diff options
Diffstat (limited to 'drivers/scsi/csiostor/csio_defs.h')
-rw-r--r-- | drivers/scsi/csiostor/csio_defs.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/drivers/scsi/csiostor/csio_defs.h b/drivers/scsi/csiostor/csio_defs.h new file mode 100644 index 000000000000..c38017b4af98 --- /dev/null +++ b/drivers/scsi/csiostor/csio_defs.h | |||
@@ -0,0 +1,121 @@ | |||
1 | /* | ||
2 | * This file is part of the Chelsio FCoE driver for Linux. | ||
3 | * | ||
4 | * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. | ||
5 | * | ||
6 | * This software is available to you under a choice of one of two | ||
7 | * licenses. You may choose to be licensed under the terms of the GNU | ||
8 | * General Public License (GPL) Version 2, available from the file | ||
9 | * COPYING in the main directory of this source tree, or the | ||
10 | * OpenIB.org BSD license below: | ||
11 | * | ||
12 | * Redistribution and use in source and binary forms, with or | ||
13 | * without modification, are permitted provided that the following | ||
14 | * conditions are met: | ||
15 | * | ||
16 | * - Redistributions of source code must retain the above | ||
17 | * copyright notice, this list of conditions and the following | ||
18 | * disclaimer. | ||
19 | * | ||
20 | * - Redistributions in binary form must reproduce the above | ||
21 | * copyright notice, this list of conditions and the following | ||
22 | * disclaimer in the documentation and/or other materials | ||
23 | * provided with the distribution. | ||
24 | * | ||
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | ||
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | ||
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | ||
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
32 | * SOFTWARE. | ||
33 | */ | ||
34 | |||
35 | #ifndef __CSIO_DEFS_H__ | ||
36 | #define __CSIO_DEFS_H__ | ||
37 | |||
38 | #include <linux/kernel.h> | ||
39 | #include <linux/stddef.h> | ||
40 | #include <linux/timer.h> | ||
41 | #include <linux/list.h> | ||
42 | #include <linux/bug.h> | ||
43 | #include <linux/pci.h> | ||
44 | #include <linux/jiffies.h> | ||
45 | |||
46 | #define CSIO_INVALID_IDX 0xFFFFFFFF | ||
47 | #define CSIO_INC_STATS(elem, val) ((elem)->stats.val++) | ||
48 | #define CSIO_DEC_STATS(elem, val) ((elem)->stats.val--) | ||
49 | #define CSIO_VALID_WWN(__n) ((*__n >> 4) == 0x5 ? true : false) | ||
50 | #define CSIO_DID_MASK 0xFFFFFF | ||
51 | #define CSIO_WORD_TO_BYTE 4 | ||
52 | |||
53 | #ifndef readq | ||
54 | static inline u64 readq(void __iomem *addr) | ||
55 | { | ||
56 | return readl(addr) + ((u64)readl(addr + 4) << 32); | ||
57 | } | ||
58 | |||
59 | static inline void writeq(u64 val, void __iomem *addr) | ||
60 | { | ||
61 | writel(val, addr); | ||
62 | writel(val >> 32, addr + 4); | ||
63 | } | ||
64 | #endif | ||
65 | |||
66 | static inline int | ||
67 | csio_list_deleted(struct list_head *list) | ||
68 | { | ||
69 | return ((list->next == list) && (list->prev == list)); | ||
70 | } | ||
71 | |||
72 | #define csio_list_next(elem) (((struct list_head *)(elem))->next) | ||
73 | #define csio_list_prev(elem) (((struct list_head *)(elem))->prev) | ||
74 | |||
75 | /* State machine */ | ||
76 | typedef void (*csio_sm_state_t)(void *, uint32_t); | ||
77 | |||
78 | struct csio_sm { | ||
79 | struct list_head sm_list; | ||
80 | csio_sm_state_t sm_state; | ||
81 | }; | ||
82 | |||
83 | static inline void | ||
84 | csio_set_state(void *smp, void *state) | ||
85 | { | ||
86 | ((struct csio_sm *)smp)->sm_state = (csio_sm_state_t)state; | ||
87 | } | ||
88 | |||
89 | static inline void | ||
90 | csio_init_state(struct csio_sm *smp, void *state) | ||
91 | { | ||
92 | csio_set_state(smp, state); | ||
93 | } | ||
94 | |||
95 | static inline void | ||
96 | csio_post_event(void *smp, uint32_t evt) | ||
97 | { | ||
98 | ((struct csio_sm *)smp)->sm_state(smp, evt); | ||
99 | } | ||
100 | |||
101 | static inline csio_sm_state_t | ||
102 | csio_get_state(void *smp) | ||
103 | { | ||
104 | return ((struct csio_sm *)smp)->sm_state; | ||
105 | } | ||
106 | |||
107 | static inline bool | ||
108 | csio_match_state(void *smp, void *state) | ||
109 | { | ||
110 | return (csio_get_state(smp) == (csio_sm_state_t)state); | ||
111 | } | ||
112 | |||
113 | #define CSIO_ASSERT(cond) BUG_ON(!(cond)) | ||
114 | |||
115 | #ifdef __CSIO_DEBUG__ | ||
116 | #define CSIO_DB_ASSERT(__c) CSIO_ASSERT((__c)) | ||
117 | #else | ||
118 | #define CSIO_DB_ASSERT(__c) | ||
119 | #endif | ||
120 | |||
121 | #endif /* ifndef __CSIO_DEFS_H__ */ | ||