freebsd-dev/sys/dev/neta
Marcin Wojtas acdc915461 Fix TX csum handling in if_mvneta
The mvneta device requires MVNETA_TX_CMD_L4_CHECKSUM_NONE bit to be set in the tx descriptor is checksum not required. However, mvneta_tx_set_csumflag() is not setting this flag currently, causing the hardware to randomly corrupt IP header during transmission.

This affects injected IPv4 packets that skips kernel IP stack processing (e.g. DHCP), as well as all IPv6 packets, since the driver currently does not offload csum for IPv6.

The fix is to remove all the early return paths from mvneta_tx_set_csumflag() which do not set the MVNETA_TX_CMD_L4_CHECKSUM_NONE flag.

PR: 248306
Submitted by: Mike Cui <cuicui@gmail.com>
Reported by: Mike Cui <cuicui@gmail.com>
2020-08-01 09:40:19 +00:00
..
if_mvneta_fdt.c Implement jumbo frame support in mvneta driver 2020-02-08 13:33:47 +00:00
if_mvneta.c Fix TX csum handling in if_mvneta 2020-08-01 09:40:19 +00:00
if_mvnetareg.h
if_mvnetavar.h Implement jumbo frame support in mvneta driver 2020-02-08 13:33:47 +00:00