[linux-2.6-block.git] / drivers / net / cnic.h

/* cnic.h: Broadcom CNIC core network driver.
 *
 * Copyright (c) 2006-2009 Broadcom Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation.
 *
 */


#ifndef CNIC_H
#define CNIC_H

#define KWQ_PAGE_CNT	4
#define KCQ_PAGE_CNT	16

#define KWQ_CID 		24
#define KCQ_CID 		25

/*
 *	krnlq_context definition
 */
#define L5_KRNLQ_FLAGS	0x00000000
#define L5_KRNLQ_SIZE	0x00000000
#define L5_KRNLQ_TYPE	0x00000000
#define KRNLQ_FLAGS_PG_SZ					(0xf<<0)
#define KRNLQ_FLAGS_PG_SZ_256					(0<<0)
#define KRNLQ_FLAGS_PG_SZ_512					(1<<0)
#define KRNLQ_FLAGS_PG_SZ_1K					(2<<0)
#define KRNLQ_FLAGS_PG_SZ_2K					(3<<0)
#define KRNLQ_FLAGS_PG_SZ_4K					(4<<0)
#define KRNLQ_FLAGS_PG_SZ_8K					(5<<0)
#define KRNLQ_FLAGS_PG_SZ_16K					(6<<0)
#define KRNLQ_FLAGS_PG_SZ_32K					(7<<0)
#define KRNLQ_FLAGS_PG_SZ_64K					(8<<0)
#define KRNLQ_FLAGS_PG_SZ_128K					(9<<0)
#define KRNLQ_FLAGS_PG_SZ_256K					(10<<0)
#define KRNLQ_FLAGS_PG_SZ_512K					(11<<0)
#define KRNLQ_FLAGS_PG_SZ_1M					(12<<0)
#define KRNLQ_FLAGS_PG_SZ_2M					(13<<0)
#define KRNLQ_FLAGS_QE_SELF_SEQ					(1<<15)
#define KRNLQ_SIZE_TYPE_SIZE	((((0x28 + 0x1f) & ~0x1f) / 0x20) << 16)
#define KRNLQ_TYPE_TYPE						(0xf<<28)
#define KRNLQ_TYPE_TYPE_EMPTY					(0<<28)
#define KRNLQ_TYPE_TYPE_KRNLQ					(6<<28)

#define L5_KRNLQ_HOST_QIDX		0x00000004
#define L5_KRNLQ_HOST_FW_QIDX		0x00000008
#define L5_KRNLQ_NX_QE_SELF_SEQ 	0x0000000c
#define L5_KRNLQ_QE_SELF_SEQ_MAX	0x0000000c
#define L5_KRNLQ_NX_QE_HADDR_HI 	0x00000010
#define L5_KRNLQ_NX_QE_HADDR_LO 	0x00000014
#define L5_KRNLQ_PGTBL_PGIDX		0x00000018
#define L5_KRNLQ_NX_PG_QIDX 		0x00000018
#define L5_KRNLQ_PGTBL_NPAGES		0x0000001c
#define L5_KRNLQ_QIDX_INCR		0x0000001c
#define L5_KRNLQ_PGTBL_HADDR_HI 	0x00000020
#define L5_KRNLQ_PGTBL_HADDR_LO 	0x00000024

#define BNX2_PG_CTX_MAP			0x1a0034
#define BNX2_ISCSI_CTX_MAP		0x1a0074

struct cnic_redirect_entry {
	struct dst_entry *old_dst;
	struct dst_entry *new_dst;
};

#define MAX_COMPLETED_KCQE	64

#define MAX_CNIC_L5_CONTEXT	256

#define MAX_CM_SK_TBL_SZ	MAX_CNIC_L5_CONTEXT

#define MAX_ISCSI_TBL_SZ	256

#define CNIC_LOCAL_PORT_MIN	60000
#define CNIC_LOCAL_PORT_MAX	61000
#define CNIC_LOCAL_PORT_RANGE	(CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)

