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>
16 #include <linux/timecounter.h>
17 #include <linux/net_tstamp.h>
18 #include <linux/ptp_clock_kernel.h>
20 #include "ixgbe_type.h"
21 #include "ixgbe_common.h"
22 #include "ixgbe_dcb.h"
23 #if IS_ENABLED(CONFIG_FCOE)
25 #include "ixgbe_fcoe.h"
26 #endif /* IS_ENABLED(CONFIG_FCOE) */
27 #ifdef CONFIG_IXGBE_DCA
28 #include <linux/dca.h>
30 #include "ixgbe_ipsec.h"
34 /* common prefix used by pr_<> macros */
36 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38 /* TX/RX descriptor defines */
39 #define IXGBE_DEFAULT_TXD 512
40 #define IXGBE_DEFAULT_TX_WORK 256
41 #define IXGBE_MAX_TXD 4096
42 #define IXGBE_MIN_TXD 64
44 #if (PAGE_SIZE < 8192)
45 #define IXGBE_DEFAULT_RXD 512
47 #define IXGBE_DEFAULT_RXD 128
49 #define IXGBE_MAX_RXD 4096
50 #define IXGBE_MIN_RXD 64
52 #define IXGBE_ETH_P_LLDP 0x88CC
55 #define IXGBE_MIN_FCRTL 0x40
56 #define IXGBE_MAX_FCRTL 0x7FF80
57 #define IXGBE_MIN_FCRTH 0x600
58 #define IXGBE_MAX_FCRTH 0x7FFF0
59 #define IXGBE_DEFAULT_FCPAUSE 0xFFFF
60 #define IXGBE_MIN_FCPAUSE 0
61 #define IXGBE_MAX_FCPAUSE 0xFFFF
63 /* Supported Rx Buffer Sizes */
64 #define IXGBE_RXBUFFER_256 256 /* Used for skb receive header */
65 #define IXGBE_RXBUFFER_1536 1536
66 #define IXGBE_RXBUFFER_2K 2048
67 #define IXGBE_RXBUFFER_3K 3072
68 #define IXGBE_RXBUFFER_4K 4096
69 #define IXGBE_MAX_RXBUFFER 16384 /* largest size for a single descriptor */
71 /* Attempt to maximize the headroom available for incoming frames. We
72 * use a 2K buffer for receives and need 1536/1534 to store the data for
73 * the frame. This leaves us with 512 bytes of room. From that we need
74 * to deduct the space needed for the shared info and the padding needed
75 * to IP align the frame.
77 * Note: For cache line sizes 256 or larger this value is going to end
78 * up negative. In these cases we should fall back to the 3K
81 #if (PAGE_SIZE < 8192)
82 #define IXGBE_MAX_2K_FRAME_BUILD_SKB (IXGBE_RXBUFFER_1536 - NET_IP_ALIGN)
83 #define IXGBE_2K_TOO_SMALL_WITH_PADDING \
84 ((NET_SKB_PAD + IXGBE_RXBUFFER_1536) > SKB_WITH_OVERHEAD(IXGBE_RXBUFFER_2K))
86 static inline int ixgbe_compute_pad(int rx_buf_len)
88 int page_size, pad_size;
90 page_size = ALIGN(rx_buf_len, PAGE_SIZE / 2);
91 pad_size = SKB_WITH_OVERHEAD(page_size) - rx_buf_len;
96 static inline int ixgbe_skb_pad(void)
100 /* If a 2K buffer cannot handle a standard Ethernet frame then
101 * optimize padding for a 3K buffer instead of a 1.5K buffer.
103 * For a 3K buffer we need to add enough padding to allow for
104 * tailroom due to NET_IP_ALIGN possibly shifting us out of
105 * cache-line alignment.
