xref: /titanic_50/usr/src/uts/common/io/ixgbe/ixgbe_sw.h (revision 1e67f0f0096be223aa7f51802953bebd95866ddc)
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_INTR_ADJUST		0x40
84 #define	IXGBE_ERROR			0x80
85 
86 #define	MAX_NUM_UNICAST_ADDRESSES 	0x80
87 #define	MAX_NUM_MULTICAST_ADDRESSES 	0x1000
88 #define	IXGBE_INTR_NONE			0
89 #define	IXGBE_INTR_MSIX			1
90 #define	IXGBE_INTR_MSI			2
91 #define	IXGBE_INTR_LEGACY		3
92 
93 #define	IXGBE_POLL_NULL			-1
94 
95 #define	MAX_COOKIE			18
96 #define	MIN_NUM_TX_DESC			2
97 
98 #define	IXGBE_TX_DESC_LIMIT		32	/* tx desc limitation	*/
99 
100 #define	IXGBE_ADAPTER_REGSET		1	/* map adapter registers */
101 
102 #define	IXGBE_RX_STOPPED		0x1
103 
104 #define	IXGBE_PKG_BUF_16k		16384
105 
106 /*
107  * MAX_xx_QUEUE_NUM and MAX_INTR_VECTOR values need to be the maximum of all
108  * supported silicon types.
109  */
110 #define	MAX_TX_QUEUE_NUM		128
111 #define	MAX_RX_QUEUE_NUM		128
112 #define	MAX_INTR_VECTOR			64
113 #define	MAX_RX_GROUP_NUM		64
114 
115 /*
116  * Maximum values for user configurable parameters
117  */
118 #define	MAX_TX_RING_SIZE		4096
119 #define	MAX_RX_RING_SIZE		4096
120 
121 #define	MAX_RX_LIMIT_PER_INTR		4096
122 
123 #define	MAX_RX_COPY_THRESHOLD		9216
124 #define	MAX_TX_COPY_THRESHOLD		9216
125 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
126 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
127 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
128 
129 /*
130  * Minimum values for user configurable parameters
131  */
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_TX_RING_SIZE		1024
147 #define	DEFAULT_RX_RING_SIZE		1024
148 
149 #define	DEFAULT_MTU			ETHERMTU
150 #define	DEFAULT_RX_LIMIT_PER_INTR	256
151 #define	DEFAULT_RX_COPY_THRESHOLD	128
152 #define	DEFAULT_TX_COPY_THRESHOLD	512
153 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
154 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
155 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
156 #define	DEFAULT_FCRTH			0x20000
157 #define	DEFAULT_FCRTL			0x10000
158 #define	DEFAULT_FCPAUSE			0xFFFF
159 
160 #define	DEFAULT_TX_HCKSUM_ENABLE	B_TRUE
161 #define	DEFAULT_RX_HCKSUM_ENABLE	B_TRUE
162 #define	DEFAULT_LSO_ENABLE		B_TRUE
163 #define	DEFAULT_LRO_ENABLE		B_FALSE
164 #define	DEFAULT_MR_ENABLE		B_TRUE
165 #define	DEFAULT_TX_HEAD_WB_ENABLE	B_TRUE
166 
167 #define	IXGBE_LSO_MAXLEN		65535
168 
169 #define	TX_DRAIN_TIME			200
170 #define	RX_DRAIN_TIME			200
171 
172 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
173 #define	MAX_LINK_DOWN_TIMEOUT		8	/* 8 seconds */
174 
175 #define	IXGBE_CYCLIC_PERIOD		(1000000000)	/* 1s */
176 
177 /*
178  * Extra register bit masks for 82598
179  */
180 #define	IXGBE_PCS1GANA_FDC	0x20
181 #define	IXGBE_PCS1GANLP_LPFD	0x20
182 #define	IXGBE_PCS1GANLP_LPHD	0x40
183 
184 /*
185  * Defined for IP header alignment.
