xref: /titanic_44/usr/src/uts/common/io/sfe/sfe_util.h (revision 9c9af2590af49bb395bc8d2eace0f2d4ea16d165)
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 #ifndef _SFE_UTIL_H_
35 #define	_SFE_UTIL_H_
36 #include <sys/mac.h>
37 #include <sys/mac_ether.h>
38 
39 /*
40  * Useful macros and typedefs
41  */
42 
43 #define	GEM_NAME_LEN	32
44 
45 #define	GEM_TX_TIMEOUT		(drv_usectohz(5*1000000))
46 #define	GEM_TX_TIMEOUT_INTERVAL	(drv_usectohz(1*1000000))
47 #define	GEM_LINK_WATCH_INTERVAL	(drv_usectohz(1*1000000))	/* 1 sec */
48 
49 /* general return code */
50 #define	GEM_SUCCESS	0
51 #define	GEM_FAILURE	(-1)
52 
53 /* return code of gem_tx_done */
54 #define	INTR_RESTART_TX	0x80000000
55 
56 typedef	int32_t		seqnum_t;
57 
58 /*
59  * I/O instructions
60  */
61 #define	OUTB(dp, p, v)	\
62 	ddi_put8((dp)->regs_handle, \
63 		(void *)((caddr_t)((dp)->base_addr) + (p)), v)
64 #define	OUTW(dp, p, v)	\
65 	ddi_put16((dp)->regs_handle, \
66 		(void *)((caddr_t)((dp)->base_addr) + (p)), v)
67 #define	OUTL(dp, p, v)  \
68 	ddi_put32((dp)->regs_handle, \
69 	    (void *)((caddr_t)((dp)->base_addr) + (p)), v)
70 #define	OUTLINL(dp, p, v) \
71 	ddi_put32((dp)->regs_handle, \
72 	    (void *)((caddr_t)((dp)->base_addr) + (p)), v); \
73 	(void) INL((dp), (p))
74 #define	INB(dp, p)	\
75 	ddi_get8((dp)->regs_handle, \
76 		(void *)(((caddr_t)(dp)->base_addr) + (p)))
77 #define	INW(dp, p)	\
78 	ddi_get16((dp)->regs_handle, \
79 		(void *)(((caddr_t)(dp)->base_addr) + (p)))
80 #define	INL(dp, p)	\
81 	ddi_get32((dp)->regs_handle, \
82 		(void *)(((caddr_t)(dp)->base_addr) + (p)))
83 
84 struct gem_stats {
85 	uint32_t	intr;
86 
87 	uint32_t	crc;
88 	uint32_t	errrcv;
89 	uint32_t	overflow;
90 	uint32_t	frame;
91 	uint32_t	missed;
92 	uint32_t	runt;
93 	uint32_t	frame_too_long;
94 	uint32_t	norcvbuf;
95 	uint32_t	sqe;
96 
97 	uint32_t	collisions;
98 	uint32_t	first_coll;
99 	uint32_t	multi_coll;
100 	uint32_t	excoll;
101 	uint32_t	xmit_internal_err;
102 	uint32_t	nocarrier;
103 	uint32_t	defer;
104 	uint32_t	errxmt;
105 	uint32_t	underflow;
106 	uint32_t	xmtlatecoll;
107 	uint32_t	noxmtbuf;
108 	uint32_t	jabber;
109 
110 	uint64_t	rbytes;
111 	uint64_t	obytes;
112 	uint64_t	rpackets;
113 	uint64_t	opackets;
114 	uint32_t	rbcast;
115 	uint32_t	obcast;
116 	uint32_t	rmcast;
117 	uint32_t	omcast;
118 	uint32_t	rcv_internal_err;
119 };
120 #define	GEM_MAXTXSEGS		4
121 #define	GEM_MAXRXSEGS		1
122 
123 #define	GEM_MAXTXFRAGS		8
124 #define	GEM_MAXRXFRAGS		4
125 /* TX buffer management */
126 struct txbuf {
127 	struct txbuf		*txb_next;
128 
129 	/* pointer to original mblk */
130 	mblk_t			*txb_mp;
131 
132 	/* dma mapping for current packet */
