xref: /titanic_50/usr/src/uts/common/io/sfe/sfe_util.h (revision ed31198c686205a26320612d2a5dd7b26ae63a15)
1 /*
2  *  sfe_util.h: header to support the gem layer used by Masa Murayama
3  *
4  * Copyright (c) 2002-2008 Masayuki Murayama.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are met:
8  *
9  * 1. Redistributions of source code must retain the above copyright notice,
10  *    this list of conditions and the following disclaimer.
11  *
12  * 2. Redistributions in binary form must reproduce the above copyright notice,
13  *    this list of conditions and the following disclaimer in the documentation
14  *    and/or other materials provided with the distribution.
15  *
16  * 3. Neither the name of the author nor the names of its contributors may be
17  *    used to endorse or promote products derived from this software without
18  *    specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
31  * DAMAGE.
32  */
33 
34 #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* sfe device driver */
35 
36 #ifndef _SFE_UTIL_H_
37 #define	_SFE_UTIL_H_
38 #include <sys/mac.h>
39 #include <sys/mac_ether.h>
40 
41 /*
42  * Useful macros and typedefs
43  */
44 
45 #define	GEM_NAME_LEN	32
46 
47 #define	GEM_TX_TIMEOUT		(drv_usectohz(5*1000000))
48 #define	GEM_TX_TIMEOUT_INTERVAL	(drv_usectohz(1*1000000))
49 #define	GEM_LINK_WATCH_INTERVAL	(drv_usectohz(1*1000000))	/* 1 sec */
50 
51 /* general return code */
52 #define	GEM_SUCCESS	0
53 #define	GEM_FAILURE	(-1)
54 
55 /* return code of gem_tx_done */
56 #define	INTR_RESTART_TX	0x80000000
57 
58 typedef	int32_t		seqnum_t;
59 
60 /*
61  * I/O instructions
62  */
63 #define	OUTB(dp, p, v)	\
64 	ddi_put8((dp)->regs_handle, \
65 		(void *)((caddr_t)((dp)->base_addr) + (p)), v)
66 #define	OUTW(dp, p, v)	\
67 	ddi_put16((dp)->regs_handle, \
68 		(void *)((caddr_t)((dp)->base_addr) + (p)), v)
69 #define	OUTL(dp, p, v)	\
70 	ddi_put32((dp)->regs_handle, \
71 		(void *)((caddr_t)((dp)->base_addr) + (p)), v)
72 #define	INB(dp, p)	\
73 	ddi_get8((dp)->regs_handle, \
74 		(void *)(((caddr_t)(dp)->base_addr) + (p)))
75 #define	INW(dp, p)	\
76 	ddi_get16((dp)->regs_handle, \
77 		(void *)(((caddr_t)(dp)->base_addr) + (p)))
78 #define	INL(dp, p)	\
79 	ddi_get32((dp)->regs_handle, \
80 		(void *)(((caddr_t)(dp)->base_addr) + (p)))
81 
82 struct gem_stats {
83 	uint32_t	intr;
84 
85 	uint32_t	crc;
86 	uint32_t	errrcv;
87 	uint32_t	overflow;
88 	uint32_t	frame;
89 	uint32_t	missed;
90 	uint32_t	runt;
91 	uint32_t	frame_too_long;
92 	uint32_t	norcvbuf;
93 	uint32_t	sqe;
94 
95 	uint32_t	collisions;
96 	uint32_t	first_coll;
97 	uint32_t	multi_coll;
98 	uint32_t	excoll;
99 	uint32_t	xmit_internal_err;
100 	uint32_t	nocarrier;
101 	uint32_t	defer;
102 	uint32_t	errxmt;
