1 /******************************************************************************
3 Copyright (c) 2013-2017, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ******************************************************************************/
40 #include "opt_inet6.h"
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/buf_ring.h>
48 #include <sys/protosw.h>
49 #include <sys/socket.h>
50 #include <sys/malloc.h>
51 #include <sys/kernel.h>
52 #include <sys/module.h>
53 #include <sys/sockio.h>
54 #include <sys/eventhandler.h>
55 #include <sys/syslog.h>
58 #include <net/if_var.h>
59 #include <net/if_arp.h>
61 #include <net/ethernet.h>
62 #include <net/if_dl.h>
63 #include <net/if_media.h>
66 #include <net/if_types.h>
67 #include <net/if_vlan_var.h>
69 #include <netinet/in_systm.h>
70 #include <netinet/in.h>
71 #include <netinet/if_ether.h>
72 #include <netinet/ip.h>
73 #include <netinet/ip6.h>
74 #include <netinet/tcp.h>
75 #include <netinet/tcp_lro.h>
76 #include <netinet/udp.h>
77 #include <netinet/sctp.h>
79 #include <machine/in_cksum.h>
82 #include <machine/bus.h>
84 #include <machine/resource.h>
87 #include <machine/clock.h>
88 #include <dev/pci/pcivar.h>
89 #include <dev/pci/pcireg.h>
91 #include <sys/sysctl.h>
92 #include <sys/endian.h>
93 #include <sys/taskqueue.h>
97 #include <machine/smp.h>
98 #include <machine/stdarg.h>
101 #include <net/rss_config.h>
102 #include <netinet/in_rss.h>
105 #include "i40e_type.h"
106 #include "i40e_prototype.h"
108 #define MAC_FORMAT "%02x:%02x:%02x:%02x:%02x:%02x"
109 #define MAC_FORMAT_ARGS(mac_addr) \
110 (mac_addr)[0], (mac_addr)[1], (mac_addr)[2], (mac_addr)[3], \
111 (mac_addr)[4], (mac_addr)[5]
112 #define ON_OFF_STR(is_set) ((is_set) ? "On" : "Off")
116 #define _DBG_PRINTF(S, ...) printf("%s: " S "\n", __func__, ##__VA_ARGS__)
117 #define _DEV_DBG_PRINTF(dev, S, ...) device_printf(dev, "%s: " S "\n", __func__, ##__VA_ARGS__)
118 #define _IF_DBG_PRINTF(ifp, S, ...) if_printf(ifp, "%s: " S "\n", __func__, ##__VA_ARGS__)
120 /* Defines for printing generic debug information */
121 #define DPRINTF(...) _DBG_PRINTF(__VA_ARGS__)
122 #define DDPRINTF(...) _DEV_DBG_PRINTF(__VA_ARGS__)
123 #define IDPRINTF(...) _IF_DBG_PRINTF(__VA_ARGS__)
125 /* Defines for printing specific debug information */
127 #define DEBUG_IOCTL 1
130 #define INIT_DEBUGOUT(...) if (DEBUG_INIT) _DBG_PRINTF(__VA_ARGS__)
131 #define INIT_DBG_DEV(...) if (DEBUG_INIT) _DEV_DBG_PRINTF(__VA_ARGS__)
132 #define INIT_DBG_IF(...) if (DEBUG_INIT) _IF_DBG_PRINTF(__VA_ARGS__)
134 #define IOCTL_DEBUGOUT(...) if (DEBUG_IOCTL) _DBG_PRINTF(__VA_ARGS__)
135 #define IOCTL_DBG_IF2(ifp, S, ...) if (DEBUG_IOCTL) \
136 if_printf(ifp, S "\n", ##__VA_ARGS__)
137 #define IOCTL_DBG_IF(...) if (DEBUG_IOCTL) _IF_DBG_PRINTF(__VA_ARGS__)
139 #define HW_DEBUGOUT(...) if (DEBUG_HW) _DBG_PRINTF(__VA_ARGS__)
141 #else /* no IXL_DEBUG */
143 #define DEBUG_IOCTL 0
147 #define DDPRINTF(...)
148 #define IDPRINTF(...)
150 #define INIT_DEBUGOUT(...)
151 #define INIT_DBG_DEV(...)
152 #define INIT_DBG_IF(...)
153 #define IOCTL_DEBUGOUT(...)
154 #define IOCTL_DBG_IF2(...)
