xref: /titanic_44/usr/src/uts/common/io/igb/igb_sw.h (revision d4d1f7bf736e9deaf99b53c54fc31cecd3a9e435)
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 2009 Sun Microsystems, Inc.  All rights reserved.
26  * Use is subject to license terms of the CDDL.
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/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 
84 #define	IGB_INTR_NONE			0
85 #define	IGB_INTR_MSIX			1
86 #define	IGB_INTR_MSI			2
87 #define	IGB_INTR_LEGACY			3
88 
89 #define	IGB_ADAPTER_REGSET		1	/* mapping adapter registers */
90 #define	IGB_ADAPTER_MSIXTAB		4	/* mapping msi-x table */
91 
92 #define	IGB_NO_POLL			-1
93 #define	IGB_NO_FREE_SLOT		-1
94 
95 #define	MAX_NUM_UNICAST_ADDRESSES	E1000_RAR_ENTRIES
96 #define	MAX_NUM_MULTICAST_ADDRESSES	256
97 #define	MAX_COOKIE			16
98 #define	MIN_NUM_TX_DESC			2
99 
100 /*
101  * Number of settings for interrupt throttle rate (ITR).  There is one of
102  * these per msi-x vector and it needs to be the maximum of all silicon
103  * types supported by this driver.
104  */
105 #define	MAX_NUM_EITR			25
106 
107 /*
108  * Maximum values for user configurable parameters
109  */
110 #define	MAX_TX_RING_SIZE		4096
111 #define	MAX_RX_RING_SIZE		4096
112 #define	MAX_RX_GROUP_NUM		4
113 
114 #define	MAX_MTU				9000
115 #define	MAX_RX_LIMIT_PER_INTR		4096
116 #define	MAX_RX_INTR_DELAY		65535
117 #define	MAX_RX_INTR_ABS_DELAY		65535
118 #define	MAX_TX_INTR_DELAY		65535
119 #define	MAX_TX_INTR_ABS_DELAY		65535
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 
127 /*
128  * Minimum values for user configurable parameters
129  */
130 #define	MIN_TX_RING_SIZE		64
131 #define	MIN_RX_RING_SIZE		64
132 #define	MIN_RX_GROUP_NUM		1
133 
134 #define	MIN_MTU				ETHERMIN
135 #define	MIN_RX_LIMIT_PER_INTR		16
136 #define	MIN_RX_INTR_DELAY		0
137 #define	MIN_RX_INTR_ABS_DELAY		0
138 #define	MIN_TX_INTR_DELAY		0
139 #define	MIN_TX_INTR_ABS_DELAY		0
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 
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 #define	DEFAULT_RX_INTR_DELAY		0
156 #define	DEFAULT_RX_INTR_ABS_DELAY	0
157 #define	DEFAULT_TX_INTR_DELAY		300
158 #define	DEFAULT_TX_INTR_ABS_DELAY	0
159 #define	DEFAULT_RX_COPY_THRESHOLD	128
160 #define	DEFAULT_TX_COPY_THRESHOLD	512
161 #define	DEFAULT_TX_RECYCLE_THRESHOLD	MAX_COOKIE
162 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
163 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
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		0x0080	/* Device initialized */
187 #define	ATTACH_PROGRESS_INIT_RINGS	0x0100	/* Rings initialized */
188 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
189 #define	ATTACH_PROGRESS_NDD		0x0400	/* NDD initialized */
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 
221 #define	IGB_LB_NONE			0
222 #define	IGB_LB_EXTERNAL			1
223 #define	IGB_LB_INTERNAL_MAC		2
224 #define	IGB_LB_INTERNAL_PHY		3
225 #define	IGB_LB_INTERNAL_SERDES		4
226 
227 /*
228  * Shorthand for the NDD parameters
229  */
230 #define	param_autoneg_cap	nd_params[PARAM_AUTONEG_CAP].val
231 #define	param_pause_cap		nd_params[PARAM_PAUSE_CAP].val
232 #define	param_asym_pause_cap	nd_params[PARAM_ASYM_PAUSE_CAP].val