133 	ddi_dma_cookie_t	txb_dmacookie[GEM_MAXTXFRAGS];
134 	uint_t			txb_nfrags;
135 
136 	/* bounce buffer management */
137 	ddi_dma_handle_t	txb_bdh;
138 	ddi_acc_handle_t	txb_bah;
139 	caddr_t			txb_buf;	/* vaddr of bounce buffer */
140 	uint64_t		txb_buf_dma;	/* paddr of bounce buffer */
141 
142 	/* timeout management */
143 	clock_t			txb_stime;
144 
145 	/* Hardware descriptor info */
146 	seqnum_t		txb_desc;
147 	int			txb_ndescs;
148 	uint64_t		txb_flag;
149 };
150 
151 
152 /* RX buffer management */
153 struct rxbuf {
154 	/* Hardware independent section */
155 	struct rxbuf		*rxb_next;
156 	struct gem_dev		*rxb_devp;
157 
158 	/* dma mapping management */
159 	ddi_dma_handle_t	rxb_dh;
160 	caddr_t			rxb_buf;
161 	size_t			rxb_buf_len;
162 	ddi_dma_cookie_t	rxb_dmacookie[GEM_MAXRXFRAGS];
163 	uint_t			rxb_nfrags;
164 
165 	/* bounce buffer management */
166 	ddi_acc_handle_t	rxb_bah;
167 };
168 
169 struct mcast_addr {
170 	struct ether_addr	addr;
171 	uint32_t		hash;
172 };
173 
174 #define	GEM_MAXMC		64
175 #define	GEM_MCALLOC		(sizeof (struct mcast_addr) * GEM_MAXMC)
176 
177 #define	SUB(x, y)		((seqnum_t)((x) - (y)))
178 #define	SLOT(seqnum, size)	(((unsigned int)(seqnum)) & ((size)-1))
179 
180 /*
181  * mac soft state
182  */
183 struct gem_dev {
184 	dev_info_t		*dip;
185 	mac_handle_t		mh;
186 	char			name[GEM_NAME_LEN];
187 	void			*base_addr;
188 	ddi_acc_handle_t	regs_handle;
189 	ddi_iblock_cookie_t	iblock_cookie;
190 
191 	/* MAC address information */
192 	struct ether_addr	cur_addr;
193 	struct ether_addr	dev_addr;
194 
195 	/* Descriptor rings, io area */
196 	ddi_dma_handle_t	desc_dma_handle;
197 	ddi_acc_handle_t	desc_acc_handle;
198 	caddr_t			rx_ring;
199 	caddr_t			tx_ring;
200 	caddr_t			io_area;
201 	/* caddr_t			rx_buf; */
202 
203 	uint64_t		rx_ring_dma;
204 	uint64_t		tx_ring_dma;
205 	uint64_t		io_area_dma;
206 
207 	/* RX slot ring management */
208 	kmutex_t		intrlock;
209 	boolean_t		intr_busy;
210 	seqnum_t		rx_active_head;
211 	seqnum_t		rx_active_tail;
212 	mac_resource_handle_t	mac_rx_ring_ha;
213 	/* Rx buffer management */
214 	struct rxbuf		*rx_buf_head;
215 	struct rxbuf		*rx_buf_tail;
216 	struct rxbuf		*rx_buf_freelist;
217 	int			rx_buf_allocated;
218 	int			rx_buf_freecnt;
219 	int			rx_buf_len;
220 
221 	/* TX descriptor ring management */
222 	seqnum_t		tx_desc_head;
223 	seqnum_t		tx_desc_tail;
224 	seqnum_t		tx_desc_intr;
225 
226 	/* TX buffur ring management */
227 	kmutex_t		xmitlock;
228 	kcondvar_t		tx_drain_cv;
229 	seqnum_t		tx_active_head;
230 	seqnum_t		tx_active_tail;
231 	seqnum_t		tx_softq_head;
232 	seqnum_t		tx_softq_tail;
