xref: /illumos-gate/usr/src/uts/common/io/ixgbe/ixgbe_sw.h (revision e2f4f3dab373b605b62ac175115f264a5c417eb6)
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  * Copyright (c) 2013 Saso Kiselkov. All rights reserved.
29  * Copyright 2016 OmniTI Computer Consulting, Inc. All rights reserved.
30  */
31 
32 #ifndef	_IXGBE_SW_H
33 #define	_IXGBE_SW_H
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
39 #include <sys/types.h>
40 #include <sys/conf.h>
41 #include <sys/debug.h>
42 #include <sys/stropts.h>
43 #include <sys/stream.h>
44 #include <sys/strsun.h>
45 #include <sys/strlog.h>
46 #include <sys/kmem.h>
47 #include <sys/stat.h>
48 #include <sys/kstat.h>
49 #include <sys/modctl.h>
50 #include <sys/errno.h>
51 #include <sys/dlpi.h>
52 #include <sys/mac_provider.h>
53 #include <sys/mac_ether.h>
54 #include <sys/vlan.h>
55 #include <sys/ddi.h>
56 #include <sys/sunddi.h>
57 #include <sys/pci.h>
58 #include <sys/pcie.h>
59 #include <sys/sdt.h>
60 #include <sys/ethernet.h>
61 #include <sys/pattr.h>
62 #include <sys/strsubr.h>
63 #include <sys/netlb.h>
64 #include <sys/random.h>
65 #include <inet/common.h>
66 #include <inet/tcp.h>
67 #include <inet/ip.h>
68 #include <inet/mi.h>
69 #include <inet/nd.h>
70 #include <sys/bitmap.h>
71 #include <sys/ddifm.h>
72 #include <sys/fm/protocol.h>
73 #include <sys/fm/util.h>
74 #include <sys/disp.h>
75 #include <sys/fm/io/ddi.h>
76 #include "ixgbe_api.h"
77 
78 #define	MODULE_NAME			"ixgbe"	/* module name */
79 
80 #define	IXGBE_FAILURE			DDI_FAILURE
81 
82 #define	IXGBE_UNKNOWN			0x00
83 #define	IXGBE_INITIALIZED		0x01
84 #define	IXGBE_STARTED			0x02
85 #define	IXGBE_SUSPENDED			0x04
86 #define	IXGBE_STALL			0x08
87 #define	IXGBE_OVERTEMP			0x20
88 #define	IXGBE_INTR_ADJUST		0x40
89 #define	IXGBE_ERROR			0x80
90 
91 #define	MAX_NUM_UNICAST_ADDRESSES 	0x80
92 #define	MAX_NUM_MULTICAST_ADDRESSES 	0x1000
93 #define	IXGBE_INTR_NONE			0
94 #define	IXGBE_INTR_MSIX			1
95 #define	IXGBE_INTR_MSI			2
96 #define	IXGBE_INTR_LEGACY		3
97 
98 #define	IXGBE_POLL_NULL			-1
99 
100 #define	MAX_COOKIE			18
101 #define	MIN_NUM_TX_DESC			2
102 
103 #define	IXGBE_TX_DESC_LIMIT		32	/* tx desc limitation	*/
104 
105 #define	IXGBE_ADAPTER_REGSET		1	/* map adapter registers */
106 
107 #define	IXGBE_RX_STOPPED		0x1
108 
109 #define	IXGBE_PKG_BUF_16k		16384
110 
111 /*
112  * MAX_xx_QUEUE_NUM and MAX_INTR_VECTOR values need to be the maximum of all
113  * supported silicon types.
