xref: /titanic_51/usr/src/uts/common/io/ixgbe/ixgbe_sw.h (revision 430b4c467020edf2445feb0c21db01c88b86243a)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright(c) 2007-2010 Intel Corporation. All rights reserved.
24  */
25 
26 /*
27  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
28  */
29 
30 #ifndef	_IXGBE_SW_H
31 #define	_IXGBE_SW_H
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 #include <sys/types.h>
38 #include <sys/conf.h>
39 #include <sys/debug.h>
40 #include <sys/stropts.h>
41 #include <sys/stream.h>
42 #include <sys/strsun.h>
43 #include <sys/strlog.h>
44 #include <sys/kmem.h>
45 #include <sys/stat.h>
46 #include <sys/kstat.h>
47 #include <sys/modctl.h>
48 #include <sys/errno.h>
49 #include <sys/dlpi.h>
50 #include <sys/mac_provider.h>
51 #include <sys/mac_ether.h>
52 #include <sys/vlan.h>
53 #include <sys/ddi.h>
54 #include <sys/sunddi.h>
55 #include <sys/pci.h>
56 #include <sys/pcie.h>
57 #include <sys/sdt.h>
58 #include <sys/ethernet.h>
59 #include <sys/pattr.h>
60 #include <sys/strsubr.h>
61 #include <sys/netlb.h>
62 #include <sys/random.h>
63 #include <inet/common.h>
64 #include <inet/tcp.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/disp.h>
73 #include <sys/fm/io/ddi.h>
74 #include "ixgbe_api.h"
75 
76 #define	MODULE_NAME			"ixgbe"	/* module name */
77 
78 #define	IXGBE_FAILURE			DDI_FAILURE
79 
80 #define	IXGBE_UNKNOWN			0x00
81 #define	IXGBE_INITIALIZED		0x01
82 #define	IXGBE_STARTED			0x02
83 #define	IXGBE_SUSPENDED			0x04
84 #define	IXGBE_STALL			0x08
85 #define	IXGBE_OVERTEMP			0x20
86 #define	IXGBE_INTR_ADJUST		0x40
87 #define	IXGBE_ERROR			0x80
88 
89 #define	MAX_NUM_UNICAST_ADDRESSES 	0x80
90 #define	MAX_NUM_MULTICAST_ADDRESSES 	0x1000
91 #define	IXGBE_INTR_NONE			0
92 #define	IXGBE_INTR_MSIX			1
93 #define	IXGBE_INTR_MSI			2
94 #define	IXGBE_INTR_LEGACY		3
95 
96 #define	IXGBE_POLL_NULL			-1
97 
98 #define	MAX_COOKIE			18
99 #define	MIN_NUM_TX_DESC			2
100 
101 #define	IXGBE_TX_DESC_LIMIT		32	/* tx desc limitation	*/
102 
103 #define	IXGBE_ADAPTER_REGSET		1	/* map adapter registers */
104 
105 #define	IXGBE_RX_STOPPED		0x1
106 
107 #define	IXGBE_PKG_BUF_16k		16384
108 
109 /*
110  * MAX_xx_QUEUE_NUM and MAX_INTR_VECTOR values need to be the maximum of all
111  * supported silicon types.