103 	uint32_t	underflow;
104 	uint32_t	xmtlatecoll;
105 	uint32_t	noxmtbuf;
106 	uint32_t	jabber;
107 
108 	uint64_t	rbytes;
109 	uint64_t	obytes;
110 	uint64_t	rpackets;
111 	uint64_t	opackets;
112 	uint32_t	rbcast;
113 	uint32_t	obcast;
114 	uint32_t	rmcast;
115 	uint32_t	omcast;
116 	uint32_t	rcv_internal_err;
117 };
118 #define	GEM_MAXTXSEGS		4
119 #define	GEM_MAXRXSEGS		1
120 
121 #define	GEM_MAXTXFRAGS		8
122 #define	GEM_MAXRXFRAGS		4
123 /* TX buffer management */
124 struct txbuf {
125 	struct txbuf		*txb_next;
126 
127 	/* pointer to original mblk */
128 	mblk_t			*txb_mp;
129 
130 	/* dma mapping for current packet */
131 	ddi_dma_cookie_t	txb_dmacookie[GEM_MAXTXFRAGS];
132 	uint_t			txb_nfrags;
133 
134 	/* bounce buffer management */
135 	ddi_dma_handle_t	txb_bdh;
136 	ddi_acc_handle_t	txb_bah;
137 	caddr_t			txb_buf;	/* vaddr of bounce buffer */
138 	uint64_t		txb_buf_dma;	/* paddr of bounce buffer */
139 
140 	/* timeout management */
141 	clock_t			txb_stime;
142 
143 	/* Hardware descriptor info */
144 	seqnum_t		txb_desc;
145 	int			txb_ndescs;
146 	uint64_t		txb_flag;
147 };
148 
149 
150 /* RX buffer management */
151 struct rxbuf {
152 	/* Hardware independent section */
153 	struct rxbuf		*rxb_next;
154 	struct gem_dev		*rxb_devp;
155 
156 	/* dma mapping management */
157 	ddi_dma_handle_t	rxb_dh;
158 	caddr_t			rxb_buf;
159 	size_t			rxb_buf_len;
160 	ddi_dma_cookie_t	rxb_dmacookie[GEM_MAXRXFRAGS];
161 	uint_t			rxb_nfrags;
162 
163 	/* bounce buffer management */
164 	ddi_acc_handle_t	rxb_bah;
165 };
166 
167 struct mcast_addr {
168 	struct ether_addr	addr;
169 	uint32_t		hash;
170 };
171 
172 #define	GEM_MAXMC		64
173 #define	GEM_MCALLOC		(sizeof (struct mcast_addr) * GEM_MAXMC)
174 
175 #define	SUB(x, y)		((seqnum_t)((x) - (y)))
176 #define	SLOT(seqnum, size)	(((unsigned int)(seqnum)) & ((size)-1))
177 
178 /*
179  * mac soft state
180  */
181 struct gem_dev {
182 	dev_info_t		*dip;
183 	mac_handle_t		mh;
184 	char			name[GEM_NAME_LEN];
185 	void			*base_addr;
186 	ddi_acc_handle_t	regs_handle;
187 	ddi_iblock_cookie_t	iblock_cookie;
188 
189 	/* MAC address information */
190 	struct ether_addr	cur_addr;
191 	struct ether_addr	dev_addr;
192 
193 	/* Descriptor rings, io area */
194 	ddi_dma_handle_t	desc_dma_handle;
195 	ddi_acc_handle_t	desc_acc_handle;
196 	caddr_t			rx_ring;
197 	caddr_t			tx_ring;
198 	caddr_t			io_area;
199 	/* caddr_t			rx_buf; */
200 
201 	uint64_t		rx_ring_dma;
202 	uint64_t		tx_ring_dma;
203 	uint64_t		io_area_dma;
204 
205 	/* RX slot ring management */
206 	kmutex_t		intrlock;
207 	boolean_t		intr_busy;
208 	seqnum_t		rx_active_head;
209 	seqnum_t		rx_active_tail;
210 	mac_resource_handle_t	mac_rx_ring_ha;
211 	/* Rx buffer management */
212 	struct rxbuf		*rx_buf_head;
