1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2016 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
32 #include <linux/bitops.h>
33 #include <linux/types.h>
34 #include <linux/pci.h>
35 #include <linux/netdevice.h>
36 #include <linux/cpumask.h>
37 #include <linux/aer.h>
38 #include <linux/if_vlan.h>
39 #include <linux/jiffies.h>
41 #include <linux/timecounter.h>
42 #include <linux/net_tstamp.h>
43 #include <linux/ptp_clock_kernel.h>
45 #include "ixgbe_type.h"
46 #include "ixgbe_common.h"
47 #include "ixgbe_dcb.h"
48 #if IS_ENABLED(CONFIG_FCOE)
50 #include "ixgbe_fcoe.h"
51 #endif /* IS_ENABLED(CONFIG_FCOE) */
52 #ifdef CONFIG_IXGBE_DCA
53 #include <linux/dca.h>
56 #include <net/busy_poll.h>
58 /* common prefix used by pr_<> macros */
60 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
62 /* TX/RX descriptor defines */
63 #define IXGBE_DEFAULT_TXD 512
64 #define IXGBE_DEFAULT_TX_WORK 256
65 #define IXGBE_MAX_TXD 4096
66 #define IXGBE_MIN_TXD 64
68 #if (PAGE_SIZE < 8192)
69 #define IXGBE_DEFAULT_RXD 512
71 #define IXGBE_DEFAULT_RXD 128
73 #define IXGBE_MAX_RXD 4096
74 #define IXGBE_MIN_RXD 64
76 #define IXGBE_ETH_P_LLDP 0x88CC
79 #define IXGBE_MIN_FCRTL 0x40
80 #define IXGBE_MAX_FCRTL 0x7FF80
81 #define IXGBE_MIN_FCRTH 0x600
82 #define IXGBE_MAX_FCRTH 0x7FFF0
83 #define IXGBE_DEFAULT_FCPAUSE 0xFFFF
84 #define IXGBE_MIN_FCPAUSE 0
85 #define IXGBE_MAX_FCPAUSE 0xFFFF
87 /* Supported Rx Buffer Sizes */
88 #define IXGBE_RXBUFFER_256 256 /* Used for skb receive header */
89 #define IXGBE_RXBUFFER_1536 1536
90 #define IXGBE_RXBUFFER_2K 2048
91 #define IXGBE_RXBUFFER_3K 3072
92 #define IXGBE_RXBUFFER_4K 4096
93 #define IXGBE_MAX_RXBUFFER 16384 /* largest size for a single descriptor */
95 /* Attempt to maximize the headroom available for incoming frames. We
96 * use a 2K buffer for receives and need 1536/1534 to store the data for
97 * the frame. This leaves us with 512 bytes of room. From that we need
98 * to deduct the space needed for the shared info and the padding needed
99 * to IP align the frame.
101 * Note: For cache line sizes 256 or larger this value is going to end
102 * up negative. In these cases we should fall back to the 3K
105 #if (PAGE_SIZE < 8192)
106 #define IXGBE_MAX_2K_FRAME_BUILD_SKB (IXGBE_RXBUFFER_1536 - NET_IP_ALIGN)
107 #define IXGBE_2K_TOO_SMALL_WITH_PADDING \
108 ((NET_SKB_PAD + IXGBE_RXBUFFER_1536) > SKB_WITH_OVERHEAD(IXGBE_RXBUFFER_2K))
110 static inline int ixgbe_compute_pad(int rx_buf_len)
112 int page_size, pad_size;
114 page_size = ALIGN(rx_buf_len, PAGE_SIZE / 2);
115 pad_size = SKB_WITH_OVERHEAD(page_size) - rx_buf_len;
120 static inline int ixgbe_skb_pad(void)
124 /* If a 2K buffer cannot handle a standard Ethernet frame then
125 * optimize padding for a 3K buffer instead of a 1.5K buffer.
127 * For a 3K buffer we need to add enough padding to allow for
128 * tailroom due to NET_IP_ALIGN possibly shifting us out of
129 * cache-line alignment.
