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4d22de3e | 1 | /* |
a02d44a0 | 2 | * Copyright (c) 2006-2008 Chelsio, Inc. All rights reserved. |
4d22de3e DLR |
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 | #ifndef _CHELSIO_DEFS_H | |
33 | #define _CHELSIO_DEFS_H | |
34 | ||
35 | #include <linux/skbuff.h> | |
36 | #include <net/tcp.h> | |
37 | ||
38 | #include "t3cdev.h" | |
39 | ||
40 | #include "cxgb3_offload.h" | |
41 | ||
42 | #define VALIDATE_TID 1 | |
43 | ||
44 | void *cxgb_alloc_mem(unsigned long size); | |
45 | void cxgb_free_mem(void *addr); | |
4d22de3e DLR |
46 | |
47 | /* | |
48 | * Map an ATID or STID to their entries in the corresponding TID tables. | |
49 | */ | |
50 | static inline union active_open_entry *atid2entry(const struct tid_info *t, | |
51 | unsigned int atid) | |
52 | { | |
53 | return &t->atid_tab[atid - t->atid_base]; | |
54 | } | |
55 | ||
56 | static inline union listen_entry *stid2entry(const struct tid_info *t, | |
57 | unsigned int stid) | |
58 | { | |
59 | return &t->stid_tab[stid - t->stid_base]; | |
60 | } | |
61 | ||
62 | /* | |
63 | * Find the connection corresponding to a TID. | |
64 | */ | |
65 | static inline struct t3c_tid_entry *lookup_tid(const struct tid_info *t, | |
66 | unsigned int tid) | |
67 | { | |
606fcd0b DLR |
68 | struct t3c_tid_entry *t3c_tid = tid < t->ntids ? |
69 | &(t->tid_tab[tid]) : NULL; | |
70 | ||
71 | return (t3c_tid && t3c_tid->client) ? t3c_tid : NULL; | |
4d22de3e DLR |
72 | } |
73 | ||
74 | /* | |
75 | * Find the connection corresponding to a server TID. | |
76 | */ | |
77 | static inline struct t3c_tid_entry *lookup_stid(const struct tid_info *t, | |
78 | unsigned int tid) | |
79 | { | |
c9a6ce50 DLR |
80 | union listen_entry *e; |
81 | ||
4d22de3e DLR |
82 | if (tid < t->stid_base || tid >= t->stid_base + t->nstids) |
83 | return NULL; | |
c9a6ce50 DLR |
84 | |
85 | e = stid2entry(t, tid); | |
86 | if ((void *)e->next >= (void *)t->tid_tab && | |
87 | (void *)e->next < (void *)&t->atid_tab[t->natids]) | |
88 | return NULL; | |
89 | ||
90 | return &e->t3c_tid; | |
4d22de3e DLR |
91 | } |
92 | ||
93 | /* | |
94 | * Find the connection corresponding to an active-open TID. | |
95 | */ | |
96 | static inline struct t3c_tid_entry *lookup_atid(const struct tid_info *t, | |
97 | unsigned int tid) | |
98 | { | |
c9a6ce50 DLR |
99 | union active_open_entry *e; |
100 | ||
4d22de3e DLR |
101 | if (tid < t->atid_base || tid >= t->atid_base + t->natids) |
102 | return NULL; | |
c9a6ce50 DLR |
103 | |
104 | e = atid2entry(t, tid); | |
105 | if ((void *)e->next >= (void *)t->tid_tab && | |
106 | (void *)e->next < (void *)&t->atid_tab[t->natids]) | |
107 | return NULL; | |
108 | ||
109 | return &e->t3c_tid; | |
4d22de3e DLR |
110 | } |
111 | ||
4d22de3e DLR |
112 | int attach_t3cdev(struct t3cdev *dev); |
113 | void detach_t3cdev(struct t3cdev *dev); | |
114 | #endif |