Merge tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
[deliverable/linux.git] / drivers / net / ethernet / broadcom / cnic.h
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1/* cnic.h: Broadcom CNIC core network driver.
2 *
c3661283 3 * Copyright (c) 2006-2014 Broadcom Corporation
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4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
8 *
9 */
10
11
12#ifndef CNIC_H
13#define CNIC_H
14
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15#define HC_INDEX_ISCSI_EQ_CONS 6
16
17#define HC_INDEX_FCOE_EQ_CONS 3
18
19#define HC_SP_INDEX_ETH_ISCSI_CQ_CONS 5
20#define HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS 1
21
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22#define KWQ_PAGE_CNT 4
23#define KCQ_PAGE_CNT 16
24
25#define KWQ_CID 24
26#define KCQ_CID 25
27
28/*
29 * krnlq_context definition
30 */
31#define L5_KRNLQ_FLAGS 0x00000000
32#define L5_KRNLQ_SIZE 0x00000000
33#define L5_KRNLQ_TYPE 0x00000000
34#define KRNLQ_FLAGS_PG_SZ (0xf<<0)
35#define KRNLQ_FLAGS_PG_SZ_256 (0<<0)
36#define KRNLQ_FLAGS_PG_SZ_512 (1<<0)
37#define KRNLQ_FLAGS_PG_SZ_1K (2<<0)
38#define KRNLQ_FLAGS_PG_SZ_2K (3<<0)
39#define KRNLQ_FLAGS_PG_SZ_4K (4<<0)
40#define KRNLQ_FLAGS_PG_SZ_8K (5<<0)
41#define KRNLQ_FLAGS_PG_SZ_16K (6<<0)
42#define KRNLQ_FLAGS_PG_SZ_32K (7<<0)
43#define KRNLQ_FLAGS_PG_SZ_64K (8<<0)
44#define KRNLQ_FLAGS_PG_SZ_128K (9<<0)
45#define KRNLQ_FLAGS_PG_SZ_256K (10<<0)
46#define KRNLQ_FLAGS_PG_SZ_512K (11<<0)
47#define KRNLQ_FLAGS_PG_SZ_1M (12<<0)
48#define KRNLQ_FLAGS_PG_SZ_2M (13<<0)
49#define KRNLQ_FLAGS_QE_SELF_SEQ (1<<15)
50#define KRNLQ_SIZE_TYPE_SIZE ((((0x28 + 0x1f) & ~0x1f) / 0x20) << 16)
51#define KRNLQ_TYPE_TYPE (0xf<<28)
52#define KRNLQ_TYPE_TYPE_EMPTY (0<<28)
53#define KRNLQ_TYPE_TYPE_KRNLQ (6<<28)
54
55#define L5_KRNLQ_HOST_QIDX 0x00000004
56#define L5_KRNLQ_HOST_FW_QIDX 0x00000008
57#define L5_KRNLQ_NX_QE_SELF_SEQ 0x0000000c
58#define L5_KRNLQ_QE_SELF_SEQ_MAX 0x0000000c
59#define L5_KRNLQ_NX_QE_HADDR_HI 0x00000010
60#define L5_KRNLQ_NX_QE_HADDR_LO 0x00000014
61#define L5_KRNLQ_PGTBL_PGIDX 0x00000018
62#define L5_KRNLQ_NX_PG_QIDX 0x00000018
63#define L5_KRNLQ_PGTBL_NPAGES 0x0000001c
64#define L5_KRNLQ_QIDX_INCR 0x0000001c
65#define L5_KRNLQ_PGTBL_HADDR_HI 0x00000020
66#define L5_KRNLQ_PGTBL_HADDR_LO 0x00000024
67
68#define BNX2_PG_CTX_MAP 0x1a0034
69#define BNX2_ISCSI_CTX_MAP 0x1a0074
70
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71#define MAX_COMPLETED_KCQE 64
72
73#define MAX_CNIC_L5_CONTEXT 256
74
75#define MAX_CM_SK_TBL_SZ MAX_CNIC_L5_CONTEXT
76
77#define MAX_ISCSI_TBL_SZ 256
78
79#define CNIC_LOCAL_PORT_MIN 60000
9b093360 80#define CNIC_LOCAL_PORT_MAX 61024
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81#define CNIC_LOCAL_PORT_RANGE (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)
82
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83#define KWQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kwqe))
84#define KCQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kcqe))
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85#define MAX_KWQE_CNT (KWQE_CNT - 1)
86#define MAX_KCQE_CNT (KCQE_CNT - 1)
87
88#define MAX_KWQ_IDX ((KWQ_PAGE_CNT * KWQE_CNT) - 1)
89#define MAX_KCQ_IDX ((KCQ_PAGE_CNT * KCQE_CNT) - 1)
90
2bc4078e 91#define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BNX2_PAGE_BITS - 5))
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92#define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)
93
2bc4078e 94#define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BNX2_PAGE_BITS - 5))
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95#define KCQ_IDX(x) ((x) & MAX_KCQE_CNT)
96
97#define BNX2X_NEXT_KCQE(x) (((x) & (MAX_KCQE_CNT - 1)) == \
98 (MAX_KCQE_CNT - 1)) ? \
