3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2015 Intel Corporation.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
21 * Copyright(c) 2015 Intel Corporation.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
27 * - Redistributions of source code must retain the above copyright
28 * notice, this list of conditions and the following disclaimer.
29 * - Redistributions in binary form must reproduce the above copyright
30 * notice, this list of conditions and the following disclaimer in
31 * the documentation and/or other materials provided with the
33 * - Neither the name of Intel Corporation nor the names of its
34 * contributors may be used to endorse or promote products derived
35 * from this software without specific prior written permission.
37 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
38 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
39 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
40 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
41 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
50 #include <linux/device.h>
51 #include <linux/wait.h>
56 #define EXP_TID_TIDLEN_MASK 0x7FFULL
57 #define EXP_TID_TIDLEN_SHIFT 0
58 #define EXP_TID_TIDCTRL_MASK 0x3ULL
59 #define EXP_TID_TIDCTRL_SHIFT 20
60 #define EXP_TID_TIDIDX_MASK 0x7FFULL
61 #define EXP_TID_TIDIDX_SHIFT 22
62 #define EXP_TID_GET(tid, field) \
63 (((tid) >> EXP_TID_TID##field##_SHIFT) & EXP_TID_TID##field##_MASK)
65 extern uint extended_psn;
67 struct hfi1_user_sdma_pkt_q {
68 struct list_head list;
74 struct hfi1_devdata *dd;
75 struct kmem_cache *txreq_cache;
76 struct user_sdma_request *reqs;
81 struct hfi1_user_sdma_comp_q {
83 struct hfi1_sdma_comp_entry *comps;
86 int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *, struct file *);
87 int hfi1_user_sdma_free_queues(struct hfi1_filedata *);
88 int hfi1_user_sdma_process_request(struct file *, struct iovec *, unsigned long,