xref: /titanic_51/usr/src/uts/common/io/igb/igb_sw.h (revision 1886f67eb9de99edbcda88765f2c603a30c87fc2)
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  * Copyright 2014 Pluribus Networks Inc.
29  */
30 
31 #ifndef	_IGB_SW_H
32 #define	_IGB_SW_H
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
38 #include <sys/types.h>
39 #include <sys/conf.h>
40 #include <sys/debug.h>
41 #include <sys/stropts.h>
42 #include <sys/stream.h>
43 #include <sys/strsun.h>
44 #include <sys/strlog.h>
45 #include <sys/kmem.h>
46 #include <sys/stat.h>
47 #include <sys/kstat.h>
48 #include <sys/modctl.h>
49 #include <sys/errno.h>
50 #include <sys/dlpi.h>
51 #include <sys/mac_provider.h>
52 #include <sys/mac_ether.h>
53 #include <sys/vlan.h>
54 #include <sys/ddi.h>
55 #include <sys/sunddi.h>
56 #include <sys/pci.h>
57 #include <sys/pcie.h>
58 #include <sys/sdt.h>
59 #include <sys/ethernet.h>
60 #include <sys/pattr.h>
61 #include <sys/strsubr.h>
62 #include <sys/netlb.h>
63 #include <sys/random.h>
64 #include <inet/common.h>
65 #include <inet/tcp.h>
66 #include <inet/ip.h>
67 #include <inet/mi.h>
68 #include <inet/nd.h>
69 #include <sys/ddifm.h>
70 #include <sys/fm/protocol.h>
71 #include <sys/fm/util.h>
72 #include <sys/fm/io/ddi.h>
73 #include "e1000_api.h"
74 #include "e1000_82575.h"
75 
76 
77 #define	MODULE_NAME			"igb"	/* module name */
78 
79 #define	IGB_SUCCESS			DDI_SUCCESS
80 #define	IGB_FAILURE			DDI_FAILURE
81 
82 #define	IGB_UNKNOWN			0x00
83 #define	IGB_INITIALIZED			0x01
84 #define	IGB_STARTED			0x02
85 #define	IGB_SUSPENDED			0x04
86 #define	IGB_STALL			0x08
87 #define	IGB_ERROR			0x80
88 
89 #define	IGB_RX_STOPPED			0x1
90 
91 #define	IGB_INTR_NONE			0
92 #define	IGB_INTR_MSIX			1
93 #define	IGB_INTR_MSI			2
94 #define	IGB_INTR_LEGACY			3
95 
96 #define	IGB_ADAPTER_REGSET		1	/* mapping adapter registers */
97 #define	IGB_ADAPTER_MSIXTAB		4	/* mapping msi-x table */
98 
99 #define	IGB_NO_POLL			-1
100 #define	IGB_NO_FREE_SLOT		-1
101 
102 #define	MAX_NUM_UNICAST_ADDRESSES	E1000_RAR_ENTRIES
103 #define	MCAST_ALLOC_COUNT		256
104 #define	MAX_COOKIE			18
105 #define	MIN_NUM_TX_DESC			2
106 
107 /*
108  * Number of settings for interrupt throttle rate (ITR).  There is one of
109  * these per msi-x vector and it needs to be the maximum of all silicon
110  * types supported by this driver.
