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Add network QoS support for PCP to iscsi initiator.

Description

Add network QoS support for PCP to iscsi initiator.

Make the Ethernet PCP codepoint configurable
for L2 local traffic, to allow lower latency for
iSCSI block IO. This addresses the initiator
side only.

Reviewed by: mav, trasz, bcr
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D26739

Details

Provenance
rscheffAuthored on
Reviewer
mav
Differential Revision
D26739: Add network QoS support for PCP to iscsi initiator.
Parents
rS367022: Fix asymmetry in devstat(9) calls by GEOM.
Branches
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