xref: /titanic_44/usr/src/uts/common/io/ixgbe/ixgbe_sw.h (revision 9595f109a086b122e563aa9b0a4ec2304944f3de)
1 /*
2  * CDDL HEADER START
3  *
4  * Copyright(c) 2007-2008 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 2008 Sun Microsystems, Inc.  All rights reserved.
26  * Use is subject to license terms of the CDDL.
27  */
28 
29 #ifndef	_IXGBE_SW_H
30 #define	_IXGBE_SW_H
31 
32 #pragma ident	"%Z%%M%	%I%	%E% SMI"
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.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/ip.h>
66 #include <inet/mi.h>
67 #include <inet/nd.h>
68 #include <sys/bitmap.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 "ixgbe_api.h"
74 
75 #define	MODULE_NAME			"ixgbe"	/* module name */
76 
77 #define	IXGBE_FAILURE			DDI_FAILURE
78 
79 #define	IXGBE_UNKNOWN			0x00
80 #define	IXGBE_INITIALIZED		0x01
81 #define	IXGBE_STARTED			0x02
82 #define	IXGBE_SUSPENDED			0x04
83 
84 #define	MAX_NUM_UNICAST_ADDRESSES 	0x10
85 #define	MAX_NUM_MULTICAST_ADDRESSES 	0x1000
86 #define	IXGBE_INTR_NONE			0
87 #define	IXGBE_INTR_MSIX			1
88 #define	IXGBE_INTR_MSI			2
89 #define	IXGBE_INTR_LEGACY		3
90 
91 #define	MAX_COOKIE			16
92 #define	MIN_NUM_TX_DESC			2
93 
94 /*
95  * Maximum values for user configurable parameters
96  */
97 
98 /*
99  * MAX_xx_QUEUE_NUM values need to be the maximum of all supported
100  * silicon types.
101  */
102 #define	MAX_TX_QUEUE_NUM		32
103 #define	MAX_RX_QUEUE_NUM		64
104 
105 #define	MAX_TX_RING_SIZE		4096
106 #define	MAX_RX_RING_SIZE		4096
107 
108 #define	MAX_MTU				16366
109 #define	MAX_RX_LIMIT_PER_INTR		4096
110 #define	MAX_INTR_THROTTLING		65535
111 
112 #define	MAX_RX_COPY_THRESHOLD		9216
113 #define	MAX_TX_COPY_THRESHOLD		9216
114 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
115 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
116 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
117 
118 /*
119  * Minimum values for user configurable parameters
120  */
121 #define	MIN_TX_QUEUE_NUM		1
122 #define	MIN_RX_QUEUE_NUM		1
123 #define	MIN_TX_RING_SIZE		64
124 #define	MIN_RX_RING_SIZE		64
125 
126 #define	MIN_MTU				ETHERMIN
127 #define	MIN_RX_LIMIT_PER_INTR		16
128 #define	MIN_INTR_THROTTLING		0
129 #define	MIN_TX_COPY_THRESHOLD		0
130 #define	MIN_RX_COPY_THRESHOLD		0
131 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
132 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
133 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
134 
135 /*
136  * Default values for user configurable parameters
137  */
138 #define	DEFAULT_TX_QUEUE_NUM		1
139 #define	DEFAULT_RX_QUEUE_NUM		1
140 #define	DEFAULT_TX_RING_SIZE		512
141 #define	DEFAULT_RX_RING_SIZE		512
142 
143 #define	DEFAULT_MTU			ETHERMTU
144 #define	DEFAULT_RX_LIMIT_PER_INTR	256
145 #define	DEFAULT_INTR_THROTTLING		200	/* In unit of 256 nsec */
146 #define	DEFAULT_RX_COPY_THRESHOLD	128
147 #define	DEFAULT_TX_COPY_THRESHOLD	512
148 #define	DEFAULT_TX_RECYCLE_THRESHOLD	MAX_COOKIE
149 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
150 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
151 #define	DEFAULT_FCRTH			0x20000
152 #define	DEFAULT_FCRTL			0x10000
153 #define	DEFAULT_FCPAUSE			0xFFFF
154 
155 #define	TX_DRAIN_TIME			200
156 #define	RX_DRAIN_TIME			200
157 
158 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
159 #define	MAX_LINK_DOWN_TIMEOUT		8	/* 8 seconds */
160 
161 /*
162  * limits on msi-x vectors for 82598
163  */
164 #define	IXGBE_MAX_INTR_VECTOR  18
165 #define	IXGBE_MAX_OTHER_VECTOR 2
166 #define	IXGBE_MAX_RING_VECTOR (IXGBE_MAX_INTR_VECTOR - IXGBE_MAX_OTHER_VECTOR)
167 
168 /*
169  * Extra register bit masks for 82598
170  */
171 #define	IXGBE_PCS1GANA_FDC	0x20
172 #define	IXGBE_PCS1GANLP_LPFD	0x20
173 #define	IXGBE_PCS1GANLP_LPHD	0x40
174 
175 
176 /*
177  * Defined for IP header alignment.
