xref: /linux/drivers/net/ethernet/intel/ixgbe/ixgbe.h (revision 5f60d5f6bbc12e782fac78110b0ee62698f3b576)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
3 
4 #ifndef _IXGBE_H_
5 #define _IXGBE_H_
6 
7 #include <linux/bitops.h>
8 #include <linux/types.h>
9 #include <linux/pci.h>
10 #include <linux/netdevice.h>
11 #include <linux/cpumask.h>
12 #include <linux/if_vlan.h>
13 #include <linux/jiffies.h>
14 #include <linux/phy.h>
15 
16 #include <linux/timecounter.h>
17 #include <linux/net_tstamp.h>
18 #include <linux/ptp_clock_kernel.h>
19 
20 #include "ixgbe_type.h"
21 #include "ixgbe_common.h"
22 #include "ixgbe_dcb.h"
23 #if IS_ENABLED(CONFIG_FCOE)
24 #define IXGBE_FCOE
25 #include "ixgbe_fcoe.h"
26 #endif /* IS_ENABLED(CONFIG_FCOE) */
27 #ifdef CONFIG_IXGBE_DCA
28 #include <linux/dca.h>
29 #endif
30 #include "ixgbe_ipsec.h"
31 
32 #include <net/xdp.h>
33 
34 /* common prefix used by pr_<> macros */
35 #undef pr_fmt
36 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
37 
38 /* TX/RX descriptor defines */
39 #define IXGBE_DEFAULT_TXD		    512
40 #define IXGBE_DEFAULT_TX_WORK		    256
41 #define IXGBE_MAX_TXD_82598		   4096
42 #define IXGBE_MAX_TXD_82599		   8192
43 #define IXGBE_MAX_TXD_X540		   8192
44 #define IXGBE_MAX_TXD_X550		  32768
45 #define IXGBE_MIN_TXD			     64
46 
47 #if (PAGE_SIZE < 8192)
48 #define IXGBE_DEFAULT_RXD		    512
49 #else
50 #define IXGBE_DEFAULT_RXD		    128
51 #endif
52 #define IXGBE_MAX_RXD_82598		   4096
53 #define IXGBE_MAX_RXD_82599		   8192
54 #define IXGBE_MAX_RXD_X540		   8192
55 #define IXGBE_MAX_RXD_X550		  32768
56 #define IXGBE_MIN_RXD			     64
57 
58 /* flow control */
59 #define IXGBE_MIN_FCRTL			   0x40
60 #define IXGBE_MAX_FCRTL			0x7FF80
61 #define IXGBE_MIN_FCRTH			  0x600
62 #define IXGBE_MAX_FCRTH			0x7FFF0
63 #define IXGBE_DEFAULT_FCPAUSE		 0xFFFF
64 #define IXGBE_MIN_FCPAUSE		      0
65 #define IXGBE_MAX_FCPAUSE		 0xFFFF
66 
67 /* Supported Rx Buffer Sizes */
68 #define IXGBE_RXBUFFER_256    256  /* Used for skb receive header */
69 #define IXGBE_RXBUFFER_1536  1536
70 #define IXGBE_RXBUFFER_2K    2048
71 #define IXGBE_RXBUFFER_3K    3072
72 #define IXGBE_RXBUFFER_4K    4096
73 #define IXGBE_MAX_RXBUFFER  16384  /* largest size for a single descriptor */
74 
75 #define IXGBE_PKT_HDR_PAD   (ETH_HLEN + ETH_FCS_LEN + (VLAN_HLEN * 2))
76 
77 /* Attempt to maximize the headroom available for incoming frames.  We
78  * use a 2K buffer for receives and need 1536/1534 to store the data for
79  * the frame.  This leaves us with 512 bytes of room.  From that we need
80  * to deduct the space needed for the shared info and the padding needed
81  * to IP align the frame.
82  *
83  * Note: For cache line sizes 256 or larger this value is going to end
84  *	 up negative.  In these cases we should fall back to the 3K
85  *	 buffers.
86  */
87 #if (PAGE_SIZE < 8192)
88 #define IXGBE_MAX_2K_FRAME_BUILD_SKB (IXGBE_RXBUFFER_1536 - NET_IP_ALIGN)
89 #define IXGBE_2K_TOO_SMALL_WITH_PADDING \
90 ((NET_SKB_PAD + IXGBE_RXBUFFER_1536) > SKB_WITH_OVERHEAD(IXGBE_RXBUFFER_2K))
91 
92 static inline int ixgbe_compute_pad(int rx_buf_len)
93 {
94 	int page_size, pad_size;
95 
96 	page_size = ALIGN(rx_buf_len, PAGE_SIZE / 2);
97 	pad_size = SKB_WITH_OVERHEAD(page_size) - rx_buf_len;
98 
99 	return pad_size;
100 }
101 
102 static inline int ixgbe_skb_pad(void)
103 {
104 	int rx_buf_len;
105 
106 	/* If a 2K buffer cannot handle a standard Ethernet frame then
107 	 * optimize padding for a 3K buffer instead of a 1.5K buffer.
108 	 *
109 	 * For a 3K buffer we need to add enough padding to allow for
110 	 * tailroom due to NET_IP_ALIGN possibly shifting us out of
111 	 * cache-line alignment.
112 	 */
113 	if (IXGBE_2K_TOO_SMALL_WITH_PADDING)
114 		rx_buf_len = IXGBE_RXBUFFER_3K + SKB_DATA_ALIGN(NET_IP_ALIGN);
115 	else
116 		rx_buf_len = IXGBE_RXBUFFER_1536;
117 
118 	/* if needed make room for NET_IP_ALIGN */
119 	rx_buf_len -= NET_IP_ALIGN;
120 
121 	return ixgbe_compute_pad(rx_buf_len);
122 }
123 
124 #define IXGBE_SKB_PAD	ixgbe_skb_pad()
125 #else
126 #define IXGBE_SKB_PAD	(NET_SKB_PAD + NET_IP_ALIGN)
127 #endif
128 
129 /*
130  * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN means we
131  * reserve 64 more, and skb_shared_info adds an additional 320 bytes more,
132  * this adds up to 448 bytes of extra data.
