1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
7 #include <linux/bitops.h>
8 #include <linux/types.h>
10 #include <linux/netdevice.h>
11 #include <linux/cpumask.h>
12 #include <linux/aer.h>
13 #include <linux/if_vlan.h>
14 #include <linux/jiffies.h>
15 #include <linux/phy.h>
17 #include <linux/timecounter.h>
18 #include <linux/net_tstamp.h>
19 #include <linux/ptp_clock_kernel.h>
21 #include "ixgbe_type.h"
22 #include "ixgbe_common.h"
23 #include "ixgbe_dcb.h"
24 #if IS_ENABLED(CONFIG_FCOE)
26 #include "ixgbe_fcoe.h"
27 #endif /* IS_ENABLED(CONFIG_FCOE) */
28 #ifdef CONFIG_IXGBE_DCA
29 #include <linux/dca.h>
31 #include "ixgbe_ipsec.h"
35 /* common prefix used by pr_<> macros */
37 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
39 /* TX/RX descriptor defines */
40 #define IXGBE_DEFAULT_TXD 512
41 #define IXGBE_DEFAULT_TX_WORK 256
42 #define IXGBE_MAX_TXD 4096
43 #define IXGBE_MIN_TXD 64
45 #if (PAGE_SIZE < 8192)
46 #define IXGBE_DEFAULT_RXD 512
48 #define IXGBE_DEFAULT_RXD 128
50 #define IXGBE_MAX_RXD 4096
51 #define IXGBE_MIN_RXD 64
54 #define IXGBE_MIN_FCRTL 0x40
55 #define IXGBE_MAX_FCRTL 0x7FF80
56 #define IXGBE_MIN_FCRTH 0x600
57 #define IXGBE_MAX_FCRTH 0x7FFF0
58 #define IXGBE_DEFAULT_FCPAUSE 0xFFFF
59 #define IXGBE_MIN_FCPAUSE 0
60 #define IXGBE_MAX_FCPAUSE 0xFFFF
62 /* Supported Rx Buffer Sizes */
63 #define IXGBE_RXBUFFER_256 256 /* Used for skb receive header */
64 #define IXGBE_RXBUFFER_1536 1536
65 #define IXGBE_RXBUFFER_2K 2048
66 #define IXGBE_RXBUFFER_3K 3072
67 #define IXGBE_RXBUFFER_4K 4096
68 #define IXGBE_MAX_RXBUFFER 16384 /* largest size for a single descriptor */
70 /* Attempt to maximize the headroom available for incoming frames. We
71 * use a 2K buffer for receives and need 1536/1534 to store the data for
72 * the frame. This leaves us with 512 bytes of room. From that we need
73 * to deduct the space needed for the shared info and the padding needed
74 * to IP align the frame.
76 * Note: For cache line sizes 256 or larger this value is going to end
77 * up negative. In these cases we should fall back to the 3K
80 #if (PAGE_SIZE < 8192)
81 #define IXGBE_MAX_2K_FRAME_BUILD_SKB (IXGBE_RXBUFFER_1536 - NET_IP_ALIGN)
82 #define IXGBE_2K_TOO_SMALL_WITH_PADDING \
83 ((NET_SKB_PAD + IXGBE_RXBUFFER_1536) > SKB_WITH_OVERHEAD(IXGBE_RXBUFFER_2K))
85 static inline int ixgbe_compute_pad(int rx_buf_len)
87 int page_size, pad_size;
89 page_size = ALIGN(rx_buf_len, PAGE_SIZE / 2);
90 pad_size = SKB_WITH_OVERHEAD(page_size) - rx_buf_len;
95 static inline int ixgbe_skb_pad(void)
99 /* If a 2K buffer cannot handle a standard Ethernet frame then
100 * optimize padding for a 3K buffer instead of a 1.5K buffer.
102 * For a 3K buffer we need to add enough padding to allow for
103 * tailroom due to NET_IP_ALIGN possibly shifting us out of
104 * cache-line alignment.
106 if (IXGBE_2K_TOO_SMALL_WITH_PADDING)
107 rx_buf_len = IXGBE_RXBUFFER_3K + SKB_DATA_ALIGN(NET_IP_ALIGN);
109 rx_buf_len = IXGBE_RXBUFFER_1536;
111 /* if needed make room for NET_IP_ALIGN */
112 rx_buf_len -= NET_IP_ALIGN;
114 return ixgbe_compute_pad(rx_buf_len);
117 #define IXGBE_SKB_PAD ixgbe_skb_pad()
119 #define IXGBE_SKB_PAD (NET_SKB_PAD + NET_IP_ALIGN)
123 * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN means we
124 * reserve 64 more, and skb_shared_info adds an additional 320 bytes more,
125 * this adds up to 448 bytes of extra data.