233 	seqnum_t		tx_free_head;
234 	seqnum_t		tx_free_tail;
235 	int			tx_max_packets;
236 
237 	/* TX buffer resource management */
238 	struct txbuf		*tx_buf;
239 	seqnum_t		tx_slots_base;
240 
241 	/* TX state management */
242 	int			tx_busy;
243 	int			tx_reclaim_busy;
244 	clock_t			tx_blocked;
245 
246 	/* NIC state */
247 	volatile boolean_t	mac_active;	/* tx and rx are running */
248 	volatile int		nic_state;	/* logical driver state */
249 #define	NIC_STATE_STOPPED	0
250 #define	NIC_STATE_INITIALIZED	1
251 #define	NIC_STATE_ONLINE	2
252 	volatile boolean_t	mac_suspended;
253 
254 	/* robustness: timer and watchdog */
255 	volatile timeout_id_t	timeout_id;
256 
257 
258 	/* MII management */
259 	boolean_t		anadv_autoneg:1;
260 	boolean_t		anadv_1000fdx:1;
261 	boolean_t		anadv_1000hdx:1;
262 	boolean_t		anadv_100t4:1;
263 	boolean_t		anadv_100fdx:1;
264 	boolean_t		anadv_100hdx:1;
265 	boolean_t		anadv_10fdx:1;
266 	boolean_t		anadv_10hdx:1;
267 	boolean_t		anadv_flow_control:2;
268 	boolean_t		mii_advert_ro:1;
269 
270 	boolean_t		full_duplex:1;
271 	int			speed:3;
272 #define		GEM_SPD_10	0
273 #define		GEM_SPD_100	1
274 #define		GEM_SPD_1000	2
275 #define		GEM_SPD_NUM	3
276 	unsigned int		flow_control:2;
277 #define		FLOW_CONTROL_NONE	0
278 #define		FLOW_CONTROL_SYMMETRIC	1
279 #define		FLOW_CONTROL_TX_PAUSE	2
280 #define		FLOW_CONTROL_RX_PAUSE	3
281 
282 	boolean_t		mii_supress_msg:1;
283 
284 	uint32_t		mii_phy_id;
285 	uint16_t		mii_status;
286 	uint16_t		mii_advert;
287 	uint16_t		mii_lpable;
288 	uint16_t		mii_exp;
289 	uint16_t		mii_ctl1000;
290 	uint16_t		mii_stat1000;
291 	uint16_t		mii_xstatus;
292 	int8_t			mii_phy_addr;	/* must be signed */
293 
294 	uint8_t			mii_state;
295 #define		MII_STATE_UNKNOWN		0
296 #define		MII_STATE_RESETTING		1
297 #define		MII_STATE_AUTONEGOTIATING	2
298 #define		MII_STATE_AN_DONE		3
299 #define		MII_STATE_MEDIA_SETUP		4
300 #define		MII_STATE_LINKUP		5
301 #define		MII_STATE_LINKDOWN		6
302 
303 	clock_t			mii_last_check;	/* in tick */
304 	clock_t			mii_timer;	/* in tick */
305 #define		MII_RESET_TIMEOUT	drv_usectohz(1000*1000)
306 #define		MII_AN_TIMEOUT		drv_usectohz(5000*1000)
307 #define		MII_LINKDOWN_TIMEOUT	drv_usectohz(10000*1000)
308 	clock_t			mii_interval;	/* in tick */
309 	clock_t			linkup_delay;	/* in tick */
310 
311 	volatile timeout_id_t	link_watcher_id;
312 
313 	ddi_softintr_t		soft_id;
314 
315 	/* multcast list management */
316 	int16_t			mc_count;
317 	int16_t			mc_count_req;
318 	struct mcast_addr	*mc_list;
319 	uint32_t		rxmode;
320 #define		RXMODE_PROMISC		0x01
321 #define		RXMODE_ALLMULTI_REQ	0x02
322 #define		RXMODE_MULTI_OVF	0x04
