1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2013 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 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *******************************************************************************/
31 #include <linux/bitops.h>
32 #include <linux/types.h>
33 #include <linux/pci.h>
34 #include <linux/netdevice.h>
35 #include <linux/cpumask.h>
36 #include <linux/aer.h>
37 #include <linux/if_vlan.h>
38 #include <linux/jiffies.h>
40 #include <linux/clocksource.h>
41 #include <linux/net_tstamp.h>
42 #include <linux/ptp_clock_kernel.h>
44 #include "ixgbe_type.h"
45 #include "ixgbe_common.h"
46 #include "ixgbe_dcb.h"
47 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
49 #include "ixgbe_fcoe.h"
50 #endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */
51 #ifdef CONFIG_IXGBE_DCA
52 #include <linux/dca.h>
55 #include <net/busy_poll.h>
57 #ifdef CONFIG_NET_RX_BUSY_POLL
58 #define LL_EXTENDED_STATS
60 /* common prefix used by pr_<> macros */
62 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
64 /* TX/RX descriptor defines */
65 #define IXGBE_DEFAULT_TXD 512
66 #define IXGBE_DEFAULT_TX_WORK 256
67 #define IXGBE_MAX_TXD 4096
68 #define IXGBE_MIN_TXD 64
70 #define IXGBE_DEFAULT_RXD 512
71 #define IXGBE_MAX_RXD 4096
72 #define IXGBE_MIN_RXD 64
75 #define IXGBE_MIN_FCRTL 0x40
76 #define IXGBE_MAX_FCRTL 0x7FF80
77 #define IXGBE_MIN_FCRTH 0x600
78 #define IXGBE_MAX_FCRTH 0x7FFF0
79 #define IXGBE_DEFAULT_FCPAUSE 0xFFFF
80 #define IXGBE_MIN_FCPAUSE 0
81 #define IXGBE_MAX_FCPAUSE 0xFFFF
83 /* Supported Rx Buffer Sizes */
84 #define IXGBE_RXBUFFER_256 256 /* Used for skb receive header */
85 #define IXGBE_RXBUFFER_2K 2048
86 #define IXGBE_RXBUFFER_3K 3072
87 #define IXGBE_RXBUFFER_4K 4096
88 #define IXGBE_MAX_RXBUFFER 16384 /* largest size for a single descriptor */
91 * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN means we
92 * reserve 64 more, and skb_shared_info adds an additional 320 bytes more,
93 * this adds up to 448 bytes of extra data.
95 * Since netdev_alloc_skb now allocates a page fragment we can use a value
96 * of 256 and the resultant skb will have a truesize of 960 or less.
98 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
100 /* How many Rx Buffers do we bundle into one write to the hardware ? */
101 #define IXGBE_RX_BUFFER_WRITE 16 /* Must be power of 2 */
103 enum ixgbe_tx_flags {
105 IXGBE_TX_FLAGS_HW_VLAN = 0x01,
106 IXGBE_TX_FLAGS_TSO = 0x02,
107 IXGBE_TX_FLAGS_TSTAMP = 0x04,
110 IXGBE_TX_FLAGS_CC = 0x08,
111 IXGBE_TX_FLAGS_IPV4 = 0x10,
112 IXGBE_TX_FLAGS_CSUM = 0x20,
114 /* software defined flags */
115 IXGBE_TX_FLAGS_SW_VLAN = 0x40,
116 IXGBE_TX_FLAGS_FCOE = 0x80,
120 #define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
121 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000
122 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29
123 #define IXGBE_TX_FLAGS_VLAN_SHIFT 16
125 #define IXGBE_MAX_VF_MC_ENTRIES 30
126 #define IXGBE_MAX_VF_FUNCTIONS 64
127 #define IXGBE_MAX_VFTA_ENTRIES 128
128 #define MAX_EMULATION_MAC_ADDRS 16
129 #define IXGBE_MAX_PF_MACVLANS 15
130 #define VMDQ_P(p) ((p) + adapter->ring_feature[RING_F_VMDQ].offset)
131 #define IXGBE_82599_VF_DEVICE_ID 0x10ED
132 #define IXGBE_X540_VF_DEVICE_ID 0x1515
134 struct vf_data_storage {
135 unsigned char vf_mac_addresses[ETH_ALEN];
136 u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
137 u16 num_vf_mc_hashes;
138 u16 default_vf_vlan_id;
142 u16 pf_vlan; /* When set, guest VLAN config not allowed. */
156 u8 vf_macvlan[ETH_ALEN];
159 #define IXGBE_MAX_TXD_PWR 14
160 #define IXGBE_MAX_DATA_PER_TXD (1 << IXGBE_MAX_TXD_PWR)