213 	struct rxbuf		*rx_buf_tail;
214 	struct rxbuf		*rx_buf_freelist;
215 	int			rx_buf_allocated;
216 	int			rx_buf_freecnt;
217 	int			rx_buf_len;
218 
219 	/* TX descriptor ring management */
220 	seqnum_t		tx_desc_head;
221 	seqnum_t		tx_desc_tail;
222 	seqnum_t		tx_desc_intr;
223 
224 	/* TX buffur ring management */
225 	kmutex_t		xmitlock;
226 	kcondvar_t		tx_drain_cv;
227 	seqnum_t		tx_active_head;
228 	seqnum_t		tx_active_tail;
229 	seqnum_t		tx_softq_head;
230 	seqnum_t		tx_softq_tail;
231 	seqnum_t		tx_free_head;
232 	seqnum_t		tx_free_tail;
233 	int			tx_max_packets;
234 
235 	/* TX buffer resource management */
236 	struct txbuf		*tx_buf;
237 	seqnum_t		tx_slots_base;
238 
239 	/* TX state management */
240 	int			tx_busy;
241 	int			tx_reclaim_busy;
242 	clock_t			tx_blocked;
243 
244 	/* NIC state */
245 	volatile boolean_t	mac_active;	/* tx and rx are running */
246 	volatile int		nic_state;	/* logical driver state */
247 #define	NIC_STATE_STOPPED	0
248 #define	NIC_STATE_INITIALIZED	1
249 #define	NIC_STATE_ONLINE	2
250 	volatile boolean_t	mac_suspended;
251 
252 	/* robustness: timer and watchdog */
253 	volatile timeout_id_t	timeout_id;
254 
255 
256 	/* MII management */
257 	boolean_t		anadv_autoneg:1;
258 	boolean_t		anadv_1000fdx:1;
259 	boolean_t		anadv_1000hdx:1;
260 	boolean_t		anadv_100t4:1;
261 	boolean_t		anadv_100fdx:1;
262 	boolean_t		anadv_100hdx:1;
263 	boolean_t		anadv_10fdx:1;
264 	boolean_t		anadv_10hdx:1;
265 	boolean_t		anadv_flow_control:2;
266 	boolean_t		mii_advert_ro:1;
267 
268 	boolean_t		full_duplex:1;
269 	int			speed:3;
270 #define		GEM_SPD_10	0
271 #define		GEM_SPD_100	1
272 #define		GEM_SPD_1000	2
273 #define		GEM_SPD_NUM	3
274 	unsigned int		flow_control:2;
275 #define		FLOW_CONTROL_NONE	0
276 #define		FLOW_CONTROL_SYMMETRIC	1
277 #define		FLOW_CONTROL_TX_PAUSE	2
278 #define		FLOW_CONTROL_RX_PAUSE	3
279 
280 	boolean_t		mii_supress_msg:1;
281 
282 	uint32_t		mii_phy_id;
283 	uint16_t		mii_status;
284 	uint16_t		mii_advert;
285 	uint16_t		mii_lpable;
286 	uint16_t		mii_exp;
287 	uint16_t		mii_ctl1000;
288 	uint16_t		mii_stat1000;
289 	uint16_t		mii_xstatus;
290 	int8_t			mii_phy_addr;	/* must be signed */
291 
292 	uint8_t			mii_state;
293 #define		MII_STATE_UNKNOWN		0
294 #define		MII_STATE_RESETTING		1
295 #define		MII_STATE_AUTONEGOTIATING	2
296 #define		MII_STATE_AN_DONE		3
297 #define		MII_STATE_MEDIA_SETUP		4
298 #define		MII_STATE_LINKUP		5
299 #define		MII_STATE_LINKDOWN		6
300 
301 	clock_t			mii_last_check;	/* in tick */
302 	clock_t			mii_timer;	/* in tick */
303 #define		MII_RESET_TIMEOUT	drv_usectohz(1000*1000)
304 #define		MII_AN_TIMEOUT		drv_usectohz(5000*1000)
305 #define		MII_LINKDOWN_TIMEOUT	drv_usectohz(10000*1000)
306 	clock_t			mii_interval;	/* in tick */
