xref: /illumos-gate/usr/src/uts/common/io/ixgbe/ixgbe_sw.h (revision 84de666e)
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  * Copyright 2019 Joyent, Inc.
31  */
32 
33 #ifndef	_IXGBE_SW_H
34 #define	_IXGBE_SW_H
35 
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39 
40 #include <sys/types.h>
41 #include <sys/conf.h>
42 #include <sys/debug.h>
43 #include <sys/stropts.h>
44 #include <sys/stream.h>
45 #include <sys/strsun.h>
46 #include <sys/strlog.h>
47 #include <sys/kmem.h>
48 #include <sys/stat.h>
49 #include <sys/kstat.h>
50 #include <sys/modctl.h>
51 #include <sys/errno.h>
52 #include <sys/dlpi.h>
53 #include <sys/mac_provider.h>
54 #include <sys/mac_ether.h>
55 #include <sys/vlan.h>
56 #include <sys/ddi.h>
57 #include <sys/sunddi.h>
58 #include <sys/pci.h>
59 #include <sys/pcie.h>
60 #include <sys/sdt.h>
61 #include <sys/ethernet.h>
62 #include <sys/pattr.h>
63 #include <sys/strsubr.h>
64 #include <sys/netlb.h>
65 #include <sys/random.h>
66 #include <inet/common.h>
67 #include <inet/tcp.h>
68 #include <inet/ip.h>
69 #include <inet/mi.h>
70 #include <inet/nd.h>
71 #include <sys/bitmap.h>
72 #include <sys/ddifm.h>
73 #include <sys/fm/protocol.h>
74 #include <sys/fm/util.h>
75 #include <sys/disp.h>
76 #include <sys/fm/io/ddi.h>
77 #include "ixgbe_api.h"
78 
79 #define	MODULE_NAME			"ixgbe"	/* module name */
80 
81 #define	IXGBE_FAILURE			DDI_FAILURE
82 
83 #define	IXGBE_UNKNOWN			0x00
84 #define	IXGBE_INITIALIZED		0x01
85 #define	IXGBE_STARTED			0x02
86 #define	IXGBE_SUSPENDED			0x04
87 #define	IXGBE_STALL			0x08
88 #define	IXGBE_OVERTEMP			0x20
89 #define	IXGBE_INTR_ADJUST		0x40
90 #define	IXGBE_ERROR			0x80
91 
92 #define	MAX_NUM_UNICAST_ADDRESSES	0x80
93 #define	MAX_NUM_MULTICAST_ADDRESSES	0x1000
94 #define	MAX_NUM_VLAN_FILTERS		0x40
95 
96 #define	IXGBE_INTR_NONE			0
97 #define	IXGBE_INTR_MSIX			1
98 #define	IXGBE_INTR_MSI			2
99 #define	IXGBE_INTR_LEGACY		3
100 
101 #define	IXGBE_POLL_NULL			-1
102 
103 #define	MAX_COOKIE			18
104 #define	MIN_NUM_TX_DESC			2
105 
106 #define	IXGBE_TX_DESC_LIMIT		32	/* tx desc limitation	*/
107 
108 #define	IXGBE_ADAPTER_REGSET		1	/* map adapter registers */
109 
110 #define	IXGBE_RX_STOPPED		0x1
111 
112 #define	IXGBE_PKG_BUF_16k		16384
113 
114 /*
115  * MAX_xx_QUEUE_NUM and MAX_INTR_VECTOR values need to be the maximum of all
116  * supported silicon types.
117  */
118 #define	MAX_TX_QUEUE_NUM		128
119 #define	MAX_RX_QUEUE_NUM		128
120 #define	MAX_INTR_VECTOR			64
121 
122 /*
123  * Maximum values for user configurable parameters
124  */
125 #define	MAX_TX_RING_SIZE		4096
126 #define	MAX_RX_RING_SIZE		4096
127 
128 #define	MAX_RX_LIMIT_PER_INTR		4096
129 
130 #define	MAX_RX_COPY_THRESHOLD		9216
131 #define	MAX_TX_COPY_THRESHOLD		9216
132 #define	MAX_TX_RECYCLE_THRESHOLD	DEFAULT_TX_RING_SIZE
133 #define	MAX_TX_OVERLOAD_THRESHOLD	DEFAULT_TX_RING_SIZE
134 #define	MAX_TX_RESCHED_THRESHOLD	DEFAULT_TX_RING_SIZE
135 
136 /*
137  * Minimum values for user configurable parameters
138  */
139 #define	MIN_TX_RING_SIZE		64
140 #define	MIN_RX_RING_SIZE		64
141 
142 #define	MIN_MTU				ETHERMIN
143 #define	MIN_RX_LIMIT_PER_INTR		16
144 #define	MIN_TX_COPY_THRESHOLD		0
145 #define	MIN_RX_COPY_THRESHOLD		0
146 #define	MIN_TX_RECYCLE_THRESHOLD	MIN_NUM_TX_DESC
147 #define	MIN_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
148 #define	MIN_TX_RESCHED_THRESHOLD	MIN_NUM_TX_DESC
149 
150 /*
151  * Default values for user configurable parameters
152  */
153 #define	DEFAULT_TX_RING_SIZE		1024
154 #define	DEFAULT_RX_RING_SIZE		1024
155 
156 #define	DEFAULT_MTU			ETHERMTU
157 #define	DEFAULT_RX_LIMIT_PER_INTR	256
158 #define	DEFAULT_RX_COPY_THRESHOLD	128
159 #define	DEFAULT_TX_COPY_THRESHOLD	512
160 #define	DEFAULT_TX_RECYCLE_THRESHOLD	(MAX_COOKIE + 1)
161 #define	DEFAULT_TX_OVERLOAD_THRESHOLD	MIN_NUM_TX_DESC