111  */
112 #define	MAX_NUM_EITR			25
113 
114 /*
115  * Maximum values for user configurable parameters
116  */
117 #define	MAX_TX_RING_SIZE		4096
118 #define	MAX_RX_RING_SIZE		4096
119 #define	MAX_RX_GROUP_NUM		4
120 
121 #define	MAX_MTU				9000
122 #define	MAX_RX_LIMIT_PER_INTR		4096
123 
124 #define	MAX_RX_COPY_THRESHOLD		9216
125 #define	MAX_TX_COPY_THRESHOLD		9216
126 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
127 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
128 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
129 #define	MAX_MCAST_NUM			8192
130 
131 /*
132  * Minimum values for user configurable parameters
133  */
134 #define	MIN_TX_RING_SIZE		64
135 #define	MIN_RX_RING_SIZE		64
136 #define	MIN_RX_GROUP_NUM		1
137 
138 #define	MIN_MTU				ETHERMIN
139 #define	MIN_RX_LIMIT_PER_INTR		16
140 
141 #define	MIN_RX_COPY_THRESHOLD		0
142 #define	MIN_TX_COPY_THRESHOLD		0
143 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
144 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
145 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
146 #define	MIN_MCAST_NUM			8
147 
148 /*
149  * Default values for user configurable parameters
150  */
151 #define	DEFAULT_TX_RING_SIZE		512
152 #define	DEFAULT_RX_RING_SIZE		512
153 #define	DEFAULT_RX_GROUP_NUM		1
154 
155 #define	DEFAULT_MTU			ETHERMTU
156 #define	DEFAULT_RX_LIMIT_PER_INTR	256
157 
158 #define	DEFAULT_RX_COPY_THRESHOLD	128
159 #define	DEFAULT_TX_COPY_THRESHOLD	512
160 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
161 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
162 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
163 #define	DEFAULT_TX_RESCHED_THRESHOLD_LOW	32
164 #define	DEFAULT_MCAST_NUM		4096
165 
166 #define	IGB_LSO_MAXLEN			65535
167 
168 #define	TX_DRAIN_TIME			200
169 #define	RX_DRAIN_TIME			200
170 
171 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
172 
173 /*
174  * Defined for IP header alignment.
175  */
176 #define	IPHDR_ALIGN_ROOM		2
177 
178 /*
179  * Bit flags for attach_progress
180  */
181 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
182 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
183 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
184 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
185 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
186 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
187 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
188 #define	ATTACH_PROGRESS_INIT_ADAPTER	0x0080	/* Adapter initialized */
189 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
190 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
191 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
192 #define	ATTACH_PROGRESS_FMINIT		0x2000	/* FMA initialized */
193 
194 #define	PROP_ADV_AUTONEG_CAP		"adv_autoneg_cap"
195 #define	PROP_ADV_1000FDX_CAP		"adv_1000fdx_cap"
196 #define	PROP_ADV_1000HDX_CAP		"adv_1000hdx_cap"
197 #define	PROP_ADV_100FDX_CAP		"adv_100fdx_cap"
198 #define	PROP_ADV_100HDX_CAP		"adv_100hdx_cap"
199 #define	PROP_ADV_10FDX_CAP		"adv_10fdx_cap"
200 #define	PROP_ADV_10HDX_CAP		"adv_10hdx_cap"
201 #define	PROP_DEFAULT_MTU		"default_mtu"
202 #define	PROP_FLOW_CONTROL		"flow_control"
203 #define	PROP_TX_RING_SIZE		"tx_ring_size"
204 #define	PROP_RX_RING_SIZE		"rx_ring_size"
205 #define	PROP_MR_ENABLE			"mr_enable"
206 #define	PROP_RX_GROUP_NUM		"rx_group_number"
207 
208 #define	PROP_INTR_FORCE			"intr_force"
209 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
210 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
211 #define	PROP_LSO_ENABLE			"lso_enable"