127 * Since netdev_alloc_skb now allocates a page fragment we can use a value
128 * of 256 and the resultant skb will have a truesize of 960 or less.
130 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
132 /* How many Rx Buffers do we bundle into one write to the hardware ? */
133 #define IXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */
135 #define IXGBE_RX_DMA_ATTR \
136 (DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING)
138 enum ixgbe_tx_flags {
140 IXGBE_TX_FLAGS_HW_VLAN = 0x01,
141 IXGBE_TX_FLAGS_TSO = 0x02,
142 IXGBE_TX_FLAGS_TSTAMP = 0x04,
145 IXGBE_TX_FLAGS_CC = 0x08,
146 IXGBE_TX_FLAGS_IPV4 = 0x10,
147 IXGBE_TX_FLAGS_CSUM = 0x20,
148 IXGBE_TX_FLAGS_IPSEC = 0x40,
150 /* software defined flags */
151 IXGBE_TX_FLAGS_SW_VLAN = 0x80,
152 IXGBE_TX_FLAGS_FCOE = 0x100,
156 #define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
157 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000
158 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29
159 #define IXGBE_TX_FLAGS_VLAN_SHIFT 16
161 #define IXGBE_MAX_VF_MC_ENTRIES 30
162 #define IXGBE_MAX_VF_FUNCTIONS 64
163 #define IXGBE_MAX_VFTA_ENTRIES 128
164 #define MAX_EMULATION_MAC_ADDRS 16
165 #define IXGBE_MAX_PF_MACVLANS 15
166 #define VMDQ_P(p) ((p) + adapter->ring_feature[RING_F_VMDQ].offset)
167 #define IXGBE_82599_VF_DEVICE_ID 0x10ED
168 #define IXGBE_X540_VF_DEVICE_ID 0x1515
170 struct vf_data_storage {
171 struct pci_dev *vfdev;
172 unsigned char vf_mac_addresses[ETH_ALEN];
173 u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
174 u16 num_vf_mc_hashes;
177 u16 pf_vlan; /* When set, guest VLAN config not allowed. */
181 bool rss_query_enabled;
187 enum ixgbevf_xcast_modes {
188 IXGBEVF_XCAST_MODE_NONE = 0,
189 IXGBEVF_XCAST_MODE_MULTI,
190 IXGBEVF_XCAST_MODE_ALLMULTI,
191 IXGBEVF_XCAST_MODE_PROMISC,
199 u8 vf_macvlan[ETH_ALEN];
202 #define IXGBE_MAX_TXD_PWR 14
203 #define IXGBE_MAX_DATA_PER_TXD (1u << IXGBE_MAX_TXD_PWR)
205 /* Tx Descriptors needed, worst case */
206 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IXGBE_MAX_DATA_PER_TXD)
207 #define DESC_NEEDED (MAX_SKB_FRAGS + 4)
209 /* wrapper around a pointer to a socket buffer,
210 * so a DMA handle can be stored along with the buffer */
211 struct ixgbe_tx_buffer {
212 union ixgbe_adv_tx_desc *next_to_watch;
213 unsigned long time_stamp;
216 struct xdp_frame *xdpf;
218 unsigned int bytecount;
219 unsigned short gso_segs;
221 DEFINE_DMA_UNMAP_ADDR(dma);
222 DEFINE_DMA_UNMAP_LEN(len);
226 struct ixgbe_rx_buffer {
242 struct ixgbe_queue_stats {
247 struct ixgbe_tx_queue_stats {
253 struct ixgbe_rx_queue_stats {
258 u64 alloc_rx_page_failed;
259 u64 alloc_rx_buff_failed;
263 #define IXGBE_TS_HDR_LEN 8
265 enum ixgbe_ring_state_t {
266 __IXGBE_RX_3K_BUFFER,
267 __IXGBE_RX_BUILD_SKB_ENABLED,
268 __IXGBE_RX_RSC_ENABLED,
269 __IXGBE_RX_CSUM_UDP_ZERO_ERR,
271 __IXGBE_TX_FDIR_INIT_DONE,
272 __IXGBE_TX_XPS_INIT_DONE,
273 __IXGBE_TX_DETECT_HANG,
274 __IXGBE_HANG_CHECK_ARMED,
279 #define ring_uses_build_skb(ring) \
280 test_bit(__IXGBE_RX_BUILD_SKB_ENABLED, &(ring)->state)
282 struct ixgbe_fwd_adapter {
283 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
284 struct net_device *netdev;
285 unsigned int tx_base_queue;
286 unsigned int rx_base_queue;
290 #define check_for_tx_hang(ring) \
291 test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
292 #define set_check_for_tx_hang(ring) \
293 set_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
294 #define clear_check_for_tx_hang(ring) \
295 clear_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
296 #define ring_is_rsc_enabled(ring) \
297 test_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
298 #define set_ring_rsc_enabled(ring) \
299 set_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
300 #define clear_ring_rsc_enabled(ring) \
301 clear_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
302 #define ring_is_xdp(ring) \
303 test_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
304 #define set_ring_xdp(ring) \
305 set_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
306 #define clear_ring_xdp(ring) \