131 if (IXGBE_2K_TOO_SMALL_WITH_PADDING)
132 rx_buf_len = IXGBE_RXBUFFER_3K + SKB_DATA_ALIGN(NET_IP_ALIGN);
134 rx_buf_len = IXGBE_RXBUFFER_1536;
136 /* if needed make room for NET_IP_ALIGN */
137 rx_buf_len -= NET_IP_ALIGN;
139 return ixgbe_compute_pad(rx_buf_len);
142 #define IXGBE_SKB_PAD ixgbe_skb_pad()
144 #define IXGBE_SKB_PAD (NET_SKB_PAD + NET_IP_ALIGN)
148 * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN means we
149 * reserve 64 more, and skb_shared_info adds an additional 320 bytes more,
150 * this adds up to 448 bytes of extra data.
152 * Since netdev_alloc_skb now allocates a page fragment we can use a value
153 * of 256 and the resultant skb will have a truesize of 960 or less.
155 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
157 /* How many Rx Buffers do we bundle into one write to the hardware ? */
158 #define IXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */
160 #define IXGBE_RX_DMA_ATTR \
161 (DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING)
163 enum ixgbe_tx_flags {
165 IXGBE_TX_FLAGS_HW_VLAN = 0x01,
166 IXGBE_TX_FLAGS_TSO = 0x02,
167 IXGBE_TX_FLAGS_TSTAMP = 0x04,
170 IXGBE_TX_FLAGS_CC = 0x08,
171 IXGBE_TX_FLAGS_IPV4 = 0x10,
172 IXGBE_TX_FLAGS_CSUM = 0x20,
174 /* software defined flags */
175 IXGBE_TX_FLAGS_SW_VLAN = 0x40,
176 IXGBE_TX_FLAGS_FCOE = 0x80,
180 #define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
181 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000
182 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29
183 #define IXGBE_TX_FLAGS_VLAN_SHIFT 16
185 #define IXGBE_MAX_VF_MC_ENTRIES 30
186 #define IXGBE_MAX_VF_FUNCTIONS 64
187 #define IXGBE_MAX_VFTA_ENTRIES 128
188 #define MAX_EMULATION_MAC_ADDRS 16
189 #define IXGBE_MAX_PF_MACVLANS 15
190 #define VMDQ_P(p) ((p) + adapter->ring_feature[RING_F_VMDQ].offset)
191 #define IXGBE_82599_VF_DEVICE_ID 0x10ED
192 #define IXGBE_X540_VF_DEVICE_ID 0x1515
194 struct vf_data_storage {
195 struct pci_dev *vfdev;
196 unsigned char vf_mac_addresses[ETH_ALEN];
197 u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
198 u16 num_vf_mc_hashes;
201 u16 pf_vlan; /* When set, guest VLAN config not allowed. */
205 bool rss_query_enabled;
211 enum ixgbevf_xcast_modes {
212 IXGBEVF_XCAST_MODE_NONE = 0,
213 IXGBEVF_XCAST_MODE_MULTI,
214 IXGBEVF_XCAST_MODE_ALLMULTI,
215 IXGBEVF_XCAST_MODE_PROMISC,
223 u8 vf_macvlan[ETH_ALEN];
226 #define IXGBE_MAX_TXD_PWR 14
227 #define IXGBE_MAX_DATA_PER_TXD (1u << IXGBE_MAX_TXD_PWR)
229 /* Tx Descriptors needed, worst case */
230 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IXGBE_MAX_DATA_PER_TXD)
231 #define DESC_NEEDED (MAX_SKB_FRAGS + 4)
233 /* wrapper around a pointer to a socket buffer,
234 * so a DMA handle can be stored along with the buffer */
235 struct ixgbe_tx_buffer {
236 union ixgbe_adv_tx_desc *next_to_watch;
237 unsigned long time_stamp;
239 unsigned int bytecount;
240 unsigned short gso_segs;
242 DEFINE_DMA_UNMAP_ADDR(dma);
243 DEFINE_DMA_UNMAP_LEN(len);
247 struct ixgbe_rx_buffer {
251 #if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536)
259 struct ixgbe_queue_stats {
264 struct ixgbe_tx_queue_stats {
270 struct ixgbe_rx_queue_stats {
274 u64 alloc_rx_page_failed;
275 u64 alloc_rx_buff_failed;
279 #define IXGBE_TS_HDR_LEN 8
281 enum ixgbe_ring_state_t {
282 __IXGBE_RX_3K_BUFFER,
283 __IXGBE_RX_BUILD_SKB_ENABLED,
284 __IXGBE_RX_RSC_ENABLED,
285 __IXGBE_RX_CSUM_UDP_ZERO_ERR,