133  *
134  * Since netdev_alloc_skb now allocates a page fragment we can use a value
135  * of 256 and the resultant skb will have a truesize of 960 or less.
136  */
137 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
138 
139 /* How many Rx Buffers do we bundle into one write to the hardware ? */
140 #define IXGBE_RX_BUFFER_WRITE	16	/* Must be power of 2 */
141 
142 #define IXGBE_RX_DMA_ATTR \
143 	(DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING)
144 
145 enum ixgbe_tx_flags {
146 	/* cmd_type flags */
147 	IXGBE_TX_FLAGS_HW_VLAN	= 0x01,
148 	IXGBE_TX_FLAGS_TSO	= 0x02,
149 	IXGBE_TX_FLAGS_TSTAMP	= 0x04,
150 
151 	/* olinfo flags */
152 	IXGBE_TX_FLAGS_CC	= 0x08,
153 	IXGBE_TX_FLAGS_IPV4	= 0x10,
154 	IXGBE_TX_FLAGS_CSUM	= 0x20,
155 	IXGBE_TX_FLAGS_IPSEC	= 0x40,
156 
157 	/* software defined flags */
158 	IXGBE_TX_FLAGS_SW_VLAN	= 0x80,
159 	IXGBE_TX_FLAGS_FCOE	= 0x100,
160 };
161 
162 /* VLAN info */
163 #define IXGBE_TX_FLAGS_VLAN_MASK	0xffff0000
164 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK	0xe0000000
165 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT  29
166 #define IXGBE_TX_FLAGS_VLAN_SHIFT	16
167 
168 #define IXGBE_MAX_VF_MC_ENTRIES         30
169 #define IXGBE_MAX_VF_FUNCTIONS          64
170 #define IXGBE_MAX_VFTA_ENTRIES          128
171 #define MAX_EMULATION_MAC_ADDRS         16
172 #define IXGBE_MAX_PF_MACVLANS           15
173 #define VMDQ_P(p)   ((p) + adapter->ring_feature[RING_F_VMDQ].offset)
174 #define IXGBE_82599_VF_DEVICE_ID        0x10ED
175 #define IXGBE_X540_VF_DEVICE_ID         0x1515
176 
177 #define UPDATE_VF_COUNTER_32bit(reg, last_counter, counter)	\
178 	{							\
179 		u32 current_counter = IXGBE_READ_REG(hw, reg);	\
180 		if (current_counter < last_counter)		\
181 			counter += 0x100000000LL;		\
182 		last_counter = current_counter;			\
183 		counter &= 0xFFFFFFFF00000000LL;		\
184 		counter |= current_counter;			\
185 	}
186 
187 #define UPDATE_VF_COUNTER_36bit(reg_lsb, reg_msb, last_counter, counter) \
188 	{								 \
189 		u64 current_counter_lsb = IXGBE_READ_REG(hw, reg_lsb);	 \
190 		u64 current_counter_msb = IXGBE_READ_REG(hw, reg_msb);	 \
191 		u64 current_counter = (current_counter_msb << 32) |	 \
192 			current_counter_lsb;				 \
193 		if (current_counter < last_counter)			 \
194 			counter += 0x1000000000LL;			 \
195 		last_counter = current_counter;				 \
196 		counter &= 0xFFFFFFF000000000LL;			 \
197 		counter |= current_counter;				 \
198 	}
199 
200 struct vf_stats {
201 	u64 gprc;
202 	u64 gorc;
203 	u64 gptc;
204 	u64 gotc;
205 	u64 mprc;
206 };
207 
208 struct vf_data_storage {
209 	struct pci_dev *vfdev;
210 	unsigned char vf_mac_addresses[ETH_ALEN];
211 	u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
212 	u16 num_vf_mc_hashes;
213 	bool clear_to_send;
214 	struct vf_stats vfstats;
215 	struct vf_stats last_vfstats;
216 	struct vf_stats saved_rst_vfstats;
217 	bool pf_set_mac;
218 	u16 pf_vlan; /* When set, guest VLAN config not allowed. */
219 	u16 pf_qos;
220 	u16 tx_rate;
221 	int link_enable;
222 	int link_state;
223 	u8 spoofchk_enabled;
224 	bool rss_query_enabled;
225 	u8 trusted;
226 	int xcast_mode;
227 	unsigned int vf_api;
228 	u8 primary_abort_count;
229 };
230 
231 enum ixgbevf_xcast_modes {
232 	IXGBEVF_XCAST_MODE_NONE = 0,
233 	IXGBEVF_XCAST_MODE_MULTI,
234 	IXGBEVF_XCAST_MODE_ALLMULTI,
235 	IXGBEVF_XCAST_MODE_PROMISC,
236 };
237 
238 struct vf_macvlans {
239 	struct list_head l;
240 	int vf;
241 	bool free;
242 	bool is_macvlan;
243 	u8 vf_macvlan[ETH_ALEN];
244 };
245 
246 #define IXGBE_MAX_TXD_PWR	14
247 #define IXGBE_MAX_DATA_PER_TXD	(1u << IXGBE_MAX_TXD_PWR)
248 
249 /* Tx Descriptors needed, worst case */
250 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IXGBE_MAX_DATA_PER_TXD)
251 #define DESC_NEEDED (MAX_SKB_FRAGS + 4)
252 
253 /* wrapper around a pointer to a socket buffer,
254  * so a DMA handle can be stored along with the buffer */
255 struct ixgbe_tx_buffer {
256 	union ixgbe_adv_tx_desc *next_to_watch;
257 	unsigned long time_stamp;
258 	union {
259 		struct sk_buff *skb;
260 		struct xdp_frame *xdpf;
261 	};
262 	unsigned int bytecount;
263 	unsigned short gso_segs;
264 	__be16 protocol;
265 	DEFINE_DMA_UNMAP_ADDR(dma);
266 	DEFINE_DMA_UNMAP_LEN(len);
267 	u32 tx_flags;
268 };
269 
270 struct ixgbe_rx_buffer {
271 	union {
272 		struct {
273 			struct sk_buff *skb;
274 			dma_addr_t dma;
275 			struct page *page;
276 			__u32 page_offset;
277 			__u16 pagecnt_bias;
278 		};
279 		struct {
280 			bool discard;
281 			struct xdp_buff *xdp;
282 		};
283 	};
284 };
285 
286 struct ixgbe_queue_stats {
287 	u64 packets;
288 	u64 bytes;
289 };
290 
291 struct ixgbe_tx_queue_stats {
292 	u64 restart_queue;
293 	u64 tx_busy;
294 	u64 tx_done_old;
295 };
296 
297 struct ixgbe_rx_queue_stats {
298 	u64 rsc_count;
299 	u64 rsc_flush;
300 	u64 non_eop_descs;
