xref: /illumos-gate/usr/src/uts/common/io/ixgbe/ixgbe_sw.h (revision ffd8e883)
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	_IXGBE_SW_H
29 #define	_IXGBE_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/bitmap.h>
67 #include <sys/ddifm.h>
68 #include <sys/fm/protocol.h>
69 #include <sys/fm/util.h>
70 #include <sys/disp.h>
71 #include <sys/fm/io/ddi.h>
72 #include "ixgbe_api.h"
73 
74 #define	MODULE_NAME			"ixgbe"	/* module name */
75 
76 #define	IXGBE_FAILURE			DDI_FAILURE
77 
78 #define	IXGBE_UNKNOWN			0x00
79 #define	IXGBE_INITIALIZED		0x01
80 #define	IXGBE_STARTED			0x02
81 #define	IXGBE_SUSPENDED			0x04
82 #define	IXGBE_STALL			0x08
83 #define	IXGBE_ERROR			0x80
84 
85 #define	MAX_NUM_UNICAST_ADDRESSES 	0x10
86 #define	MAX_NUM_MULTICAST_ADDRESSES 	0x1000
87 #define	IXGBE_INTR_NONE			0
88 #define	IXGBE_INTR_MSIX			1
89 #define	IXGBE_INTR_MSI			2
90 #define	IXGBE_INTR_LEGACY		3
91 
92 #define	IXGBE_POLL_NULL			-1
93 
94 #define	MAX_COOKIE			18
95 #define	MIN_NUM_TX_DESC			2
96 
97 #define	IXGBE_TX_DESC_LIMIT		32	/* tx desc limitation	*/
98 
99 #define	IXGBE_ADAPTER_REGSET		1	/* map adapter registers */
100 
101 #define	IXGBE_RX_STOPPED		0x1
102 
103 #define	IXGBE_PKG_BUF_16k		16384
104 
105 /*
106  * MAX_xx_QUEUE_NUM and MAX_INTR_VECTOR values need to be the maximum of all
107  * supported silicon types.
108  */
109 #define	MAX_TX_QUEUE_NUM		128
110 #define	MAX_RX_QUEUE_NUM		128
111 #define	MAX_INTR_VECTOR			64
112 
113 /*
114  * Maximum values for user configurable parameters
115  */
116 #define	MAX_RX_GROUP_NUM		1
117 #define	MAX_TX_RING_SIZE		4096
118 #define	MAX_RX_RING_SIZE		4096
119 
120 #define	MAX_RX_LIMIT_PER_INTR		4096
121 
122 #define	MAX_RX_COPY_THRESHOLD		9216
123 #define	MAX_TX_COPY_THRESHOLD		9216
124 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
125 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
126 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
127 
128 /*
129  * Minimum values for user configurable parameters
130  */
131 #define	MIN_RX_GROUP_NUM		1
132 #define	MIN_TX_RING_SIZE		64
133 #define	MIN_RX_RING_SIZE		64
134 
135 #define	MIN_MTU				ETHERMIN
136 #define	MIN_RX_LIMIT_PER_INTR		16
137 #define	MIN_TX_COPY_THRESHOLD		0
138 #define	MIN_RX_COPY_THRESHOLD		0
139 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
140 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
141 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
142 
143 /*
144  * Default values for user configurable parameters
145  */
146 #define	DEFAULT_RX_GROUP_NUM		1
147 #define	DEFAULT_TX_RING_SIZE		1024
148 #define	DEFAULT_RX_RING_SIZE		1024
149 
150 #define	DEFAULT_MTU			ETHERMTU
151 #define	DEFAULT_RX_LIMIT_PER_INTR	256
152 #define	DEFAULT_RX_COPY_THRESHOLD	128
153 #define	DEFAULT_TX_COPY_THRESHOLD	512
154 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
155 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
156 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
157 #define	DEFAULT_FCRTH			0x20000
158 #define	DEFAULT_FCRTL			0x10000
159 #define	DEFAULT_FCPAUSE			0xFFFF
160 
161 #define	DEFAULT_TX_HCKSUM_ENABLE	B_TRUE
162 #define	DEFAULT_RX_HCKSUM_ENABLE	B_TRUE
163 #define	DEFAULT_LSO_ENABLE		B_TRUE
164 #define	DEFAULT_LRO_ENABLE		B_FALSE
165 #define	DEFAULT_MR_ENABLE		B_TRUE
166 #define	DEFAULT_TX_HEAD_WB_ENABLE	B_TRUE
167 
168 #define	IXGBE_LSO_MAXLEN		65535
169 
170 #define	TX_DRAIN_TIME			200
171 #define	RX_DRAIN_TIME			200
172 
173 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
174 #define	MAX_LINK_DOWN_TIMEOUT		8	/* 8 seconds */
175 
176 #define	IXGBE_CYCLIC_PERIOD		(1000000000)	/* 1s */
177 
178 /*
179  * Extra register bit masks for 82598
180  */
181 #define	IXGBE_PCS1GANA_FDC	0x20
182 #define	IXGBE_PCS1GANLP_LPFD	0x20
183 #define	IXGBE_PCS1GANLP_LPHD	0x40
184 
185 /*
186  * Defined for IP header alignment.
