1
2
3
4#ifndef _IGC_H_
5#define _IGC_H_
6
7#include <linux/kobject.h>
8#include <linux/pci.h>
9#include <linux/netdevice.h>
10#include <linux/vmalloc.h>
11#include <linux/ethtool.h>
12#include <linux/sctp.h>
13#include <linux/ptp_clock_kernel.h>
14#include <linux/timecounter.h>
15#include <linux/net_tstamp.h>
16
17#include "igc_hw.h"
18
19void igc_ethtool_set_ops(struct net_device *);
20
21
22#define IGC_MAX_RX_QUEUES 4
23#define IGC_MAX_TX_QUEUES 4
24
25#define MAX_Q_VECTORS 8
26#define MAX_STD_JUMBO_FRAME_SIZE 9216
27
28#define MAX_ETYPE_FILTER 8
29#define IGC_RETA_SIZE 128
30
31enum igc_mac_filter_type {
32 IGC_MAC_FILTER_TYPE_DST = 0,
33 IGC_MAC_FILTER_TYPE_SRC
34};
35
36struct igc_tx_queue_stats {
37 u64 packets;
38 u64 bytes;
39 u64 restart_queue;
40 u64 restart_queue2;
41};
42
43struct igc_rx_queue_stats {
44 u64 packets;
45 u64 bytes;
46 u64 drops;
47 u64 csum_err;
48 u64 alloc_failed;
49};
50
51struct igc_rx_packet_stats {
52 u64 ipv4_packets;
53 u64 ipv4e_packets;
54 u64 ipv6_packets;
55 u64 ipv6e_packets;
56 u64 tcp_packets;
57 u64 udp_packets;
58 u64 sctp_packets;
59 u64 nfs_packets;
60 u64 other_packets;
61};
62
63struct igc_ring_container {
64 struct igc_ring *ring;
65 unsigned int total_bytes;
66 unsigned int total_packets;
67 u16 work_limit;
68 u8 count;
69 u8 itr;
70};
71
72struct igc_ring {
73 struct igc_q_vector *q_vector;
74 struct net_device *netdev;
75 struct device *dev;
76 union {
77 struct igc_tx_buffer *tx_buffer_info;
78 struct igc_rx_buffer *rx_buffer_info;
79 };
80 void *desc;
81 unsigned long flags;
82 void __iomem *tail;
83 dma_addr_t dma;
84 unsigned int size;
85
86 u16 count;
87 u8 queue_index;
88 u8 reg_idx;
89 bool launchtime_enable;
90
91 u32 start_time;
92 u32 end_time;
93
94
95 u16 next_to_clean;
96 u16 next_to_use;
97 u16 next_to_alloc;
98
99 union {
100
101 struct {
102 struct igc_tx_queue_stats tx_stats;
103 struct u64_stats_sync tx_syncp;
104 struct u64_stats_sync tx_syncp2;
105 };
106
107 struct {
108 struct igc_rx_queue_stats rx_stats;
109 struct igc_rx_packet_stats pkt_stats;
110 struct u64_stats_sync rx_syncp;
111 struct sk_buff *skb;
112 };
113 };
114} ____cacheline_internodealigned_in_smp;
115
116
117struct igc_adapter {
118 struct net_device *netdev;
119
120 struct ethtool_eee eee;
121 u16 eee_advert;
122
123 unsigned long state;
124 unsigned int flags;
125 unsigned int num_q_vectors;
126
127 struct msix_entry *msix_entries;
128
129
130 u16 tx_work_limit;
131 u32 tx_timeout_count;
132 int num_tx_queues;
133 struct igc_ring *tx_ring[IGC_MAX_TX_QUEUES];
134
135
136 int num_rx_queues;
137 struct igc_ring *rx_ring[IGC_MAX_RX_QUEUES];
138
139 struct timer_list watchdog_timer;
140 struct timer_list dma_err_timer;
141 struct timer_list phy_info_timer;
142
143 u32 wol;
144 u32 en_mng_pt;
145 u16 link_speed;
146 u16 link_duplex;
147
148 u8 port_num;
149
150 u8 __iomem *io_addr;
151
152 u32 rx_itr_setting;
153 u32 tx_itr_setting;
154
155 struct work_struct reset_task;
156 struct work_struct watchdog_task;
157 struct work_struct dma_err_task;
158 bool fc_autoneg;
159
160 u8 tx_timeout_factor;
161
162 int msg_enable;
163 u32 max_frame_size;
164 u32 min_frame_size;
165
166 ktime_t base_time;
167 ktime_t cycle_time;
168
169
170 struct pci_dev *pdev;
171
172 spinlock_t stats64_lock;
173 struct rtnl_link_stats64 stats64;
174
175