186  */
187 #define	IPHDR_ALIGN_ROOM		2
188 
189 /*
190  * Bit flags for attach_progress
191  */
192 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
193 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
194 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
195 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
196 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
197 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
198 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
199 #define	ATTACH_PROGRESS_INIT		0x0080	/* Device initialized */
200 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
201 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
202 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
203 #define	ATTACH_PROGRESS_FM_INIT		0x2000	/* FMA initialized */
204 #define	ATTACH_PROGRESS_SFP_TASKQ	0x4000	/* SFP taskq created */
205 #define	ATTACH_PROGRESS_LINK_TIMER	0x8000	/* link check timer */
206 
207 #define	PROP_DEFAULT_MTU		"default_mtu"
208 #define	PROP_FLOW_CONTROL		"flow_control"
209 #define	PROP_TX_QUEUE_NUM		"tx_queue_number"
210 #define	PROP_TX_RING_SIZE		"tx_ring_size"
211 #define	PROP_RX_QUEUE_NUM		"rx_queue_number"
212 #define	PROP_RX_RING_SIZE		"rx_ring_size"
213 #define	PROP_RX_GROUP_NUM		"rx_group_number"
214 
215 #define	PROP_INTR_FORCE			"intr_force"
216 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
217 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
218 #define	PROP_LSO_ENABLE			"lso_enable"
219 #define	PROP_LRO_ENABLE			"lro_enable"
220 #define	PROP_MR_ENABLE			"mr_enable"
221 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
222 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
223 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
224 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
225 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
226 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
227 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
228 #define	PROP_INTR_THROTTLING		"intr_throttling"
229 #define	PROP_FM_CAPABLE			"fm_capable"
230 
231 #define	IXGBE_LB_NONE			0
232 #define	IXGBE_LB_EXTERNAL		1
233 #define	IXGBE_LB_INTERNAL_MAC		2
234 #define	IXGBE_LB_INTERNAL_PHY		3
235 #define	IXGBE_LB_INTERNAL_SERDES	4
236 
237 /*
238  * capability/feature flags
239  * Flags named _CAPABLE are set when the NIC hardware is capable of the feature.
240  * Separately, the flag named _ENABLED is set when the feature is enabled.
241  */
242 #define	IXGBE_FLAG_DCA_ENABLED		(u32)(1)
243 #define	IXGBE_FLAG_DCA_CAPABLE		(u32)(1 << 1)
244 #define	IXGBE_FLAG_DCB_ENABLED		(u32)(1 << 2)
245 #define	IXGBE_FLAG_DCB_CAPABLE		(u32)(1 << 4)
246 #define	IXGBE_FLAG_RSS_ENABLED		(u32)(1 << 4)
247 #define	IXGBE_FLAG_RSS_CAPABLE		(u32)(1 << 5)
248 #define	IXGBE_FLAG_VMDQ_CAPABLE		(u32)(1 << 6)
249 #define	IXGBE_FLAG_VMDQ_ENABLED		(u32)(1 << 7)
250 #define	IXGBE_FLAG_FAN_FAIL_CAPABLE	(u32)(1 << 8)
251 #define	IXGBE_FLAG_RSC_CAPABLE		(u32)(1 << 9)
252 
253 /*
254  * Classification mode
255  */
256 #define	IXGBE_CLASSIFY_NONE		0
257 #define	IXGBE_CLASSIFY_RSS		1
258 #define	IXGBE_CLASSIFY_VMDQ		2
259 #define	IXGBE_CLASSIFY_VMDQ_RSS		3
260 
261 /* adapter-specific info for each supported device type */
262 typedef struct adapter_info {
263 	uint32_t	max_rx_que_num; /* maximum number of rx queues */
