xref: /illumos-gate/usr/src/uts/common/io/e1000g/e1000g_sw.h (revision 438b5f69eb4f998015cc0835f19f2f80663f2f53)
1 /*
2  * This file is provided under a CDDLv1 license.  When using or
3  * redistributing this file, you may do so under this license.
4  * In redistributing this file this license must be included
5  * and no other modification of this header file is permitted.
6  *
7  * CDDL LICENSE SUMMARY
8  *
9  * Copyright(c) 1999 - 2009 Intel Corporation. All rights reserved.
10  *
11  * The contents of this file are subject to the terms of Version
12  * 1.0 of the Common Development and Distribution License (the "License").
13  *
14  * You should have received a copy of the License with this software.
15  * You can obtain a copy of the License at
16  *	http://www.opensolaris.org/os/licensing.
17  * See the License for the specific language governing permissions
18  * and limitations under the License.
19  */
20 
21 /*
22  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 #ifndef _E1000G_SW_H
26 #define	_E1000G_SW_H
27 
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31 
32 /*
33  * **********************************************************************
34  * Module Name:								*
35  *   e1000g_sw.h							*
36  *									*
37  * Abstract:								*
38  *   This header file contains Software-related data structures		*
39  *   definitions.							*
40  *									*
41  * **********************************************************************
42  */
43 
44 #include <sys/types.h>
45 #include <sys/conf.h>
46 #include <sys/debug.h>
47 #include <sys/stropts.h>
48 #include <sys/stream.h>
49 #include <sys/strsun.h>
50 #include <sys/strlog.h>
51 #include <sys/kmem.h>
52 #include <sys/stat.h>
53 #include <sys/kstat.h>
54 #include <sys/modctl.h>
55 #include <sys/errno.h>
56 #include <sys/mac_provider.h>
57 #include <sys/mac_ether.h>
58 #include <sys/vlan.h>
59 #include <sys/ddi.h>
60 #include <sys/sunddi.h>
61 #include <sys/disp.h>
62 #include <sys/pci.h>
63 #include <sys/sdt.h>
64 #include <sys/ethernet.h>
65 #include <sys/pattr.h>
66 #include <sys/strsubr.h>
67 #include <sys/netlb.h>
68 #include <inet/common.h>
69 #include <inet/ip.h>
70 #include <inet/tcp.h>
71 #include <inet/mi.h>
72 #include <inet/nd.h>
73 #include <sys/ddifm.h>
74 #include <sys/fm/protocol.h>
75 #include <sys/fm/util.h>
76 #include <sys/fm/io/ddi.h>
77 #include "e1000_api.h"
78 
79 /* Driver states */
80 #define	E1000G_UNKNOWN			0x00
81 #define	E1000G_INITIALIZED		0x01
82 #define	E1000G_STARTED			0x02
83 #define	E1000G_SUSPENDED		0x04
84 #define	E1000G_ERROR			0x80
85 
86 #define	JUMBO_FRAG_LENGTH		4096
87 
88 #define	LAST_RAR_ENTRY			(E1000_RAR_ENTRIES - 1)
89 #define	MAX_NUM_UNICAST_ADDRESSES	E1000_RAR_ENTRIES
90 #define	MCAST_ALLOC_SIZE		256
91 
92 /*
93  * MAX_COOKIES = max_LSO_packet_size(65535 + ethernet_header_len)/page_size
94  *	+ one for cross page split
95  * MAX_TX_DESC_PER_PACKET = MAX_COOKIES + one for the context descriptor +
96  *	two for the workaround of the 82546 chip
97  */
98 #define	MAX_COOKIES			18
99 #define	MAX_TX_DESC_PER_PACKET		21
100 
101 /*
102  * constants used in setting flow control thresholds
103  */
104 #define	E1000_PBA_MASK		0xffff
105 #define	E1000_PBA_SHIFT		10
106 #define	E1000_FC_HIGH_DIFF	0x1638 /* High: 5688 bytes below Rx FIFO size */
107 #define	E1000_FC_LOW_DIFF	0x1640 /* Low: 5696 bytes below Rx FIFO size */
108 #define	E1000_FC_PAUSE_TIME	0x0680 /* 858 usec */
109 
110 #define	MAX_NUM_TX_DESCRIPTOR		4096
111 #define	MAX_NUM_RX_DESCRIPTOR		4096
112 #define	MAX_NUM_RX_FREELIST		4096
113 #define	MAX_NUM_TX_FREELIST		4096
114 #define	MAX_RX_LIMIT_ON_INTR		4096
115 #define	MAX_RX_INTR_DELAY		65535
116 #define	MAX_RX_INTR_ABS_DELAY		65535
117 #define	MAX_TX_INTR_DELAY		65535