178  */
179 #define	IPHDR_ALIGN_ROOM		2
180 
181 /*
182  * Bit flags for attach_progress
183  */
184 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
185 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
186 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
187 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
188 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
189 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
190 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
191 #define	ATTACH_PROGRESS_INIT		0x0080	/* Device initialized */
192 #define	ATTACH_PROGRESS_INIT_RINGS	0x0100	/* Rings initialized */
193 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
194 #define	ATTACH_PROGRESS_NDD		0x0400	/* NDD initialized */
195 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
196 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
197 #define	ATTACH_PROGRESS_FM_INIT		0x2000	/* FMA initialized */
198 
199 #define	PROP_DEFAULT_MTU		"default_mtu"
200 #define	PROP_FLOW_CONTROL		"flow_control"
201 #define	PROP_TX_QUEUE_NUM		"tx_queue_number"
202 #define	PROP_TX_RING_SIZE		"tx_ring_size"
203 #define	PROP_RX_QUEUE_NUM		"rx_queue_number"
204 #define	PROP_RX_RING_SIZE		"rx_ring_size"
205 
206 #define	PROP_INTR_FORCE			"intr_force"
207 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
208 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
209 #define	PROP_LSO_ENABLE			"lso_enable"
210 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
211 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
212 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
213 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
214 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
215 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
216 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
217 #define	PROP_INTR_THROTTLING		"intr_throttling"
218 #define	PROP_FM_CAPABLE			"fm_capable"
219 
220 #define	IXGBE_LB_NONE			0
221 #define	IXGBE_LB_EXTERNAL		1
222 #define	IXGBE_LB_INTERNAL_MAC		2
223 #define	IXGBE_LB_INTERNAL_PHY		3
224 #define	IXGBE_LB_INTERNAL_SERDES	4
225 
226 /*
227  * Shorthand for the NDD parameters
228  */
229 #define	param_autoneg_cap	nd_params[PARAM_AUTONEG_CAP].val
230 #define	param_pause_cap		nd_params[PARAM_PAUSE_CAP].val
231 #define	param_asym_pause_cap	nd_params[PARAM_ASYM_PAUSE_CAP].val
232 #define	param_10000fdx_cap	nd_params[PARAM_10000FDX_CAP].val
233 #define	param_1000fdx_cap	nd_params[PARAM_1000FDX_CAP].val
234 #define	param_100fdx_cap	nd_params[PARAM_1000FDX_CAP].val
235 #define	param_rem_fault		nd_params[PARAM_REM_FAULT].val
236 
237 #define	param_adv_autoneg_cap	nd_params[PARAM_ADV_AUTONEG_CAP].val
238 #define	param_adv_pause_cap	nd_params[PARAM_ADV_PAUSE_CAP].val
239 #define	param_adv_asym_pause_cap nd_params[PARAM_ADV_ASYM_PAUSE_CAP].val
240 #define	param_adv_10000fdx_cap	nd_params[PARAM_ADV_10000FDX_CAP].val
241 #define	param_adv_1000fdx_cap	nd_params[PARAM_ADV_1000FDX_CAP].val
242 #define	param_adv_100fdx_cap	nd_params[PARAM_ADV_1000FDX_CAP].val
243 #define	param_adv_rem_fault	nd_params[PARAM_ADV_REM_FAULT].val
244 
245 #define	param_lp_autoneg_cap	nd_params[PARAM_LP_AUTONEG_CAP].val
246 #define	param_lp_pause_cap	nd_params[PARAM_LP_PAUSE_CAP].val
247 #define	param_lp_asym_pause_cap	nd_params[PARAM_LP_ASYM_PAUSE_CAP].val
248 #define	param_lp_10000fdx_cap	nd_params[PARAM_LP_10000FDX_CAP].val
249 #define	param_lp_1000fdx_cap	nd_params[PARAM_LP_1000FDX_CAP].val
250 #define	param_lp_100fdx_cap	nd_params[PARAM_LP_1000FDX_CAP].val