162 /* Tx Descriptors needed, worst case */
163 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IXGBE_MAX_DATA_PER_TXD)
164 #define DESC_NEEDED (MAX_SKB_FRAGS + 4)
166 /* wrapper around a pointer to a socket buffer,
167 * so a DMA handle can be stored along with the buffer */
168 struct ixgbe_tx_buffer {
169 union ixgbe_adv_tx_desc *next_to_watch;
170 unsigned long time_stamp;
172 unsigned int bytecount;
173 unsigned short gso_segs;
175 DEFINE_DMA_UNMAP_ADDR(dma);
176 DEFINE_DMA_UNMAP_LEN(len);
180 struct ixgbe_rx_buffer {
184 unsigned int page_offset;
187 struct ixgbe_queue_stats {
190 #ifdef LL_EXTENDED_STATS
194 #endif /* LL_EXTENDED_STATS */
197 struct ixgbe_tx_queue_stats {
203 struct ixgbe_rx_queue_stats {
207 u64 alloc_rx_page_failed;
208 u64 alloc_rx_buff_failed;
212 enum ixgbe_ring_state_t {
213 __IXGBE_TX_FDIR_INIT_DONE,
214 __IXGBE_TX_XPS_INIT_DONE,
215 __IXGBE_TX_DETECT_HANG,
216 __IXGBE_HANG_CHECK_ARMED,
217 __IXGBE_RX_RSC_ENABLED,
218 __IXGBE_RX_CSUM_UDP_ZERO_ERR,
222 #define check_for_tx_hang(ring) \
223 test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
224 #define set_check_for_tx_hang(ring) \
225 set_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
226 #define clear_check_for_tx_hang(ring) \
227 clear_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
228 #define ring_is_rsc_enabled(ring) \
229 test_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
230 #define set_ring_rsc_enabled(ring) \
231 set_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
232 #define clear_ring_rsc_enabled(ring) \
233 clear_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
235 struct ixgbe_ring *next; /* pointer to next ring in q_vector */
236 struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */
237 struct net_device *netdev; /* netdev ring belongs to */
238 struct device *dev; /* device for DMA mapping */
239 void *desc; /* descriptor ring memory */
241 struct ixgbe_tx_buffer *tx_buffer_info;
242 struct ixgbe_rx_buffer *rx_buffer_info;
244 unsigned long last_rx_timestamp;
247 dma_addr_t dma; /* phys. address of descriptor ring */
248 unsigned int size; /* length in bytes */
250 u16 count; /* amount of descriptors */
252 u8 queue_index; /* needed for multiqueue queue management */
253 u8 reg_idx; /* holds the special value that gets
254 * the hardware register offset
255 * associated with this ring, which is
256 * different for DCB and RSS modes
270 struct ixgbe_queue_stats stats;
271 struct u64_stats_sync syncp;
273 struct ixgbe_tx_queue_stats tx_stats;
274 struct ixgbe_rx_queue_stats rx_stats;
276 } ____cacheline_internodealigned_in_smp;
278 enum ixgbe_ring_f_enum {
280 RING_F_VMDQ, /* SR-IOV uses the same ring feature */
285 #endif /* IXGBE_FCOE */
287 RING_F_ARRAY_SIZE /* must be last in enum set */
290 #define IXGBE_MAX_RSS_INDICES 16
291 #define IXGBE_MAX_VMDQ_INDICES 64
292 #define IXGBE_MAX_FDIR_INDICES 63 /* based on q_vector limit */
293 #define IXGBE_MAX_FCOE_INDICES 8
294 #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
295 #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
296 struct ixgbe_ring_feature {
297 u16 limit; /* upper limit on feature indices */
298 u16 indices; /* current value of indices */
299 u16 mask; /* Mask used for feature to ring mapping */
300 u16 offset; /* offset to start of feature */
301 } ____cacheline_internodealigned_in_smp;
303 #define IXGBE_82599_VMDQ_8Q_MASK 0x78
304 #define IXGBE_82599_VMDQ_4Q_MASK 0x7C
305 #define IXGBE_82599_VMDQ_2Q_MASK 0x7E
308 * FCoE requires that all Rx buffers be over 2200 bytes in length. Since
309 * this is twice the size of a half page we need to double the page order
310 * for FCoE enabled Rx queues.
