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sfxge(4): add X2 port modes to bandwidth calculator

Description

sfxge(4): add X2 port modes to bandwidth calculator

Add cases for the new port modes supported by X2 NICs.
Lane bandwidth is calculated for pre-X2 cards so is an
underestimate for X2 in 25G/100G modes.

Submitted by: Richard Houldsworth <rhouldsworth at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D18277

Details

Provenance
arybchikAuthored on
Differential Revision
D18277: sfxge(4): add X2 port modes to bandwidth calculator
Parents
rS341314: sfxge(4): update to current port mode terminology
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