1. Compression Device Supported Functionality Matrices

1.1. Supported Feature Flags

Table 1.11 Features availability in compression drivers

Feature	i s a l	m l x 5	n i t r o x	o c t e o n t x	q a t	u a d k	z l i b
HW Accelerated		Y	Y	Y	Y	Y
CPU SSE	Y
CPU AVX	Y
CPU AVX2	Y
CPU AVX512	Y
CPU NEON
Stateful Compression			Y
Stateful Decompression			Y		Y
Pass-through							Y
OOP SGL In SGL Out	Y		Y	Y	Y
OOP SGL In LB Out	Y		Y	Y	Y
OOP LB In SGL Out	Y		Y	Y	Y
Deflate	Y	Y	Y	Y	Y	Y	Y
LZS
LZ4		Y
Adler32	Y	Y	Y		Y
Crc32	Y	Y	Y		Y	N
Adler32&Crc32		Y			Y
xxHash32		Y
Fixed	Y	Y	Y	Y	Y	Y	Y
Dynamic	Y	Y	Y	Y	Y	Y	Y
LZ4 Dictionary ID
LZ4 Content Checksum
LZ4 Content Size
LZ4 Block Checksum		Y
LZ4 Block Independence		Y

Note

• “Pass-through” feature flag refers to the ability of the PMD to let input buffers pass-through it, copying the input to the output, without making any modifications to it (no compression done).
• “OOP SGL In SGL Out” feature flag stands for “Out-of-place Scatter-gather list Input, Scatter-gather list Output”, which means PMD supports different scatter-gather styled input and output buffers (i.e. both can consists of multiple segments).
• “OOP SGL In LB Out” feature flag stands for “Out-of-place Scatter-gather list Input, Linear Buffers Output”, which means PMD supports input from scatter-gathered styled buffers, outputting linear buffers (i.e. single segment).
• “OOP LB In SGL Out” feature flag stands for “Out-of-place Linear Buffers Input, Scatter-gather list Output”, which means PMD supports input from linear buffer, outputting scatter-gathered styled buffers.