74 lines
3.6 KiB
TeX
74 lines
3.6 KiB
TeX
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\begin{longtable}{ p{3.0cm} | p{11cm} }
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\caption{Explanation of abbreviations from \autoref{fig:iba_packet_format}. More details on the content of the different packets can be found in the \gls{iba} specification~\cite{infinibandvol1}.}\label{tab:packet_abbreviations}
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\vspace{3mm}
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\endfirsthead
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\endhead
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\hlineB{3}
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\Tstrut
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\textbf{Abbreviation} & \textbf{Description}\\
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\hhline{=|=}
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\Tstrut
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\acrshort{lrh} & \textit{\acrlong{lrh}}: detailed information on this header is provided in a separate paragraph below.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{grh} & \textit{\acrlong{grh}}: detailed information on this header is provided in a separate paragraph below.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{bth} & \textit{\acrlong{bth}}: Every packet in the \gls{iba} contains this header. It contains fields for the \gls{iba} transport and holds, i.a., the packet type, the destination queue pair number, and the packet sequence number.
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\Tstrut\Bstrut\\
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\hline
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\Tstrut
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\acrshortpl{eth} & \textit{\acrlongpl{eth}}: These headers are optional and are used if applicable, based on the packet type in the \acrshort{bth}\@. All following headers which end with \textit{ETH} are extended transport headers.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{rdeth} & \textit{\acrlong{rdeth}}: This header contains the end-to-end context, used with the reliable datagram service type.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{deth} & \textit{\acrlong{deth}}: This header contains the queue key and the source queue pair number for datagram transfers.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{reth} & \textit{\acrlong{reth}}: This header contains the virtual address, remote key, and DMA length for an \gls{rdma} operation.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{atomiceth} & \textit{\acrlong{atomiceth}}: This header is used for atomic operations and is similar to the \acrshort{reth}\@. Instead of a length field, it contains a swap (or add) field and a compare data field.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{aeth} & \textit{\acrlong{aeth}}: This header serves as acknowledge field in \gls{rdma} read response first, \gls{rdma} read response last, \gls{rdma} read response only, and acknowledge packets.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{atomicacketh} & \textit{\acrlong{atomicacketh}}: This header is similar to the \acrshort{aeth}, but for atomic acknowledgments. It only contains the original remote data.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{imm} & \textit{\acrlong{imm}}: This optional block can be used to add \SI{32}{\bit} of custom data to \textit{send} or \textit{\gls{rdma} write} packets. The containing \SI{32}{\bit} of data will be visible in the receive completion queue element.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{ieth} & \textit{\acrlong{ieth}}: This header contains a remote key which will be used to invalidate a remote memory region.
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\Tstrut\Bstrut\\
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\hline
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\Tstrut
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Payload & \textit{Payload}: This is the actual payload to be sent. This field will be as big as the \gls{mtu} of the network.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{icrc} & \textit{\acrlong{icrc}}: This is the redundancy check for blocks that do not change during their transmission from source to destination.
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\newline
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The \gls{crc} which is used is the same as in the Ethernet standard: the CRC-32 with the polynomial \texttt{0x04C11DB7}.
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\Bstrut\\
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\hline
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\Tstrut
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\acrshort{vcrc} & \textit{\acrlong{vcrc}}: This is the redundancy check for blocks that do change during their transmissing from source to destination.
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\Tstrut\\
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\hlineB{3}
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\end{longtable}
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