Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / net / ethernet / broadcom / cnic.h
1 /* cnic.h: QLogic CNIC core network driver.
2  *
3  * Copyright (c) 2006-2014 Broadcom Corporation
4  * Copyright (c) 2014 QLogic Corporation
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation.
9  *
10  */
11
12
13 #ifndef CNIC_H
14 #define CNIC_H
15
16 #define HC_INDEX_ISCSI_EQ_CONS                  6
17
18 #define HC_INDEX_FCOE_EQ_CONS                   3
19
20 #define HC_SP_INDEX_ETH_ISCSI_CQ_CONS           5
21 #define HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS        1
22
23 #define KWQ_PAGE_CNT    4
24 #define KCQ_PAGE_CNT    16
25
26 #define KWQ_CID                 24
27 #define KCQ_CID                 25
28
29 /*
30  *      krnlq_context definition
31  */
32 #define L5_KRNLQ_FLAGS  0x00000000
33 #define L5_KRNLQ_SIZE   0x00000000
34 #define L5_KRNLQ_TYPE   0x00000000
35 #define KRNLQ_FLAGS_PG_SZ                                       (0xf<<0)
36 #define KRNLQ_FLAGS_PG_SZ_256                                   (0<<0)
37 #define KRNLQ_FLAGS_PG_SZ_512                                   (1<<0)
38 #define KRNLQ_FLAGS_PG_SZ_1K                                    (2<<0)
39 #define KRNLQ_FLAGS_PG_SZ_2K                                    (3<<0)
40 #define KRNLQ_FLAGS_PG_SZ_4K                                    (4<<0)
41 #define KRNLQ_FLAGS_PG_SZ_8K                                    (5<<0)
42 #define KRNLQ_FLAGS_PG_SZ_16K                                   (6<<0)
43 #define KRNLQ_FLAGS_PG_SZ_32K                                   (7<<0)
44 #define KRNLQ_FLAGS_PG_SZ_64K                                   (8<<0)
45 #define KRNLQ_FLAGS_PG_SZ_128K                                  (9<<0)
46 #define KRNLQ_FLAGS_PG_SZ_256K                                  (10<<0)
47 #define KRNLQ_FLAGS_PG_SZ_512K                                  (11<<0)
48 #define KRNLQ_FLAGS_PG_SZ_1M                                    (12<<0)
49 #define KRNLQ_FLAGS_PG_SZ_2M                                    (13<<0)
50 #define KRNLQ_FLAGS_QE_SELF_SEQ                                 (1<<15)
51 #define KRNLQ_SIZE_TYPE_SIZE    ((((0x28 + 0x1f) & ~0x1f) / 0x20) << 16)
52 #define KRNLQ_TYPE_TYPE                                         (0xf<<28)
53 #define KRNLQ_TYPE_TYPE_EMPTY                                   (0<<28)
54 #define KRNLQ_TYPE_TYPE_KRNLQ                                   (6<<28)
55
56 #define L5_KRNLQ_HOST_QIDX              0x00000004
57 #define L5_KRNLQ_HOST_FW_QIDX           0x00000008
58 #define L5_KRNLQ_NX_QE_SELF_SEQ         0x0000000c
59 #define L5_KRNLQ_QE_SELF_SEQ_MAX        0x0000000c
60 #define L5_KRNLQ_NX_QE_HADDR_HI         0x00000010
61 #define L5_KRNLQ_NX_QE_HADDR_LO         0x00000014
62 #define L5_KRNLQ_PGTBL_PGIDX            0x00000018
63 #define L5_KRNLQ_NX_PG_QIDX             0x00000018
64 #define L5_KRNLQ_PGTBL_NPAGES           0x0000001c
65 #define L5_KRNLQ_QIDX_INCR              0x0000001c
66 #define L5_KRNLQ_PGTBL_HADDR_HI         0x00000020
67 #define L5_KRNLQ_PGTBL_HADDR_LO         0x00000024
68
69 #define BNX2_PG_CTX_MAP                 0x1a0034
70 #define BNX2_ISCSI_CTX_MAP              0x1a0074
71
72 #define MAX_COMPLETED_KCQE      64
73
74 #define MAX_CNIC_L5_CONTEXT     256
75
76 #define MAX_CM_SK_TBL_SZ        MAX_CNIC_L5_CONTEXT
77
78 #define MAX_ISCSI_TBL_SZ        256
79
80 #define CNIC_LOCAL_PORT_MIN     60000
81 #define CNIC_LOCAL_PORT_MAX     61024
82 #define CNIC_LOCAL_PORT_RANGE   (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)
83
84 #define KWQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kwqe))
85 #define KCQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kcqe))
86 #define MAX_KWQE_CNT (KWQE_CNT - 1)
87 #define MAX_KCQE_CNT (KCQE_CNT - 1)
88
89 #define MAX_KWQ_IDX     ((KWQ_PAGE_CNT * KWQE_CNT) - 1)
90 #define MAX_KCQ_IDX     ((KCQ_PAGE_CNT * KCQE_CNT) - 1)
91
92 #define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BNX2_PAGE_BITS - 5))
93 #define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)
94
95 #define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BNX2_PAGE_BITS - 5))
96 #define KCQ_IDX(x) ((x) & MAX_KCQE_CNT)
