xref: /titanic_51/usr/src/uts/common/io/igb/igb_sw.h (revision ac7f5757903d7806e03e59f71c10eec36e0deade)
1 /*
2  * CDDL HEADER START
3  *
4  * Copyright(c) 2007-2009 Intel Corporation. All rights reserved.
5  * The contents of this file are subject to the terms of the
6  * Common Development and Distribution License (the "License").
7  * You may not use this file except in compliance with the License.
8  *
9  * You can obtain a copy of the license at:
10  *	http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When using or redistributing this file, you may do so under the
15  * License only. No other modification of this header is permitted.
16  *
17  * If applicable, add the following below this CDDL HEADER, with the
18  * fields enclosed by brackets "[]" replaced with your own identifying
19  * information: Portions Copyright [yyyy] [name of copyright owner]
20  *
21  * CDDL HEADER END
22  */
23 
24 /*
25  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
26  * Use is subject to license terms.
27  */
28 
29 #ifndef	_IGB_SW_H
30 #define	_IGB_SW_H
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
36 #include <sys/types.h>
37 #include <sys/conf.h>
38 #include <sys/debug.h>
39 #include <sys/stropts.h>
40 #include <sys/stream.h>
41 #include <sys/strsun.h>
42 #include <sys/strlog.h>
43 #include <sys/kmem.h>
44 #include <sys/stat.h>
45 #include <sys/kstat.h>
46 #include <sys/modctl.h>
47 #include <sys/errno.h>
48 #include <sys/dlpi.h>
49 #include <sys/mac_provider.h>
50 #include <sys/mac_ether.h>
51 #include <sys/vlan.h>
52 #include <sys/ddi.h>
53 #include <sys/sunddi.h>
54 #include <sys/pci.h>
55 #include <sys/pcie.h>
56 #include <sys/sdt.h>
57 #include <sys/ethernet.h>
58 #include <sys/pattr.h>
59 #include <sys/strsubr.h>
60 #include <sys/netlb.h>
61 #include <sys/random.h>
62 #include <inet/common.h>
63 #include <inet/tcp.h>
64 #include <inet/ip.h>
65 #include <inet/mi.h>
66 #include <inet/nd.h>
67 #include <sys/ddifm.h>
68 #include <sys/fm/protocol.h>
69 #include <sys/fm/util.h>
70 #include <sys/fm/io/ddi.h>
71 #include "igb_api.h"
72 #include "igb_82575.h"
73 
74 
75 #define	MODULE_NAME			"igb"	/* module name */
76 
77 #define	IGB_SUCCESS			DDI_SUCCESS
78 #define	IGB_FAILURE			DDI_FAILURE
79 
80 #define	IGB_UNKNOWN			0x00
81 #define	IGB_INITIALIZED			0x01
82 #define	IGB_STARTED			0x02
83 #define	IGB_SUSPENDED			0x04
84 #define	IGB_STALL			0x08
85 #define	IGB_ERROR			0x80
86 
87 #define	IGB_RX_STOPPED			0x1
88 
89 #define	IGB_INTR_NONE			0
90 #define	IGB_INTR_MSIX			1
91 #define	IGB_INTR_MSI			2
92 #define	IGB_INTR_LEGACY			3
93 
94 #define	IGB_ADAPTER_REGSET		1	/* mapping adapter registers */
95 #define	IGB_ADAPTER_MSIXTAB		4	/* mapping msi-x table */
96 
97 #define	IGB_NO_POLL			-1
98 #define	IGB_NO_FREE_SLOT		-1
99 
100 #define	MAX_NUM_UNICAST_ADDRESSES	E1000_RAR_ENTRIES
101 #define	MCAST_ALLOC_COUNT		256
102 #define	MAX_COOKIE			18
103 #define	MIN_NUM_TX_DESC			2
104 
105 /*
106  * Number of settings for interrupt throttle rate (ITR).  There is one of
107  * these per msi-x vector and it needs to be the maximum of all silicon
108  * types supported by this driver.