212 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
213 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
214 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
215 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
216 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
217 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
218 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
219 #define	PROP_INTR_THROTTLING		"intr_throttling"
220 #define	PROP_MCAST_MAX_NUM		"mcast_max_num"
221 
222 #define	IGB_LB_NONE			0
223 #define	IGB_LB_EXTERNAL			1
224 #define	IGB_LB_INTERNAL_PHY		3
225 #define	IGB_LB_INTERNAL_SERDES		4
226 
227 enum ioc_reply {
228 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
229 	IOC_DONE, 	/* OK, reply sent */
230 	IOC_ACK,	/* OK, just send ACK */
231 	IOC_REPLY	/* OK, just send reply */
232 };
233 
234 /*
235  * For s/w context extraction from a tx frame
236  */
237 #define	TX_CXT_SUCCESS		0
238 #define	TX_CXT_E_LSO_CSUM	(-1)
239 #define	TX_CXT_E_ETHER_TYPE	(-2)
240 
241 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
242 				    0, 0, (flag)))
243 
244 /*
245  * Defined for ring index operations
246  * ASSERT(index < limit)
247  * ASSERT(step < limit)
248  * ASSERT(index1 < limit)
249  * ASSERT(index2 < limit)
250  */
251 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
252 	(index) + (step) : (index) + (step) - (limit))
253 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
254 	(index) - (step) : (index) + (limit) - (step))
255 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
256 	(index2) - (index1) : (index2) + (limit) - (index1))
257 
258 #define	LINK_LIST_INIT(_LH)	\
259 	(_LH)->head = (_LH)->tail = NULL
260 
261 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
262 
263 #define	LIST_POP_HEAD(_LH)	\
264 	(single_link_t *)(_LH)->head; \
265 	{ \
266 		if ((_LH)->head != NULL) { \
267 			(_LH)->head = (_LH)->head->link; \
268 			if ((_LH)->head == NULL) \
269 				(_LH)->tail = NULL; \
270 		} \
271 	}
272 
273 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
274 
275 #define	LIST_PUSH_TAIL(_LH, _E)	\
276 	if ((_LH)->tail != NULL) { \
277 		(_LH)->tail->link = (single_link_t *)(_E); \
278 		(_LH)->tail = (single_link_t *)(_E); \
279 	} else { \
280 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
281 	} \
282 	(_E)->link = NULL;
283 
284 #define	LIST_GET_NEXT(_LH, _E)		\
285 	(((_LH)->tail == (single_link_t *)(_E)) ? \
286 	NULL : ((single_link_t *)(_E))->link)
287 
288 
289 typedef struct single_link {
290 	struct single_link	*link;
291 } single_link_t;
292 
293 typedef struct link_list {
294 	single_link_t		*head;
295 	single_link_t		*tail;
296 } link_list_t;
297 
298 /*
299  * Property lookups
300  */
301 #define	IGB_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
302 				    DDI_PROP_DONTPASS, (n))
303 #define	IGB_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
304 				    DDI_PROP_DONTPASS, (n), -1)
305 
306 
307 /* capability/feature flags */
308 #define	IGB_FLAG_HAS_DCA	(1 << 0) /* has Direct Cache Access */
309 #define	IGB_FLAG_VMDQ_POOL	(1 << 1) /* has vmdq capability */
310 #define	IGB_FLAG_NEED_CTX_IDX	(1 << 2) /* context descriptor needs index */
311 
312 /* function pointer for nic-specific functions */
313 typedef void (*igb_nic_func_t)(struct igb *);
314 
315 /* adapter-specific info for each supported device type */
316 typedef struct adapter_info {
317 	/* limits */
318 	uint32_t	max_rx_que_num;	/* maximum number of rx queues */
319 	uint32_t	min_rx_que_num;	/* minimum number of rx queues */