114  */
115 #define	MAX_TX_QUEUE_NUM		128
116 #define	MAX_RX_QUEUE_NUM		128
117 #define	MAX_INTR_VECTOR			64
118 
119 /*
120  * Maximum values for user configurable parameters
121  */
122 #define	MAX_TX_RING_SIZE		4096
123 #define	MAX_RX_RING_SIZE		4096
124 
125 #define	MAX_RX_LIMIT_PER_INTR		4096
126 
127 #define	MAX_RX_COPY_THRESHOLD		9216
128 #define	MAX_TX_COPY_THRESHOLD		9216
129 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
130 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
131 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
132 
133 /*
134  * Minimum values for user configurable parameters
135  */
136 #define	MIN_TX_RING_SIZE		64
137 #define	MIN_RX_RING_SIZE		64
138 
139 #define	MIN_MTU				ETHERMIN
140 #define	MIN_RX_LIMIT_PER_INTR		16
141 #define	MIN_TX_COPY_THRESHOLD		0
142 #define	MIN_RX_COPY_THRESHOLD		0
143 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
144 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
145 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
146 
147 /*
148  * Default values for user configurable parameters
149  */
150 #define	DEFAULT_TX_RING_SIZE		1024
151 #define	DEFAULT_RX_RING_SIZE		1024
152 
153 #define	DEFAULT_MTU			ETHERMTU
154 #define	DEFAULT_RX_LIMIT_PER_INTR	256
155 #define	DEFAULT_RX_COPY_THRESHOLD	128
156 #define	DEFAULT_TX_COPY_THRESHOLD	512
157 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
158 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
159 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
160 #define	DEFAULT_FCRTH			0x20000
161 #define	DEFAULT_FCRTL			0x10000
162 #define	DEFAULT_FCPAUSE			0xFFFF
163 
164 #define	DEFAULT_TX_HCKSUM_ENABLE	B_TRUE
165 #define	DEFAULT_RX_HCKSUM_ENABLE	B_TRUE
166 #define	DEFAULT_LSO_ENABLE		B_TRUE
167 #define	DEFAULT_LRO_ENABLE		B_FALSE
168 #define	DEFAULT_MR_ENABLE		B_TRUE
169 #define	DEFAULT_TX_HEAD_WB_ENABLE	B_TRUE
170 #define	DEFAULT_RELAX_ORDER_ENABLE	B_TRUE
171 #define	DEFAULT_ALLOW_UNSUPPORTED_SFP	B_FALSE
172 
173 #define	IXGBE_LSO_MAXLEN		65535
174 
175 #define	TX_DRAIN_TIME			200
176 #define	RX_DRAIN_TIME			200
177 
178 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
179 #define	MAX_LINK_DOWN_TIMEOUT		8	/* 8 seconds */
180 
181 #define	IXGBE_CYCLIC_PERIOD		(1000000000)	/* 1s */
182 
183 /*
184  * Extra register bit masks for 82598
185  */
186 #define	IXGBE_PCS1GANA_FDC	0x20
187 #define	IXGBE_PCS1GANLP_LPFD	0x20
188 #define	IXGBE_PCS1GANLP_LPHD	0x40
189 
190 /*
191  * Defined for IP header alignment.
192  */
193 #define	IPHDR_ALIGN_ROOM		2
194 
195 /*
196  * Bit flags for attach_progress
197  */
198 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
199 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
200 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
201 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
202 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
203 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
204 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
205 #define	ATTACH_PROGRESS_INIT		0x0080	/* Device initialized */
206 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
207 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
208 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
209 #define	ATTACH_PROGRESS_FM_INIT		0x2000	/* FMA initialized */
210 #define	ATTACH_PROGRESS_SFP_TASKQ	0x4000	/* SFP taskq created */
211 #define	ATTACH_PROGRESS_LINK_TIMER	0x8000	/* link check timer */
212 #define	ATTACH_PROGRESS_OVERTEMP_TASKQ	0x10000 /* Over-temp taskq created */
213 #define	ATTACH_PROGRESS_PHY_TASKQ	0x20000 /* Ext. PHY taskq created */
214 
215 #define	PROP_DEFAULT_MTU		"default_mtu"
216 #define	PROP_FLOW_CONTROL		"flow_control"
217 #define	PROP_TX_QUEUE_NUM		"tx_queue_number"
218 #define	PROP_TX_RING_SIZE		"tx_ring_size"
219 #define	PROP_RX_QUEUE_NUM		"rx_queue_number"
220 #define	PROP_RX_RING_SIZE		"rx_ring_size"
221 #define	PROP_RX_GROUP_NUM		"rx_group_number"
222 
223 #define	PROP_INTR_FORCE			"intr_force"
224 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
225 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
226 #define	PROP_LSO_ENABLE			"lso_enable"
227 #define	PROP_LRO_ENABLE			"lro_enable"
228 #define	PROP_MR_ENABLE			"mr_enable"
229 #define	PROP_RELAX_ORDER_ENABLE		"relax_order_enable"
230 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
231 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
232 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
233 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
234 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
235 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
236 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
237 #define	PROP_INTR_THROTTLING		"intr_throttling"
238 #define	PROP_FM_CAPABLE			"fm_capable"
239 #define	PROP_ALLOW_UNSUPPORTED_SFP	"allow_unsupported_sfp"
240 
241 #define	IXGBE_LB_NONE			0
242 #define	IXGBE_LB_EXTERNAL		1
243 #define	IXGBE_LB_INTERNAL_MAC		2
244 #define	IXGBE_LB_INTERNAL_PHY		3
245 #define	IXGBE_LB_INTERNAL_SERDES	4
246 
247 /*
248  * capability/feature flags
249  * Flags named _CAPABLE are set when the NIC hardware is capable of the feature.
