Merge branch 'for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
[pandora-kernel.git] / drivers / net / cnic.h
1 /* cnic.h: Broadcom CNIC core network driver.
2  *
3  * Copyright (c) 2006-2009 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 KWQ_PAGE_CNT    4
16 #define KCQ_PAGE_CNT    16
17
18 #define KWQ_CID                 24
19 #define KCQ_CID                 25
20
21 /*
22  *      krnlq_context definition
23  */
24 #define L5_KRNLQ_FLAGS  0x00000000
25 #define L5_KRNLQ_SIZE   0x00000000
26 #define L5_KRNLQ_TYPE   0x00000000
27 #define KRNLQ_FLAGS_PG_SZ                                       (0xf<<0)
28 #define KRNLQ_FLAGS_PG_SZ_256                                   (0<<0)
29 #define KRNLQ_FLAGS_PG_SZ_512                                   (1<<0)
30 #define KRNLQ_FLAGS_PG_SZ_1K                                    (2<<0)
31 #define KRNLQ_FLAGS_PG_SZ_2K                                    (3<<0)
32 #define KRNLQ_FLAGS_PG_SZ_4K                                    (4<<0)
33 #define KRNLQ_FLAGS_PG_SZ_8K                                    (5<<0)
34 #define KRNLQ_FLAGS_PG_SZ_16K                                   (6<<0)
35 #define KRNLQ_FLAGS_PG_SZ_32K                                   (7<<0)
36 #define KRNLQ_FLAGS_PG_SZ_64K                                   (8<<0)
37 #define KRNLQ_FLAGS_PG_SZ_128K                                  (9<<0)
38 #define KRNLQ_FLAGS_PG_SZ_256K                                  (10<<0)
39 #define KRNLQ_FLAGS_PG_SZ_512K                                  (11<<0)
40 #define KRNLQ_FLAGS_PG_SZ_1M                                    (12<<0)
41 #define KRNLQ_FLAGS_PG_SZ_2M                                    (13<<0)
42 #define KRNLQ_FLAGS_QE_SELF_SEQ                                 (1<<15)
43 #define KRNLQ_SIZE_TYPE_SIZE    ((((0x28 + 0x1f) & ~0x1f) / 0x20) << 16)
44 #define KRNLQ_TYPE_TYPE                                         (0xf<<28)
45 #define KRNLQ_TYPE_TYPE_EMPTY                                   (0<<28)
46 #define KRNLQ_TYPE_TYPE_KRNLQ                                   (6<<28)
47
48 #define L5_KRNLQ_HOST_QIDX              0x00000004
49 #define L5_KRNLQ_HOST_FW_QIDX           0x00000008
50 #define L5_KRNLQ_NX_QE_SELF_SEQ         0x0000000c
51 #define L5_KRNLQ_QE_SELF_SEQ_MAX        0x0000000c
52 #define L5_KRNLQ_NX_QE_HADDR_HI         0x00000010
53 #define L5_KRNLQ_NX_QE_HADDR_LO         0x00000014
54 #define L5_KRNLQ_PGTBL_PGIDX            0x00000018
55 #define L5_KRNLQ_NX_PG_QIDX             0x00000018
56 #define L5_KRNLQ_PGTBL_NPAGES           0x0000001c
57 #define L5_KRNLQ_QIDX_INCR              0x0000001c
58 #define L5_KRNLQ_PGTBL_HADDR_HI         0x00000020
59 #define L5_KRNLQ_PGTBL_HADDR_LO         0x00000024
60
61 #define BNX2_PG_CTX_MAP                 0x1a0034
62 #define BNX2_ISCSI_CTX_MAP              0x1a0074
63
64 struct cnic_redirect_entry {
65         struct dst_entry *old_dst;
66         struct dst_entry *new_dst;
67 };
68
69 #define MAX_COMPLETED_KCQE      64
70
71 #define MAX_CNIC_L5_CONTEXT     256
72
73 #define MAX_CM_SK_TBL_SZ        MAX_CNIC_L5_CONTEXT
74
75 #define MAX_ISCSI_TBL_SZ        256
76
77 #define CNIC_LOCAL_PORT_MIN     60000
78 #define CNIC_LOCAL_PORT_MAX     61000
79 #define CNIC_LOCAL_PORT_RANGE   (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)
80
81 #define KWQE_CNT (BCM_PAGE_SIZE / sizeof(struct kwqe))
82 #define KCQE_CNT (BCM_PAGE_SIZE / sizeof(struct kcqe))
83 #define MAX_KWQE_CNT (KWQE_CNT - 1)
84 #define MAX_KCQE_CNT (KCQE_CNT - 1)
85
86 #define MAX_KWQ_IDX     ((KWQ_PAGE_CNT * KWQE_CNT) - 1)
87 #define MAX_KCQ_IDX     ((KCQ_PAGE_CNT * KCQE_CNT) - 1)
88
89 #define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BCM_PAGE_BITS - 5))
90 #define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)