233 #define	param_1000fdx_cap	nd_params[PARAM_1000FDX_CAP].val
234 #define	param_1000hdx_cap	nd_params[PARAM_1000HDX_CAP].val
235 #define	param_100t4_cap		nd_params[PARAM_100T4_CAP].val
236 #define	param_100fdx_cap	nd_params[PARAM_100FDX_CAP].val
237 #define	param_100hdx_cap	nd_params[PARAM_100HDX_CAP].val
238 #define	param_10fdx_cap		nd_params[PARAM_10FDX_CAP].val
239 #define	param_10hdx_cap		nd_params[PARAM_10HDX_CAP].val
240 #define	param_rem_fault		nd_params[PARAM_REM_FAULT].val
241 
242 #define	param_adv_autoneg_cap	nd_params[PARAM_ADV_AUTONEG_CAP].val
243 #define	param_adv_pause_cap	nd_params[PARAM_ADV_PAUSE_CAP].val
244 #define	param_adv_asym_pause_cap nd_params[PARAM_ADV_ASYM_PAUSE_CAP].val
245 #define	param_adv_1000fdx_cap	nd_params[PARAM_ADV_1000FDX_CAP].val
246 #define	param_adv_1000hdx_cap	nd_params[PARAM_ADV_1000HDX_CAP].val
247 #define	param_adv_100t4_cap	nd_params[PARAM_ADV_100T4_CAP].val
248 #define	param_adv_100fdx_cap	nd_params[PARAM_ADV_100FDX_CAP].val
249 #define	param_adv_100hdx_cap	nd_params[PARAM_ADV_100HDX_CAP].val
250 #define	param_adv_10fdx_cap	nd_params[PARAM_ADV_10FDX_CAP].val
251 #define	param_adv_10hdx_cap	nd_params[PARAM_ADV_10HDX_CAP].val
252 #define	param_adv_rem_fault	nd_params[PARAM_ADV_REM_FAULT].val
253 
254 #define	param_lp_autoneg_cap	nd_params[PARAM_LP_AUTONEG_CAP].val
255 #define	param_lp_pause_cap	nd_params[PARAM_LP_PAUSE_CAP].val
256 #define	param_lp_asym_pause_cap	nd_params[PARAM_LP_ASYM_PAUSE_CAP].val
257 #define	param_lp_1000fdx_cap	nd_params[PARAM_LP_1000FDX_CAP].val
258 #define	param_lp_1000hdx_cap	nd_params[PARAM_LP_1000HDX_CAP].val
259 #define	param_lp_100t4_cap	nd_params[PARAM_LP_100T4_CAP].val
260 #define	param_lp_100fdx_cap	nd_params[PARAM_LP_100FDX_CAP].val
261 #define	param_lp_100hdx_cap	nd_params[PARAM_LP_100HDX_CAP].val
262 #define	param_lp_10fdx_cap	nd_params[PARAM_LP_10FDX_CAP].val
263 #define	param_lp_10hdx_cap	nd_params[PARAM_LP_10HDX_CAP].val
264 #define	param_lp_rem_fault	nd_params[PARAM_LP_REM_FAULT].val
265 
266 enum ioc_reply {
267 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
268 	IOC_DONE, 	/* OK, reply sent */
269 	IOC_ACK,	/* OK, just send ACK */
270 	IOC_REPLY	/* OK, just send reply */
271 };
272 
273 #define	MBLK_LEN(mp)		((uintptr_t)(mp)->b_wptr - \
274 				(uintptr_t)(mp)->b_rptr)
275 
276 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
277 				    0, 0, (flag)))
278 
279 /*
280  * Defined for ring index operations
281  * ASSERT(index < limit)
282  * ASSERT(step < limit)
283  * ASSERT(index1 < limit)
284  * ASSERT(index2 < limit)
285  */
286 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
287 	(index) + (step) : (index) + (step) - (limit))
288 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
289 	(index) - (step) : (index) + (limit) - (step))
290 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
291 	(index2) - (index1) : (index2) + (limit) - (index1))
292 
293 #define	LINK_LIST_INIT(_LH)	\
294 	(_LH)->head = (_LH)->tail = NULL
295 
296 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
297 
298 #define	LIST_POP_HEAD(_LH)	\
299 	(single_link_t *)(_LH)->head; \
300 	{ \
301 		if ((_LH)->head != NULL) { \
