CVS commit: src/sys/dev/ic

["Jonathan A. Kollasch" <jakllsch%netbsd.org@localhost>]

Module Name:    src
Committed By:   jakllsch
Date:           Sun Jun 14 02:10:58 UTC 2026

Modified Files:
        src/sys/dev/ic: dwc_gmac.c dwc_gmac_reg.h

Log Message:
awge/dwc_gmac: enable flow control

Avoids recieve FIFO overflows and dropped packets when connected to a switch
supporting flow control.

Gets us from hundeds of retransmits a second and ~450Mbps to zero retransmits
and ~650Mbps on RockPro64 with iperf3 recieve testing.

(To do: figure out why flow control isn't enabled until explicitly setting
'media auto' with ifconfig.)


To generate a diff of this commit:
cvs rdiff -u -r1.100 -r1.101 src/sys/dev/ic/dwc_gmac.c
cvs rdiff -u -r1.24 -r1.25 src/sys/dev/ic/dwc_gmac_reg.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.