307 	clock_t			linkup_delay;	/* in tick */
308 
309 	volatile timeout_id_t	link_watcher_id;
310 
311 	ddi_softintr_t		soft_id;
312 
313 	/* multcast list management */
314 	int16_t			mc_count;
315 	int16_t			mc_count_req;
316 	struct mcast_addr	*mc_list;
317 	uint32_t		rxmode;
318 #define		RXMODE_PROMISC		0x01
319 #define		RXMODE_ALLMULTI_REQ	0x02
320 #define		RXMODE_MULTI_OVF	0x04
321 #define		RXMODE_ENABLE		0x08
322 #define		RXMODE_ALLMULTI		(RXMODE_ALLMULTI_REQ | RXMODE_MULTI_OVF)
323 #define		RXMODE_BITS	\
324 			"\020"	\
325 			"\004ENABLE"	\
326 			"\003MULTI_OVF"	\
327 			"\002ALLMULTI_REQ"	\
328 			"\001PROMISC"
329 
330 	/* statistcs */
331 	struct gem_stats		stats;
332 
333 	/* pointer to local structure */
334 	void			*private;
335 	int			priv_size;
336 
337 	/* polling mode */
338 	int			poll_pkt_delay;	/* in number of packets */
339 
340 	/* descriptor area */
341 	int			tx_desc_size;
342 	int			rx_desc_size;
343 
344 	/* configuration */
345 	struct gem_conf {
346 		/* name */
347 		char	gc_name[GEM_NAME_LEN];
348 
349 		/* specification on tx and rx dma engine */
350 		long	gc_tx_buf_align;
351 		int	gc_tx_max_frags;
352 		int	gc_tx_max_descs_per_pkt;
353 		int	gc_tx_buf_size;
354 		int	gc_tx_buf_limit;
355 		int	gc_tx_desc_unit_shift;
356 		int	gc_tx_ring_size;
357 		int	gc_tx_ring_limit;
358 		int	gc_tx_copy_thresh;
359 		boolean_t gc_tx_auto_pad;
360 		boolean_t gc_tx_desc_write_oo;
361 
362 		long	gc_rx_buf_align;
363 		int	gc_rx_max_frags;
364 		int	gc_rx_desc_unit_shift;
365 		int	gc_rx_ring_size;
366 		int	gc_rx_copy_thresh;
367 		int	gc_rx_buf_max;
368 		int	gc_rx_header_len;
369 
370 		int	gc_io_area_size;
371 
372 		/* memory mapping attributes */
373 		struct ddi_device_acc_attr	gc_dev_attr;
374 		struct ddi_device_acc_attr	gc_buf_attr;
375 		struct ddi_device_acc_attr	gc_desc_attr;
376 
377 		/* dma attributes */
378 		ddi_dma_attr_t		gc_dma_attr_desc;
379 		ddi_dma_attr_t		gc_dma_attr_txbuf;
380 		ddi_dma_attr_t		gc_dma_attr_rxbuf;
381 
382 		/* tx time out parameters */
383 		clock_t	gc_tx_timeout;
384 		clock_t	gc_tx_timeout_interval;
385 
386 		/* auto negotiation capability */
387 		int		gc_flow_control;
388 
389 		/* MII mode */
390 		int	gc_mii_mode;
391 #define		GEM_MODE_100BASETX	0
392 #define		GEM_MODE_1000BASET	1
393 #define		GEM_MODE_1000BASETX	2
394 
395 		/* MII link state watch parameters */
396 		clock_t	gc_mii_linkdown_timeout;
397 		clock_t	gc_mii_link_watch_interval;
398 		clock_t	gc_mii_reset_timeout;
399 
400 		clock_t	gc_mii_an_watch_interval;
401 		clock_t	gc_mii_an_timeout;
402 		clock_t	gc_mii_an_wait;
403 		clock_t	gc_mii_an_delay;
404 
405 		/* MII configuration */
406 		int	gc_mii_addr_min;
407 		int	gc_mii_linkdown_action;
