Changes between Version 72 and Version 73 of wireless/wifi

Timestamp:

05/25/2022 10:57:23 PM (3 years ago)

Author:

Cale Collins

Comment:

added ath11k section.

wireless/wifi

@@ -837 +837 @@
 Finally, to see what's current in ath10k, see [http://wireless.kernel.org/en/users/Drivers/ath10k here] for more info
 
-==== WLE900VX and Ubuntu
-
-Troubleshooting:
-
-* "apt-get install linux-firmware" package is crucial to making this card work.
-* Run the "ps" command and look for wpa_supplicant, if there are two instances of this running, it will cause a conflict. 
-* Use Kernel version 4.15 or later when possible.  
+[=#ath11k]
+=== Atheros 802.11ax cards (ath11k) ===
+Ath11k is a linux driver for Qualcomm 802.11AX devices.  Support was first added up stream in kernel version 5.6, though it's recommended to use a kernel newer than 5.10. 
+
+To enable support for this device in the kernel menuconfig enable the option for "CRYPTO_MICHAEL_MIC" then "ATH11K", instructions on kernel.org suggest this option should be enabled as a module, not static to the kernel.  
+
+Currently the firmware for Ath11k cards is not included in our prebuilt images.  To add it:
+
+* On your workstation download the latest firmware:
+{{{
+git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
+}}}
+
+* On your Gateworks SBC:
+{{{
+cd cd /lib/firmware/ath11k/
+scp -r <hostname>@<ipaddress_of_workstation>:/<path_to_ath11k_firmware>/linux-firmware/ath11k/* .
+sync
+reboot
+}}}
+
+* Verify the interface is available using the command "ls /sys/class/net".
+
+Speed testing was bottlenecked by the router being used.  WLE3000H2 maxed out it's throughput. 
+
+{{{#!bash
+#iperf3 using 2 WLE3000H2's across Netgear Wifi6 AX1800 dual band WAP:
+
+
+root@focal-venice:~# iperf3 -c 192.168.1.5
+Connecting to host 192.168.1.5, port 5201
+[  5] local 192.168.1.127 port 58128 connected to 192.168.1.5 port 5201
+[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
+[  5]   0.00-1.00   sec  51.3 MBytes   430 Mbits/sec    0   2.11 MBytes       
+[  5]   1.00-2.00   sec  52.5 MBytes   440 Mbits/sec    0   2.76 MBytes       
+[  5]   2.00-3.00   sec  53.8 MBytes   451 Mbits/sec    0   3.08 MBytes       
+[  5]   3.00-4.00   sec  51.2 MBytes   430 Mbits/sec    0   3.08 MBytes       
+[  5]   4.00-5.00   sec  56.2 MBytes   472 Mbits/sec    0   3.08 MBytes       
+[  5]   5.00-6.00   sec  52.5 MBytes   440 Mbits/sec    0   3.08 MBytes       
+[  5]   6.00-7.00   sec  55.0 MBytes   461 Mbits/sec    0   3.08 MBytes       
+[  5]   7.00-8.00   sec  55.0 MBytes   462 Mbits/sec    0   3.08 MBytes       
+[  5]   8.00-9.00   sec  52.5 MBytes   440 Mbits/sec    0   3.08 MBytes       
+[  5]   9.00-10.00  sec  53.8 MBytes   451 Mbits/sec    0   3.08 MBytes       
+- - - - - - - - - - - - - - - - - - - - - - - - -
+[ ID] Interval           Transfer     Bitrate         Retr
+[  5]   0.00-10.00  sec   534 MBytes   448 Mbits/sec    0             sender
+[  5]   0.00-10.01  sec   531 MBytes   445 Mbits/sec                  receiver
+}}}
+
+
+
+
+
+Refrences:
+
+https://wireless.wiki.kernel.org/en/users/drivers/ath11k
+
+https://wireless.wiki.kernel.org/en/users/drivers/ath11k/installation
+
+
+
+
+
+
 
 
@@ -901 +958 @@
 The image above shows our testing setup. In general, to test TX Power, we use a Power Meter + Power Sensor + Directional Coupler. Further, when people talk about performance, they typically are talking about throughput from AP<- ->STA. When we talk about performance, we spell out specifically which network topology we are testing, who is generating/sending packets, and who is receiving. This should make it very clear where performance numbers came from and how you can compare against them.
 
-[=#ath11k]
-=== Atheros 802.11ax cards (ath11k) ===
-More info coming soon.
+=== WLE900VX and Ubuntu
+
+Troubleshooting:
+
+* "apt-get install linux-firmware" package is crucial to making this card work.
+* Run the "ps" command and look for wpa_supplicant, if there are two instances of this running, it will cause a conflict. 
+* Use Kernel version 4.15 or later when possible.  
+
 
 [=#performance]