301 	u64 alloc_rx_page;
302 	u64 alloc_rx_page_failed;
303 	u64 alloc_rx_buff_failed;
304 	u64 csum_err;
305 };
306 
307 #define IXGBE_TS_HDR_LEN 8
308 
309 enum ixgbe_ring_state_t {
310 	__IXGBE_RX_3K_BUFFER,
311 	__IXGBE_RX_BUILD_SKB_ENABLED,
312 	__IXGBE_RX_RSC_ENABLED,
313 	__IXGBE_RX_CSUM_UDP_ZERO_ERR,
314 	__IXGBE_RX_FCOE,
315 	__IXGBE_TX_FDIR_INIT_DONE,
316 	__IXGBE_TX_XPS_INIT_DONE,
317 	__IXGBE_TX_DETECT_HANG,
318 	__IXGBE_HANG_CHECK_ARMED,
319 	__IXGBE_TX_XDP_RING,
320 	__IXGBE_TX_DISABLED,
321 };
322 
323 #define ring_uses_build_skb(ring) \
324 	test_bit(__IXGBE_RX_BUILD_SKB_ENABLED, &(ring)->state)
325 
326 struct ixgbe_fwd_adapter {
327 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
328 	struct net_device *netdev;
329 	unsigned int tx_base_queue;
330 	unsigned int rx_base_queue;
331 	int pool;
332 };
333 
334 #define check_for_tx_hang(ring) \
335 	test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
336 #define set_check_for_tx_hang(ring) \
337 	set_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
338 #define clear_check_for_tx_hang(ring) \
339 	clear_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
340 #define ring_is_rsc_enabled(ring) \
341 	test_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
342 #define set_ring_rsc_enabled(ring) \
343 	set_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
344 #define clear_ring_rsc_enabled(ring) \
345 	clear_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
346 #define ring_is_xdp(ring) \
347 	test_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
348 #define set_ring_xdp(ring) \
349 	set_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
350 #define clear_ring_xdp(ring) \
351 	clear_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
352 struct ixgbe_ring {
353 	struct ixgbe_ring *next;	/* pointer to next ring in q_vector */
354 	struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */
355 	struct net_device *netdev;	/* netdev ring belongs to */
356 	struct bpf_prog *xdp_prog;
357 	struct device *dev;		/* device for DMA mapping */
358 	void *desc;			/* descriptor ring memory */
359 	union {
360 		struct ixgbe_tx_buffer *tx_buffer_info;
361 		struct ixgbe_rx_buffer *rx_buffer_info;
362 	};
363 	unsigned long state;
364 	u8 __iomem *tail;
365 	dma_addr_t dma;			/* phys. address of descriptor ring */
366 	unsigned int size;		/* length in bytes */
367 
368 	u16 count;			/* amount of descriptors */
369 
370 	u8 queue_index; /* needed for multiqueue queue management */
371 	u8 reg_idx;			/* holds the special value that gets
372 					 * the hardware register offset
373 					 * associated with this ring, which is
374 					 * different for DCB and RSS modes
375 					 */
376 	u16 next_to_use;
377 	u16 next_to_clean;
378 
379 	unsigned long last_rx_timestamp;
380 
381 	union {
382 		u16 next_to_alloc;
383 		struct {
384 			u8 atr_sample_rate;
385 			u8 atr_count;
386 		};
387 	};
388 
389 	u8 dcb_tc;
390 	struct ixgbe_queue_stats stats;
391 	struct u64_stats_sync syncp;
392 	union {
393 		struct ixgbe_tx_queue_stats tx_stats;
394 		struct ixgbe_rx_queue_stats rx_stats;
395 	};
396 	u16 rx_offset;
397 	struct xdp_rxq_info xdp_rxq;
398 	spinlock_t tx_lock;	/* used in XDP mode */
399 	struct xsk_buff_pool *xsk_pool;
400 	u16 ring_idx;		/* {rx,tx,xdp}_ring back reference idx */
401 	u16 rx_buf_len;
402 } ____cacheline_internodealigned_in_smp;
403 
404 enum ixgbe_ring_f_enum {
405 	RING_F_NONE = 0,
406 	RING_F_VMDQ,  /* SR-IOV uses the same ring feature */
407 	RING_F_RSS,
408 	RING_F_FDIR,
409 #ifdef IXGBE_FCOE
410 	RING_F_FCOE,
411 #endif /* IXGBE_FCOE */
412 
413 	RING_F_ARRAY_SIZE      /* must be last in enum set */
414 };
415 
416 #define IXGBE_MAX_RSS_INDICES		16
417 #define IXGBE_MAX_RSS_INDICES_X550	63
418 #define IXGBE_MAX_VMDQ_INDICES		64
419 #define IXGBE_MAX_FDIR_INDICES		63	/* based on q_vector limit */
420 #define IXGBE_MAX_FCOE_INDICES		8
421 #define MAX_RX_QUEUES			(IXGBE_MAX_FDIR_INDICES + 1)
422 #define MAX_TX_QUEUES			(IXGBE_MAX_FDIR_INDICES + 1)
423 #define IXGBE_MAX_XDP_QS		(IXGBE_MAX_FDIR_INDICES + 1)
424 #define IXGBE_MAX_L2A_QUEUES		4
425 #define IXGBE_BAD_L2A_QUEUE		3
426 #define IXGBE_MAX_MACVLANS		63
427 
428 DECLARE_STATIC_KEY_FALSE(ixgbe_xdp_locking_key);
429 
430 struct ixgbe_ring_feature {
431 	u16 limit;	/* upper limit on feature indices */
432 	u16 indices;	/* current value of indices */
433 	u16 mask;	/* Mask used for feature to ring mapping */
434 	u16 offset;	/* offset to start of feature */
435 } ____cacheline_internodealigned_in_smp;
436 
437 #define IXGBE_82599_VMDQ_8Q_MASK 0x78
438 #define IXGBE_82599_VMDQ_4Q_MASK 0x7C
439 #define IXGBE_82599_VMDQ_2Q_MASK 0x7E
440 
441 /*
442  * FCoE requires that all Rx buffers be over 2200 bytes in length.  Since
443  * this is twice the size of a half page we need to double the page order
444  * for FCoE enabled Rx queues.
