xref: /titanic_44/usr/src/uts/common/io/igb/igb_sw.h (revision 0dc2366f7b9f9f36e10909b1e95edbf2a261c2ac)
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 usr/src/OPENSOLARIS.LICENSE
10  * or 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 distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 
23 /*
24  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 
28 #ifndef	_IGB_SW_H
29 #define	_IGB_SW_H
30 
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34 
35 #include <sys/types.h>
36 #include <sys/conf.h>
37 #include <sys/debug.h>
38 #include <sys/stropts.h>
39 #include <sys/stream.h>
40 #include <sys/strsun.h>
41 #include <sys/strlog.h>
42 #include <sys/kmem.h>
43 #include <sys/stat.h>
44 #include <sys/kstat.h>
45 #include <sys/modctl.h>
46 #include <sys/errno.h>
47 #include <sys/dlpi.h>
48 #include <sys/mac_provider.h>
49 #include <sys/mac_ether.h>
50 #include <sys/vlan.h>
51 #include <sys/ddi.h>
52 #include <sys/sunddi.h>
53 #include <sys/pci.h>
54 #include <sys/pcie.h>
55 #include <sys/sdt.h>
56 #include <sys/ethernet.h>
57 #include <sys/pattr.h>
58 #include <sys/strsubr.h>
59 #include <sys/netlb.h>
60 #include <sys/random.h>
61 #include <inet/common.h>
62 #include <inet/tcp.h>
63 #include <inet/ip.h>
64 #include <inet/mi.h>
65 #include <inet/nd.h>
66 #include <sys/ddifm.h>
67 #include <sys/fm/protocol.h>
68 #include <sys/fm/util.h>
69 #include <sys/fm/io/ddi.h>
70 #include "igb_api.h"
71 #include "igb_82575.h"
72 
73 
74 #define	MODULE_NAME			"igb"	/* module name */
75 
76 #define	IGB_SUCCESS			DDI_SUCCESS
77 #define	IGB_FAILURE			DDI_FAILURE
78 
79 #define	IGB_UNKNOWN			0x00
80 #define	IGB_INITIALIZED			0x01
81 #define	IGB_STARTED			0x02
82 #define	IGB_SUSPENDED			0x04
83 #define	IGB_STALL			0x08
84 #define	IGB_ERROR			0x80
85 
86 #define	IGB_RX_STOPPED			0x1
87 
88 #define	IGB_INTR_NONE			0
89 #define	IGB_INTR_MSIX			1
90 #define	IGB_INTR_MSI			2
91 #define	IGB_INTR_LEGACY			3
92 
93 #define	IGB_ADAPTER_REGSET		1	/* mapping adapter registers */
94 #define	IGB_ADAPTER_MSIXTAB		4	/* mapping msi-x table */
95 
96 #define	IGB_NO_POLL			-1
97 #define	IGB_NO_FREE_SLOT		-1
98 
99 #define	MAX_NUM_UNICAST_ADDRESSES	E1000_RAR_ENTRIES
100 #define	MCAST_ALLOC_COUNT		256
101 #define	MAX_COOKIE			18
102 #define	MIN_NUM_TX_DESC			2
103 
104 /*
105  * Number of settings for interrupt throttle rate (ITR).  There is one of
106  * these per msi-x vector and it needs to be the maximum of all silicon
107  * types supported by this driver.
