: 12
  device_attach: ath0 attach returned 12

./danfe