250  * Separately, the flag named _ENABLED is set when the feature is enabled.
251  */
252 #define	IXGBE_FLAG_DCA_ENABLED		(u32)(1)
253 #define	IXGBE_FLAG_DCA_CAPABLE		(u32)(1 << 1)
254 #define	IXGBE_FLAG_DCB_ENABLED		(u32)(1 << 2)
255 #define	IXGBE_FLAG_DCB_CAPABLE		(u32)(1 << 4)
256 #define	IXGBE_FLAG_RSS_ENABLED		(u32)(1 << 4)
257 #define	IXGBE_FLAG_RSS_CAPABLE		(u32)(1 << 5)
258 #define	IXGBE_FLAG_VMDQ_CAPABLE		(u32)(1 << 6)
259 #define	IXGBE_FLAG_VMDQ_ENABLED		(u32)(1 << 7)
260 #define	IXGBE_FLAG_FAN_FAIL_CAPABLE	(u32)(1 << 8)
261 #define	IXGBE_FLAG_RSC_CAPABLE		(u32)(1 << 9)
262 #define	IXGBE_FLAG_SFP_PLUG_CAPABLE	(u32)(1 << 10)
263 #define	IXGBE_FLAG_TEMP_SENSOR_CAPABLE	(u32)(1 << 11)
264 
265 /*
266  * Classification mode
267  */
268 #define	IXGBE_CLASSIFY_NONE		0
269 #define	IXGBE_CLASSIFY_RSS		1
270 #define	IXGBE_CLASSIFY_VMDQ		2
271 #define	IXGBE_CLASSIFY_VMDQ_RSS		3
272 
273 /* adapter-specific info for each supported device type */
274 typedef struct adapter_info {
275 	uint32_t	max_rx_que_num; /* maximum number of rx queues */
276 	uint32_t	min_rx_que_num; /* minimum number of rx queues */
277 	uint32_t	def_rx_que_num; /* default number of rx queues */
278 	uint32_t	max_rx_grp_num; /* maximum number of rx groups */
279 	uint32_t	min_rx_grp_num; /* minimum number of rx groups */
280 	uint32_t	def_rx_grp_num; /* default number of rx groups */
281 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
282 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
283 	uint32_t	def_tx_que_num;	/* default number of tx queues */
284 	uint32_t	max_mtu;	/* maximum MTU size */
285 	/*
286 	 * Interrupt throttling is in unit of 256 nsec
287 	 */
288 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
289 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
290 	uint32_t	def_intr_throttle; /* default interrupt throttle */
291 
292 	uint32_t	max_msix_vect;	/* maximum total msix vectors */
293 	uint32_t	max_ring_vect;	/* maximum number of ring vectors */
294 	uint32_t	max_other_vect;	/* maximum number of other vectors */
295 	uint32_t	other_intr;	/* "other" interrupt types handled */
296 	uint32_t	other_gpie;	/* "other" interrupt types enabling */
297 	uint32_t	flags;		/* capability flags */
298 } adapter_info_t;
299 
300 /* bits representing all interrupt types other than tx & rx */
301 #define	IXGBE_OTHER_INTR	0x3ff00000
302 #define	IXGBE_82599_OTHER_INTR	0x86100000
303 
304 enum ioc_reply {
305 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
306 	IOC_DONE, 	/* OK, reply sent */
307 	IOC_ACK,	/* OK, just send ACK */
308 	IOC_REPLY	/* OK, just send reply */
309 };
310 
311 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
312 				    0, 0, (flag)))
313 
314 /*
315  * Defined for ring index operations
316  * ASSERT(index < limit)
317  * ASSERT(step < limit)
318  * ASSERT(index1 < limit)
319  * ASSERT(index2 < limit)
320  */
321 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
322 	(index) + (step) : (index) + (step) - (limit))
323 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
324 	(index) - (step) : (index) + (limit) - (step))
325 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
326 	(index2) - (index1) : (index2) + (limit) - (index1))
327 
328 #define	LINK_LIST_INIT(_LH)	\
329 	(_LH)->head = (_LH)->tail = NULL
330 
331 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
332 
333 #define	LIST_POP_HEAD(_LH)	\
334 	(single_link_t *)(_LH)->head; \
335 	{ \
336 		if ((_LH)->head != NULL) { \
337 			(_LH)->head = (_LH)->head->link; \
338 			if ((_LH)->head == NULL) \
339 				(_LH)->tail = NULL; \
340 		} \
341 	}
342 
343 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
344 
345 #define	LIST_PUSH_TAIL(_LH, _E)	\
346 	if ((_LH)->tail != NULL) { \
347 		(_LH)->tail->link = (single_link_t *)(_E); \
348 		(_LH)->tail = (single_link_t *)(_E); \
349 	} else { \