112  */
113 #define	MAX_TX_QUEUE_NUM		128
114 #define	MAX_RX_QUEUE_NUM		128
115 #define	MAX_INTR_VECTOR			64
116 
117 /*
118  * Maximum values for user configurable parameters
119  */
120 #define	MAX_TX_RING_SIZE		4096
121 #define	MAX_RX_RING_SIZE		4096
122 
123 #define	MAX_RX_LIMIT_PER_INTR		4096
124 
125 #define	MAX_RX_COPY_THRESHOLD		9216
126 #define	MAX_TX_COPY_THRESHOLD		9216
127 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
128 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
129 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
130 
131 /*
132  * Minimum values for user configurable parameters
133  */
134 #define	MIN_TX_RING_SIZE		64
135 #define	MIN_RX_RING_SIZE		64
136 
137 #define	MIN_MTU				ETHERMIN
138 #define	MIN_RX_LIMIT_PER_INTR		16
139 #define	MIN_TX_COPY_THRESHOLD		0
140 #define	MIN_RX_COPY_THRESHOLD		0
141 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
142 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
143 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
144 
145 /*
146  * Default values for user configurable parameters
147  */
148 #define	DEFAULT_TX_RING_SIZE		1024
149 #define	DEFAULT_RX_RING_SIZE		1024
150 
151 #define	DEFAULT_MTU			ETHERMTU
152 #define	DEFAULT_RX_LIMIT_PER_INTR	256
153 #define	DEFAULT_RX_COPY_THRESHOLD	128
154 #define	DEFAULT_TX_COPY_THRESHOLD	512
155 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
156 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
157 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
158 #define	DEFAULT_FCRTH			0x20000
159 #define	DEFAULT_FCRTL			0x10000
160 #define	DEFAULT_FCPAUSE			0xFFFF
161 
162 #define	DEFAULT_TX_HCKSUM_ENABLE	B_TRUE
163 #define	DEFAULT_RX_HCKSUM_ENABLE	B_TRUE
164 #define	DEFAULT_LSO_ENABLE		B_TRUE
165 #define	DEFAULT_LRO_ENABLE		B_FALSE
166 #define	DEFAULT_MR_ENABLE		B_TRUE
167 #define	DEFAULT_TX_HEAD_WB_ENABLE	B_TRUE
168 #define	DEFAULT_RELAX_ORDER_ENABLE	B_TRUE
169 
170 #define	IXGBE_LSO_MAXLEN		65535
171 
172 #define	TX_DRAIN_TIME			200
173 #define	RX_DRAIN_TIME			200
174 
175 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
176 #define	MAX_LINK_DOWN_TIMEOUT		8	/* 8 seconds */
177 
178 #define	IXGBE_CYCLIC_PERIOD		(1000000000)	/* 1s */
179 
180 /*
181  * Extra register bit masks for 82598
182  */
183 #define	IXGBE_PCS1GANA_FDC	0x20
184 #define	IXGBE_PCS1GANLP_LPFD	0x20
185 #define	IXGBE_PCS1GANLP_LPHD	0x40
186 
187 /*
188  * Defined for IP header alignment.
189  */
190 #define	IPHDR_ALIGN_ROOM		2
191 
192 /*
193  * Bit flags for attach_progress
194  */
195 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
196 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
197 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
198 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
199 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
200 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
201 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
202 #define	ATTACH_PROGRESS_INIT		0x0080	/* Device initialized */
203 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
204 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
205 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
206 #define	ATTACH_PROGRESS_FM_INIT		0x2000	/* FMA initialized */
207 #define	ATTACH_PROGRESS_SFP_TASKQ	0x4000	/* SFP taskq created */
208 #define	ATTACH_PROGRESS_LINK_TIMER	0x8000	/* link check timer */
209 #define	ATTACH_PROGRESS_OVERTEMP_TASKQ	0x10000 /* Over-temp taskq created */
210 
211 #define	PROP_DEFAULT_MTU		"default_mtu"
212 #define	PROP_FLOW_CONTROL		"flow_control"
213 #define	PROP_TX_QUEUE_NUM		"tx_queue_number"
214 #define	PROP_TX_RING_SIZE		"tx_ring_size"
215 #define	PROP_RX_QUEUE_NUM		"rx_queue_number"
216 #define	PROP_RX_RING_SIZE		"rx_ring_size"
217 #define	PROP_RX_GROUP_NUM		"rx_group_number"
218 
219 #define	PROP_INTR_FORCE			"intr_force"
220 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
221 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
222 #define	PROP_LSO_ENABLE			"lso_enable"
223 #define	PROP_LRO_ENABLE			"lro_enable"
224 #define	PROP_MR_ENABLE			"mr_enable"
225 #define	PROP_RELAX_ORDER_ENABLE		"relax_order_enable"
226 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
227 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
228 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
229 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
230 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
231 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
232 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
233 #define	PROP_INTR_THROTTLING		"intr_throttling"
234 #define	PROP_FM_CAPABLE			"fm_capable"
235 
236 #define	IXGBE_LB_NONE			0
237 #define	IXGBE_LB_EXTERNAL		1
238 #define	IXGBE_LB_INTERNAL_MAC		2
239 #define	IXGBE_LB_INTERNAL_PHY		3
240 #define	IXGBE_LB_INTERNAL_SERDES	4
241 
242 /*
243  * capability/feature flags
244  * Flags named _CAPABLE are set when the NIC hardware is capable of the feature.
245  * Separately, the flag named _ENABLED is set when the feature is enabled.
