Re: [PATCH 2/2] mac80211: Always send EAPOL frames at lowest rate

On 2011-07-29 8:00 PM, Helmut Schaa wrote:

On Fri, Jul 29, 2011 at 7:56 PM, Helmut Schaa
[off-list ref]  wrote:

quoted

 On Fri, Jul 29, 2011 at 7:51 PM, Felix Fietkau[off-list ref]  wrote:

quoted

 On 2011-07-29 7:22 PM, Helmut Schaa wrote:

quoted

 Since EAPOL frames are normal data frames they are treated by the rate
 control algorithm as such. Thus it can happen that the rate control
 algorithm chooses an inappropriate rate (minstrel_ht uses MCS rates for
 example) for the 4-way handshake and under low signal conditions the
 handshake may time out.

 To fix this issue always treat EAPOL frames the same as management
 frames and send them with the lowest available rate.

 Have you tried preventing minstrel_ht from using EAPOL frames for probing
 different rates instead of forcing it to use the lowest rate?

 Nope. I'll give it a try soon.

Felix, what rate is used by minstrel_ht if there are no statistics yet? MCS0?

Yes, rates default to lowest until better ones are available.

- Felix