2 * Copyright(c) 2015, 2016 Intel Corporation.
4 * This file is provided under a dual BSD/GPLv2 license. When using or
5 * redistributing this file, you may do so under either license.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of version 2 of the GNU General Public License as
11 * published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
24 * - Redistributions of source code must retain the above copyright
25 * notice, this list of conditions and the following disclaimer.
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44 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
47 #include <linux/device.h>
48 #include <linux/wait.h>
52 #include "user_exp_rcv.h"
54 extern uint extended_psn;
56 enum pkt_q_sdma_state {
61 struct hfi1_user_sdma_pkt_q {
62 struct list_head list;
68 struct hfi1_devdata *dd;
69 struct kmem_cache *txreq_cache;
70 struct user_sdma_request *reqs;
71 unsigned long *req_in_use;
73 enum pkt_q_sdma_state state;
74 wait_queue_head_t wait;
75 unsigned long unpinned;
76 struct mmu_rb_handler *handler;
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,