118 #define	MAX_TX_INTR_ABS_DELAY		65535
119 #define	MAX_INTR_THROTTLING		65535
120 #define	MAX_RX_BCOPY_THRESHOLD		E1000_RX_BUFFER_SIZE_2K
121 #define	MAX_TX_BCOPY_THRESHOLD		E1000_TX_BUFFER_SIZE_2K
122 #define	MAX_MCAST_NUM			8192
123 
124 #define	MIN_NUM_TX_DESCRIPTOR		80
125 #define	MIN_NUM_RX_DESCRIPTOR		80
126 #define	MIN_NUM_RX_FREELIST		64
127 #define	MIN_NUM_TX_FREELIST		80
128 #define	MIN_RX_LIMIT_ON_INTR		16
129 #define	MIN_RX_INTR_DELAY		0
130 #define	MIN_RX_INTR_ABS_DELAY		0
131 #define	MIN_TX_INTR_DELAY		0
132 #define	MIN_TX_INTR_ABS_DELAY		0
133 #define	MIN_INTR_THROTTLING		0
134 #define	MIN_RX_BCOPY_THRESHOLD		0
135 #define	MIN_TX_BCOPY_THRESHOLD		ETHERMIN
136 #define	MIN_MCAST_NUM			8
137 
138 #define	DEFAULT_NUM_RX_DESCRIPTOR	2048
139 #define	DEFAULT_NUM_TX_DESCRIPTOR	2048
140 #define	DEFAULT_NUM_RX_FREELIST		4096
141 #define	DEFAULT_NUM_TX_FREELIST		2304
142 #define	DEFAULT_JUMBO_NUM_RX_DESC	1024
143 #define	DEFAULT_JUMBO_NUM_TX_DESC	1024
144 #define	DEFAULT_JUMBO_NUM_RX_BUF	2048
145 #define	DEFAULT_JUMBO_NUM_TX_BUF	1152
146 #define	DEFAULT_RX_LIMIT_ON_INTR	128
147 #define	RX_FREELIST_INCREASE_SIZE	512
148 
149 #ifdef __sparc
150 #define	MAX_INTR_PER_SEC		7100
151 #define	MIN_INTR_PER_SEC		3000
152 #define	DEFAULT_INTR_PACKET_LOW		5
153 #define	DEFAULT_INTR_PACKET_HIGH	128
154 #else
155 #define	MAX_INTR_PER_SEC		15000
156 #define	MIN_INTR_PER_SEC		4000
157 #define	DEFAULT_INTR_PACKET_LOW		10
158 #define	DEFAULT_INTR_PACKET_HIGH	48
159 #endif
160 
161 #define	DEFAULT_RX_INTR_DELAY		0
162 #define	DEFAULT_RX_INTR_ABS_DELAY	64
163 #define	DEFAULT_TX_INTR_DELAY		64
164 #define	DEFAULT_TX_INTR_ABS_DELAY	64
165 #define	DEFAULT_INTR_THROTTLING_HIGH    1000000000/(MIN_INTR_PER_SEC*256)
166 #define	DEFAULT_INTR_THROTTLING_LOW	1000000000/(MAX_INTR_PER_SEC*256)
167 #define	DEFAULT_INTR_THROTTLING		DEFAULT_INTR_THROTTLING_LOW
168 
169 #define	DEFAULT_RX_BCOPY_THRESHOLD	128
170 #define	DEFAULT_TX_BCOPY_THRESHOLD	512
171 #define	DEFAULT_TX_UPDATE_THRESHOLD	256
172 #define	DEFAULT_TX_NO_RESOURCE		MAX_TX_DESC_PER_PACKET
173 
174 #define	DEFAULT_TX_INTR_ENABLE		1
175 #define	DEFAULT_FLOW_CONTROL		3
176 #define	DEFAULT_MASTER_LATENCY_TIMER	0	/* BIOS should decide */
177 						/* which is normally 0x040 */
178 #define	DEFAULT_TBI_COMPAT_ENABLE	1	/* Enable SBP workaround */
179 #define	DEFAULT_MSI_ENABLE		1	/* MSI Enable */
180 #define	DEFAULT_TX_HCKSUM_ENABLE	1	/* Hardware checksum enable */
181 #define	DEFAULT_LSO_ENABLE		1	/* LSO enable */
182 #define	DEFAULT_MEM_WORKAROUND_82546	1	/* 82546 memory workaround */
183 
184 #define	TX_DRAIN_TIME		(200)	/* # milliseconds xmit drain */
185 #define	RX_DRAIN_TIME		(200)	/* # milliseconds recv drain */
186 
187 #define	TX_STALL_TIME_2S		(200)	/* in unit of tick */
188 #define	TX_STALL_TIME_8S		(800)	/* in unit of tick */
189 
190 /*
191  * The size of the receive/transmite buffers
192  */
193 #define	E1000_RX_BUFFER_SIZE_2K		(2048)
194 #define	E1000_RX_BUFFER_SIZE_4K		(4096)
195 #define	E1000_RX_BUFFER_SIZE_8K		(8192)
196 #define	E1000_RX_BUFFER_SIZE_16K	(16384)
197 
198 #define	E1000_TX_BUFFER_SIZE_2K		(2048)
199 #define	E1000_TX_BUFFER_SIZE_4K		(4096)
200 #define	E1000_TX_BUFFER_SIZE_8K		(8192)
201 #define	E1000_TX_BUFFER_SIZE_16K	(16384)
202 
203 #define	E1000_TX_BUFFER_OEVRRUN_THRESHOLD	(2015)
204 
205 #define	E1000G_RX_NORMAL		0x0
206 #define	E1000G_RX_STOPPED		0x1
207 
208 #define	E1000G_CHAIN_NO_LIMIT		0
209 
210 /*
211  * definitions for smartspeed workaround
212  */
213 #define	  E1000_SMARTSPEED_MAX		30	/* 30 watchdog iterations */
214 						/* or 30 seconds */
215 #define	  E1000_SMARTSPEED_DOWNSHIFT	6	/* 6 watchdog iterations */
216 						/* or 6 seconds */
217 
218 /*
219  * Definitions for module_info.