162 #define	DEFAULT_TX_RESCHED_THRESHOLD	128
163 #define	DEFAULT_FCRTH			0x20000
164 #define	DEFAULT_FCRTL			0x10000
165 #define	DEFAULT_FCPAUSE			0xFFFF
166 
167 #define	DEFAULT_TX_HCKSUM_ENABLE	B_TRUE
168 #define	DEFAULT_RX_HCKSUM_ENABLE	B_TRUE
169 #define	DEFAULT_LSO_ENABLE		B_TRUE
170 #define	DEFAULT_LRO_ENABLE		B_FALSE
171 #define	DEFAULT_MR_ENABLE		B_TRUE
172 #define	DEFAULT_TX_HEAD_WB_ENABLE	B_TRUE
173 #define	DEFAULT_RELAX_ORDER_ENABLE	B_TRUE
174 #define	DEFAULT_ALLOW_UNSUPPORTED_SFP	B_FALSE
175 
176 #define	IXGBE_LSO_MAXLEN		65535
177 
178 #define	TX_DRAIN_TIME			200
179 #define	RX_DRAIN_TIME			200
180 
181 #define	STALL_WATCHDOG_TIMEOUT		8	/* 8 seconds */
182 #define	MAX_LINK_DOWN_TIMEOUT		8	/* 8 seconds */
183 
184 #define	IXGBE_CYCLIC_PERIOD		(1000000000)	/* 1s */
185 
186 /*
187  * Extra register bit masks for 82598
188  */
189 #define	IXGBE_PCS1GANA_FDC	0x20
190 #define	IXGBE_PCS1GANLP_LPFD	0x20
191 #define	IXGBE_PCS1GANLP_LPHD	0x40
192 
193 /*
194  * Defined for IP header alignment.
195  */
196 #define	IPHDR_ALIGN_ROOM		2
197 
198 /*
199  * Bit flags for attach_progress
200  */
201 #define	ATTACH_PROGRESS_PCI_CONFIG	0x0001	/* PCI config setup */
202 #define	ATTACH_PROGRESS_REGS_MAP	0x0002	/* Registers mapped */
203 #define	ATTACH_PROGRESS_PROPS		0x0004	/* Properties initialized */
204 #define	ATTACH_PROGRESS_ALLOC_INTR	0x0008	/* Interrupts allocated */
205 #define	ATTACH_PROGRESS_ALLOC_RINGS	0x0010	/* Rings allocated */
206 #define	ATTACH_PROGRESS_ADD_INTR	0x0020	/* Intr handlers added */
207 #define	ATTACH_PROGRESS_LOCKS		0x0040	/* Locks initialized */
208 #define	ATTACH_PROGRESS_INIT		0x0080	/* Device initialized */
209 #define	ATTACH_PROGRESS_STATS		0x0200	/* Kstats created */
210 #define	ATTACH_PROGRESS_MAC		0x0800	/* MAC registered */
211 #define	ATTACH_PROGRESS_ENABLE_INTR	0x1000	/* DDI interrupts enabled */
212 #define	ATTACH_PROGRESS_FM_INIT		0x2000	/* FMA initialized */
213 #define	ATTACH_PROGRESS_SFP_TASKQ	0x4000	/* SFP taskq created */
214 #define	ATTACH_PROGRESS_LINK_TIMER	0x8000	/* link check timer */
215 #define	ATTACH_PROGRESS_OVERTEMP_TASKQ	0x10000 /* Over-temp taskq created */
216 #define	ATTACH_PROGRESS_PHY_TASKQ	0x20000 /* Ext. PHY taskq created */
217 
218 #define	PROP_DEFAULT_MTU		"default_mtu"
219 #define	PROP_FLOW_CONTROL		"flow_control"
220 #define	PROP_TX_QUEUE_NUM		"tx_queue_number"
221 #define	PROP_TX_RING_SIZE		"tx_ring_size"
222 #define	PROP_RX_QUEUE_NUM		"rx_queue_number"
223 #define	PROP_RX_RING_SIZE		"rx_ring_size"
224 #define	PROP_RX_GROUP_NUM		"rx_group_number"
225 
226 #define	PROP_INTR_FORCE			"intr_force"
227 #define	PROP_TX_HCKSUM_ENABLE		"tx_hcksum_enable"
228 #define	PROP_RX_HCKSUM_ENABLE		"rx_hcksum_enable"
229 #define	PROP_LSO_ENABLE			"lso_enable"
230 #define	PROP_LRO_ENABLE			"lro_enable"
231 #define	PROP_MR_ENABLE			"mr_enable"
232 #define	PROP_RELAX_ORDER_ENABLE		"relax_order_enable"
233 #define	PROP_TX_HEAD_WB_ENABLE		"tx_head_wb_enable"
234 #define	PROP_TX_COPY_THRESHOLD		"tx_copy_threshold"
235 #define	PROP_TX_RECYCLE_THRESHOLD	"tx_recycle_threshold"
236 #define	PROP_TX_OVERLOAD_THRESHOLD	"tx_overload_threshold"
237 #define	PROP_TX_RESCHED_THRESHOLD	"tx_resched_threshold"
238 #define	PROP_RX_COPY_THRESHOLD		"rx_copy_threshold"
239 #define	PROP_RX_LIMIT_PER_INTR		"rx_limit_per_intr"
240 #define	PROP_INTR_THROTTLING		"intr_throttling"
241 #define	PROP_FM_CAPABLE			"fm_capable"
242 #define	PROP_ALLOW_UNSUPPORTED_SFP	"allow_unsupported_sfp"
243 
244 #define	IXGBE_LB_NONE			0
245 #define	IXGBE_LB_EXTERNAL		1
246 #define	IXGBE_LB_INTERNAL_MAC		2
247 #define	IXGBE_LB_INTERNAL_PHY		3
248 #define	IXGBE_LB_INTERNAL_SERDES	4
249 
250 /*
251  * capability/feature flags
252  * Flags named _CAPABLE are set when the NIC hardware is capable of the feature.