109  */
110 #define	MAX_NUM_EITR			25
111 
112 /*
113  * Maximum values for user configurable parameters
114  */
115 #define	MAX_TX_RING_SIZE		4096
116 #define	MAX_RX_RING_SIZE		4096
117 #define	MAX_RX_GROUP_NUM		4
118 
119 #define	MAX_MTU				9000
120 #define	MAX_RX_LIMIT_PER_INTR		4096
121 
122 #define	MAX_RX_COPY_THRESHOLD		9216
123 #define	MAX_TX_COPY_THRESHOLD		9216
124 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
125 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
126 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
127 #define	MAX_MCAST_NUM			8192
128 
129 /*
130  * Minimum values for user configurable parameters
131  */
132 #define	MIN_TX_RING_SIZE		64
133 #define	MIN_RX_RING_SIZE		64
134 #define	MIN_RX_GROUP_NUM		1
135 
136 #define	MIN_MTU				ETHERMIN
137 #define	MIN_RX_LIMIT_PER_INTR		16
138 
139 #define	MIN_RX_COPY_THRESHOLD		0
140 #define	MIN_TX_COPY_THRESHOLD		0
141 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
142 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
143 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
144 #define	MIN_MCAST_NUM			8
145 
146 /*
147  * Default values for user configurable parameters
148  */
149 #define	DEFAULT_TX_RING_SIZE		512
150 #define	DEFAULT_RX_RING_SIZE		512
151 #define	DEFAULT_RX_GROUP_NUM		1
152 
153 #define	DEFAULT_MTU			ETHERMTU
154 #define	DEFAULT_RX_LIMIT_PER_INTR	256
155 
156 #define	DEFAULT_RX_COPY_THRESHOLD	128
157 #define	DEFAULT_TX_COPY_THRESHOLD	512
158 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
159 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
160 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
161 #define	DEFAULT_MCAST_NUM		4096
162 
163 #define	IGB_LSO_MAXLEN			65535
164 
165 #define	TX_DRAIN_TIME			200
166 #define	RX_DRAIN_TIME			200
167 
168 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
169 #define	MAX_LINK_DOWN_TIMEOUT		8	/* 8 seconds */
170 
171 /*
172  * Defined for IP header alignment.
173  */
174 #define	IPHDR_ALIGN_ROOM		2
175 
176 /*
177  * Bit flags for attach_progress
178  */
179 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
180 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
181 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
182 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
183 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
184 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
185 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
186 #define	ATTACH_PROGRESS_INIT_ADAPTER	0x0080	/* Adapter initialized */
187 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
188 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
189 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
190 #define	ATTACH_PROGRESS_FMINIT		0x2000	/* FMA initialized */
191 
192 #define	PROP_ADV_AUTONEG_CAP		"adv_autoneg_cap"
193 #define	PROP_ADV_1000FDX_CAP		"adv_1000fdx_cap"
194 #define	PROP_ADV_1000HDX_CAP		"adv_1000hdx_cap"
195 #define	PROP_ADV_100FDX_CAP		"adv_100fdx_cap"
196 #define	PROP_ADV_100HDX_CAP		"adv_100hdx_cap"
197 #define	PROP_ADV_10FDX_CAP		"adv_10fdx_cap"
198 #define	PROP_ADV_10HDX_CAP		"adv_10hdx_cap"
199 #define	PROP_DEFAULT_MTU		"default_mtu"
200 #define	PROP_FLOW_CONTROL		"flow_control"
201 #define	PROP_TX_RING_SIZE		"tx_ring_size"
202 #define	PROP_RX_RING_SIZE		"rx_ring_size"
203 #define	PROP_MR_ENABLE			"mr_enable"
204 #define	PROP_RX_GROUP_NUM		"rx_group_number"
205 
206 #define	PROP_INTR_FORCE			"intr_force"
207 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
208 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
209 #define	PROP_LSO_ENABLE			"lso_enable"
