Lines Matching full:dsa

603 3.2.1 DSA (Distributed Switch Architecture) switches
608 a port multiplier with optional forwarding acceleration features.  Each DSA
613 When a DSA switch is attached to a host port, PTP synchronization has to
615 jitter between the host port and its PTP partner. For this reason, some DSA
618 measure wire and PHY propagation latencies. Timestamping DSA switches are
620 for the fact that the DSA interfaces are in fact virtual in terms of network
622 interfaces of a DSA switch to share the same PHC.
624 By design, PTP timestamping with a DSA switch does not need any special
626 host port also supports PTP timestamping, DSA will take care of intercepting
630 anybody else except for the DSA switch port must be prevented from doing so.
632 In code, DSA provides for most of the infrastructure for timestamping already,
651   available in-band (through metadata in the DSA header, or attached in other
654   sleepable context. In that case, it is the responsibility of the DSA driver
661 hence they do not have a representation in terms of a network interface as DSA
672 driver.  Therefore, as opposed to DSA switches, modifications need to be done
685   will be called now, to determine, using logic very similar to DSA, whether
686   deferral for RX timestamping is necessary.  Again like DSA, it becomes the
717 Stacked PHCs, especially DSA (but not only) - since that doesn't require any
725 Any TX timestamping logic, be it a plain MAC driver, a DSA switch driver, a PHY