246  */
247 #define	IXGBE_FLAG_DCA_ENABLED		(u32)(1)
248 #define	IXGBE_FLAG_DCA_CAPABLE		(u32)(1 << 1)
249 #define	IXGBE_FLAG_DCB_ENABLED		(u32)(1 << 2)
250 #define	IXGBE_FLAG_DCB_CAPABLE		(u32)(1 << 4)
251 #define	IXGBE_FLAG_RSS_ENABLED		(u32)(1 << 4)
252 #define	IXGBE_FLAG_RSS_CAPABLE		(u32)(1 << 5)
253 #define	IXGBE_FLAG_VMDQ_CAPABLE		(u32)(1 << 6)
254 #define	IXGBE_FLAG_VMDQ_ENABLED		(u32)(1 << 7)
255 #define	IXGBE_FLAG_FAN_FAIL_CAPABLE	(u32)(1 << 8)
256 #define	IXGBE_FLAG_RSC_CAPABLE		(u32)(1 << 9)
257 #define	IXGBE_FLAG_SFP_PLUG_CAPABLE	(u32)(1 << 10)
258 #define	IXGBE_FLAG_TEMP_SENSOR_CAPABLE	(u32)(1 << 11)
259 
260 /*
261  * Classification mode
262  */
263 #define	IXGBE_CLASSIFY_NONE		0
264 #define	IXGBE_CLASSIFY_RSS		1
265 #define	IXGBE_CLASSIFY_VMDQ		2
266 #define	IXGBE_CLASSIFY_VMDQ_RSS		3
267 
268 /* adapter-specific info for each supported device type */
269 typedef struct adapter_info {
270 	uint32_t	max_rx_que_num; /* maximum number of rx queues */
271 	uint32_t	min_rx_que_num; /* minimum number of rx queues */
272 	uint32_t	def_rx_que_num; /* default number of rx queues */
273 	uint32_t	max_rx_grp_num; /* maximum number of rx groups */
274 	uint32_t	min_rx_grp_num; /* minimum number of rx groups */
275 	uint32_t	def_rx_grp_num; /* default number of rx groups */
276 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
277 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
278 	uint32_t	def_tx_que_num;	/* default number of tx queues */
279 	uint32_t	max_mtu;	/* maximum MTU size */
280 	/*
281 	 * Interrupt throttling is in unit of 256 nsec
282 	 */
283 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
284 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
285 	uint32_t	def_intr_throttle; /* default interrupt throttle */
286 
287 	uint32_t	max_msix_vect;	/* maximum total msix vectors */
288 	uint32_t	max_ring_vect;	/* maximum number of ring vectors */
289 	uint32_t	max_other_vect;	/* maximum number of other vectors */
290 	uint32_t	other_intr;	/* "other" interrupt types handled */
291 	uint32_t	other_gpie;	/* "other" interrupt types enabling */
292 	uint32_t	flags;		/* capability flags */
293 } adapter_info_t;
294 
295 /* bits representing all interrupt types other than tx & rx */
296 #define	IXGBE_OTHER_INTR	0x3ff00000
297 #define	IXGBE_82599_OTHER_INTR	0x86100000
298 
299 enum ioc_reply {
300 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
301 	IOC_DONE, 	/* OK, reply sent */
302 	IOC_ACK,	/* OK, just send ACK */
303 	IOC_REPLY	/* OK, just send reply */
304 };
305 
306 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
307 				    0, 0, (flag)))
308 
309 /*
310  * Defined for ring index operations
311  * ASSERT(index < limit)
312  * ASSERT(step < limit)
313  * ASSERT(index1 < limit)
314  * ASSERT(index2 < limit)
315  */
316 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
317 	(index) + (step) : (index) + (step) - (limit))
318 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
319 	(index) - (step) : (index) + (limit) - (step))
320 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
321 	(index2) - (index1) : (index2) + (limit) - (index1))
322 
323 #define	LINK_LIST_INIT(_LH)	\
324 	(_LH)->head = (_LH)->tail = NULL
325 
326 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
327 
328 #define	LIST_POP_HEAD(_LH)	\
329 	(single_link_t *)(_LH)->head; \
330 	{ \
331 		if ((_LH)->head != NULL) { \
332 			(_LH)->head = (_LH)->head->link; \
333 			if ((_LH)->head == NULL) \
334 				(_LH)->tail = NULL; \
335 		} \
336 	}
337 
338 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
339 
340 #define	LIST_PUSH_TAIL(_LH, _E)	\
341 	if ((_LH)->tail != NULL) { \
342 		(_LH)->tail->link = (single_link_t *)(_E); \
343 		(_LH)->tail = (single_link_t *)(_E); \
344 	} else { \
345 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