210 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
211 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
212 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
213 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
214 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
215 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
216 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
217 #define	PROP_INTR_THROTTLING		"intr_throttling"
218 #define	PROP_MCAST_MAX_NUM		"mcast_max_num"
219 
220 #define	IGB_LB_NONE			0
221 #define	IGB_LB_EXTERNAL			1
222 #define	IGB_LB_INTERNAL_MAC		2
223 #define	IGB_LB_INTERNAL_PHY		3
224 #define	IGB_LB_INTERNAL_SERDES		4
225 
226 enum ioc_reply {
227 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
228 	IOC_DONE, 	/* OK, reply sent */
229 	IOC_ACK,	/* OK, just send ACK */
230 	IOC_REPLY	/* OK, just send reply */
231 };
232 
233 /*
234  * For s/w context extraction from a tx frame
235  */
236 #define	TX_CXT_SUCCESS		0
237 #define	TX_CXT_E_LSO_CSUM	(-1)
238 #define	TX_CXT_E_ETHER_TYPE	(-2)
239 
240 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
241 				    0, 0, (flag)))
242 
243 /*
244  * Defined for ring index operations
245  * ASSERT(index < limit)
246  * ASSERT(step < limit)
247  * ASSERT(index1 < limit)
248  * ASSERT(index2 < limit)
249  */
250 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
251 	(index) + (step) : (index) + (step) - (limit))
252 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
253 	(index) - (step) : (index) + (limit) - (step))
254 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
255 	(index2) - (index1) : (index2) + (limit) - (index1))
256 
257 #define	LINK_LIST_INIT(_LH)	\
258 	(_LH)->head = (_LH)->tail = NULL
259 
260 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
261 
262 #define	LIST_POP_HEAD(_LH)	\
263 	(single_link_t *)(_LH)->head; \
264 	{ \
265 		if ((_LH)->head != NULL) { \
266 			(_LH)->head = (_LH)->head->link; \
267 			if ((_LH)->head == NULL) \
268 				(_LH)->tail = NULL; \
269 		} \
270 	}
271 
272 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
273 
274 #define	LIST_PUSH_TAIL(_LH, _E)	\
275 	if ((_LH)->tail != NULL) { \
276 		(_LH)->tail->link = (single_link_t *)(_E); \
277 		(_LH)->tail = (single_link_t *)(_E); \
278 	} else { \
279 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
280 	} \
281 	(_E)->link = NULL;
282 
283 #define	LIST_GET_NEXT(_LH, _E)		\
284 	(((_LH)->tail == (single_link_t *)(_E)) ? \
285 	NULL : ((single_link_t *)(_E))->link)
286 
287 
288 typedef struct single_link {
289 	struct single_link	*link;
290 } single_link_t;
291 
292 typedef struct link_list {
293 	single_link_t		*head;
294 	single_link_t		*tail;
295 } link_list_t;
296 
297 /*
298  * Property lookups
299  */
300 #define	IGB_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
301 				    DDI_PROP_DONTPASS, (n))
302 #define	IGB_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
303 				    DDI_PROP_DONTPASS, (n), -1)
304 
305 
306 /* capability/feature flags */
307 #define	IGB_FLAG_HAS_DCA	(1 << 0) /* has Direct Cache Access */
308 #define	IGB_FLAG_VMDQ_POOL	(1 << 1) /* has vmdq capability */
309 #define	IGB_FLAG_NEED_CTX_IDX	(1 << 2) /* context descriptor needs index */
310 
311 /* function pointer for nic-specific functions */
312 typedef void (*igb_nic_func_t)(struct igb *);
313 
314 /* adapter-specific info for each supported device type */
315 typedef struct adapter_info {
316 	/* limits */
317 	uint32_t	max_rx_que_num;	/* maximum number of rx queues */
318 	uint32_t	min_rx_que_num;	/* minimum number of rx queues */
