aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/sk98lin/h/skdrv2nd.h
blob: 542cec57f86a30b129adc3f62b710670c2424972 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
/******************************************************************************
 *
 * Name:	skdrv2nd.h
 * Project:	GEnesis, PCI Gigabit Ethernet Adapter
 * Version:	$Revision: 1.10 $
 * Date:	$Date: 2003/12/11 16:04:45 $
 * Purpose:	Second header file for driver and all other modules
 *
 ******************************************************************************/

/******************************************************************************
 *
 *	(C)Copyright 1998-2002 SysKonnect GmbH.
 *	(C)Copyright 2002-2003 Marvell.
 *
 *	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; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	The information in this file is provided "AS IS" without warranty.
 *
 ******************************************************************************/

/******************************************************************************
 *
 * Description:
 *
 * This is the second include file of the driver, which includes all other
 * neccessary files and defines all structures and constants used by the
 * driver and the common modules.
 *
 * Include File Hierarchy:
 *
 *	see skge.c
 *
 ******************************************************************************/

#ifndef __INC_SKDRV2ND_H
#define __INC_SKDRV2ND_H

#include "h/skqueue.h"
#include "h/skgehwt.h"
#include "h/sktimer.h"
#include "h/ski2c.h"
#include "h/skgepnmi.h"
#include "h/skvpd.h"
#include "h/skgehw.h"
#include "h/skgeinit.h"
#include "h/skaddr.h"
#include "h/skgesirq.h"
#include "h/skcsum.h"
#include "h/skrlmt.h"
#include "h/skgedrv.h"


extern SK_MBUF		*SkDrvAllocRlmtMbuf(SK_AC*, SK_IOC, unsigned);
extern void		SkDrvFreeRlmtMbuf(SK_AC*, SK_IOC, SK_MBUF*);
extern SK_U64		SkOsGetTime(SK_AC*);
extern int		SkPciReadCfgDWord(SK_AC*, int, SK_U32*);
extern int		SkPciReadCfgWord(SK_AC*, int, SK_U16*);
extern int		SkPciReadCfgByte(SK_AC*, int, SK_U8*);
extern int		SkPciWriteCfgDWord(SK_AC*, int, SK_U32);
extern int		SkPciWriteCfgWord(SK_AC*, int, SK_U16);
extern int		SkPciWriteCfgByte(SK_AC*, int, SK_U8);
extern int		SkDrvEvent(SK_AC*, SK_IOC IoC, SK_U32, SK_EVPARA);

#ifdef SK_DIAG_SUPPORT
extern int		SkDrvEnterDiagMode(SK_AC *pAc);
extern int		SkDrvLeaveDiagMode(SK_AC *pAc);
#endif

struct s_DrvRlmtMbuf {
	SK_MBUF		*pNext;		/* Pointer to next RLMT Mbuf. */
	SK_U8		*pData;		/* Data buffer (virtually contig.). */
	unsigned	Size;		/* Data buffer size. */
	unsigned	Length;		/* Length of packet (<= Size). */
	SK_U32		PortIdx;	/* Receiving/transmitting port. */
#ifdef SK_RLMT_MBUF_PRIVATE
	SK_RLMT_MBUF	Rlmt;		/* Private part for RLMT. */
#endif  /* SK_RLMT_MBUF_PRIVATE */
	struct sk_buff	*pOs;		/* Pointer to message block */
};


/*
 * Time macros
 */
#if SK_TICKS_PER_SEC == 100
#define SK_PNMI_HUNDREDS_SEC(t)	(t)
#else
#define SK_PNMI_HUNDREDS_SEC(t)	((((unsigned long)t) * 100) / \
										(SK_TICKS_PER_SEC))
#endif

/*
 * New SkOsGetTime
 */
#define SkOsGetTimeCurrent(pAC, pUsec) {\
	struct timeval t;\
	do_gettimeofday(&t);\
	*pUsec = ((((t.tv_sec) * 1000000L)+t.tv_usec)/10000);\
}