264 	uint32_t	min_rx_que_num; /* minimum number of rx queues */
265 	uint32_t	def_rx_que_num; /* default number of rx queues */
266 	uint32_t	max_rx_grp_num; /* maximum number of rx groups */
267 	uint32_t	min_rx_grp_num; /* minimum number of rx groups */
268 	uint32_t	def_rx_grp_num; /* default number of rx groups */
269 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
270 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
271 	uint32_t	def_tx_que_num;	/* default number of tx queues */
272 	uint32_t	max_mtu;	/* maximum MTU size */
273 	/*
274 	 * Interrupt throttling is in unit of 256 nsec
275 	 */
276 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
277 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
278 	uint32_t	def_intr_throttle; /* default interrupt throttle */
279 
280 	uint32_t	max_msix_vect;	/* maximum total msix vectors */
281 	uint32_t	max_ring_vect;	/* maximum number of ring vectors */
282 	uint32_t	max_other_vect;	/* maximum number of other vectors */
283 	uint32_t	other_intr;	/* "other" interrupt types handled */
284 	uint32_t	flags;		/* capability flags */
285 } adapter_info_t;
286 
287 /* bits representing all interrupt types other than tx & rx */
288 #define	IXGBE_OTHER_INTR	0x3ff00000
289 #define	IXGBE_82599_OTHER_INTR	0x86100000
290 
291 enum ioc_reply {
292 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
293 	IOC_DONE, 	/* OK, reply sent */
294 	IOC_ACK,	/* OK, just send ACK */
295 	IOC_REPLY	/* OK, just send reply */
296 };
297 
298 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
299 				    0, 0, (flag)))
300 
301 /*
302  * Defined for ring index operations
303  * ASSERT(index < limit)
304  * ASSERT(step < limit)
305  * ASSERT(index1 < limit)
306  * ASSERT(index2 < limit)
307  */
308 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
309 	(index) + (step) : (index) + (step) - (limit))
310 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
311 	(index) - (step) : (index) + (limit) - (step))
312 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
313 	(index2) - (index1) : (index2) + (limit) - (index1))
314 
315 #define	LINK_LIST_INIT(_LH)	\
316 	(_LH)->head = (_LH)->tail = NULL
317 
318 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
319 
320 #define	LIST_POP_HEAD(_LH)	\
321 	(single_link_t *)(_LH)->head; \
322 	{ \
323 		if ((_LH)->head != NULL) { \
324 			(_LH)->head = (_LH)->head->link; \
325 			if ((_LH)->head == NULL) \
326 				(_LH)->tail = NULL; \
327 		} \
328 	}
329 
330 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
331 
332 #define	LIST_PUSH_TAIL(_LH, _E)	\
333 	if ((_LH)->tail != NULL) { \
334 		(_LH)->tail->link = (single_link_t *)(_E); \
335 		(_LH)->tail = (single_link_t *)(_E); \
336 	} else { \
337 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
338 	} \
339 	(_E)->link = NULL;
340 
341 #define	LIST_GET_NEXT(_LH, _E)		\
342 	(((_LH)->tail == (single_link_t *)(_E)) ? \
343 	NULL : ((single_link_t *)(_E))->link)
344 
345 
346 typedef struct single_link {
347 	struct single_link	*link;
348 } single_link_t;
349 
350 typedef struct link_list {
351 	single_link_t		*head;
352 	single_link_t		*tail;
353 } link_list_t;
354 
355 /*
356  * Property lookups
357  */
358 #define	IXGBE_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
