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netmap: make sure rings are disabled during resets

Description

netmap: make sure rings are disabled during resets

Explicitly disable ring synchronization before calling
callbacks that may result in a hardware reset.

Before this patch we relied on capturing the down/up events which,
however, may not be issued by all drivers.

Details

Provenance
vmaffioneAuthored on Apr 17 2021, 2:01 PM
Parents
rGd1de2b05a001: tcp: Rename rfc6675_pipe to sack.revised, and enable by default
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