323 #define		RXMODE_ENABLE		0x08
324 #define		RXMODE_ALLMULTI		(RXMODE_ALLMULTI_REQ | RXMODE_MULTI_OVF)
325 #define		RXMODE_BITS	\
326 			"\020"	\
327 			"\004ENABLE"	\
328 			"\003MULTI_OVF"	\
329 			"\002ALLMULTI_REQ"	\
330 			"\001PROMISC"
331 
332 	/* statistcs */
333 	struct gem_stats		stats;
334 
335 	/* pointer to local structure */
336 	void			*private;
337 	int			priv_size;
338 
339 	/* polling mode */
340 	int			poll_pkt_delay;	/* in number of packets */
341 
342 	/* descriptor area */
343 	int			tx_desc_size;
344 	int			rx_desc_size;
345 
346 	/* configuration */
347 	struct gem_conf {
348 		/* name */
349 		char	gc_name[GEM_NAME_LEN];
350 
351 		/* specification on tx and rx dma engine */
352 		long	gc_tx_buf_align;
353 		int	gc_tx_max_frags;
354 		int	gc_tx_max_descs_per_pkt;
355 		int	gc_tx_buf_size;
356 		int	gc_tx_buf_limit;
357 		int	gc_tx_desc_unit_shift;
358 		int	gc_tx_ring_size;
359 		int	gc_tx_ring_limit;
360 		int	gc_tx_copy_thresh;
361 		boolean_t gc_tx_auto_pad;
362 		boolean_t gc_tx_desc_write_oo;
363 
364 		long	gc_rx_buf_align;
365 		int	gc_rx_max_frags;
366 		int	gc_rx_desc_unit_shift;
367 		int	gc_rx_ring_size;
368 		int	gc_rx_copy_thresh;
369 		int	gc_rx_buf_max;
370 		int	gc_rx_header_len;
371 
372 		int	gc_io_area_size;
373 
374 		/* memory mapping attributes */
375 		struct ddi_device_acc_attr	gc_dev_attr;
376 		struct ddi_device_acc_attr	gc_buf_attr;
377 		struct ddi_device_acc_attr	gc_desc_attr;
378 
379 		/* dma attributes */
380 		ddi_dma_attr_t		gc_dma_attr_desc;
381 		ddi_dma_attr_t		gc_dma_attr_txbuf;
382 		ddi_dma_attr_t		gc_dma_attr_rxbuf;
383 
384 		/* tx time out parameters */
385 		clock_t	gc_tx_timeout;
386 		clock_t	gc_tx_timeout_interval;
387 
388 		/* auto negotiation capability */
389 		int		gc_flow_control;
390 
391 		/* MII mode */
392 		int	gc_mii_mode;
393 #define		GEM_MODE_100BASETX	0
394 #define		GEM_MODE_1000BASET	1
395 #define		GEM_MODE_1000BASETX	2
396 
397 		/* MII link state watch parameters */
398 		clock_t	gc_mii_linkdown_timeout;
399 		clock_t	gc_mii_link_watch_interval;
400 		clock_t	gc_mii_reset_timeout;
401 
402 		clock_t	gc_mii_an_watch_interval;
403 		clock_t	gc_mii_an_timeout;
404 		clock_t	gc_mii_an_wait;
405 		clock_t	gc_mii_an_delay;
406 
407 		/* MII configuration */
408 		int	gc_mii_addr_min;
409 		int	gc_mii_linkdown_action;
410 		int	gc_mii_linkdown_timeout_action;
411 #define		MII_ACTION_NONE		0
412 #define		MII_ACTION_RESET	1
413 #define		MII_ACTION_RSA		2
414 		boolean_t	gc_mii_dont_reset;
415 		boolean_t	gc_mii_an_oneshot;
416 		boolean_t	gc_mii_hw_link_detection;
417 		boolean_t	gc_mii_stop_mac_on_linkdown;
418 
419 		/* I/O methods */