108  */
109 #define	MAX_NUM_EITR			25
110 
111 /*
112  * Maximum values for user configurable parameters
113  */
114 #define	MAX_TX_RING_SIZE		4096
115 #define	MAX_RX_RING_SIZE		4096
116 #define	MAX_RX_GROUP_NUM		4
117 
118 #define	MAX_MTU				9000
119 #define	MAX_RX_LIMIT_PER_INTR		4096
120 
121 #define	MAX_RX_COPY_THRESHOLD		9216
122 #define	MAX_TX_COPY_THRESHOLD		9216
123 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
124 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
125 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
126 #define	MAX_MCAST_NUM			8192
127 
128 /*
129  * Minimum values for user configurable parameters
130  */
131 #define	MIN_TX_RING_SIZE		64
132 #define	MIN_RX_RING_SIZE		64
133 #define	MIN_RX_GROUP_NUM		1
134 
135 #define	MIN_MTU				ETHERMIN
136 #define	MIN_RX_LIMIT_PER_INTR		16
137 
138 #define	MIN_RX_COPY_THRESHOLD		0
139 #define	MIN_TX_COPY_THRESHOLD		0
140 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
141 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
142 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
143 #define	MIN_MCAST_NUM			8
144 
145 /*
146  * Default values for user configurable parameters
147  */
148 #define	DEFAULT_TX_RING_SIZE		512
149 #define	DEFAULT_RX_RING_SIZE		512
150 #define	DEFAULT_RX_GROUP_NUM		1
151 
152 #define	DEFAULT_MTU			ETHERMTU
153 #define	DEFAULT_RX_LIMIT_PER_INTR	256
154 
155 #define	DEFAULT_RX_COPY_THRESHOLD	128
156 #define	DEFAULT_TX_COPY_THRESHOLD	512
157 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
158 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
159 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
160 #define	DEFAULT_MCAST_NUM		4096
161 
162 #define	IGB_LSO_MAXLEN			65535
163 
164 #define	TX_DRAIN_TIME			200
165 #define	RX_DRAIN_TIME			200
166 
167 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
168 #define	MAX_LINK_DOWN_TIMEOUT		8	/* 8 seconds */
169 
170 /*
171  * Defined for IP header alignment.
172  */
173 #define	IPHDR_ALIGN_ROOM		2
174 
175 /*
176  * Bit flags for attach_progress
177  */
178 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
179 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
180 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
181 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
182 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
183 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
184 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
185 #define	ATTACH_PROGRESS_INIT_ADAPTER	0x0080	/* Adapter initialized */
186 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
187 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
188 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
189 #define	ATTACH_PROGRESS_FMINIT		0x2000	/* FMA initialized */
190 
191 #define	PROP_ADV_AUTONEG_CAP		"adv_autoneg_cap"
192 #define	PROP_ADV_1000FDX_CAP		"adv_1000fdx_cap"
193 #define	PROP_ADV_1000HDX_CAP		"adv_1000hdx_cap"
194 #define	PROP_ADV_100FDX_CAP		"adv_100fdx_cap"
195 #define	PROP_ADV_100HDX_CAP		"adv_100hdx_cap"
196 #define	PROP_ADV_10FDX_CAP		"adv_10fdx_cap"
197 #define	PROP_ADV_10HDX_CAP		"adv_10hdx_cap"
198 #define	PROP_DEFAULT_MTU		"default_mtu"
199 #define	PROP_FLOW_CONTROL		"flow_control"
200 #define	PROP_TX_RING_SIZE		"tx_ring_size"
201 #define	PROP_RX_RING_SIZE		"rx_ring_size"
202 #define	PROP_MR_ENABLE			"mr_enable"
203 #define	PROP_RX_GROUP_NUM		"rx_group_number"
204 
205 #define	PROP_INTR_FORCE			"intr_force"
206 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
207 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
208 #define	PROP_LSO_ENABLE			"lso_enable"
