diff mbox series

[3/4] doc: add a decsription for MPRQ stride size devarg

Message ID 1585691559-17409-4-git-send-email-akozyrev@mellanox.com (mailing list archive)
State Superseded, archived
Delegated to: Raslan Darawsheh
Headers
Series net/mlx5: add large packet size support to MPRQ |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Alexander Kozyrev March 31, 2020, 9:52 p.m. UTC 
  Provide a descriptin of a newly added mprq_log_stride_size devarg
parameter for specifying a stride size in case of MPRQ Rx is on.

Signed-off-by: Alexander Kozyrev <akozyrev@mellanox.com>
---
 doc/guides/nics/mlx5.rst               | 9 +++++++++
 doc/guides/rel_notes/release_20_05.rst | 1 +
 2 files changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index e13c07d..4e8c130 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -434,6 +434,15 @@  Run-time configuration
 
   The size of Rx queue should be bigger than the number of strides.
 
+- ``mprq_log_stride_size`` parameter [int]
+
+  Log 2 of the size of a stride for Multi-Packet Rx queue. Configuring a smaller
+  stride size can save some memory and reduce probability of a depletion of all
+  available strides due to unreleased packets by an application. If configured
+  value is not in the range of device capability, the default value will be set
+  with a warning message. The default value is 11 which is 2048 bytes per a
+  stride, valid only if ``mprq_en`` is set.
+
 - ``mprq_max_memcpy_len`` parameter [int]
 
   The maximum length of packet to memcpy in case of Multi-Packet Rx queue. Rx
diff --git a/doc/guides/rel_notes/release_20_05.rst b/doc/guides/rel_notes/release_20_05.rst
index c960fd2..1459218 100644
--- a/doc/guides/rel_notes/release_20_05.rst
+++ b/doc/guides/rel_notes/release_20_05.rst
@@ -62,6 +62,7 @@  New Features
 
   * Added support for matching on IPv4 Time To Live and IPv6 Hop Limit.
   * Added support for creating Relaxed Ordering Memory Regions.
+  * Added support for 9000 MTU in Multi-Packet RQ mode.
 
 Removed Items
 -------------