420 
421 		/* mac operation */
422 		int	(*gc_attach_chip)(struct gem_dev *dp);
423 		int	(*gc_reset_chip)(struct gem_dev *dp);
424 		int	(*gc_init_chip)(struct gem_dev *dp);
425 		int	(*gc_start_chip)(struct gem_dev *dp);
426 		int	(*gc_stop_chip)(struct gem_dev *dp);
427 		uint32_t (*gc_multicast_hash)(struct gem_dev *dp, uint8_t *);
428 		int	(*gc_set_rx_filter)(struct gem_dev *dp);
429 		int	(*gc_set_media)(struct gem_dev *dp);
430 		int	(*gc_get_stats)(struct gem_dev *dp);
431 		uint_t	(*gc_interrupt)(struct gem_dev *dp);
432 
433 		/* descriptor operation */
434 		int	(*gc_tx_desc_write)(struct gem_dev *dp, int slot,
435 				ddi_dma_cookie_t *dmacookie,
436 				int frags, uint64_t flag);
437 #define			GEM_TXFLAG_INTR		0x00000001ull
438 #define			GEM_TXFLAG_TCP		0x00000002ull
439 #define				GEM_TXFLAG_TCP_SHIFT		1ull
440 #define			GEM_TXFLAG_UDP		0x00000004ull
441 #define				GEM_TXFLAG_UDP_SHIFT		2ull
442 #define			GEM_TXFLAG_IPv4		0x00000008ull
443 #define				GEM_TXFLAG_IPv4_SHIFT		3ull
444 #define			GEM_TXFLAG_IPv6		0x00000010ull
445 #define				GEM_TXFLAG_IPv6_SHIFT		4ull
446 #define			GEM_TXFLAG_HEAD		0x00000020ull
447 #define			GEM_TXFLAG_TAIL		0x00000040ull
448 #define			GEM_TXFLAG_SWVTAG	0x00000080ull
449 #define			GEM_TXFLAG_PRIVATE	0x0000ff00ull
450 #define				GEM_TXFLAG_PRIVATE_SHIFT	8ull
451 #define				GEM_TXFLAG_PRIVATE_MASK	0xffull
452 #define			GEM_TXFLAG_VID		0x0fff0000ull
453 #define				GEM_TXFLAG_VID_SHIFT		16ull
454 #define				GEM_TXFLAG_VID_MASK		0xfffull
455 #define			GEM_TXFLAG_CFI		0x10000000ull
456 #define			GEM_TXFLAG_PRI		0xe0000000ull
457 #define				GEM_TXFLAG_PRI_SHIFT		29ull
458 #define				GEM_TXFLAG_PRI_MASK		0x7ull
459 #define			GEM_TXFLAG_VTAG		0xffff0000ull
460 #define				GEM_TXFLAG_VTAG_SHIFT		16ull
461 #define			GEM_TXFLAG_HCKSTART	0x000000ff00000000ull
462 #define				GEM_TXFLAG_HCKSTART_SHIFT	32ull
463 #define			GEM_TXFLAG_HCKSTUFF	0x0000ff0000000000ull
464 #define				GEM_TXFLAG_HCKSTUFF_SHIFT	40ull
465 #define			GEM_TXFLAG_TCPHLEN	0x0000ff0000000000ull
466 #define				GEM_TXFLAG_TCPHLEN_SHIFT	40ull
467 #define			GEM_TXFLAG_MSS		0xffff000000000000ull
468 #define				GEM_TXFLAG_MSS_SHIFT	48ull
469 
470 		void (*gc_tx_start) (struct gem_dev *dp, int slot, int frags);
471 		void	(*gc_rx_desc_write)(struct gem_dev *dp, int slot,
472 			    ddi_dma_cookie_t *dmacookie, int frags);
473 		void	(*gc_rx_start)(struct gem_dev *dp, int slot, int frags);
474 
475 		uint_t	(*gc_tx_desc_stat)
476 			(struct gem_dev *dp, int slot, int descs);
477 #define			GEM_TX_DONE	0x00010000
478 #define			GEM_TX_ERR	0x00020000
479 
480 
481 		uint64_t (*gc_rx_desc_stat)