220  */
221 #define	 WSNAME			"e1000g"	/* module name */
222 
223 /*
224  * Defined for IP header alignment. We also need to preserve space for
225  * VLAN tag (4 bytes)
226  */
227 #define	E1000G_IPALIGNROOM		2
228 
229 /*
230  * bit flags for 'attach_progress' which is a member variable in struct e1000g
231  */
232 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
233 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
234 #define	ATTACH_PROGRESS_SETUP		0x0004	/* Setup driver parameters */
235 #define	ATTACH_PROGRESS_ADD_INTR	0x0008	/* Interrupt added */
236 #define	ATTACH_PROGRESS_LOCKS		0x0010	/* Locks initialized */
237 #define	ATTACH_PROGRESS_SOFT_INTR	0x0020	/* Soft interrupt added */
238 #define	ATTACH_PROGRESS_KSTATS		0x0040	/* Kstats created */
239 #define	ATTACH_PROGRESS_ALLOC		0x0080	/* DMA resources allocated */
240 #define	ATTACH_PROGRESS_INIT		0x0100	/* Driver initialization */
241 /* 0200 used to be PROGRESS_NDD. Now unused */
242 #define	ATTACH_PROGRESS_MAC		0x0400	/* MAC registered */
243 #define	ATTACH_PROGRESS_ENABLE_INTR	0x0800	/* DDI interrupts enabled */
244 #define	ATTACH_PROGRESS_FMINIT		0x1000	/* FMA initiated */
245 
246 /*
247  * Speed and Duplex Settings
248  */
249 #define	GDIAG_10_HALF		1
250 #define	GDIAG_10_FULL		2
251 #define	GDIAG_100_HALF		3
252 #define	GDIAG_100_FULL		4
253 #define	GDIAG_1000_FULL		6
254 #define	GDIAG_ANY		7
255 
256 /*
257  * Coexist Workaround RP: 07/04/03
258  * 82544 Workaround : Co-existence
259  */
260 #define	MAX_TX_BUF_SIZE		(8 * 1024)
261 
262 /*
263  * Defines for Jumbo Frame
264  */
265 #define	FRAME_SIZE_UPTO_2K	2048
266 #define	FRAME_SIZE_UPTO_4K	4096
267 #define	FRAME_SIZE_UPTO_8K	8192
268 #define	FRAME_SIZE_UPTO_16K	16384
269 #define	FRAME_SIZE_UPTO_9K	9234
270 
271 #define	DEFAULT_MTU		ETHERMTU
272 #define	MAXIMUM_MTU_4K		4096
273 #define	MAXIMUM_MTU_9K		9216
274 
275 #define	DEFAULT_FRAME_SIZE	\
276 	(DEFAULT_MTU + sizeof (struct ether_vlan_header) + ETHERFCSL)
277 #define	MAXIMUM_FRAME_SIZE	\
278 	(MAXIMUM_MTU + sizeof (struct ether_vlan_header) + ETHERFCSL)
279 
280 #define	E1000_LSO_MAXLEN				65535
281 #define	E1000_LSO_FIRST_DESC_ALIGNMENT_BOUNDARY_4K	4096
282 #define	E1000_LSO_FIRST_DESC_ALIGNMENT			128
283 
284 /* Defines for Tx stall check */
285 #define	E1000G_STALL_WATCHDOG_COUNT	8
286 
287 #define	MAX_TX_LINK_DOWN_TIMEOUT	8
288 
289 /* Defines for DVMA */
290 #ifdef __sparc
291 #define	E1000G_DEFAULT_DVMA_PAGE_NUM	2
292 #endif
293 
294 /*
295  * Loopback definitions
296  */
297 #define	E1000G_LB_NONE			0
298 #define	E1000G_LB_EXTERNAL_1000		1
299 #define	E1000G_LB_EXTERNAL_100		2
300 #define	E1000G_LB_EXTERNAL_10		3
301 #define	E1000G_LB_INTERNAL_PHY		4
302 
303 /*
304  * Private dip list definitions
305  */
306 #define	E1000G_PRIV_DEVI_ATTACH	0x0
307 #define	E1000G_PRIV_DEVI_DETACH	0x1
308 
309 /*
310  * Tx descriptor LENGTH field mask
311  */
312 #define	E1000G_TBD_LENGTH_MASK		0x000fffff
313 
314 #define	E1000G_IS_VLAN_PACKET(ptr)				\
315 	((((struct ether_vlan_header *)(uintptr_t)ptr)->ether_tpid) ==	\
316 	htons(ETHERTYPE_VLAN))
317 
318 /*
319  * QUEUE_INIT_LIST -- Macro which will init ialize a queue to NULL.
320  */
321 #define	QUEUE_INIT_LIST(_LH)	\
322 	(_LH)->Flink = (_LH)->Blink = (PSINGLE_LIST_LINK)0
323 
324 /*
325  * IS_QUEUE_EMPTY -- Macro which checks to see if a queue is empty.
326  */
327 #define	IS_QUEUE_EMPTY(_LH)	\
328 	((_LH)->Flink == (PSINGLE_LIST_LINK)0)
329 
330 /*
331  * QUEUE_GET_HEAD -- Macro which returns the head of the queue, but does
332  * not remove the head from the queue.
333  */
334 #define	QUEUE_GET_HEAD(_LH)	((PSINGLE_LIST_LINK)((_LH)->Flink))
335 
336 /*
337  * QUEUE_REMOVE_HEAD -- Macro which removes the head of the head of a queue.
338  */
339 #define	QUEUE_REMOVE_HEAD(_LH)	\
340 { \
341 	PSINGLE_LIST_LINK ListElem; \
342 	if (ListElem = (_LH)->Flink) \
343 	{ \
344 		if (!((_LH)->Flink = ListElem->Flink)) \
345 			(_LH)->Blink = (PSINGLE_LIST_LINK) 0; \
346 	} \
347 }
348 
349 /*
350  * QUEUE_POP_HEAD -- Macro which  will pop the head off of a queue (list),
351  *	and return it (this differs from QUEUE_REMOVE_HEAD only in
352  *	the 1st line).
353  */
354 #define	QUEUE_POP_HEAD(_LH)	\
355 	(PSINGLE_LIST_LINK)(_LH)->Flink; \
356 	{ \
357 		PSINGLE_LIST_LINK ListElem; \
358 		ListElem = (_LH)->Flink; \
359 		if (ListElem) \
360 		{ \
361 			(_LH)->Flink = ListElem->Flink; \
362 			if (!(_LH)->Flink) \
363 				(_LH)->Blink = (PSINGLE_LIST_LINK)0; \
364 		} \
365 	}
366 
367 /*
368  * QUEUE_GET_TAIL -- Macro which returns the tail of the queue, but does not
369  *	remove the tail from the queue.
370  */
371 #define	QUEUE_GET_TAIL(_LH)	((PSINGLE_LIST_LINK)((_LH)->Blink))
372 
373 /*
374  * QUEUE_PUSH_TAIL -- Macro which puts an element at the tail (end) of the queue
375  */
376 #define	QUEUE_PUSH_TAIL(_LH, _E)	\
377 	if ((_LH)->Blink) \
378 	{ \
379 		((PSINGLE_LIST_LINK)(_LH)->Blink)->Flink = \
380 			(PSINGLE_LIST_LINK)(_E); \
381 		(_LH)->Blink = (PSINGLE_LIST_LINK)(_E); \
382 	} else { \
383 		(_LH)->Flink = \
384 			(_LH)->Blink = (PSINGLE_LIST_LINK)(_E); \
385 	} \
386 	(_E)->Flink = (PSINGLE_LIST_LINK)0;
387 
388 /*
389  * QUEUE_PUSH_HEAD -- Macro which puts an element at the head of the queue.
