1 /*
2  * Copyright (C) 2015 Cavium, Inc.
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms of version 2 of the GNU General Public License
6  * as published by the Free Software Foundation.
7  */
8 
9 #ifndef NIC_H
10 #define	NIC_H
11 
12 #include <linux/netdevice.h>
13 #include <linux/interrupt.h>
14 #include <linux/pci.h>
15 #include "thunder_bgx.h"
16 
17 /* PCI device IDs */
18 #define	PCI_DEVICE_ID_THUNDER_NIC_PF		0xA01E
19 #define	PCI_DEVICE_ID_THUNDER_PASS1_NIC_VF	0x0011
20 #define	PCI_DEVICE_ID_THUNDER_NIC_VF		0xA034
21 #define	PCI_DEVICE_ID_THUNDER_BGX		0xA026
22 
23 /* Subsystem device IDs */
24 #define PCI_SUBSYS_DEVID_88XX_NIC_PF		0xA11E
25 #define PCI_SUBSYS_DEVID_81XX_NIC_PF		0xA21E
26 #define PCI_SUBSYS_DEVID_83XX_NIC_PF		0xA31E
27 
28 #define PCI_SUBSYS_DEVID_88XX_PASS1_NIC_VF	0xA11E
29 #define PCI_SUBSYS_DEVID_88XX_NIC_VF		0xA134
30 #define PCI_SUBSYS_DEVID_81XX_NIC_VF		0xA234
31 #define PCI_SUBSYS_DEVID_83XX_NIC_VF		0xA334
32 
33 
34 /* PCI BAR nos */
35 #define	PCI_CFG_REG_BAR_NUM		0
36 #define	PCI_MSIX_REG_BAR_NUM		4
37 
38 /* NIC SRIOV VF count */
39 #define	MAX_NUM_VFS_SUPPORTED		128
40 #define	DEFAULT_NUM_VF_ENABLED		8
41 
42 #define	NIC_TNS_BYPASS_MODE		0
43 #define	NIC_TNS_MODE			1
44 
45 /* NIC priv flags */
46 #define	NIC_SRIOV_ENABLED		BIT(0)
47 
48 /* Min/Max packet size */
49 #define	NIC_HW_MIN_FRS			64
50 #define	NIC_HW_MAX_FRS			9190 /* Excluding L2 header and FCS */
51 
52 /* Max pkinds */
53 #define	NIC_MAX_PKIND			16
54 
55 /* Max when CPI_ALG is IP diffserv */
56 #define	NIC_MAX_CPI_PER_LMAC		64
57 
58 /* NIC VF Interrupts */
59 #define	NICVF_INTR_CQ			0
60 #define	NICVF_INTR_SQ			1
61 #define	NICVF_INTR_RBDR			2
62 #define	NICVF_INTR_PKT_DROP		3
63 #define	NICVF_INTR_TCP_TIMER		4
64 #define	NICVF_INTR_MBOX			5
65 #define	NICVF_INTR_QS_ERR		6
66 
67 #define	NICVF_INTR_CQ_SHIFT		0
68 #define	NICVF_INTR_SQ_SHIFT		8
69 #define	NICVF_INTR_RBDR_SHIFT		16
70 #define	NICVF_INTR_PKT_DROP_SHIFT	20
71 #define	NICVF_INTR_TCP_TIMER_SHIFT	21
72 #define	NICVF_INTR_MBOX_SHIFT		22
73 #define	NICVF_INTR_QS_ERR_SHIFT		23
74 
75 #define	NICVF_INTR_CQ_MASK		(0xFF << NICVF_INTR_CQ_SHIFT)
76 #define	NICVF_INTR_SQ_MASK		(0xFF << NICVF_INTR_SQ_SHIFT)
77 #define	NICVF_INTR_RBDR_MASK		(0x03 << NICVF_INTR_RBDR_SHIFT)
78 #define	NICVF_INTR_PKT_DROP_MASK	BIT(NICVF_INTR_PKT_DROP_SHIFT)
79 #define	NICVF_INTR_TCP_TIMER_MASK	BIT(NICVF_INTR_TCP_TIMER_SHIFT)
80 #define	NICVF_INTR_MBOX_MASK		BIT(NICVF_INTR_MBOX_SHIFT)
81 #define	NICVF_INTR_QS_ERR_MASK		BIT(NICVF_INTR_QS_ERR_SHIFT)
82 
83 /* MSI-X interrupts */
84 #define	NIC_PF_MSIX_VECTORS		10