482 				(struct gem_dev *dp, int slot, int frags);
483 
484 #define			GEM_RX_CKSUM		0xffff000000000000ull
485 #define			GEM_RX_CKSUM_SHIFT	48
486 #define			GEM_RX_PRI		0x0000e00000000000ull
487 #define			GEM_RX_PRI_SHIFT	45
488 #define			GEM_RX_CFI		0x0000100000000000ull
489 #define			GEM_RX_VID		0x00000fff00000000ull
490 #define			GEM_RX_VID_SHIFT	32
491 #define			GEM_RX_VTAG		0x0000ffff00000000ull
492 #define			GEM_RX_VTAG_SHIFT	32
493 
494 #define			GEM_RX_CKSUM_IPv6	0x00080000ul
495 #define			GEM_RX_CKSUM_IPv6_SHIFT	19
496 #define			GEM_RX_CKSUM_IPv4	0x00040000ul
497 #define			GEM_RX_CKSUM_IPv4_SHIFT	18
498 #define			GEM_RX_CKSUM_UDP	0x00020000ul
499 #define			GEM_RX_CKSUM_UDP_SHIFT	17
500 #define			GEM_RX_CKSUM_TCP	0x00010000ul
501 #define			GEM_RX_CKSUM_TCP_SHIFT	16
502 #define			GEM_RX_ERR		0x00008000ul
503 #define			GEM_RX_DONE		0x00004000ul
504 #define			GEM_RX_LEN		0x00003ffful	/* 16KB - 1 */
505 
506 		void	(*gc_tx_desc_init)(struct gem_dev *dp, int slot);
507 		void	(*gc_rx_desc_init)(struct gem_dev *dp, int slot);
508 		void	(*gc_tx_desc_clean)(struct gem_dev *dp, int slot);
509 		void	(*gc_rx_desc_clean)(struct gem_dev *dp, int slot);
510 
511 		/* mii operations */
512 		int	(*gc_mii_probe)(struct gem_dev *dp);
513 		int	(*gc_mii_init)(struct gem_dev *dp);
514 		int	(*gc_mii_config)(struct gem_dev *dp);
515 		void	(*gc_mii_sync)(struct gem_dev *dp);
516 		uint16_t (*gc_mii_read)(struct gem_dev *dp, uint_t reg);
517 		void (*gc_mii_write)(struct gem_dev *dp,
518 			uint_t reg, uint16_t val);
519 		void (*gc_mii_tune_phy)(struct gem_dev *dp);
520 
521 		/* packet in/out operation for copy-style  */
522 		void (*gc_put_packet)(struct gem_dev *dp,
523 			mblk_t *, void *, size_t);
524 		mblk_t	*(*gc_get_packet)(struct gem_dev *dp,
525 			struct rxbuf *, size_t);
526 		int	gc_nports;
527 
528 		/* hw checksum */
529 		uint32_t	gc_hck_rx_start;
530 	} gc;
531 
532 	uint32_t	misc_flag;
533 #define		GEM_LSO			0x00000400
534 #define		GEM_CTRL_PKT		0x00000200
535 #define		GEM_SOFTINTR		0x00000100
536 #define		GEM_POLL_RXONLY		0x00000080
537 #define		GEM_VLAN_HARD		0x00000040
538 #define		GEM_VLAN_SOFT		0x00000020
539 #define		GEM_VLAN		(GEM_VLAN_HARD | GEM_VLAN_SOFT)
540 #define		GEM_CKSUM_HEADER_IPv4	0x00000010
541 #define		GEM_CKSUM_PARTIAL	0x00000008
542 #define		GEM_CKSUM_FULL_IPv6	0x00000004
543 #define		GEM_CKSUM_FULL_IPv4	0x00000002
544 #define		GEM_NOINTR		0x00000001
545 
546 	volatile timeout_id_t	intr_watcher_id;
547 
548 	uint_t	mtu;
549 
550 	/* performance tuning parameters */
551 	uint_t	txthr;		/* tx fifo threshoold */
552 	uint_t	txmaxdma;	/* tx max dma burst size */
553 	uint_t	rxthr;		/* rx fifo threshoold */