312 static inline unsigned int ixgbe_rx_bufsz(struct ixgbe_ring *ring)
315 if (test_bit(__IXGBE_RX_FCOE, &ring->state))
316 return (PAGE_SIZE < 8192) ? IXGBE_RXBUFFER_4K :
319 return IXGBE_RXBUFFER_2K;
322 static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
325 if (test_bit(__IXGBE_RX_FCOE, &ring->state))
326 return (PAGE_SIZE < 8192) ? 1 : 0;
330 #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
332 struct ixgbe_ring_container {
333 struct ixgbe_ring *ring; /* pointer to linked list of rings */
334 unsigned int total_bytes; /* total bytes processed this int */
335 unsigned int total_packets; /* total packets processed this int */
336 u16 work_limit; /* total work allowed per interrupt */
337 u8 count; /* total number of rings in vector */
338 u8 itr; /* current ITR setting for ring */
341 /* iterator for handling rings in ring container */
342 #define ixgbe_for_each_ring(pos, head) \
343 for (pos = (head).ring; pos != NULL; pos = pos->next)
345 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
347 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
349 /* MAX_Q_VECTORS of these are allocated,
350 * but we only use one per queue-specific vector.
352 struct ixgbe_q_vector {
353 struct ixgbe_adapter *adapter;
354 #ifdef CONFIG_IXGBE_DCA
355 int cpu; /* CPU for DCA */
357 u16 v_idx; /* index of q_vector within array, also used for
358 * finding the bit in EICR and friends that
359 * represents the vector for this ring */
360 u16 itr; /* Interrupt throttle rate written to EITR */
361 struct ixgbe_ring_container rx, tx;
363 struct napi_struct napi;
364 cpumask_t affinity_mask;
366 struct rcu_head rcu; /* to avoid race with update stats on free */
367 char name[IFNAMSIZ + 9];
369 #ifdef CONFIG_NET_RX_BUSY_POLL
371 #define IXGBE_QV_STATE_IDLE 0
372 #define IXGBE_QV_STATE_NAPI 1 /* NAPI owns this QV */
373 #define IXGBE_QV_STATE_POLL 2 /* poll owns this QV */
374 #define IXGBE_QV_LOCKED (IXGBE_QV_STATE_NAPI | IXGBE_QV_STATE_POLL)
375 #define IXGBE_QV_STATE_NAPI_YIELD 4 /* NAPI yielded this QV */
376 #define IXGBE_QV_STATE_POLL_YIELD 8 /* poll yielded this QV */
377 #define IXGBE_QV_YIELD (IXGBE_QV_STATE_NAPI_YIELD | IXGBE_QV_STATE_POLL_YIELD)
378 #define IXGBE_QV_USER_PEND (IXGBE_QV_STATE_POLL | IXGBE_QV_STATE_POLL_YIELD)
380 #endif /* CONFIG_NET_RX_BUSY_POLL */
382 /* for dynamic allocation of rings associated with this q_vector */
383 struct ixgbe_ring ring[0] ____cacheline_internodealigned_in_smp;
385 #ifdef CONFIG_NET_RX_BUSY_POLL
386 static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector)
389 spin_lock_init(&q_vector->lock);
390 q_vector->state = IXGBE_QV_STATE_IDLE;
393 /* called from the device poll routine to get ownership of a q_vector */
394 static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
397 spin_lock(&q_vector->lock);
398 if (q_vector->state & IXGBE_QV_LOCKED) {
399 WARN_ON(q_vector->state & IXGBE_QV_STATE_NAPI);
400 q_vector->state |= IXGBE_QV_STATE_NAPI_YIELD;
402 #ifdef LL_EXTENDED_STATS
403 q_vector->tx.ring->stats.yields++;
406 /* we don't care if someone yielded */
407 q_vector->state = IXGBE_QV_STATE_NAPI;
408 spin_unlock(&q_vector->lock);
412 /* returns true is someone tried to get the qv while napi had it */
413 static inline bool ixgbe_qv_unlock_napi(struct ixgbe_q_vector *q_vector)
416 spin_lock(&q_vector->lock);
417 WARN_ON(q_vector->state & (IXGBE_QV_STATE_POLL |
418 IXGBE_QV_STATE_NAPI_YIELD));
420 if (q_vector->state & IXGBE_QV_STATE_POLL_YIELD)
422 q_vector->state = IXGBE_QV_STATE_IDLE;
423 spin_unlock(&q_vector->lock);
427 /* called from ixgbe_low_latency_poll() */
428 static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector)
431 spin_lock_bh(&q_vector->lock);
432 if ((q_vector->state & IXGBE_QV_LOCKED)) {