350 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
351 	} \
352 	(_E)->link = NULL;
353 
354 #define	LIST_GET_NEXT(_LH, _E)		\
355 	(((_LH)->tail == (single_link_t *)(_E)) ? \
356 	NULL : ((single_link_t *)(_E))->link)
357 
358 
359 typedef struct single_link {
360 	struct single_link	*link;
361 } single_link_t;
362 
363 typedef struct link_list {
364 	single_link_t		*head;
365 	single_link_t		*tail;
366 } link_list_t;
367 
368 /*
369  * Property lookups
370  */
371 #define	IXGBE_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
372 				    DDI_PROP_DONTPASS, (n))
373 #define	IXGBE_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
374 				    DDI_PROP_DONTPASS, (n), -1)
375 
376 
377 typedef union ixgbe_ether_addr {
378 	struct {
379 		uint32_t	high;
380 		uint32_t	low;
381 	} reg;
382 	struct {
383 		uint8_t		set;
384 		uint8_t		group_index;
385 		uint8_t		addr[ETHERADDRL];
386 	} mac;
387 } ixgbe_ether_addr_t;
388 
389 typedef enum {
390 	USE_NONE,
391 	USE_COPY,
392 	USE_DMA
393 } tx_type_t;
394 
395 typedef struct ixgbe_tx_context {
396 	uint32_t		hcksum_flags;
397 	uint32_t		ip_hdr_len;
398 	uint32_t		mac_hdr_len;
399 	uint32_t		l4_proto;
400 	uint32_t		mss;
401 	uint32_t		l4_hdr_len;
402 	boolean_t		lso_flag;
403 } ixgbe_tx_context_t;
404 
405 /*
406  * Hold address/length of each DMA segment
407  */
408 typedef struct sw_desc {
409 	uint64_t		address;
410 	size_t			length;
411 } sw_desc_t;
412 
413 /*
414  * Handles and addresses of DMA buffer
415  */
416 typedef struct dma_buffer {
417 	caddr_t			address;	/* Virtual address */
418 	uint64_t		dma_address;	/* DMA (Hardware) address */
419 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
420 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
421 	size_t			size;		/* Buffer size */
422 	size_t			len;		/* Data length in the buffer */
423 } dma_buffer_t;
424 
425 /*
426  * Tx Control Block
427  */
428 typedef struct tx_control_block {
429 	single_link_t		link;
430 	uint32_t		last_index; /* last descriptor of the pkt */
431 	uint32_t		frag_num;
432 	uint32_t		desc_num;
433 	mblk_t			*mp;
434 	tx_type_t		tx_type;
435 	ddi_dma_handle_t	tx_dma_handle;
436 	dma_buffer_t		tx_buf;
437 	sw_desc_t		desc[MAX_COOKIE];
438 } tx_control_block_t;
439 
440 /*
441  * RX Control Block
442  */
443 typedef struct rx_control_block {
444 	mblk_t			*mp;
445 	uint32_t		ref_cnt;
446 	dma_buffer_t		rx_buf;
447 	frtn_t			free_rtn;
448 	struct ixgbe_rx_data	*rx_data;
449 	int			lro_next;	/* Index of next rcb */
450 	int			lro_prev;	/* Index of previous rcb */
451 	boolean_t		lro_pkt;	/* Flag for LRO rcb */
452 } rx_control_block_t;
453 
454 /*
455  * Software Data Structure for Tx Ring
456  */
457 typedef struct ixgbe_tx_ring {
458 	uint32_t		index;	/* Ring index */
459 	uint32_t		intr_vector;	/* Interrupt vector index */
460 	uint32_t		vect_bit;	/* vector's bit in register */
461 
462 	/*
463 	 * Mutexes
464 	 */
465 	kmutex_t		tx_lock;
466 	kmutex_t		recycle_lock;
467 	kmutex_t		tcb_head_lock;
468 	kmutex_t		tcb_tail_lock;
469 
470 	/*
471 	 * Tx descriptor ring definitions
472 	 */
473 	dma_buffer_t		tbd_area;
474 	union ixgbe_adv_tx_desc	*tbd_ring;
475 	uint32_t		tbd_head; /* Index of next tbd to recycle */
476 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
477 	uint32_t		tbd_free; /* Number of free tbd */
478 
479 	/*
480 	 * Tx control block list definitions
481 	 */
482 	tx_control_block_t	*tcb_area;
483 	tx_control_block_t	**work_list;
484 	tx_control_block_t	**free_list;
485 	uint32_t		tcb_head; /* Head index of free list */
486 	uint32_t		tcb_tail; /* Tail index of free list */
487 	uint32_t		tcb_free; /* Number of free tcb in free list */
488 
489 	uint32_t		*tbd_head_wb; /* Head write-back */
490 	uint32_t		(*tx_recycle)(struct ixgbe_tx_ring *);
491 
492 	/*
493 	 * s/w context structure for TCP/UDP checksum offload
494 	 * and LSO.
