Hi Marcus, Yes, as I suggested before, you should change it in driver code. This value in mac80211 codebase is not reflected in ath9k driver(atleast) where the default is 10 retransmits. And if someone can explain how does minstrel work with default as 7 retransmits while driver does 10 retransmits, that will be awesome!
- Abhinav On Wed, Apr 16, 2014 at 9:49 PM, marcus muffin <ath9kmuf...@gmail.com>wrote: > hi all, > > I found that there is a retry value in net/wireless/core.c > > 348 rdev->wiphy.retry_short = 7; > 349 rdev->wiphy.retry_long = 4; > > If i set those values to 0. the retry will still exist. Is it correct? > > Marcus > > > 2014-03-26 21:34 GMT+08:00 abhinav narain <abhinavnarai...@gmail.com>: > > Hi, >> just change value from 10 to 0 for retries to be zero! >> >> http://lxr.linux.no/linux+v3.13.5/drivers/net/wireless/ath/ath9k/init.c#L954 >> >> mac80211 API does not update this in ath9k for some reason and the default >> value of retries is 7 in rate minstrel which has also to be changed. >> >> Thanks, >> Abhinav >> >> >> On Wed, Mar 26, 2014 at 5:10 AM, Holger Schurig >> <holgerschu...@gmail.com>wrote: >> >>> 1. "iwconfig" is outdated, don't use it. Use "iw" instead >>> 2. As noted in the mail you linked to, the retry is also done by >>> software in the mac80211 layer and in the ath9k driver >>> 3. ath9k based-cards don't have firmware >>> >>> So, what you have basically do is to find out where in >>> drivers/net/wireless/atheros and net/mac80211 or net/wireless the >>> software-retry handling is taking place and make this switchable. LXR >>> tells me that IEEE80211_FCTL_RETRY is used in ath9k, see >>> >>> http://lxr.linux.no/linux+v3.13.5/drivers/net/wireless/ath/ath9k/xmit.c#L357 >>> . It seems that the ath9k has a max number of retries defined: >>> >>> http://lxr.linux.no/linux+v3.13.5/drivers/net/wireless/ath/ath9k/ath9k.h#L653 >>> >>> Hope that puts you into the right direction. >>> _______________________________________________ >>> ath9k-devel mailing list >>> ath9k-devel@lists.ath9k.org >>> https://lists.ath9k.org/mailman/listinfo/ath9k-devel >>> >> >> >> _______________________________________________ >> ath9k-devel mailing list >> ath9k-devel@lists.ath9k.org >> https://lists.ath9k.org/mailman/listinfo/ath9k-devel >> >> >
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