155 #define IOCTL_DBG_IF(...)
156 #define HW_DEBUGOUT(...)
157 #endif /* IXL_DEBUG */
160 IXL_DBG_INFO = 0x00000001,
161 IXL_DBG_EN_DIS = 0x00000002,
162 IXL_DBG_AQ = 0x00000004,
163 IXL_DBG_NVMUPD = 0x00000008,
165 IXL_DBG_IOCTL_KNOWN = 0x00000010,
166 IXL_DBG_IOCTL_UNKNOWN = 0x00000020,
167 IXL_DBG_IOCTL_ALL = 0x00000030,
169 I40E_DEBUG_RSS = 0x00000100,
171 IXL_DBG_IOV = 0x00001000,
172 IXL_DBG_IOV_VC = 0x00002000,
174 IXL_DBG_SWITCH_INFO = 0x00010000,
175 IXL_DBG_I2C = 0x00020000,
177 IXL_DBG_ALL = 0xFFFFFFFF
183 * Ring Descriptors Valid Range: 32-4096 Default Value: 1024 This value is the
184 * number of tx/rx descriptors allocated by the driver. Increasing this
185 * value allows the driver to queue more operations.
187 * Tx descriptors are always 16 bytes, but Rx descriptors can be 32 bytes.
188 * The driver currently always uses 32 byte Rx descriptors.
190 #define IXL_DEFAULT_RING 1024
191 #define IXL_MAX_RING 4096
192 #define IXL_MIN_RING 64
193 #define IXL_RING_INCREMENT 32
195 #define IXL_AQ_LEN 256
196 #define IXL_AQ_LEN_MAX 1024
199 ** Default number of entries in Tx queue buf_ring.
201 #define DEFAULT_TXBRSZ 4096
203 /* Alignment for rings */
204 #define DBA_ALIGN 128
207 * This is the max watchdog interval, ie. the time that can
208 * pass between any two TX clean operations, such only happening
209 * when the TX hardware is functioning.
211 * XXX: Watchdog currently counts down in units of (hz)
212 * Set this to just (hz) if you want queues to hang under a little bit of stress
214 #define IXL_WATCHDOG (10 * hz)
217 * This parameters control when the driver calls the routine to reclaim
218 * transmit descriptors.
220 #define IXL_TX_CLEANUP_THRESHOLD (que->num_tx_desc / 8)
221 #define IXL_TX_OP_THRESHOLD (que->num_tx_desc / 32)
223 #define MAX_MULTICAST_ADDR 128
225 #define IXL_MSIX_BAR 3
226 #define IXL_ADM_LIMIT 2
227 #define IXL_TSO_SIZE 65535
228 #define IXL_AQ_BUF_SZ ((u32) 4096)
229 #define IXL_RX_HDR 128
230 #define IXL_RX_LIMIT 512
233 #define IXL_ITR_NONE 3
234 #define IXL_QUEUE_EOL 0x7FF
235 #define IXL_MAX_FRAME 9728
236 #define IXL_MAX_TX_SEGS 8
237 #define IXL_MAX_TSO_SEGS 128
238 #define IXL_SPARSE_CHAIN 7
239 #define IXL_QUEUE_HUNG 0x80000000
240 #define IXL_MIN_TSO_MSS 64
241 #define IXL_MAX_DMA_SEG_SIZE ((16 * 1024) - 1)
243 #define IXL_RSS_KEY_SIZE_REG 13
244 #define IXL_RSS_KEY_SIZE (IXL_RSS_KEY_SIZE_REG * 4)
245 #define IXL_RSS_VSI_LUT_SIZE 64 /* X722 -> VSI, X710 -> VF */
246 #define IXL_RSS_VSI_LUT_ENTRY_MASK 0x3F
247 #define IXL_RSS_VF_LUT_ENTRY_MASK 0xF
249 #define IXL_VF_MAX_BUFFER 0x3F80
250 #define IXL_VF_MAX_HDR_BUFFER 0x840
251 #define IXL_VF_MAX_FRAME 0x3FFF
253 /* ERJ: hardware can support ~2k (SW5+) filters between all functions */
254 #define IXL_MAX_FILTERS 256
255 #define IXL_MAX_TX_BUSY 10
257 #define IXL_NVM_VERSION_LO_SHIFT 0
258 #define IXL_NVM_VERSION_LO_MASK (0xff << IXL_NVM_VERSION_LO_SHIFT)
259 #define IXL_NVM_VERSION_HI_SHIFT 12
260 #define IXL_NVM_VERSION_HI_MASK (0xf << IXL_NVM_VERSION_HI_SHIFT)
263 * Interrupt Moderation parameters
264 * Multiply ITR values by 2 for real ITR value
266 #define IXL_MAX_ITR 0x0FF0
267 #define IXL_ITR_100K 0x0005
268 #define IXL_ITR_20K 0x0019
269 #define IXL_ITR_8K 0x003E
270 #define IXL_ITR_4K 0x007A