359 				    DDI_PROP_DONTPASS, (n))
360 #define	IXGBE_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
361 				    DDI_PROP_DONTPASS, (n), -1)
362 
363 
364 typedef union ixgbe_ether_addr {
365 	struct {
366 		uint32_t	high;
367 		uint32_t	low;
368 	} reg;
369 	struct {
370 		uint8_t		set;
371 		uint8_t		group_index;
372 		uint8_t		addr[ETHERADDRL];
373 	} mac;
374 } ixgbe_ether_addr_t;
375 
376 typedef enum {
377 	USE_NONE,
378 	USE_COPY,
379 	USE_DMA
380 } tx_type_t;
381 
382 typedef struct ixgbe_tx_context {
383 	uint32_t		hcksum_flags;
384 	uint32_t		ip_hdr_len;
385 	uint32_t		mac_hdr_len;
386 	uint32_t		l4_proto;
387 	uint32_t		mss;
388 	uint32_t		l4_hdr_len;
389 	boolean_t		lso_flag;
390 } ixgbe_tx_context_t;
391 
392 /*
393  * Hold address/length of each DMA segment
394  */
395 typedef struct sw_desc {
396 	uint64_t		address;
397 	size_t			length;
398 } sw_desc_t;
399 
400 /*
401  * Handles and addresses of DMA buffer
402  */
403 typedef struct dma_buffer {
404 	caddr_t			address;	/* Virtual address */
405 	uint64_t		dma_address;	/* DMA (Hardware) address */
406 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
407 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
408 	size_t			size;		/* Buffer size */
409 	size_t			len;		/* Data length in the buffer */
410 } dma_buffer_t;
411 
412 /*
413  * Tx Control Block
414  */
415 typedef struct tx_control_block {
416 	single_link_t		link;
417 	uint32_t		last_index; /* last descriptor of the pkt */
418 	uint32_t		frag_num;
419 	uint32_t		desc_num;
420 	mblk_t			*mp;
421 	tx_type_t		tx_type;
422 	ddi_dma_handle_t	tx_dma_handle;
423 	dma_buffer_t		tx_buf;
424 	sw_desc_t		desc[MAX_COOKIE];
425 } tx_control_block_t;
426 
427 /*
428  * RX Control Block
429  */
430 typedef struct rx_control_block {
431 	mblk_t			*mp;
432 	uint32_t		ref_cnt;
433 	dma_buffer_t		rx_buf;
434 	frtn_t			free_rtn;
435 	struct ixgbe_rx_data	*rx_data;
436 	int			lro_next;	/* Index of next rcb */
437 	int			lro_prev;	/* Index of previous rcb */
438 	boolean_t		lro_pkt;	/* Flag for LRO rcb */
439 } rx_control_block_t;
440 
441 /*
442  * Software Data Structure for Tx Ring
443  */
444 typedef struct ixgbe_tx_ring {
445 	uint32_t		index;	/* Ring index */
446 	uint32_t		intr_vector;	/* Interrupt vector index */
447 	uint32_t		vect_bit;	/* vector's bit in register */
448 
449 	/*
450 	 * Mutexes
451 	 */
452 	kmutex_t		tx_lock;
453 	kmutex_t		recycle_lock;
454 	kmutex_t		tcb_head_lock;
455 	kmutex_t		tcb_tail_lock;
456 
457 	/*
458 	 * Tx descriptor ring definitions
459 	 */
460 	dma_buffer_t		tbd_area;
461 	union ixgbe_adv_tx_desc	*tbd_ring;
462 	uint32_t		tbd_head; /* Index of next tbd to recycle */
463 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
464 	uint32_t		tbd_free; /* Number of free tbd */
465 
466 	/*
467 	 * Tx control block list definitions
468 	 */
469 	tx_control_block_t	*tcb_area;
470 	tx_control_block_t	**work_list;
471 	tx_control_block_t	**free_list;
472 	uint32_t		tcb_head; /* Head index of free list */
473 	uint32_t		tcb_tail; /* Tail index of free list */
474 	uint32_t		tcb_free; /* Number of free tcb in free list */
475 
476 	uint32_t		*tbd_head_wb; /* Head write-back */
477 	uint32_t		(*tx_recycle)(struct ixgbe_tx_ring *);
478 
479 	/*
480 	 * s/w context structure for TCP/UDP checksum offload
481 	 * and LSO.