307 clear_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
309 struct ixgbe_ring *next; /* pointer to next ring in q_vector */
310 struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */
311 struct net_device *netdev; /* netdev ring belongs to */
312 struct bpf_prog *xdp_prog;
313 struct device *dev; /* device for DMA mapping */
314 void *desc; /* descriptor ring memory */
316 struct ixgbe_tx_buffer *tx_buffer_info;
317 struct ixgbe_rx_buffer *rx_buffer_info;
321 dma_addr_t dma; /* phys. address of descriptor ring */
322 unsigned int size; /* length in bytes */
324 u16 count; /* amount of descriptors */
326 u8 queue_index; /* needed for multiqueue queue management */
327 u8 reg_idx; /* holds the special value that gets
328 * the hardware register offset
329 * associated with this ring, which is
330 * different for DCB and RSS modes
335 unsigned long last_rx_timestamp;
346 struct ixgbe_queue_stats stats;
347 struct u64_stats_sync syncp;
349 struct ixgbe_tx_queue_stats tx_stats;
350 struct ixgbe_rx_queue_stats rx_stats;
352 struct xdp_rxq_info xdp_rxq;
353 struct xdp_umem *xsk_umem;
354 struct zero_copy_allocator zca; /* ZC allocator anchor */
355 u16 ring_idx; /* {rx,tx,xdp}_ring back reference idx */
357 } ____cacheline_internodealigned_in_smp;
359 enum ixgbe_ring_f_enum {
361 RING_F_VMDQ, /* SR-IOV uses the same ring feature */
366 #endif /* IXGBE_FCOE */
368 RING_F_ARRAY_SIZE /* must be last in enum set */
371 #define IXGBE_MAX_RSS_INDICES 16
372 #define IXGBE_MAX_RSS_INDICES_X550 63
373 #define IXGBE_MAX_VMDQ_INDICES 64
374 #define IXGBE_MAX_FDIR_INDICES 63 /* based on q_vector limit */
375 #define IXGBE_MAX_FCOE_INDICES 8
376 #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
377 #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
378 #define MAX_XDP_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
379 #define IXGBE_MAX_L2A_QUEUES 4
380 #define IXGBE_BAD_L2A_QUEUE 3
381 #define IXGBE_MAX_MACVLANS 63
383 struct ixgbe_ring_feature {
384 u16 limit; /* upper limit on feature indices */
385 u16 indices; /* current value of indices */
386 u16 mask; /* Mask used for feature to ring mapping */
387 u16 offset; /* offset to start of feature */
388 } ____cacheline_internodealigned_in_smp;
390 #define IXGBE_82599_VMDQ_8Q_MASK 0x78
391 #define IXGBE_82599_VMDQ_4Q_MASK 0x7C
392 #define IXGBE_82599_VMDQ_2Q_MASK 0x7E
395 * FCoE requires that all Rx buffers be over 2200 bytes in length. Since
396 * this is twice the size of a half page we need to double the page order
397 * for FCoE enabled Rx queues.
399 static inline unsigned int ixgbe_rx_bufsz(struct ixgbe_ring *ring)
401 if (test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
402 return IXGBE_RXBUFFER_3K;
403 #if (PAGE_SIZE < 8192)
404 if (ring_uses_build_skb(ring))
405 return IXGBE_MAX_2K_FRAME_BUILD_SKB;
407 return IXGBE_RXBUFFER_2K;
410 static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
412 #if (PAGE_SIZE < 8192)
413 if (test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
418 #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
420 #define IXGBE_ITR_ADAPTIVE_MIN_INC 2
421 #define IXGBE_ITR_ADAPTIVE_MIN_USECS 10
422 #define IXGBE_ITR_ADAPTIVE_MAX_USECS 126
423 #define IXGBE_ITR_ADAPTIVE_LATENCY 0x80
424 #define IXGBE_ITR_ADAPTIVE_BULK 0x00
426 struct ixgbe_ring_container {
427 struct ixgbe_ring *ring; /* pointer to linked list of rings */
428 unsigned long next_update; /* jiffies value of last update */
429 unsigned int total_bytes; /* total bytes processed this int */
430 unsigned int total_packets; /* total packets processed this int */
431 u16 work_limit; /* total work allowed per interrupt */
432 u8 count; /* total number of rings in vector */
433 u8 itr; /* current ITR setting for ring */
436 /* iterator for handling rings in ring container */
437 #define ixgbe_for_each_ring(pos, head) \
438 for (pos = (head).ring; pos != NULL; pos = pos->next)
440 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
442 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
444 /* MAX_Q_VECTORS of these are allocated,
445 * but we only use one per queue-specific vector.
