linux-sg2042/include/rdma
Sean Hefty de98b693e9 IB/cm: Modify interface to send MRAs in response to duplicate messages
The IB CM provides a message received acknowledged (MRA) message that
can be sent to indicate that a REQ or REP message has been received, but
will require more time to process than the timeout specified by those
messages.  In many cases, the application may not know how long it will
take to respond to a CM message, but the majority of the time, it will
usually respond before a retry has been sent.  Rather than sending an
MRA in response to all messages just to handle the case where a longer
timeout is needed, it is more efficient to queue the MRA for sending in
case a duplicate message is received.

This avoids sending an MRA when it is not needed, but limits the number
of times that a REQ or REP will be resent.  It also provides for a
simpler implementation than generating the MRA based on a timer event.
(That is, trying to send the MRA after receiving the first REQ or REP if
a response has not been generated, so that it is received at the remote
side before a duplicate REQ or REP has been received)

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-10-09 19:59:17 -07:00
..
Kbuild [HEADERS] One line per header in Kbuild files to reduce conflicts 2006-09-19 12:43:58 +01:00
ib_addr.h IB/sa: Track multicast join/leave requests 2007-02-16 14:20:02 -08:00
ib_cache.h IB: Add caching of ports' LMC 2006-06-17 20:37:34 -07:00
ib_cm.h IB/cm: Modify interface to send MRAs in response to duplicate messages 2007-10-09 19:59:17 -07:00
ib_fmr_pool.h [PATCH] fmr pool: remove unnecessary pointer dereference 2006-07-14 21:53:51 -07:00
ib_mad.h IB: Include <linux/list.h> from <rdma/ib_mad.h> 2007-08-03 10:45:17 -07:00
ib_marshall.h RDMA/cma: Export rdma cm interface to userspace 2006-12-12 11:50:22 -08:00
ib_pack.h [PATCH] IB: move include files to include/rdma 2005-08-26 20:37:38 -07:00
ib_sa.h IB/sa: Add new QoS fields to path record 2007-10-09 19:59:12 -07:00
ib_smi.h IB: Move struct port_info from ipath to <rdma/ib_smi.h> 2006-06-17 20:37:36 -07:00
ib_umem.h IB/umem: Add hugetlb flag to struct ib_umem 2007-10-09 19:59:13 -07:00
ib_user_cm.h IB/cm: Fix automatic path migration support 2006-11-29 15:33:10 -08:00
ib_user_mad.h IB/umad: Fix bit ordering and 32-on-64 problems on big endian systems 2007-10-09 19:59:15 -07:00
ib_user_sa.h IB: common handling for marshalling parameters to/from userspace 2006-06-17 20:37:27 -07:00
ib_user_verbs.h IB/uverbs: Return sq_draining value in query_qp response 2006-10-30 21:19:35 -08:00
ib_verbs.h IB: Move the macro IB_UMEM_MAX_PAGE_CHUNK() to umem.c 2007-08-03 10:45:18 -07:00
iw_cm.h RDMA: iWARP Connection Manager. 2006-09-22 15:22:46 -07:00
rdma_cm.h RDMA/cma: Add ability to specify type of service 2007-10-09 19:59:12 -07:00
rdma_cm_ib.h RDMA/cma: Add multicast communication support 2007-02-16 14:29:07 -08:00
rdma_user_cm.h RDMA/ucma: Allow user space to set service type 2007-10-09 19:59:12 -07:00