Commit Graph

2 Commits

Author SHA1 Message Date
Navdeep Parhar
24b98f288d cxgbe(4): Overhaul CLIP (Compressed Local IPv6) table management.
- Process the list of local IPs once instead of once per adapter.  Add
  addresses from all VNETs to the driver's list but leave hardware
  updates for later when the global VNET/IFADDR list locks have been
  released.

- Add address to the hardware table synchronously when a CLIP entry is
  requested for an address that's not already in there.

- Provide ioctls that allow userspace tools to manage addresses in the
  CLIP table.

- Add a knob (hw.cxgbe.clip_db_auto) that controls whether local IPs are
  automatically added to the CLIP table or not.

MFC after:	2 weeks
Sponsored by:	Chelsio Communications
2021-05-23 16:07:29 -07:00
John Baldwin
78afed1396 Move CLIP table handling out of TOM and into the base driver.
- Store the clip table in 'struct adapter' instead of in the TOM softc.
- Init the clip table during attach and teardown during detach.
- While here, add a dev.<nexus>.<unit>.misc.clip sysctl to dump the
  CLIP table.

This does mean that we update the clip table even if TOE is not enabled,
but non-TOE things need the CLIP table anyway.

Reviewed by:	np, Krishnamraju Eraparaju @ Chelsio
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D18010
2018-11-29 01:15:53 +00:00