107 if (IXGBE_2K_TOO_SMALL_WITH_PADDING)
108 rx_buf_len = IXGBE_RXBUFFER_3K + SKB_DATA_ALIGN(NET_IP_ALIGN);
110 rx_buf_len = IXGBE_RXBUFFER_1536;
112 /* if needed make room for NET_IP_ALIGN */
113 rx_buf_len -= NET_IP_ALIGN;
115 return ixgbe_compute_pad(rx_buf_len);
118 #define IXGBE_SKB_PAD ixgbe_skb_pad()
120 #define IXGBE_SKB_PAD (NET_SKB_PAD + NET_IP_ALIGN)
124 * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN means we
125 * reserve 64 more, and skb_shared_info adds an additional 320 bytes more,
126 * this adds up to 448 bytes of extra data.
128 * Since netdev_alloc_skb now allocates a page fragment we can use a value
129 * of 256 and the resultant skb will have a truesize of 960 or less.
131 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
133 /* How many Rx Buffers do we bundle into one write to the hardware ? */
134 #define IXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */
136 #define IXGBE_RX_DMA_ATTR \
137 (DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING)
139 enum ixgbe_tx_flags {
141 IXGBE_TX_FLAGS_HW_VLAN = 0x01,
142 IXGBE_TX_FLAGS_TSO = 0x02,
143 IXGBE_TX_FLAGS_TSTAMP = 0x04,
146 IXGBE_TX_FLAGS_CC = 0x08,
147 IXGBE_TX_FLAGS_IPV4 = 0x10,
148 IXGBE_TX_FLAGS_CSUM = 0x20,
149 IXGBE_TX_FLAGS_IPSEC = 0x40,
151 /* software defined flags */
152 IXGBE_TX_FLAGS_SW_VLAN = 0x80,
153 IXGBE_TX_FLAGS_FCOE = 0x100,
157 #define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
158 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000
159 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29
160 #define IXGBE_TX_FLAGS_VLAN_SHIFT 16
162 #define IXGBE_MAX_VF_MC_ENTRIES 30
163 #define IXGBE_MAX_VF_FUNCTIONS 64
164 #define IXGBE_MAX_VFTA_ENTRIES 128
165 #define MAX_EMULATION_MAC_ADDRS 16
166 #define IXGBE_MAX_PF_MACVLANS 15
167 #define VMDQ_P(p) ((p) + adapter->ring_feature[RING_F_VMDQ].offset)
168 #define IXGBE_82599_VF_DEVICE_ID 0x10ED
169 #define IXGBE_X540_VF_DEVICE_ID 0x1515
171 struct vf_data_storage {
172 struct pci_dev *vfdev;
173 unsigned char vf_mac_addresses[ETH_ALEN];
174 u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
175 u16 num_vf_mc_hashes;
178 u16 pf_vlan; /* When set, guest VLAN config not allowed. */
182 bool rss_query_enabled;
188 enum ixgbevf_xcast_modes {
189 IXGBEVF_XCAST_MODE_NONE = 0,
190 IXGBEVF_XCAST_MODE_MULTI,
191 IXGBEVF_XCAST_MODE_ALLMULTI,
192 IXGBEVF_XCAST_MODE_PROMISC,
200 u8 vf_macvlan[ETH_ALEN];
203 #define IXGBE_MAX_TXD_PWR 14
204 #define IXGBE_MAX_DATA_PER_TXD (1u << IXGBE_MAX_TXD_PWR)
206 /* Tx Descriptors needed, worst case */
207 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IXGBE_MAX_DATA_PER_TXD)
208 #define DESC_NEEDED (MAX_SKB_FRAGS + 4)
210 /* wrapper around a pointer to a socket buffer,
211 * so a DMA handle can be stored along with the buffer */
212 struct ixgbe_tx_buffer {
213 union ixgbe_adv_tx_desc *next_to_watch;
214 unsigned long time_stamp;
217 struct xdp_frame *xdpf;
219 unsigned int bytecount;
220 unsigned short gso_segs;
222 DEFINE_DMA_UNMAP_ADDR(dma);
223 DEFINE_DMA_UNMAP_LEN(len);
227 struct ixgbe_rx_buffer {
243 struct ixgbe_queue_stats {
248 struct ixgbe_tx_queue_stats {
254 struct ixgbe_rx_queue_stats {
259 u64 alloc_rx_page_failed;
260 u64 alloc_rx_buff_failed;
264 #define IXGBE_TS_HDR_LEN 8
266 enum ixgbe_ring_state_t {
267 __IXGBE_RX_3K_BUFFER,
268 __IXGBE_RX_BUILD_SKB_ENABLED,
269 __IXGBE_RX_RSC_ENABLED,
270 __IXGBE_RX_CSUM_UDP_ZERO_ERR,
272 __IXGBE_TX_FDIR_INIT_DONE,
273 __IXGBE_TX_XPS_INIT_DONE,
274 __IXGBE_TX_DETECT_HANG,
275 __IXGBE_HANG_CHECK_ARMED,
280 #define ring_uses_build_skb(ring) \
281 test_bit(__IXGBE_RX_BUILD_SKB_ENABLED, &(ring)->state)