#define KWQE_CNT (BCM_PAGE_SIZE / sizeof(struct kwqe))
#define KCQE_CNT (BCM_PAGE_SIZE / sizeof(struct kcqe))
#define MAX_KWQE_CNT (KWQE_CNT - 1)
#define MAX_KCQE_CNT (KCQE_CNT - 1)

#define MAX_KWQ_IDX	((KWQ_PAGE_CNT * KWQE_CNT) - 1)
#define MAX_KCQ_IDX	((KCQ_PAGE_CNT * KCQE_CNT) - 1)

#define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BCM_PAGE_BITS - 5))
#define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)

#define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BCM_PAGE_BITS - 5))
#define KCQ_IDX(x) ((x) & MAX_KCQE_CNT)

#define BNX2X_NEXT_KCQE(x) (((x) & (MAX_KCQE_CNT - 1)) ==		\
		(MAX_KCQE_CNT - 1)) ?					\
		(x) + 2 : (x) + 1

#define BNX2X_KWQ_DATA_PG(cp, x) ((x) / (cp)->kwq_16_data_pp)
#define BNX2X_KWQ_DATA_IDX(cp, x) ((x) % (cp)->kwq_16_data_pp)
#define BNX2X_KWQ_DATA(cp, x)						\
	&(cp)->kwq_16_data[BNX2X_KWQ_DATA_PG(cp, x)][BNX2X_KWQ_DATA_IDX(cp, x)]

#define DEF_IPID_COUNT		0xc001

#define DEF_KA_TIMEOUT		10000
#define DEF_KA_INTERVAL		300000
#define DEF_KA_MAX_PROBE_COUNT	3
#define DEF_TOS			0
#define DEF_TTL			0xfe
#define DEF_SND_SEQ_SCALE	0
#define DEF_RCV_BUF		0xffff
#define DEF_SND_BUF		0xffff
#define DEF_SEED		0
#define DEF_MAX_RT_TIME		500
#define DEF_MAX_DA_COUNT	2
#define DEF_SWS_TIMER		1000
#define DEF_MAX_CWND		0xffff

struct cnic_ctx {
	u32		cid;
	void		*ctx;
	dma_addr_t	mapping;
};

#define BNX2_MAX_CID		0x2000

struct cnic_dma {
	int		num_pages;
	void		**pg_arr;
	dma_addr_t	*pg_map_arr;
	int		pgtbl_size;
	u32		*pgtbl;
	dma_addr_t	pgtbl_map;
};

struct cnic_id_tbl {
	spinlock_t	lock;
	u32		start;
	u32		max;
	u32		next;
	unsigned long	*table;
};

#define CNIC_KWQ16_DATA_SIZE	128

struct kwqe_16_data {
	u8	data[CNIC_KWQ16_DATA_SIZE];
};

struct cnic_iscsi {
	struct cnic_dma		task_array_info;
	struct cnic_dma		r2tq_info;
	struct cnic_dma		hq_info;
};

struct cnic_context {
	u32			cid;
	struct kwqe_16_data	*kwqe_data;
	dma_addr_t		kwqe_data_mapping;
	wait_queue_head_t	waitq;
	int			wait_cond;
	unsigned long		timestamp;
	u32			ctx_flags;
#define	CTX_FL_OFFLD_START	0x00000001
	u8			ulp_proto_id;
	union {
		struct cnic_iscsi	*iscsi;
	} proto;
};

struct cnic_local {

	spinlock_t cnic_ulp_lock;
	void *ulp_handle[MAX_CNIC_ULP_TYPE];
	unsigned long ulp_flags[MAX_CNIC_ULP_TYPE];
#define ULP_F_INIT	0
#define ULP_F_START	1
#define ULP_F_CALL_PENDING	2
	struct cnic_ulp_ops *ulp_ops[MAX_CNIC_ULP_TYPE];