287 __IXGBE_TX_FDIR_INIT_DONE,
288 __IXGBE_TX_XPS_INIT_DONE,
289 __IXGBE_TX_DETECT_HANG,
290 __IXGBE_HANG_CHECK_ARMED,
293 #define ring_uses_build_skb(ring) \
294 test_bit(__IXGBE_RX_BUILD_SKB_ENABLED, &(ring)->state)
296 struct ixgbe_fwd_adapter {
297 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
298 struct net_device *netdev;
299 struct ixgbe_adapter *real_adapter;
300 unsigned int tx_base_queue;
301 unsigned int rx_base_queue;
305 #define check_for_tx_hang(ring) \
306 test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
307 #define set_check_for_tx_hang(ring) \
308 set_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
309 #define clear_check_for_tx_hang(ring) \
310 clear_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
311 #define ring_is_rsc_enabled(ring) \
312 test_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
313 #define set_ring_rsc_enabled(ring) \
314 set_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
315 #define clear_ring_rsc_enabled(ring) \
316 clear_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
318 struct ixgbe_ring *next; /* pointer to next ring in q_vector */
319 struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */
320 struct net_device *netdev; /* netdev ring belongs to */
321 struct bpf_prog *xdp_prog;
322 struct device *dev; /* device for DMA mapping */
323 struct ixgbe_fwd_adapter *l2_accel_priv;
324 void *desc; /* descriptor ring memory */
326 struct ixgbe_tx_buffer *tx_buffer_info;
327 struct ixgbe_rx_buffer *rx_buffer_info;
331 dma_addr_t dma; /* phys. address of descriptor ring */
332 unsigned int size; /* length in bytes */
334 u16 count; /* amount of descriptors */
336 u8 queue_index; /* needed for multiqueue queue management */
337 u8 reg_idx; /* holds the special value that gets
338 * the hardware register offset
339 * associated with this ring, which is
340 * different for DCB and RSS modes
345 unsigned long last_rx_timestamp;
356 struct ixgbe_queue_stats stats;
357 struct u64_stats_sync syncp;
359 struct ixgbe_tx_queue_stats tx_stats;
360 struct ixgbe_rx_queue_stats rx_stats;
362 } ____cacheline_internodealigned_in_smp;
364 enum ixgbe_ring_f_enum {
366 RING_F_VMDQ, /* SR-IOV uses the same ring feature */
371 #endif /* IXGBE_FCOE */
373 RING_F_ARRAY_SIZE /* must be last in enum set */
376 #define IXGBE_MAX_RSS_INDICES 16
377 #define IXGBE_MAX_RSS_INDICES_X550 63
378 #define IXGBE_MAX_VMDQ_INDICES 64
379 #define IXGBE_MAX_FDIR_INDICES 63 /* based on q_vector limit */
380 #define IXGBE_MAX_FCOE_INDICES 8
381 #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
382 #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
383 #define IXGBE_MAX_L2A_QUEUES 4
384 #define IXGBE_BAD_L2A_QUEUE 3
385 #define IXGBE_MAX_MACVLANS 31
386 #define IXGBE_MAX_DCBMACVLANS 8
388 struct ixgbe_ring_feature {
389 u16 limit; /* upper limit on feature indices */
390 u16 indices; /* current value of indices */
391 u16 mask; /* Mask used for feature to ring mapping */
392 u16 offset; /* offset to start of feature */
393 } ____cacheline_internodealigned_in_smp;
395 #define IXGBE_82599_VMDQ_8Q_MASK 0x78
396 #define IXGBE_82599_VMDQ_4Q_MASK 0x7C
397 #define IXGBE_82599_VMDQ_2Q_MASK 0x7E
400 * FCoE requires that all Rx buffers be over 2200 bytes in length. Since
401 * this is twice the size of a half page we need to double the page order
402 * for FCoE enabled Rx queues.