346 	} \
347 	(_E)->link = NULL;
348 
349 #define	LIST_GET_NEXT(_LH, _E)		\
350 	(((_LH)->tail == (single_link_t *)(_E)) ? \
351 	NULL : ((single_link_t *)(_E))->link)
352 
353 
354 typedef struct single_link {
355 	struct single_link	*link;
356 } single_link_t;
357 
358 typedef struct link_list {
359 	single_link_t		*head;
360 	single_link_t		*tail;
361 } link_list_t;
362 
363 /*
364  * Property lookups
365  */
366 #define	IXGBE_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
367 				    DDI_PROP_DONTPASS, (n))
368 #define	IXGBE_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
369 				    DDI_PROP_DONTPASS, (n), -1)
370 
371 
372 typedef union ixgbe_ether_addr {
373 	struct {
374 		uint32_t	high;
375 		uint32_t	low;
376 	} reg;
377 	struct {
378 		uint8_t		set;
379 		uint8_t		group_index;
380 		uint8_t		addr[ETHERADDRL];
381 	} mac;
382 } ixgbe_ether_addr_t;
383 
384 typedef enum {
385 	USE_NONE,
386 	USE_COPY,
387 	USE_DMA
388 } tx_type_t;
389 
390 typedef struct ixgbe_tx_context {
391 	uint32_t		hcksum_flags;
392 	uint32_t		ip_hdr_len;
393 	uint32_t		mac_hdr_len;
394 	uint32_t		l4_proto;
395 	uint32_t		mss;
396 	uint32_t		l4_hdr_len;
397 	boolean_t		lso_flag;
398 } ixgbe_tx_context_t;
399 
400 /*
401  * Hold address/length of each DMA segment
402  */
403 typedef struct sw_desc {
404 	uint64_t		address;
405 	size_t			length;
406 } sw_desc_t;
407 
408 /*
409  * Handles and addresses of DMA buffer
410  */
411 typedef struct dma_buffer {
412 	caddr_t			address;	/* Virtual address */
413 	uint64_t		dma_address;	/* DMA (Hardware) address */
414 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
415 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
416 	size_t			size;		/* Buffer size */
417 	size_t			len;		/* Data length in the buffer */
418 } dma_buffer_t;
419 
420 /*
421  * Tx Control Block
422  */
423 typedef struct tx_control_block {
424 	single_link_t		link;
425 	uint32_t		last_index; /* last descriptor of the pkt */
426 	uint32_t		frag_num;
427 	uint32_t		desc_num;
428 	mblk_t			*mp;
429 	tx_type_t		tx_type;
430 	ddi_dma_handle_t	tx_dma_handle;
431 	dma_buffer_t		tx_buf;
432 	sw_desc_t		desc[MAX_COOKIE];
433 } tx_control_block_t;
434 
435 /*
436  * RX Control Block
437  */
438 typedef struct rx_control_block {
439 	mblk_t			*mp;
440 	uint32_t		ref_cnt;
441 	dma_buffer_t		rx_buf;
442 	frtn_t			free_rtn;
443 	struct ixgbe_rx_data	*rx_data;
444 	int			lro_next;	/* Index of next rcb */
445 	int			lro_prev;	/* Index of previous rcb */
446 	boolean_t		lro_pkt;	/* Flag for LRO rcb */
447 } rx_control_block_t;
448 
449 /*
450  * Software Data Structure for Tx Ring
451  */
452 typedef struct ixgbe_tx_ring {
453 	uint32_t		index;	/* Ring index */
454 	uint32_t		intr_vector;	/* Interrupt vector index */
455 	uint32_t		vect_bit;	/* vector's bit in register */
456 
457 	/*
458 	 * Mutexes
459 	 */
460 	kmutex_t		tx_lock;
461 	kmutex_t		recycle_lock;
462 	kmutex_t		tcb_head_lock;
463 	kmutex_t		tcb_tail_lock;
464 
465 	/*
466 	 * Tx descriptor ring definitions
467 	 */
468 	dma_buffer_t		tbd_area;
469 	union ixgbe_adv_tx_desc	*tbd_ring;
470 	uint32_t		tbd_head; /* Index of next tbd to recycle */
471 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
472 	uint32_t		tbd_free; /* Number of free tbd */
473 
474 	/*
475 	 * Tx control block list definitions
476 	 */
477 	tx_control_block_t	*tcb_area;
478 	tx_control_block_t	**work_list;
479 	tx_control_block_t	**free_list;
480 	uint32_t		tcb_head; /* Head index of free list */
481 	uint32_t		tcb_tail; /* Tail index of free list */
482 	uint32_t		tcb_free; /* Number of free tcb in free list */
483 
484 	uint32_t		*tbd_head_wb; /* Head write-back */
485 	uint32_t		(*tx_recycle)(struct ixgbe_tx_ring *);
486 
487 	/*
488 	 * s/w context structure for TCP/UDP checksum offload
489 	 * and LSO.