187  */
188 #define	IPHDR_ALIGN_ROOM		2
189 
190 /*
191  * Bit flags for attach_progress
192  */
193 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
194 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
195 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
196 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
197 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
198 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
199 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
200 #define	ATTACH_PROGRESS_INIT		0x0080	/* Device initialized */
201 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
202 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
203 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
204 #define	ATTACH_PROGRESS_FM_INIT		0x2000	/* FMA initialized */
205 #define	ATTACH_PROGRESS_SFP_TASKQ	0x4000	/* SFP taskq created */
206 #define	ATTACH_PROGRESS_LINK_TIMER	0x8000	/* link check timer */
207 
208 #define	PROP_DEFAULT_MTU		"default_mtu"
209 #define	PROP_FLOW_CONTROL		"flow_control"
210 #define	PROP_TX_QUEUE_NUM		"tx_queue_number"
211 #define	PROP_TX_RING_SIZE		"tx_ring_size"
212 #define	PROP_RX_QUEUE_NUM		"rx_queue_number"
213 #define	PROP_RX_RING_SIZE		"rx_ring_size"
214 #define	PROP_RX_GROUP_NUM		"rx_group_number"
215 
216 #define	PROP_INTR_FORCE			"intr_force"
217 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
218 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
219 #define	PROP_LSO_ENABLE			"lso_enable"
220 #define	PROP_LRO_ENABLE			"lro_enable"
221 #define	PROP_MR_ENABLE			"mr_enable"
222 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
223 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
224 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
225 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
226 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
227 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
228 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
229 #define	PROP_INTR_THROTTLING		"intr_throttling"
230 #define	PROP_FM_CAPABLE			"fm_capable"
231 
232 #define	IXGBE_LB_NONE			0
233 #define	IXGBE_LB_EXTERNAL		1
234 #define	IXGBE_LB_INTERNAL_MAC		2
235 #define	IXGBE_LB_INTERNAL_PHY		3
236 #define	IXGBE_LB_INTERNAL_SERDES	4
237 
238 /*
239  * capability/feature flags
240  * Flags named _CAPABLE are set when the NIC hardware is capable of the feature.
241  * Separately, the flag named _ENABLED is set when the feature is enabled.