447 struct ixgbe_q_vector {
448 struct ixgbe_adapter *adapter;
449 #ifdef CONFIG_IXGBE_DCA
450 int cpu; /* CPU for DCA */
452 u16 v_idx; /* index of q_vector within array, also used for
453 * finding the bit in EICR and friends that
454 * represents the vector for this ring */
455 u16 itr; /* Interrupt throttle rate written to EITR */
456 struct ixgbe_ring_container rx, tx;
458 struct napi_struct napi;
459 cpumask_t affinity_mask;
461 struct rcu_head rcu; /* to avoid race with update stats on free */
462 char name[IFNAMSIZ + 9];
464 /* for dynamic allocation of rings associated with this q_vector */
465 struct ixgbe_ring ring[] ____cacheline_internodealigned_in_smp;
468 #ifdef CONFIG_IXGBE_HWMON
470 #define IXGBE_HWMON_TYPE_LOC 0
471 #define IXGBE_HWMON_TYPE_TEMP 1
472 #define IXGBE_HWMON_TYPE_CAUTION 2
473 #define IXGBE_HWMON_TYPE_MAX 3
476 struct device_attribute dev_attr;
478 struct ixgbe_thermal_diode_data *sensor;
483 struct attribute_group group;
484 const struct attribute_group *groups[2];
485 struct attribute *attrs[IXGBE_MAX_SENSORS * 4 + 1];
486 struct hwmon_attr hwmon_list[IXGBE_MAX_SENSORS * 4];
487 unsigned int n_hwmon;
489 #endif /* CONFIG_IXGBE_HWMON */
492 * microsecond values for various ITR rates shifted by 2 to fit itr register
493 * with the first 3 bits reserved 0
495 #define IXGBE_MIN_RSC_ITR 24
496 #define IXGBE_100K_ITR 40
497 #define IXGBE_20K_ITR 200
498 #define IXGBE_12K_ITR 336
500 /* ixgbe_test_staterr - tests bits in Rx descriptor status and error fields */
501 static inline __le32 ixgbe_test_staterr(union ixgbe_adv_rx_desc *rx_desc,
502 const u32 stat_err_bits)
504 return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
507 static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring)
509 u16 ntc = ring->next_to_clean;
510 u16 ntu = ring->next_to_use;
512 return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
515 #define IXGBE_RX_DESC(R, i) \
516 (&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
517 #define IXGBE_TX_DESC(R, i) \
518 (&(((union ixgbe_adv_tx_desc *)((R)->desc))[i]))
519 #define IXGBE_TX_CTXTDESC(R, i) \
520 (&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i]))
522 #define IXGBE_MAX_JUMBO_FRAME_SIZE 9728 /* Maximum Supported Size 9.5KB */
524 /* Use 3K as the baby jumbo frame size for FCoE */
525 #define IXGBE_FCOE_JUMBO_FRAME_SIZE 3072
526 #endif /* IXGBE_FCOE */
528 #define OTHER_VECTOR 1
529 #define NON_Q_VECTORS (OTHER_VECTOR)
531 #define MAX_MSIX_VECTORS_82599 64
532 #define MAX_Q_VECTORS_82599 64
533 #define MAX_MSIX_VECTORS_82598 18
534 #define MAX_Q_VECTORS_82598 16
536 struct ixgbe_mac_addr {
539 u16 state; /* bitmask */
542 #define IXGBE_MAC_STATE_DEFAULT 0x1
543 #define IXGBE_MAC_STATE_MODIFIED 0x2
544 #define IXGBE_MAC_STATE_IN_USE 0x4
546 #define MAX_Q_VECTORS MAX_Q_VECTORS_82599
547 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
549 #define MIN_MSIX_Q_VECTORS 1
550 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
552 /* default to trying for four seconds */
553 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
554 #define IXGBE_SFP_POLL_JIFFIES (2 * HZ) /* SFP poll every 2 seconds */
556 /* board specific private data structure */
557 struct ixgbe_adapter {
558 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
559 /* OS defined structs */
560 struct net_device *netdev;
561 struct bpf_prog *xdp_prog;
562 struct pci_dev *pdev;
563 struct mii_bus *mii_bus;
567 /* Some features need tri-state capability,
568 * thus the additional *_CAPABLE flags.