490 	 */
491 	ixgbe_tx_context_t	tx_context;
492 
493 	/*
494 	 * Tx ring settings and status
495 	 */
496 	uint32_t		ring_size; /* Tx descriptor ring size */
497 	uint32_t		free_list_size;	/* Tx free list size */
498 
499 	boolean_t		reschedule;
500 	uint32_t		recycle_fail;
501 	uint32_t		stall_watchdog;
502 
503 #ifdef IXGBE_DEBUG
504 	/*
505 	 * Debug statistics
506 	 */
507 	uint32_t		stat_overload;
508 	uint32_t		stat_fail_no_tbd;
509 	uint32_t		stat_fail_no_tcb;
510 	uint32_t		stat_fail_dma_bind;
511 	uint32_t		stat_reschedule;
512 	uint32_t		stat_break_tbd_limit;
513 	uint32_t		stat_lso_header_fail;
514 #endif
515 	uint64_t		stat_obytes;
516 	uint64_t		stat_opackets;
517 
518 	mac_ring_handle_t	ring_handle;
519 
520 	/*
521 	 * Pointer to the ixgbe struct
522 	 */
523 	struct ixgbe		*ixgbe;
524 } ixgbe_tx_ring_t;
525 
526 /*
527  * Software Receive Ring
528  */
529 typedef struct ixgbe_rx_data {
530 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
531 
532 	/*
533 	 * Rx descriptor ring definitions
534 	 */
535 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
536 	union ixgbe_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
537 	uint32_t		rbd_next;	/* Index of next rx desc */
538 
539 	/*
540 	 * Rx control block list definitions
541 	 */
542 	rx_control_block_t	*rcb_area;
543 	rx_control_block_t	**work_list;	/* Work list of rcbs */
544 	rx_control_block_t	**free_list;	/* Free list of rcbs */
545 	uint32_t		rcb_head;	/* Index of next free rcb */
546 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
547 	uint32_t		rcb_free;	/* Number of free rcbs */
548 
549 	/*
550 	 * Rx sw ring settings and status
551 	 */
552 	uint32_t		ring_size;	/* Rx descriptor ring size */
553 	uint32_t		free_list_size;	/* Rx free list size */
554 
555 	uint32_t		rcb_pending;
556 	uint32_t		flag;
557 
558 	uint32_t		lro_num;	/* Number of rcbs of one LRO */
559 	uint32_t		lro_first;	/* Index of first LRO rcb */
560 
561 	struct ixgbe_rx_ring	*rx_ring;	/* Pointer to rx ring */
562 } ixgbe_rx_data_t;
563 
564 /*
565  * Software Data Structure for Rx Ring
566  */
567 typedef struct ixgbe_rx_ring {
568 	uint32_t		index;		/* Ring index */
569 	uint32_t		group_index;	/* Group index */
570 	uint32_t		hw_index;	/* h/w ring index */
571 	uint32_t		intr_vector;	/* Interrupt vector index */
572 	uint32_t		vect_bit;	/* vector's bit in register */
573 
574 	ixgbe_rx_data_t		*rx_data;	/* Rx software ring */
575 
576 	kmutex_t		rx_lock;	/* Rx access lock */
577 
578 #ifdef IXGBE_DEBUG
579 	/*
580 	 * Debug statistics
581 	 */
582 	uint32_t		stat_frame_error;
583 	uint32_t		stat_cksum_error;
584 	uint32_t		stat_exceed_pkt;
585 #endif
586 	uint64_t		stat_rbytes;
587 	uint64_t		stat_ipackets;
588 
589 	mac_ring_handle_t	ring_handle;
590 	uint64_t		ring_gen_num;
591 
592 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
593 } ixgbe_rx_ring_t;
594 /*
595  * Software Receive Ring Group
596  */
597 typedef struct ixgbe_rx_group {
598 	uint32_t		index;		/* Group index */
599 	mac_group_handle_t	group_handle;   /* call back group handle */
600 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
601 } ixgbe_rx_group_t;
602 
603 /*
604  * structure to map interrupt cleanup to msi-x vector
605  */
606 typedef struct ixgbe_intr_vector {
607 	struct ixgbe *ixgbe;	/* point to my adapter */
608 	ulong_t rx_map[BT_BITOUL(MAX_RX_QUEUE_NUM)];	/* bitmap of rx rings */
609 	int	rxr_cnt;	/* count rx rings */
610 	ulong_t tx_map[BT_BITOUL(MAX_TX_QUEUE_NUM)];	/* bitmap of tx rings */
611 	int	txr_cnt;	/* count tx rings */
612 	ulong_t other_map[BT_BITOUL(2)];		/* bitmap of other */
613 	int	other_cnt;	/* count other interrupt */