319 	uint32_t	def_rx_que_num;	/* default number of rx queues */
320 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
321 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
322 	uint32_t	def_tx_que_num;	/* default number of tx queues */
323 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
324 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
325 	uint32_t	def_intr_throttle; /* default interrupt throttle */
326 	/* function pointers */
327 	igb_nic_func_t	enable_intr;	/* enable adapter interrupts */
328 	igb_nic_func_t	setup_msix;	/* set up msi-x vectors */
329 	/* capabilities */
330 	uint32_t	flags;		/* capability flags */
331 	uint32_t	rxdctl_mask;	/* mask for RXDCTL register */
332 } adapter_info_t;
333 
334 typedef union igb_ether_addr {
335 	struct {
336 		uint32_t	high;
337 		uint32_t	low;
338 	} reg;
339 	struct {
340 		uint8_t		set;
341 		uint8_t		group_index;
342 		uint8_t		addr[ETHERADDRL];
343 	} mac;
344 } igb_ether_addr_t;
345 
346 typedef enum {
347 	USE_NONE,
348 	USE_COPY,
349 	USE_DMA
350 } tx_type_t;
351 
352 typedef struct tx_context {
353 	uint32_t		hcksum_flags;
354 	uint32_t		ip_hdr_len;
355 	uint32_t		mac_hdr_len;
356 	uint32_t		l4_proto;
357 	uint32_t		mss;
358 	uint32_t		l4_hdr_len;
359 	boolean_t		lso_flag;
360 } tx_context_t;
361 
362 /* Hold address/length of each DMA segment */
363 typedef struct sw_desc {
364 	uint64_t		address;
365 	size_t			length;
366 } sw_desc_t;
367 
368 /* Handles and addresses of DMA buffer */
369 typedef struct dma_buffer {
370 	caddr_t			address;	/* Virtual address */
371 	uint64_t		dma_address;	/* DMA (Hardware) address */
372 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
373 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
374 	size_t			size;		/* Buffer size */
375 	size_t			len;		/* Data length in the buffer */
376 } dma_buffer_t;
377 
378 /*
379  * Tx Control Block
380  */
381 typedef struct tx_control_block {
382 	single_link_t		link;
383 	uint32_t		frag_num;
384 	uint32_t		desc_num;
385 	mblk_t			*mp;
386 	tx_type_t		tx_type;
387 	ddi_dma_handle_t	tx_dma_handle;
388 	dma_buffer_t		tx_buf;
389 	sw_desc_t		desc[MAX_COOKIE];
390 } tx_control_block_t;
391 
392 /*
393  * RX Control Block
394  */
395 typedef struct rx_control_block {
396 	mblk_t			*mp;
397 	uint32_t		ref_cnt;
398 	dma_buffer_t		rx_buf;
399 	frtn_t			free_rtn;
400 	struct igb_rx_data	*rx_data;
401 } rx_control_block_t;
402 
403 /*
404  * Software Data Structure for Tx Ring
405  */
406 typedef struct igb_tx_ring {
407 	uint32_t		index;	/* Ring index */
408 	uint32_t		intr_vector;	/* Interrupt vector index */
409 
410 	/*
411 	 * Mutexes
412 	 */
413 	kmutex_t		tx_lock;
414 	kmutex_t		recycle_lock;
415 	kmutex_t		tcb_head_lock;
416 	kmutex_t		tcb_tail_lock;
417 
418 	/*
419 	 * Tx descriptor ring definitions
420 	 */
421 	dma_buffer_t		tbd_area;
422 	union e1000_adv_tx_desc	*tbd_ring;
423 	uint32_t		tbd_head; /* Index of next tbd to recycle */
424 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
425 	uint32_t		tbd_free; /* Number of free tbd */
426 
427 	/*
428 	 * Tx control block list definitions
429 	 */
430 	tx_control_block_t	*tcb_area;
431 	tx_control_block_t	**work_list;
432 	tx_control_block_t	**free_list;
433 	uint32_t		tcb_head; /* Head index of free list */
434 	uint32_t		tcb_tail; /* Tail index of free list */
435 	uint32_t		tcb_free; /* Number of free tcb in free list */
436 
437 	uint32_t		*tbd_head_wb; /* Head write-back */
438 	uint32_t		(*tx_recycle)(struct igb_tx_ring *);
439 
440 	/*
441 	 * s/w context structure for TCP/UDP checksum offload and LSO.
