DPDK Interfaces Configuration [Документация VAS Experts]

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en:dpi:dpi_components:platform:dpi_config [2025/04/29 07:42] elena.krasnobryzhen:dpi:dpi_components:platform:dpi_config [2026/03/02 14:28] (current) – [Ports configuration] elena.krasnobryzh
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 ===== Ports configuration ===== ===== Ports configuration =====
 +
 +<note important>
 +Please note that Mellanox network interface cards cannot be switched to DPDK using the driverctl utility — their driver is installed in a different way. They also remain under operating system control, therefore the interfaces will still appear in the output of ip/ipconfig utilities.  
 +If it is necessary to install a driver to support DPDK on Mellanox network cards, please [[en:dpi:techsupport_info|contact technical support]].
 +</note>
  
 The network cards that Stingray will work with are removed from the control of the operating system and therefore are not visible as Ethernet devices to the operating system.  The network cards that Stingray will work with are removed from the control of the operating system and therefore are not visible as Ethernet devices to the operating system. 
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   * RX queue count = 1   * RX queue count = 1
   * TX queue count = The processing threads write directly each to its own TX queue card.   * TX queue count = The processing threads write directly each to its own TX queue card.
 +
 +==== dpdk_engine=6: RSS dispatchers per bridge ====
 +<note important>This ''dpdk_engine'' is available starting from version 14.0!</note>
 +This engine is intended for configurations with multiple bridges (dev1:dev2:dev3:...) for 100G+ cards.
 +
 +<code>
 +in_dev=41-00.0:02-00.0:c3-00.0:c1-00.0:04-00.0:04-00.1
 +out_dev=41-00.1:41-00.1:02-00.1:02-00.1:c3-00.1:c3-00.1
 +
 +dpdk_engine=6
 +dpdk_rss=4
 +num_threads=64
 +
 +dpdk_mempool_size=256000
 +mem_tracking_flow=40000000
 +mem_tracking_ip=40000000
 +dpdk_emit_mempool_size=256000
 +mem_ssl_parsers=18000000
 +mem_http_parsers=512000
 +</code>
 +This example creates 24 dispatcher threads — 4 dispatchers per bridge.
 +
 +<note tip>
 +Total number of dispatchers = ''dpdk_rss'' * number of bridges.\\
 +For 100G+ NICs, with a ratio of 1 dispatcher per 10G, the minimum number of dispatchers is 10.\\
 +Starting from version 14.0, the maximum number of dispatchers is 32.
 +</note>
 +
 +
 +On-stick devices are supported.\\
 +SSG configures the cards as follows:
 +  * RX queue count = ''dpdk_rss''
 +  * TX queue count = number of processing threads. Processing threads write directly to their own TX queue on the card.
 +