404 static inline unsigned int ixgbe_rx_bufsz(struct ixgbe_ring *ring)
406 if (test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
407 return IXGBE_RXBUFFER_3K;
408 #if (PAGE_SIZE < 8192)
409 if (ring_uses_build_skb(ring))
410 return IXGBE_MAX_2K_FRAME_BUILD_SKB;
412 return IXGBE_RXBUFFER_2K;
415 static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
417 #if (PAGE_SIZE < 8192)
418 if (test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
423 #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
425 struct ixgbe_ring_container {
426 struct ixgbe_ring *ring; /* pointer to linked list of rings */
427 unsigned int total_bytes; /* total bytes processed this int */
428 unsigned int total_packets; /* total packets processed this int */
429 u16 work_limit; /* total work allowed per interrupt */
430 u8 count; /* total number of rings in vector */
431 u8 itr; /* current ITR setting for ring */
434 /* iterator for handling rings in ring container */
435 #define ixgbe_for_each_ring(pos, head) \
436 for (pos = (head).ring; pos != NULL; pos = pos->next)
438 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
440 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
442 /* MAX_Q_VECTORS of these are allocated,
443 * but we only use one per queue-specific vector.
445 struct ixgbe_q_vector {
446 struct ixgbe_adapter *adapter;
447 #ifdef CONFIG_IXGBE_DCA
448 int cpu; /* CPU for DCA */
450 u16 v_idx; /* index of q_vector within array, also used for
451 * finding the bit in EICR and friends that
452 * represents the vector for this ring */
453 u16 itr; /* Interrupt throttle rate written to EITR */
454 struct ixgbe_ring_container rx, tx;
456 struct napi_struct napi;
457 cpumask_t affinity_mask;
459 struct rcu_head rcu; /* to avoid race with update stats on free */
460 char name[IFNAMSIZ + 9];
462 /* for dynamic allocation of rings associated with this q_vector */
463 struct ixgbe_ring ring[0] ____cacheline_internodealigned_in_smp;
466 #ifdef CONFIG_IXGBE_HWMON
468 #define IXGBE_HWMON_TYPE_LOC 0
469 #define IXGBE_HWMON_TYPE_TEMP 1
470 #define IXGBE_HWMON_TYPE_CAUTION 2
471 #define IXGBE_HWMON_TYPE_MAX 3
474 struct device_attribute dev_attr;
476 struct ixgbe_thermal_diode_data *sensor;
481 struct attribute_group group;
482 const struct attribute_group *groups[2];
483 struct attribute *attrs[IXGBE_MAX_SENSORS * 4 + 1];
484 struct hwmon_attr hwmon_list[IXGBE_MAX_SENSORS * 4];
485 unsigned int n_hwmon;
487 #endif /* CONFIG_IXGBE_HWMON */
490 * microsecond values for various ITR rates shifted by 2 to fit itr register
491 * with the first 3 bits reserved 0
493 #define IXGBE_MIN_RSC_ITR 24
494 #define IXGBE_100K_ITR 40
495 #define IXGBE_20K_ITR 200
496 #define IXGBE_12K_ITR 336
498 /* ixgbe_test_staterr - tests bits in Rx descriptor status and error fields */
499 static inline __le32 ixgbe_test_staterr(union ixgbe_adv_rx_desc *rx_desc,
500 const u32 stat_err_bits)
502 return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
505 static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring)
507 u16 ntc = ring->next_to_clean;
508 u16 ntu = ring->next_to_use;
510 return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
513 #define IXGBE_RX_DESC(R, i) \
514 (&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
515 #define IXGBE_TX_DESC(R, i) \
516 (&(((union ixgbe_adv_tx_desc *)((R)->desc))[i]))
517 #define IXGBE_TX_CTXTDESC(R, i) \
518 (&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i]))
520 #define IXGBE_MAX_JUMBO_FRAME_SIZE 9728 /* Maximum Supported Size 9.5KB */
522 /* Use 3K as the baby jumbo frame size for FCoE */
523 #define IXGBE_FCOE_JUMBO_FRAME_SIZE 3072
524 #endif /* IXGBE_FCOE */