390  */
391 #define	QUEUE_PUSH_HEAD(_LH, _E)	\
392 	if (!((_E)->Flink = (_LH)->Flink)) \
393 	{ \
394 		(_LH)->Blink = (PSINGLE_LIST_LINK)(_E); \
395 	} \
396 	(_LH)->Flink = (PSINGLE_LIST_LINK)(_E);
397 
398 /*
399  * QUEUE_GET_NEXT -- Macro which returns the next element linked to the
400  *	current element.
401  */
402 #define	QUEUE_GET_NEXT(_LH, _E)		\
403 	(PSINGLE_LIST_LINK)((((_LH)->Blink) == (_E)) ? \
404 	(0) : ((_E)->Flink))
405 
406 /*
407  * QUEUE_APPEND -- Macro which appends a queue to the tail of another queue
408  */
409 #define	QUEUE_APPEND(_LH1, _LH2)	\
410 	if ((_LH2)->Flink) { \
411 		if ((_LH1)->Flink) { \
412 			((PSINGLE_LIST_LINK)(_LH1)->Blink)->Flink = \
413 				((PSINGLE_LIST_LINK)(_LH2)->Flink); \
414 		} else { \
415 			(_LH1)->Flink = \
416 				((PSINGLE_LIST_LINK)(_LH2)->Flink); \
417 		} \
418 		(_LH1)->Blink = ((PSINGLE_LIST_LINK)(_LH2)->Blink); \
419 	}
420 
421 
422 #define	QUEUE_SWITCH(_LH1, _LH2)					\
423 	if ((_LH2)->Flink) { 						\
424 		(_LH1)->Flink = (_LH2)->Flink;				\
425 		(_LH1)->Blink = (_LH2)->Blink;				\
426 		(_LH2)->Flink = (_LH2)->Blink = (PSINGLE_LIST_LINK)0;	\
427 	}
428 
429 /*
430  * Property lookups
431  */
432 #define	E1000G_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
433 						DDI_PROP_DONTPASS, (n))
434 #define	E1000G_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
435 						DDI_PROP_DONTPASS, (n), -1)
436 
437 #ifdef E1000G_DEBUG
438 /*
439  * E1000G-specific ioctls ...
440  */
441 #define	E1000G_IOC		((((((('E' << 4) + '1') << 4) \
442 				+ 'K') << 4) + 'G') << 4)
443 
444 /*
445  * These diagnostic IOCTLS are enabled only in DEBUG drivers
446  */
447 #define	E1000G_IOC_REG_PEEK	(E1000G_IOC | 1)
448 #define	E1000G_IOC_REG_POKE	(E1000G_IOC | 2)
449 #define	E1000G_IOC_CHIP_RESET	(E1000G_IOC | 3)
450 
451 #define	E1000G_PP_SPACE_REG	0	/* PCI memory space	*/
452 #define	E1000G_PP_SPACE_E1000G	1	/* driver's soft state	*/
453 
454 typedef struct {
455 	uint64_t pp_acc_size;	/* It's 1, 2, 4 or 8	*/
456 	uint64_t pp_acc_space;	/* See #defines below	*/
457 	uint64_t pp_acc_offset;	/* See regs definition	*/
458 	uint64_t pp_acc_data;	/* output for peek	*/
459 				/* input for poke	*/
460 } e1000g_peekpoke_t;
461 #endif	/* E1000G_DEBUG */
462 
463 /*
464  * (Internal) return values from ioctl subroutines
465  */
466 enum ioc_reply {
467 	IOC_INVAL = -1,		/* bad, NAK with EINVAL	*/
468 	IOC_DONE,		/* OK, reply sent	*/
469 	IOC_ACK,		/* OK, just send ACK	*/
470 	IOC_REPLY		/* OK, just send reply	*/
471 };
472 
473 /*
474  * Named Data (ND) Parameter Management Structure
475  */
476 typedef struct {
477 	uint32_t ndp_info;
478 	uint32_t ndp_min;
479 	uint32_t ndp_max;
480 	uint32_t ndp_val;
481 	struct e1000g *ndp_instance;
482 	char *ndp_name;
483 } nd_param_t;
484 
485 /*
486  * The entry of the private dip list
487  */
488 typedef struct _private_devi_list {
489 	dev_info_t *priv_dip;
490 	uint32_t flag;
491 	uint32_t pending_rx_count;
492 	struct _private_devi_list *prev;
493 	struct _private_devi_list *next;
494 } private_devi_list_t;
495 
496 /*
497  * A structure that points to the next entry in the queue.
498  */
499 typedef struct _SINGLE_LIST_LINK {
500 	struct _SINGLE_LIST_LINK *Flink;
501 } SINGLE_LIST_LINK, *PSINGLE_LIST_LINK;
502 
503 /*
504  * A "ListHead" structure that points to the head and tail of a queue
505  */
506 typedef struct _LIST_DESCRIBER {
507 	struct _SINGLE_LIST_LINK *volatile Flink;
508 	struct _SINGLE_LIST_LINK *volatile Blink;
509 } LIST_DESCRIBER, *PLIST_DESCRIBER;
510 
511 enum e1000g_bar_type {
512 	E1000G_BAR_CONFIG = 0,
513 	E1000G_BAR_IO,
514 	E1000G_BAR_MEM32,
515 	E1000G_BAR_MEM64
516 };
517 
518 typedef struct {
519 	enum e1000g_bar_type type;
520 	int rnumber;
521 } bar_info_t;
522 
523 /*
524  * Address-Length pair structure that stores descriptor info
525  */
526 typedef struct _sw_desc {
527 	uint64_t address;
528 	uint32_t length;
529 } sw_desc_t, *p_sw_desc_t;
530 
531 typedef struct _desc_array {
532 	sw_desc_t descriptor[4];
533 	uint32_t elements;
534 } desc_array_t, *p_desc_array_t;
535 
536 typedef enum {
537 	USE_NONE,
538 	USE_BCOPY,
539 	USE_DVMA,
540 	USE_DMA
541 } dma_type_t;
542 
543 typedef struct _dma_buffer {
544 	caddr_t address;
545 	uint64_t dma_address;
546 	ddi_acc_handle_t acc_handle;
547 	ddi_dma_handle_t dma_handle;
548 	size_t size;
549 	size_t len;
550 } dma_buffer_t, *p_dma_buffer_t;
551 
552 /*
553  * Transmit Control Block (TCB), Ndis equiv of SWPacket This
554  * structure stores the additional information that is
555  * associated with every packet to be transmitted. It stores the
556  * message block pointer and the TBD addresses associated with
557  * the m_blk and also the link to the next tcb in the chain
558  */
559 typedef struct _tx_sw_packet {
560 	/* Link to the next tx_sw_packet in the list */
561 	SINGLE_LIST_LINK Link;
562 	mblk_t *mp;
563 	uint32_t num_desc;
564 	uint32_t num_mblk_frag;
565 	dma_type_t dma_type;
566 	dma_type_t data_transfer_type;
567 	ddi_dma_handle_t tx_dma_handle;
568 	dma_buffer_t tx_buf[1];
569 	sw_desc_t desc[MAX_TX_DESC_PER_PACKET];
570 	int64_t tickstamp;
571 } tx_sw_packet_t, *p_tx_sw_packet_t;
572 
573 /*
574  * This structure is similar to the rx_sw_packet structure used
575  * for Ndis. This structure stores information about the 2k
576  * aligned receive buffer into which the FX1000 DMA's frames.