209 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
210 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
211 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
212 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
213 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
214 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
215 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
216 #define	PROP_INTR_THROTTLING		"intr_throttling"
217 #define	PROP_MCAST_MAX_NUM		"mcast_max_num"
218 
219 #define	IGB_LB_NONE			0
220 #define	IGB_LB_EXTERNAL			1
221 #define	IGB_LB_INTERNAL_PHY		3
222 #define	IGB_LB_INTERNAL_SERDES		4
223 
224 enum ioc_reply {
225 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
226 	IOC_DONE, 	/* OK, reply sent */
227 	IOC_ACK,	/* OK, just send ACK */
228 	IOC_REPLY	/* OK, just send reply */
229 };
230 
231 /*
232  * For s/w context extraction from a tx frame
233  */
234 #define	TX_CXT_SUCCESS		0
235 #define	TX_CXT_E_LSO_CSUM	(-1)
236 #define	TX_CXT_E_ETHER_TYPE	(-2)
237 
238 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
239 				    0, 0, (flag)))
240 
241 /*
242  * Defined for ring index operations
243  * ASSERT(index < limit)
244  * ASSERT(step < limit)
245  * ASSERT(index1 < limit)
246  * ASSERT(index2 < limit)
247  */
248 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
249 	(index) + (step) : (index) + (step) - (limit))
250 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
251 	(index) - (step) : (index) + (limit) - (step))
252 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
253 	(index2) - (index1) : (index2) + (limit) - (index1))
254 
255 #define	LINK_LIST_INIT(_LH)	\
256 	(_LH)->head = (_LH)->tail = NULL
257 
258 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
259 
260 #define	LIST_POP_HEAD(_LH)	\
261 	(single_link_t *)(_LH)->head; \
262 	{ \
263 		if ((_LH)->head != NULL) { \
264 			(_LH)->head = (_LH)->head->link; \
265 			if ((_LH)->head == NULL) \
266 				(_LH)->tail = NULL; \
267 		} \
268 	}
269 
270 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
271 
272 #define	LIST_PUSH_TAIL(_LH, _E)	\
273 	if ((_LH)->tail != NULL) { \
274 		(_LH)->tail->link = (single_link_t *)(_E); \
275 		(_LH)->tail = (single_link_t *)(_E); \
276 	} else { \
277 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
278 	} \
279 	(_E)->link = NULL;
280 
281 #define	LIST_GET_NEXT(_LH, _E)		\
282 	(((_LH)->tail == (single_link_t *)(_E)) ? \
283 	NULL : ((single_link_t *)(_E))->link)
284 
285 
286 typedef struct single_link {
287 	struct single_link	*link;
288 } single_link_t;
289 
290 typedef struct link_list {
291 	single_link_t		*head;
292 	single_link_t		*tail;
293 } link_list_t;
294 
295 /*
296  * Property lookups
297  */
298 #define	IGB_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
299 				    DDI_PROP_DONTPASS, (n))
300 #define	IGB_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
301 				    DDI_PROP_DONTPASS, (n), -1)
302 
303 
304 /* capability/feature flags */
305 #define	IGB_FLAG_HAS_DCA	(1 << 0) /* has Direct Cache Access */
306 #define	IGB_FLAG_VMDQ_POOL	(1 << 1) /* has vmdq capability */
307 #define	IGB_FLAG_NEED_CTX_IDX	(1 << 2) /* context descriptor needs index */
308 
309 /* function pointer for nic-specific functions */
310 typedef void (*igb_nic_func_t)(struct igb *);
311 
312 /* adapter-specific info for each supported device type */
313 typedef struct adapter_info {
314 	/* limits */
315 	uint32_t	max_rx_que_num;	/* maximum number of rx queues */
316 	uint32_t	min_rx_que_num;	/* minimum number of rx queues */