283 struct ixgbe_fwd_adapter {
284 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
285 struct net_device *netdev;
286 unsigned int tx_base_queue;
287 unsigned int rx_base_queue;
291 #define check_for_tx_hang(ring) \
292 test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
293 #define set_check_for_tx_hang(ring) \
294 set_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
295 #define clear_check_for_tx_hang(ring) \
296 clear_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
297 #define ring_is_rsc_enabled(ring) \
298 test_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
299 #define set_ring_rsc_enabled(ring) \
300 set_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
301 #define clear_ring_rsc_enabled(ring) \
302 clear_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
303 #define ring_is_xdp(ring) \
304 test_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
305 #define set_ring_xdp(ring) \
306 set_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
307 #define clear_ring_xdp(ring) \
308 clear_bit(__IXGBE_TX_XDP_RING, &(ring)->state)
310 struct ixgbe_ring *next; /* pointer to next ring in q_vector */
311 struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */
312 struct net_device *netdev; /* netdev ring belongs to */
313 struct bpf_prog *xdp_prog;
314 struct device *dev; /* device for DMA mapping */
315 void *desc; /* descriptor ring memory */
317 struct ixgbe_tx_buffer *tx_buffer_info;
318 struct ixgbe_rx_buffer *rx_buffer_info;
322 dma_addr_t dma; /* phys. address of descriptor ring */
323 unsigned int size; /* length in bytes */
325 u16 count; /* amount of descriptors */
327 u8 queue_index; /* needed for multiqueue queue management */
328 u8 reg_idx; /* holds the special value that gets
329 * the hardware register offset
330 * associated with this ring, which is
331 * different for DCB and RSS modes
336 unsigned long last_rx_timestamp;
347 struct ixgbe_queue_stats stats;
348 struct u64_stats_sync syncp;
350 struct ixgbe_tx_queue_stats tx_stats;
351 struct ixgbe_rx_queue_stats rx_stats;
353 struct xdp_rxq_info xdp_rxq;
354 struct xdp_umem *xsk_umem;
355 struct zero_copy_allocator zca; /* ZC allocator anchor */
356 u16 ring_idx; /* {rx,tx,xdp}_ring back reference idx */
358 } ____cacheline_internodealigned_in_smp;
360 enum ixgbe_ring_f_enum {
362 RING_F_VMDQ, /* SR-IOV uses the same ring feature */
367 #endif /* IXGBE_FCOE */
369 RING_F_ARRAY_SIZE /* must be last in enum set */
372 #define IXGBE_MAX_RSS_INDICES 16
373 #define IXGBE_MAX_RSS_INDICES_X550 63
374 #define IXGBE_MAX_VMDQ_INDICES 64
375 #define IXGBE_MAX_FDIR_INDICES 63 /* based on q_vector limit */
376 #define IXGBE_MAX_FCOE_INDICES 8
377 #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
378 #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
379 #define MAX_XDP_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
380 #define IXGBE_MAX_L2A_QUEUES 4
381 #define IXGBE_BAD_L2A_QUEUE 3
382 #define IXGBE_MAX_MACVLANS 63
384 struct ixgbe_ring_feature {
385 u16 limit; /* upper limit on feature indices */
386 u16 indices; /* current value of indices */
387 u16 mask; /* Mask used for feature to ring mapping */
388 u16 offset; /* offset to start of feature */
389 } ____cacheline_internodealigned_in_smp;
391 #define IXGBE_82599_VMDQ_8Q_MASK 0x78
392 #define IXGBE_82599_VMDQ_4Q_MASK 0x7C
393 #define IXGBE_82599_VMDQ_2Q_MASK 0x7E
396 * FCoE requires that all Rx buffers be over 2200 bytes in length. Since
397 * this is twice the size of a half page we need to double the page order
398 * for FCoE enabled Rx queues.