577  * This structure is maintained as a linked list of many
578  * receiver buffer pointers.
579  */
580 typedef struct _rx_sw_packet {
581 	/* Link to the next rx_sw_packet_t in the list */
582 	SINGLE_LIST_LINK Link;
583 	struct _rx_sw_packet *next;
584 	uint32_t ref_cnt;
585 	mblk_t *mp;
586 	caddr_t rx_data;
587 	dma_type_t dma_type;
588 	frtn_t free_rtn;
589 	dma_buffer_t rx_buf[1];
590 } rx_sw_packet_t, *p_rx_sw_packet_t;
591 
592 typedef struct _mblk_list {
593 	mblk_t *head;
594 	mblk_t *tail;
595 } mblk_list_t, *p_mblk_list_t;
596 
597 typedef struct _context_data {
598 	uint32_t ether_header_size;
599 	uint32_t cksum_flags;
600 	uint32_t cksum_start;
601 	uint32_t cksum_stuff;
602 	uint16_t mss;
603 	uint8_t hdr_len;
604 	uint32_t pay_len;
605 	boolean_t lso_flag;
606 } context_data_t;
607 
608 typedef union _e1000g_ether_addr {
609 	struct {
610 		uint32_t high;
611 		uint32_t low;
612 	} reg;
613 	struct {
614 		uint8_t set;
615 		uint8_t redundant;
616 		uint8_t addr[ETHERADDRL];
617 	} mac;
618 } e1000g_ether_addr_t;
619 
620 typedef struct _e1000g_stat {
621 
622 	kstat_named_t link_speed;	/* Link Speed */
623 	kstat_named_t reset_count;	/* Reset Count */
624 
625 	kstat_named_t rx_error;		/* Rx Error in Packet */
626 	kstat_named_t rx_allocb_fail;	/* Rx Allocb Failure */
627 	kstat_named_t rx_size_error;	/* Rx Size Error */
628 
629 	kstat_named_t tx_no_desc;	/* Tx No Desc */
630 	kstat_named_t tx_no_swpkt;	/* Tx No Pkt Buffer */
631 	kstat_named_t tx_send_fail;	/* Tx SendPkt Failure */
632 	kstat_named_t tx_over_size;	/* Tx Pkt Too Long */
633 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
634 
635 #ifdef E1000G_DEBUG
636 	kstat_named_t rx_none;		/* Rx No Incoming Data */
637 	kstat_named_t rx_multi_desc;	/* Rx Multi Spanned Pkt */
638 	kstat_named_t rx_no_freepkt;	/* Rx No Free Pkt */
639 	kstat_named_t rx_avail_freepkt;	/* Rx Freelist Avail Buffers */
640 
641 	kstat_named_t tx_under_size;	/* Tx Packet Under Size */
642 	kstat_named_t tx_empty_frags;	/* Tx Empty Frags */
643 	kstat_named_t tx_exceed_frags;	/* Tx Exceed Max Frags */
644 	kstat_named_t tx_recycle;	/* Tx Recycle */
645 	kstat_named_t tx_recycle_intr;	/* Tx Recycle in Intr */
646 	kstat_named_t tx_recycle_retry;	/* Tx Recycle Retry */
647 	kstat_named_t tx_recycle_none;	/* Tx No Desc Recycled */
648 	kstat_named_t tx_copy;		/* Tx Send Copy */
649 	kstat_named_t tx_bind;		/* Tx Send Bind */
650 	kstat_named_t tx_multi_copy;	/* Tx Copy Multi Fragments */
651 	kstat_named_t tx_multi_cookie;	/* Tx Pkt Span Multi Cookies */
652 	kstat_named_t tx_lack_desc;	/* Tx Lack of Desc */
653 #endif
654 
655 	kstat_named_t Crcerrs;	/* CRC Error Count */
656 	kstat_named_t Symerrs;	/* Symbol Error Count */
657 	kstat_named_t Mpc;	/* Missed Packet Count */
658 	kstat_named_t Scc;	/* Single Collision Count */
659 	kstat_named_t Ecol;	/* Excessive Collision Count */
660 	kstat_named_t Mcc;	/* Multiple Collision Count */
661 	kstat_named_t Latecol;	/* Late Collision Count */
662 	kstat_named_t Colc;	/* Collision Count */
663 	kstat_named_t Dc;	/* Defer Count */
664 	kstat_named_t Sec;	/* Sequence Error Count */
665 	kstat_named_t Rlec;	/* Receive Length Error Count */
666 	kstat_named_t Xonrxc;	/* XON Received Count */
667 	kstat_named_t Xontxc;	/* XON Xmitted Count */
668 	kstat_named_t Xoffrxc;	/* XOFF Received Count */
669 	kstat_named_t Xofftxc;	/* Xoff Xmitted Count */
670 	kstat_named_t Fcruc;	/* Unknown Flow Conrol Packet Rcvd Count */
671 #ifdef E1000G_DEBUG
672 	kstat_named_t Prc64;	/* Packets Received - 64b */
673 	kstat_named_t Prc127;	/* Packets Received - 65-127b */
674 	kstat_named_t Prc255;	/* Packets Received - 127-255b */
675 	kstat_named_t Prc511;	/* Packets Received - 256-511b */
676 	kstat_named_t Prc1023;	/* Packets Received - 511-1023b */
677 	kstat_named_t Prc1522;	/* Packets Received - 1024-1522b */
678 #endif
679 	kstat_named_t Gprc;	/* Good Packets Received Count */
680 	kstat_named_t Bprc;	/* Broadcasts Pkts Received Count */