253  * Separately, the flag named _ENABLED is set when the feature is enabled.
254  */
255 #define	IXGBE_FLAG_DCA_ENABLED		(u32)(1)
256 #define	IXGBE_FLAG_DCA_CAPABLE		(u32)(1 << 1)
257 #define	IXGBE_FLAG_DCB_ENABLED		(u32)(1 << 2)
258 #define	IXGBE_FLAG_DCB_CAPABLE		(u32)(1 << 4)
259 #define	IXGBE_FLAG_RSS_ENABLED		(u32)(1 << 4)
260 #define	IXGBE_FLAG_RSS_CAPABLE		(u32)(1 << 5)
261 #define	IXGBE_FLAG_VMDQ_CAPABLE		(u32)(1 << 6)
262 #define	IXGBE_FLAG_VMDQ_ENABLED		(u32)(1 << 7)
263 #define	IXGBE_FLAG_FAN_FAIL_CAPABLE	(u32)(1 << 8)
264 #define	IXGBE_FLAG_RSC_CAPABLE		(u32)(1 << 9)
265 #define	IXGBE_FLAG_SFP_PLUG_CAPABLE	(u32)(1 << 10)
266 #define	IXGBE_FLAG_TEMP_SENSOR_CAPABLE	(u32)(1 << 11)
267 
268 /*
269  * Classification mode
270  */
271 #define	IXGBE_CLASSIFY_NONE		0
272 #define	IXGBE_CLASSIFY_RSS		1
273 #define	IXGBE_CLASSIFY_VMDQ		2
274 #define	IXGBE_CLASSIFY_VMDQ_RSS		3
275 
276 /* adapter-specific info for each supported device type */
277 typedef struct adapter_info {
278 	uint32_t	max_rx_que_num; /* maximum number of rx queues */
279 	uint32_t	min_rx_que_num; /* minimum number of rx queues */
280 	uint32_t	def_rx_que_num; /* default number of rx queues */
281 	uint32_t	max_rx_grp_num; /* maximum number of rx groups */
282 	uint32_t	min_rx_grp_num; /* minimum number of rx groups */
283 	uint32_t	def_rx_grp_num; /* default number of rx groups */
284 	uint32_t	max_tx_que_num;	/* maximum number of tx queues */
285 	uint32_t	min_tx_que_num;	/* minimum number of tx queues */
286 	uint32_t	def_tx_que_num;	/* default number of tx queues */
287 	uint32_t	max_mtu;	/* maximum MTU size */
288 	/*
289 	 * Interrupt throttling is in unit of 256 nsec
290 	 */
291 	uint32_t	max_intr_throttle; /* maximum interrupt throttle */
292 	uint32_t	min_intr_throttle; /* minimum interrupt throttle */
293 	uint32_t	def_intr_throttle; /* default interrupt throttle */
294 
295 	uint32_t	max_msix_vect;	/* maximum total msix vectors */
296 	uint32_t	max_ring_vect;	/* maximum number of ring vectors */
297 	uint32_t	max_other_vect;	/* maximum number of other vectors */
298 	uint32_t	other_intr;	/* "other" interrupt types handled */
299 	uint32_t	other_gpie;	/* "other" interrupt types enabling */
300 	uint32_t	flags;		/* capability flags */
301 } adapter_info_t;
302 
303 /* bits representing all interrupt types other than tx & rx */
304 #define	IXGBE_OTHER_INTR	0x3ff00000
305 #define	IXGBE_82599_OTHER_INTR	0x86100000
306 
307 enum ioc_reply {
308 	IOC_INVAL = -1,	/* bad, NAK with EINVAL */
309 	IOC_DONE,	/* OK, reply sent */
310 	IOC_ACK,	/* OK, just send ACK */
311 	IOC_REPLY	/* OK, just send reply */
312 };
313 
314 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area)->dma_handle, \
315 				    0, 0, (flag)))
316 
317 /*
318  * Defined for ring index operations
319  * ASSERT(index < limit)
320  * ASSERT(step < limit)
321  * ASSERT(index1 < limit)
322  * ASSERT(index2 < limit)
323  */
324 #define	NEXT_INDEX(index, step, limit)	(((index) + (step)) < (limit) ? \
325 	(index) + (step) : (index) + (step) - (limit))
326 #define	PREV_INDEX(index, step, limit)	((index) >= (step) ? \
327 	(index) - (step) : (index) + (limit) - (step))
328 #define	OFFSET(index1, index2, limit)	((index1) <= (index2) ? \
329 	(index2) - (index1) : (index2) + (limit) - (index1))
330 
331 #define	LINK_LIST_INIT(_LH)	\
332 	(_LH)->head = (_LH)->tail = NULL
333 
334 #define	LIST_GET_HEAD(_LH)	((single_link_t *)((_LH)->head))
335 
336 #define	LIST_POP_HEAD(_LH)	\
337 	(single_link_t *)(_LH)->head; \
338 	{ \
339 		if ((_LH)->head != NULL) { \
340 			(_LH)->head = (_LH)->head->link; \
341 			if ((_LH)->head == NULL) \
342 				(_LH)->tail = NULL; \
343 		} \
344 	}
345 
346 #define	LIST_GET_TAIL(_LH)	((single_link_t *)((_LH)->tail))
347 
348 #define	LIST_PUSH_TAIL(_LH, _E)	\
349 	if ((_LH)->tail != NULL) { \
350 		(_LH)->tail->link = (single_link_t *)(_E); \
351 		(_LH)->tail = (single_link_t *)(_E); \
352 	} else { \
353 		(_LH)->head = (_LH)->tail = (single_link_t *)(_E); \
354 	} \
355 	(_E)->link = NULL;
356 