445  */
446 static inline unsigned int ixgbe_rx_bufsz(struct ixgbe_ring *ring)
447 {
448 	if (test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
449 		return IXGBE_RXBUFFER_3K;
450 #if (PAGE_SIZE < 8192)
451 	if (ring_uses_build_skb(ring))
452 		return IXGBE_MAX_2K_FRAME_BUILD_SKB;
453 #endif
454 	return IXGBE_RXBUFFER_2K;
455 }
456 
457 static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
458 {
459 #if (PAGE_SIZE < 8192)
460 	if (test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
461 		return 1;
462 #endif
463 	return 0;
464 }
465 #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
466 
467 #define IXGBE_ITR_ADAPTIVE_MIN_INC	2
468 #define IXGBE_ITR_ADAPTIVE_MIN_USECS	10
469 #define IXGBE_ITR_ADAPTIVE_MAX_USECS	126
470 #define IXGBE_ITR_ADAPTIVE_LATENCY	0x80
471 #define IXGBE_ITR_ADAPTIVE_BULK		0x00
472 
473 struct ixgbe_ring_container {
474 	struct ixgbe_ring *ring;	/* pointer to linked list of rings */
475 	unsigned long next_update;	/* jiffies value of last update */
476 	unsigned int total_bytes;	/* total bytes processed this int */
477 	unsigned int total_packets;	/* total packets processed this int */
478 	u16 work_limit;			/* total work allowed per interrupt */
479 	u8 count;			/* total number of rings in vector */
480 	u8 itr;				/* current ITR setting for ring */
481 };
482 
483 /* iterator for handling rings in ring container */
484 #define ixgbe_for_each_ring(pos, head) \
485 	for (pos = (head).ring; pos != NULL; pos = pos->next)
486 
487 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
488 			      ? 8 : 1)
489 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
490 
491 /* MAX_Q_VECTORS of these are allocated,
492  * but we only use one per queue-specific vector.
493  */
494 struct ixgbe_q_vector {
495 	struct ixgbe_adapter *adapter;
496 #ifdef CONFIG_IXGBE_DCA
497 	int cpu;	    /* CPU for DCA */
498 #endif
499 	u16 v_idx;		/* index of q_vector within array, also used for
500 				 * finding the bit in EICR and friends that
501 				 * represents the vector for this ring */
502 	u16 itr;		/* Interrupt throttle rate written to EITR */
503 	struct ixgbe_ring_container rx, tx;
504 
505 	struct napi_struct napi;
506 	cpumask_t affinity_mask;
507 	int numa_node;
508 	struct rcu_head rcu;	/* to avoid race with update stats on free */
509 	char name[IFNAMSIZ + 9];
510 
511 	/* for dynamic allocation of rings associated with this q_vector */
512 	struct ixgbe_ring ring[] ____cacheline_internodealigned_in_smp;
513 };
514 
515 #ifdef CONFIG_IXGBE_HWMON
516 
517 #define IXGBE_HWMON_TYPE_LOC		0
518 #define IXGBE_HWMON_TYPE_TEMP		1
519 #define IXGBE_HWMON_TYPE_CAUTION	2
520 #define IXGBE_HWMON_TYPE_MAX		3
521 
522 struct hwmon_attr {
523 	struct device_attribute dev_attr;
524 	struct ixgbe_hw *hw;
525 	struct ixgbe_thermal_diode_data *sensor;
526 	char name[12];
527 };
528 
529 struct hwmon_buff {
530 	struct attribute_group group;
531 	const struct attribute_group *groups[2];
532 	struct attribute *attrs[IXGBE_MAX_SENSORS * 4 + 1];
533 	struct hwmon_attr hwmon_list[IXGBE_MAX_SENSORS * 4];
534 	unsigned int n_hwmon;
535 };
536 #endif /* CONFIG_IXGBE_HWMON */
537 
538 /*
539  * microsecond values for various ITR rates shifted by 2 to fit itr register
540  * with the first 3 bits reserved 0
541  */
542 #define IXGBE_MIN_RSC_ITR	24
543 #define IXGBE_100K_ITR		40
544 #define IXGBE_20K_ITR		200
545 #define IXGBE_12K_ITR		336
546 
547 /* ixgbe_test_staterr - tests bits in Rx descriptor status and error fields */
548 static inline __le32 ixgbe_test_staterr(union ixgbe_adv_rx_desc *rx_desc,
549 					const u32 stat_err_bits)
550 {
551 	return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
552 }
553 
554 static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring)
555 {
556 	u16 ntc = ring->next_to_clean;
557 	u16 ntu = ring->next_to_use;
558 
559 	return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
560 }
561 
562 #define IXGBE_RX_DESC(R, i)	    \
563 	(&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
564 #define IXGBE_TX_DESC(R, i)	    \
565 	(&(((union ixgbe_adv_tx_desc *)((R)->desc))[i]))
566 #define IXGBE_TX_CTXTDESC(R, i)	    \
567 	(&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i]))
568 
569 #define IXGBE_MAX_JUMBO_FRAME_SIZE	9728 /* Maximum Supported Size 9.5KB */
570 #ifdef IXGBE_FCOE
571 /* Use 3K as the baby jumbo frame size for FCoE */
572 #define IXGBE_FCOE_JUMBO_FRAME_SIZE       3072
573 #endif /* IXGBE_FCOE */
574 
575 #define OTHER_VECTOR 1
576 #define NON_Q_VECTORS (OTHER_VECTOR)
577 
578 #define MAX_MSIX_VECTORS_82599 64
579 #define MAX_Q_VECTORS_82599 64
580 #define MAX_MSIX_VECTORS_82598 18
581 #define MAX_Q_VECTORS_82598 16
582 
583 struct ixgbe_mac_addr {
584 	u8 addr[ETH_ALEN];
585 	u16 pool;
586 	u16 state; /* bitmask */
587 };
588 
589 #define IXGBE_MAC_STATE_DEFAULT		0x1