482 	 */
483 	ixgbe_tx_context_t	tx_context;
484 
485 	/*
486 	 * Tx ring settings and status
487 	 */
488 	uint32_t		ring_size; /* Tx descriptor ring size */
489 	uint32_t		free_list_size;	/* Tx free list size */
490 
491 	boolean_t		reschedule;
492 	uint32_t		recycle_fail;
493 	uint32_t		stall_watchdog;
494 
495 #ifdef IXGBE_DEBUG
496 	/*
497 	 * Debug statistics
498 	 */
499 	uint32_t		stat_overload;
500 	uint32_t		stat_fail_no_tbd;
501 	uint32_t		stat_fail_no_tcb;
502 	uint32_t		stat_fail_dma_bind;
503 	uint32_t		stat_reschedule;
504 	uint32_t		stat_break_tbd_limit;
505 	uint32_t		stat_lso_header_fail;
506 #endif
507 	uint64_t		stat_obytes;
508 	uint64_t		stat_opackets;
509 
510 	mac_ring_handle_t	ring_handle;
511 
512 	/*
513 	 * Pointer to the ixgbe struct
514 	 */
515 	struct ixgbe		*ixgbe;
516 } ixgbe_tx_ring_t;
517 
518 /*
519  * Software Receive Ring
520  */
521 typedef struct ixgbe_rx_data {
522 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
523 
524 	/*
525 	 * Rx descriptor ring definitions
526 	 */
527 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
528 	union ixgbe_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
529 	uint32_t		rbd_next;	/* Index of next rx desc */
530 
531 	/*
532 	 * Rx control block list definitions
533 	 */
534 	rx_control_block_t	*rcb_area;
535 	rx_control_block_t	**work_list;	/* Work list of rcbs */
536 	rx_control_block_t	**free_list;	/* Free list of rcbs */
537 	uint32_t		rcb_head;	/* Index of next free rcb */
538 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
539 	uint32_t		rcb_free;	/* Number of free rcbs */
540 
541 	/*
542 	 * Rx sw ring settings and status
543 	 */
544 	uint32_t		ring_size;	/* Rx descriptor ring size */
545 	uint32_t		free_list_size;	/* Rx free list size */
546 
547 	uint32_t		rcb_pending;
548 	uint32_t		flag;
549 
550 	uint32_t		lro_num;	/* Number of rcbs of one LRO */
551 	uint32_t		lro_first;	/* Index of first LRO rcb */
552 
553 	struct ixgbe_rx_ring	*rx_ring;	/* Pointer to rx ring */
554 } ixgbe_rx_data_t;
555 
556 /*
557  * Software Data Structure for Rx Ring
558  */
559 typedef struct ixgbe_rx_ring {
560 	uint32_t		index;		/* Ring index */
561 	uint32_t		group_index;	/* Group index */
562 	uint32_t		hw_index;	/* h/w ring index */
563 	uint32_t		intr_vector;	/* Interrupt vector index */
564 	uint32_t		vect_bit;	/* vector's bit in register */
565 
566 	ixgbe_rx_data_t		*rx_data;	/* Rx software ring */
567 
568 	kmutex_t		rx_lock;	/* Rx access lock */
569 
570 #ifdef IXGBE_DEBUG
571 	/*
572 	 * Debug statistics
573 	 */
574 	uint32_t		stat_frame_error;
575 	uint32_t		stat_cksum_error;
576 	uint32_t		stat_exceed_pkt;
577 #endif
578 	uint64_t		stat_rbytes;
579 	uint64_t		stat_ipackets;
580 
581 	mac_ring_handle_t	ring_handle;
582 	uint64_t		ring_gen_num;
583 
584 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
585 } ixgbe_rx_ring_t;
586 /*
587  * Software Receive Ring Group
588  */
589 typedef struct ixgbe_rx_group {
590 	uint32_t		index;		/* Group index */
591 	mac_group_handle_t	group_handle;   /* call back group handle */
592 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
593 } ixgbe_rx_group_t;
594 
595 /*
596  * structure to map interrupt cleanup to msi-x vector
597  */
598 typedef struct ixgbe_intr_vector {
599 	struct ixgbe *ixgbe;	/* point to my adapter */
600 	ulong_t rx_map[BT_BITOUL(MAX_RX_QUEUE_NUM)];	/* bitmap of rx rings */
601 	int	rxr_cnt;	/* count rx rings */
602 	ulong_t tx_map[BT_BITOUL(MAX_TX_QUEUE_NUM)];	/* bitmap of tx rings */
603 	int	txr_cnt;	/* count tx rings */
604 	ulong_t other_map[BT_BITOUL(2)];		/* bitmap of other */
605 	int	other_cnt;	/* count other interrupt */