357 #define	LIST_GET_NEXT(_LH, _E)		\
358 	(((_LH)->tail == (single_link_t *)(_E)) ? \
359 	NULL : ((single_link_t *)(_E))->link)
360 
361 
362 typedef struct single_link {
363 	struct single_link	*link;
364 } single_link_t;
365 
366 typedef struct link_list {
367 	single_link_t		*head;
368 	single_link_t		*tail;
369 } link_list_t;
370 
371 /*
372  * Property lookups
373  */
374 #define	IXGBE_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d), \
375 				    DDI_PROP_DONTPASS, (n))
376 #define	IXGBE_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d), \
377 				    DDI_PROP_DONTPASS, (n), -1)
378 
379 
380 typedef union ixgbe_ether_addr {
381 	struct {
382 		uint32_t	high;
383 		uint32_t	low;
384 	} reg;
385 	struct {
386 		uint8_t		set;
387 		uint8_t		group_index;
388 		uint8_t		addr[ETHERADDRL];
389 	} mac;
390 } ixgbe_ether_addr_t;
391 
392 /*
393  * The list of VLANs an Rx group will accept.
394  */
395 typedef struct ixgbe_vlan {
396 	list_node_t		ixvl_link;
397 	uint16_t		ixvl_vid;   /* The VLAN ID */
398 	uint_t			ixvl_refs;  /* Number of users of this VLAN */
399 } ixgbe_vlan_t;
400 
401 typedef enum {
402 	USE_NONE,
403 	USE_COPY,
404 	USE_DMA
405 } tx_type_t;
406 
407 typedef struct ixgbe_tx_context {
408 	uint32_t		hcksum_flags;
409 	uint32_t		ip_hdr_len;
410 	uint32_t		mac_hdr_len;
411 	uint32_t		l4_proto;
412 	uint32_t		mss;
413 	uint32_t		l4_hdr_len;
414 	boolean_t		lso_flag;
415 } ixgbe_tx_context_t;
416 
417 /*
418  * Hold address/length of each DMA segment
419  */
420 typedef struct sw_desc {
421 	uint64_t		address;
422 	size_t			length;
423 } sw_desc_t;
424 
425 /*
426  * Handles and addresses of DMA buffer
427  */
428 typedef struct dma_buffer {
429 	caddr_t			address;	/* Virtual address */
430 	uint64_t		dma_address;	/* DMA (Hardware) address */
431 	ddi_acc_handle_t	acc_handle;	/* Data access handle */
432 	ddi_dma_handle_t	dma_handle;	/* DMA handle */
433 	size_t			size;		/* Buffer size */
434 	size_t			len;		/* Data length in the buffer */
435 } dma_buffer_t;
436 
437 /*
438  * Tx Control Block
439  */
440 typedef struct tx_control_block {
441 	single_link_t		link;
442 	uint32_t		last_index; /* last descriptor of the pkt */
443 	uint32_t		frag_num;
444 	uint32_t		desc_num;
445 	mblk_t			*mp;
446 	tx_type_t		tx_type;
447 	ddi_dma_handle_t	tx_dma_handle;
448 	dma_buffer_t		tx_buf;
449 	sw_desc_t		desc[MAX_COOKIE];
450 } tx_control_block_t;
451 
452 /*
453  * RX Control Block
454  */
455 typedef struct rx_control_block {
456 	mblk_t			*mp;
457 	uint32_t		ref_cnt;
458 	dma_buffer_t		rx_buf;
459 	frtn_t			free_rtn;
460 	struct ixgbe_rx_data	*rx_data;
461 	int			lro_next;	/* Index of next rcb */
462 	int			lro_prev;	/* Index of previous rcb */
463 	boolean_t		lro_pkt;	/* Flag for LRO rcb */
464 } rx_control_block_t;
465 
466 /*
467  * Software Data Structure for Tx Ring
468  */
469 typedef struct ixgbe_tx_ring {
470 	uint32_t		index;	/* Ring index */
471 	uint32_t		intr_vector;	/* Interrupt vector index */
472 	uint32_t		vect_bit;	/* vector's bit in register */
473 
474 	/*
475 	 * Mutexes
476 	 */
477 	kmutex_t		tx_lock;
478 	kmutex_t		recycle_lock;
479 	kmutex_t		tcb_head_lock;
480 	kmutex_t		tcb_tail_lock;
481 
482 	/*
483 	 * Tx descriptor ring definitions
484 	 */
485 	dma_buffer_t		tbd_area;
486 	union ixgbe_adv_tx_desc	*tbd_ring;
487 	uint32_t		tbd_head; /* Index of next tbd to recycle */
488 	uint32_t		tbd_tail; /* Index of next tbd to transmit */
489 	uint32_t		tbd_free; /* Number of free tbd */
490 
491 	/*
492 	 * Tx control block list definitions
493 	 */
494 	tx_control_block_t	*tcb_area;
495 	tx_control_block_t	**work_list;
496 	tx_control_block_t	**free_list;
497 	uint32_t		tcb_head; /* Head index of free list */
498 	uint32_t		tcb_tail; /* Tail index of free list */
499 	uint32_t		tcb_free; /* Number of free tcb in free list */
500 
501 	uint32_t		*tbd_head_wb; /* Head write-back */
502 	uint32_t		(*tx_recycle)(struct ixgbe_tx_ring *);
503 
504 	/*
505 	 * s/w context structure for TCP/UDP checksum offload
506 	 * and LSO.