99 (x) + 2 : (x) + 1
100
101#define BNX2X_KWQ_DATA_PG(cp, x) ((x) / (cp)->kwq_16_data_pp)
102#define BNX2X_KWQ_DATA_IDX(cp, x) ((x) % (cp)->kwq_16_data_pp)
103#define BNX2X_KWQ_DATA(cp, x) \
104 &(cp)->kwq_16_data[BNX2X_KWQ_DATA_PG(cp, x)][BNX2X_KWQ_DATA_IDX(cp, x)]
105
a9736c08 106#define DEF_IPID_START 0x8000
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107
108#define DEF_KA_TIMEOUT 10000
109#define DEF_KA_INTERVAL 300000
110#define DEF_KA_MAX_PROBE_COUNT 3
111#define DEF_TOS 0
112#define DEF_TTL 0xfe
113#define DEF_SND_SEQ_SCALE 0
114#define DEF_RCV_BUF 0xffff
115#define DEF_SND_BUF 0xffff
116#define DEF_SEED 0
117#define DEF_MAX_RT_TIME 500
118#define DEF_MAX_DA_COUNT 2
119#define DEF_SWS_TIMER 1000
120#define DEF_MAX_CWND 0xffff
121
122struct cnic_ctx {
123 u32 cid;
124 void *ctx;
125 dma_addr_t mapping;
126};
127
128#define BNX2_MAX_CID 0x2000
129
130struct cnic_dma {
131 int num_pages;
132 void **pg_arr;
133 dma_addr_t *pg_map_arr;
134 int pgtbl_size;
135 u32 *pgtbl;
136 dma_addr_t pgtbl_map;
137};
138
139struct cnic_id_tbl {
140 spinlock_t lock;
141 u32 start;
142 u32 max;
143 u32 next;
144 unsigned long *table;
145};
146
147#define CNIC_KWQ16_DATA_SIZE 128
148
149struct kwqe_16_data {
150 u8 data[CNIC_KWQ16_DATA_SIZE];
151};
152
153struct cnic_iscsi {
154 struct cnic_dma task_array_info;
155 struct cnic_dma r2tq_info;
156 struct cnic_dma hq_info;
157};
158
159struct cnic_context {
160 u32 cid;
161 struct kwqe_16_data *kwqe_data;
162 dma_addr_t kwqe_data_mapping;
163 wait_queue_head_t waitq;
164 int wait_cond;
165 unsigned long timestamp;
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166 unsigned long ctx_flags;
167#define CTX_FL_OFFLD_START 0
fdf24086 168#define CTX_FL_DELETE_WAIT 1
619c5cb6 169#define CTX_FL_CID_ERROR 2
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170 u8 ulp_proto_id;
171 union {
172 struct cnic_iscsi *iscsi;
173 } proto;
174};
175
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176struct kcq_info {
177 struct cnic_dma dma;
178 struct kcqe **kcq;
179
180 u16 *hw_prod_idx_ptr;
181 u16 sw_prod_idx;
182 u16 *status_idx_ptr;
183 u32 io_addr;
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184
185 u16 (*next_idx)(u16);
186 u16 (*hw_idx)(u16);
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187};
188
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189#define UIO_USE_TX_DOORBELL 0x017855DB
190
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191struct cnic_uio_dev {
192 struct uio_info cnic_uinfo;
193 u32 uio_dev;
194
195 int l2_ring_size;
196 void *l2_ring;
197 dma_addr_t l2_ring_map;
198
199 int l2_buf_size;
200 void *l2_buf;
201 dma_addr_t l2_buf_map;
202
203 struct cnic_dev *dev;
204 struct pci_dev *pdev;
205 struct list_head list;
206};
207
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208struct cnic_local {
209
210 spinlock_t cnic_ulp_lock;
211 void *ulp_handle[MAX_CNIC_ULP_TYPE];
212 unsigned long ulp_flags[MAX_CNIC_ULP_TYPE];
213#define ULP_F_INIT 0
214#define ULP_F_START 1
681dbd71 215#define ULP_F_CALL_PENDING 2
13707f9e 216 struct cnic_ulp_ops __rcu *ulp_ops[MAX_CNIC_ULP_TYPE];
a4636960 217
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218 unsigned long cnic_local_flags;
219#define CNIC_LCL_FL_KWQ_INIT 0x0
48f753d2 220#define CNIC_LCL_FL_L2_WAIT 0x1
541a7810 221#define CNIC_LCL_FL_RINGS_INITED 0x2
fab0dc89 222#define CNIC_LCL_FL_STOP_ISCSI 0x4
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223
224 struct cnic_dev *dev;
225
226 struct cnic_eth_dev *ethdev;
227
cd801536 228 struct cnic_uio_dev *udev;
a4636960 229
cd801536 230 int l2_rx_ring_size;
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231 int l2_single_buf_size;
232
233 u16 *rx_cons_ptr;
234 u16 *tx_cons_ptr;
235 u16 rx_cons;
236 u16 tx_cons;
237