400 static inline unsigned int ixgbe_rx_bufsz(struct ixgbe_ring *ring)
402 if (test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
403 return IXGBE_RXBUFFER_3K;
404 #if (PAGE_SIZE < 8192)
405 if (ring_uses_build_skb(ring))
406 return IXGBE_MAX_2K_FRAME_BUILD_SKB;
408 return IXGBE_RXBUFFER_2K;
411 static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
413 #if (PAGE_SIZE < 8192)
414 if (test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
419 #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
421 #define IXGBE_ITR_ADAPTIVE_MIN_INC 2
422 #define IXGBE_ITR_ADAPTIVE_MIN_USECS 10
423 #define IXGBE_ITR_ADAPTIVE_MAX_USECS 126
424 #define IXGBE_ITR_ADAPTIVE_LATENCY 0x80
425 #define IXGBE_ITR_ADAPTIVE_BULK 0x00
427 struct ixgbe_ring_container {
428 struct ixgbe_ring *ring; /* pointer to linked list of rings */
429 unsigned long next_update; /* jiffies value of last update */
430 unsigned int total_bytes; /* total bytes processed this int */
431 unsigned int total_packets; /* total packets processed this int */
432 u16 work_limit; /* total work allowed per interrupt */
433 u8 count; /* total number of rings in vector */
434 u8 itr; /* current ITR setting for ring */
437 /* iterator for handling rings in ring container */
438 #define ixgbe_for_each_ring(pos, head) \
439 for (pos = (head).ring; pos != NULL; pos = pos->next)
441 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
443 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
445 /* MAX_Q_VECTORS of these are allocated,
446 * but we only use one per queue-specific vector.
448 struct ixgbe_q_vector {
449 struct ixgbe_adapter *adapter;
450 #ifdef CONFIG_IXGBE_DCA
451 int cpu; /* CPU for DCA */
453 u16 v_idx; /* index of q_vector within array, also used for
454 * finding the bit in EICR and friends that
455 * represents the vector for this ring */
456 u16 itr; /* Interrupt throttle rate written to EITR */
457 struct ixgbe_ring_container rx, tx;
459 struct napi_struct napi;
460 cpumask_t affinity_mask;
462 struct rcu_head rcu; /* to avoid race with update stats on free */
463 char name[IFNAMSIZ + 9];
465 /* for dynamic allocation of rings associated with this q_vector */
466 struct ixgbe_ring ring[0] ____cacheline_internodealigned_in_smp;
469 #ifdef CONFIG_IXGBE_HWMON
471 #define IXGBE_HWMON_TYPE_LOC 0
472 #define IXGBE_HWMON_TYPE_TEMP 1
473 #define IXGBE_HWMON_TYPE_CAUTION 2
474 #define IXGBE_HWMON_TYPE_MAX 3
477 struct device_attribute dev_attr;
479 struct ixgbe_thermal_diode_data *sensor;
484 struct attribute_group group;
485 const struct attribute_group *groups[2];
486 struct attribute *attrs[IXGBE_MAX_SENSORS * 4 + 1];
487 struct hwmon_attr hwmon_list[IXGBE_MAX_SENSORS * 4];
488 unsigned int n_hwmon;
490 #endif /* CONFIG_IXGBE_HWMON */
493 * microsecond values for various ITR rates shifted by 2 to fit itr register
494 * with the first 3 bits reserved 0
496 #define IXGBE_MIN_RSC_ITR 24
497 #define IXGBE_100K_ITR 40
498 #define IXGBE_20K_ITR 200
499 #define IXGBE_12K_ITR 336
501 /* ixgbe_test_staterr - tests bits in Rx descriptor status and error fields */
502 static inline __le32 ixgbe_test_staterr(union ixgbe_adv_rx_desc *rx_desc,
503 const u32 stat_err_bits)
505 return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
508 static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring)
510 u16 ntc = ring->next_to_clean;
511 u16 ntu = ring->next_to_use;
513 return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
516 #define IXGBE_RX_DESC(R, i) \
517 (&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
518 #define IXGBE_TX_DESC(R, i) \
519 (&(((union ixgbe_adv_tx_desc *)((R)->desc))[i]))
520 #define IXGBE_TX_CTXTDESC(R, i) \
