xref: /titanic_52/usr/src/uts/common/io/igb/igb_sw.h (revision 494f7e12a62129ef191a15f9dfde6b7abe3bf510)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright(c) 2007-2010 Intel Corporation. All rights reserved.
24  */
25 
26 /*
27  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
28  */
29 
30 #ifndef	_IGB_SW_H
31 #define	_IGB_SW_H
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 #include <sys/types.h>
38 #include <sys/conf.h>
39 #include <sys/debug.h>
40 #include <sys/stropts.h>
41 #include <sys/stream.h>
42 #include <sys/strsun.h>
43 #include <sys/strlog.h>
44 #include <sys/kmem.h>
45 #include <sys/stat.h>
46 #include <sys/kstat.h>
47 #include <sys/modctl.h>
48 #include <sys/errno.h>
49 #include <sys/dlpi.h>
50 #include <sys/mac_provider.h>
51 #include <sys/mac_ether.h>
52 #include <sys/vlan.h>
53 #include <sys/ddi.h>
54 #include <sys/sunddi.h>
55 #include <sys/pci.h>
56 #include <sys/pcie.h>
57 #include <sys/sdt.h>
58 #include <sys/ethernet.h>
59 #include <sys/pattr.h>
60 #include <sys/strsubr.h>
61 #include <sys/netlb.h>
62 #include <sys/random.h>
63 #include <inet/common.h>
64 #include <inet/tcp.h>
65 #include <inet/ip.h>
66 #include <inet/mi.h>
67 #include <inet/nd.h>
68 #include <sys/ddifm.h>
69 #include <sys/fm/protocol.h>
70 #include <sys/fm/util.h>
71 #include <sys/fm/io/ddi.h>
72 #include "igb_api.h"
73 #include "igb_82575.h"
74 
75 
76 #define	MODULE_NAME			"igb"	/* module name */
77 
78 #define	IGB_SUCCESS			DDI_SUCCESS
79 #define	IGB_FAILURE			DDI_FAILURE
80 
81 #define	IGB_UNKNOWN			0x00
82 #define	IGB_INITIALIZED			0x01
83 #define	IGB_STARTED			0x02
84 #define	IGB_SUSPENDED			0x04
85 #define	IGB_STALL			0x08
86 #define	IGB_ERROR			0x80
87 
88 #define	IGB_RX_STOPPED			0x1
89 
90 #define	IGB_INTR_NONE			0
91 #define	IGB_INTR_MSIX			1
92 #define	IGB_INTR_MSI			2
93 #define	IGB_INTR_LEGACY			3
94 
95 #define	IGB_ADAPTER_REGSET		1	/* mapping adapter registers */
96 #define	IGB_ADAPTER_MSIXTAB		4	/* mapping msi-x table */
97 
98 #define	IGB_NO_POLL			-1
99 #define	IGB_NO_FREE_SLOT		-1
100 
101 #define	MAX_NUM_UNICAST_ADDRESSES	E1000_RAR_ENTRIES
102 #define	MCAST_ALLOC_COUNT		256
103 #define	MAX_COOKIE			18
104 #define	MIN_NUM_TX_DESC			2
105 
106 /*
107  * Number of settings for interrupt throttle rate (ITR).  There is one of
108  * these per msi-x vector and it needs to be the maximum of all silicon
109  * types supported by this driver.
