Re: [PATCH v4] arm64: dts: rockchip: increase gmac rx_delay on rk3399-puma

On Fri, 13 Dec 2024 10:54:58 +0100, Jakob Unterwurzacher wrote:

During mass manufacturing, we noticed the mmc_rx_crc_error counter, as reported by "ethtool -S eth0 | grep mmc_rx_crc_error", to increase above zero during nuttcp speedtests. Most of the time, this did not affect the achieved speed, but it prompted this investigation.

Cycling through the rx_delay range on six boards (see table below) of various ages shows that there is a large good region from 0x12 to 0x35 where we see zero crc errors on all tested boards.

[...]

Applied, thanks!

[1/1] arm64: dts: rockchip: increase gmac rx_delay on rk3399-puma commit: 9d241b06802c6c2176ae7aa4f9f17f8a577ed337

Best regards,