590 #define IXGBE_MAC_STATE_MODIFIED	0x2
591 #define IXGBE_MAC_STATE_IN_USE		0x4
592 
593 #define MAX_Q_VECTORS MAX_Q_VECTORS_82599
594 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
595 
596 #define MIN_MSIX_Q_VECTORS 1
597 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
598 
599 /* default to trying for four seconds */
600 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
601 #define IXGBE_SFP_POLL_JIFFIES (2 * HZ)	/* SFP poll every 2 seconds */
602 
603 #define IXGBE_PRIMARY_ABORT_LIMIT	5
604 
605 /* board specific private data structure */
606 struct ixgbe_adapter {
607 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
608 	/* OS defined structs */
609 	struct net_device *netdev;
610 	struct bpf_prog *xdp_prog;
611 	struct pci_dev *pdev;
612 	struct mii_bus *mii_bus;
613 
614 	unsigned long state;
615 
616 	/* Some features need tri-state capability,
617 	 * thus the additional *_CAPABLE flags.
618 	 */
619 	u32 flags;
620 #define IXGBE_FLAG_MSI_ENABLED			BIT(1)
621 #define IXGBE_FLAG_MSIX_ENABLED			BIT(3)
622 #define IXGBE_FLAG_RX_1BUF_CAPABLE		BIT(4)
623 #define IXGBE_FLAG_RX_PS_CAPABLE		BIT(5)
624 #define IXGBE_FLAG_RX_PS_ENABLED		BIT(6)
625 #define IXGBE_FLAG_DCA_ENABLED			BIT(8)
626 #define IXGBE_FLAG_DCA_CAPABLE			BIT(9)
627 #define IXGBE_FLAG_IMIR_ENABLED			BIT(10)
628 #define IXGBE_FLAG_MQ_CAPABLE			BIT(11)
629 #define IXGBE_FLAG_DCB_ENABLED			BIT(12)
630 #define IXGBE_FLAG_VMDQ_CAPABLE			BIT(13)
631 #define IXGBE_FLAG_VMDQ_ENABLED			BIT(14)
632 #define IXGBE_FLAG_FAN_FAIL_CAPABLE		BIT(15)
633 #define IXGBE_FLAG_NEED_LINK_UPDATE		BIT(16)
634 #define IXGBE_FLAG_NEED_LINK_CONFIG		BIT(17)
635 #define IXGBE_FLAG_FDIR_HASH_CAPABLE		BIT(18)
636 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE		BIT(19)
637 #define IXGBE_FLAG_FCOE_CAPABLE			BIT(20)
638 #define IXGBE_FLAG_FCOE_ENABLED			BIT(21)
639 #define IXGBE_FLAG_SRIOV_CAPABLE		BIT(22)
640 #define IXGBE_FLAG_SRIOV_ENABLED		BIT(23)
641 #define IXGBE_FLAG_RX_HWTSTAMP_ENABLED		BIT(25)
642 #define IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER	BIT(26)
643 #define IXGBE_FLAG_DCB_CAPABLE			BIT(27)
644 
645 	u32 flags2;
646 #define IXGBE_FLAG2_RSC_CAPABLE			BIT(0)
647 #define IXGBE_FLAG2_RSC_ENABLED			BIT(1)
648 #define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE		BIT(2)
649 #define IXGBE_FLAG2_TEMP_SENSOR_EVENT		BIT(3)
650 #define IXGBE_FLAG2_SEARCH_FOR_SFP		BIT(4)
651 #define IXGBE_FLAG2_SFP_NEEDS_RESET		BIT(5)
652 #define IXGBE_FLAG2_FDIR_REQUIRES_REINIT	BIT(7)
653 #define IXGBE_FLAG2_RSS_FIELD_IPV4_UDP		BIT(8)
654 #define IXGBE_FLAG2_RSS_FIELD_IPV6_UDP		BIT(9)
655 #define IXGBE_FLAG2_PTP_PPS_ENABLED		BIT(10)
656 #define IXGBE_FLAG2_PHY_INTERRUPT		BIT(11)
657 #define IXGBE_FLAG2_VLAN_PROMISC		BIT(13)
658 #define IXGBE_FLAG2_EEE_CAPABLE			BIT(14)
659 #define IXGBE_FLAG2_EEE_ENABLED			BIT(15)
660 #define IXGBE_FLAG2_RX_LEGACY			BIT(16)
661 #define IXGBE_FLAG2_IPSEC_ENABLED		BIT(17)
662 #define IXGBE_FLAG2_VF_IPSEC_ENABLED		BIT(18)
663 #define IXGBE_FLAG2_AUTO_DISABLE_VF		BIT(19)
664 
665 	/* Tx fast path data */
666 	int num_tx_queues;
667 	u16 tx_itr_setting;
668 	u16 tx_work_limit;
669 	u64 tx_ipsec;
670 
671 	/* Rx fast path data */
672 	int num_rx_queues;
673 	u16 rx_itr_setting;
674 	u64 rx_ipsec;
675 
676 	/* Port number used to identify VXLAN traffic */
677 	__be16 vxlan_port;
678 	__be16 geneve_port;
679 
680 	/* XDP */
681 	int num_xdp_queues;
682 	struct ixgbe_ring *xdp_ring[IXGBE_MAX_XDP_QS];
683 	unsigned long *af_xdp_zc_qps; /* tracks AF_XDP ZC enabled rings */
684 
685 	/* TX */
686 	struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
687 
688 	u64 restart_queue;
689 	u64 lsc_int;
690 	u32 tx_timeout_count;
691 
692 	/* RX */
693 	struct ixgbe_ring *rx_ring[MAX_RX_QUEUES];
694 	int num_rx_pools;		/* == num_rx_queues in 82598 */
695 	int num_rx_queues_per_pool;	/* 1 if 82598, can be many if 82599 */
696 	u64 hw_csum_rx_error;
697 	u64 hw_rx_no_dma_resources;
698 	u64 rsc_total_count;
699 	u64 rsc_total_flush;
700 	u64 non_eop_descs;
701 	u32 alloc_rx_page;
702 	u32 alloc_rx_page_failed;
703 	u32 alloc_rx_buff_failed;
704 
705 	struct ixgbe_q_vector *q_vector[MAX_Q_VECTORS];
706 
707 	/* DCB parameters */
708 	struct ieee_pfc *ixgbe_ieee_pfc;
709 	struct ieee_ets *ixgbe_ieee_ets;
710 	struct ixgbe_dcb_config dcb_cfg;
711 	struct ixgbe_dcb_config temp_dcb_cfg;
712 	u8 hw_tcs;
713 	u8 dcb_set_bitmap;
714 	u8 dcbx_cap;
715 	enum ixgbe_fc_mode last_lfc_mode;
716 
717 	int num_q_vectors;	/* current number of q_vectors for device */
718 	int max_q_vectors;	/* true count of q_vectors for device */
719 	struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
720 	struct msix_entry *msix_entries;
721 
722 	u32 test_icr;
723 	struct ixgbe_ring test_tx_ring;
724 	struct ixgbe_ring test_rx_ring;
725 
726 	/* structs defined in ixgbe_hw.h */