507 	 */
508 	ixgbe_tx_context_t	tx_context;
509 
510 	/*
511 	 * Tx ring settings and status
512 	 */
513 	uint32_t		ring_size; /* Tx descriptor ring size */
514 	uint32_t		free_list_size;	/* Tx free list size */
515 
516 	boolean_t		reschedule;
517 	uint32_t		recycle_fail;
518 	uint32_t		stall_watchdog;
519 
520 	uint32_t		stat_overload;
521 	uint32_t		stat_fail_no_tbd;
522 	uint32_t		stat_fail_no_tcb;
523 	uint32_t		stat_fail_dma_bind;
524 	uint32_t		stat_reschedule;
525 	uint32_t		stat_break_tbd_limit;
526 	uint32_t		stat_lso_header_fail;
527 
528 	uint64_t		stat_obytes;
529 	uint64_t		stat_opackets;
530 
531 	mac_ring_handle_t	ring_handle;
532 
533 	/*
534 	 * Pointer to the ixgbe struct
535 	 */
536 	struct ixgbe		*ixgbe;
537 } ixgbe_tx_ring_t;
538 
539 /*
540  * Software Receive Ring
541  */
542 typedef struct ixgbe_rx_data {
543 	kmutex_t		recycle_lock;	/* Recycle lock, for rcb_tail */
544 
545 	/*
546 	 * Rx descriptor ring definitions
547 	 */
548 	dma_buffer_t		rbd_area;	/* DMA buffer of rx desc ring */
549 	union ixgbe_adv_rx_desc	*rbd_ring;	/* Rx desc ring */
550 	uint32_t		rbd_next;	/* Index of next rx desc */
551 
552 	/*
553 	 * Rx control block list definitions
554 	 */
555 	rx_control_block_t	*rcb_area;
556 	rx_control_block_t	**work_list;	/* Work list of rcbs */
557 	rx_control_block_t	**free_list;	/* Free list of rcbs */
558 	uint32_t		rcb_head;	/* Index of next free rcb */
559 	uint32_t		rcb_tail;	/* Index to put recycled rcb */
560 	uint32_t		rcb_free;	/* Number of free rcbs */
561 
562 	/*
563 	 * Rx sw ring settings and status
564 	 */
565 	uint32_t		ring_size;	/* Rx descriptor ring size */
566 	uint32_t		free_list_size;	/* Rx free list size */
567 
568 	uint32_t		rcb_pending;
569 	uint32_t		flag;
570 
571 	uint32_t		lro_num;	/* Number of rcbs of one LRO */
572 	uint32_t		lro_first;	/* Index of first LRO rcb */
573 
574 	struct ixgbe_rx_ring	*rx_ring;	/* Pointer to rx ring */
575 } ixgbe_rx_data_t;
576 
577 /*
578  * Software Data Structure for Rx Ring
579  */
580 typedef struct ixgbe_rx_ring {
581 	uint32_t		index;		/* Ring index */
582 	uint32_t		group_index;	/* Group index */
583 	uint32_t		hw_index;	/* h/w ring index */
584 	uint32_t		intr_vector;	/* Interrupt vector index */
585 	uint32_t		vect_bit;	/* vector's bit in register */
586 
587 	ixgbe_rx_data_t		*rx_data;	/* Rx software ring */
588 
589 	kmutex_t		rx_lock;	/* Rx access lock */
590 
591 	uint32_t		stat_frame_error;
592 	uint32_t		stat_cksum_error;
593 	uint32_t		stat_exceed_pkt;
594 
595 	uint64_t		stat_rbytes;
596 	uint64_t		stat_ipackets;
597 
598 	mac_ring_handle_t	ring_handle;
599 	uint64_t		ring_gen_num;
600 
601 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
602 } ixgbe_rx_ring_t;
603 
604 /*
605  * Software Receive Ring Group
606  */
607 typedef struct ixgbe_rx_group {
608 	uint32_t		index;		/* Group index */
609 	mac_group_handle_t	group_handle;   /* call back group handle */
610 	struct ixgbe		*ixgbe;		/* Pointer to ixgbe struct */
611 	boolean_t		aupe;		/* AUPE bit */
612 	list_t			vlans;		/* list of VLANs to allow */
613 } ixgbe_rx_group_t;
614 
615 /*
616  * structure to map interrupt cleanup to msi-x vector
617  */
618 typedef struct ixgbe_intr_vector {
619 	struct ixgbe *ixgbe;	/* point to my adapter */
620 	ulong_t rx_map[BT_BITOUL(MAX_RX_QUEUE_NUM)];	/* bitmap of rx rings */
621 	int	rxr_cnt;	/* count rx rings */
622 	ulong_t tx_map[BT_BITOUL(MAX_TX_QUEUE_NUM)];	/* bitmap of tx rings */
623 	int	txr_cnt;	/* count tx rings */
624 	ulong_t other_map[BT_BITOUL(2)];		/* bitmap of other */
625 	int	other_cnt;	/* count other interrupt */
626 } ixgbe_intr_vector_t;
627 
628 /*
629  * Software adapter state
630  */
631 typedef struct ixgbe {
632 	int			instance;
633 	mac_handle_t		mac_hdl;
634 	dev_info_t		*dip;
635 	struct ixgbe_hw		hw;