554 	uint_t	rxmaxdma;	/* tx max dma burst size */
555 
556 	/* kstat stuff */
557 	kstat_t	*ksp;
558 
559 	/* multiple port device support */
560 	struct	gem_dev	*next;	/* pointer to next port on the same device */
561 	int		port;
562 
563 	/* ndd stuff */
564 	caddr_t	nd_data_p;
565 	caddr_t	nd_arg_p;
566 
567 #ifdef GEM_DEBUG_LEVEL
568 	int	tx_cnt;
569 #endif
570 };
571 
572 /*
573  * Exported functions
574  */
575 boolean_t gem_get_mac_addr_conf(struct gem_dev *);
576 int gem_mii_probe_default(struct gem_dev *);
577 int gem_mii_config_default(struct gem_dev *);
578 boolean_t gem_mii_link_check(struct gem_dev *dp);
579 uint16_t gem_mii_read(struct gem_dev *, uint_t);
580 void gem_mii_write(struct gem_dev *, uint_t, uint16_t);
581 int gem_reclaim_txbuf(struct gem_dev *dp);
582 int gem_restart_nic(struct gem_dev *dp, uint_t flags);
583 #define	GEM_RESTART_NOWAIT	0x00000002
584 #define	GEM_RESTART_KEEP_BUF	0x00000001
585 boolean_t gem_tx_done(struct gem_dev *);
586 int gem_receive(struct gem_dev *);
587 int gem_receive_copy(struct gem_dev *);
588 struct gem_dev *gem_do_attach(dev_info_t *, int,
589 		struct gem_conf *, void *, ddi_acc_handle_t *, void *, int);
590 
591 mblk_t *gem_send_common(struct gem_dev *, mblk_t *, uint32_t);
592 #define	GEM_SEND_COPY	0x00008000
593 #define	GEM_SEND_CTRL	0x000000ff	/* private flags for control packets */
594 #define	GEM_SEND_VTAG	0xffff0000
595 #define	GEM_SEND_VTAG_SHIFT	16
596 
597 mblk_t *gem_get_packet_default(struct gem_dev *, struct rxbuf *, size_t);
598 
599 uint32_t gem_ether_crc_le(const uint8_t *addr, int len);
600 uint32_t gem_ether_crc_be(const uint8_t *addr, int len);
601 int gem_do_detach(dev_info_t *);
602 
603 int gem_getlongprop_buf(dev_t dev, dev_info_t *dip,
604 	int flags, char *name, void *buf, int *lenp);
605 int gem_getprop(dev_t dev, dev_info_t *dip,
606 	int flags, char *name, int defvalue);
607 
608 struct rxbuf *gem_get_rxbuf(struct gem_dev *, int);
609 
610 void gem_rx_desc_dma_sync(struct gem_dev *, int, int, int);
611 void gem_tx_desc_dma_sync(struct gem_dev *, int, int, int);
612 
613 int gem_resume(dev_info_t *);
614 int gem_suspend(dev_info_t *);
615 uint8_t gem_search_pci_cap(dev_info_t *dip, ddi_acc_handle_t, uint8_t);
616 int gem_pci_set_power_state(dev_info_t *, ddi_acc_handle_t, uint_t);
617 int gem_pci_regs_map_setup(dev_info_t *, uint32_t, uint32_t,
618 	struct ddi_device_acc_attr *, caddr_t *, ddi_acc_handle_t *);
619 void gem_mod_init(struct dev_ops *, char *);
620 void gem_mod_fini(struct dev_ops *);
621 
622 #define	GEM_GET_DEV(dip) \
623 	((struct gem_dev *)(ddi_get_driver_private(dip)))
624 #endif /* _SFE_UTIL_H_ */
625