495 	 */
496 	ixgbe_tx_context_t	tx_context;
497 
498 	/*
499 	 * Tx ring settings and status
500 	 */
501 	uint32_t		ring_size; /* Tx descriptor ring size */
502 	uint32_t		free_list_size;	/* Tx free list size */
503 
504 	boolean_t		reschedule;
505 	uint32_t		recycle_fail;
506 	uint32_t		stall_watchdog;
507 
508 #ifdef IXGBE_DEBUG
509 	/*
510 	 * Debug statistics
511 	 */
512 	uint32_t		stat_overload;
513 	uint32_t		stat_fail_no_tbd;
514 	uint32_t		stat_fail_no_tcb;
515 	uint32_t		stat_fail_dma_bind;
516 	uint32_t		stat_reschedule;
517 	uint32_t		stat_break_tbd_limit;
518 	uint32_t		stat_lso_header_fail;
519 #endif
520 	uint64_t		stat_obytes;
521 	uint64_t		stat_opackets;
522 
523 	mac_ring_handle_t	ring_handle;
524 
525 	/*
526 	 * Pointer to the ixgbe struct
527 	 */
528 	struct ixgbe		*ixgbe;
529 } ixgbe_tx_ring_t;
530 
531 /*
532  * Software Receive Ring
533  */
534 typedef struct ixgbe_rx_data {
535 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
536 
537 	/*
538 	 * Rx descriptor ring definitions
539 	 */
540 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
541 	union ixgbe_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
542 	uint32_t		rbd_next;	/* Index of next rx desc */
543 
544 	/*
545 	 * Rx control block list definitions
546 	 */
547 	rx_control_block_t	*rcb_area;
548 	rx_control_block_t	**work_list;	/* Work list of rcbs */
549 	rx_control_block_t	**free_list;	/* Free list of rcbs */
550 	uint32_t		rcb_head;	/* Index of next free rcb */
551 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
552 	uint32_t		rcb_free;	/* Number of free rcbs */
553 
554 	/*
555 	 * Rx sw ring settings and status
556 	 */
557 	uint32_t		ring_size;	/* Rx descriptor ring size */
558 	uint32_t		free_list_size;	/* Rx free list size */
559 
560 	uint32_t		rcb_pending;
561 	uint32_t		flag;
562 
563 	uint32_t		lro_num;	/* Number of rcbs of one LRO */
564 	uint32_t		lro_first;	/* Index of first LRO rcb */
565 
566 	struct ixgbe_rx_ring	*rx_ring;	/* Pointer to rx ring */
567 } ixgbe_rx_data_t;
568 
569 /*
570  * Software Data Structure for Rx Ring
571  */
572 typedef struct ixgbe_rx_ring {
573 	uint32_t		index;		/* Ring index */
574 	uint32_t		group_index;	/* Group index */
575 	uint32_t		hw_index;	/* h/w ring index */
576 	uint32_t		intr_vector;	/* Interrupt vector index */
577 	uint32_t		vect_bit;	/* vector's bit in register */
578 
579 	ixgbe_rx_data_t		*rx_data;	/* Rx software ring */
580 
581 	kmutex_t		rx_lock;	/* Rx access lock */
582 
583 #ifdef IXGBE_DEBUG
584 	/*
585 	 * Debug statistics
586 	 */
587 	uint32_t		stat_frame_error;
588 	uint32_t		stat_cksum_error;
589 	uint32_t		stat_exceed_pkt;
590 #endif
591 	uint64_t		stat_rbytes;
592 	uint64_t		stat_ipackets;
593 
594 	mac_ring_handle_t	ring_handle;
595 	uint64_t		ring_gen_num;
596 
597 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
598 } ixgbe_rx_ring_t;
599 /*
600  * Software Receive Ring Group
601  */
602 typedef struct ixgbe_rx_group {
603 	uint32_t		index;		/* Group index */
604 	mac_group_handle_t	group_handle;   /* call back group handle */
605 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
606 } ixgbe_rx_group_t;
607 
608 /*
609  * structure to map interrupt cleanup to msi-x vector
610  */
611 typedef struct ixgbe_intr_vector {
612 	struct ixgbe *ixgbe;	/* point to my adapter */
613 	ulong_t rx_map[BT_BITOUL(MAX_RX_QUEUE_NUM)];	/* bitmap of rx rings */
614 	int	rxr_cnt;	/* count rx rings */
615 	ulong_t tx_map[BT_BITOUL(MAX_TX_QUEUE_NUM)];	/* bitmap of tx rings */
616 	int	txr_cnt;	/* count tx rings */
617 	ulong_t other_map[BT_BITOUL(2)];		/* bitmap of other */
618 	int	other_cnt;	/* count other interrupt */
619 } ixgbe_intr_vector_t;
620 
621 /*
622  * Software adapter state
623  */