/*
 * ioctl definitions
 */
#define		SK_IOCTL_BASE		(SIOCDEVPRIVATE)
#define		SK_IOCTL_GETMIB		(SK_IOCTL_BASE + 0)
#define		SK_IOCTL_SETMIB		(SK_IOCTL_BASE + 1)
#define		SK_IOCTL_PRESETMIB	(SK_IOCTL_BASE + 2)
#define		SK_IOCTL_GEN		(SK_IOCTL_BASE + 3)
#define		SK_IOCTL_DIAG		(SK_IOCTL_BASE + 4)

typedef struct s_IOCTL	SK_GE_IOCTL;

struct s_IOCTL {
	char __user *	pData;
	unsigned int	Len;
};


/*
 * define sizes of descriptor rings in bytes
 */

#define		TX_RING_SIZE	(8*1024)
#define		RX_RING_SIZE	(24*1024)

/*
 * Buffer size for ethernet packets
 */
#define	ETH_BUF_SIZE	1540
#define	ETH_MAX_MTU	1514
#define ETH_MIN_MTU	60
#define ETH_MULTICAST_BIT	0x01
#define SK_JUMBO_MTU	9000

/*
 * transmit priority selects the queue: LOW=asynchron, HIGH=synchron
 */
#define TX_PRIO_LOW	0
#define TX_PRIO_HIGH	1

/*
 * alignment of rx/tx descriptors
 */
#define DESCR_ALIGN	64

/*
 * definitions for pnmi. TODO
 */
#define SK_DRIVER_RESET(pAC, IoC)	0
#define SK_DRIVER_SENDEVENT(pAC, IoC)	0
#define SK_DRIVER_SELFTEST(pAC, IoC)	0
/* For get mtu you must add an own function */
#define SK_DRIVER_GET_MTU(pAc,IoC,i)	0
#define SK_DRIVER_SET_MTU(pAc,IoC,i,v)	0
#define SK_DRIVER_PRESET_MTU(pAc,IoC,i,v)	0

/*
** Interim definition of SK_DRV_TIMER placed in this file until 
** common modules have boon finallized
*/
#define SK_DRV_TIMER			11 
#define	SK_DRV_MODERATION_TIMER		1
#define SK_DRV_MODERATION_TIMER_LENGTH  1000000  /* 1 second */
#define SK_DRV_RX_CLEANUP_TIMER		2
#define SK_DRV_RX_CLEANUP_TIMER_LENGTH	1000000	 /* 100 millisecs */

/*
** Definitions regarding transmitting frames 
** any calculating any checksum.
*/
#define C_LEN_ETHERMAC_HEADER_DEST_ADDR 6
#define C_LEN_ETHERMAC_HEADER_SRC_ADDR  6
#define C_LEN_ETHERMAC_HEADER_LENTYPE   2
#define C_LEN_ETHERMAC_HEADER           ( (C_LEN_ETHERMAC_HEADER_DEST_ADDR) + \
                                          (C_LEN_ETHERMAC_HEADER_SRC_ADDR)  + \
                                          (C_LEN_ETHERMAC_HEADER_LENTYPE) )

#define C_LEN_ETHERMTU_MINSIZE          46
#define C_LEN_ETHERMTU_MAXSIZE_STD      1500
#define C_LEN_ETHERMTU_MAXSIZE_JUMBO    9000

#define C_LEN_ETHERNET_MINSIZE          ( (C_LEN_ETHERMAC_HEADER) + \
                                          (C_LEN_ETHERMTU_MINSIZE) )

#define C_OFFSET_IPHEADER               C_LEN_ETHERMAC_HEADER
#define C_OFFSET_IPHEADER_IPPROTO       9
#define C_OFFSET_TCPHEADER_TCPCS        16
#define C_OFFSET_UDPHEADER_UDPCS        6

#define C_OFFSET_IPPROTO                ( (C_LEN_ETHERMAC_HEADER) + \
                                          (C_OFFSET_IPHEADER_IPPROTO) )

#define C_PROTO_ID_UDP                  17       /* refer to RFC 790 or Stevens'   */
#define C_PROTO_ID_TCP                  6        /* TCP/IP illustrated for details */