110  */
111 #define	MAX_NUM_EITR			25
112 
113 /*
114  * Maximum values for user configurable parameters
115  */
116 #define	MAX_TX_RING_SIZE		4096
117 #define	MAX_RX_RING_SIZE		4096
118 #define	MAX_RX_GROUP_NUM		4
119 
120 #define	MAX_MTU				9000
121 #define	MAX_RX_LIMIT_PER_INTR		4096
122 
123 #define	MAX_RX_COPY_THRESHOLD		9216
124 #define	MAX_TX_COPY_THRESHOLD		9216
125 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
126 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
127 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
128 #define	MAX_MCAST_NUM			8192
129 
130 /*
131  * Minimum values for user configurable parameters
132  */
133 #define	MIN_TX_RING_SIZE		64
134 #define	MIN_RX_RING_SIZE		64
135 #define	MIN_RX_GROUP_NUM		1
136 
137 #define	MIN_MTU				ETHERMIN
138 #define	MIN_RX_LIMIT_PER_INTR		16
139 
140 #define	MIN_RX_COPY_THRESHOLD		0
141 #define	MIN_TX_COPY_THRESHOLD		0
142 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
143 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
144 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
145 #define	MIN_MCAST_NUM			8
146 
147 /*
148  * Default values for user configurable parameters
149  */
150 #define	DEFAULT_TX_RING_SIZE		512
151 #define	DEFAULT_RX_RING_SIZE		512
152 #define	DEFAULT_RX_GROUP_NUM		1
153 
154 #define	DEFAULT_MTU			ETHERMTU
155 #define	DEFAULT_RX_LIMIT_PER_INTR	256
156 
157 #define	DEFAULT_RX_COPY_THRESHOLD	128
158 #define	DEFAULT_TX_COPY_THRESHOLD	512
159 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
160 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
161 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
162 #define	DEFAULT_TX_RESCHED_THRESHOLD_LOW	32
163 #define	DEFAULT_MCAST_NUM		4096
164 
165 #define	IGB_LSO_MAXLEN			65535
166 
167 #define	TX_DRAIN_TIME			200
168 #define	RX_DRAIN_TIME			200
169 
170 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
171 
172 /*
173  * Defined for IP header alignment.
174  */
175 #define	IPHDR_ALIGN_ROOM		2
176 
177 /*
178  * Bit flags for attach_progress
179  */
180 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
181 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
182 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
183 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
184 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
185 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
186 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
187 #define	ATTACH_PROGRESS_INIT_ADAPTER	0x0080	/* Adapter initialized */
188 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
189 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
190 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
191 #define	ATTACH_PROGRESS_FMINIT		0x2000	/* FMA initialized */
192 
193 #define	PROP_ADV_AUTONEG_CAP		"adv_autoneg_cap"
194 #define	PROP_ADV_1000FDX_CAP		"adv_1000fdx_cap"
195 #define	PROP_ADV_1000HDX_CAP		"adv_1000hdx_cap"
196 #define	PROP_ADV_100FDX_CAP		"adv_100fdx_cap"
197 #define	PROP_ADV_100HDX_CAP		"adv_100hdx_cap"
198 #define	PROP_ADV_10FDX_CAP		"adv_10fdx_cap"
199 #define	PROP_ADV_10HDX_CAP		"adv_10hdx_cap"
200 #define	PROP_DEFAULT_MTU		"default_mtu"
201 #define	PROP_FLOW_CONTROL		"flow_control"
202 #define	PROP_TX_RING_SIZE		"tx_ring_size"
203 #define	PROP_RX_RING_SIZE		"rx_ring_size"
204 #define	PROP_MR_ENABLE			"mr_enable"
205 #define	PROP_RX_GROUP_NUM		"rx_group_number"
206 
207 #define	PROP_INTR_FORCE			"intr_force"
