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18#ifndef BEISCSI_H
19#define BEISCSI_H
20
21#include <linux/pci.h>
22#include <linux/if_vlan.h>
23#include <linux/blk-iopoll.h>
24#define FW_VER_LEN 32
25#define MCC_Q_LEN 128
26#define MCC_CQ_LEN 256
27#define MAX_MCC_CMD 16
28
29#define BE_GEN2 2
30#define BE_GEN3 3
31#define BE_GEN4 4
32struct be_dma_mem {
33 void *va;
34 dma_addr_t dma;
35 u32 size;
36};
37
38struct be_queue_info {
39 struct be_dma_mem dma_mem;
40 u16 len;
41 u16 entry_size;
42 u16 id;
43 u16 tail, head;
44 bool created;
45 atomic_t used;
46};
47
48static inline u32 MODULO(u16 val, u16 limit)
49{
50 WARN_ON(limit & (limit - 1));
51 return val & (limit - 1);
52}
53
54static inline void index_inc(u16 *index, u16 limit)
55{
56 *index = MODULO((*index + 1), limit);
57}
58
59static inline void *queue_head_node(struct be_queue_info *q)
60{
61 return q->dma_mem.va + q->head * q->entry_size;
62}
63
64static inline void *queue_get_wrb(struct be_queue_info *q, unsigned int wrb_num)
65{
66 return q->dma_mem.va + wrb_num * q->entry_size;
67}
68
69static inline void *queue_tail_node(struct be_queue_info *q)
70{
71 return q->dma_mem.va + q->tail * q->entry_size;
72}
73
74static inline void queue_head_inc(struct be_queue_info *q)
75{
76 index_inc(&q->head, q->len);
77}
78
79static inline void queue_tail_inc(struct be_queue_info *q)
80{
81 index_inc(&q->tail, q->len);
82}
83
84
85
86struct be_eq_obj {
87 bool todo_mcc_cq;
88 bool todo_cq;
89 struct be_queue_info q;
90 struct beiscsi_hba *phba;
91 struct be_queue_info *cq;
92 struct work_struct work_cqs;
93 struct blk_iopoll iopoll;
94};
95
96struct be_mcc_obj {
97 struct be_queue_info q;
98 struct be_queue_info cq;
99};
100
101struct be_ctrl_info {
102 u8 __iomem *csr;
103 u8 __iomem *db;
104 u8 __iomem *pcicfg;
105 struct pci_dev *pdev;
106
107
108 spinlock_t mbox_lock;
109 struct be_dma_mem mbox_mem;
110
111
112 struct be_dma_mem mbox_mem_alloced;
113
114
115 struct be_mcc_obj mcc_obj;
116 spinlock_t mcc_lock;
117 spinlock_t mcc_cq_lock;
118
119 wait_queue_head_t mcc_wait[MAX_MCC_CMD + 1];
120 unsigned int mcc_tag[MAX_MCC_CMD];
121 unsigned int mcc_numtag[MAX_MCC_CMD + 1];
122 unsigned short mcc_alloc_index;
123 unsigned short mcc_free_index;
124 unsigned int mcc_tag_available;
125};
126
127#include "be_cmds.h"
128
129#define PAGE_SHIFT_4K 12
130#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
131#define mcc_timeout 120000
132
133
134#define PAGES_4K_SPANNED(_address, size) \
135 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
136 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
137
138
139#define AMAP_BIT_OFFSET(_struct, field) \
140 (((size_t)&(((_struct *)0)->field))%32)
141
142
143static inline u32 amap_mask(u32 bitsize)
144{
145 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
146}
147
148static inline void amap_set(void *ptr, u32 dw_offset, u32 mask,
149 u32 offset, u32 value)
150{
151 u32 *dw = (u32 *) ptr + dw_offset;
152 *dw &= ~(mask << offset);
153 *dw |= (mask & value) << offset;
154}
155
156#define AMAP_SET_BITS(_struct, field, ptr, val) \
157 amap_set(ptr, \
158 offsetof(_struct, field)/32, \
159 amap_mask(sizeof(((_struct *)0)->field)), \
160 AMAP_BIT_OFFSET(_struct, field), \
161 val)
162
163static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
164{
165 u32 *dw = ptr;
166 return mask & (*(dw + dw_offset) >> offset);
167}
168
169#define AMAP_GET_BITS(_struct, field, ptr) \
170 amap_get(ptr, \
171 offsetof(_struct, field)/32, \
172 amap_mask(sizeof(((_struct *)0)->field)), \
173 AMAP_BIT_OFFSET(_struct, field))
174
175#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
176#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
177static inline void swap_dws(void *wrb, int len)
178{
179#ifdef __BIG_ENDIAN
180 u32 *dw = wrb;
181 WARN_ON(len % 4);
182 do {
183 *dw = cpu_to_le32(*dw);
184 dw++;
185 len -= 4;
186 } while (len);
187#endif
188}
189#endif
190