per packet retry limit in hfa384x_tx_frame

Antonio Vilei antonio.vilei
Mon Oct 27 09:20:00 PST 2003


is there any firmware version out there able to use different retry limits
per packet, by specifying it in the field retry_count of struct

I tried to change it to use different values for UDP and TCP packets, but I
saw in the statistics that the card wasn't using the specified value.

Thanks in advance,

----- Original Message -----
From: "Jouni Malinen" <jkmaline at>
To: <hostap at>
Sent: Saturday, October 25, 2003 4:11 AM
Subject: Re: Setting retry limits

> On Fri, Oct 24, 2003 at 07:31:04PM +0200, Ferreri wrote:
> > I would like to know if it is possible to change retry limits in Prism
> > or if they are somehow fixed and unchangeable. I tried to change them
> > iwconfig, and even through the set_rid() functions in the driver, but I
> > no results. Is this true for any version of the firmware (I also tried
> > 1.7.4) ?
> If you tried changed shortRetryLimit or longRetryLimit RIDs (FD48,
> FD49), it was doomed to fail.. Those are read only just like all other
> FD?? RIDs. However, you can set cnfAltRetryCount (FC32) and indeed, Host
> AP driver already supports this so that you can use 'iwconfig wlan0
> retry <val>' to configure retry limits. Each TX frame can then be sent
> with the fixed long/short retry limit or with the configurable
> alternative retry limit.
> --
> Jouni Malinen                                            PGP id EFC895FA
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