176 struct igc_hw hw;
177 struct igc_hw_stats stats;
178
179 struct igc_q_vector *q_vector[MAX_Q_VECTORS];
180 u32 eims_enable_mask;
181 u32 eims_other;
182
183 u16 tx_ring_count;
184 u16 rx_ring_count;
185
186 u32 tx_hwtstamp_timeouts;
187 u32 tx_hwtstamp_skipped;
188 u32 rx_hwtstamp_cleared;
189
190 u32 rss_queues;
191 u32 rss_indir_tbl_init;
192
193
194
195
196 struct mutex nfc_rule_lock;
197 struct list_head nfc_rule_list;
198 unsigned int nfc_rule_count;
199
200 u8 rss_indir_tbl[IGC_RETA_SIZE];
201
202 unsigned long link_check_timeout;
203 struct igc_info ei;
204
205 u32 test_icr;
206
207 struct ptp_clock *ptp_clock;
208 struct ptp_clock_info ptp_caps;
209 struct work_struct ptp_tx_work;
210 struct sk_buff *ptp_tx_skb;
211 struct hwtstamp_config tstamp_config;
212 unsigned long ptp_tx_start;
213 unsigned int ptp_flags;
214
215 spinlock_t tmreg_lock;
216 struct cyclecounter cc;
217 struct timecounter tc;
218 struct timespec64 prev_ptp_time;
219 ktime_t ptp_reset_start;
220};
221
222void igc_up(struct igc_adapter *adapter);
223void igc_down(struct igc_adapter *adapter);
224int igc_open(struct net_device *netdev);
225int igc_close(struct net_device *netdev);
226int igc_setup_tx_resources(struct igc_ring *ring);
227int igc_setup_rx_resources(struct igc_ring *ring);
228void igc_free_tx_resources(struct igc_ring *ring);
229void igc_free_rx_resources(struct igc_ring *ring);
230unsigned int igc_get_max_rss_queues(struct igc_adapter *adapter);
231void igc_set_flag_queue_pairs(struct igc_adapter *adapter,
232 const u32 max_rss_queues);
233int igc_reinit_queues(struct igc_adapter *adapter);
234void igc_write_rss_indir_tbl(struct igc_adapter *adapter);
235bool igc_has_link(struct igc_adapter *adapter);
236void igc_reset(struct igc_adapter *adapter);
237int igc_set_spd_dplx(struct igc_adapter *adapter, u32 spd, u8 dplx);
238void igc_update_stats(struct igc_adapter *adapter);
239
240
241void igc_rings_dump(struct igc_adapter *adapter);
242void igc_regs_dump(struct igc_adapter *adapter);
243
244extern char igc_driver_name[];
245
246#define IGC_REGS_LEN 740
247
248
249#define IGC_PTP_ENABLED BIT(0)
250
251
252#define IGC_FLAG_HAS_MSI BIT(0)
253#define IGC_FLAG_QUEUE_PAIRS BIT(3)
254#define IGC_FLAG_DMAC BIT(4)
255#define IGC_FLAG_PTP BIT(8)
256#define IGC_FLAG_WOL_SUPPORTED BIT(8)
257#define IGC_FLAG_NEED_LINK_UPDATE BIT(9)
258#define IGC_FLAG_MEDIA_RESET BIT(10)
259#define IGC_FLAG_MAS_ENABLE BIT(12)
260#define IGC_FLAG_HAS_MSIX BIT(13)
261#define IGC_FLAG_EEE BIT(14)
262#define IGC_FLAG_VLAN_PROMISC BIT(15)
263#define IGC_FLAG_RX_LEGACY BIT(16)
264#define IGC_FLAG_TSN_QBV_ENABLED BIT(17)
265
266#define IGC_FLAG_RSS_FIELD_IPV4_UDP BIT(6)
267#define IGC_FLAG_RSS_FIELD_IPV6_UDP BIT(7)
268
269#define IGC_MRQC_ENABLE_RSS_MQ 0x00000002
270#define IGC_MRQC_RSS_FIELD_IPV4_UDP 0x00400000
271#define IGC_MRQC_RSS_FIELD_IPV6_UDP 0x00800000
272
273
274#define IGC_START_ITR 648
275#define IGC_4K_ITR 980
276#define IGC_20K_ITR 196
277#define IGC_70K_ITR 56
278
279#define IGC_DEFAULT_ITR 3
280#define IGC_MAX_ITR_USECS 10000
281#define IGC_MIN_ITR_USECS 10
282#define NON_Q_VECTORS 1
283#define MAX_MSIX_ENTRIES 10
284
285
286#define IGC_DEFAULT_TXD 256
287#define IGC_DEFAULT_TX_WORK 128
288#define IGC_MIN_TXD 80
289#define IGC_MAX_TXD 4096
290
291#define IGC_DEFAULT_RXD 256
292#define IGC_MIN_RXD 80
