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MESA-2023.09

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@allannielsen allannielsen released this 28 Sep 07:21
· 1683 commits to master since this release
v2023.09
0c69e07 
Version:          MESA-2023.09
Previous Version: MESA-2023.06
Date:             2023-09-29
Description:      Roadmap release

MESA

Adding support for LAN969x (BETA)

This is the first release introducing the LAN969x family.

The LAN969x family consist of the following SKUs:

NAME Chip ID Description
LAN9694 0x9694 40G Ethernet switch
LAN9696 0x9696 60G Ethernet switch
LAN9698 0x9698 100G Ethernet switch
LAN9694TSN 0x9695 40G TSN Ethernet switch
LAN9696TSN 0x9697 60G TSN Ethernet switch
LAN9698TSN 0x9699 100G TSN Ethernet switch
LAN9694RED 0x969A 40G TSN Ethernet switch with PRP/HSR
LAN9696RED 0x969B 60G TSN Ethernet switch with PRP/HSR
LAN9698RED 0x969C 100G TSN Ethernet switch with PRP/HSR
LAN9691VAO 0x9691 40G Automotive TSN Ethernet switch
LAN9692VAO 0x9692 65G Automotive TSN Ethernet switch
LAN9693VAO 0x9693 100G Automotive TSN Ethernet switch

LAN969x-family in this release can be used for early access to evaluate the
features and/or start SW integration. It is not suitable for production use.
Only a limited amount of testing has been done, and all testing has been focused
on the LAN9698RED variant (highest bandwidth and superset of features). This
means that the capability system may advertise capabilities not
available on lower SKUs. This will be addressed in future releases.

Build configurations

All 12 SKUs in the LAN969x family are supported by a single build configuration
called lan969x.

NOTE: The system also includes a lan969x_lm which is only
supported in the context of LMStaX. Do not use this in other applications than
LMStaX as the SW feature-set here may be changed in a non-backwards compatible
way.

The LAN969x family of chips has been designed to be as binary compatible with
SparX-5 as possible, and initial steps have been taken to support both families
with the same build target (lan969x). This is however still not fully tested,
and we recommend SparX-5 designs to stay with the designated vsc754x and
vsc755x build targets.

Feature: HSR/PRP support (MESA_CAP_L2_REDBOX_CNT)

The LAN969xRED variants include a new hardware block called RedBox (look up
the datasheet for additional details), which is designed to support HSR and PRP
handling in HW.

The HSR/PRP offering is designed against the IEC 62439-3 standard. Both HSR and PRP are
redundancy technologies which at the TX side will replicate all frames in two
copies and at the RX side do the elimination of the additional frames. HSR is
used to build rings where frames are sent and received in both directions in the
ring, and PRP is used to build parallel network trees.

Feature: OT/IT support (MESA_CAP_QOS_OT)

The LAN969x family of SKUs introduces a new feature called OT/IT (advertised by
the MESA_CAP_QOS_OT capability).

This is a feature to allow serving the normal IT network and the industrial OT
(operational technology - fieldbus and friends) on the same physical switches.

To support this, the ingress classifier has been extended with a flag allowing
classification of certain traffic as OT. This can either be done with VLANs using
mesa_vlan_vid_conf_t::ot or TCAMs using mesa_iflow_conf_t::ot.

Once traffic is classified, it will end up in two different queue systems, and the
mesa_qos_port_conf_t structure has been extended to control the OT and IT
scheduling elements individually.

Feature: Dynamic serdes/port configuration (MESA_CAP_PORT_DYNAMIC)

The LAN969x family of SKUs introduce a new feature called PORT_DYNAMIC (advertised by
the MESA_CAP_PORT_DYNAMIC capability).

This allow to reconfigure a serdes at runtime to different port configurations
(example a 10G serdes can be used as a QSGMII providing 4 ports, or it can be
used as a single 10G interfaces).

This is intended for modular designs where different types of port/interface
cards can be plugged/unplugged without rebooting the switch, and without
impacting the traffic flows on the other ports.

Feature: Bulk port configuration (MESA_CAP_PORT_CONF_BULK)

SparX-5 and LAN969x families of SKUs now supports bulk port configurations.

This is supported to optimize the boot-time. Bringing up serdes and ports
requires many steps of interaction with the HW. Some of these steps requires the
API to sleep and poll for a given status. By bringing up multiple ports in
parallel multiple serdes can then be sleep in parallel, which improve the boot
time.

To use this feature call the mesa_port_conf_bulk_set function before and after
configuring the ports.

Feature: EtherCAT segment adaptation (MESA_CAP_ACL_MAC_IGR)

This capability indicates whether the device supports ACL actions for ingress
MAC address updates.

These actions can be used for EtherCAT segment adaptation support.

Variant: MRP API extensions

Two new capabilities: MESA_CAP_MRP_V0 and MESA_CAP_MRP_V1 has been
introduced in the MRP API to advertise changes introduced in LAN969x family.

Most of the APIs are shared, but a few differences in the chip architecture from
LAN966x to LAN969x needs to be addressed at application level. MESA_CAP_MRP_V0
is marking the behavioral equal to what we have in earlier releases supported by
LAN966x, and the MESA_CAP_MRP_V1 indicates the needed changes to support
LAN969x.

MEPA

General

This release contains following contents:

  • vsc8574 support and new feature
  • VSC8584 new feature
  • VSC8512/22 bug fix
  • VSC8258 new feature
  • LAN8770 driver support

API Enhancements

New Features

VSC8574

  • MEPA-365 VSC8574 support
  • MEPA-376 Temperature Sensor support

VSC8584

  • MEPA-314 FEFI feature support with MAC and Media link status handling for 1G PHYs

LAN8770

  • LAN87-87 Add MEPA API support
  • LAN87-107 Add MEPA TC10 support

Bug Fixes

VSC8512

  • MEPA-428 Using MEPA, unable to get VSC8512/22 to initialize properly

BSP

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