242  */
243 #define	IXGBE_FLAG_DCA_ENABLED		(u32)(1)
244 #define	IXGBE_FLAG_DCA_CAPABLE		(u32)(1 << 1)
245 #define	IXGBE_FLAG_DCB_ENABLED		(u32)(1 << 2)
246 #define	IXGBE_FLAG_DCB_CAPABLE		(u32)(1 << 4)
247 #define	IXGBE_FLAG_RSS_ENABLED		(u32)(1 << 4)
248 #define	IXGBE_FLAG_RSS_CAPABLE		(u32)(1 << 5)
249 #define	IXGBE_FLAG_VMDQ_CAPABLE		(u32)(1 << 6)
250 #define	IXGBE_FLAG_VMDQ_ENABLED		(u32)(1 << 7)
251 #define	IXGBE_FLAG_FAN_FAIL_CAPABLE	(u32)(1 << 8)
252 #define	IXGBE_FLAG_RSC_CAPABLE		(u32)(1 << 9)
253 
254 /* adapter-specific info for each supported device type */
255 typedef struct adapter_info {
256 	uint32_t	max_rx_que_num;	/* maximum number of rx queues */
257 	uint32_t	min_rx_que_num;	/* minimum number of rx queues */
258 	uint32_t	def_rx_que_num;	/* default number of rx queues */
259 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
260 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
261 	uint32_t	def_tx_que_num;	/* default number of tx queues */
262 	uint32_t	max_mtu;	/* maximum MTU size */
263 	/*
264 	 * Interrupt throttling is in unit of 256 nsec
265 	 */
266 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
267 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
268 	uint32_t	def_intr_throttle; /* default interrupt throttle */
269 
270 	uint32_t	max_msix_vect;	/* maximum total msix vectors */
271 	uint32_t	max_ring_vect;	/* maximum number of ring vectors */
272 	uint32_t	max_other_vect;	/* maximum number of other vectors */
273 	uint32_t	other_intr;	/* "other" interrupt types handled */
274 	uint32_t	flags;		/* capability flags */
275 } adapter_info_t;
276 
277 /* bits representing all interrupt types other than tx & rx */
278 #define	IXGBE_OTHER_INTR	0x3ff00000
279 #define	IXGBE_82599_OTHER_INTR	0x86100000
280 
281 enum ioc_reply {
282 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
283 	IOC_DONE, 	/* OK, reply sent */
284 	IOC_ACK,	/* OK, just send ACK */
285 	IOC_REPLY	/* OK, just send reply */
286 };
287 
288 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
289 				    0, 0, (flag)))
290 
291 /*
292  * Defined for ring index operations
293  * ASSERT(index < limit)
294  * ASSERT(step < limit)
295  * ASSERT(index1 < limit)
296  * ASSERT(index2 < limit)
297  */
298 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
299 	(index) + (step) : (index) + (step) - (limit))
300 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
301 	(index) - (step) : (index) + (limit) - (step))
302 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
303 	(index2) - (index1) : (index2) + (limit) - (index1))
304 
305 #define	LINK_LIST_INIT(_LH)	\
306 	(_LH)->head = (_LH)->tail = NULL
307 
308 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
309 
310 #define	LIST_POP_HEAD(_LH)	\
311 	(single_link_t *)(_LH)->head; \
312 	{ \
313 		if ((_LH)->head != NULL) { \
314 			(_LH)->head = (_LH)->head->link; \
315 			if ((_LH)->head == NULL) \
316 				(_LH)->tail = NULL; \
317 		} \
318 	}
319 
320 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
321 
322 #define	LIST_PUSH_TAIL(_LH, _E)	\
323 	if ((_LH)->tail != NULL) { \
324 		(_LH)->tail->link = (single_link_t *)(_E); \
325 		(_LH)->tail = (single_link_t *)(_E); \
326 	} else { \
327 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
328 	} \
329 	(_E)->link = NULL;
330 
331 #define	LIST_GET_NEXT(_LH, _E)		\
332 	(((_LH)->tail == (single_link_t *)(_E)) ? \
333 	NULL : ((single_link_t *)(_E))->link)
334 
335 
336 typedef struct single_link {
337 	struct single_link	*link;
338 } single_link_t;
339 