526 #define OTHER_VECTOR 1
527 #define NON_Q_VECTORS (OTHER_VECTOR)
529 #define MAX_MSIX_VECTORS_82599 64
530 #define MAX_Q_VECTORS_82599 64
531 #define MAX_MSIX_VECTORS_82598 18
532 #define MAX_Q_VECTORS_82598 16
534 struct ixgbe_mac_addr {
537 u16 state; /* bitmask */
540 #define IXGBE_MAC_STATE_DEFAULT 0x1
541 #define IXGBE_MAC_STATE_MODIFIED 0x2
542 #define IXGBE_MAC_STATE_IN_USE 0x4
544 #define MAX_Q_VECTORS MAX_Q_VECTORS_82599
545 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
547 #define MIN_MSIX_Q_VECTORS 1
548 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
550 /* default to trying for four seconds */
551 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
552 #define IXGBE_SFP_POLL_JIFFIES (2 * HZ) /* SFP poll every 2 seconds */
554 /* board specific private data structure */
555 struct ixgbe_adapter {
556 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
557 /* OS defined structs */
558 struct net_device *netdev;
559 struct bpf_prog *xdp_prog;
560 struct pci_dev *pdev;
564 /* Some features need tri-state capability,
565 * thus the additional *_CAPABLE flags.
568 #define IXGBE_FLAG_MSI_ENABLED BIT(1)
569 #define IXGBE_FLAG_MSIX_ENABLED BIT(3)
570 #define IXGBE_FLAG_RX_1BUF_CAPABLE BIT(4)
571 #define IXGBE_FLAG_RX_PS_CAPABLE BIT(5)
572 #define IXGBE_FLAG_RX_PS_ENABLED BIT(6)
573 #define IXGBE_FLAG_DCA_ENABLED BIT(8)
574 #define IXGBE_FLAG_DCA_CAPABLE BIT(9)
575 #define IXGBE_FLAG_IMIR_ENABLED BIT(10)
576 #define IXGBE_FLAG_MQ_CAPABLE BIT(11)
577 #define IXGBE_FLAG_DCB_ENABLED BIT(12)
578 #define IXGBE_FLAG_VMDQ_CAPABLE BIT(13)
579 #define IXGBE_FLAG_VMDQ_ENABLED BIT(14)
580 #define IXGBE_FLAG_FAN_FAIL_CAPABLE BIT(15)
581 #define IXGBE_FLAG_NEED_LINK_UPDATE BIT(16)
582 #define IXGBE_FLAG_NEED_LINK_CONFIG BIT(17)
583 #define IXGBE_FLAG_FDIR_HASH_CAPABLE BIT(18)
584 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE BIT(19)
585 #define IXGBE_FLAG_FCOE_CAPABLE BIT(20)
586 #define IXGBE_FLAG_FCOE_ENABLED BIT(21)
587 #define IXGBE_FLAG_SRIOV_CAPABLE BIT(22)
588 #define IXGBE_FLAG_SRIOV_ENABLED BIT(23)
589 #define IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE BIT(24)
590 #define IXGBE_FLAG_RX_HWTSTAMP_ENABLED BIT(25)
591 #define IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER BIT(26)
592 #define IXGBE_FLAG_DCB_CAPABLE BIT(27)
593 #define IXGBE_FLAG_GENEVE_OFFLOAD_CAPABLE BIT(28)
596 #define IXGBE_FLAG2_RSC_CAPABLE BIT(0)
597 #define IXGBE_FLAG2_RSC_ENABLED BIT(1)
598 #define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE BIT(2)
599 #define IXGBE_FLAG2_TEMP_SENSOR_EVENT BIT(3)
600 #define IXGBE_FLAG2_SEARCH_FOR_SFP BIT(4)
601 #define IXGBE_FLAG2_SFP_NEEDS_RESET BIT(5)
602 #define IXGBE_FLAG2_FDIR_REQUIRES_REINIT BIT(7)
603 #define IXGBE_FLAG2_RSS_FIELD_IPV4_UDP BIT(8)
604 #define IXGBE_FLAG2_RSS_FIELD_IPV6_UDP BIT(9)
605 #define IXGBE_FLAG2_PTP_PPS_ENABLED BIT(10)
606 #define IXGBE_FLAG2_PHY_INTERRUPT BIT(11)
607 #define IXGBE_FLAG2_UDP_TUN_REREG_NEEDED BIT(12)
608 #define IXGBE_FLAG2_VLAN_PROMISC BIT(13)
609 #define IXGBE_FLAG2_EEE_CAPABLE BIT(14)
610 #define IXGBE_FLAG2_EEE_ENABLED BIT(15)
611 #define IXGBE_FLAG2_RX_LEGACY BIT(16)
613 /* Tx fast path data */
618 /* Rx fast path data */
622 /* Port number used to identify VXLAN traffic */
627 struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
631 u32 tx_timeout_count;
634 struct ixgbe_ring *rx_ring[MAX_RX_QUEUES];
635 int num_rx_pools; /* == num_rx_queues in 82598 */
636 int num_rx_queues_per_pool; /* 1 if 82598, can be many if 82599 */
637 u64 hw_csum_rx_error;
638 u64 hw_rx_no_dma_resources;
642 u32 alloc_rx_page_failed;
643 u32 alloc_rx_buff_failed;
