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[~andy/linux] / drivers / net / ethernet / broadcom / cnic.h
1 /* cnic.h: Broadcom CNIC core network driver.
2  *
3  * Copyright (c) 2006-2013 Broadcom Corporation
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
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
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
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
80 #define CNIC_LOCAL_PORT_MAX     61024
81 #define CNIC_LOCAL_PORT_RANGE   (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)
82
83 #define KWQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kwqe))
84 #define KCQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kcqe))
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
91 #define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BNX2_PAGE_BITS - 5))
92 #define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)
93
94 #define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BNX2_PAGE_BITS - 5))
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
106 #define DEF_IPID_START          0x8000
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
122 struct cnic_ctx {
123         u32             cid;
124         void            *ctx;
125         dma_addr_t      mapping;
126 };
127
128 #define BNX2_MAX_CID            0x2000
129
130 struct 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
139 struct 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
149 struct kwqe_16_data {
150         u8      data[CNIC_KWQ16_DATA_SIZE];
151 };
152
153 struct cnic_iscsi {
154         struct cnic_dma         task_array_info;
155         struct cnic_dma         r2tq_info;
156         struct cnic_dma         hq_info;
157 };
158
159 struct 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;
166         unsigned long           ctx_flags;
167 #define CTX_FL_OFFLD_START      0
168 #define CTX_FL_DELETE_WAIT      1
169 #define CTX_FL_CID_ERROR        2
170         u8                      ulp_proto_id;
171         union {
172                 struct cnic_iscsi       *iscsi;
173         } proto;
174 };
175
176 struct 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;
184
185         u16             (*next_idx)(u16);
186         u16             (*hw_idx)(u16);
187 };
188
189 #define UIO_USE_TX_DOORBELL 0x017855DB
190
191 struct 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
208 struct 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
215 #define ULP_F_CALL_PENDING      2
216         struct cnic_ulp_ops __rcu *ulp_ops[MAX_CNIC_ULP_TYPE];
217
218         unsigned long cnic_local_flags;
219 #define CNIC_LCL_FL_KWQ_INIT            0x0
220 #define CNIC_LCL_FL_L2_WAIT             0x1
221 #define CNIC_LCL_FL_RINGS_INITED        0x2
222 #define CNIC_LCL_FL_STOP_ISCSI          0x4
223
224         struct cnic_dev *dev;
225
226         struct cnic_eth_dev *ethdev;
227
228         struct cnic_uio_dev *udev;
229
230         int             l2_rx_ring_size;
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
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
251         struct kcq_info kcq1;
252         struct kcq_info kcq2;
253
254         union {
255                 void                            *gen;
256                 struct status_block_msix        *bnx2;
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
261         } status_blk;
262
263         struct host_sp_status_block     *bnx2x_def_status_blk;
264
265         u32                             status_blk_num;
266         u32                             bnx2x_igu_sb_id;
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
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;
281         atomic_t                iscsi_conn;
282         u32                     iscsi_start_cid;
283
284         u32                     fcoe_init_cid;
285         u32                     fcoe_start_cid;
286         struct cnic_id_tbl      fcoe_cid_tbl;
287
288         u32                     max_cid_space;
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
298         struct delayed_work     delete_task;
299
300         struct cnic_ctx         *ctx_arr;
301         int                     ctx_blks;
302         int                     ctx_blk_size;
303         unsigned long           ctx_align;
304         int                     cids_per_blk;
305
306         u32                     chip_id;
307         int                     func;
308
309         u32                     shmem_base;
310
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 *);
323         void                    (*arm_int)(struct cnic_dev *, u32 index);
324         void                    (*close_conn)(struct cnic_sock *, u32 opcode);
325 };
326
327 struct bnx2x_bd_chain_next {
328         u32     addr_lo;
329         u32     addr_hi;
330         u8      reserved[8];
331 };
332
333 #define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T       (1)
334
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
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
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
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
362
363 #define BNX2X_FCOE_NUM_CONNECTIONS      1024
364
365 #define BNX2X_FCOE_L5_CID_BASE          MAX_ISCSI_TBL_SZ
366
367 #define BNX2X_CHIP_IS_E2_PLUS(bp) (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))
368
369 #define BNX2X_RX_DESC_CNT               (BNX2_PAGE_SIZE / \
370                                          sizeof(struct eth_rx_bd))
371 #define BNX2X_MAX_RX_DESC_CNT           (BNX2X_RX_DESC_CNT - 2)
372 #define BNX2X_RCQ_DESC_CNT              (BNX2_PAGE_SIZE / \
373                                          sizeof(union eth_rx_cqe))
374 #define BNX2X_MAX_RCQ_DESC_CNT          (BNX2X_RCQ_DESC_CNT - 1)
375
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
380 #define BNX2X_DEF_SB_ID                 HC_SP_SB_ID
381
382 #define BNX2X_SHMEM_MF_BLK_OFFSET       0x7e4
383
384 #define BNX2X_SHMEM_ADDR(base, field)   (base + \
385                                          offsetof(struct shmem_region, field))
386
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
395 #define BNX2X_MF_CFG_ADDR(base, field)                          \
396                         ((base) + offsetof(struct mf_cfg, field))
397
398 #ifndef ETH_MAX_RX_CLIENTS_E2
399 #define ETH_MAX_RX_CLIENTS_E2           ETH_MAX_RX_CLIENTS_E1H
400 #endif
401
402 #define CNIC_FUNC(cp)                   ((cp)->func)
403
404 #define BNX2X_HW_CID(bp, x)             ((BP_PORT(bp) << 23) | \
405                                          (BP_VN(bp) << 17) | (x))
406
407 #define BNX2X_SW_CID(x)                 (x & 0x1ffff)
408
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))
412
413 #ifndef MAX_STAT_COUNTER_ID
414 #define MAX_STAT_COUNTER_ID                                             \
415         (CHIP_IS_E1H(bp) ? MAX_STAT_COUNTER_ID_E1H :                    \
416          ((BNX2X_CHIP_IS_E2_PLUS(bp)) ? MAX_STAT_COUNTER_ID_E2 :        \
417           MAX_STAT_COUNTER_ID_E1))
418 #endif
419
420 #define CNIC_SUPPORTS_FCOE(cp)                                          \
421         (BNX2X_CHIP_IS_E2_PLUS(bp) && !NO_FCOE(bp))
422
423 #define CNIC_RAMROD_TMO                 (HZ / 4)
424
425 #endif
426