340 typedef struct link_list {
341 	single_link_t		*head;
342 	single_link_t		*tail;
343 } link_list_t;
344 
345 /*
346  * Property lookups
347  */
348 #define	IXGBE_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
349 				    DDI_PROP_DONTPASS, (n))
350 #define	IXGBE_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
351 				    DDI_PROP_DONTPASS, (n), -1)
352 
353 
354 typedef union ixgbe_ether_addr {
355 	struct {
356 		uint32_t	high;
357 		uint32_t	low;
358 	} reg;
359 	struct {
360 		uint8_t		set;
361 		uint8_t		redundant;
362 		uint8_t		addr[ETHERADDRL];
363 	} mac;
364 } ixgbe_ether_addr_t;
365 
366 typedef enum {
367 	USE_NONE,
368 	USE_COPY,
369 	USE_DMA
370 } tx_type_t;
371 
372 typedef struct ixgbe_tx_context {
373 	uint32_t		hcksum_flags;
374 	uint32_t		ip_hdr_len;
375 	uint32_t		mac_hdr_len;
376 	uint32_t		l4_proto;
377 	uint32_t		mss;
378 	uint32_t		l4_hdr_len;
379 	boolean_t		lso_flag;
380 } ixgbe_tx_context_t;
381 
382 /*
383  * Hold address/length of each DMA segment
384  */
385 typedef struct sw_desc {
386 	uint64_t		address;
387 	size_t			length;
388 } sw_desc_t;
389 
390 /*
391  * Handles and addresses of DMA buffer
392  */
393 typedef struct dma_buffer {
394 	caddr_t			address;	/* Virtual address */
395 	uint64_t		dma_address;	/* DMA (Hardware) address */
396 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
397 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
398 	size_t			size;		/* Buffer size */
399 	size_t			len;		/* Data length in the buffer */
400 } dma_buffer_t;
401 
402 /*
403  * Tx Control Block
404  */
405 typedef struct tx_control_block {
406 	single_link_t		link;
407 	uint32_t		last_index; /* last descriptor of the pkt */
408 	uint32_t		frag_num;
409 	uint32_t		desc_num;
410 	mblk_t			*mp;
411 	tx_type_t		tx_type;
412 	ddi_dma_handle_t	tx_dma_handle;
413 	dma_buffer_t		tx_buf;
414 	sw_desc_t		desc[MAX_COOKIE];
415 } tx_control_block_t;
416 
417 /*
418  * RX Control Block
419  */
420 typedef struct rx_control_block {
421 	mblk_t			*mp;
422 	uint32_t		ref_cnt;
423 	dma_buffer_t		rx_buf;
424 	frtn_t			free_rtn;
425 	struct ixgbe_rx_data	*rx_data;
426 	int			lro_next;	/* Index of next rcb */
427 	int			lro_prev;	/* Index of previous rcb */
428 	boolean_t		lro_pkt;	/* Flag for LRO rcb */
429 } rx_control_block_t;
430 
431 /*
432  * Software Data Structure for Tx Ring
433  */
434 typedef struct ixgbe_tx_ring {
435 	uint32_t		index;	/* Ring index */
436 	uint32_t		intr_vector;	/* Interrupt vector index */
437 	uint32_t		vect_bit;	/* vector's bit in register */
438 
439 	/*
440 	 * Mutexes
441 	 */
442 	kmutex_t		tx_lock;
443 	kmutex_t		recycle_lock;
444 	kmutex_t		tcb_head_lock;
445 	kmutex_t		tcb_tail_lock;
446 
447 	/*
448 	 * Tx descriptor ring definitions
449 	 */
450 	dma_buffer_t		tbd_area;
451 	union ixgbe_adv_tx_desc	*tbd_ring;
452 	uint32_t		tbd_head; /* Index of next tbd to recycle */
453 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
454 	uint32_t		tbd_free; /* Number of free tbd */
455 
456 	/*
457 	 * Tx control block list definitions
458 	 */
459 	tx_control_block_t	*tcb_area;
460 	tx_control_block_t	**work_list;
461 	tx_control_block_t	**free_list;
462 	uint32_t		tcb_head; /* Head index of free list */
463 	uint32_t		tcb_tail; /* Tail index of free list */
464 	uint32_t		tcb_free; /* Number of free tcb in free list */
465 
466 	uint32_t		*tbd_head_wb; /* Head write-back */
467 	uint32_t		(*tx_recycle)(struct ixgbe_tx_ring *);
468 
469 	/*
470 	 * s/w context structure for TCP/UDP checksum offload
471 	 * and LSO.