624 typedef struct ixgbe {
625 	int 			instance;
626 	mac_handle_t		mac_hdl;
627 	dev_info_t		*dip;
628 	struct ixgbe_hw		hw;
629 	struct ixgbe_osdep	osdep;
630 
631 	adapter_info_t		*capab;	/* adapter hardware capabilities */
632 	ddi_taskq_t		*sfp_taskq;	/* sfp-change taskq */
633 	ddi_taskq_t		*overtemp_taskq; /* overtemp taskq */
634 	ddi_taskq_t		*phy_taskq;	/* external PHY taskq */
635 	uint32_t		eims;		/* interrupt mask setting */
636 	uint32_t		eimc;		/* interrupt mask clear */
637 	uint32_t		eicr;		/* interrupt cause reg */
638 
639 	uint32_t		ixgbe_state;
640 	link_state_t		link_state;
641 	uint32_t		link_speed;
642 	uint32_t		link_duplex;
643 
644 	uint32_t		reset_count;
645 	uint32_t		attach_progress;
646 	uint32_t		loopback_mode;
647 	uint32_t		default_mtu;
648 	uint32_t		max_frame_size;
649 	ixgbe_link_speed	speeds_supported;
650 
651 	uint32_t		rcb_pending;
652 
653 	/*
654 	 * Each msi-x vector: map vector to interrupt cleanup
655 	 */
656 	ixgbe_intr_vector_t	vect_map[MAX_INTR_VECTOR];
657 
658 	/*
659 	 * Receive Rings
660 	 */
661 	ixgbe_rx_ring_t		*rx_rings;	/* Array of rx rings */
662 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
663 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
664 	uint32_t		rx_buf_size;	/* Rx buffer size */
665 	boolean_t		lro_enable;	/* Large Receive Offload */
666 	uint64_t		lro_pkt_count;	/* LRO packet count */
667 	/*
668 	 * Receive Groups
669 	 */
670 	ixgbe_rx_group_t	*rx_groups;	/* Array of rx groups */
671 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
672 
673 	/*
674 	 * Transmit Rings
675 	 */
676 	ixgbe_tx_ring_t		*tx_rings;	/* Array of tx rings */
677 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
678 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
679 	uint32_t		tx_buf_size;	/* Tx buffer size */
680 
681 	boolean_t		tx_ring_init;
682 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
683 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
684 	boolean_t 		lso_enable; 	/* Large Segment Offload */
685 	boolean_t 		mr_enable; 	/* Multiple Tx and Rx Ring */
686 	boolean_t		relax_order_enable; /* Relax Order */
687 	uint32_t		classify_mode;	/* Classification mode */
688 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
689 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
690 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
691 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
692 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
693 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
694 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
695 	uint32_t		intr_throttling[MAX_INTR_VECTOR];
696 	uint32_t		intr_force;
697 	int			fm_capabilities; /* FMA capabilities */
698 
699 	int			intr_type;
700 	int			intr_cnt;
701 	uint32_t		intr_cnt_max;
702 	uint32_t		intr_cnt_min;
703 	int			intr_cap;
704 	size_t			intr_size;
705 	uint_t			intr_pri;
706 	ddi_intr_handle_t	*htable;
707 	uint32_t		eims_mask;
708 	ddi_cb_handle_t		cb_hdl;		/* Interrupt callback handle */
709 
710 	kmutex_t		gen_lock; /* General lock for device access */
711 	kmutex_t		watchdog_lock;
712 	kmutex_t		rx_pending_lock;
713 
714 	boolean_t		watchdog_enable;
715 	boolean_t		watchdog_start;
716 	timeout_id_t		watchdog_tid;
717 
718 	boolean_t		unicst_init;
719 	uint32_t		unicst_avail;
720 	uint32_t		unicst_total;
721 	ixgbe_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
722 	uint32_t		mcast_count;
723 	struct ether_addr	mcast_table[MAX_NUM_MULTICAST_ADDRESSES];
724 
725 	ulong_t			sys_page_size;
726 
727 	boolean_t		link_check_complete;
728 	hrtime_t		link_check_hrtime;
729 	ddi_periodic_t		periodic_id; /* for link check timer func */
730 
731 	/*
732 	 * Kstat definitions
733 	 */
734 	kstat_t			*ixgbe_ks;
