[dpdk-dev] [PATCH v2 23/23] doc: update mlx4 documentation following MOFED 3.0 changes
Adrien Mazarguil
adrien.mazarguil at 6wind.com
Tue Jun 30 11:28:09 CEST 2015
- Add RX/TX L3/L4 checksum offloading and validation.
- Update kernel module parameters section.
- Update prerequisites for MOFED and firmware versions.
- Remove optimized external libraries section. MOFED now provides enhanced
support directly without having to install modified libraries.
Signed-off-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
---
doc/guides/nics/mlx4.rst | 29 ++++++-----------------------
1 file changed, 6 insertions(+), 23 deletions(-)
diff --git a/doc/guides/nics/mlx4.rst b/doc/guides/nics/mlx4.rst
index ac2dd56..c33aa38 100644
--- a/doc/guides/nics/mlx4.rst
+++ b/doc/guides/nics/mlx4.rst
@@ -84,12 +84,13 @@ Features and limitations
- All multicast mode is supported.
- Multiple MAC addresses (unicast, multicast) can be configured.
- Scattered packets are supported for TX and RX.
+- Inner L3/L4 (IP, TCP and UDP) TX/RX checksum offloading and validation.
+- Outer L3 (IP) TX/RX checksum offloading and validation for VXLAN frames.
.. break
- RSS hash key cannot be modified.
- Hardware counters are not implemented (they are software counters).
-- Checksum offloads are not supported yet.
Configuration
-------------
@@ -175,9 +176,8 @@ below.
- **-1**: force device-managed flow steering (DMFS).
- **-7**: configure optimized steering mode to improve performance with the
- following limitation: Ethernet frames with the port MAC address as the
- destination cannot be received, even in promiscuous mode. Additional MAC
- addresses can still be set by ``rte_eth_dev_mac_addr_addr()``.
+ following limitation: VLAN filtering is not supported with this mode.
+ This is the recommended mode in case VLAN filter is not needed.
Prerequisites
-------------
@@ -232,8 +232,8 @@ DPDK and must be installed separately:
Currently supported by DPDK:
-- Mellanox OFED **2.4-1**.
-- Firmware version **2.33.5000** and higher.
+- Mellanox OFED **3.0**.
+- Firmware version **2.34.5000** and higher.
Getting Mellanox OFED
~~~~~~~~~~~~~~~~~~~~~
@@ -255,23 +255,6 @@ required from that distribution.
this DPDK release was developed and tested against is strongly
recommended. Please check the `prerequisites`_.
-Getting libibverbs and libmlx4 from DPDK.org
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Based on Mellanox OFED, optimized libibverbs and libmlx4 versions can be
-optionally downloaded from DPDK.org:
-
-`<http://www.dpdk.org/download/mlx4>`_
-
-Some enhancements are done for better performance with DPDK applications and
-are not merged upstream yet.
-
-Since it is partly achieved by tuning compilation options to disable features
-not needed by DPDK, linking these libraries statically and avoid system-wide
-installation is the preferred method.
-
-Installation documentation is available from the above link.
-
Usage example
-------------
--
2.1.0
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