e1000: Make masks for TCP flag handling during TSO sysctl'able
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Authored by tuexen on Mar 6 2024, 9:32 PM.

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Summary

Add tso_tcp_flags_mask_first_segment, tso_tcp_flags_mask_middle_segment, and tso_tcp_flags_mask_last_segment sysctl-variables to control the handling of TCP flags during TSO.
This allows in particular to change the handling appropriate for classical ECN to an appropriate handling for accurate ECN.