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sfxge: add 7xxx NICs family support

Description

sfxge: add 7xxx NICs family support

Support 7xxx adapters including firmware-assisted TSO and VLAN tagging:

  • Solarflare Flareon Ultra 7000 series 10/40G adapters:
    • Solarflare SFN7042Q QSFP+ Server Adapter
    • Solarflare SFN7142Q QSFP+ Server Adapter
  • Solarflare Flareon Ultra 7000 series 10G adapters:
    • Solarflare SFN7022F SFP+ Server Adapter
    • Solarflare SFN7122F SFP+ Server Adapter
    • Solarflare SFN7322F Precision Time Synchronization Server Adapter
  • Solarflare Flareon 7000 series 10G adapters:
    • Solarflare SFN7002F SFP+ Server Adapter

Support utilities to configure adapters and update firmware.

The work is done by Solarflare developers
(Andy Moreton, Andrew Lee and many others),
Artem V. Andreev <Artem.Andreev at oktetlabs.ru> and me.

Sponsored by: Solarflare Communications, Inc.
MFC after: 2 weeks
Causually read by: gnn
Differential Revision: https://reviews.freebsd.org/D2618

Details