271 #define IXL_ITR_1K 0x01F4
272 #define IXL_ITR_DYNAMIC 0x8000
273 #define IXL_LOW_LATENCY 0
274 #define IXL_AVE_LATENCY 1
275 #define IXL_BULK_LATENCY 2
278 #define IXL_FILTER_USED (u16)(1 << 0)
279 #define IXL_FILTER_VLAN (u16)(1 << 1)
280 #define IXL_FILTER_ADD (u16)(1 << 2)
281 #define IXL_FILTER_DEL (u16)(1 << 3)
282 #define IXL_FILTER_MC (u16)(1 << 4)
284 /* used in the vlan field of the filter when not a vlan */
285 #define IXL_VLAN_ANY -1
287 #define CSUM_OFFLOAD_IPV4 (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
288 #define CSUM_OFFLOAD_IPV6 (CSUM_TCP_IPV6|CSUM_UDP_IPV6|CSUM_SCTP_IPV6)
289 #define CSUM_OFFLOAD (CSUM_OFFLOAD_IPV4|CSUM_OFFLOAD_IPV6|CSUM_TSO)
291 /* Misc flags for ixl_vsi.flags */
292 #define IXL_FLAGS_KEEP_TSO4 (1 << 0)
293 #define IXL_FLAGS_KEEP_TSO6 (1 << 1)
294 #define IXL_FLAGS_USES_MSIX (1 << 2)
295 #define IXL_FLAGS_IS_VF (1 << 3)
297 #define IXL_VF_RESET_TIMEOUT 100
299 #define IXL_VSI_DATA_PORT 0x01
301 #define IXLV_MAX_QUEUES 16
302 #define IXL_MAX_VSI_QUEUES (2 * (I40E_VSILAN_QTABLE_MAX_INDEX + 1))
304 #define IXL_RX_CTX_BASE_UNITS 128
305 #define IXL_TX_CTX_BASE_UNITS 128
307 #define IXL_VPINT_LNKLSTN_REG(hw, vector, vf_num) \
308 I40E_VPINT_LNKLSTN(((vector) - 1) + \
309 (((hw)->func_caps.num_msix_vectors_vf - 1) * (vf_num)))
311 #define IXL_VFINT_DYN_CTLN_REG(hw, vector, vf_num) \
312 I40E_VFINT_DYN_CTLN(((vector) - 1) + \
313 (((hw)->func_caps.num_msix_vectors_vf - 1) * (vf_num)))
315 #define IXL_PF_PCI_CIAA_VF_DEVICE_STATUS 0xAA
317 #define IXL_PF_PCI_CIAD_VF_TRANS_PENDING_MASK 0x20
319 #define IXL_GLGEN_VFLRSTAT_INDEX(glb_vf) ((glb_vf) / 32)
320 #define IXL_GLGEN_VFLRSTAT_MASK(glb_vf) (1 << ((glb_vf) % 32))
322 #define IXL_MAX_ITR_IDX 3
324 #define IXL_END_OF_INTR_LNKLST 0x7FF
326 #define IXL_DEFAULT_RSS_HENA_BASE (\
327 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | \
328 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP) | \
329 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_SCTP) | \
330 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | \
331 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4) | \
332 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | \
333 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP) | \
334 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_SCTP) | \
335 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | \
336 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6) | \
337 BIT_ULL(I40E_FILTER_PCTYPE_L2_PAYLOAD))
339 #define IXL_DEFAULT_RSS_HENA_XL710 IXL_DEFAULT_RSS_HENA_BASE
341 #define IXL_DEFAULT_RSS_HENA_X722 (\
342 IXL_DEFAULT_RSS_HENA_BASE | \
343 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | \
344 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) | \
345 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | \
346 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) | \
347 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK) | \
348 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK))
350 #define IXL_TX_LOCK(_sc) mtx_lock(&(_sc)->mtx)
351 #define IXL_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
352 #define IXL_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx)
353 #define IXL_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->mtx)
