K 10
svn:author
V 2
np
K 8
svn:date
V 27
2012-04-17T20:43:46.982182Z
K 7
svn:log
V 1099
Changes to the TCP offload code in the kernel.

input:
- Deliver stray packets for an offloaded connection to the TOE driver
  handling the connection.
- Inform the TOE driver when received data is consumed from the socket
  buffer.  This allows for forward progress in the rx path.

output:
- Have one central catch-all in tcp_output instead of various
  tcp_output_foo routines.  This ensures that the kernel never outputs
  anything for an offloaded connection and always kicks the TOE driver's
  tx routine instead.

timers:
- Do not arm any TCP timer for an offloaded connection.

syncache:
- Update the TOE driver when the entry it sought to add to the syncache
  is added or removed.  The kernel can call on a TOE driver to respond
  to a SYN anytime for an entry in the syncache so the TOE driver is
  expected to maintain state for entries that were added but have not
  been deleted yet.
- Do not skip any syncache checks simply because the entry is being
  added by a hardware TOE.

ctloutput
- Inform the TOE driver when setsockopt(2) changes any tcp(4) option of
  an offloaded socket.

END