317 	uint32_t	def_rx_que_num;	/* default number of rx queues */
318 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
319 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
320 	uint32_t	def_tx_que_num;	/* default number of tx queues */
321 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
322 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
323 	uint32_t	def_intr_throttle; /* default interrupt throttle */
324 	/* function pointers */
325 	igb_nic_func_t	enable_intr;	/* enable adapter interrupts */
326 	igb_nic_func_t	setup_msix;	/* set up msi-x vectors */
327 	/* capabilities */
328 	uint32_t	flags;		/* capability flags */
329 	uint32_t	rxdctl_mask;	/* mask for RXDCTL register */
330 } adapter_info_t;
331 
332 typedef union igb_ether_addr {
333 	struct {
334 		uint32_t	high;
335 		uint32_t	low;
336 	} reg;
337 	struct {
338 		uint8_t		set;
339 		uint8_t		group_index;
340 		uint8_t		addr[ETHERADDRL];
341 	} mac;
342 } igb_ether_addr_t;
343 
344 typedef enum {
345 	USE_NONE,
346 	USE_COPY,
347 	USE_DMA
348 } tx_type_t;
349 
350 typedef struct tx_context {
351 	uint32_t		hcksum_flags;
352 	uint32_t		ip_hdr_len;
353 	uint32_t		mac_hdr_len;
354 	uint32_t		l4_proto;
355 	uint32_t		mss;
356 	uint32_t		l4_hdr_len;
357 	boolean_t		lso_flag;
358 } tx_context_t;
359 
360 /* Hold address/length of each DMA segment */
361 typedef struct sw_desc {
362 	uint64_t		address;
363 	size_t			length;
364 } sw_desc_t;
365 
366 /* Handles and addresses of DMA buffer */
367 typedef struct dma_buffer {
368 	caddr_t			address;	/* Virtual address */
369 	uint64_t		dma_address;	/* DMA (Hardware) address */
370 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
371 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
372 	size_t			size;		/* Buffer size */
373 	size_t			len;		/* Data length in the buffer */
374 } dma_buffer_t;
375 
376 /*
377  * Tx Control Block
378  */
379 typedef struct tx_control_block {
380 	single_link_t		link;
381 	uint32_t		frag_num;
382 	uint32_t		desc_num;
383 	mblk_t			*mp;
384 	tx_type_t		tx_type;
385 	ddi_dma_handle_t	tx_dma_handle;
386 	dma_buffer_t		tx_buf;
387 	sw_desc_t		desc[MAX_COOKIE];
388 } tx_control_block_t;
389 
390 /*
391  * RX Control Block
392  */
393 typedef struct rx_control_block {
394 	mblk_t			*mp;
395 	uint32_t		ref_cnt;
396 	dma_buffer_t		rx_buf;
397 	frtn_t			free_rtn;
398 	struct igb_rx_data	*rx_data;
399 } rx_control_block_t;
400 
401 /*
402  * Software Data Structure for Tx Ring
403  */
404 typedef struct igb_tx_ring {
405 	uint32_t		index;	/* Ring index */
406 	uint32_t		intr_vector;	/* Interrupt vector index */
407 
408 	/*
409 	 * Mutexes
410 	 */
411 	kmutex_t		tx_lock;
412 	kmutex_t		recycle_lock;
413 	kmutex_t		tcb_head_lock;
414 	kmutex_t		tcb_tail_lock;
415 
416 	/*
417 	 * Tx descriptor ring definitions
418 	 */
419 	dma_buffer_t		tbd_area;
420 	union e1000_adv_tx_desc	*tbd_ring;
421 	uint32_t		tbd_head; /* Index of next tbd to recycle */
422 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
423 	uint32_t		tbd_free; /* Number of free tbd */
424 
425 	/*
426 	 * Tx control block list definitions
427 	 */
428 	tx_control_block_t	*tcb_area;
429 	tx_control_block_t	**work_list;
430 	tx_control_block_t	**free_list;
431 	uint32_t		tcb_head; /* Head index of free list */
432 	uint32_t		tcb_tail; /* Tail index of free list */
433 	uint32_t		tcb_free; /* Number of free tcb in free list */
434 
435 	uint32_t		*tbd_head_wb; /* Head write-back */
436 	uint32_t		(*tx_recycle)(struct igb_tx_ring *);
437 
438 	/*
439 	 * s/w context structure for TCP/UDP checksum offload and LSO.