/* TX and RX descriptors *****************************************************/

typedef struct s_RxD RXD; /* the receive descriptor */

struct s_RxD {
	volatile SK_U32	RBControl;	/* Receive Buffer Control */
	SK_U32		VNextRxd;	/* Next receive descriptor,low dword */
	SK_U32		VDataLow;	/* Receive buffer Addr, low dword */
	SK_U32		VDataHigh;	/* Receive buffer Addr, high dword */
	SK_U32		FrameStat;	/* Receive Frame Status word */
	SK_U32		TimeStamp;	/* Time stamp from XMAC */
	SK_U32		TcpSums;	/* TCP Sum 2 / TCP Sum 1 */
	SK_U32		TcpSumStarts;	/* TCP Sum Start 2 / TCP Sum Start 1 */
	RXD		*pNextRxd;	/* Pointer to next Rxd */
	struct sk_buff	*pMBuf;		/* Pointer to Linux' socket buffer */
};

typedef struct s_TxD TXD; /* the transmit descriptor */

struct s_TxD {
	volatile SK_U32	TBControl;	/* Transmit Buffer Control */
	SK_U32		VNextTxd;	/* Next transmit descriptor,low dword */
	SK_U32		VDataLow;	/* Transmit Buffer Addr, low dword */
	SK_U32		VDataHigh;	/* Transmit Buffer Addr, high dword */
	SK_U32		FrameStat;	/* Transmit Frame Status Word */
	SK_U32		TcpSumOfs;	/* Reserved / TCP Sum Offset */
	SK_U16		TcpSumSt;	/* TCP Sum Start */
	SK_U16		TcpSumWr;	/* TCP Sum Write */
	SK_U32		TcpReserved;	/* not used */
	TXD		*pNextTxd;	/* Pointer to next Txd */
	struct sk_buff	*pMBuf;		/* Pointer to Linux' socket buffer */
};

/* Used interrupt bits in the interrupts source register *********************/

#define DRIVER_IRQS	((IS_IRQ_SW)   | \
			(IS_R1_F)      |(IS_R2_F)  | \
			(IS_XS1_F)     |(IS_XA1_F) | \
			(IS_XS2_F)     |(IS_XA2_F))

#define SPECIAL_IRQS	((IS_HW_ERR)   |(IS_I2C_READY)  | \
			(IS_EXT_REG)   |(IS_TIMINT)     | \
			(IS_PA_TO_RX1) |(IS_PA_TO_RX2)  | \
			(IS_PA_TO_TX1) |(IS_PA_TO_TX2)  | \
			(IS_MAC1)      |(IS_LNK_SYNC_M1)| \
			(IS_MAC2)      |(IS_LNK_SYNC_M2)| \
			(IS_R1_C)      |(IS_R2_C)       | \
			(IS_XS1_C)     |(IS_XA1_C)      | \
			(IS_XS2_C)     |(IS_XA2_C))

#define IRQ_MASK	((IS_IRQ_SW)   | \
			(IS_R1_B)      |(IS_R1_F)     |(IS_R2_B) |(IS_R2_F) | \
			(IS_XS1_B)     |(IS_XS1_F)    |(IS_XA1_B)|(IS_XA1_F)| \
			(IS_XS2_B)     |(IS_XS2_F)    |(IS_XA2_B)|(IS_XA2_F)| \
			(IS_HW_ERR)    |(IS_I2C_READY)| \
			(IS_EXT_REG)   |(IS_TIMINT)   | \
			(IS_PA_TO_RX1) |(IS_PA_TO_RX2)| \
			(IS_PA_TO_TX1) |(IS_PA_TO_TX2)| \
			(IS_MAC1)      |(IS_MAC2)     | \
			(IS_R1_C)      |(IS_R2_C)     | \
			(IS_XS1_C)     |(IS_XA1_C)    | \
			(IS_XS2_C)     |(IS_XA2_C))

#define IRQ_HWE_MASK	(IS_ERR_MSK) /* enable all HW irqs */

typedef struct s_DevNet DEV_NET;

struct s_DevNet {
	int             PortNr;
	int             NetNr;
	int             Mtu;
	int             Up;
	SK_AC   *pAC;
};  

typedef struct s_TxPort		TX_PORT;

struct s_TxPort {
	/* the transmit descriptor rings */
	caddr_t		pTxDescrRing;	/* descriptor area memory */
	SK_U64		VTxDescrRing;	/* descr. area bus virt. addr. */
	TXD		*pTxdRingHead;	/* Head of Tx rings */
	TXD		*pTxdRingTail;	/* Tail of Tx rings */
	TXD		*pTxdRingPrev;	/* descriptor sent previously */
	int		TxdRingFree;	/* # of free entrys */
	spinlock_t	TxDesRingLock;	/* serialize descriptor accesses */
	SK_IOC		HwAddr;		/* bmu registers address */
	int		PortIndex;	/* index number of port (0 or 1) */
};

