Am 23.12.2015 um 13:28 schrieb Lukas Göstl: > Hi Oleksij, > > --- > --- a /drivers/net/wireless/ath/ath9k/hif_usb.h > +++ b/drivers/net/wireless/ath/ath9k/hif_usb.h > @@ -34,7 +34,10 @@ > > /* FIXME: Verify these numbers (with Windows) */ > #define MAX_TX_URB_NUM 8 > -#define MAX_TX_BUF_NUM 256 > +/* Decrease BUF_NUM to have the same values for > + * TX_THRESHOLD in driver and HTC_MAX_TX_STATUS > + * in firmware. This reduce load on the Adapter */ > +#define MAX_TX_BUF_NUM 22 > #define MAX_TX_BUF_SIZE 32768 > #define MAX_TX_AGGR_NUM 20 > -- > > With... > #define ATH9K_HTC_TX_RESERVE 10 > #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE) > ... this Patch decreases the ATH9K_HTC_TX_THRESHOLD to 12, so that the queue > has never more than 12 items. > > Therefore the cnt for tx_status in the firmware never gets over > HTC_MAX_TX_STATUS (defined as 12).
Interesting, i need to do some benchtests with changes. Beside, do you get "firmware panic" notification in dmesg? If no, you will need try latest ath9k code. > Regards, > Lukas > > Am 23.12.2015 um 12:50 schrieb Oleksij Rempel: >> Hi, >> >> thank you for your testing. >> >> Am 23.12.2015 um 11:53 schrieb Lukas Göstl: >>> Hi again, >>> >>> I got my Mesh Network running without any of the wireless adapters >>> getting stuck. The Problem was that the adapter got overwhelmed when >>> the ath9k driver wanted to send more packets than the adapter could >> process. More precisely the adapter got Problems when the >> HTC_MAX_TX_STATUS (defined as 12) was reached. So I reduced the >> software queue of the ath9k driver from 256 to 12 Packets. >> >> I'm not sure what you mean. Please send diff with your changes. >> >>> However the performance could be better. Has anyone an idea for another >> solution or a suggestion to increase the performance? >>> >>> Thanks, >>> Lukas >>> >>>> Hi all, >>>> >>>> i successfully build up a secure Mesh Network over 20 Nodes with >>>> wpa_supplicant, ath9k_htc and linux-kernel 3.18 >>>> >>>> I know there is a limit of station peering's on ath9k_htc, however I >> whitelisted the stations in a way, that only 7 Peers authenticate with each >> other. >>>> >>>> The Mesh Network runs well for about 2 - 3 hours. Then some wireless >> adapters get stuck and do not response anymore. They need a Powercycle to >> work again. >>>> >>>> Has anybody an idea why this happens or what`s the best way to debug >> such a problem? I don't get any output in syslog. >>>> >>>> Thanks, >>>> Lukas >>> _______________________________________________ >>> ath9k-devel mailing list >>> ath9k-devel@lists.ath9k.org >>> https://lists.ath9k.org/mailman/listinfo/ath9k-devel >>> >> >> >> -- >> Regards, >> Oleksij > -- Regards, Oleksij
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