[dpdk-dev] [PATCH v4 6/6] doc: add buffer split feature limitation to mlx5 guide
Viacheslav Ovsiienko
viacheslavo at nvidia.com
Mon Oct 26 12:55:05 CET 2020
The buffer split feature is mentioned in the mlx5 PMD
documentation, the limitation is description is added
as well.
Signed-off-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>
---
doc/guides/nics/mlx5.rst | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 66524f1..8dc7c62 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -59,7 +59,8 @@ Features
- Multi arch support: x86_64, POWER8, ARMv8, i686.
- Multiple TX and RX queues.
-- Support for scattered TX and RX frames.
+- Support for scattered TX frames.
+- Advanced support for scattered Rx frames with tunable buffer attributes.
- IPv4, IPv6, TCPv4, TCPv6, UDPv4 and UDPv6 RSS on any number of queues.
- RSS using different combinations of fields: L3 only, L4 only or both,
and source only, destination only or both.
@@ -187,6 +188,9 @@ Limitations
the device. In case of ungraceful program termination, some entries may
remain present and should be removed manually by other means.
+- Buffer split offload is supported with regular Rx burst routine only,
+ no MPRQ feature or vectorized code can be engaged.
+
- When Multi-Packet Rx queue is configured (``mprq_en``), a Rx packet can be
externally attached to a user-provided mbuf with having EXT_ATTACHED_MBUF in
ol_flags. As the mempool for the external buffer is managed by PMD, all the
--
1.8.3.1
More information about the dev
mailing list