208 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
209 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
210 #define	PROP_LSO_ENABLE			"lso_enable"
211 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
212 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
213 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
214 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
215 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
216 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
217 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
218 #define	PROP_INTR_THROTTLING		"intr_throttling"
219 #define	PROP_MCAST_MAX_NUM		"mcast_max_num"
220 
221 #define	IGB_LB_NONE			0
222 #define	IGB_LB_EXTERNAL			1
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		last_index;
384 	uint32_t		frag_num;
385 	uint32_t		desc_num;
386 	mblk_t			*mp;
387 	tx_type_t		tx_type;
388 	ddi_dma_handle_t	tx_dma_handle;
389 	dma_buffer_t		tx_buf;
390 	sw_desc_t		desc[MAX_COOKIE];
391 } tx_control_block_t;
392 
393 /*
394  * RX Control Block
395  */
396 typedef struct rx_control_block {
397 	mblk_t			*mp;
398 	uint32_t		ref_cnt;
399 	dma_buffer_t		rx_buf;
400 	frtn_t			free_rtn;
401 	struct igb_rx_data	*rx_data;
402 } rx_control_block_t;
403 
404 /*
405  * Software Data Structure for Tx Ring
406  */
407 typedef struct igb_tx_ring {
408 	uint32_t		index;	/* Ring index */
409 	uint32_t		intr_vector;	/* Interrupt vector index */
410 
411 	/*
412 	 * Mutexes
413 	 */
414 	kmutex_t		tx_lock;
415 	kmutex_t		recycle_lock;
416 	kmutex_t		tcb_head_lock;
417 	kmutex_t		tcb_tail_lock;
418 
419 	/*
420 	 * Tx descriptor ring definitions
421 	 */
422 	dma_buffer_t		tbd_area;
423 	union e1000_adv_tx_desc	*tbd_ring;
424 	uint32_t		tbd_head; /* Index of next tbd to recycle */
425 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
426 	uint32_t		tbd_free; /* Number of free tbd */
427 
428 	/*
429 	 * Tx control block list definitions
430 	 */
431 	tx_control_block_t	*tcb_area;
432 	tx_control_block_t	**work_list;
433 	tx_control_block_t	**free_list;
434 	uint32_t		tcb_head; /* Head index of free list */
435 	uint32_t		tcb_tail; /* Tail index of free list */
436 	uint32_t		tcb_free; /* Number of free tcb in free list */
437 
438 	uint32_t		*tbd_head_wb; /* Head write-back */
439 	uint32_t		(*tx_recycle)(struct igb_tx_ring *);
440 
441 	/*
442 	 * s/w context structure for TCP/UDP checksum offload and LSO.
443 	 */
444 	tx_context_t		tx_context;
445 
446 	/*
447 	 * Tx ring settings and status
448 	 */
449 	uint32_t		ring_size; /* Tx descriptor ring size */
450 	uint32_t		free_list_size;	/* Tx free list size */
451 
452 	boolean_t		reschedule;
453 	uint32_t		recycle_fail;
454 	uint32_t		stall_watchdog;
455 
456 	/*
457 	 * Per-ring statistics
458 	 */
459 	uint64_t		tx_pkts;	/* Packets Transmitted Count */
460 	uint64_t		tx_bytes;	/* Bytes Transmitted Count */
461 
462 #ifdef IGB_DEBUG
463 	/*
464 	 * Debug statistics
465 	 */
466 	uint32_t		stat_overload;
467 	uint32_t		stat_fail_no_tbd;
468 	uint32_t		stat_fail_no_tcb;
469 	uint32_t		stat_fail_dma_bind;
470 	uint32_t		stat_reschedule;
471 	uint32_t		stat_pkt_cnt;
472 #endif
473 
474 	/*
475 	 * Pointer to the igb struct
476 	 */
477 	struct igb		*igb;
478 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
479 } igb_tx_ring_t;
480 
481 /*
482  * Software Receive Ring
483  */
484 typedef struct igb_rx_data {
485 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
486 
487 	/*