	/* protected by ulp_lock */
	u32 cnic_local_flags;
#define	CNIC_LCL_FL_KWQ_INIT	0x00000001

	struct cnic_dev *dev;

	struct cnic_eth_dev *ethdev;

	void		*l2_ring;
	dma_addr_t	l2_ring_map;
	int		l2_ring_size;
	int		l2_rx_ring_size;

	void		*l2_buf;
	dma_addr_t	l2_buf_map;
	int		l2_buf_size;
	int		l2_single_buf_size;

	u16		*rx_cons_ptr;
	u16		*tx_cons_ptr;
	u16		rx_cons;
	u16		tx_cons;

	u32 kwq_cid_addr;
	u32 kcq_cid_addr;

	struct cnic_dma		kwq_info;
	struct kwqe		**kwq;

	struct cnic_dma		kwq_16_data_info;

	u16		max_kwq_idx;

	u16		kwq_prod_idx;
	u32		kwq_io_addr;

	u16		*kwq_con_idx_ptr;
	u16		kwq_con_idx;

	struct cnic_dma	kcq_info;
	struct kcqe	**kcq;

	u16		kcq_prod_idx;
	u32		kcq_io_addr;

	void				*status_blk;
	struct status_block_msix	*bnx2_status_blk;
	struct host_status_block	*bnx2x_status_blk;

	u32				status_blk_num;
	u32				int_num;
	u32				last_status_idx;
	struct tasklet_struct		cnic_irq_task;

	struct kcqe		*completed_kcq[MAX_COMPLETED_KCQE];

	struct cnic_sock	*csk_tbl;
	struct cnic_id_tbl	csk_port_tbl;

	struct cnic_dma		conn_buf_info;
	struct cnic_dma		gbl_buf_info;

	struct cnic_iscsi	*iscsi_tbl;
	struct cnic_context	*ctx_tbl;
	struct cnic_id_tbl	cid_tbl;
	int			max_iscsi_conn;
	atomic_t		iscsi_conn;

	/* per connection parameters */
	int			num_iscsi_tasks;
	int			num_ccells;
	int			task_array_size;
	int			r2tq_size;
	int			hq_size;
	int			num_cqs;

	struct cnic_ctx		*ctx_arr;
	int			ctx_blks;
	int			ctx_blk_size;
	int			cids_per_blk;

	u32			chip_id;
	int			func;
	u32			shmem_base;

	u32			uio_dev;
	struct uio_info		*cnic_uinfo;

	struct cnic_ops		*cnic_ops;
	int			(*start_hw)(struct cnic_dev *);
	void			(*stop_hw)(struct cnic_dev *);
	void			(*setup_pgtbl)(struct cnic_dev *,
					       struct cnic_dma *);
	int			(*alloc_resc)(struct cnic_dev *);
	void			(*free_resc)(struct cnic_dev *);
	int			(*start_cm)(struct cnic_dev *);
	void			(*stop_cm)(struct cnic_dev *);
	void			(*enable_int)(struct cnic_dev *);
	void			(*disable_int_sync)(struct cnic_dev *);
	void			(*ack_int)(struct cnic_dev *);
	void			(*close_conn)(struct cnic_sock *, u32 opcode);
	u16			(*next_idx)(u16);
	u16			(*hw_idx)(u16);
};

struct bnx2x_bd_chain_next {
	u32	addr_lo;
	u32	addr_hi;
	u8	reserved[8];
};

#define ISCSI_RAMROD_CMD_ID_UPDATE_CONN		(ISCSI_KCQE_OPCODE_UPDATE_CONN)
#define ISCSI_RAMROD_CMD_ID_INIT		(ISCSI_KCQE_OPCODE_INIT)

