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doc: mention the limited number of RX/TX descriptors on Intel NICs

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Ticket: 6748
pull/10413/head
Lukas Sismis 1 year ago committed by Victor Julien
parent c65ff35819
commit 356f9ffa13
1 changed files with 5 additions and 1 deletions
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doc/userguide/configuration/suricata-yaml.rst
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@ -2139,6 +2139,10 @@ To be able to run DPDK on Intel cards, it is required to change the default
Intel driver to either `vfio-pci` or `igb_uio` driver. The process is Intel driver to either `vfio-pci` or `igb_uio` driver. The process is
described in `DPDK manual page regarding Linux drivers described in `DPDK manual page regarding Linux drivers
<https://doc.dpdk.org/guides/linux_gsg/linux_drivers.html>`_. <https://doc.dpdk.org/guides/linux_gsg/linux_drivers.html>`_.
The Intel NICs have the amount of RX/TX descriptors capped at 4096.
This should be possible to change by manually compiling the DPDK while
changing the value of respective macros for the desired drivers
(e.g. IXGBE_MAX_RING_DESC/I40E_MAX_RING_DESC).
DPDK is natively supported by Mellanox and thus their NICs should work DPDK is natively supported by Mellanox and thus their NICs should work
"out of the box". "out of the box".

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