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RDMA: iWARP Connection Manager.

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Add an iWARP Connection Manager (CM), which abstracts connection
management for iWARP devices (RNICs).  It is a logical instance of the
xx_cm where xx is the transport type (ib or iw).  The symbols exported
are used by the transport independent rdma_cm module, and are
available also for transport dependent ULPs.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Tom Tucker
2006-08-03 16:02:40 -05:00
committed by Roland Dreier
parent 3cd965646b
commit 922a8e9fb2
3 changed files with 1339 additions and 0 deletions
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drivers/infiniband/core/iwcm.c Normal file
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drivers/infiniband/core/iwcm.h Normal file
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/*
* Copyright (c) 2005 Network Appliance, Inc. All rights reserved.
* Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef IWCM_H
#define IWCM_H
enum iw_cm_state {
IW_CM_STATE_IDLE, /* unbound, inactive */
IW_CM_STATE_LISTEN, /* listen waiting for connect */
IW_CM_STATE_CONN_RECV, /* inbound waiting for user accept */
IW_CM_STATE_CONN_SENT, /* outbound waiting for peer accept */
IW_CM_STATE_ESTABLISHED, /* established */
IW_CM_STATE_CLOSING, /* disconnect */
IW_CM_STATE_DESTROYING /* object being deleted */
};
struct iwcm_id_private {
struct iw_cm_id id;
enum iw_cm_state state;
unsigned long flags;
struct ib_qp *qp;
struct completion destroy_comp;
wait_queue_head_t connect_wait;
struct list_head work_list;
spinlock_t lock;
atomic_t refcount;
struct list_head work_free_list;
};
#define IWCM_F_CALLBACK_DESTROY 1
#define IWCM_F_CONNECT_WAIT 2
#endif /* IWCM_H */