571 #define IXGBE_FLAG_MSI_ENABLED BIT(1)
572 #define IXGBE_FLAG_MSIX_ENABLED BIT(3)
573 #define IXGBE_FLAG_RX_1BUF_CAPABLE BIT(4)
574 #define IXGBE_FLAG_RX_PS_CAPABLE BIT(5)
575 #define IXGBE_FLAG_RX_PS_ENABLED BIT(6)
576 #define IXGBE_FLAG_DCA_ENABLED BIT(8)
577 #define IXGBE_FLAG_DCA_CAPABLE BIT(9)
578 #define IXGBE_FLAG_IMIR_ENABLED BIT(10)
579 #define IXGBE_FLAG_MQ_CAPABLE BIT(11)
580 #define IXGBE_FLAG_DCB_ENABLED BIT(12)
581 #define IXGBE_FLAG_VMDQ_CAPABLE BIT(13)
582 #define IXGBE_FLAG_VMDQ_ENABLED BIT(14)
583 #define IXGBE_FLAG_FAN_FAIL_CAPABLE BIT(15)
584 #define IXGBE_FLAG_NEED_LINK_UPDATE BIT(16)
585 #define IXGBE_FLAG_NEED_LINK_CONFIG BIT(17)
586 #define IXGBE_FLAG_FDIR_HASH_CAPABLE BIT(18)
587 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE BIT(19)
588 #define IXGBE_FLAG_FCOE_CAPABLE BIT(20)
589 #define IXGBE_FLAG_FCOE_ENABLED BIT(21)
590 #define IXGBE_FLAG_SRIOV_CAPABLE BIT(22)
591 #define IXGBE_FLAG_SRIOV_ENABLED BIT(23)
592 #define IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE BIT(24)
593 #define IXGBE_FLAG_RX_HWTSTAMP_ENABLED BIT(25)
594 #define IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER BIT(26)
595 #define IXGBE_FLAG_DCB_CAPABLE BIT(27)
596 #define IXGBE_FLAG_GENEVE_OFFLOAD_CAPABLE BIT(28)
599 #define IXGBE_FLAG2_RSC_CAPABLE BIT(0)
600 #define IXGBE_FLAG2_RSC_ENABLED BIT(1)
601 #define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE BIT(2)
602 #define IXGBE_FLAG2_TEMP_SENSOR_EVENT BIT(3)
603 #define IXGBE_FLAG2_SEARCH_FOR_SFP BIT(4)
604 #define IXGBE_FLAG2_SFP_NEEDS_RESET BIT(5)
605 #define IXGBE_FLAG2_FDIR_REQUIRES_REINIT BIT(7)
606 #define IXGBE_FLAG2_RSS_FIELD_IPV4_UDP BIT(8)
607 #define IXGBE_FLAG2_RSS_FIELD_IPV6_UDP BIT(9)
608 #define IXGBE_FLAG2_PTP_PPS_ENABLED BIT(10)
609 #define IXGBE_FLAG2_PHY_INTERRUPT BIT(11)
610 #define IXGBE_FLAG2_UDP_TUN_REREG_NEEDED BIT(12)
611 #define IXGBE_FLAG2_VLAN_PROMISC BIT(13)
612 #define IXGBE_FLAG2_EEE_CAPABLE BIT(14)
613 #define IXGBE_FLAG2_EEE_ENABLED BIT(15)
614 #define IXGBE_FLAG2_RX_LEGACY BIT(16)
615 #define IXGBE_FLAG2_IPSEC_ENABLED BIT(17)
616 #define IXGBE_FLAG2_VF_IPSEC_ENABLED BIT(18)
618 /* Tx fast path data */
624 /* Rx fast path data */
629 /* Port number used to identify VXLAN traffic */
635 struct ixgbe_ring *xdp_ring[MAX_XDP_QUEUES];
636 unsigned long *af_xdp_zc_qps; /* tracks AF_XDP ZC enabled rings */
639 struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
643 u32 tx_timeout_count;
646 struct ixgbe_ring *rx_ring[MAX_RX_QUEUES];
647 int num_rx_pools; /* == num_rx_queues in 82598 */
648 int num_rx_queues_per_pool; /* 1 if 82598, can be many if 82599 */
649 u64 hw_csum_rx_error;
650 u64 hw_rx_no_dma_resources;
655 u32 alloc_rx_page_failed;
656 u32 alloc_rx_buff_failed;
658 struct ixgbe_q_vector *q_vector[MAX_Q_VECTORS];
661 struct ieee_pfc *ixgbe_ieee_pfc;
662 struct ieee_ets *ixgbe_ieee_ets;
663 struct ixgbe_dcb_config dcb_cfg;
664 struct ixgbe_dcb_config temp_dcb_cfg;
668 enum ixgbe_fc_mode last_lfc_mode;
670 int num_q_vectors; /* current number of q_vectors for device */
671 int max_q_vectors; /* true count of q_vectors for device */
672 struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
673 struct msix_entry *msix_entries;
676 struct ixgbe_ring test_tx_ring;
677 struct ixgbe_ring test_rx_ring;
679 /* structs defined in ixgbe_hw.h */
682 struct ixgbe_hw_stats stats;
685 unsigned int tx_ring_count;
686 unsigned int xdp_ring_count;
687 unsigned int rx_ring_count;
691 unsigned long sfp_poll_time;
692 unsigned long link_check_timeout;
694 struct timer_list service_timer;
695 struct work_struct service_task;
697 struct hlist_head fdir_filter_list;
698 unsigned long fdir_overflow; /* number of times ATR was backed off */
699 union ixgbe_atr_input fdir_mask;
700 int fdir_filter_count;
703 spinlock_t fdir_perfect_lock;
706 struct ixgbe_fcoe fcoe;
707 #endif /* IXGBE_FCOE */
708 u8 __iomem *io_addr; /* Mainly for iounmap use */
713 char eeprom_id[NVM_VER_SIZE];