735 
736 	uint32_t		param_en_10000fdx_cap:1,
737 				param_en_5000fdx_cap:1,
738 				param_en_2500fdx_cap:1,
739 				param_en_1000fdx_cap:1,
740 				param_en_100fdx_cap:1,
741 				param_adv_10000fdx_cap:1,
742 				param_adv_5000fdx_cap:1,
743 				param_adv_2500fdx_cap:1,
744 				param_adv_1000fdx_cap:1,
745 				param_adv_100fdx_cap:1,
746 				param_pause_cap:1,
747 				param_asym_pause_cap:1,
748 				param_rem_fault:1,
749 				param_adv_autoneg_cap:1,
750 				param_adv_pause_cap:1,
751 				param_adv_asym_pause_cap:1,
752 				param_adv_rem_fault:1,
753 				param_lp_10000fdx_cap:1,
754 				param_lp_5000fdx_cap:1,
755 				param_lp_2500fdx_cap:1,
756 				param_lp_1000fdx_cap:1,
757 				param_lp_100fdx_cap:1,
758 				param_lp_autoneg_cap:1,
759 				param_lp_pause_cap:1,
760 				param_lp_asym_pause_cap:1,
761 				param_lp_rem_fault:1,
762 				param_pad_to_32:6;
763 } ixgbe_t;
764 
765 typedef struct ixgbe_stat {
766 	kstat_named_t link_speed;	/* Link Speed */
767 
768 	kstat_named_t reset_count;	/* Reset Count */
769 
770 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
771 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
772 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
773 
774 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
775 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
776 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
777 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
778 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
779 
780 	kstat_named_t gprc;	/* Good Packets Received Count */
781 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
782 	kstat_named_t gor;	/* Good Octets Received Count */
783 	kstat_named_t got;	/* Good Octets Xmitd Count */
784 	kstat_named_t prc64;	/* Packets Received - 64b */
785 	kstat_named_t prc127;	/* Packets Received - 65-127b */
786 	kstat_named_t prc255;	/* Packets Received - 127-255b */
787 	kstat_named_t prc511;	/* Packets Received - 256-511b */
788 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
789 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
790 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
791 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
792 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
793 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
794 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
795 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
796 	kstat_named_t qprc[16];	/* Queue Packets Received Count */
797 	kstat_named_t qptc[16];	/* Queue Packets Transmitted Count */
798 	kstat_named_t qbrc[16];	/* Queue Bytes Received Count */
799 	kstat_named_t qbtc[16];	/* Queue Bytes Transmitted Count */
800 
801 	kstat_named_t crcerrs;	/* CRC Error Count */
802 	kstat_named_t illerrc;	/* Illegal Byte Error Count */
803 	kstat_named_t errbc;	/* Error Byte Count */
804 	kstat_named_t mspdc;	/* MAC Short Packet Discard Count */
805 	kstat_named_t mpc;	/* Missed Packets Count */
806 	kstat_named_t mlfc;	/* MAC Local Fault Count */
807 	kstat_named_t mrfc;	/* MAC Remote Fault Count */
808 	kstat_named_t rlec;	/* Receive Length Error Count */
809 	kstat_named_t lxontxc;	/* Link XON Transmitted Count */
810 	kstat_named_t lxonrxc;	/* Link XON Received Count */
811 	kstat_named_t lxofftxc;	/* Link XOFF Transmitted Count */
812 	kstat_named_t lxoffrxc;	/* Link XOFF Received Count */
813 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
814 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
815 	kstat_named_t rnbc;	/* Receive No Buffers Count */
816 	kstat_named_t ruc;	/* Receive Undersize Count */
817 	kstat_named_t rfc;	/* Receive Frag Count */
818 	kstat_named_t roc;	/* Receive Oversize Count */
819 	kstat_named_t rjc;	/* Receive Jabber Count */