472 	 */
473 	ixgbe_tx_context_t	tx_context;
474 
475 	/*
476 	 * Tx ring settings and status
477 	 */
478 	uint32_t		ring_size; /* Tx descriptor ring size */
479 	uint32_t		free_list_size;	/* Tx free list size */
480 
481 	boolean_t		reschedule;
482 	uint32_t		recycle_fail;
483 	uint32_t		stall_watchdog;
484 
485 #ifdef IXGBE_DEBUG
486 	/*
487 	 * Debug statistics
488 	 */
489 	uint32_t		stat_overload;
490 	uint32_t		stat_fail_no_tbd;
491 	uint32_t		stat_fail_no_tcb;
492 	uint32_t		stat_fail_dma_bind;
493 	uint32_t		stat_reschedule;
494 	uint32_t		stat_break_tbd_limit;
495 	uint32_t		stat_lso_header_fail;
496 #endif
497 
498 	mac_ring_handle_t	ring_handle;
499 
500 	/*
501 	 * Pointer to the ixgbe struct
502 	 */
503 	struct ixgbe		*ixgbe;
504 } ixgbe_tx_ring_t;
505 
506 /*
507  * Software Receive Ring
508  */
509 typedef struct ixgbe_rx_data {
510 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
511 
512 	/*
513 	 * Rx descriptor ring definitions
514 	 */
515 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
516 	union ixgbe_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
517 	uint32_t		rbd_next;	/* Index of next rx desc */
518 
519 	/*
520 	 * Rx control block list definitions
521 	 */
522 	rx_control_block_t	*rcb_area;
523 	rx_control_block_t	**work_list;	/* Work list of rcbs */
524 	rx_control_block_t	**free_list;	/* Free list of rcbs */
525 	uint32_t		rcb_head;	/* Index of next free rcb */
526 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
527 	uint32_t		rcb_free;	/* Number of free rcbs */
528 
529 	/*
530 	 * Rx sw ring settings and status
531 	 */
532 	uint32_t		ring_size;	/* Rx descriptor ring size */
533 	uint32_t		free_list_size;	/* Rx free list size */
534 
535 	uint32_t		rcb_pending;
536 	uint32_t		flag;
537 
538 	uint32_t		lro_num;	/* Number of rcbs of one LRO */
539 	uint32_t		lro_first;	/* Index of first LRO rcb */
540 
541 	struct ixgbe_rx_ring	*rx_ring;	/* Pointer to rx ring */
542 } ixgbe_rx_data_t;
543 
544 /*
545  * Software Data Structure for Rx Ring
546  */
547 typedef struct ixgbe_rx_ring {
548 	uint32_t		index;		/* Ring index */
549 	uint32_t		intr_vector;	/* Interrupt vector index */
550 	uint32_t		vect_bit;	/* vector's bit in register */
551 
552 	ixgbe_rx_data_t		*rx_data;	/* Rx software ring */
553 
554 	kmutex_t		rx_lock;	/* Rx access lock */
555 
556 #ifdef IXGBE_DEBUG
557 	/*
558 	 * Debug statistics
559 	 */
560 	uint32_t		stat_frame_error;
561 	uint32_t		stat_cksum_error;
562 	uint32_t		stat_exceed_pkt;
563 #endif
564 
565 	mac_ring_handle_t	ring_handle;
566 	uint64_t		ring_gen_num;
567 
568 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
569 } ixgbe_rx_ring_t;
570 /*
571  * Software Receive Ring Group
572  */
573 typedef struct ixgbe_rx_group {
574 	uint32_t		index;		/* Group index */
575 	mac_group_handle_t	group_handle;   /* call back group handle */
576 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
577 } ixgbe_rx_group_t;
578 
579 /*
580  * structure to map interrupt cleanup to msi-x vector
581  */
582 typedef struct ixgbe_intr_vector {
583 	struct ixgbe *ixgbe;	/* point to my adapter */
584 	ulong_t rx_map[BT_BITOUL(MAX_RX_QUEUE_NUM)];	/* bitmap of rx rings */
585 	int	rxr_cnt;	/* count rx rings */
586 	ulong_t tx_map[BT_BITOUL(MAX_TX_QUEUE_NUM)];	/* bitmap of tx rings */
587 	int	txr_cnt;	/* count tx rings */
588 	ulong_t other_map[BT_BITOUL(2)];		/* bitmap of other */
589 	int	other_cnt;	/* count other interrupt */
590 } ixgbe_intr_vector_t;
