ceph/src/spdk/dpdk/doc/guides/compressdevs/overview.rst

   1 ..  SPDX-License-Identifier: BSD-3-Clause
   2     Copyright(c) 2018 Intel Corporation.
   3
   4 Compression Device Supported Functionality Matrices
   5 ===================================================
   6
   7 Supported Feature Flags
   8 -----------------------
   9
  10 .. _table_compression_pmd_features:
  11
  12 .. include:: overview_feature_table.txt
  13
  14 .. Note::
  15
  16    - "Pass-through" feature flag refers to the ability of the PMD
  17      to let input buffers pass-through it, copying the input to the output,
  18      without making any modifications to it (no compression done).
  19
  20    - "OOP SGL In SGL Out" feature flag stands for
  21      "Out-of-place Scatter-gather list Input, Scatter-gather list Output",
  22      which means PMD supports different scatter-gather styled input and output buffers
  23      (i.e. both can consists of multiple segments).
  24
  25    - "OOP SGL In LB Out" feature flag stands for
  26      "Out-of-place Scatter-gather list Input, Linear Buffers Output",
  27      which means PMD supports input from scatter-gathered styled buffers, outputting linear buffers
  28      (i.e. single segment).
  29
  30    - "OOP LB In SGL Out" feature flag stands for
  31      "Out-of-place Linear Buffers Input, Scatter-gather list Output",
  32      which means PMD supports input from linear buffer, outputting scatter-gathered styled buffers.