251 #define	param_lp_rem_fault	nd_params[PARAM_LP_REM_FAULT].val
252 
253 enum ioc_reply {
254 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
255 	IOC_DONE, 	/* OK, reply sent */
256 	IOC_ACK,	/* OK, just send ACK */
257 	IOC_REPLY	/* OK, just send reply */
258 };
259 
260 #define	MBLK_LEN(mp)		((uintptr_t)(mp)->b_wptr - \
261 				(uintptr_t)(mp)->b_rptr)
262 
263 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
264 				    0, 0, (flag)))
265 
266 /*
267  * Defined for ring index operations
268  * ASSERT(index < limit)
269  * ASSERT(step < limit)
270  * ASSERT(index1 < limit)
271  * ASSERT(index2 < limit)
272  */
273 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
274 	(index) + (step) : (index) + (step) - (limit))
275 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
276 	(index) - (step) : (index) + (limit) - (step))
277 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
278 	(index2) - (index1) : (index2) + (limit) - (index1))
279 
280 #define	LINK_LIST_INIT(_LH)	\
281 	(_LH)->head = (_LH)->tail = NULL
282 
283 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
284 
285 #define	LIST_POP_HEAD(_LH)	\
286 	(single_link_t *)(_LH)->head; \
287 	{ \
288 		if ((_LH)->head != NULL) { \
289 			(_LH)->head = (_LH)->head->link; \
290 			if ((_LH)->head == NULL) \
291 				(_LH)->tail = NULL; \
292 		} \
293 	}
294 
295 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
296 
297 #define	LIST_PUSH_TAIL(_LH, _E)	\
298 	if ((_LH)->tail != NULL) { \
299 		(_LH)->tail->link = (single_link_t *)(_E); \
300 		(_LH)->tail = (single_link_t *)(_E); \
301 	} else { \
302 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
303 	} \
304 	(_E)->link = NULL;
305 
306 #define	LIST_GET_NEXT(_LH, _E)		\
307 	(((_LH)->tail == (single_link_t *)(_E)) ? \
308 	NULL : ((single_link_t *)(_E))->link)
309 
310 
311 typedef struct single_link {
312 	struct single_link	*link;
313 } single_link_t;
314 
315 typedef struct link_list {
316 	single_link_t		*head;
317 	single_link_t		*tail;
318 } link_list_t;
319 
320 /*
321  * Property lookups
322  */
323 #define	IXGBE_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
324 				    DDI_PROP_DONTPASS, (n))
325 #define	IXGBE_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
326 				    DDI_PROP_DONTPASS, (n), -1)
327 
328 
329 /*
330  * Named Data (ND) Parameter Management Structure
331  */
332 typedef struct {
333 	struct ixgbe *private;
334 	uint32_t info;
335 	uint32_t min;
336 	uint32_t max;
337 	uint32_t val;
338 	char *name;
339 } nd_param_t;
340 
341 /*
342  * NDD parameter indexes, divided into:
343  *
344  *	read-only parameters describing the hardware's capabilities
345  *	read-write parameters controlling the advertised capabilities
346  *	read-only parameters describing the partner's capabilities
347  *	read-write parameters controlling the force speed and duplex
348  *	read-only parameters describing the link state
349  *	read-only parameters describing the driver properties
350  *	read-write parameters controlling the driver properties
351  */
352 enum {
353 	PARAM_AUTONEG_CAP,
354 	PARAM_PAUSE_CAP,
355 	PARAM_ASYM_PAUSE_CAP,
356 	PARAM_10000FDX_CAP,
357 	PARAM_1000FDX_CAP,
358 	PARAM_100FDX_CAP,
359 	PARAM_REM_FAULT,
360 
361 	PARAM_ADV_AUTONEG_CAP,
362 	PARAM_ADV_PAUSE_CAP,
363 	PARAM_ADV_ASYM_PAUSE_CAP,
364 	PARAM_ADV_10000FDX_CAP,
365 	PARAM_ADV_1000FDX_CAP,
366 	PARAM_ADV_100FDX_CAP,
367 	PARAM_ADV_REM_FAULT,
368 
369 	PARAM_LP_AUTONEG_CAP,
370 	PARAM_LP_PAUSE_CAP,
371 	PARAM_LP_ASYM_PAUSE_CAP,
372 	PARAM_LP_10000FDX_CAP,
373 	PARAM_LP_1000FDX_CAP,
