ethdev: fix max Rx packet length

[dpdk.git] / doc / guides / nics / mlx5.rst

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index c3883c0..7b54050 100644 (file)
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -202,6 +202,7 @@ Limitations
 
   Last reserved 8-bits matching is only supported When using DV flow
   engine (``dv_flow_en`` = 1).
+  For ConnectX-5, the UDP destination port must be the standard one (4789).
   Group zero's behavior may differ which depends on FW.
   Matching value equals 0 (value & mask) is not supported.
 
@@ -422,20 +423,20 @@ Limitations
 - Meter:
 
   - All the meter colors with drop action will be counted only by the global drop statistics.
-  - Green color is not supported with drop action.
-  - Yellow detection is not supported.
+  - Yellow detection is only supported with ASO metering.
   - Red color must be with drop action.
   - Meter statistics are supported only for drop case.
-  - Meter yellow color detection is not supported.
   - A meter action created with pre-defined policy must be the last action in the flow except single case where the policy actions are:
      - green: NULL or END.
      - yellow: NULL or END.
      - RED: DROP / END.
   - The only supported meter policy actions:
-     - green: QUEUE, RSS, PORT_ID, JUMP, MARK and SET_TAG.
-     - yellow: must be empty.
+     - green: QUEUE, RSS, PORT_ID, REPRESENTED_PORT, JUMP, DROP, MARK and SET_TAG.
+     - yellow: QUEUE, RSS, PORT_ID, REPRESENTED_PORT, JUMP, DROP, MARK and SET_TAG.
      - RED: must be DROP.
+  - Policy actions of RSS for green and yellow should have the same configuration except queues.
   - meter profile packet mode is supported.
+  - meter profiles of RFC2697, RFC2698 and RFC4115 are supported.
 
 - Integrity:
 
@@ -605,9 +606,9 @@ Driver options
   and each stride receives one packet. MPRQ can improve throughput for
   small-packet traffic.
 
-  When MPRQ is enabled, max_rx_pkt_len can be larger than the size of
+  When MPRQ is enabled, MTU can be larger than the size of
   user-provided mbuf even if DEV_RX_OFFLOAD_SCATTER isn't enabled. PMD will
-  configure large stride size enough to accommodate max_rx_pkt_len as long as
+  configure large stride size enough to accommodate MTU as long as
   device allows. Note that this can waste system memory compared to enabling Rx
   scatter and multi-segment packet.
 
@@ -1000,6 +1001,19 @@ Driver options
 
   Enabled by default.
 
+- ``mr_mempool_reg_en`` parameter [int]
+
+  A nonzero value enables implicit registration of DMA memory of all mempools
+  except those having ``RTE_MEMPOOL_F_NON_IO``. This flag is set automatically
+  for mempools populated with non-contiguous objects or those without IOVA.
+  The effect is that when a packet from a mempool is transmitted,
+  its memory is already registered for DMA in the PMD and no registration
+  will happen on the data path. The tradeoff is extra work on the creation
+  of each mempool and increased HW resource use if some mempools
+  are not used with MLX5 devices.
+
+  Enabled by default.
+
 - ``representor`` parameter [list]
 
   This parameter can be used to instantiate DPDK Ethernet devices from
@@ -1476,7 +1490,7 @@ the DPDK application.
 
         echo -n "<device pci address" > /sys/bus/pci/drivers/mlx5_core/unbind
 
-5. Enbale switchdev mode::
+5. Enable switchdev mode::
 
         echo switchdev > /sys/class/net/<net device>/compat/devlink/mode
 
@@ -1739,6 +1753,16 @@ Supported hardware offloads
    |                       | |  rdma-core 26 | | rdma-core 26  |
    |                       | |  ConnectX-5   | | ConnectX-5    |
    +-----------------------+-----------------+-----------------+
+   | ASO Metering          | |  DPDK 21.05   | | DPDK 21.05    |
+   |                       | |  OFED 5.3     | | OFED 5.3      |
+   |                       | |  rdma-core 33 | | rdma-core 33  |
+   |                       | |  ConnectX-6 Dx| | ConnectX-6 Dx |
+   +-----------------------+-----------------+-----------------+
+   | Metering Hierarchy    | |  DPDK 21.08   | | DPDK 21.08    |
+   |                       | |  OFED 5.3     | | OFED 5.3      |
+   |                       | |  N/A          | | N/A           |
+   |                       | |  ConnectX-6 Dx| | ConnectX-6 Dx |
+   +-----------------------+-----------------+-----------------+
    | Sampling              | |  DPDK 20.11   | | DPDK 20.11    |
    |                       | |  OFED 5.1-2   | | OFED 5.1-2    |
    |                       | |  rdma-core 32 | | N/A           |