719 struct ptp_clock *ptp_clock;
720 struct ptp_clock_info ptp_caps;
721 struct work_struct ptp_tx_work;
722 struct sk_buff *ptp_tx_skb;
723 struct hwtstamp_config tstamp_config;
724 unsigned long ptp_tx_start;
725 unsigned long last_overflow_check;
726 unsigned long last_rx_ptp_check;
727 unsigned long last_rx_timestamp;
728 spinlock_t tmreg_lock;
729 struct cyclecounter hw_cc;
730 struct timecounter hw_tc;
732 u32 tx_hwtstamp_timeouts;
733 u32 tx_hwtstamp_skipped;
734 u32 rx_hwtstamp_cleared;
735 void (*ptp_setup_sdp)(struct ixgbe_adapter *);
738 DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
739 unsigned int num_vfs;
740 struct vf_data_storage *vfinfo;
741 int vf_rate_link_speed;
742 struct vf_macvlans vf_mvs;
743 struct vf_macvlans *mv_list;
745 u32 timer_event_accumulator;
747 struct ixgbe_mac_addr *mac_table;
748 struct kobject *info_kobj;
749 #ifdef CONFIG_IXGBE_HWMON
750 struct hwmon_buff *ixgbe_hwmon_buff;
751 #endif /* CONFIG_IXGBE_HWMON */
752 #ifdef CONFIG_DEBUG_FS
753 struct dentry *ixgbe_dbg_adapter;
754 #endif /*CONFIG_DEBUG_FS*/
757 /* Bitmask indicating in use pools */
758 DECLARE_BITMAP(fwd_bitmask, IXGBE_MAX_MACVLANS + 1);
760 #define IXGBE_MAX_LINK_HANDLE 10
761 struct ixgbe_jump_table *jump_tables[IXGBE_MAX_LINK_HANDLE];
762 unsigned long tables;
764 /* maximum number of RETA entries among all devices supported by ixgbe
765 * driver: currently it's x550 device in non-SRIOV mode
767 #define IXGBE_MAX_RETA_ENTRIES 512
768 u8 rss_indir_tbl[IXGBE_MAX_RETA_ENTRIES];
770 #define IXGBE_RSS_KEY_SIZE 40 /* size of RSS Hash Key in bytes */
773 #ifdef CONFIG_IXGBE_IPSEC
774 struct ixgbe_ipsec *ipsec;
775 #endif /* CONFIG_IXGBE_IPSEC */
778 static inline u8 ixgbe_max_rss_indices(struct ixgbe_adapter *adapter)
780 switch (adapter->hw.mac.type) {
781 case ixgbe_mac_82598EB:
782 case ixgbe_mac_82599EB:
784 return IXGBE_MAX_RSS_INDICES;
786 case ixgbe_mac_X550EM_x:
787 case ixgbe_mac_x550em_a:
788 return IXGBE_MAX_RSS_INDICES_X550;
794 struct ixgbe_fdir_filter {
795 struct hlist_node fdir_node;
796 union ixgbe_atr_input filter;
807 __IXGBE_SERVICE_SCHED,
808 __IXGBE_SERVICE_INITED,
811 __IXGBE_PTP_TX_IN_PROGRESS,
812 __IXGBE_RESET_REQUESTED,
816 union { /* Union defining head/tail partner */
817 struct sk_buff *head;
818 struct sk_buff *tail;
824 #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb)
837 extern const struct ixgbe_info ixgbe_82598_info;
838 extern const struct ixgbe_info ixgbe_82599_info;
839 extern const struct ixgbe_info ixgbe_X540_info;
840 extern const struct ixgbe_info ixgbe_X550_info;
841 extern const struct ixgbe_info ixgbe_X550EM_x_info;
842 extern const struct ixgbe_info ixgbe_x550em_x_fw_info;
843 extern const struct ixgbe_info ixgbe_x550em_a_info;
844 extern const struct ixgbe_info ixgbe_x550em_a_fw_info;
845 #ifdef CONFIG_IXGBE_DCB
846 extern const struct dcbnl_rtnl_ops ixgbe_dcbnl_ops;
849 extern char ixgbe_driver_name[];
850 extern const char ixgbe_driver_version[];
852 extern char ixgbe_default_device_descr[];
853 #endif /* IXGBE_FCOE */
855 int ixgbe_open(struct net_device *netdev);
856 int ixgbe_close(struct net_device *netdev);
857 void ixgbe_up(struct ixgbe_adapter *adapter);
858 void ixgbe_down(struct ixgbe_adapter *adapter);
859 void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
860 void ixgbe_reset(struct ixgbe_adapter *adapter);
861 void ixgbe_set_ethtool_ops(struct net_device *netdev);
862 int ixgbe_setup_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
863 int ixgbe_setup_tx_resources(struct ixgbe_ring *);
864 void ixgbe_free_rx_resources(struct ixgbe_ring *);
865 void ixgbe_free_tx_resources(struct ixgbe_ring *);
866 void ixgbe_configure_rx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
867 void ixgbe_configure_tx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
868 void ixgbe_disable_rx(struct ixgbe_adapter *adapter);
869 void ixgbe_disable_tx(struct ixgbe_adapter *adapter);
