K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2009-05-18T17:08:57.265019Z
K 7
svn:log
V 1290
Further refinement of netisr2:

- Add netisr2_getqlimit() and netisr2_setqlimit() interfaces to allow
  protocols to query and manipulate per-workstream queue depth limits.
  This is required for routing socket and IPv4 netisrs which currently
  offer this functionality.

- Add netisr2_getqdrops() and netisr2_clearqdrops() interfaces to allow
  protocols to query drops across CPUs, as well as clear drop
  statistics.  This is required for IPv4.

- Use u_int64_t rather than u_int for stats.

- Rather than passing in each parameter individually for
  netisr2_register(), netisr2_unregister(), define a public struct
  netisr_handler, with padding, to describe protocols.

- Explicitly enumerate policies supported by netisr2, rather than
  deriving them from implemented function pointers; this allows multiple
  policies to depend on the same function pointers if desired.  We
  implement three policies now: NETISR_POLICY_SOURCE, NETISR_POLICY_FLOW,
  NETISR_POLICY_CPU.

- Now that we use swi's, we can acquire the netisr lock around processing
  runs, since the wakeup can be waited for without holding the workstream
  lock.

- Garbage collect NWS_SWI_BOUND and manual binding with sched_bind(),
  use intr_event_bind() now that this is supported for software
  interrupt threads.

END