442 	 */
443 	tx_context_t		tx_context;
444 
445 	/*
446 	 * Tx ring settings and status
447 	 */
448 	uint32_t		ring_size; /* Tx descriptor ring size */
449 	uint32_t		free_list_size;	/* Tx free list size */
450 
451 	boolean_t		reschedule;
452 	uint32_t		recycle_fail;
453 	uint32_t		stall_watchdog;
454 
455 #ifdef IGB_DEBUG
456 	/*
457 	 * Debug statistics
458 	 */
459 	uint32_t		stat_overload;
460 	uint32_t		stat_fail_no_tbd;
461 	uint32_t		stat_fail_no_tcb;
462 	uint32_t		stat_fail_dma_bind;
463 	uint32_t		stat_reschedule;
464 	uint32_t		stat_pkt_cnt;
465 #endif
466 
467 	/*
468 	 * Pointer to the igb struct
469 	 */
470 	struct igb		*igb;
471 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
472 } igb_tx_ring_t;
473 
474 /*
475  * Software Receive Ring
476  */
477 typedef struct igb_rx_data {
478 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
479 
480 	/*
481 	 * Rx descriptor ring definitions
482 	 */
483 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
484 	union e1000_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
485 	uint32_t		rbd_next;	/* Index of next rx desc */
486 
487 	/*
488 	 * Rx control block list definitions
489 	 */
490 	rx_control_block_t	*rcb_area;
491 	rx_control_block_t	**work_list;	/* Work list of rcbs */
492 	rx_control_block_t	**free_list;	/* Free list of rcbs */
493 	uint32_t		rcb_head;	/* Index of next free rcb */
494 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
495 	uint32_t		rcb_free;	/* Number of free rcbs */
496 
497 	/*
498 	 * Rx sw ring settings and status
499 	 */
500 	uint32_t		ring_size;	/* Rx descriptor ring size */
501 	uint32_t		free_list_size;	/* Rx free list size */
502 
503 	uint32_t		rcb_pending;
504 	uint32_t		flag;
505 
506 	struct igb_rx_ring	*rx_ring;	/* Pointer to rx ring */
507 } igb_rx_data_t;
508 
509 /*
510  * Software Data Structure for Rx Ring
511  */
512 typedef struct igb_rx_ring {
513 	uint32_t		index;		/* Ring index */
514 	uint32_t		intr_vector;	/* Interrupt vector index */
515 
516 	igb_rx_data_t		*rx_data;	/* Rx software ring */
517 
518 	kmutex_t		rx_lock;	/* Rx access lock */
519 
520 #ifdef IGB_DEBUG
521 	/*
522 	 * Debug statistics
523 	 */
524 	uint32_t		stat_frame_error;
525 	uint32_t		stat_cksum_error;
526 	uint32_t		stat_exceed_pkt;
527 	uint32_t		stat_pkt_cnt;
528 #endif
529 
530 	struct igb		*igb;		/* Pointer to igb struct */
531 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
532 	uint32_t		group_index;	/* group index */
533 	uint64_t		ring_gen_num;
534 } igb_rx_ring_t;
535 
536 /*
537  * Software Receive Ring Group
538  */
539 typedef struct igb_rx_group {
540 	uint32_t		index;		/* Group index */
541 	mac_group_handle_t	group_handle;   /* call back group handle */
542 	struct igb		*igb;		/* Pointer to igb struct */
543 } igb_rx_group_t;
544 
545 typedef struct igb {
546 	int 			instance;
547 	mac_handle_t		mac_hdl;
548 	dev_info_t		*dip;
549 	struct e1000_hw		hw;
550 	struct igb_osdep	osdep;
551 
552 	adapter_info_t		*capab;		/* adapter capabilities */
553 
554 	uint32_t		igb_state;
555 	link_state_t		link_state;
556 	uint32_t		link_speed;
557 	uint32_t		link_duplex;
558 	uint32_t		link_down_timeout;
559 	boolean_t		link_complete;
560 	timeout_id_t		link_tid;
561 
562 	uint32_t		reset_count;
563 	uint32_t		attach_progress;
564 	uint32_t		loopback_mode;
565 	uint32_t		default_mtu;
566 	uint32_t		max_frame_size;
567 	uint32_t		dout_sync;
568 
569 	uint32_t		rcb_pending;
570 
571 	uint32_t		mr_enable;	/* Enable multiple rings */
572 	uint32_t		vmdq_mode;	/* Mode of VMDq */
573 
574 	/*
575 	 * Receive Rings and Groups
