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Navdeep Parhar authored
Notify the TOE driver when when an ICMP type 3 code 4 (Fragmentation needed and DF set) message is received for an offloaded connection. This gives the driver an opportunity to lower the path MTU for the connection and resume transmission, much like what the kernel does for the connections that it handles. Reviewed by: glebius@ Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D29755
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