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cxgbe(4): Do not use pack boundary > 512B unless it is explicitly

Description

cxgbe(4): Do not use pack boundary > 512B unless it is explicitly
requested.

This is a tradeoff between PCIe efficiency during large packet rx and
packing efficiency during small packet rx.

MFC after: 1 week
Sponsored by: Chelsio Communications

Details

Provenance
npAuthored on
Parents
rS357475: cxgbe(4): Initialize the rx buffer's metadata on first-use and not on
Branches
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