681 	kstat_named_t Mprc;	/* Multicast Pkts Received Count */
682 	kstat_named_t Gptc;	/* Good Packets Xmitted Count */
683 	kstat_named_t Gorl;	/* Good Octets Recvd Lo Count */
684 	kstat_named_t Gorh;	/* Good Octets Recvd Hi Count */
685 	kstat_named_t Gotl;	/* Good Octets Xmitd Lo Count */
686 	kstat_named_t Goth;	/* Good Octets Xmitd Hi Count */
687 	kstat_named_t Rnbc;	/* Receive No Buffers Count */
688 	kstat_named_t Ruc;	/* Receive Undersize Count */
689 	kstat_named_t Rfc;	/* Receive Frag Count */
690 	kstat_named_t Roc;	/* Receive Oversize Count */
691 	kstat_named_t Rjc;	/* Receive Jabber Count */
692 	kstat_named_t Torl;	/* Total Octets Recvd Lo Count */
693 	kstat_named_t Torh;	/* Total Octets Recvd Hi Count */
694 	kstat_named_t Totl;	/* Total Octets Xmted Lo Count */
695 	kstat_named_t Toth;	/* Total Octets Xmted Hi Count */
696 	kstat_named_t Tpr;	/* Total Packets Received */
697 	kstat_named_t Tpt;	/* Total Packets Xmitted */
698 #ifdef E1000G_DEBUG
699 	kstat_named_t Ptc64;	/* Packets Xmitted (64b) */
700 	kstat_named_t Ptc127;	/* Packets Xmitted (64-127b) */
701 	kstat_named_t Ptc255;	/* Packets Xmitted (128-255b) */
702 	kstat_named_t Ptc511;	/* Packets Xmitted (255-511b) */
703 	kstat_named_t Ptc1023;	/* Packets Xmitted (512-1023b) */
704 	kstat_named_t Ptc1522;	/* Packets Xmitted (1024-1522b */
705 #endif
706 	kstat_named_t Mptc;	/* Multicast Packets Xmited Count */
707 	kstat_named_t Bptc;	/* Broadcast Packets Xmited Count */
708 	kstat_named_t Algnerrc;	/* Alignment Error count */
709 	kstat_named_t Tuc;	/* Transmit Underrun count */
710 	kstat_named_t Rxerrc;	/* Rx Error Count */
711 	kstat_named_t Tncrs;	/* Transmit with no CRS */
712 	kstat_named_t Cexterr;	/* Carrier Extension Error count */
713 	kstat_named_t Rutec;	/* Receive DMA too Early count */
714 	kstat_named_t Tsctc;	/* TCP seg contexts xmit count */
715 	kstat_named_t Tsctfc;	/* TCP seg contexts xmit fail count */
716 } e1000g_stat_t, *p_e1000g_stat_t;
717 
718 typedef struct _e1000g_tx_ring {
719 	kmutex_t tx_lock;
720 	kmutex_t freelist_lock;
721 	kmutex_t usedlist_lock;
722 	/*
723 	 * Descriptor queue definitions
724 	 */
725 	ddi_dma_handle_t tbd_dma_handle;
726 	ddi_acc_handle_t tbd_acc_handle;
727 	struct e1000_tx_desc *tbd_area;
728 	uint64_t tbd_dma_addr;
729 	struct e1000_tx_desc *tbd_first;
730 	struct e1000_tx_desc *tbd_last;
731 	struct e1000_tx_desc *tbd_oldest;
732 	struct e1000_tx_desc *tbd_next;
733 	uint32_t tbd_avail;
734 	/*
735 	 * Software packet structures definitions
736 	 */
737 	p_tx_sw_packet_t packet_area;
738 	LIST_DESCRIBER used_list;
739 	LIST_DESCRIBER free_list;
740 	/*
741 	 * TCP/UDP Context Data Information
742 	 */
743 	context_data_t pre_context;
744 	/*
745 	 * Timer definitions for 82547
746 	 */
747 	timeout_id_t timer_id_82547;
748 	boolean_t timer_enable_82547;
749 	/*
750 	 * reschedule when tx resource is available
751 	 */
752 	boolean_t resched_needed;
753 	clock_t resched_timestamp;
754 	mblk_list_t mblks;
755 	/*
756 	 * Statistics
757 	 */
758 	uint32_t stat_no_swpkt;
759 	uint32_t stat_no_desc;
760 	uint32_t stat_send_fail;
761 	uint32_t stat_reschedule;
762 	uint32_t stat_timer_reschedule;
763 	uint32_t stat_over_size;
764 #ifdef E1000G_DEBUG
765 	uint32_t stat_under_size;
766 	uint32_t stat_exceed_frags;
767 	uint32_t stat_empty_frags;
768 	uint32_t stat_recycle;
769 	uint32_t stat_recycle_intr;
770 	uint32_t stat_recycle_retry;
771 	uint32_t stat_recycle_none;
772 	uint32_t stat_copy;
773 	uint32_t stat_bind;
774 	uint32_t stat_multi_copy;
775 	uint32_t stat_multi_cookie;
776 	uint32_t stat_lack_desc;
777 	uint32_t stat_lso_header_fail;
778 #endif
779 	/*
780 	 * Pointer to the adapter
781 	 */
782 	struct e1000g *adapter;
783 } e1000g_tx_ring_t, *pe1000g_tx_ring_t;
784 
785 typedef struct _e1000g_rx_data {
786 	kmutex_t freelist_lock;
787 	kmutex_t recycle_lock;
788 	/*
789 	 * Descriptor queue definitions
790 	 */
791 	ddi_dma_handle_t rbd_dma_handle;
792 	ddi_acc_handle_t rbd_acc_handle;
793 	struct e1000_rx_desc *rbd_area;