636 	struct ixgbe_osdep	osdep;
637 
638 	adapter_info_t		*capab;	/* adapter hardware capabilities */
639 	ddi_taskq_t		*sfp_taskq;	/* sfp-change taskq */
640 	ddi_taskq_t		*overtemp_taskq; /* overtemp taskq */
641 	ddi_taskq_t		*phy_taskq;	/* external PHY taskq */
642 	uint32_t		eims;		/* interrupt mask setting */
643 	uint32_t		eimc;		/* interrupt mask clear */
644 	uint32_t		eicr;		/* interrupt cause reg */
645 
646 	uint32_t		ixgbe_state;
647 	link_state_t		link_state;
648 	uint32_t		link_speed;
649 	uint32_t		link_duplex;
650 
651 	uint32_t		reset_count;
652 	uint32_t		attach_progress;
653 	uint32_t		loopback_mode;
654 	uint32_t		default_mtu;
655 	uint32_t		max_frame_size;
656 	ixgbe_link_speed	speeds_supported;
657 
658 	uint32_t		rcb_pending;
659 
660 	/*
661 	 * Each msi-x vector: map vector to interrupt cleanup
662 	 */
663 	ixgbe_intr_vector_t	vect_map[MAX_INTR_VECTOR];
664 
665 	/*
666 	 * Receive Rings
667 	 */
668 	ixgbe_rx_ring_t		*rx_rings;	/* Array of rx rings */
669 	uint32_t		num_rx_rings;	/* Number of rx rings in use */
670 	uint32_t		rx_ring_size;	/* Rx descriptor ring size */
671 	uint32_t		rx_buf_size;	/* Rx buffer size */
672 	boolean_t		lro_enable;	/* Large Receive Offload */
673 	uint64_t		lro_pkt_count;	/* LRO packet count */
674 	/*
675 	 * Receive Groups
676 	 */
677 	ixgbe_rx_group_t	*rx_groups;	/* Array of rx groups */
678 	uint32_t		num_rx_groups;	/* Number of rx groups in use */
679 	uint32_t		rx_def_group;	/* Default Rx group index */
680 
681 	/*
682 	 * Transmit Rings
683 	 */
684 	ixgbe_tx_ring_t		*tx_rings;	/* Array of tx rings */
685 	uint32_t		num_tx_rings;	/* Number of tx rings in use */
686 	uint32_t		tx_ring_size;	/* Tx descriptor ring size */
687 	uint32_t		tx_buf_size;	/* Tx buffer size */
688 
689 	boolean_t		tx_ring_init;
690 	boolean_t		tx_head_wb_enable; /* Tx head wrtie-back */
691 	boolean_t		tx_hcksum_enable; /* Tx h/w cksum offload */
692 	boolean_t		lso_enable;	/* Large Segment Offload */
693 	boolean_t		mr_enable;	/* Multiple Tx and Rx Ring */
694 	boolean_t		relax_order_enable; /* Relax Order */
695 	uint32_t		classify_mode;	/* Classification mode */
696 	uint32_t		tx_copy_thresh;	/* Tx copy threshold */
697 	uint32_t		tx_recycle_thresh; /* Tx recycle threshold */
698 	uint32_t		tx_overload_thresh; /* Tx overload threshold */
699 	uint32_t		tx_resched_thresh; /* Tx reschedule threshold */
700 	boolean_t		rx_hcksum_enable; /* Rx h/w cksum offload */
701 	uint32_t		rx_copy_thresh; /* Rx copy threshold */
702 	uint32_t		rx_limit_per_intr; /* Rx pkts per interrupt */
703 	uint32_t		intr_throttling[MAX_INTR_VECTOR];
704 	uint32_t		intr_force;
705 	int			fm_capabilities; /* FMA capabilities */
706 
707 	int			intr_type;
708 	int			intr_cnt;
709 	uint32_t		intr_cnt_max;
710 	uint32_t		intr_cnt_min;
711 	int			intr_cap;
712 	size_t			intr_size;
713 	uint_t			intr_pri;
714 	ddi_intr_handle_t	*htable;
715 	uint32_t		eims_mask;
716 	ddi_cb_handle_t		cb_hdl;		/* Interrupt callback handle */
717 
718 	kmutex_t		gen_lock; /* General lock for device access */
719 	kmutex_t		watchdog_lock;
720 	kmutex_t		rx_pending_lock;
721 
722 	boolean_t		watchdog_enable;
723 	boolean_t		watchdog_start;
724 	timeout_id_t		watchdog_tid;
725 
726 	boolean_t		unicst_init;
727 	uint32_t		unicst_avail;
728 	uint32_t		unicst_total;
729 	ixgbe_ether_addr_t	unicst_addr[MAX_NUM_UNICAST_ADDRESSES];
730 	uint32_t		mcast_count;
731 	struct ether_addr	mcast_table[MAX_NUM_MULTICAST_ADDRESSES];
732 
733 	boolean_t		vlft_enabled; /* VLAN filtering enabled? */
734 	boolean_t		vlft_init;    /* VLAN filtering initialized? */
735 
736 	ulong_t			sys_page_size;
737 
738 	boolean_t		link_check_complete;
739 	hrtime_t		link_check_hrtime;
740 	ddi_periodic_t		periodic_id; /* for link check timer func */
741 
742 	/*
743 	 * LED related constants.