302 			(_LH)->head = (_LH)->head->link; \
303 			if ((_LH)->head == NULL) \
304 				(_LH)->tail = NULL; \
305 		} \
306 	}
307 
308 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
309 
310 #define	LIST_PUSH_TAIL(_LH, _E)	\
311 	if ((_LH)->tail != NULL) { \
312 		(_LH)->tail->link = (single_link_t *)(_E); \
313 		(_LH)->tail = (single_link_t *)(_E); \
314 	} else { \
315 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
316 	} \
317 	(_E)->link = NULL;
318 
319 #define	LIST_GET_NEXT(_LH, _E)		\
320 	(((_LH)->tail == (single_link_t *)(_E)) ? \
321 	NULL : ((single_link_t *)(_E))->link)
322 
323 
324 typedef struct single_link {
325 	struct single_link	*link;
326 } single_link_t;
327 
328 typedef struct link_list {
329 	single_link_t		*head;
330 	single_link_t		*tail;
331 } link_list_t;
332 
333 /*
334  * Property lookups
335  */
336 #define	IGB_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
337 				    DDI_PROP_DONTPASS, (n))
338 #define	IGB_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
339 				    DDI_PROP_DONTPASS, (n), -1)
340 
341 
342 /* capability/feature flags */
343 #define	IGB_FLAG_HAS_DCA	(1 << 0) /* has Direct Cache Access */
344 #define	IGB_FLAG_VMDQ_POOL	(1 << 1) /* has vmdq capability */
345 #define	IGB_FLAG_NEED_CTX_IDX	(1 << 2) /* context descriptor needs index */
346 
347 /* function pointer for nic-specific functions */
348 typedef void (*igb_nic_func_t)(struct igb *);
349 
350 /* adapter-specific info for each supported device type */
351 typedef struct adapter_info {
352 	/* limits */
353 	uint32_t	max_rx_que_num;	/* maximum number of rx queues */
354 	uint32_t	min_rx_que_num;	/* minimum number of rx queues */
355 	uint32_t	def_rx_que_num;	/* default number of rx queues */
356 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
357 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
358 	uint32_t	def_tx_que_num;	/* default number of tx queues */
359 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
360 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
361 	uint32_t	def_intr_throttle; /* default interrupt throttle */
362 	/* function pointers */
363 	igb_nic_func_t	enable_intr;	/* enable adapter interrupts */
364 	igb_nic_func_t	setup_msix;	/* set up msi-x vectors */
365 	/* capabilities */
366 	uint32_t	flags;		/* capability flags */
367 } adapter_info_t;
368 
369 /*
370  * Named Data (ND) Parameter Management Structure
371  */
372 typedef struct {
373 	struct igb *private;
374 	uint32_t info;
375 	uint32_t min;
376 	uint32_t max;
377 	uint32_t val;
378 	char *name;
379 } nd_param_t;
380 
381 /*
382  * NDD parameter indexes, divided into:
383  *
384  *	read-only parameters describing the hardware's capabilities
385  *	read-write parameters controlling the advertised capabilities
386  *	read-only parameters describing the partner's capabilities
387  *	read-write parameters controlling the force speed and duplex
388  *	read-only parameters describing the link state
389  *	read-only parameters describing the driver properties
390  *	read-write parameters controlling the driver properties
391  */
392 enum {
393 	PARAM_AUTONEG_CAP,
394 	PARAM_PAUSE_CAP,
395 	PARAM_ASYM_PAUSE_CAP,