97
98 #define BNX2X_NEXT_KCQE(x) (((x) & (MAX_KCQE_CNT - 1)) ==               \
99                 (MAX_KCQE_CNT - 1)) ?                                   \
100                 (x) + 2 : (x) + 1
101
102 #define BNX2X_KWQ_DATA_PG(cp, x) ((x) / (cp)->kwq_16_data_pp)
103 #define BNX2X_KWQ_DATA_IDX(cp, x) ((x) % (cp)->kwq_16_data_pp)
104 #define BNX2X_KWQ_DATA(cp, x)                                           \
105         &(cp)->kwq_16_data[BNX2X_KWQ_DATA_PG(cp, x)][BNX2X_KWQ_DATA_IDX(cp, x)]
106
107 #define DEF_IPID_START          0x8000
108
109 #define DEF_KA_TIMEOUT          10000
110 #define DEF_KA_INTERVAL         300000
111 #define DEF_KA_MAX_PROBE_COUNT  3
112 #define DEF_TOS                 0
113 #define DEF_TTL                 0xfe
114 #define DEF_SND_SEQ_SCALE       0
115 #define DEF_RCV_BUF             0xffff
116 #define DEF_SND_BUF             0xffff
117 #define DEF_SEED                0
118 #define DEF_MAX_RT_TIME         500
119 #define DEF_MAX_DA_COUNT        2
120 #define DEF_SWS_TIMER           1000
121 #define DEF_MAX_CWND            0xffff
122
123 struct cnic_ctx {
124         u32             cid;
125         void            *ctx;
126         dma_addr_t      mapping;
127 };
128
129 #define BNX2_MAX_CID            0x2000
130
131 struct cnic_dma {
132         int             num_pages;
133         void            **pg_arr;
134         dma_addr_t      *pg_map_arr;
135         int             pgtbl_size;
136         u32             *pgtbl;
137         dma_addr_t      pgtbl_map;
138 };
139
140 struct cnic_id_tbl {
141         spinlock_t      lock;
142         u32             start;
143         u32             max;
144         u32             next;
145         unsigned long   *table;
146 };
147
148 #define CNIC_KWQ16_DATA_SIZE    128
149
150 struct kwqe_16_data {
151         u8      data[CNIC_KWQ16_DATA_SIZE];
152 };
153
154 struct cnic_iscsi {
155         struct cnic_dma         task_array_info;
156         struct cnic_dma         r2tq_info;
157         struct cnic_dma         hq_info;
158 };
159
160 struct cnic_context {
161         u32                     cid;
162         struct kwqe_16_data     *kwqe_data;
163         dma_addr_t              kwqe_data_mapping;
164         wait_queue_head_t       waitq;
165         int                     wait_cond;
166         unsigned long           timestamp;
167         unsigned long           ctx_flags;
168 #define CTX_FL_OFFLD_START      0
169 #define CTX_FL_DELETE_WAIT      1
170 #define CTX_FL_CID_ERROR        2
171         u8                      ulp_proto_id;
172         union {
173                 struct cnic_iscsi       *iscsi;
174         } proto;
175 };
176
177 struct kcq_info {
178         struct cnic_dma dma;
179         struct kcqe     **kcq;
180
181         u16             *hw_prod_idx_ptr;
182         u16             sw_prod_idx;
183         u16             *status_idx_ptr;
184         u32             io_addr;
185
186         u16             (*next_idx)(u16);
187         u16             (*hw_idx)(u16);
188 };
189
190 #define UIO_USE_TX_DOORBELL 0x017855DB
191
192 struct cnic_uio_dev {
193         struct uio_info         cnic_uinfo;
194         u32                     uio_dev;
195
196         int                     l2_ring_size;
197         void                    *l2_ring;
198         dma_addr_t              l2_ring_map;
199
200         int                     l2_buf_size;
201         void                    *l2_buf;
202         dma_addr_t              l2_buf_map;
203
204         struct cnic_dev         *dev;
205         struct pci_dev          *pdev;
206         struct list_head        list;
207 };
208
209 struct cnic_local {
210
211         spinlock_t cnic_ulp_lock;
212         void *ulp_handle[MAX_CNIC_ULP_TYPE];
213         unsigned long ulp_flags[MAX_CNIC_ULP_TYPE];
214 #define ULP_F_INIT      0
215 #define ULP_F_START     1
216 #define ULP_F_CALL_PENDING      2
217         struct cnic_ulp_ops __rcu *ulp_ops[MAX_CNIC_ULP_TYPE];
218
219         unsigned long cnic_local_flags;
220 #define CNIC_LCL_FL_KWQ_INIT            0x0
221 #define CNIC_LCL_FL_L2_WAIT             0x1
222 #define CNIC_LCL_FL_RINGS_INITED        0x2