440 	 */
441 	tx_context_t		tx_context;
442 
443 	/*
444 	 * Tx ring settings and status
445 	 */
446 	uint32_t		ring_size; /* Tx descriptor ring size */
447 	uint32_t		free_list_size;	/* Tx free list size */
448 
449 	boolean_t		reschedule;
450 	uint32_t		recycle_fail;
451 	uint32_t		stall_watchdog;
452 
453 	/*
454 	 * Per-ring statistics
455 	 */
456 	uint64_t		tx_pkts;	/* Packets Transmitted Count */
457 	uint64_t		tx_bytes;	/* Bytes Transmitted Count */
458 
459 #ifdef IGB_DEBUG
460 	/*
461 	 * Debug statistics
462 	 */
463 	uint32_t		stat_overload;
464 	uint32_t		stat_fail_no_tbd;
465 	uint32_t		stat_fail_no_tcb;
466 	uint32_t		stat_fail_dma_bind;
467 	uint32_t		stat_reschedule;
468 	uint32_t		stat_pkt_cnt;
469 #endif
470 
471 	/*
472 	 * Pointer to the igb struct
473 	 */
474 	struct igb		*igb;
475 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
476 } igb_tx_ring_t;
477 
478 /*
479  * Software Receive Ring
480  */
481 typedef struct igb_rx_data {
482 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
483 
484 	/*
485 	 * Rx descriptor ring definitions
486 	 */
487 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
488 	union e1000_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
489 	uint32_t		rbd_next;	/* Index of next rx desc */
490 
491 	/*
492 	 * Rx control block list definitions
493 	 */
494 	rx_control_block_t	*rcb_area;
495 	rx_control_block_t	**work_list;	/* Work list of rcbs */
496 	rx_control_block_t	**free_list;	/* Free list of rcbs */
497 	uint32_t		rcb_head;	/* Index of next free rcb */
498 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
499 	uint32_t		rcb_free;	/* Number of free rcbs */
500 
501 	/*
502 	 * Rx sw ring settings and status
503 	 */
504 	uint32_t		ring_size;	/* Rx descriptor ring size */
505 	uint32_t		free_list_size;	/* Rx free list size */
506 
507 	uint32_t		rcb_pending;
508 	uint32_t		flag;
509 
510 	struct igb_rx_ring	*rx_ring;	/* Pointer to rx ring */
511 } igb_rx_data_t;
512 
513 /*
514  * Software Data Structure for Rx Ring
515  */
516 typedef struct igb_rx_ring {
517 	uint32_t		index;		/* Ring index */
518 	uint32_t		intr_vector;	/* Interrupt vector index */
519 
520 	igb_rx_data_t		*rx_data;	/* Rx software ring */
521 
522 	kmutex_t		rx_lock;	/* Rx access lock */
523 
524 	/*
525 	 * Per-ring statistics
526 	 */
527 	uint64_t		rx_pkts;	/* Packets Received Count */
528 	uint64_t		rx_bytes;	/* Bytes Received Count */
529 
530 #ifdef IGB_DEBUG
531 	/*
532 	 * Debug statistics
533 	 */
534 	uint32_t		stat_frame_error;
535 	uint32_t		stat_cksum_error;
536 	uint32_t		stat_exceed_pkt;
537 	uint32_t		stat_pkt_cnt;
538 #endif
539 
540 	struct igb		*igb;		/* Pointer to igb struct */
541 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
542 	uint32_t		group_index;	/* group index */
543 	uint64_t		ring_gen_num;
544 } igb_rx_ring_t;
545 
546 /*
547  * Software Receive Ring Group
548  */
549 typedef struct igb_rx_group {
550 	uint32_t		index;		/* Group index */
551 	mac_group_handle_t	group_handle;   /* call back group handle */
552 	struct igb		*igb;		/* Pointer to igb struct */
553 } igb_rx_group_t;
554 
555 typedef struct igb {
556 	int 			instance;
557 	mac_handle_t		mac_hdl;
558 	dev_info_t		*dip;
559 	struct e1000_hw		hw;
560 	struct igb_osdep	osdep;
561 
562 	adapter_info_t		*capab;		/* adapter capabilities */
563 
564 	uint32_t		igb_state;
565 	link_state_t		link_state;
566 	uint32_t		link_speed;
567 	uint32_t		link_duplex;
568 	uint32_t		link_down_timeout;
569 	boolean_t		link_complete;
570 	timeout_id_t		link_tid;
571 
572 	uint32_t		reset_count;
573 	uint32_t		attach_progress;
574 	uint32_t		loopback_mode;
575 	uint32_t		default_mtu;
576 	uint32_t		max_frame_size;
577 	uint32_t		dout_sync;
578 