396 	PARAM_1000FDX_CAP,
397 	PARAM_1000HDX_CAP,
398 	PARAM_100T4_CAP,
399 	PARAM_100FDX_CAP,
400 	PARAM_100HDX_CAP,
401 	PARAM_10FDX_CAP,
402 	PARAM_10HDX_CAP,
403 	PARAM_REM_FAULT,
404 
405 	PARAM_ADV_AUTONEG_CAP,
406 	PARAM_ADV_PAUSE_CAP,
407 	PARAM_ADV_ASYM_PAUSE_CAP,
408 	PARAM_ADV_1000FDX_CAP,
409 	PARAM_ADV_1000HDX_CAP,
410 	PARAM_ADV_100T4_CAP,
411 	PARAM_ADV_100FDX_CAP,
412 	PARAM_ADV_100HDX_CAP,
413 	PARAM_ADV_10FDX_CAP,
414 	PARAM_ADV_10HDX_CAP,
415 	PARAM_ADV_REM_FAULT,
416 
417 	PARAM_LP_AUTONEG_CAP,
418 	PARAM_LP_PAUSE_CAP,
419 	PARAM_LP_ASYM_PAUSE_CAP,
420 	PARAM_LP_1000FDX_CAP,
421 	PARAM_LP_1000HDX_CAP,
422 	PARAM_LP_100T4_CAP,
423 	PARAM_LP_100FDX_CAP,
424 	PARAM_LP_100HDX_CAP,
425 	PARAM_LP_10FDX_CAP,
426 	PARAM_LP_10HDX_CAP,
427 	PARAM_LP_REM_FAULT,
428 
429 	PARAM_LINK_STATUS,
430 	PARAM_LINK_SPEED,
431 	PARAM_LINK_DUPLEX,
432 
433 	PARAM_COUNT
434 };
435 
436 typedef union igb_ether_addr {
437 	struct {
438 		uint32_t	high;
439 		uint32_t	low;
440 	} reg;
441 	struct {
442 		uint8_t		set;
443 		uint8_t		group_index;
444 		uint8_t		addr[ETHERADDRL];
445 	} mac;
446 } igb_ether_addr_t;
447 
448 typedef enum {
449 	USE_NONE,
450 	USE_COPY,
451 	USE_DMA
452 } tx_type_t;
453 
454 typedef enum {
455 	RCB_FREE,
456 	RCB_SENDUP
457 } rcb_state_t;
458 
459 typedef struct hcksum_context {
460 	uint32_t		hcksum_flags;
461 	uint32_t		ip_hdr_len;
462 	uint32_t		mac_hdr_len;
463 	uint32_t		l4_proto;
464 } hcksum_context_t;
465 
466 /* Hold address/length of each DMA segment */
467 typedef struct sw_desc {
468 	uint64_t		address;
469 	size_t			length;
470 } sw_desc_t;
471 
472 /* Handles and addresses of DMA buffer */
473 typedef struct dma_buffer {
474 	caddr_t			address;	/* Virtual address */
475 	uint64_t		dma_address;	/* DMA (Hardware) address */
476 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
477 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
478 	size_t			size;		/* Buffer size */
479 	size_t			len;		/* Data length in the buffer */
480 } dma_buffer_t;
481 
482 /*
483  * Tx Control Block
484  */
485 typedef struct tx_control_block {
486 	single_link_t		link;
487 	uint32_t		frag_num;
488 	uint32_t		desc_num;
489 	mblk_t			*mp;
490 	tx_type_t		tx_type;
491 	ddi_dma_handle_t	tx_dma_handle;
492 	dma_buffer_t		tx_buf;
493 	sw_desc_t		desc[MAX_COOKIE];
494 } tx_control_block_t;
495 
496 /*
497  * RX Control Block
498  */
499 typedef struct rx_control_block {
500 	mblk_t			*mp;
501 	rcb_state_t		state;
502 	dma_buffer_t		rx_buf;
503 	frtn_t			free_rtn;
504 	struct igb_rx_ring	*rx_ring;
505 } rx_control_block_t;
506 
507 /*
508  * Software Data Structure for Tx Ring
509  */
510 typedef struct igb_tx_ring {
511 	uint32_t		index;	/* Ring index */
512 	uint32_t		intr_vector;	/* Interrupt vector index */
513 
514 	/*
515 	 * Mutexes
516 	 */
517 	kmutex_t		tx_lock;
518 	kmutex_t		recycle_lock;
519 	kmutex_t		tcb_head_lock;
520 	kmutex_t		tcb_tail_lock;
521 
522 	/*
523 	 * Tx descriptor ring definitions
524 	 */
525 	dma_buffer_t		tbd_area;
526 	union e1000_adv_tx_desc	*tbd_ring;
527 	uint32_t		tbd_head; /* Index of next tbd to recycle */
528 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