591 
592 /*
593  * Software adapter state
594  */
595 typedef struct ixgbe {
596 	int 			instance;
597 	mac_handle_t		mac_hdl;
598 	dev_info_t		*dip;
599 	struct ixgbe_hw		hw;
600 	struct ixgbe_osdep	osdep;
601 
602 	adapter_info_t		*capab;	/* adapter hardware capabilities */
603 	ddi_taskq_t		*sfp_taskq;	/* sfp-change taskq */
604 	uint32_t		eims;		/* interrupt mask setting */
605 	uint32_t		eimc;		/* interrupt mask clear */
606 	uint32_t		eicr;		/* interrupt cause reg */
607 
608 	uint32_t		ixgbe_state;
609 	link_state_t		link_state;
610 	uint32_t		link_speed;
611 	uint32_t		link_duplex;
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 	uint32_t		rcb_pending;
620 
621 	/*
622 	 * Each msi-x vector: map vector to interrupt cleanup
623 	 */
624 	ixgbe_intr_vector_t	vect_map[MAX_INTR_VECTOR];
625 
626 	/*
627 	 * Receive Rings
628 	 */
629 	ixgbe_rx_ring_t		*rx_rings;	/* Array of rx rings */
630 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
631 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
632 	uint32_t		rx_buf_size;	/* Rx buffer size */
633 	boolean_t		lro_enable;	/* Large Receive Offload */
634 	uint64_t		lro_pkt_count;	/* LRO packet count */
635 	/*
636 	 * Receive Groups
637 	 */
638 	ixgbe_rx_group_t	*rx_groups;	/* Array of rx groups */
639 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
640 
641 	/*
642 	 * Transmit Rings
643 	 */
644 	ixgbe_tx_ring_t		*tx_rings;	/* Array of tx rings */
645 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
646 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
647 	uint32_t		tx_buf_size;	/* Tx buffer size */
648 
649 	boolean_t		tx_ring_init;
650 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
651 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
652 	boolean_t 		lso_enable; 	/* Large Segment Offload */
653 	boolean_t 		mr_enable; 	/* Multiple Tx and Rx Ring */
654 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
655 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
656 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
657 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
658 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
659 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
660 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
661 	uint32_t		intr_throttling[MAX_INTR_VECTOR];
662 	uint32_t		intr_force;
663 	int			fm_capabilities; /* FMA capabilities */
664 
665 	int			intr_type;
666 	int			intr_cnt;
667 	int			intr_cap;
668 	size_t			intr_size;
669 	uint_t			intr_pri;
670 	ddi_intr_handle_t	*htable;
671 	uint32_t		eims_mask;
672 
673 	kmutex_t		gen_lock; /* General lock for device access */
674 	kmutex_t		watchdog_lock;
675 	kmutex_t		rx_pending_lock;
676 
677 	boolean_t		watchdog_enable;
678 	boolean_t		watchdog_start;
679 	timeout_id_t		watchdog_tid;
680 
681 	boolean_t		unicst_init;
682 	uint32_t		unicst_avail;
683 	uint32_t		unicst_total;
684 	ixgbe_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
685 	uint32_t		mcast_count;
686 	struct ether_addr	mcast_table[MAX_NUM_MULTICAST_ADDRESSES];
687 
688 	ulong_t			sys_page_size;
689 
690 	boolean_t		link_check_complete;
691 	hrtime_t		link_check_hrtime;
692 	ddi_periodic_t		periodic_id; /* for link check timer func */
693 
694 	/*
695 	 * Kstat definitions
696 	 */
697 	kstat_t			*ixgbe_ks;
698 
699 	uint32_t		param_en_10000fdx_cap:1,
700 				param_en_1000fdx_cap:1,
701 				param_en_100fdx_cap:1,
702 				param_adv_10000fdx_cap:1,
