From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ali Abedi <a2abedi@uwaterloo.ca>
Date: Mon, 03 Nov 2014 11:39:03 -0500
Subject: [ath9k-devel] The operation of Minstrel_ht
In-Reply-To: <CABiX5j-AxnVV51cc9+uWp8wBencR3u7kX_Sjc-FkNBEwd+f2+w@mail.gmail.com>
References: <5437EFDB.4000202@mailservices.uwaterloo.ca>
	<CABiX5j-AxnVV51cc9+uWp8wBencR3u7kX_Sjc-FkNBEwd+f2+w@mail.gmail.com>
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To: ath9k-devel@lists.ath9k.org

Thank you for your reply.

Regarding number 1, does  MRR used when no blockack is received?
Because I believe transmission is done when the blockack is received
even if most of the MPDUs are lost.

Thanks,
Ali


On 14-10-31 08:04 PM, Kevin Hayes wrote:
> 1.  multirate retry is still available for HT aggregates yes.
> 2.  You would just set the number of retries to 0.  Then if the 
> aggregate failed (either partially or completely) it would be up to SW 
> to do something.
> 3.  Software retry is not defined by the spec, but rather by 
> implementation.
>   Retries of MPDU's are done by SW in every case except for the case 
> where the BA never came back, as you said.
>
>
>
> On Fri, Oct 10, 2014 at 7:40 AM, Ali Abedi <a2abedi@uwaterloo.ca 
> <mailto:a2abedi@uwaterloo.ca>> wrote:
>
>     Hello,
>
>
>     I have a few questions about the operation of Minstrel_ht. I couldn't
>     find a good reference that
>     explains minstrel_ht. I tried to understand it by reading the
>     code. The
>     fact that frame aggregation
>     was added to the picture confuses me a bit. I understand the multirate
>     retry chain in Minstrel (802.11g).
>
>     1- Since the hardware only reties the frame when no block ack is
>     received (phy header damage)
>     (is this correct?), do we still use the multirate retry chain with
>     frame
>     aggregation?
>
>     2- Is it possible to disable hardware retries?
>
>     3- Is software retry defined for an individual MPDU? Is this the
>     number
>     of times an MPDU
>     is rescheduled for transmission?
>
>
>     Thank you in advance.
>
>     Best,
>     Ali
>
>
>     _______________________________________________
>     ath9k-devel mailing list
>     ath9k-devel at lists.ath9k.org <mailto:ath9k-devel@lists.ath9k.org>
>     https://lists.ath9k.org/mailman/listinfo/ath9k-devel
>
>
>
>
> -- 
> Kevin Hayes

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