521 (&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i]))
523 #define IXGBE_MAX_JUMBO_FRAME_SIZE 9728 /* Maximum Supported Size 9.5KB */
525 /* Use 3K as the baby jumbo frame size for FCoE */
526 #define IXGBE_FCOE_JUMBO_FRAME_SIZE 3072
527 #endif /* IXGBE_FCOE */
529 #define OTHER_VECTOR 1
530 #define NON_Q_VECTORS (OTHER_VECTOR)
532 #define MAX_MSIX_VECTORS_82599 64
533 #define MAX_Q_VECTORS_82599 64
534 #define MAX_MSIX_VECTORS_82598 18
535 #define MAX_Q_VECTORS_82598 16
537 struct ixgbe_mac_addr {
540 u16 state; /* bitmask */
543 #define IXGBE_MAC_STATE_DEFAULT 0x1
544 #define IXGBE_MAC_STATE_MODIFIED 0x2
545 #define IXGBE_MAC_STATE_IN_USE 0x4
547 #define MAX_Q_VECTORS MAX_Q_VECTORS_82599
548 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
550 #define MIN_MSIX_Q_VECTORS 1
551 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
553 /* default to trying for four seconds */
554 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
555 #define IXGBE_SFP_POLL_JIFFIES (2 * HZ) /* SFP poll every 2 seconds */
557 /* board specific private data structure */
558 struct ixgbe_adapter {
559 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
560 /* OS defined structs */
561 struct net_device *netdev;
562 struct bpf_prog *xdp_prog;
563 struct pci_dev *pdev;
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];
638 struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
642 u32 tx_timeout_count;
645 struct ixgbe_ring *rx_ring[MAX_RX_QUEUES];
646 int num_rx_pools; /* == num_rx_queues in 82598 */
647 int num_rx_queues_per_pool; /* 1 if 82598, can be many if 82599 */
648 u64 hw_csum_rx_error;
649 u64 hw_rx_no_dma_resources;
654 u32 alloc_rx_page_failed;
655 u32 alloc_rx_buff_failed;
657 struct ixgbe_q_vector *q_vector[MAX_Q_VECTORS];
660 struct ieee_pfc *ixgbe_ieee_pfc;
661 struct ieee_ets *ixgbe_ieee_ets;
662 struct ixgbe_dcb_config dcb_cfg;
663 struct ixgbe_dcb_config temp_dcb_cfg;
667 enum ixgbe_fc_mode last_lfc_mode;
669 int num_q_vectors; /* current number of q_vectors for device */
670 int max_q_vectors; /* true count of q_vectors for device */
671 struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
672 struct msix_entry *msix_entries;
675 struct ixgbe_ring test_tx_ring;
676 struct ixgbe_ring test_rx_ring;
678 /* structs defined in ixgbe_hw.h */
681 struct ixgbe_hw_stats stats;
684 unsigned int tx_ring_count;
685 unsigned int xdp_ring_count;
686 unsigned int rx_ring_count;
690 unsigned long sfp_poll_time;
691 unsigned long link_check_timeout;
693 struct timer_list service_timer;
694 struct work_struct service_task;
696 struct hlist_head fdir_filter_list;
697 unsigned long fdir_overflow; /* number of times ATR was backed off */
698 union ixgbe_atr_input fdir_mask;
699 int fdir_filter_count;
702 spinlock_t fdir_perfect_lock;
705 struct ixgbe_fcoe fcoe;
706 #endif /* IXGBE_FCOE */
707 u8 __iomem *io_addr; /* Mainly for iounmap use */
712 char eeprom_id[NVM_VER_SIZE];
718 struct ptp_clock *ptp_clock;
719 struct ptp_clock_info ptp_caps;
720 struct work_struct ptp_tx_work;
721 struct sk_buff *ptp_tx_skb;
722 struct hwtstamp_config tstamp_config;
723 unsigned long ptp_tx_start;
724 unsigned long last_overflow_check;
725 unsigned long last_rx_ptp_check;
726 unsigned long last_rx_timestamp;
727 spinlock_t tmreg_lock;
728 struct cyclecounter hw_cc;
729 struct timecounter hw_tc;
731 u32 tx_hwtstamp_timeouts;
732 u32 tx_hwtstamp_skipped;
733 u32 rx_hwtstamp_cleared;
734 void (*ptp_setup_sdp)(struct ixgbe_adapter *);
737 DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
738 unsigned int num_vfs;
739 struct vf_data_storage *vfinfo;
740 int vf_rate_link_speed;
741 struct vf_macvlans vf_mvs;
742 struct vf_macvlans *mv_list;