614 } ixgbe_intr_vector_t;
615 
616 /*
617  * Software adapter state
618  */
619 typedef struct ixgbe {
620 	int 			instance;
621 	mac_handle_t		mac_hdl;
622 	dev_info_t		*dip;
623 	struct ixgbe_hw		hw;
624 	struct ixgbe_osdep	osdep;
625 
626 	adapter_info_t		*capab;	/* adapter hardware capabilities */
627 	ddi_taskq_t		*sfp_taskq;	/* sfp-change taskq */
628 	ddi_taskq_t		*overtemp_taskq; /* overtemp taskq */
629 	uint32_t		eims;		/* interrupt mask setting */
630 	uint32_t		eimc;		/* interrupt mask clear */
631 	uint32_t		eicr;		/* interrupt cause reg */
632 
633 	uint32_t		ixgbe_state;
634 	link_state_t		link_state;
635 	uint32_t		link_speed;
636 	uint32_t		link_duplex;
637 
638 	uint32_t		reset_count;
639 	uint32_t		attach_progress;
640 	uint32_t		loopback_mode;
641 	uint32_t		default_mtu;
642 	uint32_t		max_frame_size;
643 
644 	uint32_t		rcb_pending;
645 
646 	/*
647 	 * Each msi-x vector: map vector to interrupt cleanup
648 	 */
649 	ixgbe_intr_vector_t	vect_map[MAX_INTR_VECTOR];
650 
651 	/*
652 	 * Receive Rings
653 	 */
654 	ixgbe_rx_ring_t		*rx_rings;	/* Array of rx rings */
655 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
656 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
657 	uint32_t		rx_buf_size;	/* Rx buffer size */
658 	boolean_t		lro_enable;	/* Large Receive Offload */
659 	uint64_t		lro_pkt_count;	/* LRO packet count */
660 	/*
661 	 * Receive Groups
662 	 */
663 	ixgbe_rx_group_t	*rx_groups;	/* Array of rx groups */
664 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
665 
666 	/*
667 	 * Transmit Rings
668 	 */
669 	ixgbe_tx_ring_t		*tx_rings;	/* Array of tx rings */
670 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
671 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
672 	uint32_t		tx_buf_size;	/* Tx buffer size */
673 
674 	boolean_t		tx_ring_init;
675 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
676 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
677 	boolean_t 		lso_enable; 	/* Large Segment Offload */
678 	boolean_t 		mr_enable; 	/* Multiple Tx and Rx Ring */
679 	boolean_t		relax_order_enable; /* Relax Order */
680 	uint32_t		classify_mode;	/* Classification mode */
681 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
682 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
683 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
684 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
685 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
686 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
687 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
688 	uint32_t		intr_throttling[MAX_INTR_VECTOR];
689 	uint32_t		intr_force;
690 	int			fm_capabilities; /* FMA capabilities */
691 
692 	int			intr_type;
693 	int			intr_cnt;
694 	uint32_t		intr_cnt_max;
695 	uint32_t		intr_cnt_min;
696 	int			intr_cap;
697 	size_t			intr_size;
698 	uint_t			intr_pri;
699 	ddi_intr_handle_t	*htable;
700 	uint32_t		eims_mask;
701 	ddi_cb_handle_t		cb_hdl;		/* Interrupt callback handle */
702 
703 	kmutex_t		gen_lock; /* General lock for device access */
704 	kmutex_t		watchdog_lock;
705 	kmutex_t		rx_pending_lock;
706 
707 	boolean_t		watchdog_enable;
708 	boolean_t		watchdog_start;
709 	timeout_id_t		watchdog_tid;
710 
711 	boolean_t		unicst_init;
712 	uint32_t		unicst_avail;
713 	uint32_t		unicst_total;
714 	ixgbe_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
715 	uint32_t		mcast_count;
716 	struct ether_addr	mcast_table[MAX_NUM_MULTICAST_ADDRESSES];
717 
718 	ulong_t			sys_page_size;
719 
720 	boolean_t		link_check_complete;
721 	hrtime_t		link_check_hrtime;
722 	ddi_periodic_t		periodic_id; /* for link check timer func */
723 
724 	/*