408 		int	gc_mii_linkdown_timeout_action;
409 #define		MII_ACTION_NONE		0
410 #define		MII_ACTION_RESET	1
411 #define		MII_ACTION_RSA		2
412 		boolean_t	gc_mii_dont_reset;
413 		boolean_t	gc_mii_an_oneshot;
414 		boolean_t	gc_mii_hw_link_detection;
415 		boolean_t	gc_mii_stop_mac_on_linkdown;
416 
417 		/* I/O methods */
418 
419 		/* mac operation */
420 		int	(*gc_attach_chip)(struct gem_dev *dp);
421 		int	(*gc_reset_chip)(struct gem_dev *dp);
422 		int	(*gc_init_chip)(struct gem_dev *dp);
423 		int	(*gc_start_chip)(struct gem_dev *dp);
424 		int	(*gc_stop_chip)(struct gem_dev *dp);
425 		uint32_t (*gc_multicast_hash)(struct gem_dev *dp, uint8_t *);
426 		int	(*gc_set_rx_filter)(struct gem_dev *dp);
427 		int	(*gc_set_media)(struct gem_dev *dp);
428 		int	(*gc_get_stats)(struct gem_dev *dp);
429 		uint_t	(*gc_interrupt)(struct gem_dev *dp);
430 
431 		/* descriptor operation */
432 		int	(*gc_tx_desc_write)(struct gem_dev *dp, int slot,
433 				ddi_dma_cookie_t *dmacookie,
434 				int frags, uint64_t flag);
435 #define			GEM_TXFLAG_INTR		0x00000001ull
436 #define			GEM_TXFLAG_TCP		0x00000002ull
437 #define				GEM_TXFLAG_TCP_SHIFT		1ull
438 #define			GEM_TXFLAG_UDP		0x00000004ull
439 #define				GEM_TXFLAG_UDP_SHIFT		2ull
440 #define			GEM_TXFLAG_IPv4		0x00000008ull
441 #define				GEM_TXFLAG_IPv4_SHIFT		3ull
442 #define			GEM_TXFLAG_IPv6		0x00000010ull
443 #define				GEM_TXFLAG_IPv6_SHIFT		4ull
444 #define			GEM_TXFLAG_HEAD		0x00000020ull
445 #define			GEM_TXFLAG_TAIL		0x00000040ull
446 #define			GEM_TXFLAG_SWVTAG	0x00000080ull
447 #define			GEM_TXFLAG_PRIVATE	0x0000ff00ull
448 #define				GEM_TXFLAG_PRIVATE_SHIFT	8ull
449 #define				GEM_TXFLAG_PRIVATE_MASK	0xffull
450 #define			GEM_TXFLAG_VID		0x0fff0000ull
451 #define				GEM_TXFLAG_VID_SHIFT		16ull
452 #define				GEM_TXFLAG_VID_MASK		0xfffull
453 #define			GEM_TXFLAG_CFI		0x10000000ull
454 #define			GEM_TXFLAG_PRI		0xe0000000ull
455 #define				GEM_TXFLAG_PRI_SHIFT		29ull
456 #define				GEM_TXFLAG_PRI_MASK		0x7ull
457 #define			GEM_TXFLAG_VTAG		0xffff0000ull
458 #define				GEM_TXFLAG_VTAG_SHIFT		16ull
459 #define			GEM_TXFLAG_HCKSTART	0x000000ff00000000ull
460 #define				GEM_TXFLAG_HCKSTART_SHIFT	32ull
461 #define			GEM_TXFLAG_HCKSTUFF	0x0000ff0000000000ull
462 #define				GEM_TXFLAG_HCKSTUFF_SHIFT	40ull
463 #define			GEM_TXFLAG_TCPHLEN	0x0000ff0000000000ull
464 #define				GEM_TXFLAG_TCPHLEN_SHIFT	40ull
465 #define			GEM_TXFLAG_MSS		0xffff000000000000ull
466 #define				GEM_TXFLAG_MSS_SHIFT	48ull
467 
468 		void (*gc_tx_start) (struct gem_dev *dp, int slot, int frags);
469 		void	(*gc_rx_desc_write)(struct gem_dev *dp, int slot,
470 			    ddi_dma_cookie_t *dmacookie, int frags);
471 		void	(*gc_rx_start)(struct gem_dev *dp, int slot, int frags);
472 