354 #define IXL_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->mtx, MA_OWNED)
356 #define IXL_RX_LOCK(_sc) mtx_lock(&(_sc)->mtx)
357 #define IXL_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
358 #define IXL_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx)
360 /* Pre-11 counter(9) compatibility */
361 #if __FreeBSD_version >= 1100036
362 #define IXL_SET_IPACKETS(vsi, count) (vsi)->ipackets = (count)
363 #define IXL_SET_IERRORS(vsi, count) (vsi)->ierrors = (count)
364 #define IXL_SET_OPACKETS(vsi, count) (vsi)->opackets = (count)
365 #define IXL_SET_OERRORS(vsi, count) (vsi)->oerrors = (count)
366 #define IXL_SET_COLLISIONS(vsi, count) /* Do nothing; collisions is always 0. */
367 #define IXL_SET_IBYTES(vsi, count) (vsi)->ibytes = (count)
368 #define IXL_SET_OBYTES(vsi, count) (vsi)->obytes = (count)
369 #define IXL_SET_IMCASTS(vsi, count) (vsi)->imcasts = (count)
370 #define IXL_SET_OMCASTS(vsi, count) (vsi)->omcasts = (count)
371 #define IXL_SET_IQDROPS(vsi, count) (vsi)->iqdrops = (count)
372 #define IXL_SET_OQDROPS(vsi, count) (vsi)->oqdrops = (count)
373 #define IXL_SET_NOPROTO(vsi, count) (vsi)->noproto = (count)
375 #define IXL_SET_IPACKETS(vsi, count) (vsi)->ifp->if_ipackets = (count)
376 #define IXL_SET_IERRORS(vsi, count) (vsi)->ifp->if_ierrors = (count)
377 #define IXL_SET_OPACKETS(vsi, count) (vsi)->ifp->if_opackets = (count)
378 #define IXL_SET_OERRORS(vsi, count) (vsi)->ifp->if_oerrors = (count)
379 #define IXL_SET_COLLISIONS(vsi, count) (vsi)->ifp->if_collisions = (count)
380 #define IXL_SET_IBYTES(vsi, count) (vsi)->ifp->if_ibytes = (count)
381 #define IXL_SET_OBYTES(vsi, count) (vsi)->ifp->if_obytes = (count)
382 #define IXL_SET_IMCASTS(vsi, count) (vsi)->ifp->if_imcasts = (count)
383 #define IXL_SET_OMCASTS(vsi, count) (vsi)->ifp->if_omcasts = (count)
384 #define IXL_SET_IQDROPS(vsi, count) (vsi)->ifp->if_iqdrops = (count)
385 #define IXL_SET_OQDROPS(vsi, odrops) (vsi)->ifp->if_snd.ifq_drops = (odrops)
386 #define IXL_SET_NOPROTO(vsi, count) (vsi)->noproto = (count)
390 *****************************************************************************
393 * This array contains the list of Subvendor/Subdevice IDs on which the driver
396 *****************************************************************************
398 typedef struct _ixl_vendor_info_t {
399 unsigned int vendor_id;
400 unsigned int device_id;
401 unsigned int subvendor_id;
402 unsigned int subdevice_id;
423 ** This struct has multiple uses, multicast
424 ** addresses, vlans, and mac filters all use it.
426 struct ixl_mac_filter {
427 SLIST_ENTRY(ixl_mac_filter) next;
428 u8 macaddr[ETHER_ADDR_LEN];
434 * The Transmit ring control struct
437 struct ixl_queue *que;
440 struct i40e_tx_desc *base;
441 struct i40e_dma_mem dma;
448 struct ixl_tx_buf *buffers;
451 bus_dma_tag_t tx_tag;
452 bus_dma_tag_t tso_tag;
457 /* Used for Dynamic ITR calculation */
469 * The Receive ring control struct
472 struct ixl_queue *que;
474 union i40e_rx_desc *base;
475 struct i40e_dma_mem dma;
485 struct ixl_rx_buf *buffers;
491 /* Used for Dynamic ITR calculation */
504 ** Driver queue struct: this is the interrupt container
505 ** for the associated tx and rx ring pair.
