X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=doc%2Fguides%2Fnics%2Fmlx4.rst;h=5326d916e1e5d916da0bc7d3eecf87726b00c28b;hb=0817d41fdb4872aab528c945c2d645bda4a7977e;hp=509ac221cdfc726b781d41ec92489aec1144b01e;hpb=ce07b1514d5961baf59ead7d030b522eb06ea527;p=dpdk.git

diff --git a/doc/guides/nics/mlx4.rst b/doc/guides/nics/mlx4.rst
index 509ac221cd..5326d916e1 100644
--- a/doc/guides/nics/mlx4.rst
+++ b/doc/guides/nics/mlx4.rst
@@ -85,14 +85,6 @@ These options can be modified in the ``.config`` file.
   adds additional run-time checks and debugging messages at the cost of
   lower performance.
 
-- ``CONFIG_RTE_LIBRTE_MLX4_TX_MP_CACHE`` (default **8**)
-
-  Maximum number of cached memory pools (MPs) per TX queue. Each MP from
-  which buffers are to be transmitted must be associated to memory regions
-  (MRs). This is a slow operation that must be cached.
-
-  This value is always 1 for RX queues since they use a single MP.
-
 Environment variables
 ~~~~~~~~~~~~~~~~~~~~~
 
@@ -150,6 +142,9 @@ Limitations
   The ability to enable/disable CRC stripping requires OFED version
   4.3-1.5.0.0 and above  or rdma-core version v18 and above.
 
+- TSO (Transmit Segmentation Offload) is supported in OFED version
+  4.4 and above.
+
 Prerequisites
 -------------
 
@@ -218,7 +213,7 @@ Current RDMA core package and Linux kernel (recommended)
 Mellanox OFED as a fallback
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-- `Mellanox OFED`_ version: **4.2, 4.3**.
+- `Mellanox OFED`_ version: **4.4, 4.5**.
 - firmware version: **2.42.5000** and above.
 
 .. _`Mellanox OFED`: http://www.mellanox.com/page/products_dyn?product_family=26&mtag=linux_sw_drivers
@@ -378,6 +373,12 @@ Performance tuning
         The XXX can be different on different systems. Make sure to configure
         according to the setpci output.
 
+6. To minimize overhead of searching Memory Regions:
+
+   - '--socket-mem' is recommended to pin memory by predictable amount.
+   - Configure per-lcore cache when creating Mempools for packet buffer.
+   - Refrain from dynamically allocating/freeing memory in run-time.
+
 Usage example
 -------------