488 	 * Rx descriptor ring definitions
489 	 */
490 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
491 	union e1000_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
492 	uint32_t		rbd_next;	/* Index of next rx desc */
493 
494 	/*
495 	 * Rx control block list definitions
496 	 */
497 	rx_control_block_t	*rcb_area;
498 	rx_control_block_t	**work_list;	/* Work list of rcbs */
499 	rx_control_block_t	**free_list;	/* Free list of rcbs */
500 	uint32_t		rcb_head;	/* Index of next free rcb */
501 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
502 	uint32_t		rcb_free;	/* Number of free rcbs */
503 
504 	/*
505 	 * Rx sw ring settings and status
506 	 */
507 	uint32_t		ring_size;	/* Rx descriptor ring size */
508 	uint32_t		free_list_size;	/* Rx free list size */
509 
510 	uint32_t		rcb_pending;
511 	uint32_t		flag;
512 
513 	struct igb_rx_ring	*rx_ring;	/* Pointer to rx ring */
514 } igb_rx_data_t;
515 
516 /*
517  * Software Data Structure for Rx Ring
518  */
519 typedef struct igb_rx_ring {
520 	uint32_t		index;		/* Ring index */
521 	uint32_t		intr_vector;	/* Interrupt vector index */
522 
523 	igb_rx_data_t		*rx_data;	/* Rx software ring */
524 
525 	kmutex_t		rx_lock;	/* Rx access lock */
526 
527 	/*
528 	 * Per-ring statistics
529 	 */
530 	uint64_t		rx_pkts;	/* Packets Received Count */
531 	uint64_t		rx_bytes;	/* Bytes Received Count */
532 
533 #ifdef IGB_DEBUG
534 	/*
535 	 * Debug statistics
536 	 */
537 	uint32_t		stat_frame_error;
538 	uint32_t		stat_cksum_error;
539 	uint32_t		stat_exceed_pkt;
540 	uint32_t		stat_pkt_cnt;
541 #endif
542 
543 	struct igb		*igb;		/* Pointer to igb struct */
544 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
545 	uint32_t		group_index;	/* group index */
546 	uint64_t		ring_gen_num;
547 } igb_rx_ring_t;
548 
549 /*
550  * Software Receive Ring Group
551  */
552 typedef struct igb_rx_group {
553 	uint32_t		index;		/* Group index */
554 	mac_group_handle_t	group_handle;   /* call back group handle */
555 	struct igb		*igb;		/* Pointer to igb struct */
556 } igb_rx_group_t;
557 
558 typedef struct igb {
559 	int 			instance;
560 	mac_handle_t		mac_hdl;
561 	dev_info_t		*dip;
562 	struct e1000_hw		hw;
563 	struct igb_osdep	osdep;
564 
565 	adapter_info_t		*capab;		/* adapter capabilities */
566 
567 	uint32_t		igb_state;
568 	link_state_t		link_state;
569 	uint32_t		link_speed;
570 	uint32_t		link_duplex;
571 	boolean_t		link_complete;
572 	timeout_id_t		link_tid;
573 
574 	uint32_t		reset_count;
575 	uint32_t		attach_progress;
576 	uint32_t		loopback_mode;
577 	uint32_t		default_mtu;
578 	uint32_t		max_frame_size;
579 	uint32_t		dout_sync;
580 
581 	uint32_t		rcb_pending;
582 
583 	uint32_t		mr_enable;	/* Enable multiple rings */
584 	uint32_t		vmdq_mode;	/* Mode of VMDq */
585 
586 	/*
587 	 * Receive Rings and Groups
588 	 */
589 	igb_rx_ring_t		*rx_rings;	/* Array of rx rings */
590 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
591 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
592 	uint32_t		rx_buf_size;	/* Rx buffer size */
593 	igb_rx_group_t		*rx_groups;	/* Array of rx groups */
594 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
595 
596 	/*
597 	 * Transmit Rings
598 	 */
599 	igb_tx_ring_t		*tx_rings;	/* Array of tx rings */
600 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
601 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
602 	uint32_t		tx_buf_size;	/* Tx buffer size */
603 
604 	boolean_t		tx_ring_init;
