From: Olga Shern <olgas@mellanox.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH] mlx4: update documentation
Date: Sat, 12 Dec 2015 18:20:51 +0200 [thread overview]
Message-ID: <1449937251-24493-1-git-send-email-olgas@mellanox.com> (raw)
-Split "Features" and "Limitations" sections.
-Update limitations with missing information.
-Update prerequisites with supported MLNX_OFED release, firmware and
CPU architectures.
-Enhance usage example with openibd script.
Signed-off-by: Olga Shern <olgas@mellanox.com>
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
doc/guides/nics/mlx4.rst | 24 +++++++++++++++++++-----
1 files changed, 19 insertions(+), 5 deletions(-)
diff --git a/doc/guides/nics/mlx4.rst b/doc/guides/nics/mlx4.rst
index 562db06..62f0c31 100644
--- a/doc/guides/nics/mlx4.rst
+++ b/doc/guides/nics/mlx4.rst
@@ -78,8 +78,8 @@ long as they share the same MAC address.
Compiling librte_pmd_mlx4 causes DPDK to be linked against libibverbs.
-Features and limitations
-------------------------
+Features
+---------
- RSS, also known as RCA, is supported. In this mode the number of
configured RX queues must be a power of two.
@@ -91,11 +91,17 @@ Features and limitations
- 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.
+- Secondary process TX is supported.
-.. break
+Limitations
+-----------
- RSS hash key cannot be modified.
+- RSS RETA cannot be configured
+- RSS always includes L3 (IPv4/IPv6) and L4 (UDP/TCP). They cannot be
+ dissociated.
- Hardware counters are not implemented (they are software counters).
+- Secondary process RX is not supported
Configuration
-------------
@@ -237,8 +243,9 @@ DPDK and must be installed separately:
Currently supported by DPDK:
-- Mellanox OFED **3.0**.
-- Firmware version **2.34.5000** and higher.
+- Mellanox OFED **3.1**.
+- Firmware version **2.35.5100** and higher.
+- Supported architectures: **x86_64** and **POWER8**.
Getting Mellanox OFED
~~~~~~~~~~~~~~~~~~~~~
@@ -272,6 +279,13 @@ devices managed by librte_pmd_mlx4.
modprobe -a ib_uverbs mlx4_en mlx4_core mlx4_ib
+ Alternatively if MLNX_OFED is fully installed, the follwoing script can
+ be run:
+
+ .. code-block:: console
+
+ /etc/init.d/openibd restart
+
.. note::
User space I/O kernel modules (uio and igb_uio) are not used and do
--
1.7.8.2
next reply other threads:[~2015-12-12 16:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-12 16:20 Olga Shern [this message]
2015-12-14 0:00 ` Thomas Monjalon
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