223 #define CNIC_LCL_FL_STOP_ISCSI          0x4
224
225         struct cnic_dev *dev;
226
227         struct cnic_eth_dev *ethdev;
228
229         struct cnic_uio_dev *udev;
230
231         int             l2_rx_ring_size;
232         int             l2_single_buf_size;
233
234         u16             *rx_cons_ptr;
235         u16             *tx_cons_ptr;
236         u16             rx_cons;
237         u16             tx_cons;
238
239         struct cnic_dma         kwq_info;
240         struct kwqe             **kwq;
241
242         struct cnic_dma         kwq_16_data_info;
243
244         u16             max_kwq_idx;
245
246         u16             kwq_prod_idx;
247         u32             kwq_io_addr;
248
249         u16             *kwq_con_idx_ptr;
250         u16             kwq_con_idx;
251
252         struct kcq_info kcq1;
253         struct kcq_info kcq2;
254
255         union {
256                 void                            *gen;
257                 struct status_block_msix        *bnx2;
258                 struct host_hc_status_block_e1x *bnx2x_e1x;
259                 /* index values - which counter to update */
260                 #define SM_RX_ID                0
261                 #define SM_TX_ID                1
262         } status_blk;
263
264         struct host_sp_status_block     *bnx2x_def_status_blk;
265
266         u32                             status_blk_num;
267         u32                             bnx2x_igu_sb_id;
268         u32                             int_num;
269         u32                             last_status_idx;
270         struct tasklet_struct           cnic_irq_task;
271
272         struct kcqe             *completed_kcq[MAX_COMPLETED_KCQE];
273
274         struct cnic_sock        *csk_tbl;
275         struct cnic_id_tbl      csk_port_tbl;
276
277         struct cnic_dma         gbl_buf_info;
278
279         struct cnic_iscsi       *iscsi_tbl;
280         struct cnic_context     *ctx_tbl;
281         struct cnic_id_tbl      cid_tbl;
282         atomic_t                iscsi_conn;
283         u32                     iscsi_start_cid;
284
285         u32                     fcoe_init_cid;
286         u32                     fcoe_start_cid;
287         struct cnic_id_tbl      fcoe_cid_tbl;
288
289         u32                     max_cid_space;
290
291         /* per connection parameters */
292         int                     num_iscsi_tasks;
293         int                     num_ccells;
294         int                     task_array_size;
295         int                     r2tq_size;
296         int                     hq_size;
297         int                     num_cqs;
298
299         struct delayed_work     delete_task;
300
301         struct cnic_ctx         *ctx_arr;
302         int                     ctx_blks;
303         int                     ctx_blk_size;
304         unsigned long           ctx_align;
305         int                     cids_per_blk;
306
307         u32                     chip_id;
308         int                     func;
309
310         u32                     shmem_base;
311
312         struct cnic_ops         *cnic_ops;
313         int                     (*start_hw)(struct cnic_dev *);
314         void                    (*stop_hw)(struct cnic_dev *);
315         void                    (*setup_pgtbl)(struct cnic_dev *,
316                                                struct cnic_dma *);
317         int                     (*alloc_resc)(struct cnic_dev *);
318         void                    (*free_resc)(struct cnic_dev *);
319         int                     (*start_cm)(struct cnic_dev *);
320         void                    (*stop_cm)(struct cnic_dev *);
321         void                    (*enable_int)(struct cnic_dev *);
322         void                    (*disable_int_sync)(struct cnic_dev *);
323         void                    (*ack_int)(struct cnic_dev *);
324         void                    (*arm_int)(struct cnic_dev *, u32 index);
325         void                    (*close_conn)(struct cnic_sock *, u32 opcode);
326 };
327
328 struct bnx2x_bd_chain_next {