typedef struct s_RxPort		RX_PORT;

struct s_RxPort {
	/* the receive descriptor rings */
	caddr_t		pRxDescrRing;	/* descriptor area memory */
	SK_U64		VRxDescrRing;   /* descr. area bus virt. addr. */
	RXD		*pRxdRingHead;	/* Head of Rx rings */
	RXD		*pRxdRingTail;	/* Tail of Rx rings */
	RXD		*pRxdRingPrev;	/* descriptor given to BMU previously */
	int		RxdRingFree;	/* # of free entrys */
	spinlock_t	RxDesRingLock;	/* serialize descriptor accesses */
	int		RxFillLimit;	/* limit for buffers in ring */
	SK_IOC		HwAddr;		/* bmu registers address */
	int		PortIndex;	/* index number of port (0 or 1) */
};

/* Definitions needed for interrupt moderation *******************************/

#define IRQ_EOF_AS_TX     ((IS_XA1_F)     | (IS_XA2_F))
#define IRQ_EOF_SY_TX     ((IS_XS1_F)     | (IS_XS2_F))
#define IRQ_MASK_TX_ONLY  ((IRQ_EOF_AS_TX)| (IRQ_EOF_SY_TX))
#define IRQ_MASK_RX_ONLY  ((IS_R1_F)      | (IS_R2_F))
#define IRQ_MASK_SP_ONLY  (SPECIAL_IRQS)
#define IRQ_MASK_TX_RX    ((IRQ_MASK_TX_ONLY)| (IRQ_MASK_RX_ONLY))
#define IRQ_MASK_SP_RX    ((SPECIAL_IRQS)    | (IRQ_MASK_RX_ONLY))
#define IRQ_MASK_SP_TX    ((SPECIAL_IRQS)    | (IRQ_MASK_TX_ONLY))
#define IRQ_MASK_RX_TX_SP ((SPECIAL_IRQS)    | (IRQ_MASK_TX_RX))

#define C_INT_MOD_NONE                 1
#define C_INT_MOD_STATIC               2
#define C_INT_MOD_DYNAMIC              4

#define C_CLK_FREQ_GENESIS      53215000 /* shorter: 53.125 MHz  */
#define C_CLK_FREQ_YUKON        78215000 /* shorter: 78.125 MHz  */

#define C_INTS_PER_SEC_DEFAULT      2000 
#define C_INT_MOD_ENABLE_PERCENTAGE   50 /* if higher 50% enable */
#define C_INT_MOD_DISABLE_PERCENTAGE  50 /* if lower 50% disable */
#define C_INT_MOD_IPS_LOWER_RANGE     30
#define C_INT_MOD_IPS_UPPER_RANGE     40000


typedef struct s_DynIrqModInfo  DIM_INFO;
struct s_DynIrqModInfo {
	unsigned long   PrevTimeVal;
	unsigned int    PrevSysLoad;
	unsigned int    PrevUsedTime;
	unsigned int    PrevTotalTime;
	int             PrevUsedDescrRatio;
	int             NbrProcessedDescr;
        SK_U64          PrevPort0RxIntrCts;
        SK_U64          PrevPort1RxIntrCts;
        SK_U64          PrevPort0TxIntrCts;
        SK_U64          PrevPort1TxIntrCts;
	SK_BOOL         ModJustEnabled;     /* Moderation just enabled yes/no */

	int             MaxModIntsPerSec;            /* Moderation Threshold */
	int             MaxModIntsPerSecUpperLimit;  /* Upper limit for DIM  */
	int             MaxModIntsPerSecLowerLimit;  /* Lower limit for DIM  */

	long            MaskIrqModeration;   /* ModIrqType (eg. 'TxRx')      */
	SK_BOOL         DisplayStats;        /* Stats yes/no                 */
	SK_BOOL         AutoSizing;          /* Resize DIM-timer on/off      */
	int             IntModTypeSelect;    /* EnableIntMod (eg. 'dynamic') */

	SK_TIMER        ModTimer; /* just some timer */
};

typedef struct s_PerStrm	PER_STRM;