510 u32 msix; /* This queue's MSIX vector */
511 u32 eims; /* This queue's EIMS bit */
512 struct resource *res;
514 int num_tx_desc; /* both tx and rx */
515 int num_rx_desc; /* both tx and rx */
517 int num_desc; /* for compatibility with current netmap code in kernel */
523 struct taskqueue *tq;
528 u64 mbuf_defrag_failed;
531 u64 tx_dmamap_failed;
537 ** Virtual Station Interface
539 SLIST_HEAD(ixl_ftl_head, ixl_mac_filter);
545 struct ifmedia media;
546 enum i40e_vsi_type type;
554 bool enable_head_writeback;
556 struct ixl_queue *queues; /* head of queues */
564 /* MAC/VLAN Filter list */
565 struct ixl_ftl_head ftl;
568 /* Contains readylist & stat counter id */
569 struct i40e_aqc_vsi_properties_data info;
571 eventhandler_tag vlan_attach;
572 eventhandler_tag vlan_detach;
575 /* Per-VSI stats from hardware */
576 struct i40e_eth_stats eth_stats;
577 struct i40e_eth_stats eth_stats_offsets;
578 bool stat_offsets_loaded;
579 /* VSI stat counters */
592 /* Driver statistics */
598 struct sysctl_oid *vsi_node;
602 ** Find the number of unrefreshed RX descriptors
605 ixl_rx_unrefreshed(struct ixl_queue *que)
607 struct rx_ring *rxr = &que->rxr;
609 if (rxr->next_check > rxr->next_refresh)
610 return (rxr->next_check - rxr->next_refresh - 1);
612 return ((que->num_rx_desc + rxr->next_check) -
613 rxr->next_refresh - 1);
617 ** Find the next available unused filter
619 static inline struct ixl_mac_filter *
620 ixl_get_filter(struct ixl_vsi *vsi)
622 struct ixl_mac_filter *f;
624 /* create a new empty filter */
625 f = malloc(sizeof(struct ixl_mac_filter),
626 M_DEVBUF, M_NOWAIT | M_ZERO);
628 SLIST_INSERT_HEAD(&vsi->ftl, f, next);
634 ** Compare two ethernet addresses
637 cmp_etheraddr(const u8 *ea1, const u8 *ea2)
641 if ((ea1[0] == ea2[0]) && (ea1[1] == ea2[1]) &&
642 (ea1[2] == ea2[2]) && (ea1[3] == ea2[3]) &&
643 (ea1[4] == ea2[4]) && (ea1[5] == ea2[5]))
650 * Return next largest power of 2, unsigned
652 * Public domain, from Bit Twiddling Hacks
655 next_power_of_two(u32 n)
665 /* Next power of two > 0 is 1 */
672 * Info for stats sysctls
674 struct ixl_sysctl_info {
680 extern const uint8_t ixl_bcast_addr[ETHER_ADDR_LEN];
682 /*********************************************************************
683 * TXRX Function prototypes
684 *********************************************************************/
685 int ixl_allocate_tx_data(struct ixl_queue *);
686 int ixl_allocate_rx_data(struct ixl_queue *);
687 void ixl_init_tx_ring(struct ixl_queue *);
688 int ixl_init_rx_ring(struct ixl_queue *);
689 bool ixl_rxeof(struct ixl_queue *, int);
690 bool ixl_txeof(struct ixl_queue *);
691 void ixl_free_que_tx(struct ixl_queue *);
692 void ixl_free_que_rx(struct ixl_queue *);
694 int ixl_mq_start(struct ifnet *, struct mbuf *);
695 int ixl_mq_start_locked(struct ifnet *, struct tx_ring *);
696 void ixl_deferred_mq_start(void *, int);
698 void ixl_vsi_setup_rings_size(struct ixl_vsi *, int, int);
699 int ixl_queue_hang_check(struct ixl_vsi *);
700 void ixl_free_vsi(struct ixl_vsi *);
701 void ixl_qflush(struct ifnet *);
703 /* Common function prototypes between PF/VF driver */
704 #if __FreeBSD_version >= 1100000
705 uint64_t ixl_get_counter(if_t ifp, ift_counter cnt);
707 void ixl_get_default_rss_key(u32 *);
708 const char * i40e_vc_stat_str(struct i40e_hw *hw,
709 enum virtchnl_status_code stat_err);
710 void ixl_set_busmaster(device_t);
711 void ixl_set_msix_enable(device_t);