85 #define	NIC_VF_MSIX_VECTORS		20
86 
87 #define NIC_PF_INTR_ID_ECC0_SBE		0
88 #define NIC_PF_INTR_ID_ECC0_DBE		1
89 #define NIC_PF_INTR_ID_ECC1_SBE		2
90 #define NIC_PF_INTR_ID_ECC1_DBE		3
91 #define NIC_PF_INTR_ID_ECC2_SBE		4
92 #define NIC_PF_INTR_ID_ECC2_DBE		5
93 #define NIC_PF_INTR_ID_ECC3_SBE		6
94 #define NIC_PF_INTR_ID_ECC3_DBE		7
95 #define NIC_PF_INTR_ID_MBOX0		8
96 #define NIC_PF_INTR_ID_MBOX1		9
97 
98 /* Minimum FIFO level before all packets for the CQ are dropped
99  *
100  * This value ensures that once a packet has been "accepted"
101  * for reception it will not get dropped due to non-availability
102  * of CQ descriptor. An errata in HW mandates this value to be
103  * atleast 0x100.
104  */
105 #define NICPF_CQM_MIN_DROP_LEVEL       0x100
106 
107 /* Global timer for CQ timer thresh interrupts
108  * Calculated for SCLK of 700Mhz
109  * value written should be a 1/16th of what is expected
110  *
111  * 1 tick per 0.025usec
112  */
113 #define NICPF_CLK_PER_INT_TICK		1
114 
115 /* Time to wait before we decide that a SQ is stuck.
116  *
117  * Since both pkt rx and tx notifications are done with same CQ,
118  * when packets are being received at very high rate (eg: L2 forwarding)
119  * then freeing transmitted skbs will be delayed and watchdog
120  * will kick in, resetting interface. Hence keeping this value high.
121  */
122 #define	NICVF_TX_TIMEOUT		(50 * HZ)
123 
124 struct nicvf_cq_poll {
125 	struct  nicvf *nicvf;
126 	u8	cq_idx;		/* Completion queue index */
127 	struct	napi_struct napi;
128 };
129 
130 #define NIC_MAX_RSS_HASH_BITS		8
131 #define NIC_MAX_RSS_IDR_TBL_SIZE	(1 << NIC_MAX_RSS_HASH_BITS)
132 #define RSS_HASH_KEY_SIZE		5 /* 320 bit key */
133 
134 struct nicvf_rss_info {
135 	bool enable;
136 #define	RSS_L2_EXTENDED_HASH_ENA	BIT(0)
137 #define	RSS_IP_HASH_ENA			BIT(1)
138 #define	RSS_TCP_HASH_ENA		BIT(2)
139 #define	RSS_TCP_SYN_DIS			BIT(3)
140 #define	RSS_UDP_HASH_ENA		BIT(4)
141 #define RSS_L4_EXTENDED_HASH_ENA	BIT(5)
142 #define	RSS_ROCE_ENA			BIT(6)
143 #define	RSS_L3_BI_DIRECTION_ENA		BIT(7)
144 #define	RSS_L4_BI_DIRECTION_ENA		BIT(8)
145 	u64 cfg;
146 	u8  hash_bits;
147 	u16 rss_size;
148 	u8  ind_tbl[NIC_MAX_RSS_IDR_TBL_SIZE];
149 	u64 key[RSS_HASH_KEY_SIZE];
150 } ____cacheline_aligned_in_smp;
151 
152 struct nicvf_pfc {
153 	u8    autoneg;
154 	u8    fc_rx;
155 	u8    fc_tx;
156 };
157 
158 enum rx_stats_reg_offset {
159 	RX_OCTS = 0x0,
160 	RX_UCAST = 0x1,
161 	RX_BCAST = 0x2,
162 	RX_MCAST = 0x3,
163 	RX_RED = 0x4,
164 	RX_RED_OCTS = 0x5,
165 	RX_ORUN = 0x6,
166 	RX_ORUN_OCTS = 0x7,
