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doc: add more details about mlx5 offloads

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Add firmware config for MPLS and DevX (required by LRO and DR).

Add a table for queue offloads requirements.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Raslan Darawsheh <rasland@mellanox.com>
This commit is contained in:
Thomas Monjalon 2019-08-05 17:32:22 +02:00 committed by Raslan Darawsheh
parent bdc3a54225
commit 4710b1133e
1 changed files with 30 additions and 5 deletions
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35
doc/guides/nics/mlx5.rst
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@ -172,10 +172,13 @@ Limitations
- can be applied to VF ports only.
- must specify PF port action (packet redirection from VF to PF).
- ICMP/ICMP6 code/type matching cannot be supported togeter with IP-in-IP tunnel.
- ICMP/ICMP6 code/type matching, IP-in-IP and MPLS flow matching are all
mutually exclusive features which cannot be supported together
(see :ref:`mlx5_firmware_config`).
- LRO:
- Requires DevX to be enabled.
- KEEP_CRC offload cannot be supported with LRO.
- The first mbuf length, without head-room, must be big enough to include the
TCP header (122B).
@ -582,6 +585,8 @@ Run-time configuration
If this parameter is not specified, by default PMD will set
the smallest value supported by HW.
.. _mlx5_firmware_config:
Firmware configuration
~~~~~~~~~~~~~~~~~~~~~~
@ -616,6 +621,10 @@ Below are some firmware configurations listed.
NUM_OF_VFS=<max>
- enable DevX (required by Direct Rules and other features)::
UCTX_EN=1
- aggressive CQE zipping::
CQE_COMPRESSION=1
@ -629,6 +638,10 @@ Below are some firmware configurations listed.
FLEX_PARSER_PROFILE_ENABLE=0
- enable MPLS flow matching::
FLEX_PARSER_PROFILE_ENABLE=1
- enable ICMP/ICMP6 code/type fields matching::
FLEX_PARSER_PROFILE_ENABLE=2
@ -940,10 +953,22 @@ Performance tuning
.. _mlx5_offloads_support:
Supported hardware offloads using rte_flow API
----------------------------------------------
Supported hardware offloads
---------------------------
.. table:: Supported hardware offloads using rte_flow API
.. table:: Minimal SW/HW versions for queue offloads
============== ===== ===== ========= ===== ========== ==========
Offload DPDK Linux rdma-core OFED firmware hardware
============== ===== ===== ========= ===== ========== ==========
common base 17.11 4.14 16 4.2-1 12.21.1000 ConnectX-4
checksums 17.11 4.14 16 4.2-1 12.21.1000 ConnectX-4
Rx timestamp 17.11 4.14 16 4.2-1 12.21.1000 ConnectX-4
TSO 17.11 4.14 16 4.2-1 12.21.1000 ConnectX-4
LRO 19.08 N/A N/A 4.6-4 16.25.6406 ConnectX-5
============== ===== ===== ========= ===== ========== ==========
.. table:: Minimal SW/HW versions for rte_flow offloads
+-----------------------+-----------------+-----------------+
| Offload | with E-Switch | with vNIC |
@ -976,7 +1001,7 @@ Supported hardware offloads using rte_flow API
| | set_mac_dst) | | |
+-----------------------+-----------------+-----------------+
| Jump | | DPDK 19.05 | | DPDK 19.02 |
| | | OFED 4.6-2 | | OFED 4.6-2 |
| | | OFED 4.6-4 | | OFED 4.6-4 |
| | | rdma-core 24 | | N/A |
| | | ConnectX-5 | | ConnectX-5 |
+-----------------------+-----------------+-----------------+