725 	 * Kstat definitions
726 	 */
727 	kstat_t			*ixgbe_ks;
728 
729 	uint32_t		param_en_10000fdx_cap:1,
730 				param_en_1000fdx_cap:1,
731 				param_en_100fdx_cap:1,
732 				param_adv_10000fdx_cap:1,
733 				param_adv_1000fdx_cap:1,
734 				param_adv_100fdx_cap:1,
735 				param_pause_cap:1,
736 				param_asym_pause_cap:1,
737 				param_rem_fault:1,
738 				param_adv_autoneg_cap:1,
739 				param_adv_pause_cap:1,
740 				param_adv_asym_pause_cap:1,
741 				param_adv_rem_fault:1,
742 				param_lp_10000fdx_cap:1,
743 				param_lp_1000fdx_cap:1,
744 				param_lp_100fdx_cap:1,
745 				param_lp_autoneg_cap:1,
746 				param_lp_pause_cap:1,
747 				param_lp_asym_pause_cap:1,
748 				param_lp_rem_fault:1,
749 				param_pad_to_32:12;
750 } ixgbe_t;
751 
752 typedef struct ixgbe_stat {
753 	kstat_named_t link_speed;	/* Link Speed */
754 
755 	kstat_named_t reset_count;	/* Reset Count */
756 
757 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
758 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
759 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
760 
761 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
762 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
763 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
764 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
765 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
766 
767 	kstat_named_t gprc;	/* Good Packets Received Count */
768 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
769 	kstat_named_t gor;	/* Good Octets Received Count */
770 	kstat_named_t got;	/* Good Octets Xmitd Count */
771 	kstat_named_t prc64;	/* Packets Received - 64b */
772 	kstat_named_t prc127;	/* Packets Received - 65-127b */
773 	kstat_named_t prc255;	/* Packets Received - 127-255b */
774 	kstat_named_t prc511;	/* Packets Received - 256-511b */
775 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
776 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
777 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
778 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
779 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
780 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
781 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
782 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
783 	kstat_named_t qprc[16];	/* Queue Packets Received Count */
784 	kstat_named_t qptc[16];	/* Queue Packets Transmitted Count */
785 	kstat_named_t qbrc[16];	/* Queue Bytes Received Count */
786 	kstat_named_t qbtc[16];	/* Queue Bytes Transmitted Count */
787 
788 	kstat_named_t crcerrs;	/* CRC Error Count */
789 	kstat_named_t illerrc;	/* Illegal Byte Error Count */
790 	kstat_named_t errbc;	/* Error Byte Count */
791 	kstat_named_t mspdc;	/* MAC Short Packet Discard Count */
792 	kstat_named_t mpc;	/* Missed Packets Count */
793 	kstat_named_t mlfc;	/* MAC Local Fault Count */
794 	kstat_named_t mrfc;	/* MAC Remote Fault Count */
795 	kstat_named_t rlec;	/* Receive Length Error Count */
796 	kstat_named_t lxontxc;	/* Link XON Transmitted Count */
797 	kstat_named_t lxonrxc;	/* Link XON Received Count */
798 	kstat_named_t lxofftxc;	/* Link XOFF Transmitted Count */
799 	kstat_named_t lxoffrxc;	/* Link XOFF Received Count */
800 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
801 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
802 	kstat_named_t rnbc;	/* Receive No Buffers Count */
803 	kstat_named_t ruc;	/* Receive Undersize Count */
804 	kstat_named_t rfc;	/* Receive Frag Count */
805 	kstat_named_t roc;	/* Receive Oversize Count */
806 	kstat_named_t rjc;	/* Receive Jabber Count */
807 	kstat_named_t tor;	/* Total Octets Recvd Count */