576 	 */
577 	igb_rx_ring_t		*rx_rings;	/* Array of rx rings */
578 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
579 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
580 	uint32_t		rx_buf_size;	/* Rx buffer size */
581 	igb_rx_group_t		*rx_groups;	/* Array of rx groups */
582 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
583 
584 	/*
585 	 * Transmit Rings
586 	 */
587 	igb_tx_ring_t		*tx_rings;	/* Array of tx rings */
588 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
589 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
590 	uint32_t		tx_buf_size;	/* Tx buffer size */
591 
592 	boolean_t		tx_ring_init;
593 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
594 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
595 	boolean_t 		lso_enable; 	/* Large Segment Offload */
596 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
597 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
598 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
599 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
600 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
601 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
602 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
603 
604 	uint32_t		intr_throttling[MAX_NUM_EITR];
605 	uint32_t		intr_force;
606 
607 	int			intr_type;
608 	int			intr_cnt;
609 	int			intr_cap;
610 	size_t			intr_size;
611 	uint_t			intr_pri;
612 	ddi_intr_handle_t	*htable;
613 	uint32_t		eims_mask;
614 	uint32_t		ims_mask;
615 
616 	kmutex_t		gen_lock; /* General lock for device access */
617 	kmutex_t		watchdog_lock;
618 	kmutex_t		link_lock;
619 	kmutex_t		rx_pending_lock;
620 
621 	boolean_t		watchdog_enable;
622 	boolean_t		watchdog_start;
623 	timeout_id_t		watchdog_tid;
624 
625 	boolean_t		unicst_init;
626 	uint32_t		unicst_avail;
627 	uint32_t		unicst_total;
628 	igb_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
629 	uint32_t		mcast_count;
630 	uint32_t		mcast_alloc_count;
631 	uint32_t		mcast_max_num;
632 	struct ether_addr	*mcast_table;
633 
634 	/*
635 	 * Kstat definitions
636 	 */
637 	kstat_t			*igb_ks;
638 
639 	uint32_t		param_en_1000fdx_cap:1,
640 				param_en_1000hdx_cap:1,
641 				param_en_100t4_cap:1,
642 				param_en_100fdx_cap:1,
643 				param_en_100hdx_cap:1,
644 				param_en_10fdx_cap:1,
645 				param_en_10hdx_cap:1,
646 				param_1000fdx_cap:1,
647 				param_1000hdx_cap:1,
648 				param_100t4_cap:1,
649 				param_100fdx_cap:1,
650 				param_100hdx_cap:1,
651 				param_10fdx_cap:1,
652 				param_10hdx_cap:1,
653 				param_autoneg_cap:1,
654 				param_pause_cap:1,
655 				param_asym_pause_cap:1,
656 				param_rem_fault:1,
657 				param_adv_1000fdx_cap:1,
658 				param_adv_1000hdx_cap:1,
659 				param_adv_100t4_cap:1,
660 				param_adv_100fdx_cap:1,
661 				param_adv_100hdx_cap:1,
662 				param_adv_10fdx_cap:1,
663 				param_adv_10hdx_cap:1,
664 				param_adv_autoneg_cap:1,
665 				param_adv_pause_cap:1,
666 				param_adv_asym_pause_cap:1,
667 				param_adv_rem_fault:1,
668 				param_lp_1000fdx_cap:1,
669 				param_lp_1000hdx_cap:1,
670 				param_lp_100t4_cap:1;
671 
672 	uint32_t		param_lp_100fdx_cap:1,
673 				param_lp_100hdx_cap:1,
674 				param_lp_10fdx_cap:1,
675 				param_lp_10hdx_cap:1,
676 				param_lp_autoneg_cap:1,
677 				param_lp_pause_cap:1,
678 				param_lp_asym_pause_cap:1,
679 				param_lp_rem_fault:1,
680 				param_pad_to_32:24;
681 
682 	/*
683 	 * FMA capabilities
684 	 */
685 	int			fm_capabilities;
686 
687 	ulong_t			page_size;
688 } igb_t;
689 
690 typedef struct igb_stat {
691 
692 	kstat_named_t link_speed;	/* Link Speed */