744 u32 timer_event_accumulator;
746 struct ixgbe_mac_addr *mac_table;
747 struct kobject *info_kobj;
748 #ifdef CONFIG_IXGBE_HWMON
749 struct hwmon_buff *ixgbe_hwmon_buff;
750 #endif /* CONFIG_IXGBE_HWMON */
751 #ifdef CONFIG_DEBUG_FS
752 struct dentry *ixgbe_dbg_adapter;
753 #endif /*CONFIG_DEBUG_FS*/
756 /* Bitmask indicating in use pools */
757 DECLARE_BITMAP(fwd_bitmask, IXGBE_MAX_MACVLANS + 1);
759 #define IXGBE_MAX_LINK_HANDLE 10
760 struct ixgbe_jump_table *jump_tables[IXGBE_MAX_LINK_HANDLE];
761 unsigned long tables;
763 /* maximum number of RETA entries among all devices supported by ixgbe
764 * driver: currently it's x550 device in non-SRIOV mode
766 #define IXGBE_MAX_RETA_ENTRIES 512
767 u8 rss_indir_tbl[IXGBE_MAX_RETA_ENTRIES];
769 #define IXGBE_RSS_KEY_SIZE 40 /* size of RSS Hash Key in bytes */
772 #ifdef CONFIG_XFRM_OFFLOAD
773 struct ixgbe_ipsec *ipsec;
774 #endif /* CONFIG_XFRM_OFFLOAD */
776 /* AF_XDP zero-copy */
777 struct xdp_umem **xsk_umems;
778 u16 num_xsk_umems_used;
782 static inline u8 ixgbe_max_rss_indices(struct ixgbe_adapter *adapter)
784 switch (adapter->hw.mac.type) {
785 case ixgbe_mac_82598EB:
786 case ixgbe_mac_82599EB:
788 return IXGBE_MAX_RSS_INDICES;
790 case ixgbe_mac_X550EM_x:
791 case ixgbe_mac_x550em_a:
792 return IXGBE_MAX_RSS_INDICES_X550;
798 struct ixgbe_fdir_filter {
799 struct hlist_node fdir_node;
800 union ixgbe_atr_input filter;
811 __IXGBE_SERVICE_SCHED,
812 __IXGBE_SERVICE_INITED,
815 __IXGBE_PTP_TX_IN_PROGRESS,
816 __IXGBE_RESET_REQUESTED,
820 union { /* Union defining head/tail partner */
821 struct sk_buff *head;
822 struct sk_buff *tail;
828 #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb)
841 extern const struct ixgbe_info ixgbe_82598_info;
842 extern const struct ixgbe_info ixgbe_82599_info;
843 extern const struct ixgbe_info ixgbe_X540_info;
844 extern const struct ixgbe_info ixgbe_X550_info;
845 extern const struct ixgbe_info ixgbe_X550EM_x_info;
846 extern const struct ixgbe_info ixgbe_x550em_x_fw_info;
847 extern const struct ixgbe_info ixgbe_x550em_a_info;
848 extern const struct ixgbe_info ixgbe_x550em_a_fw_info;
849 #ifdef CONFIG_IXGBE_DCB
850 extern const struct dcbnl_rtnl_ops ixgbe_dcbnl_ops;
853 extern char ixgbe_driver_name[];
854 extern const char ixgbe_driver_version[];
856 extern char ixgbe_default_device_descr[];
857 #endif /* IXGBE_FCOE */
859 int ixgbe_open(struct net_device *netdev);
860 int ixgbe_close(struct net_device *netdev);
861 void ixgbe_up(struct ixgbe_adapter *adapter);
862 void ixgbe_down(struct ixgbe_adapter *adapter);
863 void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
864 void ixgbe_reset(struct ixgbe_adapter *adapter);
865 void ixgbe_set_ethtool_ops(struct net_device *netdev);
866 int ixgbe_setup_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
867 int ixgbe_setup_tx_resources(struct ixgbe_ring *);
868 void ixgbe_free_rx_resources(struct ixgbe_ring *);
869 void ixgbe_free_tx_resources(struct ixgbe_ring *);
870 void ixgbe_configure_rx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
871 void ixgbe_configure_tx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
872 void ixgbe_disable_rx(struct ixgbe_adapter *adapter);
873 void ixgbe_disable_tx(struct ixgbe_adapter *adapter);
874 void ixgbe_update_stats(struct ixgbe_adapter *adapter);
875 int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
876 bool ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
878 #ifdef CONFIG_PCI_IOV
879 void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter);
881 int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter,
882 const u8 *addr, u16 queue);
883 int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter,
