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a3667aae NKI |
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__ */ |