Hi all,
We are building an SDN/IaaS data plane on ConnectX-7 using DOCA Flow and
need IPv6 Connection Tracking. CT pipe for IPv6 requires the 11-DW jumbo
STE format, which is gated by HCA_CAP_GENERAL_2.format_select_dw_8_6_ext
(full_dw_jumbo_support in drivers/net/mlx5/hws/mlx5dr_cmd.c).
On all three of our standalone ConnectX-7 SKUs (PSIDs MT_0000000838,
MT_0000000840, MT_0000000892, firmware 28.48.1000) this bit reads as 0 in
BOTH GET_CUR and GET_MAX modes. We have verified the bit is not affected
by any documented NV-config TLV (tested ~20 candidates with mlxfwreset).
Questions:
1. Is this capability silicon-locked on standalone ConnectX-7, or could
a future firmware release expose it?
2. The DOCA Flow CT documentation states "BlueField-3 and above is
required for IPv6". Is this permanent product positioning, or is
there a roadmap to enable it on CX-7?
3. For existing CX-7 deployments that need IPv6 stateful CT, is there
a recommended DOCA Flow pattern (e.g. splitting the 5-tuple match
across multiple 8-DW STEs while preserving CT semantics)?
Happy to share full HCA_CAP dumps or any diagnostic output that would
help.
Thanks,
Max Makarov
Volta Cloud