374 	PARAM_LP_100FDX_CAP,
375 	PARAM_LP_REM_FAULT,
376 
377 	PARAM_LINK_STATUS,
378 	PARAM_LINK_SPEED,
379 	PARAM_LINK_DUPLEX,
380 
381 	PARAM_COUNT
382 };
383 
384 typedef union ixgbe_ether_addr {
385 	struct {
386 		uint32_t	high;
387 		uint32_t	low;
388 	} reg;
389 	struct {
390 		uint8_t		set;
391 		uint8_t		redundant;
392 		uint8_t		addr[ETHERADDRL];
393 	} mac;
394 } ixgbe_ether_addr_t;
395 
396 typedef enum {
397 	USE_NONE,
398 	USE_COPY,
399 	USE_DMA
400 } tx_type_t;
401 
402 typedef enum {
403 	RCB_FREE,
404 	RCB_SENDUP
405 } rcb_state_t;
406 
407 typedef struct hcksum_context {
408 	uint32_t		hcksum_flags;
409 	uint32_t		ip_hdr_len;
410 	uint32_t		mac_hdr_len;
411 	uint32_t		l4_proto;
412 } hcksum_context_t;
413 
414 /*
415  * Hold address/length of each DMA segment
416  */
417 typedef struct sw_desc {
418 	uint64_t		address;
419 	size_t			length;
420 } sw_desc_t;
421 
422 /*
423  * Handles and addresses of DMA buffer
424  */
425 typedef struct dma_buffer {
426 	caddr_t			address;	/* Virtual address */
427 	uint64_t		dma_address;	/* DMA (Hardware) address */
428 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
429 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
430 	size_t			size;		/* Buffer size */
431 	size_t			len;		/* Data length in the buffer */
432 } dma_buffer_t;
433 
434 /*
435  * Tx Control Block
436  */
437 typedef struct tx_control_block {
438 	single_link_t		link;
439 	uint32_t		frag_num;
440 	uint32_t		desc_num;
441 	mblk_t			*mp;
442 	tx_type_t		tx_type;
443 	ddi_dma_handle_t	tx_dma_handle;
444 	dma_buffer_t		tx_buf;
445 	sw_desc_t		desc[MAX_COOKIE];
446 } tx_control_block_t;
447 
448 /*
449  * RX Control Block
450  */
451 typedef struct rx_control_block {
452 	mblk_t			*mp;
453 	rcb_state_t		state;
454 	dma_buffer_t		rx_buf;
455 	frtn_t			free_rtn;
456 	struct ixgbe_rx_ring	*rx_ring;
457 } rx_control_block_t;
458 
459 /*
460  * Software Data Structure for Tx Ring
461  */
462 typedef struct ixgbe_tx_ring {
463 	uint32_t		index;	/* Ring index */
464 	uint32_t		intr_vector;	/* Interrupt vector index */
465 	uint32_t		vect_bit;	/* vector's bit in register */
466 
467 	/*
468 	 * Mutexes
469 	 */
470 	kmutex_t		tx_lock;
471 	kmutex_t		recycle_lock;
472 	kmutex_t		tcb_head_lock;
473 	kmutex_t		tcb_tail_lock;
474 
475 	/*
476 	 * Tx descriptor ring definitions
477 	 */
478 	dma_buffer_t		tbd_area;
479 	union ixgbe_adv_tx_desc	*tbd_ring;
480 	uint32_t		tbd_head; /* Index of next tbd to recycle */
481 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
482 	uint32_t		tbd_free; /* Number of free tbd */
483 
484 	/*
485 	 * Tx control block list definitions
486 	 */
487 	tx_control_block_t	*tcb_area;
488 	tx_control_block_t	**work_list;
489 	tx_control_block_t	**free_list;
490 	uint32_t		tcb_head; /* Head index of free list */
491 	uint32_t		tcb_tail; /* Tail index of free list */
492 	uint32_t		tcb_free; /* Number of free tcb in free list */
493 
494 	uint32_t		*tbd_head_wb; /* Head write-back */
495 	uint32_t		(*tx_recycle)(struct ixgbe_tx_ring *);
496 
497 	/*
498 	 * TCP/UDP checksum offload
499 	 */
500 	hcksum_context_t	hcksum_context;
501 
502 	/*
503 	 * Tx ring settings and status
504 	 */
505 	uint32_t		ring_size; /* Tx descriptor ring size */
506 	uint32_t		free_list_size;	/* Tx free list size */
507 	uint32_t		copy_thresh;
508 	uint32_t		recycle_thresh;
509 	uint32_t		overload_thresh;
510 	uint32_t		resched_thresh;
511 
512 	boolean_t		reschedule;
513 	uint32_t		recycle_fail;
514 	uint32_t		stall_watchdog;
515 
516 #ifdef IXGBE_DEBUG
517 	/*