320 	uint32_t	def_rx_que_num;	/* default number of rx queues */
321 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
322 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
323 	uint32_t	def_tx_que_num;	/* default number of tx queues */
324 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
325 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
326 	uint32_t	def_intr_throttle; /* default interrupt throttle */
327 	/* function pointers */
328 	igb_nic_func_t	enable_intr;	/* enable adapter interrupts */
329 	igb_nic_func_t	setup_msix;	/* set up msi-x vectors */
330 	/* capabilities */
331 	uint32_t	flags;		/* capability flags */
332 	uint32_t	rxdctl_mask;	/* mask for RXDCTL register */
333 } adapter_info_t;
334 
335 typedef union igb_ether_addr {
336 	struct {
337 		uint32_t	high;
338 		uint32_t	low;
339 	} reg;
340 	struct {
341 		uint8_t		set;
342 		uint8_t		group_index;
343 		uint8_t		addr[ETHERADDRL];
344 	} mac;
345 } igb_ether_addr_t;
346 
347 typedef enum {
348 	USE_NONE,
349 	USE_COPY,
350 	USE_DMA
351 } tx_type_t;
352 
353 typedef struct tx_context {
354 	uint32_t		hcksum_flags;
355 	uint32_t		ip_hdr_len;
356 	uint32_t		mac_hdr_len;
357 	uint32_t		l4_proto;
358 	uint32_t		mss;
359 	uint32_t		l4_hdr_len;
360 	boolean_t		lso_flag;
361 } tx_context_t;
362 
363 /* Hold address/length of each DMA segment */
364 typedef struct sw_desc {
365 	uint64_t		address;
366 	size_t			length;
367 } sw_desc_t;
368 
369 /* Handles and addresses of DMA buffer */
370 typedef struct dma_buffer {
371 	caddr_t			address;	/* Virtual address */
372 	uint64_t		dma_address;	/* DMA (Hardware) address */
373 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
374 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
375 	size_t			size;		/* Buffer size */
376 	size_t			len;		/* Data length in the buffer */
377 } dma_buffer_t;
378 
379 /*
380  * Tx Control Block
381  */
382 typedef struct tx_control_block {
383 	single_link_t		link;
384 	uint32_t		last_index;
385 	uint32_t		frag_num;
386 	uint32_t		desc_num;
387 	mblk_t			*mp;
388 	tx_type_t		tx_type;
389 	ddi_dma_handle_t	tx_dma_handle;
390 	dma_buffer_t		tx_buf;
391 	sw_desc_t		desc[MAX_COOKIE];
392 } tx_control_block_t;
393 
394 /*
395  * RX Control Block
396  */
397 typedef struct rx_control_block {
398 	mblk_t			*mp;
399 	uint32_t		ref_cnt;
400 	dma_buffer_t		rx_buf;
401 	frtn_t			free_rtn;
402 	struct igb_rx_data	*rx_data;
403 } rx_control_block_t;
404 
405 /*
406  * Software Data Structure for Tx Ring
407  */
408 typedef struct igb_tx_ring {
409 	uint32_t		index;	/* Ring index */
410 	uint32_t		intr_vector;	/* Interrupt vector index */
411 
412 	/*
413 	 * Mutexes
414 	 */
415 	kmutex_t		tx_lock;
416 	kmutex_t		recycle_lock;
417 	kmutex_t		tcb_head_lock;
418 	kmutex_t		tcb_tail_lock;
419 
420 	/*
421 	 * Tx descriptor ring definitions
422 	 */
423 	dma_buffer_t		tbd_area;
424 	union e1000_adv_tx_desc	*tbd_ring;
425 	uint32_t		tbd_head; /* Index of next tbd to recycle */
426 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
427 	uint32_t		tbd_free; /* Number of free tbd */
428 
429 	/*
430 	 * Tx control block list definitions
431 	 */
432 	tx_control_block_t	*tcb_area;
433 	tx_control_block_t	**work_list;
434 	tx_control_block_t	**free_list;
435 	uint32_t		tcb_head; /* Head index of free list */
436 	uint32_t		tcb_tail; /* Tail index of free list */
437 	uint32_t		tcb_free; /* Number of free tcb in free list */
438 
439 	uint32_t		*tbd_head_wb; /* Head write-back */
440 	uint32_t		(*tx_recycle)(struct igb_tx_ring *);
441 
442 	/*
443 	 * s/w context structure for TCP/UDP checksum offload and LSO.