473 		uint_t	(*gc_tx_desc_stat)
474 			(struct gem_dev *dp, int slot, int descs);
475 #define			GEM_TX_DONE	0x00010000
476 #define			GEM_TX_ERR	0x00020000
477 
478 
479 		uint64_t (*gc_rx_desc_stat)
480 				(struct gem_dev *dp, int slot, int frags);
481 
482 #define			GEM_RX_CKSUM		0xffff000000000000ull
483 #define			GEM_RX_CKSUM_SHIFT	48
484 #define			GEM_RX_PRI		0x0000e00000000000ull
485 #define			GEM_RX_PRI_SHIFT	45
486 #define			GEM_RX_CFI		0x0000100000000000ull
487 #define			GEM_RX_VID		0x00000fff00000000ull
488 #define			GEM_RX_VID_SHIFT	32
489 #define			GEM_RX_VTAG		0x0000ffff00000000ull
490 #define			GEM_RX_VTAG_SHIFT	32
491 
492 #define			GEM_RX_CKSUM_IPv6	0x00080000ul
493 #define			GEM_RX_CKSUM_IPv6_SHIFT	19
494 #define			GEM_RX_CKSUM_IPv4	0x00040000ul
495 #define			GEM_RX_CKSUM_IPv4_SHIFT	18
496 #define			GEM_RX_CKSUM_UDP	0x00020000ul
497 #define			GEM_RX_CKSUM_UDP_SHIFT	17
498 #define			GEM_RX_CKSUM_TCP	0x00010000ul
499 #define			GEM_RX_CKSUM_TCP_SHIFT	16
500 #define			GEM_RX_ERR		0x00008000ul
501 #define			GEM_RX_DONE		0x00004000ul
502 #define			GEM_RX_LEN		0x00003ffful	/* 16KB - 1 */
503 
504 		void	(*gc_tx_desc_init)(struct gem_dev *dp, int slot);
505 		void	(*gc_rx_desc_init)(struct gem_dev *dp, int slot);
506 		void	(*gc_tx_desc_clean)(struct gem_dev *dp, int slot);
507 		void	(*gc_rx_desc_clean)(struct gem_dev *dp, int slot);
508 
509 		/* mii operations */
510 		int	(*gc_mii_probe)(struct gem_dev *dp);
511 		int	(*gc_mii_init)(struct gem_dev *dp);
512 		int	(*gc_mii_config)(struct gem_dev *dp);
513 		void	(*gc_mii_sync)(struct gem_dev *dp);
514 		uint16_t (*gc_mii_read)(struct gem_dev *dp, uint_t reg);
515 		void (*gc_mii_write)(struct gem_dev *dp,
516 			uint_t reg, uint16_t val);
517 		void (*gc_mii_tune_phy)(struct gem_dev *dp);
518 
519 		/* packet in/out operation for copy-style  */
520 		void (*gc_put_packet)(struct gem_dev *dp,
521 			mblk_t *, void *, size_t);
522 		mblk_t	*(*gc_get_packet)(struct gem_dev *dp,
523 			struct rxbuf *, size_t);
524 		int	gc_nports;
525 
526 		/* hw checksum */
527 		uint32_t	gc_hck_rx_start;
528 	} gc;
529 
530 	uint32_t	misc_flag;
531 #define		GEM_LSO			0x00000400
532 #define		GEM_CTRL_PKT		0x00000200
533 #define		GEM_SOFTINTR		0x00000100
534 #define		GEM_POLL_RXONLY		0x00000080
535 #define		GEM_VLAN_HARD		0x00000040
536 #define		GEM_VLAN_SOFT		0x00000020
537 #define		GEM_VLAN		(GEM_VLAN_HARD | GEM_VLAN_SOFT)
538 #define		GEM_CKSUM_HEADER_IPv4	0x00000010
539 #define		GEM_CKSUM_PARTIAL	0x00000008
540 #define		GEM_CKSUM_FULL_IPv6	0x00000004
541 #define		GEM_CKSUM_FULL_IPv4	0x00000002
542 #define		GEM_NOINTR		0x00000001
543 
544 	volatile timeout_id_t	intr_watcher_id;
545 
546 	uint_t	mtu;
547 
548 	/* performance tuning parameters */
549 	uint_t	txthr;		/* tx fifo threshoold */