693 	kstat_named_t reset_count;	/* Reset Count */
694 	kstat_named_t dout_sync;	/* DMA out of sync */
695 #ifdef IGB_DEBUG
696 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
697 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
698 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
699 
700 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
701 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
702 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
703 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
704 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
705 
706 	kstat_named_t gprc;	/* Good Packets Received Count */
707 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
708 	kstat_named_t gor;	/* Good Octets Received Count */
709 	kstat_named_t got;	/* Good Octets Xmitd Count */
710 	kstat_named_t prc64;	/* Packets Received - 64b */
711 	kstat_named_t prc127;	/* Packets Received - 65-127b */
712 	kstat_named_t prc255;	/* Packets Received - 127-255b */
713 	kstat_named_t prc511;	/* Packets Received - 256-511b */
714 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
715 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
716 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
717 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
718 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
719 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
720 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
721 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
722 #endif
723 	kstat_named_t crcerrs;	/* CRC Error Count */
724 	kstat_named_t symerrs;	/* Symbol Error Count */
725 	kstat_named_t mpc;	/* Missed Packet Count */
726 	kstat_named_t scc;	/* Single Collision Count */
727 	kstat_named_t ecol;	/* Excessive Collision Count */
728 	kstat_named_t mcc;	/* Multiple Collision Count */
729 	kstat_named_t latecol;	/* Late Collision Count */
730 	kstat_named_t colc;	/* Collision Count */
731 	kstat_named_t dc;	/* Defer Count */
732 	kstat_named_t sec;	/* Sequence Error Count */
733 	kstat_named_t rlec;	/* Receive Length Error Count */
734 	kstat_named_t xonrxc;	/* XON Received Count */
735 	kstat_named_t xontxc;	/* XON Xmitted Count */
736 	kstat_named_t xoffrxc;	/* XOFF Received Count */
737 	kstat_named_t xofftxc;	/* Xoff Xmitted Count */
738 	kstat_named_t fcruc;	/* Unknown Flow Conrol Packet Rcvd Count */
739 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
740 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
741 	kstat_named_t rnbc;	/* Receive No Buffers Count */
742 	kstat_named_t ruc;	/* Receive Undersize Count */
743 	kstat_named_t rfc;	/* Receive Frag Count */
744 	kstat_named_t roc;	/* Receive Oversize Count */
745 	kstat_named_t rjc;	/* Receive Jabber Count */
746 	kstat_named_t tor;	/* Total Octets Recvd Count */
747 	kstat_named_t tot;	/* Total Octets Xmted Count */
748 	kstat_named_t tpr;	/* Total Packets Received */
749 	kstat_named_t tpt;	/* Total Packets Xmitted */
750 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
751 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
752 	kstat_named_t algnerrc;	/* Alignment Error count */
753 	kstat_named_t rxerrc;	/* Rx Error Count */
754 	kstat_named_t tncrs;	/* Transmit with no CRS */
755 	kstat_named_t cexterr;	/* Carrier Extension Error count */
756 	kstat_named_t tsctc;	/* TCP seg contexts xmit count */
757 	kstat_named_t tsctfc;	/* TCP seg contexts xmit fail count */
758 } igb_stat_t;
759 
760 /*
761  * Function prototypes in e1000_osdep.c
762  */
763 void e1000_write_pci_cfg(struct e1000_hw *, uint32_t, uint16_t *);