579 	uint32_t		rcb_pending;
580 
581 	uint32_t		mr_enable;	/* Enable multiple rings */
582 	uint32_t		vmdq_mode;	/* Mode of VMDq */
583 
584 	/*
585 	 * Receive Rings and Groups
586 	 */
587 	igb_rx_ring_t		*rx_rings;	/* Array of rx rings */
588 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
589 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
590 	uint32_t		rx_buf_size;	/* Rx buffer size */
591 	igb_rx_group_t		*rx_groups;	/* Array of rx groups */
592 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
593 
594 	/*
595 	 * Transmit Rings
596 	 */
597 	igb_tx_ring_t		*tx_rings;	/* Array of tx rings */
598 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
599 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
600 	uint32_t		tx_buf_size;	/* Tx buffer size */
601 
602 	boolean_t		tx_ring_init;
603 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
604 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
605 	boolean_t 		lso_enable; 	/* Large Segment Offload */
606 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
607 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
608 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
609 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
610 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
611 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
612 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
613 
614 	uint32_t		intr_throttling[MAX_NUM_EITR];
615 	uint32_t		intr_force;
616 
617 	int			intr_type;
618 	int			intr_cnt;
619 	int			intr_cap;
620 	size_t			intr_size;
621 	uint_t			intr_pri;
622 	ddi_intr_handle_t	*htable;
623 	uint32_t		eims_mask;
624 	uint32_t		ims_mask;
625 
626 	kmutex_t		gen_lock; /* General lock for device access */
627 	kmutex_t		watchdog_lock;
628 	kmutex_t		link_lock;
629 	kmutex_t		rx_pending_lock;
630 
631 	boolean_t		watchdog_enable;
632 	boolean_t		watchdog_start;
633 	timeout_id_t		watchdog_tid;
634 
635 	boolean_t		unicst_init;
636 	uint32_t		unicst_avail;
637 	uint32_t		unicst_total;
638 	igb_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
639 	uint32_t		mcast_count;
640 	uint32_t		mcast_alloc_count;
641 	uint32_t		mcast_max_num;
642 	struct ether_addr	*mcast_table;
643 
644 	/*
645 	 * Kstat definitions
646 	 */
647 	kstat_t			*igb_ks;
648 
649 	uint32_t		param_en_1000fdx_cap:1,
650 				param_en_1000hdx_cap:1,
651 				param_en_100t4_cap:1,
652 				param_en_100fdx_cap:1,
653 				param_en_100hdx_cap:1,
654 				param_en_10fdx_cap:1,
655 				param_en_10hdx_cap:1,
656 				param_1000fdx_cap:1,
657 				param_1000hdx_cap:1,
658 				param_100t4_cap:1,
659 				param_100fdx_cap:1,
660 				param_100hdx_cap:1,
661 				param_10fdx_cap:1,
662 				param_10hdx_cap:1,
663 				param_autoneg_cap:1,
664 				param_pause_cap:1,
665 				param_asym_pause_cap:1,
666 				param_rem_fault:1,
667 				param_adv_1000fdx_cap:1,
668 				param_adv_1000hdx_cap:1,
669 				param_adv_100t4_cap:1,
670 				param_adv_100fdx_cap:1,
671 				param_adv_100hdx_cap:1,
672 				param_adv_10fdx_cap:1,
673 				param_adv_10hdx_cap:1,
674 				param_adv_autoneg_cap:1,
675 				param_adv_pause_cap:1,
676 				param_adv_asym_pause_cap:1,
677 				param_adv_rem_fault:1,
678 				param_lp_1000fdx_cap:1,
679 				param_lp_1000hdx_cap:1,
680 				param_lp_100t4_cap:1;
681 
682 	uint32_t		param_lp_100fdx_cap:1,
683 				param_lp_100hdx_cap:1,
684 				param_lp_10fdx_cap:1,
685 				param_lp_10hdx_cap:1,
686 				param_lp_autoneg_cap:1,
687 				param_lp_pause_cap:1,
688 				param_lp_asym_pause_cap:1,
689 				param_lp_rem_fault:1,
690 				param_pad_to_32:24;
691 
692 	/*
693 	 * FMA capabilities
694 	 */
695 	int			fm_capabilities;
696 
697 	ulong_t			page_size;
698 } igb_t;
699 
700 typedef struct igb_stat {
701 
