* Single event queue per network interface.

*   Single event queue per network interface.

*   Pre-allocated server requests, individually posted for receives
    Servers now configured by XXX_NREQ (# requests) and XXX_MAXREQSIZE
    (size of each replies buffer).

*   Asynchronous server-side reply completion/notification.  struct
    ptlrpc_reply_state objects splits off state reply so request can be
    reposted immediately.

*   exp_outstanding_reply now a list of replies

*   bulk descriptors sized so bd_iov can contain all the fragments.
    ptlrpc_prep_bulk_page() is now returns void (i.e. no errors; may fail
    an LASSERT if the bulk desc was sized incorrectly).

*   NOT tested saved locks yet; bringing up to date with b_devel first...