645 struct ixgbe_q_vector *q_vector[MAX_Q_VECTORS];
648 struct ieee_pfc *ixgbe_ieee_pfc;
649 struct ieee_ets *ixgbe_ieee_ets;
650 struct ixgbe_dcb_config dcb_cfg;
651 struct ixgbe_dcb_config temp_dcb_cfg;
654 enum ixgbe_fc_mode last_lfc_mode;
656 int num_q_vectors; /* current number of q_vectors for device */
657 int max_q_vectors; /* true count of q_vectors for device */
658 struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
659 struct msix_entry *msix_entries;
662 struct ixgbe_ring test_tx_ring;
663 struct ixgbe_ring test_rx_ring;
665 /* structs defined in ixgbe_hw.h */
668 struct ixgbe_hw_stats stats;
671 unsigned int tx_ring_count;
672 unsigned int rx_ring_count;
676 unsigned long sfp_poll_time;
677 unsigned long link_check_timeout;
679 struct timer_list service_timer;
680 struct work_struct service_task;
682 struct hlist_head fdir_filter_list;
683 unsigned long fdir_overflow; /* number of times ATR was backed off */
684 union ixgbe_atr_input fdir_mask;
685 int fdir_filter_count;
688 spinlock_t fdir_perfect_lock;
691 struct ixgbe_fcoe fcoe;
692 #endif /* IXGBE_FCOE */
693 u8 __iomem *io_addr; /* Mainly for iounmap use */
705 struct ptp_clock *ptp_clock;
706 struct ptp_clock_info ptp_caps;
707 struct work_struct ptp_tx_work;
708 struct sk_buff *ptp_tx_skb;
709 struct hwtstamp_config tstamp_config;
710 unsigned long ptp_tx_start;
711 unsigned long last_overflow_check;
712 unsigned long last_rx_ptp_check;
713 unsigned long last_rx_timestamp;
714 spinlock_t tmreg_lock;
715 struct cyclecounter hw_cc;
716 struct timecounter hw_tc;
718 u32 tx_hwtstamp_timeouts;
719 u32 rx_hwtstamp_cleared;
720 void (*ptp_setup_sdp)(struct ixgbe_adapter *);
723 DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
724 unsigned int num_vfs;
725 struct vf_data_storage *vfinfo;
726 int vf_rate_link_speed;
727 struct vf_macvlans vf_mvs;
728 struct vf_macvlans *mv_list;
730 u32 timer_event_accumulator;
732 struct ixgbe_mac_addr *mac_table;
733 struct kobject *info_kobj;
734 #ifdef CONFIG_IXGBE_HWMON
735 struct hwmon_buff *ixgbe_hwmon_buff;
736 #endif /* CONFIG_IXGBE_HWMON */
737 #ifdef CONFIG_DEBUG_FS
738 struct dentry *ixgbe_dbg_adapter;
739 #endif /*CONFIG_DEBUG_FS*/
742 unsigned long fwd_bitmask; /* Bitmask indicating in use pools */
744 #define IXGBE_MAX_LINK_HANDLE 10
745 struct ixgbe_jump_table *jump_tables[IXGBE_MAX_LINK_HANDLE];
746 unsigned long tables;
748 /* maximum number of RETA entries among all devices supported by ixgbe
749 * driver: currently it's x550 device in non-SRIOV mode
751 #define IXGBE_MAX_RETA_ENTRIES 512
752 u8 rss_indir_tbl[IXGBE_MAX_RETA_ENTRIES];
754 #define IXGBE_RSS_KEY_SIZE 40 /* size of RSS Hash Key in bytes */
755 u32 rss_key[IXGBE_RSS_KEY_SIZE / sizeof(u32)];
758 static inline u8 ixgbe_max_rss_indices(struct ixgbe_adapter *adapter)
760 switch (adapter->hw.mac.type) {
761 case ixgbe_mac_82598EB:
762 case ixgbe_mac_82599EB:
764 return IXGBE_MAX_RSS_INDICES;
766 case ixgbe_mac_X550EM_x:
767 case ixgbe_mac_x550em_a:
768 return IXGBE_MAX_RSS_INDICES_X550;
774 struct ixgbe_fdir_filter {
775 struct hlist_node fdir_node;
776 union ixgbe_atr_input filter;
787 __IXGBE_SERVICE_SCHED,
788 __IXGBE_SERVICE_INITED,
791 __IXGBE_PTP_TX_IN_PROGRESS,
792 __IXGBE_RESET_REQUESTED,
796 union { /* Union defining head/tail partner */
797 struct sk_buff *head;
798 struct sk_buff *tail;
804 #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb)
816 extern const struct ixgbe_info ixgbe_82598_info;
817 extern const struct ixgbe_info ixgbe_82599_info;
818 extern const struct ixgbe_info ixgbe_X540_info;
819 extern const struct ixgbe_info ixgbe_X550_info;
820 extern const struct ixgbe_info ixgbe_X550EM_x_info;
