UDP Checksum offload with X550-T2

Alan Beadle ab.beadle at gmail.com
Fri Feb 7 14:44:21 CET 2025


I found examples that showed the last two lines from my prior email in
reversed order (that is, set ip_hdr->hdr_checksum = 0 before calling
rte_ipv4_phdr_cksum()). I switched those lines and it sometimes works
now, but eventually fails again (after several hundred thousand
packets) whereas the tx_burst() was reliable before I tried to use
offload. Is there still something else wrong here?

-Alan


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