444 	 */
445 	tx_context_t		tx_context;
446 
447 	/*
448 	 * Tx ring settings and status
449 	 */
450 	uint32_t		ring_size; /* Tx descriptor ring size */
451 	uint32_t		free_list_size;	/* Tx free list size */
452 
453 	boolean_t		reschedule;
454 	uint32_t		recycle_fail;
455 	uint32_t		stall_watchdog;
456 
457 	/*
458 	 * Per-ring statistics
459 	 */
460 	uint64_t		tx_pkts;	/* Packets Transmitted Count */
461 	uint64_t		tx_bytes;	/* Bytes Transmitted Count */
462 
463 #ifdef IGB_DEBUG
464 	/*
465 	 * Debug statistics
466 	 */
467 	uint32_t		stat_overload;
468 	uint32_t		stat_fail_no_tbd;
469 	uint32_t		stat_fail_no_tcb;
470 	uint32_t		stat_fail_dma_bind;
471 	uint32_t		stat_reschedule;
472 	uint32_t		stat_pkt_cnt;
473 #endif
474 
475 	/*
476 	 * Pointer to the igb struct
477 	 */
478 	struct igb		*igb;
479 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
480 } igb_tx_ring_t;
481 
482 /*
483  * Software Receive Ring
484  */
485 typedef struct igb_rx_data {
486 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
487 
488 	/*
489 	 * Rx descriptor ring definitions
490 	 */
491 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
492 	union e1000_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
493 	uint32_t		rbd_next;	/* Index of next rx desc */
494 
495 	/*
496 	 * Rx control block list definitions
497 	 */
498 	rx_control_block_t	*rcb_area;
499 	rx_control_block_t	**work_list;	/* Work list of rcbs */
500 	rx_control_block_t	**free_list;	/* Free list of rcbs */
501 	uint32_t		rcb_head;	/* Index of next free rcb */
502 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
503 	uint32_t		rcb_free;	/* Number of free rcbs */
504 
505 	/*
506 	 * Rx sw ring settings and status
507 	 */
508 	uint32_t		ring_size;	/* Rx descriptor ring size */
509 	uint32_t		free_list_size;	/* Rx free list size */
510 
511 	uint32_t		rcb_pending;
512 	uint32_t		flag;
513 
514 	struct igb_rx_ring	*rx_ring;	/* Pointer to rx ring */
515 } igb_rx_data_t;
516 
517 /*
518  * Software Data Structure for Rx Ring
519  */
520 typedef struct igb_rx_ring {
521 	uint32_t		index;		/* Ring index */
522 	uint32_t		intr_vector;	/* Interrupt vector index */
523 
524 	igb_rx_data_t		*rx_data;	/* Rx software ring */
525 
526 	kmutex_t		rx_lock;	/* Rx access lock */
527 
528 	/*
529 	 * Per-ring statistics
530 	 */
531 	uint64_t		rx_pkts;	/* Packets Received Count */
532 	uint64_t		rx_bytes;	/* Bytes Received Count */
533 
534 #ifdef IGB_DEBUG
535 	/*
536 	 * Debug statistics
537 	 */
538 	uint32_t		stat_frame_error;
539 	uint32_t		stat_cksum_error;
540 	uint32_t		stat_exceed_pkt;
541 	uint32_t		stat_pkt_cnt;
542 #endif
543 
544 	struct igb		*igb;		/* Pointer to igb struct */
545 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
546 	uint32_t		group_index;	/* group index */
547 	uint64_t		ring_gen_num;
548 } igb_rx_ring_t;
549 
550 /*
551  * Software Receive Ring Group
552  */
553 typedef struct igb_rx_group {
554 	uint32_t		index;		/* Group index */
555 	mac_group_handle_t	group_handle;   /* call back group handle */
556 	struct igb		*igb;		/* Pointer to igb struct */
557 } igb_rx_group_t;
558 
559 typedef struct igb {
560 	int 			instance;
561 	mac_handle_t		mac_hdl;
562 	dev_info_t		*dip;
563 	struct e1000_hw		hw;
564 	struct igb_osdep	osdep;
565 
566 	adapter_info_t		*capab;		/* adapter capabilities */
567 
568 	uint32_t		igb_state;
569 	link_state_t		link_state;
570 	uint32_t		link_speed;
571 	uint32_t		link_duplex;
572 	boolean_t		link_complete;
573 	timeout_id_t		link_tid;
574 
575 	uint32_t		reset_count;
576 	uint32_t		attach_progress;
577 	uint32_t		loopback_mode;
578 	uint32_t		default_mtu;
579 	uint32_t		max_frame_size;
580 	uint32_t		dout_sync;
