b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * CDDL HEADER START
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b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * Common Development and Distribution License (the "License").
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * You may not use this file except in compliance with the License.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * See the License for the specific language governing permissions
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * and limitations under the License.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * When distributing Covered Code, include this CDDL HEADER in each
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * If applicable, add the following below this CDDL HEADER, with the
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b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * CDDL HEADER END
c1f8b08e52d9b30bd55daeac694e3a7f50d3cd21agiri * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * Use is subject to license terms.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * Copyright (c) 2005 SilverStorm Technologies, Inc. All rights reserved.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * This software is available to you under a choice of one of two
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * licenses. You may choose to be licensed under the terms of the GNU
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * General Public License (GPL) Version 2, available from the file
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * COPYING in the main directory of this source tree, or the
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * OpenIB.org BSD license below:
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b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * without modification, are permitted provided that the following
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b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * copyright notice, this list of conditions and the following
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * disclaimer.
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b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * SOFTWARE.
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b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri#pragma ident "%Z%%M% %I% %E% SMI"
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiriextern "C" {
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri/* Receive buffer states */
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * RDS Buffer
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * nextp - Ptr to the next buffer
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * ep - Endpoint that is using this buffer
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * ds - Data segment for SGL
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * state - rds_sendbuf_state for send buffers and rds_recvbuf_state for
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * receive buffers.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * frtn - Message freeing routine, for use by esballoc(9F), only used
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * by receive buffers
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * RDS Buffer pool
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * lock - Synchronize access
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * nbuffers - SQ depth for send buffer pool and RQ depth for receive buffer
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * nbusy - Number of buffers in the SQ or RQ
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * nfree - Number of buffers in the pool(between headp and tailp).
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * headp - First available buffer
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * tailp - Last available buffer
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * memp - pointer to the memory allocated for the buffer pool,
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * valid only for send pools.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * memsize - size of the memory allocated (valid for send pools only).
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * cv - condition variable to wait for buffers
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * cv_count - Number of buffers that are being waited on.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * sqpoll_pending - Flag to indicate that sendCQ handler is running.
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri * cv, cv_count and sqpoll_pending are only used when 'rds_no_interrupts'
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri/* Global pools of buffers */
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri/* defined in rds_buf.c */
8257fab973a69800a3a3309e8af21fc1876d2df9agiriint rds_init_send_pool(struct rds_ep_s *ep, ib_guid_t hca_guid);
c1f8b08e52d9b30bd55daeac694e3a7f50d3cd21agiriint rds_reinit_send_pool(struct rds_ep_s *ep, ib_guid_t hca_guid);
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagirivoid rds_free_buf(rds_bufpool_t *pool, rds_buf_t *bp, uint_t nbuf);
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagirirds_buf_t *rds_get_buf(rds_bufpool_t *pool, uint_t nbuf, uint_t *nret);
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagirirds_buf_t *rds_get_send_buf(struct rds_ep_s *ep, uint_t nbufs);
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagirivoid rds_free_send_buf(struct rds_ep_s *ep, rds_buf_t *headp,
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiriboolean_t rds_is_sendq_empty(struct rds_ep_s *ep, uint_t);
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiriboolean_t rds_is_recvq_empty(struct rds_ep_s *ep, boolean_t);
b86efd96f8acd85ddaa930a2f0c1d664237e4aafagiri#endif /* _RDSIB_BUF_H */