433 q_vector->state |= IXGBE_QV_STATE_POLL_YIELD;
435 #ifdef LL_EXTENDED_STATS
436 q_vector->rx.ring->stats.yields++;
439 /* preserve yield marks */
440 q_vector->state |= IXGBE_QV_STATE_POLL;
441 spin_unlock_bh(&q_vector->lock);
445 /* returns true if someone tried to get the qv while it was locked */
446 static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector)
449 spin_lock_bh(&q_vector->lock);
450 WARN_ON(q_vector->state & (IXGBE_QV_STATE_NAPI));
452 if (q_vector->state & IXGBE_QV_STATE_POLL_YIELD)
454 q_vector->state = IXGBE_QV_STATE_IDLE;
455 spin_unlock_bh(&q_vector->lock);
459 /* true if a socket is polling, even if it did not get the lock */
460 static inline bool ixgbe_qv_ll_polling(struct ixgbe_q_vector *q_vector)
462 WARN_ON(!(q_vector->state & IXGBE_QV_LOCKED));
463 return q_vector->state & IXGBE_QV_USER_PEND;
465 #else /* CONFIG_NET_RX_BUSY_POLL */
466 static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector)
470 static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
475 static inline bool ixgbe_qv_unlock_napi(struct ixgbe_q_vector *q_vector)
480 static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector)
485 static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector)
490 static inline bool ixgbe_qv_ll_polling(struct ixgbe_q_vector *q_vector)
494 #endif /* CONFIG_NET_RX_BUSY_POLL */
496 #ifdef CONFIG_IXGBE_HWMON
498 #define IXGBE_HWMON_TYPE_LOC 0
499 #define IXGBE_HWMON_TYPE_TEMP 1
500 #define IXGBE_HWMON_TYPE_CAUTION 2
501 #define IXGBE_HWMON_TYPE_MAX 3
504 struct device_attribute dev_attr;
506 struct ixgbe_thermal_diode_data *sensor;
511 struct device *device;
512 struct hwmon_attr *hwmon_list;
513 unsigned int n_hwmon;
515 #endif /* CONFIG_IXGBE_HWMON */
518 * microsecond values for various ITR rates shifted by 2 to fit itr register
519 * with the first 3 bits reserved 0
521 #define IXGBE_MIN_RSC_ITR 24
522 #define IXGBE_100K_ITR 40
523 #define IXGBE_20K_ITR 200
524 #define IXGBE_10K_ITR 400
525 #define IXGBE_8K_ITR 500
527 /* ixgbe_test_staterr - tests bits in Rx descriptor status and error fields */
528 static inline __le32 ixgbe_test_staterr(union ixgbe_adv_rx_desc *rx_desc,
529 const u32 stat_err_bits)
531 return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
534 static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring)
536 u16 ntc = ring->next_to_clean;
537 u16 ntu = ring->next_to_use;
539 return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
542 #define IXGBE_RX_DESC(R, i) \
543 (&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
544 #define IXGBE_TX_DESC(R, i) \
545 (&(((union ixgbe_adv_tx_desc *)((R)->desc))[i]))
546 #define IXGBE_TX_CTXTDESC(R, i) \
547 (&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i]))
549 #define IXGBE_MAX_JUMBO_FRAME_SIZE 9728 /* Maximum Supported Size 9.5KB */
551 /* Use 3K as the baby jumbo frame size for FCoE */
552 #define IXGBE_FCOE_JUMBO_FRAME_SIZE 3072
553 #endif /* IXGBE_FCOE */
555 #define OTHER_VECTOR 1
556 #define NON_Q_VECTORS (OTHER_VECTOR)
558 #define MAX_MSIX_VECTORS_82599 64
559 #define MAX_Q_VECTORS_82599 64
560 #define MAX_MSIX_VECTORS_82598 18
561 #define MAX_Q_VECTORS_82598 16
563 #define MAX_Q_VECTORS MAX_Q_VECTORS_82599
564 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
566 #define MIN_MSIX_Q_VECTORS 1
567 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
569 /* default to trying for four seconds */
570 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
572 /* board specific private data structure */
573 struct ixgbe_adapter {
574 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
575 /* OS defined structs */
576 struct net_device *netdev;
577 struct pci_dev *pdev;
581 /* Some features need tri-state capability,
582 * thus the additional *_CAPABLE flags.