550 	uint_t	txmaxdma;	/* tx max dma burst size */
551 	uint_t	rxthr;		/* rx fifo threshoold */
552 	uint_t	rxmaxdma;	/* tx max dma burst size */
553 
554 	/* kstat stuff */
555 	kstat_t	*ksp;
556 
557 	/* multiple port device support */
558 	struct	gem_dev	*next;	/* pointer to next port on the same device */
559 	int		port;
560 
561 	/* ndd stuff */
562 	caddr_t	nd_data_p;
563 	caddr_t	nd_arg_p;
564 
565 #ifdef GEM_DEBUG_LEVEL
566 	int	tx_cnt;
567 #endif
568 };
569 
570 /*
571  * Exported functions
572  */
573 boolean_t gem_get_mac_addr_conf(struct gem_dev *);
574 int gem_mii_probe_default(struct gem_dev *);
575 int gem_mii_config_default(struct gem_dev *);
576 boolean_t gem_mii_link_check(struct gem_dev *dp);
577 uint16_t gem_mii_read(struct gem_dev *, uint_t);
578 void gem_mii_write(struct gem_dev *, uint_t, uint16_t);
579 int gem_reclaim_txbuf(struct gem_dev *dp);
580 int gem_restart_nic(struct gem_dev *dp, uint_t flags);
581 #define	GEM_RESTART_NOWAIT	0x00000002
582 #define	GEM_RESTART_KEEP_BUF	0x00000001
583 boolean_t gem_tx_done(struct gem_dev *);
584 int gem_receive(struct gem_dev *);
585 int gem_receive_copy(struct gem_dev *);
586 struct gem_dev *gem_do_attach(dev_info_t *, int,
587 		struct gem_conf *, void *, ddi_acc_handle_t *, void *, int);
588 
589 mblk_t *gem_send_common(struct gem_dev *, mblk_t *, uint32_t);
590 #define	GEM_SEND_COPY	0x00008000
591 #define	GEM_SEND_CTRL	0x000000ff	/* private flags for control packets */
592 #define	GEM_SEND_VTAG	0xffff0000
593 #define	GEM_SEND_VTAG_SHIFT	16
594 
595 mblk_t *gem_get_packet_default(struct gem_dev *, struct rxbuf *, size_t);
596 
597 uint32_t gem_ether_crc_le(const uint8_t *addr, int len);
598 uint32_t gem_ether_crc_be(const uint8_t *addr, int len);
599 int gem_do_detach(dev_info_t *);
600 
601 int gem_getlongprop_buf(dev_t dev, dev_info_t *dip,
602 	int flags, char *name, void *buf, int *lenp);
603 int gem_getprop(dev_t dev, dev_info_t *dip,
604 	int flags, char *name, int defvalue);
605 
606 struct rxbuf *gem_get_rxbuf(struct gem_dev *, int);
607 
608 void gem_rx_desc_dma_sync(struct gem_dev *, int, int, int);
609 void gem_tx_desc_dma_sync(struct gem_dev *, int, int, int);
610 
611 int gem_resume(dev_info_t *);
612 int gem_suspend(dev_info_t *);
613 uint8_t gem_search_pci_cap(dev_info_t *dip, ddi_acc_handle_t, uint8_t);
614 int gem_pci_set_power_state(dev_info_t *, ddi_acc_handle_t, uint_t);
615 int gem_pci_regs_map_setup(dev_info_t *, uint32_t, uint32_t,
616 	struct ddi_device_acc_attr *, caddr_t *, ddi_acc_handle_t *);
617 void gem_mod_init(struct dev_ops *, char *);
618 void gem_mod_fini(struct dev_ops *);
619 
620 #define	GEM_GET_DEV(dip) \
621 	((struct gem_dev *)(ddi_get_driver_private(dip)))
622 #endif /* _SFE_UTIL_H_ */
623