606 } ixgbe_intr_vector_t;
607 
608 /*
609  * Software adapter state
610  */
611 typedef struct ixgbe {
612 	int 			instance;
613 	mac_handle_t		mac_hdl;
614 	dev_info_t		*dip;
615 	struct ixgbe_hw		hw;
616 	struct ixgbe_osdep	osdep;
617 
618 	adapter_info_t		*capab;	/* adapter hardware capabilities */
619 	ddi_taskq_t		*sfp_taskq;	/* sfp-change taskq */
620 	uint32_t		eims;		/* interrupt mask setting */
621 	uint32_t		eimc;		/* interrupt mask clear */
622 	uint32_t		eicr;		/* interrupt cause reg */
623 
624 	uint32_t		ixgbe_state;
625 	link_state_t		link_state;
626 	uint32_t		link_speed;
627 	uint32_t		link_duplex;
628 
629 	uint32_t		reset_count;
630 	uint32_t		attach_progress;
631 	uint32_t		loopback_mode;
632 	uint32_t		default_mtu;
633 	uint32_t		max_frame_size;
634 
635 	uint32_t		rcb_pending;
636 
637 	/*
638 	 * Each msi-x vector: map vector to interrupt cleanup
639 	 */
640 	ixgbe_intr_vector_t	vect_map[MAX_INTR_VECTOR];
641 
642 	/*
643 	 * Receive Rings
644 	 */
645 	ixgbe_rx_ring_t		*rx_rings;	/* Array of rx rings */
646 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
647 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
648 	uint32_t		rx_buf_size;	/* Rx buffer size */
649 	boolean_t		lro_enable;	/* Large Receive Offload */
650 	uint64_t		lro_pkt_count;	/* LRO packet count */
651 	/*
652 	 * Receive Groups
653 	 */
654 	ixgbe_rx_group_t	*rx_groups;	/* Array of rx groups */
655 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
656 
657 	/*
658 	 * Transmit Rings
659 	 */
660 	ixgbe_tx_ring_t		*tx_rings;	/* Array of tx rings */
661 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
662 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
663 	uint32_t		tx_buf_size;	/* Tx buffer size */
664 
665 	boolean_t		tx_ring_init;
666 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
667 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
668 	boolean_t 		lso_enable; 	/* Large Segment Offload */
669 	boolean_t 		mr_enable; 	/* Multiple Tx and Rx Ring */
670 	uint32_t		classify_mode;	/* Classification mode */
671 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
672 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
673 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
674 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
675 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
676 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
677 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
678 	uint32_t		intr_throttling[MAX_INTR_VECTOR];
679 	uint32_t		intr_force;
680 	int			fm_capabilities; /* FMA capabilities */
681 
682 	int			intr_type;
683 	int			intr_cnt;
684 	uint32_t		intr_cnt_max;
685 	uint32_t		intr_cnt_min;
686 	int			intr_cap;
687 	size_t			intr_size;
688 	uint_t			intr_pri;
689 	ddi_intr_handle_t	*htable;
690 	uint32_t		eims_mask;
691 	ddi_cb_handle_t		cb_hdl;		/* Interrupt callback handle */
692 
693 	kmutex_t		gen_lock; /* General lock for device access */
694 	kmutex_t		watchdog_lock;
695 	kmutex_t		rx_pending_lock;
696 
697 	boolean_t		watchdog_enable;
698 	boolean_t		watchdog_start;
699 	timeout_id_t		watchdog_tid;
700 
701 	boolean_t		unicst_init;
702 	uint32_t		unicst_avail;
703 	uint32_t		unicst_total;
704 	ixgbe_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
705 	uint32_t		mcast_count;
706 	struct ether_addr	mcast_table[MAX_NUM_MULTICAST_ADDRESSES];
707 
708 	ulong_t			sys_page_size;
709 
710 	boolean_t		link_check_complete;
711 	hrtime_t		link_check_hrtime;
712 	ddi_periodic_t		periodic_id; /* for link check timer func */
713 
714 	/*
715 	 * Kstat definitions
716 	 */
717 	kstat_t			*ixgbe_ks;
