frank-w
(Frank W.)
February 8, 2026, 3:33pm
21
ah, i see in your tree…di you also use the 1.9.1 firmware or the one currently in my repo/your fork (1.8.5)?
is 1.9.1 driver/firmware better than the 1.8.5 i currently use?
have cherry-picked your code-changes to upstream 6.19-rc, the as21 driverchange only locally
seems the 1.9.1 firmware is same as the one i have in my 6.19-rc branch (i’m sure it was printing 1.8.5)
rmandrad
(rmandrad)
February 9, 2026, 3:30am
22
so i used as base the 6.19-rc and then retrofitted the 1.9.1 patch and are using the 1.9.1 firmware
Just switched to Frank’s 6.19-main branch which includes your changes, Perf is better but still dies with a --bidir test.
Can you confirm this on your side?
Run iperf3 -s on the bpi
Then iperf3 --bidir -c ip.of.banana.pi on another machine
frank-w
(Frank W.)
February 9, 2026, 11:28am
24
Have you checked firmware version in dmesg? I tried copying the 1.9.1 firmware but diff said there is no difference,so i can’t commit it. Looks like the firmware blob was 1.9.1 already (and reported 1.8.5 with older driver version) or have not changed since i had synchronised last time.
rmandrad
(rmandrad)
February 9, 2026, 11:39am
25
iperf3 -c bpi4 --bidir
Connecting to host bpi4, port 5201
[ 5] local bpi4pro port 38730 connected to bpi4 port 5201
[ 7] local bpi4pro port 38742 connected to bpi4 port 5201
[ ID][Role] Interval Transfer Bitrate Retr Cwnd
[ 5][TX-C] 0.00-1.00 sec 582 MBytes 4.88 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 0.00-1.00 sec 80.0 MBytes 670 Mbits/sec
[ 5][TX-C] 1.00-2.00 sec 586 MBytes 4.92 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 1.00-2.00 sec 70.0 MBytes 587 Mbits/sec
[ 5][TX-C] 2.00-3.00 sec 589 MBytes 4.94 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 2.00-3.00 sec 70.6 MBytes 592 Mbits/sec
[ 5][TX-C] 3.00-4.00 sec 588 MBytes 4.93 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 3.00-4.00 sec 74.8 MBytes 627 Mbits/sec
[ 5][TX-C] 4.00-5.00 sec 590 MBytes 4.95 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 4.00-5.00 sec 71.2 MBytes 598 Mbits/sec
[ 5][TX-C] 5.00-6.00 sec 590 MBytes 4.95 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 5.00-6.00 sec 71.1 MBytes 597 Mbits/sec
[ 5][TX-C] 6.00-7.00 sec 589 MBytes 4.94 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 6.00-7.00 sec 73.1 MBytes 613 Mbits/sec
[ 5][TX-C] 7.00-8.00 sec 585 MBytes 4.91 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 7.00-8.00 sec 71.9 MBytes 603 Mbits/sec
[ 5][TX-C] 8.00-9.00 sec 589 MBytes 4.94 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 8.00-9.00 sec 70.5 MBytes 591 Mbits/sec
[ 5][TX-C] 9.00-10.01 sec 561 MBytes 4.66 Gbits/sec 0 2.18 MBytes
[ 7][RX-C] 9.00-10.01 sec 95.1 MBytes 790 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID][Role] Interval Transfer Bitrate Retr
[ 5][TX-C] 0.00-10.01 sec 5.71 GBytes 4.90 Gbits/sec 0 sender
[ 5][TX-C] 0.00-10.01 sec 5.71 GBytes 4.90 Gbits/sec receiver
[ 7][RX-C] 0.00-10.01 sec 752 MBytes 630 Mbits/sec 0 sender
[ 7][RX-C] 0.00-10.01 sec 748 MBytes 627 Mbits/sec receiver
Accepted connection from bpi4pro, port 38724
[ 5] local bpi4 port 5201 connected to bpi4pro port 38730
[ 8] local bpi4 port 5201 connected to bpi4pro port 38742
[ ID][Role] Interval Transfer Bitrate Retr Cwnd
[ 5][RX-S] 0.00-1.00 sec 579 MBytes 4.85 Gbits/sec
[ 8][TX-S] 0.00-1.00 sec 83.4 MBytes 699 Mbits/sec 0 354 KBytes
[ 5][RX-S] 1.00-2.00 sec 587 MBytes 4.92 Gbits/sec
[ 8][TX-S] 1.00-2.00 sec 69.9 MBytes 586 Mbits/sec 0 354 KBytes
[ 5][RX-S] 2.00-3.00 sec 589 MBytes 4.94 Gbits/sec
[ 8][TX-S] 2.00-3.00 sec 70.4 MBytes 590 Mbits/sec 0 365 KBytes
[ 5][RX-S] 3.00-4.00 sec 588 MBytes 4.93 Gbits/sec
[ 8][TX-S] 3.00-4.00 sec 74.2 MBytes 623 Mbits/sec 0 373 KBytes
[ 5][RX-S] 4.00-5.00 sec 590 MBytes 4.95 Gbits/sec
[ 8][TX-S] 4.00-5.00 sec 71.5 MBytes 600 Mbits/sec 0 396 KBytes
[ 5][RX-S] 5.00-6.00 sec 590 MBytes 4.95 Gbits/sec
[ 8][TX-S] 5.00-6.00 sec 71.5 MBytes 600 Mbits/sec 0 373 KBytes
[ 5][RX-S] 6.00-7.00 sec 589 MBytes 4.94 Gbits/sec
[ 8][TX-S] 6.00-7.00 sec 73.4 MBytes 616 Mbits/sec 0 376 KBytes
[ 5][RX-S] 7.00-8.00 sec 585 MBytes 4.91 Gbits/sec
[ 8][TX-S] 7.00-8.00 sec 71.6 MBytes 600 Mbits/sec 0 348 KBytes
[ 5][RX-S] 8.00-9.00 sec 590 MBytes 4.95 Gbits/sec
[ 8][TX-S] 8.00-9.00 sec 70.5 MBytes 591 Mbits/sec 0 390 KBytes
[ 5][RX-S] 9.00-10.00 sec 561 MBytes 4.70 Gbits/sec
[ 8][TX-S] 9.00-10.00 sec 95.5 MBytes 801 Mbits/sec 0 359 KBytes
[ 5][RX-S] 10.00-10.01 sec 4.00 MBytes 3.11 Gbits/sec
[ 8][TX-S] 10.00-10.01 sec 0.00 Bytes 0.00 bits/sec 0 359 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID][Role] Interval Transfer Bitrate Retr
[ 5][RX-S] 0.00-10.01 sec 5.71 GBytes 4.90 Gbits/sec receiver
[ 8][TX-S] 0.00-10.01 sec 752 MBytes 630 Mbits/sec 0 sender
According to dmesg it says it’s 1.9.1
I feel like i should switch to 1.8.5 and see if that’s any better, Anyone got a link to that firmware?