581 
582 	uint32_t		rcb_pending;
583 
584 	uint32_t		mr_enable;	/* Enable multiple rings */
585 	uint32_t		vmdq_mode;	/* Mode of VMDq */
586 
587 	/*
588 	 * Receive Rings and Groups
589 	 */
590 	igb_rx_ring_t		*rx_rings;	/* Array of rx rings */
591 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
592 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
593 	uint32_t		rx_buf_size;	/* Rx buffer size */
594 	igb_rx_group_t		*rx_groups;	/* Array of rx groups */
595 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
596 
597 	/*
598 	 * Transmit Rings
599 	 */
600 	igb_tx_ring_t		*tx_rings;	/* Array of tx rings */
601 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
602 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
603 	uint32_t		tx_buf_size;	/* Tx buffer size */
604 
605 	boolean_t		tx_ring_init;
606 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
607 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
608 	boolean_t 		lso_enable; 	/* Large Segment Offload */
609 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
610 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
611 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
612 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
613 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
614 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
615 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
616 
617 	uint32_t		intr_throttling[MAX_NUM_EITR];
618 	uint32_t		intr_force;
619 
620 	int			intr_type;
621 	int			intr_cnt;
622 	int			intr_cap;
623 	size_t			intr_size;
624 	uint_t			intr_pri;
625 	ddi_intr_handle_t	*htable;
626 	uint32_t		eims_mask;
627 	uint32_t		ims_mask;
628 
629 	kmutex_t		gen_lock; /* General lock for device access */
630 	kmutex_t		watchdog_lock;
631 	kmutex_t		link_lock;
632 	kmutex_t		rx_pending_lock;
633 
634 	boolean_t		watchdog_enable;
635 	boolean_t		watchdog_start;
636 	timeout_id_t		watchdog_tid;
637 
638 	boolean_t		unicst_init;
639 	uint32_t		unicst_avail;
640 	uint32_t		unicst_total;
641 	igb_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
642 	uint32_t		mcast_count;
643 	uint32_t		mcast_alloc_count;
644 	uint32_t		mcast_max_num;
645 	struct ether_addr	*mcast_table;
646 
647 	/*
648 	 * Kstat definitions
649 	 */
650 	kstat_t			*igb_ks;
651 
652 	/*
653 	 * Backing store for MAC stats.  These are reported via GLDv3, instead
654 	 * of via our private kstat structure.
655 	 */
656 	uint64_t		stat_tor;	/* rbytes */
657 	uint64_t		stat_tpr;	/* rpackets */
658 	uint64_t		stat_tot;	/* obytes */
659 	uint64_t		stat_tpt;	/* opackets */
660 	uint64_t		stat_colc;	/* collisions */
661 	uint64_t		stat_mcc;	/* multi colls */
662 	uint64_t		stat_scc;	/* single colls */
663 	uint64_t		stat_ecol;	/* excessive colls */
664 	uint64_t		stat_latecol;	/* late colls */
665 	uint64_t		stat_bptc;	/* xmit bcast */
666 	uint64_t		stat_mptc;	/* xmit bcast */
667 	uint64_t		stat_bprc;	/* recv bcast */
668 	uint64_t		stat_mprc;	/* recv mcast */
669 	uint64_t		stat_rnbc;	/* recv nobuf */
670 	uint64_t		stat_roc;	/* recv toolong */
671 	uint64_t		stat_sec;	/* sqe errors */
672 	uint64_t		stat_dc;	/* defer */
673 	uint64_t		stat_algnerrc;	/* align errors */
674 	uint64_t		stat_crcerrs;	/* crc errors */
675 	uint64_t		stat_cexterr;	/* carrier extension errors */
676 	uint64_t		stat_ruc;	/* recv tooshort */
677 	uint64_t		stat_rjc;	/* recv jabber */
678 	uint64_t		stat_rxerrc;	/* recv errors */
679 
680 	uint32_t		param_en_1000fdx_cap:1,
681 				param_en_1000hdx_cap:1,
682 				param_en_100t4_cap:1,
683 				param_en_100fdx_cap:1,
684 				param_en_100hdx_cap:1,
685 				param_en_10fdx_cap:1,
686 				param_en_10hdx_cap:1,
