1 /* cnic_if.h: Broadcom CNIC core network driver.
2 *
3 * Copyright (c) 2006 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_IF_H
13 #define CNIC_IF_H
14
15 #define CNIC_MODULE_VERSION "2.0.0"
16 #define CNIC_MODULE_RELDATE "May 21, 2009"
17
18 #define CNIC_ULP_RDMA 0
19 #define CNIC_ULP_ISCSI 1
20 #define CNIC_ULP_L4 2
21 #define MAX_CNIC_ULP_TYPE_EXT 2
22 #define MAX_CNIC_ULP_TYPE 3
23
24 struct kwqe {
25 u32 kwqe_op_flag;
26
27 #define KWQE_OPCODE_MASK 0x00ff0000
28 #define KWQE_OPCODE_SHIFT 16
29 #define KWQE_FLAGS_LAYER_SHIFT 28
30 #define KWQE_OPCODE(x) ((x & KWQE_OPCODE_MASK) >> KWQE_OPCODE_SHIFT)
31
32 u32 kwqe_info0;
33 u32 kwqe_info1;
34 u32 kwqe_info2;
35 u32 kwqe_info3;
36 u32 kwqe_info4;
37 u32 kwqe_info5;
38 u32 kwqe_info6;
39 };
40
41 struct kwqe_16 {
42 u32 kwqe_info0;
43 u32 kwqe_info1;
44 u32 kwqe_info2;
45 u32 kwqe_info3;
46 };
47
48 struct kcqe {
49 u32 kcqe_info0;
50 u32 kcqe_info1;
51 u32 kcqe_info2;
52 u32 kcqe_info3;
53 u32 kcqe_info4;
54 u32 kcqe_info5;
55 u32 kcqe_info6;
56 u32 kcqe_op_flag;
57 #define KCQE_RAMROD_COMPLETION (0x1<<27) /* Everest */
58 #define KCQE_FLAGS_LAYER_MASK (0x7<<28)
59 #define KCQE_FLAGS_LAYER_MASK_MISC (0<<28)
60 #define KCQE_FLAGS_LAYER_MASK_L2 (2<<28)
61 #define KCQE_FLAGS_LAYER_MASK_L3 (3<<28)
62 #define KCQE_FLAGS_LAYER_MASK_L4 (4<<28)
63 #define KCQE_FLAGS_LAYER_MASK_L5_RDMA (5<<28)
64 #define KCQE_FLAGS_LAYER_MASK_L5_ISCSI (6<<28)
65 #define KCQE_FLAGS_NEXT (1<<31)
66 #define KCQE_FLAGS_OPCODE_MASK (0xff<<16)
67 #define KCQE_FLAGS_OPCODE_SHIFT (16)
68 #define KCQE_OPCODE(op) \
69 (((op) & KCQE_FLAGS_OPCODE_MASK) >> KCQE_FLAGS_OPCODE_SHIFT)
70 };
71
72 #define MAX_CNIC_CTL_DATA 64
73 #define MAX_DRV_CTL_DATA 64
74
75 #define CNIC_CTL_STOP_CMD 1
76 #define CNIC_CTL_START_CMD 2
77 #define CNIC_CTL_COMPLETION_CMD 3
78
79 #define DRV_CTL_IO_WR_CMD 0x101
80 #define DRV_CTL_IO_RD_CMD 0x102
81 #define DRV_CTL_CTX_WR_CMD 0x103
82 #define DRV_CTL_CTXTBL_WR_CMD 0x104
83 #define DRV_CTL_COMPLETION_CMD 0x105
84
85 struct cnic_ctl_completion {
86 u32 cid;
87 };
88
89 struct drv_ctl_completion {
90 u32 comp_count;
91 };
92
93 struct cnic_ctl_info {
94 int cmd;
95 union {
96 struct cnic_ctl_completion comp;
97 char bytes[MAX_CNIC_CTL_DATA];
98 } data;
99 };
100
101 struct drv_ctl_io {
102 u32 cid_addr;
103 u32 offset;
104 u32 data;
105 dma_addr_t dma_addr;
106 };
107
108 struct drv_ctl_info {
109 int cmd;
110 union {
111 struct drv_ctl_completion comp;
112 struct drv_ctl_io io;
113 char bytes[MAX_DRV_CTL_DATA];
114 } data;
115 };
116
117 struct cnic_ops {
118 struct module *cnic_owner;
119 /* Calls to these functions are protected by RCU. When
120 * unregistering, we wait for any calls to complete before
121 * continuing.