744 	 */
745 	boolean_t		ixgbe_led_active;
746 	boolean_t		ixgbe_led_blink;
747 	uint32_t		ixgbe_led_reg;
748 	uint32_t		ixgbe_led_index;
749 
750 	/*
751 	 * Kstat definitions
752 	 */
753 	kstat_t			*ixgbe_ks;
754 
755 	uint32_t		param_en_10000fdx_cap:1,
756 				param_en_5000fdx_cap:1,
757 				param_en_2500fdx_cap:1,
758 				param_en_1000fdx_cap:1,
759 				param_en_100fdx_cap:1,
760 				param_adv_10000fdx_cap:1,
761 				param_adv_5000fdx_cap:1,
762 				param_adv_2500fdx_cap:1,
763 				param_adv_1000fdx_cap:1,
764 				param_adv_100fdx_cap:1,
765 				param_pause_cap:1,
766 				param_asym_pause_cap:1,
767 				param_rem_fault:1,
768 				param_adv_autoneg_cap:1,
769 				param_adv_pause_cap:1,
770 				param_adv_asym_pause_cap:1,
771 				param_adv_rem_fault:1,
772 				param_lp_10000fdx_cap:1,
773 				param_lp_5000fdx_cap:1,
774 				param_lp_2500fdx_cap:1,
775 				param_lp_1000fdx_cap:1,
776 				param_lp_100fdx_cap:1,
777 				param_lp_autoneg_cap:1,
778 				param_lp_pause_cap:1,
779 				param_lp_asym_pause_cap:1,
780 				param_lp_rem_fault:1,
781 				param_pad_to_32:6;
782 } ixgbe_t;
783 
784 typedef struct ixgbe_stat {
785 	kstat_named_t link_speed;	/* Link Speed */
786 
787 	kstat_named_t reset_count;	/* Reset Count */
788 
789 	kstat_named_t rx_frame_error;	/* Rx Error in Packet */
790 	kstat_named_t rx_cksum_error;	/* Rx Checksum Error */
791 	kstat_named_t rx_exceed_pkt;	/* Rx Exceed Max Pkt Count */
792 
793 	kstat_named_t tx_overload;	/* Tx Desc Ring Overload */
794 	kstat_named_t tx_fail_no_tcb;	/* Tx Fail Freelist Empty */
795 	kstat_named_t tx_fail_no_tbd;	/* Tx Fail Desc Ring Empty */
796 	kstat_named_t tx_fail_dma_bind;	/* Tx Fail DMA bind */
797 	kstat_named_t tx_reschedule;	/* Tx Reschedule */
798 	kstat_named_t tx_break_tbd_limit; /* Reached single xmit desc limit */
799 	kstat_named_t tx_lso_header_fail; /* New mblk for last LSO hdr frag */
800 
801 	kstat_named_t gprc;	/* Good Packets Received Count */
802 	kstat_named_t gptc;	/* Good Packets Xmitted Count */
803 	kstat_named_t gor;	/* Good Octets Received Count */
804 	kstat_named_t got;	/* Good Octets Xmitd Count */
805 	kstat_named_t qor;	/* Queue Octets Received */
806 	kstat_named_t qot;	/* Queue Octets Transmitted */
807 	kstat_named_t qpr;	/* Queue Packets Received */
808 	kstat_named_t qpt;	/* Queue Packets Transmitted */
809 	kstat_named_t prc64;	/* Packets Received - 64b */
810 	kstat_named_t prc127;	/* Packets Received - 65-127b */
811 	kstat_named_t prc255;	/* Packets Received - 127-255b */
812 	kstat_named_t prc511;	/* Packets Received - 256-511b */
813 	kstat_named_t prc1023;	/* Packets Received - 511-1023b */
814 	kstat_named_t prc1522;	/* Packets Received - 1024-1522b */
815 	kstat_named_t ptc64;	/* Packets Xmitted (64b) */
816 	kstat_named_t ptc127;	/* Packets Xmitted (64-127b) */
817 	kstat_named_t ptc255;	/* Packets Xmitted (128-255b) */
818 	kstat_named_t ptc511;	/* Packets Xmitted (255-511b) */
819 	kstat_named_t ptc1023;	/* Packets Xmitted (512-1023b) */
820 	kstat_named_t ptc1522;	/* Packets Xmitted (1024-1522b */
821 
822 	kstat_named_t crcerrs;	/* CRC Error Count */
823 	kstat_named_t illerrc;	/* Illegal Byte Error Count */
824 	kstat_named_t errbc;	/* Error Byte Count */
825 	kstat_named_t mspdc;	/* MAC Short Packet Discard Count */
826 	kstat_named_t mpc;	/* Missed Packets Count */
827 	kstat_named_t mlfc;	/* MAC Local Fault Count */
828 	kstat_named_t mrfc;	/* MAC Remote Fault Count */
829 	kstat_named_t rlec;	/* Receive Length Error Count */
830 	kstat_named_t lxontxc;	/* Link XON Transmitted Count */
831 	kstat_named_t lxonrxc;	/* Link XON Received Count */
832 	kstat_named_t lxofftxc;	/* Link XOFF Transmitted Count */
833 	kstat_named_t lxoffrxc;	/* Link XOFF Received Count */
834 	kstat_named_t bprc;	/* Broadcasts Pkts Received Count */
835 	kstat_named_t mprc;	/* Multicast Pkts Received Count */
836 	kstat_named_t rnbc;	/* Receive No Buffers Count */
837 	kstat_named_t ruc;	/* Receive Undersize Count */
838 	kstat_named_t rfc;	/* Receive Frag Count */
839 	kstat_named_t roc;	/* Receive Oversize Count */