167 	RX_FCS = 0x8,
168 	RX_L2ERR = 0x9,
169 	RX_DRP_BCAST = 0xa,
170 	RX_DRP_MCAST = 0xb,
171 	RX_DRP_L3BCAST = 0xc,
172 	RX_DRP_L3MCAST = 0xd,
173 	RX_STATS_ENUM_LAST,
174 };
175 
176 enum tx_stats_reg_offset {
177 	TX_OCTS = 0x0,
178 	TX_UCAST = 0x1,
179 	TX_BCAST = 0x2,
180 	TX_MCAST = 0x3,
181 	TX_DROP = 0x4,
182 	TX_STATS_ENUM_LAST,
183 };
184 
185 struct nicvf_hw_stats {
186 	u64 rx_bytes;
187 	u64 rx_frames;
188 	u64 rx_ucast_frames;
189 	u64 rx_bcast_frames;
190 	u64 rx_mcast_frames;
191 	u64 rx_drops;
192 	u64 rx_drop_red;
193 	u64 rx_drop_red_bytes;
194 	u64 rx_drop_overrun;
195 	u64 rx_drop_overrun_bytes;
196 	u64 rx_drop_bcast;
197 	u64 rx_drop_mcast;
198 	u64 rx_drop_l3_bcast;
199 	u64 rx_drop_l3_mcast;
200 	u64 rx_fcs_errors;
201 	u64 rx_l2_errors;
202 
203 	u64 tx_bytes;
204 	u64 tx_frames;
205 	u64 tx_ucast_frames;
206 	u64 tx_bcast_frames;
207 	u64 tx_mcast_frames;
208 	u64 tx_drops;
209 };
210 
211 struct nicvf_drv_stats {
212 	/* CQE Rx errs */
213 	u64 rx_bgx_truncated_pkts;
214 	u64 rx_jabber_errs;
215 	u64 rx_fcs_errs;
216 	u64 rx_bgx_errs;
217 	u64 rx_prel2_errs;
218 	u64 rx_l2_hdr_malformed;
219 	u64 rx_oversize;
220 	u64 rx_undersize;
221 	u64 rx_l2_len_mismatch;
222 	u64 rx_l2_pclp;
223 	u64 rx_ip_ver_errs;
224 	u64 rx_ip_csum_errs;
225 	u64 rx_ip_hdr_malformed;
226 	u64 rx_ip_payload_malformed;
227 	u64 rx_ip_ttl_errs;
228 	u64 rx_l3_pclp;
229 	u64 rx_l4_malformed;
230 	u64 rx_l4_csum_errs;
231 	u64 rx_udp_len_errs;
232 	u64 rx_l4_port_errs;
233 	u64 rx_tcp_flag_errs;
234 	u64 rx_tcp_offset_errs;
235 	u64 rx_l4_pclp;
236 	u64 rx_truncated_pkts;
237 
238 	/* CQE Tx errs */
239 	u64 tx_desc_fault;
240 	u64 tx_hdr_cons_err;
241 	u64 tx_subdesc_err;
242 	u64 tx_max_size_exceeded;
243 	u64 tx_imm_size_oflow;
244 	u64 tx_data_seq_err;
245 	u64 tx_mem_seq_err;
246 	u64 tx_lock_viol;
247 	u64 tx_data_fault;
248 	u64 tx_tstmp_conflict;
249 	u64 tx_tstmp_timeout;
250 	u64 tx_mem_fault;
251 	u64 tx_csum_overlap;
252 	u64 tx_csum_overflow;
253 
254 	/* driver debug stats */
255 	u64 tx_tso;
256 	u64 tx_timeout;
257 	u64 txq_stop;
258 	u64 txq_wake;
259 
260 	u64 rcv_buffer_alloc_failures;
261 	u64 page_alloc;
262 
263 	struct u64_stats_sync   syncp;
264 };
265 
266 struct cavium_ptp;
267 
268 struct xcast_addr_list {
269 	int              count;
270 	u64              mc[];
271 };
272 
273 struct nicvf_work {
274 	struct delayed_work    work;
275 	u8                     mode;
276 	struct xcast_addr_list *mc;
277 };
278 
279 struct nicvf {
280 	struct nicvf		*pnicvf;
281 	struct net_device	*netdev;
282 	struct pci_dev		*pdev;
283 	void __iomem		*reg_base;