585 #define IXGBE_FLAG_MSI_CAPABLE (u32)(1 << 0)
586 #define IXGBE_FLAG_MSI_ENABLED (u32)(1 << 1)
587 #define IXGBE_FLAG_MSIX_CAPABLE (u32)(1 << 2)
588 #define IXGBE_FLAG_MSIX_ENABLED (u32)(1 << 3)
589 #define IXGBE_FLAG_RX_1BUF_CAPABLE (u32)(1 << 4)
590 #define IXGBE_FLAG_RX_PS_CAPABLE (u32)(1 << 5)
591 #define IXGBE_FLAG_RX_PS_ENABLED (u32)(1 << 6)
592 #define IXGBE_FLAG_IN_NETPOLL (u32)(1 << 7)
593 #define IXGBE_FLAG_DCA_ENABLED (u32)(1 << 8)
594 #define IXGBE_FLAG_DCA_CAPABLE (u32)(1 << 9)
595 #define IXGBE_FLAG_IMIR_ENABLED (u32)(1 << 10)
596 #define IXGBE_FLAG_MQ_CAPABLE (u32)(1 << 11)
597 #define IXGBE_FLAG_DCB_ENABLED (u32)(1 << 12)
598 #define IXGBE_FLAG_VMDQ_CAPABLE (u32)(1 << 13)
599 #define IXGBE_FLAG_VMDQ_ENABLED (u32)(1 << 14)
600 #define IXGBE_FLAG_FAN_FAIL_CAPABLE (u32)(1 << 15)
601 #define IXGBE_FLAG_NEED_LINK_UPDATE (u32)(1 << 16)
602 #define IXGBE_FLAG_NEED_LINK_CONFIG (u32)(1 << 17)
603 #define IXGBE_FLAG_FDIR_HASH_CAPABLE (u32)(1 << 18)
604 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE (u32)(1 << 19)
605 #define IXGBE_FLAG_FCOE_CAPABLE (u32)(1 << 20)
606 #define IXGBE_FLAG_FCOE_ENABLED (u32)(1 << 21)
607 #define IXGBE_FLAG_SRIOV_CAPABLE (u32)(1 << 22)
608 #define IXGBE_FLAG_SRIOV_ENABLED (u32)(1 << 23)
611 #define IXGBE_FLAG2_RSC_CAPABLE (u32)(1 << 0)
612 #define IXGBE_FLAG2_RSC_ENABLED (u32)(1 << 1)
613 #define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE (u32)(1 << 2)
614 #define IXGBE_FLAG2_TEMP_SENSOR_EVENT (u32)(1 << 3)
615 #define IXGBE_FLAG2_SEARCH_FOR_SFP (u32)(1 << 4)
616 #define IXGBE_FLAG2_SFP_NEEDS_RESET (u32)(1 << 5)
617 #define IXGBE_FLAG2_RESET_REQUESTED (u32)(1 << 6)
618 #define IXGBE_FLAG2_FDIR_REQUIRES_REINIT (u32)(1 << 7)
619 #define IXGBE_FLAG2_RSS_FIELD_IPV4_UDP (u32)(1 << 8)
620 #define IXGBE_FLAG2_RSS_FIELD_IPV6_UDP (u32)(1 << 9)
621 #define IXGBE_FLAG2_PTP_PPS_ENABLED (u32)(1 << 10)
622 #define IXGBE_FLAG2_BRIDGE_MODE_VEB (u32)(1 << 11)
624 /* Tx fast path data */
629 /* Rx fast path data */
634 struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
638 u32 tx_timeout_count;
641 struct ixgbe_ring *rx_ring[MAX_RX_QUEUES];
642 int num_rx_pools; /* == num_rx_queues in 82598 */
643 int num_rx_queues_per_pool; /* 1 if 82598, can be many if 82599 */
644 u64 hw_csum_rx_error;
645 u64 hw_rx_no_dma_resources;
649 u32 alloc_rx_page_failed;
650 u32 alloc_rx_buff_failed;
652 struct ixgbe_q_vector *q_vector[MAX_Q_VECTORS];
655 struct ieee_pfc *ixgbe_ieee_pfc;
656 struct ieee_ets *ixgbe_ieee_ets;
657 struct ixgbe_dcb_config dcb_cfg;
658 struct ixgbe_dcb_config temp_dcb_cfg;
661 enum ixgbe_fc_mode last_lfc_mode;
663 int num_q_vectors; /* current number of q_vectors for device */
664 int max_q_vectors; /* true count of q_vectors for device */
665 struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
666 struct msix_entry *msix_entries;
669 struct ixgbe_ring test_tx_ring;
670 struct ixgbe_ring test_rx_ring;
672 /* structs defined in ixgbe_hw.h */
675 struct ixgbe_hw_stats stats;
678 unsigned int tx_ring_count;
679 unsigned int rx_ring_count;
683 unsigned long link_check_timeout;
685 struct timer_list service_timer;
686 struct work_struct service_task;
688 struct hlist_head fdir_filter_list;
689 unsigned long fdir_overflow; /* number of times ATR was backed off */
690 union ixgbe_atr_input fdir_mask;
691 int fdir_filter_count;
694 spinlock_t fdir_perfect_lock;
697 struct ixgbe_fcoe fcoe;
698 #endif /* IXGBE_FCOE */
710 struct ptp_clock *ptp_clock;
711 struct ptp_clock_info ptp_caps;
712 struct work_struct ptp_tx_work;
713 struct sk_buff *ptp_tx_skb;
714 unsigned long ptp_tx_start;
715 unsigned long last_overflow_check;