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238 struct cnic_dma kwq_info;
239 struct kwqe **kwq;
240
241 struct cnic_dma kwq_16_data_info;
242
243 u16 max_kwq_idx;
244
245 u16 kwq_prod_idx;
246 u32 kwq_io_addr;
247
248 u16 *kwq_con_idx_ptr;
249 u16 kwq_con_idx;
250
e6c28894 251 struct kcq_info kcq1;
e21ba414 252 struct kcq_info kcq2;
a4636960 253
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254 union {
255 void *gen;
256 struct status_block_msix *bnx2;
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257 struct host_hc_status_block_e1x *bnx2x_e1x;
258 /* index values - which counter to update */
259 #define SM_RX_ID 0
260 #define SM_TX_ID 1
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261 } status_blk;
262
523224a3 263 struct host_sp_status_block *bnx2x_def_status_blk;
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264
265 u32 status_blk_num;
523224a3 266 u32 bnx2x_igu_sb_id;
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267 u32 int_num;
268 u32 last_status_idx;
269 struct tasklet_struct cnic_irq_task;
270
271 struct kcqe *completed_kcq[MAX_COMPLETED_KCQE];
272
273 struct cnic_sock *csk_tbl;
274 struct cnic_id_tbl csk_port_tbl;
275
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276 struct cnic_dma gbl_buf_info;
277
278 struct cnic_iscsi *iscsi_tbl;
279 struct cnic_context *ctx_tbl;
280 struct cnic_id_tbl cid_tbl;
a4636960 281 atomic_t iscsi_conn;
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282 u32 iscsi_start_cid;
283
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284 u32 fcoe_init_cid;
285 u32 fcoe_start_cid;
286 struct cnic_id_tbl fcoe_cid_tbl;
287
520efdf4 288 u32 max_cid_space;
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289
290 /* per connection parameters */
291 int num_iscsi_tasks;
292 int num_ccells;
293 int task_array_size;
294 int r2tq_size;
295 int hq_size;
296 int num_cqs;
297
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298 struct delayed_work delete_task;
299
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300 struct cnic_ctx *ctx_arr;
301 int ctx_blks;
302 int ctx_blk_size;
e2513065 303 unsigned long ctx_align;
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304 int cids_per_blk;
305
306 u32 chip_id;
307 int func;
619c5cb6 308
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309 u32 shmem_base;
310
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311 struct cnic_ops *cnic_ops;
312 int (*start_hw)(struct cnic_dev *);
313 void (*stop_hw)(struct cnic_dev *);
314 void (*setup_pgtbl)(struct cnic_dev *,
315 struct cnic_dma *);
316 int (*alloc_resc)(struct cnic_dev *);
317 void (*free_resc)(struct cnic_dev *);
318 int (*start_cm)(struct cnic_dev *);
319 void (*stop_cm)(struct cnic_dev *);
320 void (*enable_int)(struct cnic_dev *);
321 void (*disable_int_sync)(struct cnic_dev *);
322 void (*ack_int)(struct cnic_dev *);
8cc0e028 323 void (*arm_int)(struct cnic_dev *, u32 index);
a4636960 324 void (*close_conn)(struct cnic_sock *, u32 opcode);
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325};
326
327struct bnx2x_bd_chain_next {
328 u32 addr_lo;
329 u32 addr_hi;
330 u8 reserved[8];
331};
332
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333#define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T (1)
334
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335#define ISCSI_RAMROD_CMD_ID_UPDATE_CONN (ISCSI_KCQE_OPCODE_UPDATE_CONN)
336#define ISCSI_RAMROD_CMD_ID_INIT (ISCSI_KCQE_OPCODE_INIT)
337
338#define CDU_REGION_NUMBER_XCM_AG 2
339#define CDU_REGION_NUMBER_UCM_AG 4
340
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341#define CDU_VALID_DATA(_cid, _region, _type) \
342 (((_cid) << 8) | (((_region)&0xf)<<4) | (((_type)&0xf)))
343
344#define CDU_CRC8(_cid, _region, _type) \
