1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/*
* Copyright(c) 2017 Intel Corporation.
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* BSD LICENSE
*
* 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.
* - Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "exp_rcv.h"
#include "trace.h"
/**
* exp_tid_group_init - initialize exp_tid_set
* @set - the set
*/
static void hfi1_exp_tid_set_init(struct exp_tid_set *set)
{
INIT_LIST_HEAD(&set->list);
set->count = 0;
}
/**
* hfi1_exp_tid_group_init - initialize rcd expected receive
* @rcd - the rcd
*/
void hfi1_exp_tid_group_init(struct hfi1_ctxtdata *rcd)
{
hfi1_exp_tid_set_init(&rcd->tid_group_list);
hfi1_exp_tid_set_init(&rcd->tid_used_list);
hfi1_exp_tid_set_init(&rcd->tid_full_list);
}
/**
* alloc_ctxt_rcv_groups - initialize expected receive groups
* @rcd - the context to add the groupings to
*/
int hfi1_alloc_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd)
{
struct hfi1_devdata *dd = rcd->dd;
u32 tidbase;
struct tid_group *grp;
int i;
u32 ngroups;
ngroups = rcd->expected_count / dd->rcv_entries.group_size;
rcd->groups =
kcalloc_node(ngroups, sizeof(*rcd->groups),
GFP_KERNEL, rcd->numa_id);
if (!rcd->groups)
return -ENOMEM;
tidbase = rcd->expected_base;
for (i = 0; i < ngroups; i++) {
grp = &rcd->groups[i];
grp->size = dd->rcv_entries.group_size;
grp->base = tidbase;
tid_group_add_tail(grp, &rcd->tid_group_list);
tidbase += dd->rcv_entries.group_size;
}
return 0;
}
/**
* free_ctxt_rcv_groups - free expected receive groups
* @rcd - the context to free
*
* The routine dismantles the expect receive linked
* list and clears any tids associated with the receive
* context.
*
* This should only be called for kernel contexts and the
* a base user context.
*/
void hfi1_free_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd)
{
kfree(rcd->groups);
rcd->groups = NULL;
hfi1_exp_tid_group_init(rcd);
hfi1_clear_tids(rcd);
}
|
