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IB/ipath: User mode send DMA header file 

A new header file which allows the IBA7220 send DMA engine to be used
from userland.  The definitions here are not used yet, that will happen
in a follow-on patch...

Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Arthur Jones 2008-04-16 21:09:31 -07:00 committed by Roland Dreier
parent f7a60d71af
commit 909c0faa8f
1 changed files with 54 additions and 0 deletions
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54
drivers/infiniband/hw/ipath/ipath_user_sdma.h Normal file
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/*
* Copyright (c) 2007, 2008 QLogic Corporation. 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.
*/
#include <linux/device.h>
struct ipath_user_sdma_queue;
struct ipath_user_sdma_queue *
ipath_user_sdma_queue_create(struct device *dev, int unit, int port, int sport);
void ipath_user_sdma_queue_destroy(struct ipath_user_sdma_queue *pq);
int ipath_user_sdma_writev(struct ipath_devdata *dd,
struct ipath_user_sdma_queue *pq,
const struct iovec *iov,
unsigned long dim);
int ipath_user_sdma_make_progress(struct ipath_devdata *dd,
struct ipath_user_sdma_queue *pq);
int ipath_user_sdma_pkt_sent(const struct ipath_user_sdma_queue *pq,
u32 counter);
void ipath_user_sdma_queue_drain(struct ipath_devdata *dd,
struct ipath_user_sdma_queue *pq);
u32 ipath_user_sdma_complete_counter(const struct ipath_user_sdma_queue *pq);
u32 ipath_user_sdma_inflight_counter(struct ipath_user_sdma_queue *pq);