687 				param_1000fdx_cap:1,
688 				param_1000hdx_cap:1,
689 				param_100t4_cap:1,
690 				param_100fdx_cap:1,
691 				param_100hdx_cap:1,
692 				param_10fdx_cap:1,
693 				param_10hdx_cap:1,
694 				param_autoneg_cap:1,
695 				param_pause_cap:1,
696 				param_asym_pause_cap:1,
697 				param_rem_fault:1,
698 				param_adv_1000fdx_cap:1,
699 				param_adv_1000hdx_cap:1,
700 				param_adv_100t4_cap:1,
701 				param_adv_100fdx_cap:1,
702 				param_adv_100hdx_cap:1,
703 				param_adv_10fdx_cap:1,
704 				param_adv_10hdx_cap:1,
705 				param_adv_autoneg_cap:1,
706 				param_adv_pause_cap:1,
707 				param_adv_asym_pause_cap:1,
708 				param_adv_rem_fault:1,
709 				param_lp_1000fdx_cap:1,
710 				param_lp_1000hdx_cap:1,
711 				param_lp_100t4_cap:1;
712 
713 	uint32_t		param_lp_100fdx_cap:1,
714 				param_lp_100hdx_cap:1,
715 				param_lp_10fdx_cap:1,
716 				param_lp_10hdx_cap:1,
717 				param_lp_autoneg_cap:1,
718 				param_lp_pause_cap:1,
719 				param_lp_asym_pause_cap:1,
720 				param_lp_rem_fault:1,
721 				param_pad_to_32:24;
722 
723 	/*
724 	 * FMA capabilities
725 	 */
726 	int			fm_capabilities;
727 
728 	ulong_t			page_size;
729 } igb_t;
730 
731 typedef struct igb_stat {
732 
733 	kstat_named_t reset_count;	/* Reset Count */
734 	kstat_named_t dout_sync;	/* DMA out of sync */
735 #ifdef IGB_DEBUG
736 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
737 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
738 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
739 
740 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
741 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
742 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
743 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
744 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
745 
746 	kstat_named_t gprc;	/* Good Packets Received Count */
747 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
748 	kstat_named_t gor;	/* Good Octets Received Count */
749 	kstat_named_t got;	/* Good Octets Xmitd Count */
750 	kstat_named_t prc64;	/* Packets Received - 64b */
751 	kstat_named_t prc127;	/* Packets Received - 65-127b */
752 	kstat_named_t prc255;	/* Packets Received - 127-255b */
753 	kstat_named_t prc511;	/* Packets Received - 256-511b */
754 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
755 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
756 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
757 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
758 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
759 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
760 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
761 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
762 #endif
763 	kstat_named_t symerrs;	/* Symbol Error Count */
764 	kstat_named_t mpc;	/* Missed Packet Count */
765 	kstat_named_t rlec;	/* Receive Length Error Count */
766 	kstat_named_t xonrxc;	/* XON Received Count */
767 	kstat_named_t xontxc;	/* XON Xmitted Count */
768 	kstat_named_t xoffrxc;	/* XOFF Received Count */
769 	kstat_named_t xofftxc;	/* Xoff Xmitted Count */
770 	kstat_named_t fcruc;	/* Unknown Flow Conrol Packet Rcvd Count */
771 	kstat_named_t rfc;	/* Receive Frag Count */
772 	kstat_named_t tncrs;	/* Transmit with no CRS */
773 	kstat_named_t tsctc;	/* TCP seg contexts xmit count */
774 	kstat_named_t tsctfc;	/* TCP seg contexts xmit fail count */
775 } igb_stat_t;
776 
777 /*
778  * Function prototypes in e1000_osdep.c
779  */
780 void e1000_write_pci_cfg(struct e1000_hw *, uint32_t, uint16_t *);
781 void e1000_read_pci_cfg(struct e1000_hw *, uint32_t, uint16_t *);
782 int32_t e1000_read_pcie_cap_reg(struct e1000_hw *, uint32_t, uint16_t *);