840 	kstat_named_t rjc;	/* Receive Jabber Count */
841 	kstat_named_t tor;	/* Total Octets Recvd Count */
842 	kstat_named_t tot;	/* Total Octets Xmitted Count */
843 	kstat_named_t tpr;	/* Total Packets Received */
844 	kstat_named_t tpt;	/* Total Packets Xmitted */
845 	kstat_named_t mptc;	/* Multicast Packets Xmited Count */
846 	kstat_named_t bptc;	/* Broadcast Packets Xmited Count */
847 	kstat_named_t lroc;	/* LRO Packets Received Count */
848 	kstat_named_t dev_gone;	/* Number of device gone events encountered */
849 } ixgbe_stat_t;
850 
851 /*
852  * Function prototypes in ixgbe_buf.c
853  */
854 int ixgbe_alloc_dma(ixgbe_t *);
855 void ixgbe_free_dma(ixgbe_t *);
856 void ixgbe_set_fma_flags(int);
857 void ixgbe_free_dma_buffer(dma_buffer_t *);
858 int ixgbe_alloc_rx_ring_data(ixgbe_rx_ring_t *rx_ring);
859 void ixgbe_free_rx_ring_data(ixgbe_rx_data_t *rx_data);
860 
861 /*
862  * Function prototypes in ixgbe_main.c
863  */
864 int ixgbe_start(ixgbe_t *, boolean_t);
865 void ixgbe_stop(ixgbe_t *, boolean_t);
866 int ixgbe_driver_setup_link(ixgbe_t *, boolean_t);
867 int ixgbe_multicst_add(ixgbe_t *, const uint8_t *);
868 int ixgbe_multicst_remove(ixgbe_t *, const uint8_t *);
869 enum ioc_reply ixgbe_loopback_ioctl(ixgbe_t *, struct iocblk *, mblk_t *);
870 
871 void ixgbe_enable_watchdog_timer(ixgbe_t *);
872 void ixgbe_disable_watchdog_timer(ixgbe_t *);
873 int ixgbe_atomic_reserve(uint32_t *, uint32_t);
874 
875 int ixgbe_check_acc_handle(ddi_acc_handle_t handle);
876 int ixgbe_check_dma_handle(ddi_dma_handle_t handle);
877 void ixgbe_fm_ereport(ixgbe_t *, char *);
878 
879 void ixgbe_fill_ring(void *, mac_ring_type_t, const int, const int,
880     mac_ring_info_t *, mac_ring_handle_t);
881 void ixgbe_fill_group(void *arg, mac_ring_type_t, const int,
882     mac_group_info_t *, mac_group_handle_t);
883 int ixgbe_rx_ring_intr_enable(mac_intr_handle_t);
884 int ixgbe_rx_ring_intr_disable(mac_intr_handle_t);
885 
886 int ixgbe_transceiver_info(void *, uint_t, mac_transceiver_info_t *);
887 int ixgbe_transceiver_read(void *, uint_t, uint_t, void *, size_t, off_t,
888     size_t *);
889 
890 /*
891  * Function prototypes in ixgbe_gld.c
892  */
893 int ixgbe_m_start(void *);
894 void ixgbe_m_stop(void *);
895 int ixgbe_m_promisc(void *, boolean_t);
896 int ixgbe_m_multicst(void *, boolean_t, const uint8_t *);
897 void ixgbe_m_resources(void *);
898 void ixgbe_m_ioctl(void *, queue_t *, mblk_t *);
899 boolean_t ixgbe_m_getcapab(void *, mac_capab_t, void *);
900 int ixgbe_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *);
901 int ixgbe_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *);
902 void ixgbe_m_propinfo(void *, const char *, mac_prop_id_t,
903     mac_prop_info_handle_t);
904 int ixgbe_set_priv_prop(ixgbe_t *, const char *, uint_t, const void *);
905 int ixgbe_get_priv_prop(ixgbe_t *, const char *, uint_t, void *);
906 boolean_t ixgbe_param_locked(mac_prop_id_t);
907 
908 /*
909  * Function prototypes in ixgbe_rx.c
910  */
911 mblk_t *ixgbe_ring_rx(ixgbe_rx_ring_t *, int);
912 void ixgbe_rx_recycle(caddr_t arg);
913 mblk_t *ixgbe_ring_rx_poll(void *, int);
914 
915 /*
916  * Function prototypes in ixgbe_tx.c
917  */
918 mblk_t *ixgbe_ring_tx(void *, mblk_t *);
919 void ixgbe_free_tcb(tx_control_block_t *);
920 void ixgbe_put_free_list(ixgbe_tx_ring_t *, link_list_t *);
921 uint32_t ixgbe_tx_recycle_legacy(ixgbe_tx_ring_t *);
922 uint32_t ixgbe_tx_recycle_head_wb(ixgbe_tx_ring_t *);
923 
924 /*
925  * Function prototypes in ixgbe_log.c
926  */
927 void ixgbe_notice(void *, const char *, ...);
928 void ixgbe_log(void *, const char *, ...);
929 void ixgbe_error(void *, const char *, ...);
930 
931 /*
932  * Function prototypes in ixgbe_stat.c
933  */
934 int ixgbe_init_stats(ixgbe_t *);
935 int ixgbe_m_stat(void *, uint_t, uint64_t *);
936 int ixgbe_rx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
937 int ixgbe_tx_ring_stat(mac_ring_driver_t, uint_t, uint64_t *);
938 
939 #ifdef __cplusplus
940 }
941 #endif
942 
943 #endif /* _IXGBE_SW_H */
944