884 const u8 *addr, u16 queue);
885 void ixgbe_update_pf_promisc_vlvf(struct ixgbe_adapter *adapter, u32 vid);
886 void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
887 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *, struct ixgbe_adapter *,
888 struct ixgbe_ring *);
889 void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *,
890 struct ixgbe_tx_buffer *);
891 void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
892 void ixgbe_write_eitr(struct ixgbe_q_vector *);
893 int ixgbe_poll(struct napi_struct *napi, int budget);
894 int ethtool_ioctl(struct ifreq *ifr);
895 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
896 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
897 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
898 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
899 union ixgbe_atr_hash_dword input,
900 union ixgbe_atr_hash_dword common,
902 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
903 union ixgbe_atr_input *input_mask);
904 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
905 union ixgbe_atr_input *input,
906 u16 soft_id, u8 queue);
907 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
908 union ixgbe_atr_input *input,
910 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
911 union ixgbe_atr_input *mask);
912 int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
913 struct ixgbe_fdir_filter *input,
915 void ixgbe_set_rx_mode(struct net_device *netdev);
916 #ifdef CONFIG_IXGBE_DCB
917 void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter);
919 int ixgbe_setup_tc(struct net_device *dev, u8 tc);
920 void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
921 void ixgbe_do_reset(struct net_device *netdev);
922 #ifdef CONFIG_IXGBE_HWMON
923 void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
924 int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
925 #endif /* CONFIG_IXGBE_HWMON */
927 void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
928 int ixgbe_fso(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first,
930 int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
931 union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb);
932 int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
933 struct scatterlist *sgl, unsigned int sgc);
934 int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
935 struct scatterlist *sgl, unsigned int sgc);
936 int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
937 int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
938 void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
939 int ixgbe_fcoe_enable(struct net_device *netdev);
940 int ixgbe_fcoe_disable(struct net_device *netdev);
941 #ifdef CONFIG_IXGBE_DCB
942 u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
943 u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
944 #endif /* CONFIG_IXGBE_DCB */
945 int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
946 int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
947 struct netdev_fcoe_hbainfo *info);
948 u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
949 #endif /* IXGBE_FCOE */
950 #ifdef CONFIG_DEBUG_FS
951 void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
952 void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
953 void ixgbe_dbg_init(void);
954 void ixgbe_dbg_exit(void);
956 static inline void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter) {}
957 static inline void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter) {}
958 static inline void ixgbe_dbg_init(void) {}
959 static inline void ixgbe_dbg_exit(void) {}
960 #endif /* CONFIG_DEBUG_FS */
961 static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