605 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
606 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
607 	boolean_t 		lso_enable; 	/* Large Segment Offload */
608 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
609 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
610 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
611 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
612 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
613 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
614 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
615 
616 	uint32_t		intr_throttling[MAX_NUM_EITR];
617 	uint32_t		intr_force;
618 
619 	int			intr_type;
620 	int			intr_cnt;
621 	int			intr_cap;
622 	size_t			intr_size;
623 	uint_t			intr_pri;
624 	ddi_intr_handle_t	*htable;
625 	uint32_t		eims_mask;
626 	uint32_t		ims_mask;
627 
628 	kmutex_t		gen_lock; /* General lock for device access */
629 	kmutex_t		watchdog_lock;
630 	kmutex_t		link_lock;
631 	kmutex_t		rx_pending_lock;
632 
633 	boolean_t		watchdog_enable;
634 	boolean_t		watchdog_start;
635 	timeout_id_t		watchdog_tid;
636 
637 	boolean_t		unicst_init;
638 	uint32_t		unicst_avail;
639 	uint32_t		unicst_total;
640 	igb_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
641 	uint32_t		mcast_count;
642 	uint32_t		mcast_alloc_count;
643 	uint32_t		mcast_max_num;
644 	struct ether_addr	*mcast_table;
645 
646 	/*
647 	 * Kstat definitions
648 	 */
649 	kstat_t			*igb_ks;
650 
651 	uint32_t		param_en_1000fdx_cap:1,
652 				param_en_1000hdx_cap:1,
653 				param_en_100t4_cap:1,
654 				param_en_100fdx_cap:1,
655 				param_en_100hdx_cap:1,
656 				param_en_10fdx_cap:1,
657 				param_en_10hdx_cap:1,
658 				param_1000fdx_cap:1,
659 				param_1000hdx_cap:1,
660 				param_100t4_cap:1,
661 				param_100fdx_cap:1,
662 				param_100hdx_cap:1,
663 				param_10fdx_cap:1,
664 				param_10hdx_cap:1,
665 				param_autoneg_cap:1,
666 				param_pause_cap:1,
667 				param_asym_pause_cap:1,
668 				param_rem_fault:1,
669 				param_adv_1000fdx_cap:1,
670 				param_adv_1000hdx_cap:1,
671 				param_adv_100t4_cap:1,
672 				param_adv_100fdx_cap:1,
673 				param_adv_100hdx_cap:1,
674 				param_adv_10fdx_cap:1,
675 				param_adv_10hdx_cap:1,
676 				param_adv_autoneg_cap:1,
677 				param_adv_pause_cap:1,
678 				param_adv_asym_pause_cap:1,
679 				param_adv_rem_fault:1,
680 				param_lp_1000fdx_cap:1,
681 				param_lp_1000hdx_cap:1,
682 				param_lp_100t4_cap:1;
683 
684 	uint32_t		param_lp_100fdx_cap:1,
685 				param_lp_100hdx_cap:1,
686 				param_lp_10fdx_cap:1,
687 				param_lp_10hdx_cap:1,
688 				param_lp_autoneg_cap:1,
689 				param_lp_pause_cap:1,
690 				param_lp_asym_pause_cap:1,
691 				param_lp_rem_fault:1,
692 				param_pad_to_32:24;
693 
694 	/*
695 	 * FMA capabilities
696 	 */
697 	int			fm_capabilities;
698 
699 	ulong_t			page_size;
700 } igb_t;
701 
702 typedef struct igb_stat {
703 
704 	kstat_named_t link_speed;	/* Link Speed */
705 	kstat_named_t reset_count;	/* Reset Count */
706 	kstat_named_t dout_sync;	/* DMA out of sync */
707 #ifdef IGB_DEBUG
708 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
709 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
710 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
711 
712 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
713 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
714 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