794 	uint64_t rbd_dma_addr;
795 	struct e1000_rx_desc *rbd_first;
796 	struct e1000_rx_desc *rbd_last;
797 	struct e1000_rx_desc *rbd_next;
798 	/*
799 	 * Software packet structures definitions
800 	 */
801 	p_rx_sw_packet_t packet_area;
802 	LIST_DESCRIBER recv_list;
803 	LIST_DESCRIBER free_list;
804 	LIST_DESCRIBER recycle_list;
805 	uint32_t flag;
806 
807 	uint32_t pending_count;
808 	uint32_t avail_freepkt;
809 	uint32_t recycle_freepkt;
810 	uint32_t rx_mblk_len;
811 	mblk_t *rx_mblk;
812 	mblk_t *rx_mblk_tail;
813 
814 	private_devi_list_t *priv_devi_node;
815 	struct _e1000g_rx_ring *rx_ring;
816 } e1000g_rx_data_t;
817 
818 typedef struct _e1000g_rx_ring {
819 	e1000g_rx_data_t *rx_data;
820 
821 	kmutex_t rx_lock;
822 
823 	mac_ring_handle_t mrh;
824 	mac_ring_handle_t mrh_init;
825 	uint64_t ring_gen_num;
826 	boolean_t poll_flag;
827 
828 	/*
829 	 * Statistics
830 	 */
831 	uint32_t stat_error;
832 	uint32_t stat_allocb_fail;
833 	uint32_t stat_exceed_pkt;
834 	uint32_t stat_size_error;
835 	uint32_t stat_crc_only_pkt;
836 #ifdef E1000G_DEBUG
837 	uint32_t stat_none;
838 	uint32_t stat_multi_desc;
839 	uint32_t stat_no_freepkt;
840 #endif
841 	/*
842 	 * Pointer to the adapter
843 	 */
844 	struct e1000g *adapter;
845 } e1000g_rx_ring_t, *pe1000g_rx_ring_t;
846 
847 typedef struct e1000g {
848 	int instance;
849 	dev_info_t *dip;
850 	dev_info_t *priv_dip;
851 	private_devi_list_t *priv_devi_node;
852 	mac_handle_t mh;
853 	mac_resource_handle_t mrh;
854 	struct e1000_hw shared;
855 	struct e1000g_osdep osdep;
856 
857 	uint32_t e1000g_state;
858 	boolean_t e1000g_promisc;
859 	boolean_t strip_crc;
860 	boolean_t rx_buffer_setup;
861 	boolean_t esb2_workaround;
862 	link_state_t link_state;
863 	uint32_t link_speed;
864 	uint32_t link_duplex;
865 	uint32_t master_latency_timer;
866 	uint32_t smartspeed;	/* smartspeed w/a counter */
867 	uint32_t init_count;
868 	uint32_t reset_count;
869 	boolean_t reset_flag;
870 	uint32_t stall_threshold;
871 	boolean_t stall_flag;
872 	uint32_t attach_progress;	/* attach tracking */
873 	uint32_t loopback_mode;
874 	uint32_t pending_rx_count;
875 
876 	uint32_t tx_desc_num;
877 	uint32_t tx_freelist_num;
878 	uint32_t rx_desc_num;
879 	uint32_t rx_freelist_num;
880 	uint32_t rx_freelist_limit;
881 	uint32_t tx_buffer_size;
882 	uint32_t rx_buffer_size;
883 
884 	uint32_t tx_link_down_timeout;
885 	uint32_t tx_bcopy_thresh;
886 	uint32_t rx_limit_onintr;
887 	uint32_t rx_bcopy_thresh;
888 	uint32_t rx_buf_align;
889 	uint32_t desc_align;
890 
891 	boolean_t intr_adaptive;
892 	boolean_t tx_intr_enable;
893 	uint32_t tx_intr_delay;
894 	uint32_t tx_intr_abs_delay;
895 	uint32_t rx_intr_delay;
896 	uint32_t rx_intr_abs_delay;
897 	uint32_t intr_throttling_rate;
898 
899 	uint32_t	tx_desc_num_flag:1,
900 			rx_desc_num_flag:1,
901 			tx_buf_num_flag:1,
902 			rx_buf_num_flag:1,
903 			pad_to_32:28;
904 
905 	uint32_t default_mtu;
906 	uint32_t max_mtu;
907 	uint32_t max_frame_size;
908 	uint32_t min_frame_size;
909 
910 	boolean_t watchdog_timer_enabled;
911 	boolean_t watchdog_timer_started;
912 	timeout_id_t watchdog_tid;
913 	boolean_t link_complete;
914 	timeout_id_t link_tid;
915 
916 	e1000g_rx_ring_t rx_ring[1];
917 	e1000g_tx_ring_t tx_ring[1];
918 	mac_group_handle_t rx_group;
919 
920 	/*
921 	 * Rx and Tx packet count for interrupt adaptive setting
922 	 */
923 	uint32_t rx_pkt_cnt;
924 	uint32_t tx_pkt_cnt;
925 
926 	/*
927 	 * The watchdog_lock must be held when updateing the
928 	 * timeout fields in struct e1000g, that is,
929 	 * watchdog_tid, watchdog_timer_started.
930 	 */
931 	kmutex_t watchdog_lock;
932 	/*
933 	 * The link_lock protects the link_complete and link_tid
934 	 * fields in struct e1000g.
935 	 */
936 	kmutex_t link_lock;
937 	/*
938 	 * The chip_lock assures that the Rx/Tx process must be
939 	 * stopped while other functions change the hardware
940 	 * configuration of e1000g card, such as e1000g_reset(),
941 	 * e1000g_reset_hw() etc are executed.