764 void e1000_read_pci_cfg(struct e1000_hw *, uint32_t, uint16_t *);
765 int32_t e1000_read_pcie_cap_reg(struct e1000_hw *, uint32_t, uint16_t *);
766 int32_t e1000_write_pcie_cap_reg(struct e1000_hw *, uint32_t, uint16_t *);
767 void e1000_rar_clear(struct e1000_hw *, uint32_t);
768 void e1000_rar_set_vmdq(struct e1000_hw *, const uint8_t *, uint32_t,
769     uint32_t, uint8_t);
770 
771 /*
772  * Function prototypes in igb_buf.c
773  */
774 int igb_alloc_dma(igb_t *);
775 void igb_free_dma(igb_t *);
776 void igb_free_dma_buffer(dma_buffer_t *);
777 int igb_alloc_rx_ring_data(igb_rx_ring_t *rx_ring);
778 void igb_free_rx_ring_data(igb_rx_data_t *rx_data);
779 
780 /*
781  * Function prototypes in igb_main.c
782  */
783 int igb_start(igb_t *, boolean_t);
784 void igb_stop(igb_t *, boolean_t);
785 int igb_setup_link(igb_t *, boolean_t);
786 int igb_unicst_find(igb_t *, const uint8_t *);
787 int igb_unicst_set(igb_t *, const uint8_t *, int);
788 int igb_multicst_add(igb_t *, const uint8_t *);
789 int igb_multicst_remove(igb_t *, const uint8_t *);
790 enum ioc_reply igb_loopback_ioctl(igb_t *, struct iocblk *, mblk_t *);
791 void igb_enable_watchdog_timer(igb_t *);
792 void igb_disable_watchdog_timer(igb_t *);
793 int igb_atomic_reserve(uint32_t *, uint32_t);
794 int igb_check_acc_handle(ddi_acc_handle_t);
795 int igb_check_dma_handle(ddi_dma_handle_t);
796 void igb_fm_ereport(igb_t *, char *);
797 void igb_set_fma_flags(int);
798 
799 /*
800  * Function prototypes in igb_gld.c
801  */
802 int igb_m_start(void *);
803 void igb_m_stop(void *);
804 int igb_m_promisc(void *, boolean_t);
805 int igb_m_multicst(void *, boolean_t, const uint8_t *);
806 int igb_m_unicst(void *, const uint8_t *);
807 int igb_m_stat(void *, uint_t, uint64_t *);
808 void igb_m_resources(void *);
809 void igb_m_ioctl(void *, queue_t *, mblk_t *);
810 boolean_t igb_m_getcapab(void *, mac_capab_t, void *);
811 void igb_fill_ring(void *, mac_ring_type_t, const int, const int,
812     mac_ring_info_t *, mac_ring_handle_t);
813 int igb_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
814 int igb_m_getprop(void *, const char *, mac_prop_id_t,
815     uint_t, uint_t, void *, uint_t *);
816 int igb_set_priv_prop(igb_t *, const char *, uint_t, const void *);
817 int igb_get_priv_prop(igb_t *, const char *,
818     uint_t, uint_t, void *, uint_t *);
819 boolean_t igb_param_locked(mac_prop_id_t);
820 void igb_fill_group(void *arg, mac_ring_type_t, const int,
821     mac_group_info_t *, mac_group_handle_t);
822 int igb_rx_ring_intr_enable(mac_intr_handle_t);
823 int igb_rx_ring_intr_disable(mac_intr_handle_t);
824 int igb_get_def_val(igb_t *, mac_prop_id_t, uint_t, void *);
825 
826 /*
827  * Function prototypes in igb_rx.c
828  */
829 mblk_t *igb_rx(igb_rx_ring_t *, int);
830 void igb_rx_recycle(caddr_t arg);
831 
832 /*
833  * Function prototypes in igb_tx.c
834  */
835 void igb_free_tcb(tx_control_block_t *);
836 void igb_put_free_list(igb_tx_ring_t *, link_list_t *);
837 uint32_t igb_tx_recycle_legacy(igb_tx_ring_t *);
838 uint32_t igb_tx_recycle_head_wb(igb_tx_ring_t *);
839 
840 /*
841  * Function prototypes in igb_log.c
842  */
843 void igb_notice(void *, const char *, ...);
844 void igb_log(void *, const char *, ...);
845 void igb_error(void *, const char *, ...);
846 
847 /*
848  * Function prototypes in igb_stat.c
849  */
850 int igb_init_stats(igb_t *);
851 
852 mblk_t *igb_rx_ring_poll(void *, int);
853 mblk_t *igb_tx_ring_send(void *, mblk_t *);
854 
855 #ifdef __cplusplus
856 }
857 #endif
858 
859 #endif /* _IGB_SW_H */
860