529 	uint32_t		tbd_free; /* Number of free tbd */
530 
531 	/*
532 	 * Tx control block list definitions
533 	 */
534 	tx_control_block_t	*tcb_area;
535 	tx_control_block_t	**work_list;
536 	tx_control_block_t	**free_list;
537 	uint32_t		tcb_head; /* Head index of free list */
538 	uint32_t		tcb_tail; /* Tail index of free list */
539 	uint32_t		tcb_free; /* Number of free tcb in free list */
540 
541 	uint32_t		*tbd_head_wb; /* Head write-back */
542 	uint32_t		(*tx_recycle)(struct igb_tx_ring *);
543 
544 	/*
545 	 * TCP/UDP checksum offload
546 	 */
547 	hcksum_context_t	hcksum_context;
548 
549 	/*
550 	 * Tx ring settings and status
551 	 */
552 	uint32_t		ring_size; /* Tx descriptor ring size */
553 	uint32_t		free_list_size;	/* Tx free list size */
554 	uint32_t		copy_thresh;
555 	uint32_t		recycle_thresh;
556 	uint32_t		overload_thresh;
557 	uint32_t		resched_thresh;
558 
559 	boolean_t		reschedule;
560 	uint32_t		recycle_fail;
561 	uint32_t		stall_watchdog;
562 
563 #ifdef IGB_DEBUG
564 	/*
565 	 * Debug statistics
566 	 */
567 	uint32_t		stat_overload;
568 	uint32_t		stat_fail_no_tbd;
569 	uint32_t		stat_fail_no_tcb;
570 	uint32_t		stat_fail_dma_bind;
571 	uint32_t		stat_reschedule;
572 	uint32_t		stat_pkt_cnt;
573 #endif
574 
575 	/*
576 	 * Pointer to the igb struct
577 	 */
578 	struct igb		*igb;
579 	mac_ring_handle_t	ring_handle;	/* call back ring handle */
580 } igb_tx_ring_t;
581 
582 /*
583  * Software Receive Ring
584  */
585 typedef struct igb_rx_ring {
586 	uint32_t		index;		/* Ring index */
587 	uint32_t		intr_vector;	/* Interrupt vector index */
588 
589 	/*
590 	 * Mutexes
591 	 */
592 	kmutex_t		rx_lock;	/* Rx access lock */
593 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
594 
595 	/*
596 	 * Rx descriptor ring definitions
597 	 */
598 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
599 	union e1000_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
600 	uint32_t		rbd_next;	/* Index of next rx desc */
601 
602 	/*
603 	 * Rx control block list definitions
604 	 */
605 	rx_control_block_t	*rcb_area;
606 	rx_control_block_t	**work_list;	/* Work list of rcbs */
607 	rx_control_block_t	**free_list;	/* Free list of rcbs */
608 	uint32_t		rcb_head;	/* Index of next free rcb */
609 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
610 	uint32_t		rcb_free;	/* Number of free rcbs */
611 
612 	/*
613 	 * Rx ring settings and status
614 	 */
615 	uint32_t		ring_size;	/* Rx descriptor ring size */
616 	uint32_t		free_list_size;	/* Rx free list size */
617 	uint32_t		limit_per_intr;	/* Max packets per interrupt */
618 	uint32_t		copy_thresh;
619 
620 #ifdef IGB_DEBUG
621 	/*
622 	 * Debug statistics
623 	 */
624 	uint32_t		stat_frame_error;
625 	uint32_t		stat_cksum_error;
626 	uint32_t		stat_exceed_pkt;
627 	uint32_t		stat_pkt_cnt;
628 #endif
629 
630 	struct igb		*igb;		/* Pointer to igb struct */
631 	mac_ring_handle_t	ring_handle; /* call back ring handle */
632 	uint32_t		group_index;	/* group index */
633 	uint64_t		ring_gen_num;
634 } igb_rx_ring_t;
635 
636 /*
637  * Software Receive Ring Group
638  */
639 typedef struct igb_rx_group {
640 	uint32_t		index;		/* Group index */