284 	struct bpf_prog         *xdp_prog;
285 #define	MAX_QUEUES_PER_QSET			8
286 	struct queue_set	*qs;
287 	void			*iommu_domain;
288 	u8			vf_id;
289 	u8			sqs_id;
290 	bool                    sqs_mode;
291 	bool			hw_tso;
292 	bool			t88;
293 
294 	/* Receive buffer alloc */
295 	u32			rb_page_offset;
296 	u16			rb_pageref;
297 	bool			rb_alloc_fail;
298 	bool			rb_work_scheduled;
299 	struct page		*rb_page;
300 	struct delayed_work	rbdr_work;
301 	struct tasklet_struct	rbdr_task;
302 
303 	/* Secondary Qset */
304 	u8			sqs_count;
305 #define	MAX_SQS_PER_VF_SINGLE_NODE		5
306 #define	MAX_SQS_PER_VF				11
307 	struct nicvf		*snicvf[MAX_SQS_PER_VF];
308 
309 	/* Queue count */
310 	u8			rx_queues;
311 	u8			tx_queues;
312 	u8			xdp_tx_queues;
313 	u8			max_queues;
314 
315 	u8			node;
316 	u8			cpi_alg;
317 	bool			link_up;
318 	u8			mac_type;
319 	u8			duplex;
320 	u32			speed;
321 	bool			tns_mode;
322 	bool			loopback_supported;
323 	struct nicvf_rss_info	rss_info;
324 	struct nicvf_pfc	pfc;
325 	struct tasklet_struct	qs_err_task;
326 	struct work_struct	reset_task;
327 	struct nicvf_work       rx_mode_work;
328 	/* spinlock to protect workqueue arguments from concurrent access */
329 	spinlock_t              rx_mode_wq_lock;
330 
331 	/* PTP timestamp */
332 	struct cavium_ptp	*ptp_clock;
333 	/* Inbound timestamping is on */
334 	bool			hw_rx_tstamp;
335 	/* When the packet that requires timestamping is sent, hardware inserts
336 	 * two entries to the completion queue.  First is the regular
337 	 * CQE_TYPE_SEND entry that signals that the packet was sent.
338 	 * The second is CQE_TYPE_SEND_PTP that contains the actual timestamp
339 	 * for that packet.
340 	 * `ptp_skb` is initialized in the handler for the CQE_TYPE_SEND
341 	 * entry and is used and zeroed in the handler for the CQE_TYPE_SEND_PTP
342 	 * entry.
343 	 * So `ptp_skb` is used to hold the pointer to the packet between
344 	 * the calls to CQE_TYPE_SEND and CQE_TYPE_SEND_PTP handlers.
345 	 */
346 	struct sk_buff		*ptp_skb;
347 	/* `tx_ptp_skbs` is set when the hardware is sending a packet that
348 	 * requires timestamping.  Cavium hardware can not process more than one
349 	 * such packet at once so this is set each time the driver submits
350 	 * a packet that requires timestamping to the send queue and clears
351 	 * each time it receives the entry on the completion queue saying
352 	 * that such packet was sent.
353 	 * So `tx_ptp_skbs` prevents driver from submitting more than one
354 	 * packet that requires timestamping to the hardware for transmitting.
