Root/drivers/net/cnic_if.h

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
24struct 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
41struct kwqe_16 {
42    u32 kwqe_info0;
43    u32 kwqe_info1;
44    u32 kwqe_info2;
45    u32 kwqe_info3;
46};
47
48struct 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
85struct cnic_ctl_completion {
86    u32 cid;
87};
88
89struct drv_ctl_completion {
90    u32 comp_count;
91};
92
93struct 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
101struct drv_ctl_io {
102    u32 cid_addr;
103    u32 offset;
104    u32 data;
105    dma_addr_t dma_addr;
106};
107
108struct 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
117struct 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
129struct 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
137struct 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
169struct 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
180struct 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
229struct 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
272struct 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
296extern int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops);
297
298extern int cnic_unregister_driver(int ulp_type);
299
300extern struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev);
301
302#endif
303

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