* Is using 802.11s with DFS possible? @ 2017-06-29 1:54 Zach Sherin 2017-06-29 17:53 ` Peter Oh 0 siblings, 1 reply; 5+ messages in thread From: Zach Sherin @ 2017-06-29 1:54 UTC (permalink / raw) To: ath10k Hi all, I've been running some experiments in LEDE thanks to your help many months ago, and I want to use DFS frequencies with my mesh network. Does ath10k currently support this or am I up a creek? My tests show that I can use DFS frequencies with AP mode but have always failed when I use them in a mesh, such that the interface won't even start. Any suggestions? Thanks for your time, Zach PS: I'm using an Archer C7 v2, latest stable LEDE build with the built-in ath10k firmware. Meshing on channel 36 is fine, but anything that requires DFS fails. _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Is using 802.11s with DFS possible? 2017-06-29 1:54 Is using 802.11s with DFS possible? Zach Sherin @ 2017-06-29 17:53 ` Peter Oh 2017-06-30 4:08 ` Chun-Yeow Yeoh 0 siblings, 1 reply; 5+ messages in thread From: Peter Oh @ 2017-06-29 17:53 UTC (permalink / raw) To: Zach Sherin, ath10k On 06/28/2017 06:54 PM, Zach Sherin wrote: > Hi all, > > I've been running some experiments in LEDE thanks to your help many > months ago, and I want to use DFS frequencies with my mesh network. > Does ath10k currently support this or am I up a creek? My tests show > that I can use DFS frequencies with AP mode but have always failed > when I use them in a mesh, such that the interface won't even start. > > Any suggestions? As far as I know, no DFS channels enabled in mesh mode at this moment. To support DFS channels in mesh mode, wpa_supplicant and mac80211 changes are required. > Thanks for your time, > Zach > > PS: I'm using an Archer C7 v2, latest stable LEDE build with the > built-in ath10k firmware. Meshing on channel 36 is fine, but anything > that requires DFS fails. > _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Is using 802.11s with DFS possible? 2017-06-29 17:53 ` Peter Oh @ 2017-06-30 4:08 ` Chun-Yeow Yeoh 2017-06-30 9:48 ` Simon Wunderlich 0 siblings, 1 reply; 5+ messages in thread From: Chun-Yeow Yeoh @ 2017-06-30 4:08 UTC (permalink / raw) To: Peter Oh Cc: Zach Sherin, benjamin, ath10k@lists.infradead.org, Simon Wunderlich On Fri, Jun 30, 2017 at 1:53 AM, Peter Oh <peter.oh@bowerswilkins.com> wrote: > > > On 06/28/2017 06:54 PM, Zach Sherin wrote: >> >> Hi all, >> >> I've been running some experiments in LEDE thanks to your help many >> months ago, and I want to use DFS frequencies with my mesh network. >> Does ath10k currently support this or am I up a creek? My tests show >> that I can use DFS frequencies with AP mode but have always failed >> when I use them in a mesh, such that the interface won't even start. >> >> Any suggestions? > > As far as I know, no DFS channels enabled in mesh mode at this moment. > To support DFS channels in mesh mode, wpa_supplicant and mac80211 changes > are required. > https://www.spinics.net/lists/linux-wireless/msg162307.html Simon and Benjamin have submitted the above patches and some of them has upstream to mac80211-next. Perhaps, Simon and Benjamin can comment on this. ---- Chun-Yeow >> Thanks for your time, >> Zach >> >> PS: I'm using an Archer C7 v2, latest stable LEDE build with the >> built-in ath10k firmware. Meshing on channel 36 is fine, but anything >> that requires DFS fails. >> > > > _______________________________________________ > ath10k mailing list > ath10k@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/ath10k _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Is using 802.11s with DFS possible? 