727 	struct ixgbe_hw hw;
728 	u16 msg_enable;
729 	struct ixgbe_hw_stats stats;
730 
731 	u64 tx_busy;
732 	unsigned int tx_ring_count;
733 	unsigned int xdp_ring_count;
734 	unsigned int rx_ring_count;
735 
736 	u32 link_speed;
737 	bool link_up;
738 	unsigned long sfp_poll_time;
739 	unsigned long link_check_timeout;
740 
741 	struct timer_list service_timer;
742 	struct work_struct service_task;
743 
744 	struct hlist_head fdir_filter_list;
745 	unsigned long fdir_overflow; /* number of times ATR was backed off */
746 	union ixgbe_atr_input fdir_mask;
747 	int fdir_filter_count;
748 	u32 fdir_pballoc;
749 	u32 atr_sample_rate;
750 	spinlock_t fdir_perfect_lock;
751 
752 #ifdef IXGBE_FCOE
753 	struct ixgbe_fcoe fcoe;
754 #endif /* IXGBE_FCOE */
755 	u8 __iomem *io_addr; /* Mainly for iounmap use */
756 	u32 wol;
757 
758 	u16 bridge_mode;
759 
760 	char eeprom_id[NVM_VER_SIZE];
761 	u16 eeprom_cap;
762 
763 	u32 interrupt_event;
764 	u32 led_reg;
765 
766 	struct ptp_clock *ptp_clock;
767 	struct ptp_clock_info ptp_caps;
768 	struct work_struct ptp_tx_work;
769 	struct sk_buff *ptp_tx_skb;
770 	struct hwtstamp_config tstamp_config;
771 	unsigned long ptp_tx_start;
772 	unsigned long last_overflow_check;
773 	unsigned long last_rx_ptp_check;
774 	unsigned long last_rx_timestamp;
775 	spinlock_t tmreg_lock;
776 	struct cyclecounter hw_cc;
777 	struct timecounter hw_tc;
778 	u32 base_incval;
779 	u32 tx_hwtstamp_timeouts;
780 	u32 tx_hwtstamp_skipped;
781 	u32 rx_hwtstamp_cleared;
782 	void (*ptp_setup_sdp)(struct ixgbe_adapter *);
783 
784 	/* SR-IOV */
785 	DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
786 	unsigned int num_vfs;
787 	struct vf_data_storage *vfinfo;
788 	int vf_rate_link_speed;
789 	struct vf_macvlans vf_mvs;
790 	struct vf_macvlans *mv_list;
791 
792 	u32 timer_event_accumulator;
793 	u32 vferr_refcount;
794 	struct ixgbe_mac_addr *mac_table;
795 	struct kobject *info_kobj;
796 #ifdef CONFIG_IXGBE_HWMON
797 	struct hwmon_buff *ixgbe_hwmon_buff;
798 #endif /* CONFIG_IXGBE_HWMON */
799 #ifdef CONFIG_DEBUG_FS
800 	struct dentry *ixgbe_dbg_adapter;
801 #endif /*CONFIG_DEBUG_FS*/
802 
803 	u8 default_up;
804 	/* Bitmask indicating in use pools */
805 	DECLARE_BITMAP(fwd_bitmask, IXGBE_MAX_MACVLANS + 1);
806 
807 #define IXGBE_MAX_LINK_HANDLE 10
808 	struct ixgbe_jump_table *jump_tables[IXGBE_MAX_LINK_HANDLE];
809 	unsigned long tables;
810 
811 /* maximum number of RETA entries among all devices supported by ixgbe
812  * driver: currently it's x550 device in non-SRIOV mode
813  */
814 #define IXGBE_MAX_RETA_ENTRIES 512
815 	u8 rss_indir_tbl[IXGBE_MAX_RETA_ENTRIES];
816 
817 #define IXGBE_RSS_KEY_SIZE     40  /* size of RSS Hash Key in bytes */
818 	u32 *rss_key;
819 
820 #ifdef CONFIG_IXGBE_IPSEC
821 	struct ixgbe_ipsec *ipsec;
822 #endif /* CONFIG_IXGBE_IPSEC */
823 	spinlock_t vfs_lock;
824 };
825 
826 static inline int ixgbe_determine_xdp_q_idx(int cpu)
827 {
828 	if (static_key_enabled(&ixgbe_xdp_locking_key))
829 		return cpu % IXGBE_MAX_XDP_QS;
830 	else
831 		return cpu;
832 }
833 
834 static inline
835 struct ixgbe_ring *ixgbe_determine_xdp_ring(struct ixgbe_adapter *adapter)
836 {
837 	int index = ixgbe_determine_xdp_q_idx(smp_processor_id());
838 
839 	return adapter->xdp_ring[index];
840 }
841 
842 static inline u8 ixgbe_max_rss_indices(struct ixgbe_adapter *adapter)
843 {
844 	switch (adapter->hw.mac.type) {
845 	case ixgbe_mac_82598EB:
846 	case ixgbe_mac_82599EB:
847 	case ixgbe_mac_X540:
848 		return IXGBE_MAX_RSS_INDICES;
849 	case ixgbe_mac_X550:
850 	case ixgbe_mac_X550EM_x:
851 	case ixgbe_mac_x550em_a:
852 		return IXGBE_MAX_RSS_INDICES_X550;
853 	default:
854 		return 0;
855 	}
856 }
857 
858 struct ixgbe_fdir_filter {
859 	struct hlist_node fdir_node;
860 	union ixgbe_atr_input filter;
861 	u16 sw_idx;
862 	u64 action;
863 };
864 
865 enum ixgbe_state_t {
866 	__IXGBE_TESTING,
867 	__IXGBE_RESETTING,
868 	__IXGBE_DOWN,
869 	__IXGBE_DISABLED,
870 	__IXGBE_REMOVING,
871 	__IXGBE_SERVICE_SCHED,
872 	__IXGBE_SERVICE_INITED,
873 	__IXGBE_IN_SFP_INIT,
874 	__IXGBE_PTP_RUNNING,
875 	__IXGBE_PTP_TX_IN_PROGRESS,
876 	__IXGBE_RESET_REQUESTED,
877 };
878 
879 struct ixgbe_cb {
880 	union {				/* Union defining head/tail partner */
881 		struct sk_buff *head;
882 		struct sk_buff *tail;
883 	};
884 	dma_addr_t dma;
885 	u16 append_cnt;
886 	bool page_released;
887 };
888 #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb)
889 
890 enum ixgbe_boards {
891 	board_82598,
892 	board_82599,
893 	board_X540,
894 	board_X550,
895 	board_X550EM_x,
896 	board_x550em_x_fw,
897 	board_x550em_a,
898 	board_x550em_a_fw,
899 };
900 
901 extern const struct ixgbe_info ixgbe_82598_info;
902 extern const struct ixgbe_info ixgbe_82599_info;
903 extern const struct ixgbe_info ixgbe_X540_info;