355 	 */
356 	atomic_t		tx_ptp_skbs;
357 
358 	/* Interrupt coalescing settings */
359 	u32			cq_coalesce_usecs;
360 	u32			msg_enable;
361 
362 	/* Stats */
363 	struct nicvf_hw_stats   hw_stats;
364 	struct nicvf_drv_stats  __percpu *drv_stats;
365 	struct bgx_stats	bgx_stats;
366 
367 	/* Napi */
368 	struct nicvf_cq_poll	*napi[8];
369 
370 	/* MSI-X  */
371 	u8			num_vec;
372 	char			irq_name[NIC_VF_MSIX_VECTORS][IFNAMSIZ + 15];
373 	bool			irq_allocated[NIC_VF_MSIX_VECTORS];
374 	cpumask_var_t		affinity_mask[NIC_VF_MSIX_VECTORS];
375 
376 	/* VF <-> PF mailbox communication */
377 	bool			pf_acked;
378 	bool			pf_nacked;
379 	bool			set_mac_pending;
380 } ____cacheline_aligned_in_smp;
381 
382 /* PF <--> VF Mailbox communication
383  * Eight 64bit registers are shared between PF and VF.
384  * Separate set for each VF.
385  * Writing '1' into last register mbx7 means end of message.
386  */
387 
388 /* PF <--> VF mailbox communication */
389 #define	NIC_PF_VF_MAILBOX_SIZE		2
390 #define	NIC_MBOX_MSG_TIMEOUT		2000 /* ms */
391 
392 /* Mailbox message types */
393 #define	NIC_MBOX_MSG_READY		0x01	/* Is PF ready to rcv msgs */
394 #define	NIC_MBOX_MSG_ACK		0x02	/* ACK the message received */
395 #define	NIC_MBOX_MSG_NACK		0x03	/* NACK the message received */
396 #define	NIC_MBOX_MSG_QS_CFG		0x04	/* Configure Qset */
397 #define	NIC_MBOX_MSG_RQ_CFG		0x05	/* Configure receive queue */
398 #define	NIC_MBOX_MSG_SQ_CFG		0x06	/* Configure Send queue */
399 #define	NIC_MBOX_MSG_RQ_DROP_CFG	0x07	/* Configure receive queue */
400 #define	NIC_MBOX_MSG_SET_MAC		0x08	/* Add MAC ID to DMAC filter */
401 #define	NIC_MBOX_MSG_SET_MAX_FRS	0x09	/* Set max frame size */
402 #define	NIC_MBOX_MSG_CPI_CFG		0x0A	/* Config CPI, RSSI */
403 #define	NIC_MBOX_MSG_RSS_SIZE		0x0B	/* Get RSS indir_tbl size */
404 #define	NIC_MBOX_MSG_RSS_CFG		0x0C	/* Config RSS table */
405 #define	NIC_MBOX_MSG_RSS_CFG_CONT	0x0D	/* RSS config continuation */
406 #define	NIC_MBOX_MSG_RQ_BP_CFG		0x0E	/* RQ backpressure config */
407 #define	NIC_MBOX_MSG_RQ_SW_SYNC		0x0F	/* Flush inflight pkts to RQ */
408 #define	NIC_MBOX_MSG_BGX_STATS		0x10	/* Get stats from BGX */
409 #define	NIC_MBOX_MSG_BGX_LINK_CHANGE	0x11	/* BGX:LMAC link status */
410 #define	NIC_MBOX_MSG_ALLOC_SQS		0x12	/* Allocate secondary Qset */
411 #define	NIC_MBOX_MSG_NICVF_PTR		0x13	/* Send nicvf ptr to PF */
412 #define	NIC_MBOX_MSG_PNICVF_PTR		0x14	/* Get primary qset nicvf ptr */
413 #define	NIC_MBOX_MSG_SNICVF_PTR		0x15	/* Send sqet nicvf ptr to PVF */
414 #define	NIC_MBOX_MSG_LOOPBACK		0x16	/* Set interface in loopback */
415 #define	NIC_MBOX_MSG_RESET_STAT_COUNTER 0x17	/* Reset statistics counters */
416 #define	NIC_MBOX_MSG_PFC		0x18	/* Pause frame control */
417 #define	NIC_MBOX_MSG_PTP_CFG		0x19	/* HW packet timestamp */
418 #define	NIC_MBOX_MSG_CFG_DONE		0xF0	/* VF configuration done */