718 
719 	uint32_t		param_en_10000fdx_cap:1,
720 				param_en_1000fdx_cap:1,
721 				param_en_100fdx_cap:1,
722 				param_adv_10000fdx_cap:1,
723 				param_adv_1000fdx_cap:1,
724 				param_adv_100fdx_cap:1,
725 				param_pause_cap:1,
726 				param_asym_pause_cap:1,
727 				param_rem_fault:1,
728 				param_adv_autoneg_cap:1,
729 				param_adv_pause_cap:1,
730 				param_adv_asym_pause_cap:1,
731 				param_adv_rem_fault:1,
732 				param_lp_10000fdx_cap:1,
733 				param_lp_1000fdx_cap:1,
734 				param_lp_100fdx_cap:1,
735 				param_lp_autoneg_cap:1,
736 				param_lp_pause_cap:1,
737 				param_lp_asym_pause_cap:1,
738 				param_lp_rem_fault:1,
739 				param_pad_to_32:12;
740 } ixgbe_t;
741 
742 typedef struct ixgbe_stat {
743 	kstat_named_t link_speed;	/* Link Speed */
744 
745 	kstat_named_t reset_count;	/* Reset Count */
746 
747 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
748 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
749 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
750 
751 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
752 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
753 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
754 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
755 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
756 
757 	kstat_named_t gprc;	/* Good Packets Received Count */
758 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
759 	kstat_named_t gor;	/* Good Octets Received Count */
760 	kstat_named_t got;	/* Good Octets Xmitd Count */
761 	kstat_named_t prc64;	/* Packets Received - 64b */
762 	kstat_named_t prc127;	/* Packets Received - 65-127b */
763 	kstat_named_t prc255;	/* Packets Received - 127-255b */
764 	kstat_named_t prc511;	/* Packets Received - 256-511b */
765 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
766 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
767 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
768 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
769 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
770 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
771 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
772 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
773 	kstat_named_t qprc[16];	/* Queue Packets Received Count */
774 	kstat_named_t qptc[16];	/* Queue Packets Transmitted Count */
775 	kstat_named_t qbrc[16];	/* Queue Bytes Received Count */
776 	kstat_named_t qbtc[16];	/* Queue Bytes Transmitted Count */
777 
778 	kstat_named_t crcerrs;	/* CRC Error Count */
779 	kstat_named_t illerrc;	/* Illegal Byte Error Count */
780 	kstat_named_t errbc;	/* Error Byte Count */
781 	kstat_named_t mspdc;	/* MAC Short Packet Discard Count */
782 	kstat_named_t mpc;	/* Missed Packets Count */
783 	kstat_named_t mlfc;	/* MAC Local Fault Count */
784 	kstat_named_t mrfc;	/* MAC Remote Fault Count */
785 	kstat_named_t rlec;	/* Receive Length Error Count */
786 	kstat_named_t lxontxc;	/* Link XON Transmitted Count */
787 	kstat_named_t lxonrxc;	/* Link XON Received Count */
788 	kstat_named_t lxofftxc;	/* Link XOFF Transmitted Count */
789 	kstat_named_t lxoffrxc;	/* Link XOFF Received Count */
790 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
791 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
792 	kstat_named_t rnbc;	/* Receive No Buffers Count */
793 	kstat_named_t ruc;	/* Receive Undersize Count */
794 	kstat_named_t rfc;	/* Receive Frag Count */
795 	kstat_named_t roc;	/* Receive Oversize Count */
796 	kstat_named_t rjc;	/* Receive Jabber Count */
797 	kstat_named_t tor;	/* Total Octets Recvd Count */
798 	kstat_named_t tot;	/* Total Octets Xmitted Count */