821 extern const struct ixgbe_info ixgbe_x550em_a_info;
822 extern const struct ixgbe_info ixgbe_x550em_a_fw_info;
823 #ifdef CONFIG_IXGBE_DCB
824 extern const struct dcbnl_rtnl_ops ixgbe_dcbnl_ops;
827 extern char ixgbe_driver_name[];
828 extern const char ixgbe_driver_version[];
830 extern char ixgbe_default_device_descr[];
831 #endif /* IXGBE_FCOE */
833 int ixgbe_open(struct net_device *netdev);
834 int ixgbe_close(struct net_device *netdev);
835 void ixgbe_up(struct ixgbe_adapter *adapter);
836 void ixgbe_down(struct ixgbe_adapter *adapter);
837 void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
838 void ixgbe_reset(struct ixgbe_adapter *adapter);
839 void ixgbe_set_ethtool_ops(struct net_device *netdev);
840 int ixgbe_setup_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
841 int ixgbe_setup_tx_resources(struct ixgbe_ring *);
842 void ixgbe_free_rx_resources(struct ixgbe_ring *);
843 void ixgbe_free_tx_resources(struct ixgbe_ring *);
844 void ixgbe_configure_rx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
845 void ixgbe_configure_tx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
846 void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, struct ixgbe_ring *);
847 void ixgbe_update_stats(struct ixgbe_adapter *adapter);
848 int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
849 bool ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
851 #ifdef CONFIG_PCI_IOV
852 void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter);
854 int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter,
855 const u8 *addr, u16 queue);
856 int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter,
857 const u8 *addr, u16 queue);
858 void ixgbe_update_pf_promisc_vlvf(struct ixgbe_adapter *adapter, u32 vid);
859 void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
860 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *, struct ixgbe_adapter *,
861 struct ixgbe_ring *);
862 void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *,
863 struct ixgbe_tx_buffer *);
864 void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
865 void ixgbe_write_eitr(struct ixgbe_q_vector *);
866 int ixgbe_poll(struct napi_struct *napi, int budget);
867 int ethtool_ioctl(struct ifreq *ifr);
868 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
869 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
870 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
871 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
872 union ixgbe_atr_hash_dword input,
873 union ixgbe_atr_hash_dword common,
875 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
876 union ixgbe_atr_input *input_mask);
877 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
878 union ixgbe_atr_input *input,
879 u16 soft_id, u8 queue);
880 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
881 union ixgbe_atr_input *input,
883 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
884 union ixgbe_atr_input *mask);
885 int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
886 struct ixgbe_fdir_filter *input,
888 void ixgbe_set_rx_mode(struct net_device *netdev);
889 #ifdef CONFIG_IXGBE_DCB
890 void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter);
892 int ixgbe_setup_tc(struct net_device *dev, u8 tc);
893 void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
894 void ixgbe_do_reset(struct net_device *netdev);
895 #ifdef CONFIG_IXGBE_HWMON
896 void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
897 int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
898 #endif /* CONFIG_IXGBE_HWMON */
900 void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