122 */
123 int (*cnic_handler)(void *, void *);
124 int (*cnic_ctl)(void *, struct cnic_ctl_info *);
125 };
126
127 #define MAX_CNIC_VEC 8
128
129 struct cnic_irq {
130 unsigned int vector;
131 void *status_blk;
132 u32 status_blk_num;
133 u32 irq_flags;
134 #define CNIC_IRQ_FL_MSIX 0x00000001
135 };
136
137 struct cnic_eth_dev {
138 struct module *drv_owner;
139 u32 drv_state;
140 #define CNIC_DRV_STATE_REGD 0x00000001
141 #define CNIC_DRV_STATE_USING_MSIX 0x00000002
142 u32 chip_id;
143 u32 max_kwqe_pending;
144 struct pci_dev *pdev;
145 void __iomem *io_base;
146
147 u32 ctx_tbl_offset;
148 u32 ctx_tbl_len;
149 int ctx_blk_size;
150 u32 starting_cid;
151 u32 max_iscsi_conn;
152 u32 max_fcoe_conn;
153 u32 max_rdma_conn;
154 u32 reserved0[2];
155
156 int num_irq;
157 struct cnic_irq irq_arr[MAX_CNIC_VEC];
158 int (*drv_register_cnic)(struct net_device *,
159 struct cnic_ops *, void *);
160 int (*drv_unregister_cnic)(struct net_device *);
161 int (*drv_submit_kwqes_32)(struct net_device *,
162 struct kwqe *[], u32);
163 int (*drv_submit_kwqes_16)(struct net_device *,
164 struct kwqe_16 *[], u32);
165 int (*drv_ctl)(struct net_device *, struct drv_ctl_info *);
166 unsigned long reserved1[2];
167 };
168
169 struct cnic_sockaddr {
170 union {
171 struct sockaddr_in v4;
172 struct sockaddr_in6 v6;
173 } local;
174 union {
175 struct sockaddr_in v4;
176 struct sockaddr_in6 v6;
177 } remote;
178 };
179
180 struct cnic_sock {
181 struct cnic_dev *dev;
182 void *context;
183 u32 src_ip[4];
184 u32 dst_ip[4];
185 u16 src_port;
186 u16 dst_port;
187 u16 vlan_id;
188 unsigned char old_ha[6];
189 unsigned char ha[6];
190 u32 mtu;
191 u32 cid;
192 u32 l5_cid;
193 u32 pg_cid;
194 int ulp_type;
195
196 u32 ka_timeout;
197 u32 ka_interval;
198 u8 ka_max_probe_count;
199 u8 tos;
200 u8 ttl;
201 u8 snd_seq_scale;
202 u32 rcv_buf;
203 u32 snd_buf;
204 u32 seed;
205
206 unsigned long tcp_flags;
207 #define SK_TCP_NO_DELAY_ACK 0x1
208 #define SK_TCP_KEEP_ALIVE 0x2
209 #define SK_TCP_NAGLE 0x4
210 #define SK_TCP_TIMESTAMP 0x8
211 #define SK_TCP_SACK 0x10
212 #define SK_TCP_SEG_SCALING 0x20
213 unsigned long flags;
214 #define SK_F_INUSE 0
215 #define SK_F_OFFLD_COMPLETE 1
216 #define SK_F_OFFLD_SCHED 2
217 #define SK_F_PG_OFFLD_COMPLETE 3
218 #define SK_F_CONNECT_START 4
219 #define SK_F_IPV6 5
220 #define SK_F_CLOSING 7
221
222 atomic_t ref_count;
223 u32 state;
224 struct kwqe kwqe1;
225 struct kwqe kwqe2;
226 struct kwqe kwqe3;
227 };
228
229 struct cnic_dev {
230 struct net_device *netdev;
231 struct pci_dev *pcidev;
232 void __iomem *regview;