641 	mac_group_handle_t	group_handle;   /* call back group handle */
642 	struct igb		*igb;		/* Pointer to igb struct */
643 } igb_rx_group_t;
644 
645 typedef struct igb {
646 	int 			instance;
647 	mac_handle_t		mac_hdl;
648 	dev_info_t		*dip;
649 	struct e1000_hw		hw;
650 	struct igb_osdep	osdep;
651 
652 	adapter_info_t		*capab;		/* adapter capabilities */
653 
654 	uint32_t		igb_state;
655 	link_state_t		link_state;
656 	uint32_t		link_speed;
657 	uint32_t		link_duplex;
658 	uint32_t		link_down_timeout;
659 
660 	uint32_t		reset_count;
661 	uint32_t		attach_progress;
662 	uint32_t		loopback_mode;
663 	uint32_t		max_frame_size;
664 
665 	uint32_t		mr_enable;	/* Enable multiple rings */
666 	uint32_t		vmdq_mode;	/* Mode of VMDq */
667 
668 	/*
669 	 * Receive Rings and Groups
670 	 */
671 	igb_rx_ring_t		*rx_rings;	/* Array of rx rings */
672 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
673 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
674 	uint32_t		rx_buf_size;	/* Rx buffer size */
675 	igb_rx_group_t		*rx_groups;	/* Array of rx groups */
676 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
677 
678 	/*
679 	 * Transmit Rings
680 	 */
681 	igb_tx_ring_t		*tx_rings;	/* Array of tx rings */
682 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
683 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
684 	uint32_t		tx_buf_size;	/* Tx buffer size */
685 
686 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
687 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
688 	boolean_t 		lso_enable; 	/* Large Segment Offload */
689 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
690 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
691 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
692 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
693 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
694 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
695 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
696 	uint32_t		intr_throttling[MAX_NUM_EITR];
697 	uint32_t		intr_force;
698 
699 	int			intr_type;
700 	int			intr_cnt;
701 	int			intr_cap;
702 	size_t			intr_size;
703 	uint_t			intr_pri;
704 	ddi_intr_handle_t	*htable;
705 	uint32_t		eims_mask;
706 	uint32_t		ims_mask;
707 
708 	kmutex_t		gen_lock; /* General lock for device access */
709 	kmutex_t		watchdog_lock;
710 
711 	boolean_t		watchdog_enable;
712 	boolean_t		watchdog_start;
713 	timeout_id_t		watchdog_tid;
714 
715 	boolean_t		unicst_init;
716 	uint32_t		unicst_avail;
717 	uint32_t		unicst_total;
718 	igb_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
719 	uint32_t		mcast_count;
720 	struct ether_addr	mcast_table[MAX_NUM_MULTICAST_ADDRESSES];
721 
722 	/*
723 	 * Kstat definitions
724 	 */
725 	kstat_t			*igb_ks;
726 
727 	/*
728 	 * NDD definitions
729 	 */
730 	caddr_t			nd_data;
731 	nd_param_t		nd_params[PARAM_COUNT];
732 
733 	/*
734 	 * FMA capabilities
735 	 */
736 	int			fm_capabilities;
737 
738 } igb_t;
739 
740 typedef struct igb_stat {
741 
742 	kstat_named_t link_speed;	/* Link Speed */
743 #ifdef IGB_DEBUG
744 	kstat_named_t reset_count;	/* Reset Count */
745 
746 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
