> Hello. > > On 15.10.2019 18:52, Oleksandr Natalenko wrote: > > Thanks for the answer and the IRC discussion. As agreed I've applied > > [1] and [2], and have just swapped the card to try it again. So far, > > it works fine in 5 GHz band in 802.11ac mode as an AP. > > > > I'll give it more load with my phone over evening, and we can discuss > > what to do next (if needed) tomorrow again. Or feel free to drop me an > > email today. > > > > Thanks for your efforts. > > > > [1] > > https://github.com/LorenzoBianconi/wireless-drivers-next/commit/cf3436c42a297967235a9c9778620c585100529e.patch > > [2] > > https://github.com/LorenzoBianconi/wireless-drivers-next/commit/aad256eb62620f9646d39c1aa69234f50c89eed8.patch > > As agreed, here are iperf3 results, AP to STA distance is 2 meters. > > Client sends, TCP: > > [ ID] Interval Transfer Bitrate Retr > [ 5] 0.00-10.00 sec 70.4 MBytes 59.0 Mbits/sec 3800 > sender > [ 5] 0.00-10.03 sec 70.0 MBytes 58.6 Mbits/sec > receiver > > Client receives, TCP: > > [ ID] Interval Transfer Bitrate Retr > [ 5] 0.00-10.06 sec 196 MBytes 163 Mbits/sec 3081 > sender > [ 5] 0.00-10.01 sec 191 MBytes 160 Mbits/sec > receiver > > Client sends, UDP, 128 streams: > > [ ID] Interval Transfer Bitrate Jitter Lost/Total > Datagrams > [SUM] 0.00-10.00 sec 160 MBytes 134 Mbits/sec 0.000 ms 0/115894 > (0%) sender > [SUM] 0.00-10.01 sec 160 MBytes 134 Mbits/sec 0.347 ms 0/115892 > (0%) receiver > > Client receives, UDP, 128 streams: > > [ ID] Interval Transfer Bitrate Jitter Lost/Total > Datagrams > [SUM] 0.00-10.01 sec 119 MBytes 99.4 Mbits/sec 0.000 ms 0/85888 (0%) > sender > [SUM] 0.00-10.00 sec 119 MBytes 99.5 Mbits/sec 0.877 ms 0/85888 (0%) > receiver > > Given the HW is not the most powerful, the key point here is that nothing > crashed after doing these tests. Hi Oleksandr, thx a lot for testing these 2 patches. Now we need to understand why the chip hangs if we enable scatter gather dma transfer on x86 while it is working fine on multiple mips/arm devices (patch 2/2 just disable it for debugging). Regards, Lorenzo > > -- > Oleksandr Natalenko (post-factum)
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