703 				param_adv_1000fdx_cap:1,
704 				param_adv_100fdx_cap:1,
705 				param_pause_cap:1,
706 				param_asym_pause_cap:1,
707 				param_rem_fault:1,
708 				param_adv_autoneg_cap:1,
709 				param_adv_pause_cap:1,
710 				param_adv_asym_pause_cap:1,
711 				param_adv_rem_fault:1,
712 				param_lp_10000fdx_cap:1,
713 				param_lp_1000fdx_cap:1,
714 				param_lp_100fdx_cap:1,
715 				param_lp_autoneg_cap:1,
716 				param_lp_pause_cap:1,
717 				param_lp_asym_pause_cap:1,
718 				param_lp_rem_fault:1,
719 				param_pad_to_32:12;
720 } ixgbe_t;
721 
722 typedef struct ixgbe_stat {
723 	kstat_named_t link_speed;	/* Link Speed */
724 
725 	kstat_named_t reset_count;	/* Reset Count */
726 
727 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
728 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
729 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
730 
731 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
732 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
733 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
734 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
735 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
736 
737 	kstat_named_t gprc;	/* Good Packets Received Count */
738 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
739 	kstat_named_t gor;	/* Good Octets Received Count */
740 	kstat_named_t got;	/* Good Octets Xmitd Count */
741 	kstat_named_t prc64;	/* Packets Received - 64b */
742 	kstat_named_t prc127;	/* Packets Received - 65-127b */
743 	kstat_named_t prc255;	/* Packets Received - 127-255b */
744 	kstat_named_t prc511;	/* Packets Received - 256-511b */
745 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
746 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
747 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
748 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
749 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
750 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
751 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
752 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
753 	kstat_named_t qprc[16];	/* Queue Packets Received Count */
754 	kstat_named_t qptc[16];	/* Queue Packets Transmitted Count */
755 	kstat_named_t qbrc[16];	/* Queue Bytes Received Count */
756 	kstat_named_t qbtc[16];	/* Queue Bytes Transmitted Count */
757 
758 	kstat_named_t crcerrs;	/* CRC Error Count */
759 	kstat_named_t illerrc;	/* Illegal Byte Error Count */
760 	kstat_named_t errbc;	/* Error Byte Count */
761 	kstat_named_t mspdc;	/* MAC Short Packet Discard Count */
762 	kstat_named_t mpc;	/* Missed Packets Count */
763 	kstat_named_t mlfc;	/* MAC Local Fault Count */
764 	kstat_named_t mrfc;	/* MAC Remote Fault Count */
765 	kstat_named_t rlec;	/* Receive Length Error Count */
766 	kstat_named_t lxontxc;	/* Link XON Transmitted Count */
767 	kstat_named_t lxonrxc;	/* Link XON Received Count */
768 	kstat_named_t lxofftxc;	/* Link XOFF Transmitted Count */
769 	kstat_named_t lxoffrxc;	/* Link XOFF Received Count */
770 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
771 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
772 	kstat_named_t rnbc;	/* Receive No Buffers Count */
773 	kstat_named_t ruc;	/* Receive Undersize Count */
774 	kstat_named_t rfc;	/* Receive Frag Count */
775 	kstat_named_t roc;	/* Receive Oversize Count */
776 	kstat_named_t rjc;	/* Receive Jabber Count */
777 	kstat_named_t tor;	/* Total Octets Recvd Count */