419 #define	NIC_MBOX_MSG_SHUTDOWN		0xF1	/* VF is being shutdown */
420 #define	NIC_MBOX_MSG_RESET_XCAST	0xF2    /* Reset DCAM filtering mode */
421 #define	NIC_MBOX_MSG_ADD_MCAST		0xF3    /* Add MAC to DCAM filters */
422 #define	NIC_MBOX_MSG_SET_XCAST		0xF4    /* Set MCAST/BCAST RX mode */
423 
424 struct nic_cfg_msg {
425 	u8    msg;
426 	u8    vf_id;
427 	u8    node_id;
428 	u8    tns_mode:1;
429 	u8    sqs_mode:1;
430 	u8    loopback_supported:1;
431 	u8    mac_addr[ETH_ALEN];
432 };
433 
434 /* Qset configuration */
435 struct qs_cfg_msg {
436 	u8    msg;
437 	u8    num;
438 	u8    sqs_count;
439 	u64   cfg;
440 };
441 
442 /* Receive queue configuration */
443 struct rq_cfg_msg {
444 	u8    msg;
445 	u8    qs_num;
446 	u8    rq_num;
447 	u64   cfg;
448 };
449 
450 /* Send queue configuration */
451 struct sq_cfg_msg {
452 	u8    msg;
453 	u8    qs_num;
454 	u8    sq_num;
455 	bool  sqs_mode;
456 	u64   cfg;
457 };
458 
459 /* Set VF's MAC address */
460 struct set_mac_msg {
461 	u8    msg;
462 	u8    vf_id;
463 	u8    mac_addr[ETH_ALEN];
464 };
465 
466 /* Set Maximum frame size */
467 struct set_frs_msg {
468 	u8    msg;
469 	u8    vf_id;
470 	u16   max_frs;
471 };
472 
473 /* Set CPI algorithm type */
474 struct cpi_cfg_msg {
475 	u8    msg;
476 	u8    vf_id;
477 	u8    rq_cnt;
478 	u8    cpi_alg;
479 };
480 
481 /* Get RSS table size */
482 struct rss_sz_msg {
483 	u8    msg;
484 	u8    vf_id;
485 	u16   ind_tbl_size;
486 };
487 
488 /* Set RSS configuration */
489 struct rss_cfg_msg {
490 	u8    msg;
491 	u8    vf_id;
492 	u8    hash_bits;
493 	u8    tbl_len;
494 	u8    tbl_offset;
495 #define RSS_IND_TBL_LEN_PER_MBX_MSG	8
496 	u8    ind_tbl[RSS_IND_TBL_LEN_PER_MBX_MSG];
497 };
498 
499 struct bgx_stats_msg {
500 	u8    msg;
501 	u8    vf_id;
502 	u8    rx;
503 	u8    idx;
504 	u64   stats;
505 };
506 
507 /* Physical interface link status */
508 struct bgx_link_status {
509 	u8    msg;
510 	u8    mac_type;
511 	u8    link_up;
512 	u8    duplex;
513 	u32   speed;
514 };
515 
516 /* Get Extra Qset IDs */
517 struct sqs_alloc {
518 	u8    msg;
519 	u8    vf_id;
520 	u8    qs_count;
521 };
522 
523 struct nicvf_ptr {
524 	u8    msg;
525 	u8    vf_id;
526 	bool  sqs_mode;
527 	u8    sqs_id;
528 	u64   nicvf;
529 };
530 
531 /* Set interface in loopback mode */
532 struct set_loopback {
533 	u8    msg;
534 	u8    vf_id;
535 	bool  enable;
536 };
537 
538 /* Reset statistics counters */
539 struct reset_stat_cfg {
540 	u8    msg;
541 	/* Bitmap to select NIC_PF_VNIC(vf_id)_RX_STAT(0..13) */
542 	u16   rx_stat_mask;
543 	/* Bitmap to select NIC_PF_VNIC(vf_id)_TX_STAT(0..4) */
544 	u8    tx_stat_mask;
545 	/* Bitmap to select NIC_PF_QS(0..127)_RQ(0..7)_STAT(0..1)
546 	 * bit14, bit15 NIC_PF_QS(vf_id)_RQ7_STAT(0..1)
547 	 * bit12, bit13 NIC_PF_QS(vf_id)_RQ6_STAT(0..1)
548 	 * ..