783 int32_t e1000_write_pcie_cap_reg(struct e1000_hw *, uint32_t, uint16_t *);
784 void e1000_rar_clear(struct e1000_hw *, uint32_t);
785 void e1000_rar_set_vmdq(struct e1000_hw *, const uint8_t *, uint32_t,
786     uint32_t, uint8_t);
787 
788 /*
789  * Function prototypes in igb_buf.c
790  */
791 int igb_alloc_dma(igb_t *);
792 void igb_free_dma(igb_t *);
793 void igb_free_dma_buffer(dma_buffer_t *);
794 int igb_alloc_rx_ring_data(igb_rx_ring_t *rx_ring);
795 void igb_free_rx_ring_data(igb_rx_data_t *rx_data);
796 
797 /*
798  * Function prototypes in igb_main.c
799  */
800 int igb_start(igb_t *, boolean_t);
801 void igb_stop(igb_t *, boolean_t);
802 int igb_setup_link(igb_t *, boolean_t);
803 int igb_unicst_find(igb_t *, const uint8_t *);
804 int igb_unicst_set(igb_t *, const uint8_t *, int);
805 int igb_multicst_add(igb_t *, const uint8_t *);
806 int igb_multicst_remove(igb_t *, const uint8_t *);
807 enum ioc_reply igb_loopback_ioctl(igb_t *, struct iocblk *, mblk_t *);
808 void igb_enable_watchdog_timer(igb_t *);
809 void igb_disable_watchdog_timer(igb_t *);
810 int igb_atomic_reserve(uint32_t *, uint32_t);
811 int igb_check_acc_handle(ddi_acc_handle_t);
812 int igb_check_dma_handle(ddi_dma_handle_t);
813 void igb_fm_ereport(igb_t *, char *);
814 void igb_set_fma_flags(int);
815 
816 /*
817  * Function prototypes in igb_gld.c
818  */
819 int igb_m_start(void *);
820 void igb_m_stop(void *);
821 int igb_m_promisc(void *, boolean_t);
822 int igb_m_multicst(void *, boolean_t, const uint8_t *);
823 int igb_m_unicst(void *, const uint8_t *);
824 int igb_m_stat(void *, uint_t, uint64_t *);
825 void igb_m_resources(void *);
826 void igb_m_ioctl(void *, queue_t *, mblk_t *);
827 boolean_t igb_m_getcapab(void *, mac_capab_t, void *);
828 void igb_fill_ring(void *, mac_ring_type_t, const int, const int,
829     mac_ring_info_t *, mac_ring_handle_t);
830 int igb_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
831 int igb_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *);
832 void igb_m_propinfo(void *, const char *, mac_prop_id_t,
833     mac_prop_info_handle_t);
834 int igb_set_priv_prop(igb_t *, const char *, uint_t, const void *);
835 int igb_get_priv_prop(igb_t *, const char *, uint_t, void *);
836 void igb_priv_prop_info(igb_t *, const char *, mac_prop_info_handle_t);
837 boolean_t igb_param_locked(mac_prop_id_t);
838 void igb_fill_group(void *arg, mac_ring_type_t, const int,
839     mac_group_info_t *, mac_group_handle_t);
840 int igb_rx_ring_intr_enable(mac_intr_handle_t);
841 int igb_rx_ring_intr_disable(mac_intr_handle_t);
842 int igb_get_def_val(igb_t *, mac_prop_id_t, uint_t, void *);
843 
844 /*
845  * Function prototypes in igb_rx.c
846  */
847 mblk_t *igb_rx(igb_rx_ring_t *, int);
848 void igb_rx_recycle(caddr_t arg);
849 
850 /*
851  * Function prototypes in igb_tx.c
852  */
853 void igb_free_tcb(tx_control_block_t *);
854 void igb_put_free_list(igb_tx_ring_t *, link_list_t *);
855 uint32_t igb_tx_recycle_legacy(igb_tx_ring_t *);
856 uint32_t igb_tx_recycle_head_wb(igb_tx_ring_t *);
857 
858 /*
859  * Function prototypes in igb_log.c
860  */
861 void igb_notice(void *, const char *, ...);
862 void igb_log(void *, const char *, ...);
863 void igb_error(void *, const char *, ...);
864 
865 /*
866  * Function prototypes in igb_stat.c
867  */
868 int igb_init_stats(igb_t *);
869 
870 mblk_t *igb_rx_ring_poll(void *, int);
871 mblk_t *igb_tx_ring_send(void *, mblk_t *);
872 int igb_rx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
873 int igb_tx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
874 
875 #ifdef __cplusplus
876 }
877 #endif
878 
879 #endif /* _IGB_SW_H */
880