#define CDU_REGION_NUMBER_XCM_AG 2
#define CDU_REGION_NUMBER_UCM_AG 4

#endif
Commit	Line	Data
a4636960 MC	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
681dbd71	179	#define ULP_F_CALL_PENDING 2
a4636960 MC	180	struct cnic_ulp_ops *ulp_ops[MAX_CNIC_ULP_TYPE];
	181
	182	/* protected by ulp_lock */
	183	u32 cnic_local_flags;
	184	#define CNIC_LCL_FL_KWQ_INIT 0x00000001
	185
	186	struct cnic_dev *dev;
	187
	188	struct cnic_eth_dev *ethdev;
	189
	190	void *l2_ring;
	191	dma_addr_t l2_ring_map;
	192	int l2_ring_size;
	193	int l2_rx_ring_size;
	194
	195	void *l2_buf;
	196	dma_addr_t l2_buf_map;
	197	int l2_buf_size;
	198	int l2_single_buf_size;
	199
	200	u16 *rx_cons_ptr;
	201	u16 *tx_cons_ptr;
	202	u16 rx_cons;
	203	u16 tx_cons;
	204
	205	u32 kwq_cid_addr;
	206	u32 kcq_cid_addr;
	207
	208	struct cnic_dma kwq_info;
	209	struct kwqe **kwq;
	210
	211	struct cnic_dma kwq_16_data_info;
	212
	213	u16 max_kwq_idx;
	214
	215	u16 kwq_prod_idx;
	216	u32 kwq_io_addr;
	217
	218	u16 *kwq_con_idx_ptr;
	219	u16 kwq_con_idx;
	220
	221	struct cnic_dma kcq_info;
	222	struct kcqe **kcq;
	223
	224	u16 kcq_prod_idx;
	225	u32 kcq_io_addr;
	226
	227	void *status_blk;
	228	struct status_block_msix *bnx2_status_blk;
	229	struct host_status_block *bnx2x_status_blk;
	230
	231	u32 status_blk_num;
	232	u32 int_num;
	233	u32 last_status_idx;
	234	struct tasklet_struct cnic_irq_task;
	235
	236	struct kcqe *completed_kcq[MAX_COMPLETED_KCQE];
	237
	238	struct cnic_sock *csk_tbl;
	239	struct cnic_id_tbl csk_port_tbl;
	240
	241	struct cnic_dma conn_buf_info;
	242	struct cnic_dma gbl_buf_info;
	243
244	struct cnic_iscsi *iscsi_tbl;
245	struct cnic_context *ctx_tbl;
246	struct cnic_id_tbl cid_tbl;
247	int max_iscsi_conn;
248	atomic_t iscsi_conn;
249
250	/* per connection parameters */
251	int num_iscsi_tasks;
252	int num_ccells;
253	int task_array_size;
254	int r2tq_size;
255	int hq_size;
256	int num_cqs;
257
258	struct cnic_ctx *ctx_arr;
259	int ctx_blks;
260	int ctx_blk_size;
261	int cids_per_blk;
262
263	u32 chip_id;
264	int func;
265	u32 shmem_base;
266
267	u32 uio_dev;
268	struct uio_info *cnic_uinfo;
269
270	struct cnic_ops *cnic_ops;
271	int (start_hw)(struct cnic_dev );
272	void (stop_hw)(struct cnic_dev );
273	void (setup_pgtbl)(struct cnic_dev ,
274	struct cnic_dma *);
275	int (alloc_resc)(struct cnic_dev );
276	void (free_resc)(struct cnic_dev );
277	int (start_cm)(struct cnic_dev );
278	void (stop_cm)(struct cnic_dev );
279	void (enable_int)(struct cnic_dev );
280	void (disable_int_sync)(struct cnic_dev );
281	void (ack_int)(struct cnic_dev );
282	void (close_conn)(struct cnic_sock , u32 opcode);
283	u16 (*next_idx)(u16);
284	u16 (*hw_idx)(u16);
285	};
286
287	struct bnx2x_bd_chain_next {
288	u32 addr_lo;
289	u32 addr_hi;
290	u8 reserved[8];
291	};
292
293	#define ISCSI_RAMROD_CMD_ID_UPDATE_CONN (ISCSI_KCQE_OPCODE_UPDATE_CONN)
294	#define ISCSI_RAMROD_CMD_ID_INIT (ISCSI_KCQE_OPCODE_INIT)
295
296	#define CDU_REGION_NUMBER_XCM_AG 2
297	#define CDU_REGION_NUMBER_UCM_AG 4
298
299	#endif
300