518 	 * Debug statistics
519 	 */
520 	uint32_t		stat_overload;
521 	uint32_t		stat_fail_no_tbd;
522 	uint32_t		stat_fail_no_tcb;
523 	uint32_t		stat_fail_dma_bind;
524 	uint32_t		stat_reschedule;
525 #endif
526 
527 	/*
528 	 * Pointer to the ixgbe struct
529 	 */
530 	struct ixgbe		*ixgbe;
531 
532 } ixgbe_tx_ring_t;
533 
534 /*
535  * Software Receive Ring
536  */
537 typedef struct ixgbe_rx_ring {
538 	uint32_t		index;		/* Ring index */
539 	uint32_t		intr_vector;	/* Interrupt vector index */
540 	uint32_t		vect_bit;	/* vector's bit in register */
541 
542 	/*
543 	 * Mutexes
544 	 */
545 	kmutex_t		rx_lock;	/* Rx access lock */
546 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
547 
548 	/*
549 	 * Rx descriptor ring definitions
550 	 */
551 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
552 	union ixgbe_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
553 	uint32_t		rbd_next;	/* Index of next rx desc */
554 
555 	/*
556 	 * Rx control block list definitions
557 	 */
558 	rx_control_block_t	*rcb_area;
559 	rx_control_block_t	**work_list;	/* Work list of rcbs */
560 	rx_control_block_t	**free_list;	/* Free list of rcbs */
561 	uint32_t		rcb_head;	/* Index of next free rcb */
562 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
563 	uint32_t		rcb_free;	/* Number of free rcbs */
564 
565 	/*
566 	 * Rx ring settings and status
567 	 */
568 	uint32_t		ring_size;	/* Rx descriptor ring size */
569 	uint32_t		free_list_size;	/* Rx free list size */
570 	uint32_t		limit_per_intr;	/* Max packets per interrupt */
571 	uint32_t		copy_thresh;
572 
573 #ifdef IXGBE_DEBUG
574 	/*
575 	 * Debug statistics
576 	 */
577 	uint32_t		stat_frame_error;
578 	uint32_t		stat_cksum_error;
579 	uint32_t		stat_exceed_pkt;
580 #endif
581 
582 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
583 
584 } ixgbe_rx_ring_t;
585 
586 /*
587  * structure to map ring cleanup to msi-x vector
588  */
589 typedef struct ixgbe_ring_vector {
590 	struct ixgbe *ixgbe;	/* point to my adapter */
591 	ulong_t rx_map[BT_BITOUL(MAX_RX_QUEUE_NUM)];	/* bitmap of rx rings */
592 	int	rxr_cnt;	/* count rx rings */
593 	ulong_t tx_map[BT_BITOUL(MAX_TX_QUEUE_NUM)];	/* bitmap of tx rings */
594 	int	txr_cnt;	/* count tx rings */
595 } ixgbe_ring_vector_t;
596 
597 /*
598  * Software adapter state
599  */
600 typedef struct ixgbe {
601 	int 			instance;
602 	mac_handle_t		mac_hdl;
603 	dev_info_t		*dip;
604 	struct ixgbe_hw		hw;
605 	struct ixgbe_osdep	osdep;
606 
607 	uint32_t		ixgbe_state;
608 	link_state_t		link_state;
609 	uint32_t		link_speed;
610 	uint32_t		link_duplex;
611 	uint32_t		link_down_timeout;
612 
613 	uint32_t		reset_count;
614 	uint32_t		attach_progress;
615 	uint32_t		loopback_mode;
616 	uint32_t		default_mtu;
617 	uint32_t		max_frame_size;
618 
619 	/*
620 	 * Each msi-x vector: map vector to ring cleanup
621 	 */
622 	ixgbe_ring_vector_t	vect_map[IXGBE_MAX_RING_VECTOR];
623 
624 	/*
625 	 * Receive Rings
626 	 */
627 	ixgbe_rx_ring_t		*rx_rings;	/* Array of rx rings */
628 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
629 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
630 	uint32_t		rx_buf_size;	/* Rx buffer size */
631 
632 	/*
633 	 * Transmit Rings
634 	 */
635 	ixgbe_tx_ring_t		*tx_rings;	/* Array of tx rings */
636 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
637 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
638 	uint32_t		tx_buf_size;	/* Tx buffer size */
639 
640 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
641 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
