LXR linux/drivers/infiniband/hw/ipath/ipath_user

   1/*
   2 * Copyright (c) 2007, 2008 QLogic Corporation. All rights reserved.
   3 *
   4 * This software is available to you under a choice of one of two
   5 * licenses.  You may choose to be licensed under the terms of the GNU
   6 * General Public License (GPL) Version 2, available from the file
   7 * COPYING in the main directory of this source tree, or the
   8 * OpenIB.org BSD license below:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  18 *      - Redistributions in binary form must reproduce the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer in the documentation and/or other materials
  21 *        provided with the distribution.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30 * SOFTWARE.
  31 */
  32#include <linux/device.h>
  33
  34struct ipath_user_sdma_queue;
  35
  36struct ipath_user_sdma_queue *
  37ipath_user_sdma_queue_create(struct device *dev, int unit, int port, int sport);
  38void ipath_user_sdma_queue_destroy(struct ipath_user_sdma_queue *pq);
  39
  40int ipath_user_sdma_writev(struct ipath_devdata *dd,
  41                           struct ipath_user_sdma_queue *pq,
  42                           const struct iovec *iov,
  43                           unsigned long dim);
  44
  45int ipath_user_sdma_make_progress(struct ipath_devdata *dd,
  46                                  struct ipath_user_sdma_queue *pq);
  47
  48void ipath_user_sdma_queue_drain(struct ipath_devdata *dd,
  49                                 struct ipath_user_sdma_queue *pq);
  50
  51u32 ipath_user_sdma_complete_counter(const struct ipath_user_sdma_queue *pq);
  52u32 ipath_user_sdma_inflight_counter(struct ipath_user_sdma_queue *pq);
  53