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This commit patches create_pktmbuf_pool() to guarantee that mbufs have enough dataroom for the largest frame possible, so all mbufs in Gatekeeper are single segment.
All mbufs in Gatekeeper are single segment, so scatter is not needed.
All mbufs in Gatekeeper are single segment.
See issue #730 for more information on the bug that this workaround circumvents.
AltraMayor
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Unless all mbufs are single segment, PMD drivers that support vectorial receiving and transmission won't enable those vectorial paths. Notice that having single-segment mbufs is not the only requirement for vectorial paths; it's a big requirement.
This pull request also includes an MTU workaround for the ICE driver.
This pull request closes #698.