233 struct list_head list;
234
235 int (*register_device)(struct cnic_dev *dev, int ulp_type,
236 void *ulp_ctx);
237 int (*unregister_device)(struct cnic_dev *dev, int ulp_type);
238 int (*submit_kwqes)(struct cnic_dev *dev, struct kwqe *wqes[],
239 u32 num_wqes);
240 int (*submit_kwqes_16)(struct cnic_dev *dev, struct kwqe_16 *wqes[],
241 u32 num_wqes);
242
243 int (*cm_create)(struct cnic_dev *, int, u32, u32, struct cnic_sock **,
244 void *);
245 int (*cm_destroy)(struct cnic_sock *);
246 int (*cm_connect)(struct cnic_sock *, struct cnic_sockaddr *);
247 int (*cm_abort)(struct cnic_sock *);
248 int (*cm_close)(struct cnic_sock *);
249 struct cnic_dev *(*cm_select_dev)(struct sockaddr_in *, int ulp_type);
250 int (*iscsi_nl_msg_recv)(struct cnic_dev *dev, u32 msg_type,
251 char *data, u16 data_size);
252 unsigned long flags;
253 #define CNIC_F_CNIC_UP 1
254 #define CNIC_F_BNX2_CLASS 3
255 #define CNIC_F_BNX2X_CLASS 4
256 atomic_t ref_count;
257 u8 mac_addr[6];
258
259 int max_iscsi_conn;
260 int max_fcoe_conn;
261 int max_rdma_conn;
262
263 void *cnic_priv;
264 };
265
266 #define CNIC_WR(dev, off, val) writel(val, dev->regview + off)
267 #define CNIC_WR16(dev, off, val) writew(val, dev->regview + off)
268 #define CNIC_WR8(dev, off, val) writeb(val, dev->regview + off)
269 #define CNIC_RD(dev, off) readl(dev->regview + off)
270 #define CNIC_RD16(dev, off) readw(dev->regview + off)
271
272 struct cnic_ulp_ops {
273 /* Calls to these functions are protected by RCU. When
274 * unregistering, we wait for any calls to complete before
275 * continuing.
276 */
277
278 void (*cnic_init)(struct cnic_dev *dev);
279 void (*cnic_exit)(struct cnic_dev *dev);
280 void (*cnic_start)(void *ulp_ctx);
281 void (*cnic_stop)(void *ulp_ctx);
282 void (*indicate_kcqes)(void *ulp_ctx, struct kcqe *cqes[],
283 u32 num_cqes);
284 void (*indicate_netevent)(void *ulp_ctx, unsigned long event);
285 void (*cm_connect_complete)(struct cnic_sock *);
286 void (*cm_close_complete)(struct cnic_sock *);
287 void (*cm_abort_complete)(struct cnic_sock *);
288 void (*cm_remote_close)(struct cnic_sock *);
289 void (*cm_remote_abort)(struct cnic_sock *);
290 void (*iscsi_nl_send_msg)(struct cnic_dev *dev, u32 msg_type,
291 char *data, u16 data_size);
292 struct module *owner;
293 atomic_t ref_count;
294 };
295
296 extern int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops);
297
298 extern int cnic_unregister_driver(int ulp_type);
299
300 extern struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev);
301
302 #endif
303
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