[ath9k-devel] Unable to associate using wireless-testing on ar9220

[ath9k-devel] Unable to associate using wireless-testing on ar9220

[Carl Fürstenberg]

We are trying to setup an AP using ar9220 on wireless-testing 
(2.6.33-rc4-wl-47251-g281bca7) and fails with below error during 
association:

Jan 21 14:24:36 wlan hostapd: wlan0: STA 00:04:20:1e:1f:75 IEEE 802.11: 
did not acknowledge authentication response

This is a repeatable occurrence testing multiple wlan cards as client. 
Would be happy for some help in debugging this issue.

/Carl F?rstenberg - excito



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[ath9k-devel] Unable to associate using wireless-testing on ar9220

[Felix Fietkau]

On 2010-01-21 2:31 PM, Carl F?rstenberg wrote:
> We are trying to setup an AP using ar9220 on wireless-testing 
> (2.6.33-rc4-wl-47251-g281bca7) and fails with below error during 
> association:
> 
> Jan 21 14:24:36 wlan hostapd: wlan0: STA 00:04:20:1e:1f:75 IEEE 802.11: 
> did not acknowledge authentication response
> 
> This is a repeatable occurrence testing multiple wlan cards as client. 
> Would be happy for some help in debugging this issue.
Could you please test this patch and see if it resolves your issue?

--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1229,6 +1229,11 @@ void ath9k_hw_init_global_settings(struc
 	/* As defined by IEEE 802.11-2007 17.3.8.6 */
 	slottime = ah->slottime + 3 * ah->coverage_class;
 	acktimeout = slottime + sifstime;
+
+	/* Workaround for a hw issue */
+	if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
+		acktimeout = max(64, acktimeout);
+
 	ath9k_hw_setslottime(ah, slottime);
 	ath9k_hw_set_ack_timeout(ah, acktimeout);
 	ath9k_hw_set_cts_timeout(ah, acktimeout);

[ath9k-devel] Unable to associate using wireless-testing on ar9220

[Carl Fürstenberg]

resend due to missing replying to mailing list.
Felix Fietkau wrote:
> On 2010-01-21 2:31 PM, Carl F?rstenberg wrote:
>   
>> We are trying to setup an AP using ar9220 on wireless-testing 
>> (2.6.33-rc4-wl-47251-g281bca7) and fails with below error during 
>> association:
>>
>> Jan 21 14:24:36 wlan hostapd: wlan0: STA 00:04:20:1e:1f:75 IEEE 802.11: 
>> did not acknowledge authentication response
>>
>> This is a repeatable occurrence testing multiple wlan cards as client. 
>> Would be happy for some help in debugging this issue.
>>     
> Could you please test this patch and see if it resolves your issue?
>
> --- a/drivers/net/wireless/ath/ath9k/hw.c
> +++ b/drivers/net/wireless/ath/ath9k/hw.c
> @@ -1229,6 +1229,11 @@ void ath9k_hw_init_global_settings(struc
>  	/* As defined by IEEE 802.11-2007 17.3.8.6 */
>  	slottime = ah->slottime + 3 * ah->coverage_class;
>  	acktimeout = slottime + sifstime;
> +
> +	/* Workaround for a hw issue */
> +	if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
> +		acktimeout = max(64, acktimeout);
> +
>  	ath9k_hw_setslottime(ah, slottime);
>  	ath9k_hw_set_ack_timeout(ah, acktimeout);
>  	ath9k_hw_set_cts_timeout(ah, acktimeout);
>
>   
This particular error seems to have been solved in w-t now.

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