702 	kstat_named_t link_speed;	/* Link Speed */
703 	kstat_named_t reset_count;	/* Reset Count */
704 	kstat_named_t dout_sync;	/* DMA out of sync */
705 #ifdef IGB_DEBUG
706 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
707 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
708 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
709 
710 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
711 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
712 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
713 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
714 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
715 
716 	kstat_named_t gprc;	/* Good Packets Received Count */
717 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
718 	kstat_named_t gor;	/* Good Octets Received Count */
719 	kstat_named_t got;	/* Good Octets Xmitd Count */
720 	kstat_named_t prc64;	/* Packets Received - 64b */
721 	kstat_named_t prc127;	/* Packets Received - 65-127b */
722 	kstat_named_t prc255;	/* Packets Received - 127-255b */
723 	kstat_named_t prc511;	/* Packets Received - 256-511b */
724 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
725 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
726 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
727 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
728 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
729 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
730 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
731 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
732 #endif
733 	kstat_named_t crcerrs;	/* CRC Error Count */
734 	kstat_named_t symerrs;	/* Symbol Error Count */
735 	kstat_named_t mpc;	/* Missed Packet Count */
736 	kstat_named_t scc;	/* Single Collision Count */
737 	kstat_named_t ecol;	/* Excessive Collision Count */
738 	kstat_named_t mcc;	/* Multiple Collision Count */
739 	kstat_named_t latecol;	/* Late Collision Count */
740 	kstat_named_t colc;	/* Collision Count */
741 	kstat_named_t dc;	/* Defer Count */
742 	kstat_named_t sec;	/* Sequence Error Count */
743 	kstat_named_t rlec;	/* Receive Length Error Count */
744 	kstat_named_t xonrxc;	/* XON Received Count */
745 	kstat_named_t xontxc;	/* XON Xmitted Count */
746 	kstat_named_t xoffrxc;	/* XOFF Received Count */
747 	kstat_named_t xofftxc;	/* Xoff Xmitted Count */
748 	kstat_named_t fcruc;	/* Unknown Flow Conrol Packet Rcvd Count */
749 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
750 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
751 	kstat_named_t rnbc;	/* Receive No Buffers Count */
752 	kstat_named_t ruc;	/* Receive Undersize Count */
753 	kstat_named_t rfc;	/* Receive Frag Count */
754 	kstat_named_t roc;	/* Receive Oversize Count */
755 	kstat_named_t rjc;	/* Receive Jabber Count */
756 	kstat_named_t tor;	/* Total Octets Recvd Count */
757 	kstat_named_t tot;	/* Total Octets Xmted Count */
758 	kstat_named_t tpr;	/* Total Packets Received */
759 	kstat_named_t tpt;	/* Total Packets Xmitted */
760 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
761 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
762 	kstat_named_t algnerrc;	/* Alignment Error count */
763 	kstat_named_t rxerrc;	/* Rx Error Count */
764 	kstat_named_t tncrs;	/* Transmit with no CRS */
765 	kstat_named_t cexterr;	/* Carrier Extension Error count */
766 	kstat_named_t tsctc;	/* TCP seg contexts xmit count */
767 	kstat_named_t tsctfc;	/* TCP seg contexts xmit fail count */
768 } igb_stat_t;
769 
770 /*
771  * Function prototypes in e1000_osdep.c
772  */
773 void e1000_write_pci_cfg(struct e1000_hw *, uint32_t, uint16_t *);
774 void e1000_read_pci_cfg(struct e1000_hw *, uint32_t, uint16_t *);