799 	kstat_named_t tpr;	/* Total Packets Received */
800 	kstat_named_t tpt;	/* Total Packets Xmitted */
801 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
802 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
803 	kstat_named_t lroc;	/* LRO Packets Received Count */
804 } ixgbe_stat_t;
805 
806 /*
807  * Function prototypes in ixgbe_buf.c
808  */
809 int ixgbe_alloc_dma(ixgbe_t *);
810 void ixgbe_free_dma(ixgbe_t *);
811 void ixgbe_set_fma_flags(int);
812 void ixgbe_free_dma_buffer(dma_buffer_t *);
813 int ixgbe_alloc_rx_ring_data(ixgbe_rx_ring_t *rx_ring);
814 void ixgbe_free_rx_ring_data(ixgbe_rx_data_t *rx_data);
815 
816 /*
817  * Function prototypes in ixgbe_main.c
818  */
819 int ixgbe_start(ixgbe_t *, boolean_t);
820 void ixgbe_stop(ixgbe_t *, boolean_t);
821 int ixgbe_driver_setup_link(ixgbe_t *, boolean_t);
822 int ixgbe_multicst_add(ixgbe_t *, const uint8_t *);
823 int ixgbe_multicst_remove(ixgbe_t *, const uint8_t *);
824 enum ioc_reply ixgbe_loopback_ioctl(ixgbe_t *, struct iocblk *, mblk_t *);
825 
826 void ixgbe_enable_watchdog_timer(ixgbe_t *);
827 void ixgbe_disable_watchdog_timer(ixgbe_t *);
828 int ixgbe_atomic_reserve(uint32_t *, uint32_t);
829 
830 int ixgbe_check_acc_handle(ddi_acc_handle_t handle);
831 int ixgbe_check_dma_handle(ddi_dma_handle_t handle);
832 void ixgbe_fm_ereport(ixgbe_t *, char *);
833 
834 void ixgbe_fill_ring(void *, mac_ring_type_t, const int, const int,
835     mac_ring_info_t *, mac_ring_handle_t);
836 void ixgbe_fill_group(void *arg, mac_ring_type_t, const int,
837     mac_group_info_t *, mac_group_handle_t);
838 int ixgbe_rx_ring_intr_enable(mac_intr_handle_t);
839 int ixgbe_rx_ring_intr_disable(mac_intr_handle_t);
840 
841 /*
842  * Function prototypes in ixgbe_gld.c
843  */
844 int ixgbe_m_start(void *);
845 void ixgbe_m_stop(void *);
846 int ixgbe_m_promisc(void *, boolean_t);
847 int ixgbe_m_multicst(void *, boolean_t, const uint8_t *);
848 void ixgbe_m_resources(void *);
849 void ixgbe_m_ioctl(void *, queue_t *, mblk_t *);
850 boolean_t ixgbe_m_getcapab(void *, mac_capab_t, void *);
851 int ixgbe_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
852 int ixgbe_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *);
853 void ixgbe_m_propinfo(void *, const char *, mac_prop_id_t,
854     mac_prop_info_handle_t);
855 int ixgbe_set_priv_prop(ixgbe_t *, const char *, uint_t, const void *);
856 int ixgbe_get_priv_prop(ixgbe_t *, const char *, uint_t, void *);
857 boolean_t ixgbe_param_locked(mac_prop_id_t);
858 
859 /*
860  * Function prototypes in ixgbe_rx.c
861  */
862 mblk_t *ixgbe_ring_rx(ixgbe_rx_ring_t *, int);
863 void ixgbe_rx_recycle(caddr_t arg);
864 mblk_t *ixgbe_ring_rx_poll(void *, int);
865 
866 /*
867  * Function prototypes in ixgbe_tx.c
868  */
869 mblk_t *ixgbe_ring_tx(void *, mblk_t *);
870 void ixgbe_free_tcb(tx_control_block_t *);
871 void ixgbe_put_free_list(ixgbe_tx_ring_t *, link_list_t *);
872 uint32_t ixgbe_tx_recycle_legacy(ixgbe_tx_ring_t *);
873 uint32_t ixgbe_tx_recycle_head_wb(ixgbe_tx_ring_t *);
874 
875 /*
876  * Function prototypes in ixgbe_log.c
877  */
878 void ixgbe_notice(void *, const char *, ...);
879 void ixgbe_log(void *, const char *, ...);
880 void ixgbe_error(void *, const char *, ...);
881 
882 /*
883  * Function prototypes in ixgbe_stat.c
884  */
885 int ixgbe_init_stats(ixgbe_t *);
886 int ixgbe_m_stat(void *, uint_t, uint64_t *);
887 int ixgbe_rx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
888 int ixgbe_tx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
889 
890 #ifdef __cplusplus
891 }
892 #endif
893 
894 #endif /* _IXGBE_SW_H */
895