716 unsigned long last_rx_ptp_check;
717 spinlock_t tmreg_lock;
718 struct cyclecounter cc;
719 struct timecounter tc;
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 kobject *info_kobj;
733 #ifdef CONFIG_IXGBE_HWMON
734 struct hwmon_buff ixgbe_hwmon_buff;
735 #endif /* CONFIG_IXGBE_HWMON */
736 #ifdef CONFIG_DEBUG_FS
737 struct dentry *ixgbe_dbg_adapter;
738 #endif /*CONFIG_DEBUG_FS*/
743 struct ixgbe_fdir_filter {
744 struct hlist_node fdir_node;
745 union ixgbe_atr_input filter;
754 __IXGBE_SERVICE_SCHED,
760 union { /* Union defining head/tail partner */
761 struct sk_buff *head;
762 struct sk_buff *tail;
768 #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb)
776 extern struct ixgbe_info ixgbe_82598_info;
777 extern struct ixgbe_info ixgbe_82599_info;
778 extern struct ixgbe_info ixgbe_X540_info;
779 #ifdef CONFIG_IXGBE_DCB
780 extern const struct dcbnl_rtnl_ops dcbnl_ops;
783 extern char ixgbe_driver_name[];
784 extern const char ixgbe_driver_version[];
786 extern char ixgbe_default_device_descr[];
787 #endif /* IXGBE_FCOE */
789 extern void ixgbe_up(struct ixgbe_adapter *adapter);
790 extern void ixgbe_down(struct ixgbe_adapter *adapter);
791 extern void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
792 extern void ixgbe_reset(struct ixgbe_adapter *adapter);
793 extern void ixgbe_set_ethtool_ops(struct net_device *netdev);
794 extern int ixgbe_setup_rx_resources(struct ixgbe_ring *);
795 extern int ixgbe_setup_tx_resources(struct ixgbe_ring *);
796 extern void ixgbe_free_rx_resources(struct ixgbe_ring *);
797 extern void ixgbe_free_tx_resources(struct ixgbe_ring *);
798 extern void ixgbe_configure_rx_ring(struct ixgbe_adapter *,struct ixgbe_ring *);
799 extern void ixgbe_configure_tx_ring(struct ixgbe_adapter *,struct ixgbe_ring *);
800 extern void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter,
801 struct ixgbe_ring *);
802 extern void ixgbe_update_stats(struct ixgbe_adapter *adapter);
803 extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
804 extern int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
806 extern void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
807 extern netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *,
808 struct ixgbe_adapter *,
809 struct ixgbe_ring *);
810 extern void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *,
811 struct ixgbe_tx_buffer *);
812 extern void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
813 extern void ixgbe_write_eitr(struct ixgbe_q_vector *);
814 extern int ixgbe_poll(struct napi_struct *napi, int budget);
815 extern int ethtool_ioctl(struct ifreq *ifr);
816 extern s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
817 extern s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
818 extern s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
819 extern s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
820 union ixgbe_atr_hash_dword input,
821 union ixgbe_atr_hash_dword common,
823 extern s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
824 union ixgbe_atr_input *input_mask);
825 extern s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
826 union ixgbe_atr_input *input,
827 u16 soft_id, u8 queue);
828 extern s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
829 union ixgbe_atr_input *input,
831 extern void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
832 union ixgbe_atr_input *mask);
833 extern bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);
834 extern void ixgbe_set_rx_mode(struct net_device *netdev);
835 #ifdef CONFIG_IXGBE_DCB
836 extern void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter);
