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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_aic_obj {
87 bool enable;
88 u32 min_eqd;
89 u32 max_eqd;
90 u32 prev_eqd;
91 u32 et_eqd;
92 ulong jiffs;
93 u64 eq_prev;
94};
95
96struct be_eq_obj {
97 bool todo_mcc_cq;
98 bool todo_cq;
99 u32 cq_count;
100 struct be_queue_info q;
101 struct beiscsi_hba *phba;
102 struct be_queue_info *cq;
103 struct work_struct work_cqs;
104 struct blk_iopoll iopoll;
105};
106
107struct be_mcc_obj {
108 struct be_queue_info q;
109 struct be_queue_info cq;
110};
111
112struct beiscsi_mcc_tag_state {
113#define MCC_TAG_STATE_COMPLETED 0x00
114#define MCC_TAG_STATE_RUNNING 0x01
115#define MCC_TAG_STATE_TIMEOUT 0x02
116 uint8_t tag_state;
117 struct be_dma_mem tag_mem_state;
118};
119
120struct be_ctrl_info {
121 u8 __iomem *csr;
122 u8 __iomem *db;
123 u8 __iomem *pcicfg;
124 struct pci_dev *pdev;
125
126
127 spinlock_t mbox_lock;
128 struct be_dma_mem mbox_mem;
129
130
131 struct be_dma_mem mbox_mem_alloced;
132
133
134 struct be_mcc_obj mcc_obj;
135 spinlock_t mcc_lock;
136 spinlock_t mcc_cq_lock;
137
138 wait_queue_head_t mcc_wait[MAX_MCC_CMD + 1];
139 unsigned int mcc_tag[MAX_MCC_CMD];
140 unsigned int mcc_numtag[MAX_MCC_CMD + 1];
141 unsigned short mcc_alloc_index;
142 unsigned short mcc_free_index;
143 unsigned int mcc_tag_available;
144
145 struct beiscsi_mcc_tag_state ptag_state[MAX_MCC_CMD + 1];
146};
147
148#include "be_cmds.h"
149
150#define PAGE_SHIFT_4K 12
151#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
152#define mcc_timeout 120000
153#define BEISCSI_LOGOUT_SYNC_DELAY 250
154
155
156#define PAGES_4K_SPANNED(_address, size) \
157 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
158 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
159
160
161#define AMAP_BIT_OFFSET(_struct, field) \
162 (((size_t)&(((_struct *)0)->field))%32)
163
164
165static inline u32 amap_mask(u32 bitsize)
166{
167 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
168}
169
170static inline void amap_set(void *ptr, u32 dw_offset, u32 mask,
171 u32 offset, u32 value)
172{
173 u32 *dw = (u32 *) ptr + dw_offset;
174 *dw &= ~(mask << offset);
175 *dw |= (mask & value) << offset;
176}
177
178#define AMAP_SET_BITS(_struct, field, ptr, val) \
179 amap_set(ptr, \
180 offsetof(_struct, field)/32, \
181 amap_mask(sizeof(((_struct *)0)->field)), \
182 AMAP_BIT_OFFSET(_struct, field), \
183 val)
184
185static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
186{
187 u32 *dw = ptr;
188 return mask & (*(dw + dw_offset) >> offset);
189}
190
191#define AMAP_GET_BITS(_struct, field, ptr) \
192 amap_get(ptr, \
193 offsetof(_struct, field)/32, \
194 amap_mask(sizeof(((_struct *)0)->field)), \
195 AMAP_BIT_OFFSET(_struct, field))
196
197#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
198#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
199static inline void swap_dws(void *wrb, int len)
200{
201#ifdef __BIG_ENDIAN
202 u32 *dw = wrb;
203 WARN_ON(len % 4);
204 do {
205 *dw = cpu_to_le32(*dw);
206 dw++;
207 len -= 4;
208 } while (len);
209#endif
210}
211#endif
212