778 	kstat_named_t tot;	/* Total Octets Xmitted Count */
779 	kstat_named_t tpr;	/* Total Packets Received */
780 	kstat_named_t tpt;	/* Total Packets Xmitted */
781 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
782 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
783 	kstat_named_t lroc;	/* LRO Packets Received Count */
784 } ixgbe_stat_t;
785 
786 /*
787  * Function prototypes in ixgbe_buf.c
788  */
789 int ixgbe_alloc_dma(ixgbe_t *);
790 void ixgbe_free_dma(ixgbe_t *);
791 void ixgbe_set_fma_flags(int);
792 void ixgbe_free_dma_buffer(dma_buffer_t *);
793 int ixgbe_alloc_rx_ring_data(ixgbe_rx_ring_t *rx_ring);
794 void ixgbe_free_rx_ring_data(ixgbe_rx_data_t *rx_data);
795 
796 /*
797  * Function prototypes in ixgbe_main.c
798  */
799 int ixgbe_start(ixgbe_t *, boolean_t);
800 void ixgbe_stop(ixgbe_t *, boolean_t);
801 int ixgbe_driver_setup_link(ixgbe_t *, boolean_t);
802 int ixgbe_multicst_add(ixgbe_t *, const uint8_t *);
803 int ixgbe_multicst_remove(ixgbe_t *, const uint8_t *);
804 enum ioc_reply ixgbe_loopback_ioctl(ixgbe_t *, struct iocblk *, mblk_t *);
805 
806 void ixgbe_enable_watchdog_timer(ixgbe_t *);
807 void ixgbe_disable_watchdog_timer(ixgbe_t *);
808 int ixgbe_atomic_reserve(uint32_t *, uint32_t);
809 
810 int ixgbe_check_acc_handle(ddi_acc_handle_t handle);
811 int ixgbe_check_dma_handle(ddi_dma_handle_t handle);
812 void ixgbe_fm_ereport(ixgbe_t *, char *);
813 
814 void ixgbe_fill_ring(void *, mac_ring_type_t, const int, const int,
815     mac_ring_info_t *, mac_ring_handle_t);
816 void ixgbe_fill_group(void *arg, mac_ring_type_t, const int,
817     mac_group_info_t *, mac_group_handle_t);
818 int ixgbe_rx_ring_intr_enable(mac_intr_handle_t);
819 int ixgbe_rx_ring_intr_disable(mac_intr_handle_t);
820 
821 /*
822  * Function prototypes in ixgbe_gld.c
823  */
824 int ixgbe_m_start(void *);
825 void ixgbe_m_stop(void *);
826 int ixgbe_m_promisc(void *, boolean_t);
827 int ixgbe_m_multicst(void *, boolean_t, const uint8_t *);
828 int ixgbe_m_stat(void *, uint_t, uint64_t *);
829 void ixgbe_m_resources(void *);
830 void ixgbe_m_ioctl(void *, queue_t *, mblk_t *);
831 boolean_t ixgbe_m_getcapab(void *, mac_capab_t, void *);
832 int ixgbe_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
833 int ixgbe_m_getprop(void *, const char *, mac_prop_id_t,
834     uint_t, uint_t, void *, uint_t *);
835 int ixgbe_set_priv_prop(ixgbe_t *, const char *, uint_t, const void *);
836 int ixgbe_get_priv_prop(ixgbe_t *, const char *,
837     uint_t, uint_t, void *, uint_t *);
838 boolean_t ixgbe_param_locked(mac_prop_id_t);
839 
840 /*
841  * Function prototypes in ixgbe_rx.c
842  */
843 mblk_t *ixgbe_ring_rx(ixgbe_rx_ring_t *, int);
844 void ixgbe_rx_recycle(caddr_t arg);
845 mblk_t *ixgbe_ring_rx_poll(void *, int);
846 
847 /*
848  * Function prototypes in ixgbe_tx.c
849  */
850 mblk_t *ixgbe_ring_tx(void *, mblk_t *);
851 void ixgbe_free_tcb(tx_control_block_t *);
852 void ixgbe_put_free_list(ixgbe_tx_ring_t *, link_list_t *);
853 uint32_t ixgbe_tx_recycle_legacy(ixgbe_tx_ring_t *);
854 uint32_t ixgbe_tx_recycle_head_wb(ixgbe_tx_ring_t *);
855 
856 /*
857  * Function prototypes in ixgbe_log.c
858  */
859 void ixgbe_notice(void *, const char *, ...);
860 void ixgbe_log(void *, const char *, ...);
861 void ixgbe_error(void *, const char *, ...);
862 
863 /*
864  * Function prototypes in ixgbe_stat.c
865  */
866 int ixgbe_init_stats(ixgbe_t *);
867 
868 #ifdef __cplusplus
869 }
870 #endif
871 
872 #endif /* _IXGBE_SW_H */
873