870 void ixgbe_update_stats(struct ixgbe_adapter *adapter);
871 int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
872 bool ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
874 #ifdef CONFIG_PCI_IOV
875 void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter);
877 int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter,
878 const u8 *addr, u16 queue);
879 int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter,
880 const u8 *addr, u16 queue);
881 void ixgbe_update_pf_promisc_vlvf(struct ixgbe_adapter *adapter, u32 vid);
882 void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
883 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *, struct ixgbe_adapter *,
884 struct ixgbe_ring *);
885 void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *,
886 struct ixgbe_tx_buffer *);
887 void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
888 void ixgbe_write_eitr(struct ixgbe_q_vector *);
889 int ixgbe_poll(struct napi_struct *napi, int budget);
890 int ethtool_ioctl(struct ifreq *ifr);
891 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
892 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
893 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
894 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
895 union ixgbe_atr_hash_dword input,
896 union ixgbe_atr_hash_dword common,
898 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
899 union ixgbe_atr_input *input_mask);
900 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
901 union ixgbe_atr_input *input,
902 u16 soft_id, u8 queue);
903 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
904 union ixgbe_atr_input *input,
906 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
907 union ixgbe_atr_input *mask);
908 int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
909 struct ixgbe_fdir_filter *input,
911 void ixgbe_set_rx_mode(struct net_device *netdev);
912 #ifdef CONFIG_IXGBE_DCB
913 void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter);
915 int ixgbe_setup_tc(struct net_device *dev, u8 tc);
916 void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
917 void ixgbe_do_reset(struct net_device *netdev);
918 #ifdef CONFIG_IXGBE_HWMON
919 void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
920 int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
921 #endif /* CONFIG_IXGBE_HWMON */
923 void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
924 int ixgbe_fso(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first,
926 int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
927 union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb);
928 int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
929 struct scatterlist *sgl, unsigned int sgc);
930 int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
931 struct scatterlist *sgl, unsigned int sgc);
932 int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
933 int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
934 void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
935 int ixgbe_fcoe_enable(struct net_device *netdev);
936 int ixgbe_fcoe_disable(struct net_device *netdev);
937 #ifdef CONFIG_IXGBE_DCB
938 u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
939 u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
940 #endif /* CONFIG_IXGBE_DCB */
941 int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
942 int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
943 struct netdev_fcoe_hbainfo *info);
944 u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
945 #endif /* IXGBE_FCOE */
946 #ifdef CONFIG_DEBUG_FS
947 void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
948 void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
949 void ixgbe_dbg_init(void);
950 void ixgbe_dbg_exit(void);
952 static inline void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter) {}
953 static inline void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter) {}