293#define IGC_MAX_RXD 4096
294
295
296#define IGC_RXBUFFER_256 256
297#define IGC_RXBUFFER_2048 2048
298#define IGC_RXBUFFER_3072 3072
299
300#define AUTO_ALL_MODES 0
301#define IGC_RX_HDR_LEN IGC_RXBUFFER_256
302
303
304#define IGC_I225_TX_LATENCY_10 240
305#define IGC_I225_TX_LATENCY_100 58
306#define IGC_I225_TX_LATENCY_1000 80
307#define IGC_I225_TX_LATENCY_2500 1325
308#define IGC_I225_RX_LATENCY_10 6450
309#define IGC_I225_RX_LATENCY_100 185
310#define IGC_I225_RX_LATENCY_1000 300
311#define IGC_I225_RX_LATENCY_2500 1485
312
313
314
315
316
317
318
319
320
321
322
323
324#define IGC_RX_PTHRESH 8
325#define IGC_RX_HTHRESH 8
326#define IGC_TX_PTHRESH 8
327#define IGC_TX_HTHRESH 1
328#define IGC_RX_WTHRESH 4
329#define IGC_TX_WTHRESH 16
330
331#define IGC_RX_DMA_ATTR \
332 (DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING)
333
334#define IGC_TS_HDR_LEN 16
335
336#define IGC_SKB_PAD (NET_SKB_PAD + NET_IP_ALIGN)
337
338#if (PAGE_SIZE < 8192)
339#define IGC_MAX_FRAME_BUILD_SKB \
340 (SKB_WITH_OVERHEAD(IGC_RXBUFFER_2048) - IGC_SKB_PAD - IGC_TS_HDR_LEN)
341#else
342#define IGC_MAX_FRAME_BUILD_SKB (IGC_RXBUFFER_2048 - IGC_TS_HDR_LEN)
343#endif
344
345
346#define IGC_RX_BUFFER_WRITE 16
347
348
349#define IGC_TX_FLAGS_VLAN_MASK 0xffff0000
350
351
352static inline __le32 igc_test_staterr(union igc_adv_rx_desc *rx_desc,
353 const u32 stat_err_bits)
354{
355 return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
356}
357
358enum igc_state_t {
359 __IGC_TESTING,
360 __IGC_RESETTING,
361 __IGC_DOWN,
362 __IGC_PTP_TX_IN_PROGRESS,
363};
364
365enum igc_tx_flags {
366
367 IGC_TX_FLAGS_VLAN = 0x01,
368 IGC_TX_FLAGS_TSO = 0x02,
369 IGC_TX_FLAGS_TSTAMP = 0x04,
370
371
372 IGC_TX_FLAGS_IPV4 = 0x10,
373 IGC_TX_FLAGS_CSUM = 0x20,
374};
375
376enum igc_boards {
377 board_base,
378};
379
380
381
382
383#define IGC_MAX_TXD_PWR 15
384#define IGC_MAX_DATA_PER_TXD BIT(IGC_MAX_TXD_PWR)
385
386
387#define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IGC_MAX_DATA_PER_TXD)
388#define DESC_NEEDED (MAX_SKB_FRAGS + 4)
389
390
391
392
393struct igc_tx_buffer {
394 union igc_adv_tx_desc *next_to_watch;
395 unsigned long time_stamp;
396 struct sk_buff *skb;
397 unsigned int bytecount;
398 u16 gso_segs;
399 __be16 protocol;
400
401 DEFINE_DMA_UNMAP_ADDR(dma);
402 DEFINE_DMA_UNMAP_LEN(len);
403 u32 tx_flags;
404};
405
406struct igc_rx_buffer {
407 dma_addr_t dma;
408 struct page *page;
409#if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536)
410 __u32 page_offset;
411#else
412 __u16 page_offset;
413#endif
414 __u16 pagecnt_bias;
415};
416
417struct igc_q_vector {
418 struct igc_adapter *adapter;
419 void __iomem *itr_register;
420 u32 eims_value;
421
422 u16 itr_val;
423 u8 set_itr;
424
425 struct igc_ring_container rx, tx;
426
427 struct napi_struct napi;
428
429 struct rcu_head rcu;
430 char name[IFNAMSIZ + 9];
431 struct net_device poll_dev;
432
433
434 struct igc_ring ring[] ____cacheline_internodealigned_in_smp;
435};
436
437enum igc_filter_match_flags {
438 IGC_FILTER_FLAG_ETHER_TYPE = 0x1,
439 IGC_FILTER_FLAG_VLAN_TCI = 0x2,
440 IGC_FILTER_FLAG_SRC_MAC_ADDR = 0x4,
441 IGC_FILTER_FLAG_DST_MAC_ADDR = 0x8,
442};
443
444struct igc_nfc_filter {
445 u8 match_flags;
446 u16 etype;
447 u16 vlan_tci;
448 u8 src_addr[ETH_ALEN];
449 u8 dst_addr[ETH_ALEN];
450};
