1 #ifndef _HFI1_USER_SDMA_H
2 #define _HFI1_USER_SDMA_H
4 * Copyright(c) 2015 - 2017 Intel Corporation.
6 * This file is provided under a dual BSD/GPLv2 license. When using or
7 * redistributing this file, you may do so under either license.
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
26 * - Redistributions of source code must retain the above copyright
27 * notice, this list of conditions and the following disclaimer.
28 * - Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in
30 * the documentation and/or other materials provided with the
32 * - Neither the name of Intel Corporation nor the names of its
33 * contributors may be used to endorse or promote products derived
34 * from this software without specific prior written permission.
36 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
37 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
38 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
39 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
40 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
43 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
44 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
45 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
46 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
49 #include <linux/device.h>
50 #include <linux/wait.h>
54 #include "user_exp_rcv.h"
56 extern uint extended_psn;
58 struct hfi1_user_sdma_pkt_q {
59 struct list_head list;
65 struct hfi1_devdata *dd;
66 struct kmem_cache *txreq_cache;
67 struct user_sdma_request *reqs;
68 unsigned long *req_in_use;
71 wait_queue_head_t wait;
72 unsigned long unpinned;
73 struct mmu_rb_handler *handler;
78 struct hfi1_user_sdma_comp_q {
80 struct hfi1_sdma_comp_entry *comps;
83 int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *uctxt,
84 struct hfi1_filedata *fd);
85 int hfi1_user_sdma_free_queues(struct hfi1_filedata *fd);
86 int hfi1_user_sdma_process_request(struct hfi1_filedata *fd,
87 struct iovec *iovec, unsigned long dim,
88 unsigned long *count);
90 #endif /* _HFI1_USER_SDMA_H */