954 static inline void ixgbe_dbg_init(void) {}
955 static inline void ixgbe_dbg_exit(void) {}
956 #endif /* CONFIG_DEBUG_FS */
957 static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
959 return netdev_get_tx_queue(ring->netdev, ring->queue_index);
962 void ixgbe_ptp_init(struct ixgbe_adapter *adapter);
963 void ixgbe_ptp_suspend(struct ixgbe_adapter *adapter);
964 void ixgbe_ptp_stop(struct ixgbe_adapter *adapter);
965 void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter);
966 void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter);
967 void ixgbe_ptp_tx_hang(struct ixgbe_adapter *adapter);
968 void ixgbe_ptp_rx_pktstamp(struct ixgbe_q_vector *, struct sk_buff *);
969 void ixgbe_ptp_rx_rgtstamp(struct ixgbe_q_vector *, struct sk_buff *skb);
970 static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring,
971 union ixgbe_adv_rx_desc *rx_desc,
974 if (unlikely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_TSIP))) {
975 ixgbe_ptp_rx_pktstamp(rx_ring->q_vector, skb);
979 if (unlikely(!ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS)))
982 ixgbe_ptp_rx_rgtstamp(rx_ring->q_vector, skb);
984 /* Update the last_rx_timestamp timer in order to enable watchdog check
985 * for error case of latched timestamp on a dropped packet.
987 rx_ring->last_rx_timestamp = jiffies;
990 int ixgbe_ptp_set_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr);
991 int ixgbe_ptp_get_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr);
992 void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
993 void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
994 void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter);
995 #ifdef CONFIG_PCI_IOV
996 void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter);
999 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
1000 struct ixgbe_adapter *adapter,
1001 struct ixgbe_ring *tx_ring);
1002 u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter);
1003 void ixgbe_store_key(struct ixgbe_adapter *adapter);
1004 void ixgbe_store_reta(struct ixgbe_adapter *adapter);
1005 s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
1006 u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm);
1007 #ifdef CONFIG_IXGBE_IPSEC
1008 void ixgbe_init_ipsec_offload(struct ixgbe_adapter *adapter);
1009 void ixgbe_stop_ipsec_offload(struct ixgbe_adapter *adapter);
1010 void ixgbe_ipsec_restore(struct ixgbe_adapter *adapter);
1011 void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,
1012 union ixgbe_adv_rx_desc *rx_desc,
1013 struct sk_buff *skb);
1014 int ixgbe_ipsec_tx(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first,
1015 struct ixgbe_ipsec_tx_data *itd);
1016 void ixgbe_ipsec_vf_clear(struct ixgbe_adapter *adapter, u32 vf);
1017 int ixgbe_ipsec_vf_add_sa(struct ixgbe_adapter *adapter, u32 *mbuf, u32 vf);
1018 int ixgbe_ipsec_vf_del_sa(struct ixgbe_adapter *adapter, u32 *mbuf, u32 vf);
1020 static inline void ixgbe_init_ipsec_offload(struct ixgbe_adapter *adapter) { }
1021 static inline void ixgbe_stop_ipsec_offload(struct ixgbe_adapter *adapter) { }
1022 static inline void ixgbe_ipsec_restore(struct ixgbe_adapter *adapter) { }
1023 static inline void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,
1024 union ixgbe_adv_rx_desc *rx_desc,
1025 struct sk_buff *skb) { }
1026 static inline int ixgbe_ipsec_tx(struct ixgbe_ring *tx_ring,
1027 struct ixgbe_tx_buffer *first,
1028 struct ixgbe_ipsec_tx_data *itd) { return 0; }
1029 static inline void ixgbe_ipsec_vf_clear(struct ixgbe_adapter *adapter,
1031 static inline int ixgbe_ipsec_vf_add_sa(struct ixgbe_adapter *adapter,
1032 u32 *mbuf, u32 vf) { return -EACCES; }
1033 static inline int ixgbe_ipsec_vf_del_sa(struct ixgbe_adapter *adapter,
1034 u32 *mbuf, u32 vf) { return -EACCES; }
1035 #endif /* CONFIG_IXGBE_IPSEC */
1037 static inline bool ixgbe_enabled_xdp_adapter(struct ixgbe_adapter *adapter)
1039 return !!adapter->xdp_prog;
1042 #endif /* _IXGBE_H_ */