904 extern const struct ixgbe_info ixgbe_X550_info;
905 extern const struct ixgbe_info ixgbe_X550EM_x_info;
906 extern const struct ixgbe_info ixgbe_x550em_x_fw_info;
907 extern const struct ixgbe_info ixgbe_x550em_a_info;
908 extern const struct ixgbe_info ixgbe_x550em_a_fw_info;
909 #ifdef CONFIG_IXGBE_DCB
910 extern const struct dcbnl_rtnl_ops ixgbe_dcbnl_ops;
911 #endif
912 
913 extern char ixgbe_driver_name[];
914 #ifdef IXGBE_FCOE
915 extern char ixgbe_default_device_descr[];
916 #endif /* IXGBE_FCOE */
917 
918 int ixgbe_open(struct net_device *netdev);
919 int ixgbe_close(struct net_device *netdev);
920 void ixgbe_up(struct ixgbe_adapter *adapter);
921 void ixgbe_down(struct ixgbe_adapter *adapter);
922 void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
923 void ixgbe_reset(struct ixgbe_adapter *adapter);
924 void ixgbe_set_ethtool_ops(struct net_device *netdev);
925 int ixgbe_setup_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
926 int ixgbe_setup_tx_resources(struct ixgbe_ring *);
927 void ixgbe_free_rx_resources(struct ixgbe_ring *);
928 void ixgbe_free_tx_resources(struct ixgbe_ring *);
929 void ixgbe_configure_rx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
930 void ixgbe_configure_tx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
931 void ixgbe_disable_rx(struct ixgbe_adapter *adapter);
932 void ixgbe_disable_tx(struct ixgbe_adapter *adapter);
933 void ixgbe_update_stats(struct ixgbe_adapter *adapter);
934 int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
935 bool ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
936 			 u16 subdevice_id);
937 #ifdef CONFIG_PCI_IOV
938 void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter);
939 #endif
940 int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter,
941 			 const u8 *addr, u16 queue);
942 int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter,
943 			 const u8 *addr, u16 queue);
944 void ixgbe_update_pf_promisc_vlvf(struct ixgbe_adapter *adapter, u32 vid);
945 void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
946 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *, struct ixgbe_adapter *,
947 				  struct ixgbe_ring *);
948 void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
949 void ixgbe_write_eitr(struct ixgbe_q_vector *);
950 int ixgbe_poll(struct napi_struct *napi, int budget);
951 int ethtool_ioctl(struct ifreq *ifr);
952 int ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
953 int ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
954 int ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
955 int ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
956 					  union ixgbe_atr_hash_dword input,
957 					  union ixgbe_atr_hash_dword common,
958 					  u8 queue);
959 int ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
960 				    union ixgbe_atr_input *input_mask);
961 int ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
962 					  union ixgbe_atr_input *input,
963 					  u16 soft_id, u8 queue);
964 int ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
965 					  union ixgbe_atr_input *input,
966 					  u16 soft_id);
967 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
968 					  union ixgbe_atr_input *mask);
969 int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
970 				    struct ixgbe_fdir_filter *input,
971 				    u16 sw_idx);
972 void ixgbe_set_rx_mode(struct net_device *netdev);
973 #ifdef CONFIG_IXGBE_DCB
974 void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter);
975 #endif
976 int ixgbe_setup_tc(struct net_device *dev, u8 tc);
977 void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
978 void ixgbe_do_reset(struct net_device *netdev);
979 #ifdef CONFIG_IXGBE_HWMON
980 void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
981 int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
982 #endif /* CONFIG_IXGBE_HWMON */
983 #ifdef IXGBE_FCOE
984 void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
985 int ixgbe_fso(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first,
986 	      u8 *hdr_len);
987 int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
988 		   union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb);
989 int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
990 		       struct scatterlist *sgl, unsigned int sgc);
991 int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
992 			  struct scatterlist *sgl, unsigned int sgc);
993 int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
994 int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
995 void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
996 int ixgbe_fcoe_enable(struct net_device *netdev);
997 int ixgbe_fcoe_disable(struct net_device *netdev);
998 int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
999 int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