329         u32     addr_lo;
330         u32     addr_hi;
331         u8      reserved[8];
332 };
333
334 #define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T       (1)
335
336 #define ISCSI_RAMROD_CMD_ID_UPDATE_CONN         (ISCSI_KCQE_OPCODE_UPDATE_CONN)
337 #define ISCSI_RAMROD_CMD_ID_INIT                (ISCSI_KCQE_OPCODE_INIT)
338
339 #define CDU_REGION_NUMBER_XCM_AG 2
340 #define CDU_REGION_NUMBER_UCM_AG 4
341
342 #define CDU_VALID_DATA(_cid, _region, _type)    \
343         (((_cid) << 8) | (((_region)&0xf)<<4) | (((_type)&0xf)))
344
345 #define CDU_CRC8(_cid, _region, _type)  \
346         (calc_crc8(CDU_VALID_DATA(_cid, _region, _type), 0xff))
347
348 #define CDU_RSRVD_VALUE_TYPE_A(_cid, _region, _type)    \
349         (0x80 | ((CDU_CRC8(_cid, _region, _type)) & 0x7f))
350
351 #define BNX2X_CONTEXT_MEM_SIZE          1024
352 #define BNX2X_FCOE_CID                  16
353
354 #define BNX2X_ISCSI_START_CID           18
355 #define BNX2X_ISCSI_NUM_CONNECTIONS     128
356 #define BNX2X_ISCSI_TASK_CONTEXT_SIZE   128
357 #define BNX2X_ISCSI_MAX_PENDING_R2TS    4
358 #define BNX2X_ISCSI_R2TQE_SIZE          8
359 #define BNX2X_ISCSI_HQ_BD_SIZE          64
360 #define BNX2X_ISCSI_GLB_BUF_SIZE        64
361 #define BNX2X_ISCSI_PBL_NOT_CACHED      0xff
362 #define BNX2X_ISCSI_PDU_HEADER_NOT_CACHED       0xff
363
364 #define BNX2X_FCOE_NUM_CONNECTIONS      1024
365
366 #define BNX2X_FCOE_L5_CID_BASE          MAX_ISCSI_TBL_SZ
367
368 #define BNX2X_CHIP_IS_E2_PLUS(bp) (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))
369
370 #define BNX2X_RX_DESC_CNT               (BNX2_PAGE_SIZE / \
371                                          sizeof(struct eth_rx_bd))
372 #define BNX2X_MAX_RX_DESC_CNT           (BNX2X_RX_DESC_CNT - 2)
373 #define BNX2X_RCQ_DESC_CNT              (BNX2_PAGE_SIZE / \
374                                          sizeof(union eth_rx_cqe))
375 #define BNX2X_MAX_RCQ_DESC_CNT          (BNX2X_RCQ_DESC_CNT - 1)
376
377 #define BNX2X_NEXT_RCQE(x) (((x) & BNX2X_MAX_RCQ_DESC_CNT) ==           \
378                 (BNX2X_MAX_RCQ_DESC_CNT - 1)) ?                         \
379                 ((x) + 2) : ((x) + 1)
380
381 #define BNX2X_DEF_SB_ID                 HC_SP_SB_ID
382
383 #define BNX2X_SHMEM_MF_BLK_OFFSET       0x7e4
384
385 #define BNX2X_SHMEM_ADDR(base, field)   (base + \
386                                          offsetof(struct shmem_region, field))
387
388 #define BNX2X_SHMEM2_ADDR(base, field)  (base + \
389                                          offsetof(struct shmem2_region, field))
390
391 #define BNX2X_SHMEM2_HAS(base, field)                           \
392                 ((base) &&                                      \
393                  (CNIC_RD(dev, BNX2X_SHMEM2_ADDR(base, size)) > \
394                   offsetof(struct shmem2_region, field)))
395
396 #define BNX2X_MF_CFG_ADDR(base, field)                          \
397                         ((base) + offsetof(struct mf_cfg, field))
398
399 #ifndef ETH_MAX_RX_CLIENTS_E2
400 #define ETH_MAX_RX_CLIENTS_E2           ETH_MAX_RX_CLIENTS_E1H
401 #endif
402
403 #define CNIC_FUNC(cp)                   ((cp)->func)
404
405 #define BNX2X_HW_CID(bp, x)             ((BP_PORT(bp) << 23) | \
406                                          (BP_VN(bp) << 17) | (x))
407
408 #define BNX2X_SW_CID(x)                 (x & 0x1ffff)
409
410 #define BNX2X_CL_QZONE_ID(bp, cli)                                      \
411                 (BNX2X_CHIP_IS_E2_PLUS(bp) ? cli :                      \
412                  cli + (BP_PORT(bp) * ETH_MAX_RX_CLIENTS_E1H))
413
414 #ifndef MAX_STAT_COUNTER_ID
415 #define MAX_STAT_COUNTER_ID                                             \
416         (CHIP_IS_E1H(bp) ? MAX_STAT_COUNTER_ID_E1H :                    \
417          ((BNX2X_CHIP_IS_E2_PLUS(bp)) ? MAX_STAT_COUNTER_ID_E2 :        \
418           MAX_STAT_COUNTER_ID_E1))
419 #endif
420
421 #define CNIC_SUPPORTS_FCOE(cp)                                          \
422         (BNX2X_CHIP_IS_E2_PLUS(bp) && !NO_FCOE(bp))
423
424 #define CNIC_RAMROD_TMO                 (HZ / 4)
425
426 #endif
427