642 	boolean_t 		lso_enable; 	/* Large Segment Offload */
643 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
644 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
645 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
646 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
647 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
648 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
649 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
650 	uint32_t		intr_throttling[IXGBE_MAX_RING_VECTOR];
651 	uint32_t		intr_force;
652 	int			fm_capabilities; /* FMA capabilities */
653 
654 	int			intr_type;
655 	int			intr_cnt;
656 	int			intr_cap;
657 	size_t			intr_size;
658 	uint_t			intr_pri;
659 	ddi_intr_handle_t	*htable;
660 	uint32_t		eims_mask;
661 
662 	kmutex_t		gen_lock; /* General lock for device access */
663 	kmutex_t		watchdog_lock;
664 
665 	boolean_t		watchdog_enable;
666 	boolean_t		watchdog_start;
667 	timeout_id_t		watchdog_tid;
668 
669 	boolean_t		unicst_init;
670 	uint32_t		unicst_avail;
671 	uint32_t		unicst_total;
672 	ixgbe_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
673 	uint32_t		mcast_count;
674 	struct ether_addr	mcast_table[MAX_NUM_MULTICAST_ADDRESSES];
675 
676 	/*
677 	 * Kstat definitions
678 	 */
679 	kstat_t			*ixgbe_ks;
680 
681 	/*
682 	 * NDD definitions
683 	 */
684 	caddr_t			nd_data;
685 	nd_param_t		nd_params[PARAM_COUNT];
686 
687 } ixgbe_t;
688 
689 typedef struct ixgbe_stat {
690 
691 	kstat_named_t link_speed;	/* Link Speed */
692 #ifdef IXGBE_DEBUG
693 	kstat_named_t reset_count;	/* Reset Count */
694 
695 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
696 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
697 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
698 
699 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
700 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
701 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
702 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
703 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
704 
705 	kstat_named_t gprc;	/* Good Packets Received Count */
706 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
707 	kstat_named_t gor;	/* Good Octets Received Count */
708 	kstat_named_t got;	/* Good Octets Xmitd Count */
709 	kstat_named_t prc64;	/* Packets Received - 64b */
710 	kstat_named_t prc127;	/* Packets Received - 65-127b */
711 	kstat_named_t prc255;	/* Packets Received - 127-255b */
712 	kstat_named_t prc511;	/* Packets Received - 256-511b */
713 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
714 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
715 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
716 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
717 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
718 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
719 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
720 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
721 #endif
722 	kstat_named_t crcerrs;	/* CRC Error Count */
723 	kstat_named_t illerrc;	/* Illegal Byte Error Count */
724 	kstat_named_t errbc;	/* Error Byte Count */
725 	kstat_named_t mspdc;	/* MAC Short Packet Discard Count */
726 	kstat_named_t mpc;	/* Missed Packets Count */
727 	kstat_named_t mlfc;	/* MAC Local Fault Count */
728 	kstat_named_t mrfc;	/* MAC Remote Fault Count */
729 	kstat_named_t rlec;	/* Receive Length Error Count */
730 	kstat_named_t lxontxc;	/* Link XON Transmitted Count */
731 	kstat_named_t lxonrxc;	/* Link XON Received Count */
