[dpdk-dev] [PATCH v2] doc: update guide and release notes for mlx5

Olga Shern olgas at mellanox.com
Wed Jul 27 11:27:26 CEST 2016


Signed-off-by: Olga Shern <olgas at mellanox.com>
---
 doc/guides/nics/mlx5.rst               |    7 ++++++-
 doc/guides/rel_notes/release_16_07.rst |   14 ++++++++++++++
 2 files changed, 20 insertions(+), 1 deletions(-)

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 063c4a5..5c10cd3 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -154,6 +154,11 @@ Run-time configuration
   allows to save PCI bandwidth and improve performance at the cost of a
   slightly higher CPU usage.  Enabled by default.
 
+  Supported on:
+
+  - x86_64 with ConnectX4 and ConnectX4 LX
+  - Power8 with ConnectX4 LX
+
 - ``txq_inline`` parameter [int]
 
   Amount of data to be inlined during TX operations. Improves latency.
@@ -234,7 +239,7 @@ DPDK and must be installed separately:
 
 Currently supported by DPDK:
 
-- Mellanox OFED **3.3-1.0.0.0**.
+- Mellanox OFED **3.3-1.0.0.0** and **3.3-2.0.0.0**.
 
 - Minimum firmware version:
 
diff --git a/doc/guides/rel_notes/release_16_07.rst b/doc/guides/rel_notes/release_16_07.rst
index d00a6ed..4b43f8d 100644
--- a/doc/guides/rel_notes/release_16_07.rst
+++ b/doc/guides/rel_notes/release_16_07.rst
@@ -191,6 +191,20 @@ New Features
 
   Live migration of a VM with Virtio and VF PMD's using the bonding PMD.
 
+* **Updated the mlx5 driver.**
+
+  The mlx5 driver was updated with changes including the following:
+
+  * Data path was refactored to bypass Verbs to improve RX and TX performance.
+  * Removed compilation parameters for inline send, ``MLX5_MAX_INLINE``, and
+    added command line parameter instead, ``txq_inline``.
+  * Improved TX scatter gather support:
+    Removed compilation parameter ``MLX5_PMD_SGE_WR_N``.
+    Scatter-gather elements is set to the maximum value the NIC supports.
+    Removed linearization logic, this decreases the memory consumption of the PMD.
+  * Improved jumbo frames support, by dynamically setting RX scatter gather elements
+    according to the MTU and mbuf size,
+    no need for compilation parameter ``MLX5_PMD_SGE_WR_N``
 
 Resolved Issues
 ---------------
-- 
1.7.8.2



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