rte_bbdev_op_turbo_dec - Man Page

#include <rte_bbdev_op​.h>

Operation structure for Turbo decode​. An operation can be performed on one CB at a time "CB-mode"​. An operation can be performed on one or multiple CBs that logically belong to one TB "TB-mode"​. The provided K size parameter of the CB is its size coming from the decode operation​. CRC24A/B check is requested by the application by setting the flag RTE_BBDEV_TURBO_CRC_TYPE_24B for CRC24B check or CRC24A otherwise​. In TB-mode, BBDEV concatenates the decoded CBs one next to the other with relevant CRC24B in between​.

The input encoded CB data is the Virtual Circular Buffer data stream, wk, with the null padding included as described in 3GPP TS 36​.212 section 5​.1​.4​.1​.2 and shown in 3GPP TS 36​.212 section 5​.1​.4​.1 Figure 5​.1​.4-1​. The size of the virtual circular buffer is 3*Kpi, where Kpi is the 32 byte aligned value of K, as specified in 3GPP TS 36​.212 section 5​.1​.4​.1​.1​.

Each byte in the input circular buffer is the LLR value of each bit of the original CB​.

Hard output is a mandatory capability that all BBDEV PMDs support​. This is the decoded CBs of K sizes (CRC24A/B is the last 24-bit in each decoded CB)​. Soft output is an optional capability for BBDEV PMDs​. If supported, an LLR rate matched output is computed in the soft_output buffer structure​.

The output mbuf data structure is expected to be allocated by the application with enough room for the output data​.

Definition at line 430 of file rte_bbdev_op​.h​.

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