901 int ixgbe_fso(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first,
903 int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
904 union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb);
905 int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
906 struct scatterlist *sgl, unsigned int sgc);
907 int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
908 struct scatterlist *sgl, unsigned int sgc);
909 int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
910 int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
911 void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
912 int ixgbe_fcoe_enable(struct net_device *netdev);
913 int ixgbe_fcoe_disable(struct net_device *netdev);
914 #ifdef CONFIG_IXGBE_DCB
915 u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
916 u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
917 #endif /* CONFIG_IXGBE_DCB */
918 int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
919 int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
920 struct netdev_fcoe_hbainfo *info);
921 u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
922 #endif /* IXGBE_FCOE */
923 #ifdef CONFIG_DEBUG_FS
924 void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
925 void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
926 void ixgbe_dbg_init(void);
927 void ixgbe_dbg_exit(void);
929 static inline void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter) {}
930 static inline void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter) {}
931 static inline void ixgbe_dbg_init(void) {}
932 static inline void ixgbe_dbg_exit(void) {}
933 #endif /* CONFIG_DEBUG_FS */
934 static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
936 return netdev_get_tx_queue(ring->netdev, ring->queue_index);
939 void ixgbe_ptp_init(struct ixgbe_adapter *adapter);
940 void ixgbe_ptp_suspend(struct ixgbe_adapter *adapter);
941 void ixgbe_ptp_stop(struct ixgbe_adapter *adapter);
942 void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter);
943 void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter);
944 void ixgbe_ptp_rx_pktstamp(struct ixgbe_q_vector *, struct sk_buff *);
945 void ixgbe_ptp_rx_rgtstamp(struct ixgbe_q_vector *, struct sk_buff *skb);
946 static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring,
947 union ixgbe_adv_rx_desc *rx_desc,
950 if (unlikely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_TSIP))) {
951 ixgbe_ptp_rx_pktstamp(rx_ring->q_vector, skb);
955 if (unlikely(!ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS)))
958 ixgbe_ptp_rx_rgtstamp(rx_ring->q_vector, skb);
960 /* Update the last_rx_timestamp timer in order to enable watchdog check
961 * for error case of latched timestamp on a dropped packet.
963 rx_ring->last_rx_timestamp = jiffies;
966 int ixgbe_ptp_set_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr);
967 int ixgbe_ptp_get_ts_config(struct ixgbe_adapter *adapter, struct ifreq *ifr);
968 void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
969 void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
970 void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter);
971 #ifdef CONFIG_PCI_IOV
972 void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter);
975 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
976 struct ixgbe_adapter *adapter,
977 struct ixgbe_ring *tx_ring);
978 u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter);
979 void ixgbe_store_key(struct ixgbe_adapter *adapter);
980 void ixgbe_store_reta(struct ixgbe_adapter *adapter);
981 s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
982 u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm);
983 #endif /* _IXGBE_H_ */