451
452struct igc_nfc_rule {
453 struct list_head list;
454 struct igc_nfc_filter filter;
455 u32 location;
456 u16 action;
457};
458
459
460
461
462#define IGC_MAX_RXNFC_RULES 32
463
464
465static inline u16 igc_desc_unused(const struct igc_ring *ring)
466{
467 u16 ntc = ring->next_to_clean;
468 u16 ntu = ring->next_to_use;
469
470 return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
471}
472
473static inline s32 igc_get_phy_info(struct igc_hw *hw)
474{
475 if (hw->phy.ops.get_phy_info)
476 return hw->phy.ops.get_phy_info(hw);
477
478 return 0;
479}
480
481static inline s32 igc_reset_phy(struct igc_hw *hw)
482{
483 if (hw->phy.ops.reset)
484 return hw->phy.ops.reset(hw);
485
486 return 0;
487}
488
489static inline struct netdev_queue *txring_txq(const struct igc_ring *tx_ring)
490{
491 return netdev_get_tx_queue(tx_ring->netdev, tx_ring->queue_index);
492}
493
494enum igc_ring_flags_t {
495 IGC_RING_FLAG_RX_3K_BUFFER,
496 IGC_RING_FLAG_RX_BUILD_SKB_ENABLED,
497 IGC_RING_FLAG_RX_SCTP_CSUM,
498 IGC_RING_FLAG_RX_LB_VLAN_BSWAP,
499 IGC_RING_FLAG_TX_CTX_IDX,
500 IGC_RING_FLAG_TX_DETECT_HANG
501};
502
503#define ring_uses_large_buffer(ring) \
504 test_bit(IGC_RING_FLAG_RX_3K_BUFFER, &(ring)->flags)
505
506#define ring_uses_build_skb(ring) \
507 test_bit(IGC_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags)
508
509static inline unsigned int igc_rx_bufsz(struct igc_ring *ring)
510{
511#if (PAGE_SIZE < 8192)
512 if (ring_uses_large_buffer(ring))
513 return IGC_RXBUFFER_3072;
514
515 if (ring_uses_build_skb(ring))
516 return IGC_MAX_FRAME_BUILD_SKB + IGC_TS_HDR_LEN;
517#endif
518 return IGC_RXBUFFER_2048;
519}
520
521static inline unsigned int igc_rx_pg_order(struct igc_ring *ring)
522{
523#if (PAGE_SIZE < 8192)
524 if (ring_uses_large_buffer(ring))
525 return 1;
526#endif
527 return 0;
528}
529
530static inline s32 igc_read_phy_reg(struct igc_hw *hw, u32 offset, u16 *data)
531{
532 if (hw->phy.ops.read_reg)
533 return hw->phy.ops.read_reg(hw, offset, data);
534
535 return 0;
536}
537
538void igc_reinit_locked(struct igc_adapter *);
539struct igc_nfc_rule *igc_get_nfc_rule(struct igc_adapter *adapter,
540 u32 location);
541int igc_add_nfc_rule(struct igc_adapter *adapter, struct igc_nfc_rule *rule);
542void igc_del_nfc_rule(struct igc_adapter *adapter, struct igc_nfc_rule *rule);
543
544void igc_ptp_init(struct igc_adapter *adapter);
545void igc_ptp_reset(struct igc_adapter *adapter);
546void igc_ptp_suspend(struct igc_adapter *adapter);
547void igc_ptp_stop(struct igc_adapter *adapter);
548void igc_ptp_rx_pktstamp(struct igc_q_vector *q_vector, void *va,
549 struct sk_buff *skb);
550int igc_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr);
551int igc_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr);
552void igc_ptp_tx_hang(struct igc_adapter *adapter);
553void igc_ptp_read(struct igc_adapter *adapter, struct timespec64 *ts);
554
555#define igc_rx_pg_size(_ring) (PAGE_SIZE << igc_rx_pg_order(_ring))
556
557#define IGC_TXD_DCMD (IGC_ADVTXD_DCMD_EOP | IGC_ADVTXD_DCMD_RS)
558
559#define IGC_RX_DESC(R, i) \
560 (&(((union igc_adv_rx_desc *)((R)->desc))[i]))
561#define IGC_TX_DESC(R, i) \
562 (&(((union igc_adv_tx_desc *)((R)->desc))[i]))
563#define IGC_TX_CTXTDESC(R, i) \
564 (&(((struct igc_adv_tx_context_desc *)((R)->desc))[i]))
565
566#endif
567