1000 			   struct netdev_fcoe_hbainfo *info);
1001 u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
1002 #endif /* IXGBE_FCOE */
1003 #ifdef CONFIG_DEBUG_FS
1004 void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
1005 void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
1006 void ixgbe_dbg_init(void);
1007 void ixgbe_dbg_exit(void);
1008 #else
1009 static inline void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter) {}
1010 static inline void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter) {}
1011 static inline void ixgbe_dbg_init(void) {}
1012 static inline void ixgbe_dbg_exit(void) {}
1013 #endif /* CONFIG_DEBUG_FS */
1014 static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
1015 {
1016 	return netdev_get_tx_queue(ring->netdev, ring->queue_index);
1017 }
1018 
1019 void ixgbe_ptp_init(struct ixgbe_adapter *adapter);
1020 void ixgbe_ptp_suspend(struct ixgbe_adapter *adapter);
1021 void ixgbe_ptp_stop(struct ixgbe_adapter *adapter);
1022 void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter);
1023 void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter);
1024 void ixgbe_ptp_tx_hang(struct ixgbe_adapter *adapter);
1025 void ixgbe_ptp_rx_pktstamp(struct ixgbe_q_vector *, struct sk_buff *);
1026 void ixgbe_ptp_rx_rgtstamp(struct ixgbe_q_vector *, struct sk_buff *skb);
1027 static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring,
1028 					 union ixgbe_adv_rx_desc *rx_desc,
1029 					 struct sk_buff *skb)
1030 {
1031 	if (unlikely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_TSIP))) {
1032 		ixgbe_ptp_rx_pktstamp(rx_ring->q_vector, skb);
1033 		return;
1034 	}
1035 
1036 	if (unlikely(!ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS)))
1037 		return;
1038 
1039 	ixgbe_ptp_rx_rgtstamp(rx_ring->q_vector, skb);
1040 
1041 	/* Update the last_rx_timestamp timer in order to enable watchdog check
1042 	 * for error case of latched timestamp on a dropped packet.
1043 	 */
1044 	rx_ring->last_rx_timestamp = jiffies;
1045 }
1046 
1047 int ixgbe_ptp_set_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr);
1048 int ixgbe_ptp_get_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr);
1049 void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
1050 void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
1051 void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter);
1052 #ifdef CONFIG_PCI_IOV
1053 void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter);
1054 #endif
1055 
1056 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
1057 				  struct ixgbe_adapter *adapter,
1058 				  struct ixgbe_ring *tx_ring);
1059 u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter);
1060 void ixgbe_store_key(struct ixgbe_adapter *adapter);
1061 void ixgbe_store_reta(struct ixgbe_adapter *adapter);
1062 int ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
1063 		       u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm);
1064 #ifdef CONFIG_IXGBE_IPSEC
1065 void ixgbe_init_ipsec_offload(struct ixgbe_adapter *adapter);
1066 void ixgbe_stop_ipsec_offload(struct ixgbe_adapter *adapter);
1067 void ixgbe_ipsec_restore(struct ixgbe_adapter *adapter);
1068 void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,
1069 		    union ixgbe_adv_rx_desc *rx_desc,
1070 		    struct sk_buff *skb);
1071 int ixgbe_ipsec_tx(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first,
1072 		   struct ixgbe_ipsec_tx_data *itd);
1073 void ixgbe_ipsec_vf_clear(struct ixgbe_adapter *adapter, u32 vf);
1074 int ixgbe_ipsec_vf_add_sa(struct ixgbe_adapter *adapter, u32 *mbuf, u32 vf);
1075 int ixgbe_ipsec_vf_del_sa(struct ixgbe_adapter *adapter, u32 *mbuf, u32 vf);
1076 #else
1077 static inline void ixgbe_init_ipsec_offload(struct ixgbe_adapter *adapter) { }
1078 static inline void ixgbe_stop_ipsec_offload(struct ixgbe_adapter *adapter) { }
1079 static inline void ixgbe_ipsec_restore(struct ixgbe_adapter *adapter) { }
1080 static inline void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,
1081 				  union ixgbe_adv_rx_desc *rx_desc,
1082 				  struct sk_buff *skb) { }
1083 static inline int ixgbe_ipsec_tx(struct ixgbe_ring *tx_ring,
1084 				 struct ixgbe_tx_buffer *first,
1085 				 struct ixgbe_ipsec_tx_data *itd) { return 0; }
1086 static inline void ixgbe_ipsec_vf_clear(struct ixgbe_adapter *adapter,
1087 					u32 vf) { }
1088 static inline int ixgbe_ipsec_vf_add_sa(struct ixgbe_adapter *adapter,
1089 					u32 *mbuf, u32 vf) { return -EACCES; }
1090 static inline int ixgbe_ipsec_vf_del_sa(struct ixgbe_adapter *adapter,
1091 					u32 *mbuf, u32 vf) { return -EACCES; }
1092 #endif /* CONFIG_IXGBE_IPSEC */
1093 
1094 static inline bool ixgbe_enabled_xdp_adapter(struct ixgbe_adapter *adapter)
1095 {
1096 	return !!adapter->xdp_prog;
1097 }
1098 
1099 #endif /* _IXGBE_H_ */
1100