IMX6SX SDB PCIe + ATH9K(AR9280) performance problem

yulsangkim — Mon, 13 Aug 2018 13:55:39 GMT

I am testing the pcie + ar9280 (wifi) performance on the imx6sx board. Transmission performance is below 10Mbps. Therefore, when debugging, ath_isr () printk message of the Linux ath9k device driver is output, the transmission performance is more than 50Mbps.

1. Is the PCIe or ATH9K driver a problem?
2. What is the solution?

I need help.

Re: IMX6SX SDB PCIe + ATH9K(AR9280) performance problem

igorpadykov — Tue, 14 Aug 2018 11:07:11 GMT

Hi Yulsang

one can look for wifi modules which are optimized and supported in nxp official linux bsps:

wireless.murata.com/eng/products/rf-modules-1/wi-fi-bluetooth-for-freescale-i-mx.html

Linux documentation

i.MX Software|NXP

i.MX6Q PCIe throughput figures can be found on

https://community.nxp.com/docs/DOC-95014

Best regards
igor
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IMX6SX SDB PCIe + ATH9K(AR9280) performance problem

Re: IMX6SX SDB PCIe + ATH9K(AR9280) performance problem