820 	kstat_named_t tor;	/* Total Octets Recvd Count */
821 	kstat_named_t tot;	/* Total Octets Xmitted Count */
822 	kstat_named_t tpr;	/* Total Packets Received */
823 	kstat_named_t tpt;	/* Total Packets Xmitted */
824 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
825 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
826 	kstat_named_t lroc;	/* LRO Packets Received Count */
827 } ixgbe_stat_t;
828 
829 /*
830  * Function prototypes in ixgbe_buf.c
831  */
832 int ixgbe_alloc_dma(ixgbe_t *);
833 void ixgbe_free_dma(ixgbe_t *);
834 void ixgbe_set_fma_flags(int);
835 void ixgbe_free_dma_buffer(dma_buffer_t *);
836 int ixgbe_alloc_rx_ring_data(ixgbe_rx_ring_t *rx_ring);
837 void ixgbe_free_rx_ring_data(ixgbe_rx_data_t *rx_data);
838 
839 /*
840  * Function prototypes in ixgbe_main.c
841  */
842 int ixgbe_start(ixgbe_t *, boolean_t);
843 void ixgbe_stop(ixgbe_t *, boolean_t);
844 int ixgbe_driver_setup_link(ixgbe_t *, boolean_t);
845 int ixgbe_multicst_add(ixgbe_t *, const uint8_t *);
846 int ixgbe_multicst_remove(ixgbe_t *, const uint8_t *);
847 enum ioc_reply ixgbe_loopback_ioctl(ixgbe_t *, struct iocblk *, mblk_t *);
848 
849 void ixgbe_enable_watchdog_timer(ixgbe_t *);
850 void ixgbe_disable_watchdog_timer(ixgbe_t *);
851 int ixgbe_atomic_reserve(uint32_t *, uint32_t);
852 
853 int ixgbe_check_acc_handle(ddi_acc_handle_t handle);
854 int ixgbe_check_dma_handle(ddi_dma_handle_t handle);
855 void ixgbe_fm_ereport(ixgbe_t *, char *);
856 
857 void ixgbe_fill_ring(void *, mac_ring_type_t, const int, const int,
858     mac_ring_info_t *, mac_ring_handle_t);
859 void ixgbe_fill_group(void *arg, mac_ring_type_t, const int,
860     mac_group_info_t *, mac_group_handle_t);
861 int ixgbe_rx_ring_intr_enable(mac_intr_handle_t);
862 int ixgbe_rx_ring_intr_disable(mac_intr_handle_t);
863 
864 /*
865  * Function prototypes in ixgbe_gld.c
866  */
867 int ixgbe_m_start(void *);
868 void ixgbe_m_stop(void *);
869 int ixgbe_m_promisc(void *, boolean_t);
870 int ixgbe_m_multicst(void *, boolean_t, const uint8_t *);
871 void ixgbe_m_resources(void *);
872 void ixgbe_m_ioctl(void *, queue_t *, mblk_t *);
873 boolean_t ixgbe_m_getcapab(void *, mac_capab_t, void *);
874 int ixgbe_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
875 int ixgbe_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *);
876 void ixgbe_m_propinfo(void *, const char *, mac_prop_id_t,
877     mac_prop_info_handle_t);
878 int ixgbe_set_priv_prop(ixgbe_t *, const char *, uint_t, const void *);
879 int ixgbe_get_priv_prop(ixgbe_t *, const char *, uint_t, void *);
880 boolean_t ixgbe_param_locked(mac_prop_id_t);
881 
882 /*
883  * Function prototypes in ixgbe_rx.c
884  */
885 mblk_t *ixgbe_ring_rx(ixgbe_rx_ring_t *, int);
886 void ixgbe_rx_recycle(caddr_t arg);
887 mblk_t *ixgbe_ring_rx_poll(void *, int);
888 
889 /*
890  * Function prototypes in ixgbe_tx.c
891  */
892 mblk_t *ixgbe_ring_tx(void *, mblk_t *);
893 void ixgbe_free_tcb(tx_control_block_t *);
894 void ixgbe_put_free_list(ixgbe_tx_ring_t *, link_list_t *);
895 uint32_t ixgbe_tx_recycle_legacy(ixgbe_tx_ring_t *);
896 uint32_t ixgbe_tx_recycle_head_wb(ixgbe_tx_ring_t *);
897 
898 /*
899  * Function prototypes in ixgbe_log.c
900  */
901 void ixgbe_notice(void *, const char *, ...);
902 void ixgbe_log(void *, const char *, ...);
903 void ixgbe_error(void *, const char *, ...);
904 
905 /*
906  * Function prototypes in ixgbe_stat.c
907  */
908 int ixgbe_init_stats(ixgbe_t *);
909 int ixgbe_m_stat(void *, uint_t, uint64_t *);
910 int ixgbe_rx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
911 int ixgbe_tx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
912 
913 #ifdef __cplusplus
914 }
915 #endif
916 
917 #endif /* _IXGBE_SW_H */
918