345 (calc_crc8(CDU_VALID_DATA(_cid, _region, _type), 0xff))
346
347#define CDU_RSRVD_VALUE_TYPE_A(_cid, _region, _type) \
348 (0x80 | ((CDU_CRC8(_cid, _region, _type)) & 0x7f))
349
350#define BNX2X_CONTEXT_MEM_SIZE 1024
351#define BNX2X_FCOE_CID 16
352
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353#define BNX2X_ISCSI_START_CID 18
354#define BNX2X_ISCSI_NUM_CONNECTIONS 128
355#define BNX2X_ISCSI_TASK_CONTEXT_SIZE 128
356#define BNX2X_ISCSI_MAX_PENDING_R2TS 4
357#define BNX2X_ISCSI_R2TQE_SIZE 8
358#define BNX2X_ISCSI_HQ_BD_SIZE 64
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359#define BNX2X_ISCSI_GLB_BUF_SIZE 64
360#define BNX2X_ISCSI_PBL_NOT_CACHED 0xff
361#define BNX2X_ISCSI_PDU_HEADER_NOT_CACHED 0xff
ceb7e1c7 362
dc219a2e 363#define BNX2X_FCOE_NUM_CONNECTIONS 1024
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364
365#define BNX2X_FCOE_L5_CID_BASE MAX_ISCSI_TBL_SZ
366
104a43ed 367#define BNX2X_CHIP_IS_E2_PLUS(bp) (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))
ee87a82a 368
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369#define BNX2X_RX_DESC_CNT (BNX2_PAGE_SIZE / \
370 sizeof(struct eth_rx_bd))
e2513065 371#define BNX2X_MAX_RX_DESC_CNT (BNX2X_RX_DESC_CNT - 2)
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372#define BNX2X_RCQ_DESC_CNT (BNX2_PAGE_SIZE / \
373 sizeof(union eth_rx_cqe))
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374#define BNX2X_MAX_RCQ_DESC_CNT (BNX2X_RCQ_DESC_CNT - 1)
375
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376#define BNX2X_NEXT_RCQE(x) (((x) & BNX2X_MAX_RCQ_DESC_CNT) == \
377 (BNX2X_MAX_RCQ_DESC_CNT - 1)) ? \
378 ((x) + 2) : ((x) + 1)
379
523224a3 380#define BNX2X_DEF_SB_ID HC_SP_SB_ID
e2513065 381
523224a3 382#define BNX2X_SHMEM_MF_BLK_OFFSET 0x7e4
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383
384#define BNX2X_SHMEM_ADDR(base, field) (base + \
385 offsetof(struct shmem_region, field))
386
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387#define BNX2X_SHMEM2_ADDR(base, field) (base + \
388 offsetof(struct shmem2_region, field))
389
390#define BNX2X_SHMEM2_HAS(base, field) \
391 ((base) && \
392 (CNIC_RD(dev, BNX2X_SHMEM2_ADDR(base, size)) > \
393 offsetof(struct shmem2_region, field)))
394
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395#define BNX2X_MF_CFG_ADDR(base, field) \
396 ((base) + offsetof(struct mf_cfg, field))
397
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398#ifndef ETH_MAX_RX_CLIENTS_E2
399#define ETH_MAX_RX_CLIENTS_E2 ETH_MAX_RX_CLIENTS_E1H
400#endif
401
e2513065 402#define CNIC_FUNC(cp) ((cp)->func)
e2513065 403
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404#define BNX2X_HW_CID(bp, x) ((BP_PORT(bp) << 23) | \
405 (BP_VN(bp) << 17) | (x))
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406
407#define BNX2X_SW_CID(x) (x & 0x1ffff)
408
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409#define BNX2X_CL_QZONE_ID(bp, cli) \
410 (BNX2X_CHIP_IS_E2_PLUS(bp) ? cli : \
411 cli + (BP_PORT(bp) * ETH_MAX_RX_CLIENTS_E1H))
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412
413#ifndef MAX_STAT_COUNTER_ID
414#define MAX_STAT_COUNTER_ID \
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415 (CHIP_IS_E1H(bp) ? MAX_STAT_COUNTER_ID_E1H : \
416 ((BNX2X_CHIP_IS_E2_PLUS(bp)) ? MAX_STAT_COUNTER_ID_E2 : \
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417 MAX_STAT_COUNTER_ID_E1))
418#endif
523224a3 419
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420#define CNIC_SUPPORTS_FCOE(cp) \
421 (BNX2X_CHIP_IS_E2_PLUS(bp) && !NO_FCOE(bp))
51a8f54d 422
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423#define CNIC_RAMROD_TMO (HZ / 4)
424
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425#endif
426
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