91
92 #define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BCM_PAGE_BITS - 5))
93 #define KCQ_IDX(x) ((x) & MAX_KCQE_CNT)
94
95 #define BNX2X_NEXT_KCQE(x) (((x) & (MAX_KCQE_CNT - 1)) ==               \
96                 (MAX_KCQE_CNT - 1)) ?                                   \
97                 (x) + 2 : (x) + 1
98
99 #define BNX2X_KWQ_DATA_PG(cp, x) ((x) / (cp)->kwq_16_data_pp)
100 #define BNX2X_KWQ_DATA_IDX(cp, x) ((x) % (cp)->kwq_16_data_pp)
101 #define BNX2X_KWQ_DATA(cp, x)                                           \
102         &(cp)->kwq_16_data[BNX2X_KWQ_DATA_PG(cp, x)][BNX2X_KWQ_DATA_IDX(cp, x)]
103
104 #define DEF_IPID_COUNT          0xc001
105
106 #define DEF_KA_TIMEOUT          10000
107 #define DEF_KA_INTERVAL         300000
108 #define DEF_KA_MAX_PROBE_COUNT  3
109 #define DEF_TOS                 0
110 #define DEF_TTL                 0xfe
111 #define DEF_SND_SEQ_SCALE       0
112 #define DEF_RCV_BUF             0xffff
113 #define DEF_SND_BUF             0xffff
114 #define DEF_SEED                0
115 #define DEF_MAX_RT_TIME         500
116 #define DEF_MAX_DA_COUNT        2
117 #define DEF_SWS_TIMER           1000
118 #define DEF_MAX_CWND            0xffff
119
120 struct cnic_ctx {
121         u32             cid;
122         void            *ctx;
123         dma_addr_t      mapping;
124 };
125
126 #define BNX2_MAX_CID            0x2000
127
128 struct cnic_dma {
129         int             num_pages;
130         void            **pg_arr;
131         dma_addr_t      *pg_map_arr;
132         int             pgtbl_size;
133         u32             *pgtbl;
134         dma_addr_t      pgtbl_map;
135 };
136
137 struct cnic_id_tbl {
138         spinlock_t      lock;
139         u32             start;
140         u32             max;
141         u32             next;
142         unsigned long   *table;
143 };
144
145 #define CNIC_KWQ16_DATA_SIZE    128
146
147 struct kwqe_16_data {
148         u8      data[CNIC_KWQ16_DATA_SIZE];
149 };
150
151 struct cnic_iscsi {
152         struct cnic_dma         task_array_info;
153         struct cnic_dma         r2tq_info;
154         struct cnic_dma         hq_info;
155 };
156
157 struct cnic_context {
158         u32                     cid;
159         struct kwqe_16_data     *kwqe_data;
160         dma_addr_t              kwqe_data_mapping;
161         wait_queue_head_t       waitq;
162         int                     wait_cond;
163         unsigned long           timestamp;
164         u32                     ctx_flags;
165 #define CTX_FL_OFFLD_START      0x00000001
166         u8                      ulp_proto_id;
167         union {
168                 struct cnic_iscsi       *iscsi;
169         } proto;
170 };
171
172 struct cnic_local {
173
174         spinlock_t cnic_ulp_lock;
175         void *ulp_handle[MAX_CNIC_ULP_TYPE];
176         unsigned long ulp_flags[MAX_CNIC_ULP_TYPE];
177 #define ULP_F_INIT      0
178 #define ULP_F_START     1
179         struct cnic_ulp_ops *ulp_ops[MAX_CNIC_ULP_TYPE];
180
181         /* protected by ulp_lock */
182         u32 cnic_local_flags;
183 #define CNIC_LCL_FL_KWQ_INIT    0x00000001
184
185         struct cnic_dev *dev;
186
187         struct cnic_eth_dev *ethdev;
188
189         void            *l2_ring;
190         dma_addr_t      l2_ring_map;
191         int             l2_ring_size;
192         int             l2_rx_ring_size;
193
194         void            *l2_buf;
195         dma_addr_t      l2_buf_map;
196         int             l2_buf_size;
197         int             l2_single_buf_size;
198
199         u16             *rx_cons_ptr;
200         u16             *tx_cons_ptr;
201         u16             rx_cons;
202         u16             tx_cons;