715 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
716 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
717 
718 	kstat_named_t gprc;	/* Good Packets Received Count */
719 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
720 	kstat_named_t gor;	/* Good Octets Received Count */
721 	kstat_named_t got;	/* Good Octets Xmitd Count */
722 	kstat_named_t prc64;	/* Packets Received - 64b */
723 	kstat_named_t prc127;	/* Packets Received - 65-127b */
724 	kstat_named_t prc255;	/* Packets Received - 127-255b */
725 	kstat_named_t prc511;	/* Packets Received - 256-511b */
726 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
727 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
728 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
729 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
730 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
731 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
732 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
733 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
734 #endif
735 	kstat_named_t crcerrs;	/* CRC Error Count */
736 	kstat_named_t symerrs;	/* Symbol Error Count */
737 	kstat_named_t mpc;	/* Missed Packet Count */
738 	kstat_named_t scc;	/* Single Collision Count */
739 	kstat_named_t ecol;	/* Excessive Collision Count */
740 	kstat_named_t mcc;	/* Multiple Collision Count */
741 	kstat_named_t latecol;	/* Late Collision Count */
742 	kstat_named_t colc;	/* Collision Count */
743 	kstat_named_t dc;	/* Defer Count */
744 	kstat_named_t sec;	/* Sequence Error Count */
745 	kstat_named_t rlec;	/* Receive Length Error Count */
746 	kstat_named_t xonrxc;	/* XON Received Count */
747 	kstat_named_t xontxc;	/* XON Xmitted Count */
748 	kstat_named_t xoffrxc;	/* XOFF Received Count */
749 	kstat_named_t xofftxc;	/* Xoff Xmitted Count */
750 	kstat_named_t fcruc;	/* Unknown Flow Conrol Packet Rcvd Count */
751 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
752 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
753 	kstat_named_t rnbc;	/* Receive No Buffers Count */
754 	kstat_named_t ruc;	/* Receive Undersize Count */
755 	kstat_named_t rfc;	/* Receive Frag Count */
756 	kstat_named_t roc;	/* Receive Oversize Count */
757 	kstat_named_t rjc;	/* Receive Jabber Count */
758 	kstat_named_t tor;	/* Total Octets Recvd Count */
759 	kstat_named_t tot;	/* Total Octets Xmted Count */
760 	kstat_named_t tpr;	/* Total Packets Received */
761 	kstat_named_t tpt;	/* Total Packets Xmitted */
762 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
763 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
764 	kstat_named_t algnerrc;	/* Alignment Error count */
765 	kstat_named_t rxerrc;	/* Rx Error Count */
766 	kstat_named_t tncrs;	/* Transmit with no CRS */
767 	kstat_named_t cexterr;	/* Carrier Extension Error count */
768 	kstat_named_t tsctc;	/* TCP seg contexts xmit count */
769 	kstat_named_t tsctfc;	/* TCP seg contexts xmit fail count */
770 } igb_stat_t;
771 
772 /*
773  * Function prototypes in e1000_osdep.c
774  */
775 void e1000_write_pci_cfg(struct e1000_hw *, uint32_t, uint16_t *);
776 void e1000_read_pci_cfg(struct e1000_hw *, uint32_t, uint16_t *);
777 int32_t e1000_read_pcie_cap_reg(struct e1000_hw *, uint32_t, uint16_t *);
778 int32_t e1000_write_pcie_cap_reg(struct e1000_hw *, uint32_t, uint16_t *);
779 void e1000_rar_clear(struct e1000_hw *, uint32_t);
780 void e1000_rar_set_vmdq(struct e1000_hw *, const uint8_t *, uint32_t,