732 	kstat_named_t lxofftxc;	/* Link XOFF Transmitted Count */
733 	kstat_named_t lxoffrxc;	/* Link XOFF Received Count */
734 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
735 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
736 	kstat_named_t rnbc;	/* Receive No Buffers Count */
737 	kstat_named_t ruc;	/* Receive Undersize Count */
738 	kstat_named_t rfc;	/* Receive Frag Count */
739 	kstat_named_t roc;	/* Receive Oversize Count */
740 	kstat_named_t rjc;	/* Receive Jabber Count */
741 	kstat_named_t tor;	/* Total Octets Recvd Count */
742 	kstat_named_t tpr;	/* Total Packets Received */
743 	kstat_named_t tpt;	/* Total Packets Xmitted */
744 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
745 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
746 } ixgbe_stat_t;
747 
748 /*
749  * Function prototypes in ixgbe_buf.c
750  */
751 int ixgbe_alloc_dma(ixgbe_t *);
752 void ixgbe_free_dma(ixgbe_t *);
753 void ixgbe_set_fma_flags(int, int);
754 
755 /*
756  * Function prototypes in ixgbe_main.c
757  */
758 int ixgbe_start(ixgbe_t *);
759 void ixgbe_stop(ixgbe_t *);
760 int ixgbe_driver_setup_link(ixgbe_t *, boolean_t);
761 int ixgbe_unicst_set(ixgbe_t *, const uint8_t *, mac_addr_slot_t);
762 int ixgbe_multicst_add(ixgbe_t *, const uint8_t *);
763 int ixgbe_multicst_remove(ixgbe_t *, const uint8_t *);
764 enum ioc_reply ixgbe_loopback_ioctl(ixgbe_t *, struct iocblk *, mblk_t *);
765 
766 void ixgbe_enable_watchdog_timer(ixgbe_t *);
767 void ixgbe_disable_watchdog_timer(ixgbe_t *);
768 int ixgbe_atomic_reserve(uint32_t *, uint32_t);
769 
770 int ixgbe_check_acc_handle(ddi_acc_handle_t handle);
771 int ixgbe_check_dma_handle(ddi_dma_handle_t handle);
772 void ixgbe_fm_ereport(ixgbe_t *, char *);
773 
774 /*
775  * Function prototypes in ixgbe_gld.c
776  */
777 int ixgbe_m_start(void *);
778 void ixgbe_m_stop(void *);
779 int ixgbe_m_promisc(void *, boolean_t);
780 int ixgbe_m_multicst(void *, boolean_t, const uint8_t *);
781 int ixgbe_m_unicst(void *, const uint8_t *);
782 int ixgbe_m_stat(void *, uint_t, uint64_t *);
783 void ixgbe_m_resources(void *);
784 void ixgbe_m_ioctl(void *, queue_t *, mblk_t *);
785 int ixgbe_m_unicst_add(void *, mac_multi_addr_t *);
786 int ixgbe_m_unicst_remove(void *, mac_addr_slot_t);
787 int ixgbe_m_unicst_modify(void *, mac_multi_addr_t *);
788 int ixgbe_m_unicst_get(void *, mac_multi_addr_t *);
789 boolean_t ixgbe_m_getcapab(void *, mac_capab_t, void *);
790 
791 /*
792  * Function prototypes in ixgbe_rx.c
793  */
794 mblk_t *ixgbe_rx(ixgbe_rx_ring_t *);
795 void ixgbe_rx_recycle(caddr_t arg);
796 
797 /*
798  * Function prototypes in ixgbe_tx.c
799  */
800 mblk_t *ixgbe_m_tx(void *, mblk_t *);
801 void ixgbe_free_tcb(tx_control_block_t *);
802 void ixgbe_put_free_list(ixgbe_tx_ring_t *, link_list_t *);
803 uint32_t ixgbe_tx_recycle_legacy(ixgbe_tx_ring_t *);
804 uint32_t ixgbe_tx_recycle_head_wb(ixgbe_tx_ring_t *);
805 
806 /*
807  * Function prototypes in ixgbe_log.c
808  */
809 void ixgbe_notice(void *, const char *, ...);
810 void ixgbe_log(void *, const char *, ...);
811 void ixgbe_error(void *, const char *, ...);
812 
813 /*
814  * Function prototypes in ixgbe_ndd.c
815  */
816 int ixgbe_nd_init(ixgbe_t *);
817 void ixgbe_nd_cleanup(ixgbe_t *);
818 enum ioc_reply ixgbe_nd_ioctl(ixgbe_t *, queue_t *, mblk_t *, struct iocblk *);
819 
820 /*
821  * Function prototypes in ixgbe_stat.c
822  */
823 int ixgbe_init_stats(ixgbe_t *);
824 
825 
826 #ifdef __cplusplus
827 }
828 #endif
829 
830 #endif /* _IXGBE_SW_H */
831