747 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
748 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
749 
750 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
751 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
752 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
753 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
754 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
755 
756 	kstat_named_t gprc;	/* Good Packets Received Count */
757 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
758 	kstat_named_t gor;	/* Good Octets Received Count */
759 	kstat_named_t got;	/* Good Octets Xmitd Count */
760 	kstat_named_t prc64;	/* Packets Received - 64b */
761 	kstat_named_t prc127;	/* Packets Received - 65-127b */
762 	kstat_named_t prc255;	/* Packets Received - 127-255b */
763 	kstat_named_t prc511;	/* Packets Received - 256-511b */
764 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
765 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
766 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
767 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
768 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
769 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
770 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
771 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
772 #endif
773 	kstat_named_t crcerrs;	/* CRC Error Count */
774 	kstat_named_t symerrs;	/* Symbol Error Count */
775 	kstat_named_t mpc;	/* Missed Packet Count */
776 	kstat_named_t scc;	/* Single Collision Count */
777 	kstat_named_t ecol;	/* Excessive Collision Count */
778 	kstat_named_t mcc;	/* Multiple Collision Count */
779 	kstat_named_t latecol;	/* Late Collision Count */
780 	kstat_named_t colc;	/* Collision Count */
781 	kstat_named_t dc;	/* Defer Count */
782 	kstat_named_t sec;	/* Sequence Error Count */
783 	kstat_named_t rlec;	/* Receive Length Error Count */
784 	kstat_named_t xonrxc;	/* XON Received Count */
785 	kstat_named_t xontxc;	/* XON Xmitted Count */
786 	kstat_named_t xoffrxc;	/* XOFF Received Count */
787 	kstat_named_t xofftxc;	/* Xoff Xmitted Count */
788 	kstat_named_t fcruc;	/* Unknown Flow Conrol Packet Rcvd Count */
789 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
790 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
791 	kstat_named_t rnbc;	/* Receive No Buffers Count */
792 	kstat_named_t ruc;	/* Receive Undersize Count */
793 	kstat_named_t rfc;	/* Receive Frag Count */
794 	kstat_named_t roc;	/* Receive Oversize Count */
795 	kstat_named_t rjc;	/* Receive Jabber Count */
796 	kstat_named_t tor;	/* Total Octets Recvd Count */
797 	kstat_named_t tot;	/* Total Octets Xmted Count */
798 	kstat_named_t tpr;	/* Total Packets Received */
799 	kstat_named_t tpt;	/* Total Packets Xmitted */
800 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
801 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
802 	kstat_named_t algnerrc;	/* Alignment Error count */
803 	kstat_named_t rxerrc;	/* Rx Error Count */
804 	kstat_named_t tncrs;	/* Transmit with no CRS */
805 	kstat_named_t cexterr;	/* Carrier Extension Error count */