775 int32_t e1000_read_pcie_cap_reg(struct e1000_hw *, uint32_t, uint16_t *);
776 int32_t e1000_write_pcie_cap_reg(struct e1000_hw *, uint32_t, uint16_t *);
777 void e1000_rar_clear(struct e1000_hw *, uint32_t);
778 void e1000_rar_set_vmdq(struct e1000_hw *, const uint8_t *, uint32_t,
779     uint32_t, uint8_t);
780 
781 /*
782  * Function prototypes in igb_buf.c
783  */
784 int igb_alloc_dma(igb_t *);
785 void igb_free_dma(igb_t *);
786 void igb_free_dma_buffer(dma_buffer_t *);
787 int igb_alloc_rx_ring_data(igb_rx_ring_t *rx_ring);
788 void igb_free_rx_ring_data(igb_rx_data_t *rx_data);
789 
790 /*
791  * Function prototypes in igb_main.c
792  */
793 int igb_start(igb_t *, boolean_t);
794 void igb_stop(igb_t *, boolean_t);
795 int igb_setup_link(igb_t *, boolean_t);
796 int igb_unicst_find(igb_t *, const uint8_t *);
797 int igb_unicst_set(igb_t *, const uint8_t *, int);
798 int igb_multicst_add(igb_t *, const uint8_t *);
799 int igb_multicst_remove(igb_t *, const uint8_t *);
800 enum ioc_reply igb_loopback_ioctl(igb_t *, struct iocblk *, mblk_t *);
801 void igb_enable_watchdog_timer(igb_t *);
802 void igb_disable_watchdog_timer(igb_t *);
803 int igb_atomic_reserve(uint32_t *, uint32_t);
804 int igb_check_acc_handle(ddi_acc_handle_t);
805 int igb_check_dma_handle(ddi_dma_handle_t);
806 void igb_fm_ereport(igb_t *, char *);
807 void igb_set_fma_flags(int);
808 
809 /*
810  * Function prototypes in igb_gld.c
811  */
812 int igb_m_start(void *);
813 void igb_m_stop(void *);
814 int igb_m_promisc(void *, boolean_t);
815 int igb_m_multicst(void *, boolean_t, const uint8_t *);
816 int igb_m_unicst(void *, const uint8_t *);
817 int igb_m_stat(void *, uint_t, uint64_t *);
818 void igb_m_resources(void *);
819 void igb_m_ioctl(void *, queue_t *, mblk_t *);
820 boolean_t igb_m_getcapab(void *, mac_capab_t, void *);
821 void igb_fill_ring(void *, mac_ring_type_t, const int, const int,
822     mac_ring_info_t *, mac_ring_handle_t);
823 int igb_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
824 int igb_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *);
825 void igb_m_propinfo(void *, const char *, mac_prop_id_t,
826     mac_prop_info_handle_t);
827 int igb_set_priv_prop(igb_t *, const char *, uint_t, const void *);
828 int igb_get_priv_prop(igb_t *, const char *, uint_t, void *);
829 void igb_priv_prop_info(igb_t *, const char *, mac_prop_info_handle_t);
830 boolean_t igb_param_locked(mac_prop_id_t);
831 void igb_fill_group(void *arg, mac_ring_type_t, const int,
832     mac_group_info_t *, mac_group_handle_t);
833 int igb_rx_ring_intr_enable(mac_intr_handle_t);
834 int igb_rx_ring_intr_disable(mac_intr_handle_t);
835 int igb_get_def_val(igb_t *, mac_prop_id_t, uint_t, void *);
836 
837 /*
838  * Function prototypes in igb_rx.c
839  */
840 mblk_t *igb_rx(igb_rx_ring_t *, int);
841 void igb_rx_recycle(caddr_t arg);
842 
843 /*
844  * Function prototypes in igb_tx.c
845  */
846 void igb_free_tcb(tx_control_block_t *);
847 void igb_put_free_list(igb_tx_ring_t *, link_list_t *);
848 uint32_t igb_tx_recycle_legacy(igb_tx_ring_t *);
849 uint32_t igb_tx_recycle_head_wb(igb_tx_ring_t *);
850 
851 /*
852  * Function prototypes in igb_log.c
853  */
854 void igb_notice(void *, const char *, ...);
855 void igb_log(void *, const char *, ...);
856 void igb_error(void *, const char *, ...);
857 
858 /*
859  * Function prototypes in igb_stat.c
860  */
861 int igb_init_stats(igb_t *);
862 
863 mblk_t *igb_rx_ring_poll(void *, int);
864 mblk_t *igb_tx_ring_send(void *, mblk_t *);
865 int igb_rx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
866 int igb_tx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
867 
868 #ifdef __cplusplus
869 }
870 #endif
871 
872 #endif /* _IGB_SW_H */
873