2017-06-30 4:08 ` Chun-Yeow Yeoh @ 2017-06-30 9:48 ` Simon Wunderlich 2017-06-30 11:23 ` Benjamin Berg 0 siblings, 1 reply; 5+ messages in thread From: Simon Wunderlich @ 2017-06-30 9:48 UTC (permalink / raw) To: Chun-Yeow Yeoh Cc: Zach Sherin, benjamin, ath10k@lists.infradead.org, Peter Oh [-- Attachment #1.1: Type: text/plain, Size: 1378 bytes --] On Friday, June 30, 2017 12:08:51 PM CEST Chun-Yeow Yeoh wrote: > On Fri, Jun 30, 2017 at 1:53 AM, Peter Oh <peter.oh@bowerswilkins.com> wrote: > > On 06/28/2017 06:54 PM, Zach Sherin wrote: > >> Hi all, > >> > >> I've been running some experiments in LEDE thanks to your help many > >> months ago, and I want to use DFS frequencies with my mesh network. > >> Does ath10k currently support this or am I up a creek? My tests show > >> that I can use DFS frequencies with AP mode but have always failed > >> when I use them in a mesh, such that the interface won't even start. > >> > >> Any suggestions? > > > > As far as I know, no DFS channels enabled in mesh mode at this moment. > > To support DFS channels in mesh mode, wpa_supplicant and mac80211 changes > > are required. > > https://www.spinics.net/lists/linux-wireless/msg162307.html > Simon and Benjamin have submitted the above patches and some of them > has upstream to mac80211-next. > > Perhaps, Simon and Benjamin can comment on this. Our mac80211 patches have been upstreamed. However, the (experimental) wpa_supplicant patches have not been adopted and I've reworked them a little but they are not in a state to resubmit yet. So I don't expect the wpa_supplicant portion to work yet, and you also may need to think of a good way to have the mesh peers on a channel succession order. Cheers, Simon [-- Attachment #1.2: This is a digitally signed message part. --] [-- Type: application/pgp-signature, Size: 833 bytes --] [-- Attachment #2: Type: text/plain, Size: 146 bytes --] _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Is using 802.11s with DFS possible? 2017-06-30 9:48 ` Simon Wunderlich @ 2017-06-30 11:23 ` Benjamin Berg 0 siblings, 0 replies; 5+ messages in thread From: Benjamin Berg @ 2017-06-30 11:23 UTC (permalink / raw) To: Simon Wunderlich, Chun-Yeow Yeoh Cc: Zach Sherin, ath10k@lists.infradead.org, Peter Oh [-- Attachment #1.1: Type: text/plain, Size: 1300 bytes --] On Fri, 2017-06-30 at 11:48 +0200, Simon Wunderlich wrote: > Our mac80211 patches have been upstreamed. However, the (experimental) > wpa_supplicant patches have not been adopted and I've reworked them a little > but they are not in a state to resubmit yet. So I don't expect the > wpa_supplicant portion to work yet, and you also may need to think of a good > way to have the mesh peers on a channel succession order. For reference, an earlier version of the patchset was submitted as an RFC in November with a bit of follow up discussion later: http://lists.infradead.org/pipermail/hostap/2016-November/036726.html http://lists.infradead.org/pipermail/hostap/2016-December/036741.html There have been improvements since (e.g. solving the use after free issue) that are not yet submitted. I cannot comment on the current state of the patches though. In general a major issue is making sure that all stations switch to the same channel when a radar is detected. There is a simple mechanism in the standard for this which to my knowledge is not implemented in mac80211 at this point. But even with this in place you will likely want a versatile mechanism in hostap for stations to switch to a common channel should they end up on differing ones. Regards, Benjamin [-- Attachment #1.2: This is a digitally signed message part --] [-- Type: application/pgp-signature, Size: 855 bytes --] [-- Attachment #2: Type: text/plain, Size: 146 bytes --] _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2017-06-30 11:23 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2017-06-29 1:54 Is using 802.11s with DFS possible? Zach Sherin 2017-06-29 17:53 ` Peter Oh 2017-06-30 4:08 ` Chun-Yeow Yeoh 2017-06-30 9:48 ` Simon Wunderlich 2017-06-30 11:23 ` Benjamin Berg
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