806 	kstat_named_t tsctc;	/* TCP seg contexts xmit count */
807 	kstat_named_t tsctfc;	/* TCP seg contexts xmit fail count */
808 } igb_stat_t;
809 
810 /*
811  * Function prototypes in e1000_osdep.c
812  */
813 void e1000_enable_pciex_master(struct e1000_hw *);
814 void e1000_rar_clear(struct e1000_hw *hw, uint32_t);
815 void e1000_rar_set_vmdq(struct e1000_hw *hw, const uint8_t *, uint32_t,
816     uint32_t, uint8_t);
817 
818 /*
819  * Function prototypes in igb_buf.c
820  */
821 int igb_alloc_dma(igb_t *);
822 void igb_free_dma(igb_t *);
823 
824 /*
825  * Function prototypes in igb_main.c
826  */
827 int igb_start(igb_t *);
828 void igb_stop(igb_t *);
829 int igb_setup_link(igb_t *, boolean_t);
830 int igb_unicst_find(igb_t *, const uint8_t *);
831 int igb_unicst_set(igb_t *, const uint8_t *, int);
832 int igb_multicst_add(igb_t *, const uint8_t *);
833 int igb_multicst_remove(igb_t *, const uint8_t *);
834 enum ioc_reply igb_loopback_ioctl(igb_t *, struct iocblk *, mblk_t *);
835 void igb_enable_watchdog_timer(igb_t *);
836 void igb_disable_watchdog_timer(igb_t *);
837 int igb_atomic_reserve(uint32_t *, uint32_t);
838 int igb_check_acc_handle(ddi_acc_handle_t);
839 int igb_check_dma_handle(ddi_dma_handle_t);
840 void igb_fm_ereport(igb_t *, char *);
841 void igb_set_fma_flags(int, int);
842 
843 /*
844  * Function prototypes in igb_gld.c
845  */
846 int igb_m_start(void *);
847 void igb_m_stop(void *);
848 int igb_m_promisc(void *, boolean_t);
849 int igb_m_multicst(void *, boolean_t, const uint8_t *);
850 int igb_m_unicst(void *, const uint8_t *);
851 int igb_m_stat(void *, uint_t, uint64_t *);
852 void igb_m_resources(void *);
853 void igb_m_ioctl(void *, queue_t *, mblk_t *);
854 boolean_t igb_m_getcapab(void *, mac_capab_t, void *);
855 void igb_fill_ring(void *, mac_ring_type_t, const int, const int,
856     mac_ring_info_t *, mac_ring_handle_t);
857 void igb_fill_group(void *arg, mac_ring_type_t, const int,
858     mac_group_info_t *, mac_group_handle_t);
859 int igb_rx_ring_intr_enable(mac_intr_handle_t);
860 int igb_rx_ring_intr_disable(mac_intr_handle_t);
861 
862 /*
863  * Function prototypes in igb_rx.c
864  */
865 mblk_t *igb_rx(igb_rx_ring_t *, int);
866 void igb_rx_recycle(caddr_t arg);
867 
868 /*
869  * Function prototypes in igb_tx.c
870  */
871 void igb_free_tcb(tx_control_block_t *);
872 void igb_put_free_list(igb_tx_ring_t *, link_list_t *);
873 uint32_t igb_tx_recycle_legacy(igb_tx_ring_t *);
874 uint32_t igb_tx_recycle_head_wb(igb_tx_ring_t *);
875 
876 /*
877  * Function prototypes in igb_log.c
878  */
879 void igb_notice(void *, const char *, ...);
880 void igb_log(void *, const char *, ...);
881 void igb_error(void *, const char *, ...);
882 
883 /*
884  * Function prototypes in igb_ndd.c
885  */
886 int igb_nd_init(igb_t *);
887 void igb_nd_cleanup(igb_t *);
888 enum ioc_reply igb_nd_ioctl(igb_t *, queue_t *, mblk_t *, struct iocblk *);
889 
890 /*
891  * Function prototypes in igb_stat.c
892  */
893 int igb_init_stats(igb_t *);
894 
895 mblk_t *igb_rx_ring_poll(void *, int);
896 mblk_t *igb_tx_ring_send(void *, mblk_t *);
897 
898 #ifdef __cplusplus
899 }
900 #endif
901 
902 #endif /* _IGB_SW_H */
903