kern/146517: [ath] [wlan] device timeouts for ath wlan device on recent stable.

[Rui Paulo]

The following reply was made to PR kern/146517; it has been noted by GNATS.

From: Rui Paulo <rpaulo at freebsd.org>
To: Alex Kozlov <spam at rm-rf.kiev.ua>
Cc: bug-followup at FreeBSD.org,
 vince at unsane.co.uk
Subject: Re: kern/146517: [ath] [wlan] device timeouts for ath wlan device on recent stable.
Date: Sat, 26 Jun 2010 21:52:11 +0100

 On 22 Jun 2010, at 14:35, Alex Kozlov wrote:
 
 > On Mon, Jun 21, 2010 at 05:30:30PM +0100, Rui Paulo wrote:
 >> On 21 Jun 2010, at 15:38, Alex Kozlov wrote:
 >>> On Mon, May 31, 2010 at 07:30:04PM +0000, Rui Paulo wrote:
 >>>>> I confirm this. Atheros 9280, work fine with 8.0R usb stick,
 >>>>> timeout after few pings with 8.1-BETA1.
 >>>>> I can try to find a particular commit, that causes this
 >>>>> regression, if its help.
 >>>> Yes, please.
 >>> Sorry for the delay. I think that the culprit is r203959.
 >> Please try this patch.
 > Patch does not help, but if I change line in AR_SREV_MERLIN_20 from
 > AH_PRIVATE((_ah))->ah_macRev == AR_XSREV_REVISION_MERLIN_20
 > to
 > AH_PRIVATE((_ah))->ah_macRev >= AR_XSREV_REVISION_MERLIN_20
 > net works again.
 
 I think this is the correct version. Can you try?
 
 Index: ar5416/ar5416reg.h
 ===================================================================
 --- ar5416/ar5416reg.h	(revision 209522)
 +++ ar5416/ar5416reg.h	(working copy)
 @@ -611,8 +611,8 @@
  	(AR_SREV_MERLIN(_ah) && \
  	 AH_PRIVATE((_ah))->ah_macRev == AR_XSREV_REVISION_MERLIN_20)
  #define	AR_SREV_MERLIN_20_OR_LATER(_ah) \
 -	(AR_SREV_MERLIN_20(_ah) || \
 -	 AH_PRIVATE((_ah))->ah_macVersion > AR_XSREV_VERSION_MERLIN)
 +	(AR_SREV_MERLIN(_ah) || \
 +	 AH_PRIVATE((_ah))->ah_macVersion >= AR_XSREV_VERSION_MERLIN_20)
  
  #define	AR_SREV_KITE(_ah) \
  	(AH_PRIVATE((_ah))->ah_macVersion == AR_XSREV_VERSION_KITE)
 
 
 Regards,
 --
 Rui Paulo