549 	 * bit2, bit3 NIC_PF_QS(vf_id)_RQ1_STAT(0..1)
550 	 * bit0, bit1 NIC_PF_QS(vf_id)_RQ0_STAT(0..1)
551 	 */
552 	u16   rq_stat_mask;
553 	/* Bitmap to select NIC_PF_QS(0..127)_SQ(0..7)_STAT(0..1)
554 	 * bit14, bit15 NIC_PF_QS(vf_id)_SQ7_STAT(0..1)
555 	 * bit12, bit13 NIC_PF_QS(vf_id)_SQ6_STAT(0..1)
556 	 * ..
557 	 * bit2, bit3 NIC_PF_QS(vf_id)_SQ1_STAT(0..1)
558 	 * bit0, bit1 NIC_PF_QS(vf_id)_SQ0_STAT(0..1)
559 	 */
560 	u16   sq_stat_mask;
561 };
562 
563 struct pfc {
564 	u8    msg;
565 	u8    get; /* Get or set PFC settings */
566 	u8    autoneg;
567 	u8    fc_rx;
568 	u8    fc_tx;
569 };
570 
571 struct set_ptp {
572 	u8    msg;
573 	bool  enable;
574 };
575 
576 struct xcast {
577 	u8    msg;
578 	union {
579 		u8    mode;
580 		u64   mac;
581 	} data;
582 };
583 
584 /* 128 bit shared memory between PF and each VF */
585 union nic_mbx {
586 	struct { u8 msg; }	msg;
587 	struct nic_cfg_msg	nic_cfg;
588 	struct qs_cfg_msg	qs;
589 	struct rq_cfg_msg	rq;
590 	struct sq_cfg_msg	sq;
591 	struct set_mac_msg	mac;
592 	struct set_frs_msg	frs;
593 	struct cpi_cfg_msg	cpi_cfg;
594 	struct rss_sz_msg	rss_size;
595 	struct rss_cfg_msg	rss_cfg;
596 	struct bgx_stats_msg    bgx_stats;
597 	struct bgx_link_status  link_status;
598 	struct sqs_alloc        sqs_alloc;
599 	struct nicvf_ptr	nicvf;
600 	struct set_loopback	lbk;
601 	struct reset_stat_cfg	reset_stat;
602 	struct pfc		pfc;
603 	struct set_ptp		ptp;
604 	struct xcast            xcast;
605 };
606 
607 #define NIC_NODE_ID_MASK	0x03
608 #define NIC_NODE_ID_SHIFT	44
609 
610 static inline int nic_get_node_id(struct pci_dev *pdev)
611 {
612 	u64 addr = pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM);
613 	return ((addr >> NIC_NODE_ID_SHIFT) & NIC_NODE_ID_MASK);
614 }
615 
616 static inline bool pass1_silicon(struct pci_dev *pdev)
617 {
618 	return (pdev->revision < 8) &&
619 		(pdev->subsystem_device == PCI_SUBSYS_DEVID_88XX_NIC_PF);
620 }
621 
622 static inline bool pass2_silicon(struct pci_dev *pdev)
623 {
624 	return (pdev->revision >= 8) &&
625 		(pdev->subsystem_device == PCI_SUBSYS_DEVID_88XX_NIC_PF);
626 }
627 
628 int nicvf_set_real_num_queues(struct net_device *netdev,
629 			      int tx_queues, int rx_queues);
630 int nicvf_open(struct net_device *netdev);
631 int nicvf_stop(struct net_device *netdev);
632 int nicvf_send_msg_to_pf(struct nicvf *vf, union nic_mbx *mbx);
633 void nicvf_config_rss(struct nicvf *nic);
634 void nicvf_set_rss_key(struct nicvf *nic);
635 void nicvf_set_ethtool_ops(struct net_device *netdev);
636 void nicvf_update_stats(struct nicvf *nic);
637 void nicvf_update_lmac_stats(struct nicvf *nic);
638 
639 #endif /* NIC_H */
640