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81cd3891f0
16B Management Packets (L4=0x08) replace the BTH and DETH of normal MAD packet packets with a header containing the the source and destination queue pair numbers; fields that were originally retrieved from the BTH/DETH are now populated from this header as well as from the 16B LRH (e.g. pkey). 16B Management Packets are used as an optimized management format on 16B fabrics. These management packets have an opcode of IB_OPCODE_UD_SEND_ONLY, a fixed 3Byte pad, and a header length of 24Bytes. The decision as to when we send a management packet is based upon either the source or destination queue pair number being 0 or 1. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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