203
204         u32 kwq_cid_addr;
205         u32 kcq_cid_addr;
206
207         struct cnic_dma         kwq_info;
208         struct kwqe             **kwq;
209
210         struct cnic_dma         kwq_16_data_info;
211
212         u16             max_kwq_idx;
213
214         u16             kwq_prod_idx;
215         u32             kwq_io_addr;
216
217         u16             *kwq_con_idx_ptr;
218         u16             kwq_con_idx;
219
220         struct cnic_dma kcq_info;
221         struct kcqe     **kcq;
222
223         u16             kcq_prod_idx;
224         u32             kcq_io_addr;
225
226         void                            *status_blk;
227         struct status_block_msix        *bnx2_status_blk;
228         struct host_status_block        *bnx2x_status_blk;
229
230         u32                             status_blk_num;
231         u32                             int_num;
232         u32                             last_status_idx;
233         struct tasklet_struct           cnic_irq_task;
234
235         struct kcqe             *completed_kcq[MAX_COMPLETED_KCQE];
236
237         struct cnic_sock        *csk_tbl;
238         struct cnic_id_tbl      csk_port_tbl;
239
240         struct cnic_dma         conn_buf_info;
241         struct cnic_dma         gbl_buf_info;
242
243         struct cnic_iscsi       *iscsi_tbl;
244         struct cnic_context     *ctx_tbl;
245         struct cnic_id_tbl      cid_tbl;
246         int                     max_iscsi_conn;
247         atomic_t                iscsi_conn;
248
249         /* per connection parameters */
250         int                     num_iscsi_tasks;
251         int                     num_ccells;
252         int                     task_array_size;
253         int                     r2tq_size;
254         int                     hq_size;
255         int                     num_cqs;
256
257         struct cnic_ctx         *ctx_arr;
258         int                     ctx_blks;
259         int                     ctx_blk_size;
260         int                     cids_per_blk;
261
262         u32                     chip_id;
263         int                     func;
264         u32                     shmem_base;
265
266         u32                     uio_dev;
267         struct uio_info         *cnic_uinfo;
268
269         struct cnic_ops         *cnic_ops;
270         int                     (*start_hw)(struct cnic_dev *);
271         void                    (*stop_hw)(struct cnic_dev *);
272         void                    (*setup_pgtbl)(struct cnic_dev *,
273                                                struct cnic_dma *);
274         int                     (*alloc_resc)(struct cnic_dev *);
275         void                    (*free_resc)(struct cnic_dev *);
276         int                     (*start_cm)(struct cnic_dev *);
277         void                    (*stop_cm)(struct cnic_dev *);
278         void                    (*enable_int)(struct cnic_dev *);
279         void                    (*disable_int_sync)(struct cnic_dev *);
280         void                    (*ack_int)(struct cnic_dev *);
281         void                    (*close_conn)(struct cnic_sock *, u32 opcode);
282         u16                     (*next_idx)(u16);
283         u16                     (*hw_idx)(u16);
284 };
285
286 struct bnx2x_bd_chain_next {
287         u32     addr_lo;
288         u32     addr_hi;
289         u8      reserved[8];
290 };
291
292 #define ISCSI_RAMROD_CMD_ID_UPDATE_CONN         (ISCSI_KCQE_OPCODE_UPDATE_CONN)
293 #define ISCSI_RAMROD_CMD_ID_INIT                (ISCSI_KCQE_OPCODE_INIT)
294
295 #define CDU_REGION_NUMBER_XCM_AG 2
296 #define CDU_REGION_NUMBER_UCM_AG 4
297
298 #endif
299