838 extern int ixgbe_setup_tc(struct net_device *dev, u8 tc);
839 extern void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
840 extern void ixgbe_do_reset(struct net_device *netdev);
841 #ifdef CONFIG_IXGBE_HWMON
842 extern void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
843 extern int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
844 #endif /* CONFIG_IXGBE_HWMON */
846 extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
847 extern int ixgbe_fso(struct ixgbe_ring *tx_ring,
848 struct ixgbe_tx_buffer *first,
850 extern int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
851 union ixgbe_adv_rx_desc *rx_desc,
852 struct sk_buff *skb);
853 extern int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
854 struct scatterlist *sgl, unsigned int sgc);
855 extern int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
856 struct scatterlist *sgl, unsigned int sgc);
857 extern int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
858 extern int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
859 extern void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
860 extern int ixgbe_fcoe_enable(struct net_device *netdev);
861 extern int ixgbe_fcoe_disable(struct net_device *netdev);
862 #ifdef CONFIG_IXGBE_DCB
863 extern u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
864 extern u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
865 #endif /* CONFIG_IXGBE_DCB */
866 extern int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
867 extern int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
868 struct netdev_fcoe_hbainfo *info);
869 extern u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
870 #endif /* IXGBE_FCOE */
871 #ifdef CONFIG_DEBUG_FS
872 extern void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
873 extern void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
874 extern void ixgbe_dbg_init(void);
875 extern void ixgbe_dbg_exit(void);
877 static inline void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter) {}
878 static inline void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter) {}
879 static inline void ixgbe_dbg_init(void) {}
880 static inline void ixgbe_dbg_exit(void) {}
881 #endif /* CONFIG_DEBUG_FS */
882 static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
884 return netdev_get_tx_queue(ring->netdev, ring->queue_index);
887 extern void ixgbe_ptp_init(struct ixgbe_adapter *adapter);
888 extern void ixgbe_ptp_stop(struct ixgbe_adapter *adapter);
889 extern void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter);
890 extern void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter);
891 extern void __ixgbe_ptp_rx_hwtstamp(struct ixgbe_q_vector *q_vector,
892 struct sk_buff *skb);
893 static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring,
894 union ixgbe_adv_rx_desc *rx_desc,
897 if (unlikely(!ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS)))
900 __ixgbe_ptp_rx_hwtstamp(rx_ring->q_vector, skb);
903 * Update the last_rx_timestamp timer in order to enable watchdog check
904 * for error case of latched timestamp on a dropped packet.
906 rx_ring->last_rx_timestamp = jiffies;
909 extern int ixgbe_ptp_hwtstamp_ioctl(struct ixgbe_adapter *adapter,
910 struct ifreq *ifr, int cmd);
911 extern void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
912 extern void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
913 extern void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter, u32 eicr);
914 #ifdef CONFIG_PCI_IOV
915 void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter);
918 #endif /* _IXGBE_H_ */