808 	kstat_named_t tot;	/* Total Octets Xmitted Count */
809 	kstat_named_t tpr;	/* Total Packets Received */
810 	kstat_named_t tpt;	/* Total Packets Xmitted */
811 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
812 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
813 	kstat_named_t lroc;	/* LRO Packets Received Count */
814 } ixgbe_stat_t;
815 
816 /*
817  * Function prototypes in ixgbe_buf.c
818  */
819 int ixgbe_alloc_dma(ixgbe_t *);
820 void ixgbe_free_dma(ixgbe_t *);
821 void ixgbe_set_fma_flags(int);
822 void ixgbe_free_dma_buffer(dma_buffer_t *);
823 int ixgbe_alloc_rx_ring_data(ixgbe_rx_ring_t *rx_ring);
824 void ixgbe_free_rx_ring_data(ixgbe_rx_data_t *rx_data);
825 
826 /*
827  * Function prototypes in ixgbe_main.c
828  */
829 int ixgbe_start(ixgbe_t *, boolean_t);
830 void ixgbe_stop(ixgbe_t *, boolean_t);
831 int ixgbe_driver_setup_link(ixgbe_t *, boolean_t);
832 int ixgbe_multicst_add(ixgbe_t *, const uint8_t *);
833 int ixgbe_multicst_remove(ixgbe_t *, const uint8_t *);
834 enum ioc_reply ixgbe_loopback_ioctl(ixgbe_t *, struct iocblk *, mblk_t *);
835 
836 void ixgbe_enable_watchdog_timer(ixgbe_t *);
837 void ixgbe_disable_watchdog_timer(ixgbe_t *);
838 int ixgbe_atomic_reserve(uint32_t *, uint32_t);
839 
840 int ixgbe_check_acc_handle(ddi_acc_handle_t handle);
841 int ixgbe_check_dma_handle(ddi_dma_handle_t handle);
842 void ixgbe_fm_ereport(ixgbe_t *, char *);
843 
844 void ixgbe_fill_ring(void *, mac_ring_type_t, const int, const int,
845     mac_ring_info_t *, mac_ring_handle_t);
846 void ixgbe_fill_group(void *arg, mac_ring_type_t, const int,
847     mac_group_info_t *, mac_group_handle_t);
848 int ixgbe_rx_ring_intr_enable(mac_intr_handle_t);
849 int ixgbe_rx_ring_intr_disable(mac_intr_handle_t);
850 
851 /*
852  * Function prototypes in ixgbe_gld.c
853  */
854 int ixgbe_m_start(void *);
855 void ixgbe_m_stop(void *);
856 int ixgbe_m_promisc(void *, boolean_t);
857 int ixgbe_m_multicst(void *, boolean_t, const uint8_t *);
858 void ixgbe_m_resources(void *);
859 void ixgbe_m_ioctl(void *, queue_t *, mblk_t *);
860 boolean_t ixgbe_m_getcapab(void *, mac_capab_t, void *);
861 int ixgbe_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
862 int ixgbe_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *);
863 void ixgbe_m_propinfo(void *, const char *, mac_prop_id_t,
864     mac_prop_info_handle_t);
865 int ixgbe_set_priv_prop(ixgbe_t *, const char *, uint_t, const void *);
866 int ixgbe_get_priv_prop(ixgbe_t *, const char *, uint_t, void *);
867 boolean_t ixgbe_param_locked(mac_prop_id_t);
868 
869 /*
870  * Function prototypes in ixgbe_rx.c
871  */
872 mblk_t *ixgbe_ring_rx(ixgbe_rx_ring_t *, int);
873 void ixgbe_rx_recycle(caddr_t arg);
874 mblk_t *ixgbe_ring_rx_poll(void *, int);
875 
876 /*
877  * Function prototypes in ixgbe_tx.c
878  */
879 mblk_t *ixgbe_ring_tx(void *, mblk_t *);
880 void ixgbe_free_tcb(tx_control_block_t *);
881 void ixgbe_put_free_list(ixgbe_tx_ring_t *, link_list_t *);
882 uint32_t ixgbe_tx_recycle_legacy(ixgbe_tx_ring_t *);
883 uint32_t ixgbe_tx_recycle_head_wb(ixgbe_tx_ring_t *);
884 
885 /*
886  * Function prototypes in ixgbe_log.c
887  */
888 void ixgbe_notice(void *, const char *, ...);
889 void ixgbe_log(void *, const char *, ...);
890 void ixgbe_error(void *, const char *, ...);
891 
892 /*
893  * Function prototypes in ixgbe_stat.c
894  */
895 int ixgbe_init_stats(ixgbe_t *);
896 int ixgbe_m_stat(void *, uint_t, uint64_t *);
897 int ixgbe_rx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
898 int ixgbe_tx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
899 
900 #ifdef __cplusplus
901 }
902 #endif
903 
904 #endif /* _IXGBE_SW_H */
905