From f78b86c323784d50f055cd0cd7ce46fd247d3b35 Mon Sep 17 00:00:00 2001 From: Jiawei Wang Date: Tue, 13 Oct 2020 17:11:51 +0300 Subject: [PATCH] doc: add sample flow limitation in mlx5 guide Add description about the sample flow limitation. Sample Flow supports in NIC-Rx and E-Switch domains. Due to Metadata register c0 is deleted while doing the loopback, so that only support forward the sampling packet into E-Switch manager port, no additional action support in sample flow. Add the offloads minimum versions for new sampling feature. Signed-off-by: Jiawei Wang Acked-by: Viacheslav Ovsiienko --- doc/guides/nics/mlx5.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index a174cdd5f5..a071db276f 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -311,6 +311,12 @@ Limitations for some NICs (such as ConnectX-6 Dx and BlueField 2). The capability bit ``scatter_fcs_w_decap_disable`` shows NIC support. +- Sample flow: + + - Supports ``RTE_FLOW_ACTION_TYPE_SAMPLE`` action only within NIC Rx and E-Switch steering domain. + - The E-Switch Sample flow must have the eswitch_manager VPORT destination (PF or ECPF) and no additional actions. + - For ConnectX-5, the ``RTE_FLOW_ACTION_TYPE_SAMPLE`` is typically used as first action in the E-Switch egress flow if with header modify or encapsulation actions. + Statistics ---------- @@ -1452,6 +1458,11 @@ Supported hardware offloads | | | rdma-core 26 | | rdma-core 26 | | | | ConnectX-5 | | ConnectX-5 | +-----------------------+-----------------+-----------------+ + | Sampling | | DPDK 20.11 | | DPDK 20.11 | + | | | OFED 5.2 | | OFED 5.2 | + | | | rdma-core 32 | | rdma-core 32 | + | | | ConnectX-5 | | ConnectX-5 | + +-----------------------+-----------------+-----------------+ Notes for metadata ------------------ -- 2.20.1