963 return netdev_get_tx_queue(ring->netdev, ring->queue_index);
966 void ixgbe_ptp_init(struct ixgbe_adapter *adapter);
967 void ixgbe_ptp_suspend(struct ixgbe_adapter *adapter);
968 void ixgbe_ptp_stop(struct ixgbe_adapter *adapter);
969 void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter);
970 void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter);
971 void ixgbe_ptp_tx_hang(struct ixgbe_adapter *adapter);
972 void ixgbe_ptp_rx_pktstamp(struct ixgbe_q_vector *, struct sk_buff *);
973 void ixgbe_ptp_rx_rgtstamp(struct ixgbe_q_vector *, struct sk_buff *skb);
974 static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring,
975 union ixgbe_adv_rx_desc *rx_desc,
978 if (unlikely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_TSIP))) {
979 ixgbe_ptp_rx_pktstamp(rx_ring->q_vector, skb);
983 if (unlikely(!ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS)))
986 ixgbe_ptp_rx_rgtstamp(rx_ring->q_vector, skb);
988 /* Update the last_rx_timestamp timer in order to enable watchdog check
989 * for error case of latched timestamp on a dropped packet.
991 rx_ring->last_rx_timestamp = jiffies;
994 int ixgbe_ptp_set_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr);
995 int ixgbe_ptp_get_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr);
996 void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
997 void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
998 void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter);
999 #ifdef CONFIG_PCI_IOV
1000 void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter);
1003 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
1004 struct ixgbe_adapter *adapter,
1005 struct ixgbe_ring *tx_ring);
1006 u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter);
1007 void ixgbe_store_key(struct ixgbe_adapter *adapter);
1008 void ixgbe_store_reta(struct ixgbe_adapter *adapter);
1009 s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
1010 u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm);
1011 #ifdef CONFIG_XFRM_OFFLOAD
1012 void ixgbe_init_ipsec_offload(struct ixgbe_adapter *adapter);
1013 void ixgbe_stop_ipsec_offload(struct ixgbe_adapter *adapter);
1014 void ixgbe_ipsec_restore(struct ixgbe_adapter *adapter);
1015 void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,
1016 union ixgbe_adv_rx_desc *rx_desc,
1017 struct sk_buff *skb);
1018 int ixgbe_ipsec_tx(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first,
1019 struct ixgbe_ipsec_tx_data *itd);
1020 void ixgbe_ipsec_vf_clear(struct ixgbe_adapter *adapter, u32 vf);
1021 int ixgbe_ipsec_vf_add_sa(struct ixgbe_adapter *adapter, u32 *mbuf, u32 vf);
1022 int ixgbe_ipsec_vf_del_sa(struct ixgbe_adapter *adapter, u32 *mbuf, u32 vf);
1024 static inline void ixgbe_init_ipsec_offload(struct ixgbe_adapter *adapter) { }
1025 static inline void ixgbe_stop_ipsec_offload(struct ixgbe_adapter *adapter) { }
1026 static inline void ixgbe_ipsec_restore(struct ixgbe_adapter *adapter) { }
1027 static inline void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,
1028 union ixgbe_adv_rx_desc *rx_desc,
1029 struct sk_buff *skb) { }
1030 static inline int ixgbe_ipsec_tx(struct ixgbe_ring *tx_ring,
1031 struct ixgbe_tx_buffer *first,
1032 struct ixgbe_ipsec_tx_data *itd) { return 0; }
1033 static inline void ixgbe_ipsec_vf_clear(struct ixgbe_adapter *adapter,
1035 static inline int ixgbe_ipsec_vf_add_sa(struct ixgbe_adapter *adapter,
1036 u32 *mbuf, u32 vf) { return -EACCES; }
1037 static inline int ixgbe_ipsec_vf_del_sa(struct ixgbe_adapter *adapter,
1038 u32 *mbuf, u32 vf) { return -EACCES; }
1039 #endif /* CONFIG_XFRM_OFFLOAD */
1040 #endif /* _IXGBE_H_ */