942 	 */
943 	krwlock_t chip_lock;
944 
945 	boolean_t unicst_init;
946 	uint32_t unicst_avail;
947 	uint32_t unicst_total;
948 	e1000g_ether_addr_t unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
949 
950 	uint32_t mcast_count;
951 	uint32_t mcast_max_num;
952 	uint32_t mcast_alloc_count;
953 	struct ether_addr *mcast_table;
954 
955 	ulong_t sys_page_sz;
956 #ifdef __sparc
957 	uint_t dvma_page_num;
958 #endif
959 
960 	boolean_t msi_enable;
961 	boolean_t tx_hcksum_enable;
962 	boolean_t lso_enable;
963 	boolean_t lso_premature_issue;
964 	boolean_t mem_workaround_82546;
965 	int intr_type;
966 	int intr_cnt;
967 	int intr_cap;
968 	size_t intr_size;
969 	uint_t intr_pri;
970 	ddi_intr_handle_t *htable;
971 
972 	int tx_softint_pri;
973 	ddi_softint_handle_t tx_softint_handle;
974 
975 	kstat_t *e1000g_ksp;
976 
977 	boolean_t poll_mode;
978 
979 	uint16_t phy_ctrl;		/* contents of PHY_CTRL */
980 	uint16_t phy_status;		/* contents of PHY_STATUS */
981 	uint16_t phy_an_adv;		/* contents of PHY_AUTONEG_ADV */
982 	uint16_t phy_an_exp;		/* contents of PHY_AUTONEG_EXP */
983 	uint16_t phy_ext_status;	/* contents of PHY_EXT_STATUS */
984 	uint16_t phy_1000t_ctrl;	/* contents of PHY_1000T_CTRL */
985 	uint16_t phy_1000t_status;	/* contents of PHY_1000T_STATUS */
986 	uint16_t phy_lp_able;		/* contents of PHY_LP_ABILITY */
987 
988 	/*
989 	 * FMA capabilities
990 	 */
991 	int fm_capabilities;
992 
993 	uint32_t	param_en_1000fdx:1,
994 			param_en_1000hdx:1,
995 			param_en_100fdx:1,
996 			param_en_100hdx:1,
997 			param_en_10fdx:1,
998 			param_en_10hdx:1,
999 			param_autoneg_cap:1,
1000 			param_pause_cap:1,
1001 			param_asym_pause_cap:1,
1002 			param_1000fdx_cap:1,
1003 			param_1000hdx_cap:1,
1004 			param_100t4_cap:1,
1005 			param_100fdx_cap:1,
1006 			param_100hdx_cap:1,
1007 			param_10fdx_cap:1,
1008 			param_10hdx_cap:1,
1009 			param_adv_autoneg:1,
1010 			param_adv_pause:1,
1011 			param_adv_asym_pause:1,
1012 			param_adv_1000fdx:1,
1013 			param_adv_1000hdx:1,
1014 			param_adv_100t4:1,
1015 			param_adv_100fdx:1,
1016 			param_adv_100hdx:1,
1017 			param_adv_10fdx:1,
1018 			param_adv_10hdx:1,
1019 			param_lp_autoneg:1,
1020 			param_lp_pause:1,
1021 			param_lp_asym_pause:1,
1022 			param_lp_1000fdx:1,
1023 			param_lp_1000hdx:1,
1024 			param_lp_100t4:1;
1025 
1026 	uint32_t	param_lp_100fdx:1,
1027 			param_lp_100hdx:1,
1028 			param_lp_10fdx:1,
1029 			param_lp_10hdx:1,
1030 			param_pad_to_32:28;
1031 
1032 } e1000g_t;
1033 
1034 
1035 /*
1036  * Function prototypes
1037  */
1038 void e1000g_free_priv_devi_node(private_devi_list_t *devi_node);
1039 void e1000g_free_rx_pending_buffers(e1000g_rx_data_t *rx_data);
1040 void e1000g_free_rx_data(e1000g_rx_data_t *rx_data);
1041 int e1000g_alloc_dma_resources(struct e1000g *Adapter);
1042 void e1000g_release_dma_resources(struct e1000g *Adapter);
1043 void e1000g_free_rx_sw_packet(p_rx_sw_packet_t packet, boolean_t full_release);
1044 void e1000g_tx_setup(struct e1000g *Adapter);
1045 void e1000g_rx_setup(struct e1000g *Adapter);
1046 int e1000g_increase_rx_packets(e1000g_rx_data_t *rx_data);
1047 
1048 int e1000g_recycle(e1000g_tx_ring_t *tx_ring);
1049 void e1000g_free_tx_swpkt(p_tx_sw_packet_t packet);
1050 void e1000g_tx_freemsg(e1000g_tx_ring_t *tx_ring);
1051 uint_t e1000g_tx_softint_worker(caddr_t arg1, caddr_t arg2);
1052 mblk_t *e1000g_m_tx(void *arg, mblk_t *mp);
1053 mblk_t *e1000g_receive(e1000g_rx_ring_t *rx_ring, mblk_t **tail, uint_t sz);
1054 void e1000g_rxfree_func(p_rx_sw_packet_t packet);
1055 
1056 int e1000g_m_stat(void *arg, uint_t stat, uint64_t *val);
1057 int e1000g_init_stats(struct e1000g *Adapter);
1058 int e1000g_rx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
1059 void e1000_tbi_adjust_stats(struct e1000g *Adapter,
1060     uint32_t frame_len, uint8_t *mac_addr);
1061 
1062 void e1000g_clear_interrupt(struct e1000g *Adapter);
1063 void e1000g_mask_interrupt(struct e1000g *Adapter);
1064 void e1000g_clear_all_interrupts(struct e1000g *Adapter);
1065 void e1000g_clear_tx_interrupt(struct e1000g *Adapter);
1066 void e1000g_mask_tx_interrupt(struct e1000g *Adapter);
1067 void phy_spd_state(struct e1000_hw *hw, boolean_t enable);
1068 void e1000_destroy_hw_mutex(struct e1000_hw *hw);
1069 void e1000_enable_pciex_master(struct e1000_hw *hw);
1070 int e1000g_check_acc_handle(ddi_acc_handle_t handle);
1071 int e1000g_check_dma_handle(ddi_dma_handle_t handle);
1072 void e1000g_fm_ereport(struct e1000g *Adapter, char *detail);
1073 void e1000g_set_fma_flags(int dma_flag);
1074 int e1000g_reset_link(struct e1000g *Adapter);
1075 
1076 /*
1077  * Global variables
1078  */
1079 extern boolean_t e1000g_force_detach;
1080 extern uint32_t e1000g_mblks_pending;
1081 extern kmutex_t e1000g_rx_detach_lock;
1082 extern private_devi_list_t *e1000g_private_devi_list;
1083 extern int e1000g_poll_mode;
1084 
1085 #ifdef __cplusplus
1086 }
1087 #endif
1088 
1089 #endif	/* _E1000G_SW_H */
1090