781     uint32_t, uint8_t);
782 
783 /*
784  * Function prototypes in igb_buf.c
785  */
786 int igb_alloc_dma(igb_t *);
787 void igb_free_dma(igb_t *);
788 void igb_free_dma_buffer(dma_buffer_t *);
789 int igb_alloc_rx_ring_data(igb_rx_ring_t *rx_ring);
790 void igb_free_rx_ring_data(igb_rx_data_t *rx_data);
791 
792 /*
793  * Function prototypes in igb_main.c
794  */
795 int igb_start(igb_t *, boolean_t);
796 void igb_stop(igb_t *, boolean_t);
797 int igb_setup_link(igb_t *, boolean_t);
798 int igb_unicst_find(igb_t *, const uint8_t *);
799 int igb_unicst_set(igb_t *, const uint8_t *, int);
800 int igb_multicst_add(igb_t *, const uint8_t *);
801 int igb_multicst_remove(igb_t *, const uint8_t *);
802 enum ioc_reply igb_loopback_ioctl(igb_t *, struct iocblk *, mblk_t *);
803 void igb_enable_watchdog_timer(igb_t *);
804 void igb_disable_watchdog_timer(igb_t *);
805 int igb_atomic_reserve(uint32_t *, uint32_t);
806 int igb_check_acc_handle(ddi_acc_handle_t);
807 int igb_check_dma_handle(ddi_dma_handle_t);
808 void igb_fm_ereport(igb_t *, char *);
809 void igb_set_fma_flags(int);
810 
811 /*
812  * Function prototypes in igb_gld.c
813  */
814 int igb_m_start(void *);
815 void igb_m_stop(void *);
816 int igb_m_promisc(void *, boolean_t);
817 int igb_m_multicst(void *, boolean_t, const uint8_t *);
818 int igb_m_unicst(void *, const uint8_t *);
819 int igb_m_stat(void *, uint_t, uint64_t *);
820 void igb_m_resources(void *);
821 void igb_m_ioctl(void *, queue_t *, mblk_t *);
822 boolean_t igb_m_getcapab(void *, mac_capab_t, void *);
823 void igb_fill_ring(void *, mac_ring_type_t, const int, const int,
824     mac_ring_info_t *, mac_ring_handle_t);
825 int igb_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
826 int igb_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *);
827 void igb_m_propinfo(void *, const char *, mac_prop_id_t,
828     mac_prop_info_handle_t);
829 int igb_set_priv_prop(igb_t *, const char *, uint_t, const void *);
830 int igb_get_priv_prop(igb_t *, const char *, uint_t, void *);
831 void igb_priv_prop_info(igb_t *, const char *, mac_prop_info_handle_t);
832 boolean_t igb_param_locked(mac_prop_id_t);
833 void igb_fill_group(void *arg, mac_ring_type_t, const int,
834     mac_group_info_t *, mac_group_handle_t);
835 int igb_rx_ring_intr_enable(mac_intr_handle_t);
836 int igb_rx_ring_intr_disable(mac_intr_handle_t);
837 int igb_get_def_val(igb_t *, mac_prop_id_t, uint_t, void *);
838 
839 /*
840  * Function prototypes in igb_rx.c
841  */
842 mblk_t *igb_rx(igb_rx_ring_t *, int);
843 void igb_rx_recycle(caddr_t arg);
844 
845 /*
846  * Function prototypes in igb_tx.c
847  */
848 void igb_free_tcb(tx_control_block_t *);
849 void igb_put_free_list(igb_tx_ring_t *, link_list_t *);
850 uint32_t igb_tx_recycle_legacy(igb_tx_ring_t *);
851 uint32_t igb_tx_recycle_head_wb(igb_tx_ring_t *);
852 
853 /*
854  * Function prototypes in igb_log.c
855  */
856 void igb_notice(void *, const char *, ...);
857 void igb_log(void *, const char *, ...);
858 void igb_error(void *, const char *, ...);
859 
860 /*
861  * Function prototypes in igb_stat.c
862  */
863 int igb_init_stats(igb_t *);
864 
865 mblk_t *igb_rx_ring_poll(void *, int);
866 mblk_t *igb_tx_ring_send(void *, mblk_t *);
867 int igb_rx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
868 int igb_tx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
869 
870 #ifdef __cplusplus
871 }
872 #endif
873 
874 #endif /* _IGB_SW_H */
875