#define SK_ALLOC_IRQ	0x00000001

#ifdef SK_DIAG_SUPPORT
#define	DIAG_ACTIVE		1
#define	DIAG_NOTACTIVE		0
#endif

/****************************************************************************
 * Per board structure / Adapter Context structure:
 *	Allocated within attach(9e) and freed within detach(9e).
 *	Contains all 'per device' necessary handles, flags, locks etc.:
 */
struct s_AC  {
	SK_GEINIT	GIni;		/* GE init struct */
	SK_PNMI		Pnmi;		/* PNMI data struct */
	SK_VPD		vpd;		/* vpd data struct */
	SK_QUEUE	Event;		/* Event queue */
	SK_HWT		Hwt;		/* Hardware Timer control struct */
	SK_TIMCTRL	Tim;		/* Software Timer control struct */
	SK_I2C		I2c;		/* I2C relevant data structure */
	SK_ADDR		Addr;		/* for Address module */
	SK_CSUM		Csum;		/* for checksum module */
	SK_RLMT		Rlmt;		/* for rlmt module */
	spinlock_t	SlowPathLock;	/* Normal IRQ lock */
	struct timer_list BlinkTimer;	/* for LED blinking */
	int		LedsOn;
	SK_PNMI_STRUCT_DATA PnmiStruct;	/* structure to get all Pnmi-Data */
	int			RlmtMode;	/* link check mode to set */
	int			RlmtNets;	/* Number of nets */
	
	SK_IOC		IoBase;		/* register set of adapter */
	int		BoardLevel;	/* level of active hw init (0-2) */
	char		DeviceStr[80];	/* adapter string from vpd */
	SK_U32		AllocFlag;	/* flag allocation of resources */
	struct pci_dev	*PciDev;	/* for access to pci config space */
	SK_U32		PciDevId;	/* pci device id */
	struct SK_NET_DEVICE	*dev[2];	/* pointer to device struct */
	char		Name[30];	/* driver name */

	int		RxBufSize;	/* length of receive buffers */
        struct net_device_stats stats;	/* linux 'netstat -i' statistics */
	int		Index;		/* internal board index number */

	/* adapter RAM sizes for queues of active port */
	int		RxQueueSize;	/* memory used for receive queue */
	int		TxSQueueSize;	/* memory used for sync. tx queue */
	int		TxAQueueSize;	/* memory used for async. tx queue */

	int		PromiscCount;	/* promiscuous mode counter  */
	int		AllMultiCount;  /* allmulticast mode counter */
	int		MulticCount;	/* number of different MC    */
					/*  addresses for this board */
					/*  (may be more than HW can)*/

	int		HWRevision;	/* Hardware revision */
	int		ActivePort;	/* the active XMAC port */
	int		MaxPorts;		/* number of activated ports */
	int		TxDescrPerRing;	/* # of descriptors per tx ring */
	int		RxDescrPerRing;	/* # of descriptors per rx ring */

	caddr_t		pDescrMem;	/* Pointer to the descriptor area */
	dma_addr_t	pDescrMemDMA;	/* PCI DMA address of area */

	/* the port structures with descriptor rings */
	TX_PORT		TxPort[SK_MAX_MACS][2];
	RX_PORT		RxPort[SK_MAX_MACS];

	unsigned int	CsOfs1;		/* for checksum calculation */
	unsigned int	CsOfs2;		/* for checksum calculation */
	SK_U32		CsOfs;		/* for checksum calculation */

	SK_BOOL		CheckQueue;	/* check event queue soon */
	SK_TIMER        DrvCleanupTimer;/* to check for pending descriptors */
	DIM_INFO        DynIrqModInfo;  /* all data related to DIM */

	/* Only for tests */
	int		PortUp;
	int		PortDown;
	int		ChipsetType;	/*  Chipset family type 
					 *  0 == Genesis family support
					 *  1 == Yukon family support
					 */
#ifdef SK_DIAG_SUPPORT
	SK_U32		DiagModeActive;		/* is diag active?	*/
	SK_BOOL		DiagFlowCtrl;		/* for control purposes	*/
	SK_PNMI_STRUCT_DATA PnmiBackup;		/* backup structure for all Pnmi-Data */
	SK_BOOL         WasIfUp[SK_MAX_MACS];   /* for OpenClose while 
						 * DIAG is busy with NIC 
						 */
#endif

};


#endif /* __INC_SKDRV2ND_H */