Home | History | Annotate | Line # | Download | only in ixgbe
ixgbe.h revision 1.66
      1 /* $NetBSD: ixgbe.h,v 1.66 2020/06/23 05:50:01 msaitoh Exp $ */
      2 
      3 /******************************************************************************
      4   SPDX-License-Identifier: BSD-3-Clause
      5 
      6   Copyright (c) 2001-2017, Intel Corporation
      7   All rights reserved.
      8 
      9   Redistribution and use in source and binary forms, with or without
     10   modification, are permitted provided that the following conditions are met:
     11 
     12    1. Redistributions of source code must retain the above copyright notice,
     13       this list of conditions and the following disclaimer.
     14 
     15    2. Redistributions in binary form must reproduce the above copyright
     16       notice, this list of conditions and the following disclaimer in the
     17       documentation and/or other materials provided with the distribution.
     18 
     19    3. Neither the name of the Intel Corporation nor the names of its
     20       contributors may be used to endorse or promote products derived from
     21       this software without specific prior written permission.
     22 
     23   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     24   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     27   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     30   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     31   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     32   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33   POSSIBILITY OF SUCH DAMAGE.
     34 
     35 ******************************************************************************/
     36 /*$FreeBSD: head/sys/dev/ixgbe/ixgbe.h 327031 2017-12-20 18:15:06Z erj $*/
     37 
     38 /*
     39  * Copyright (c) 2011 The NetBSD Foundation, Inc.
     40  * All rights reserved.
     41  *
     42  * This code is derived from software contributed to The NetBSD Foundation
     43  * by Coyote Point Systems, Inc.
     44  *
     45  * Redistribution and use in source and binary forms, with or without
     46  * modification, are permitted provided that the following conditions
     47  * are met:
     48  * 1. Redistributions of source code must retain the above copyright
     49  *    notice, this list of conditions and the following disclaimer.
     50  * 2. Redistributions in binary form must reproduce the above copyright
     51  *    notice, this list of conditions and the following disclaimer in the
     52  *    documentation and/or other materials provided with the distribution.
     53  *
     54  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     55  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     56  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     57  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     58  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     59  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     60  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     61  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     62  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     63  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     64  * POSSIBILITY OF SUCH DAMAGE.
     65  */
     66 
     67 
     68 #ifndef _IXGBE_H_
     69 #define _IXGBE_H_
     70 
     71 
     72 #include <sys/param.h>
     73 #include <sys/reboot.h>
     74 #include <sys/systm.h>
     75 #include <sys/pcq.h>
     76 #include <sys/mbuf.h>
     77 #include <sys/protosw.h>
     78 #include <sys/socket.h>
     79 #include <sys/malloc.h>
     80 #include <sys/kernel.h>
     81 #include <sys/module.h>
     82 #include <sys/sockio.h>
     83 #include <sys/percpu.h>
     84 
     85 #include <net/if.h>
     86 #include <net/if_arp.h>
     87 #include <net/bpf.h>
     88 #include <net/if_ether.h>
     89 #include <net/if_dl.h>
     90 #include <net/if_media.h>
     91 
     92 #include <net/if_types.h>
     93 #include <net/if_vlanvar.h>
     94 
     95 #include <netinet/in_systm.h>
     96 #include <netinet/in.h>
     97 #include <netinet/ip.h>
     98 #include <netinet/ip6.h>
     99 #include <netinet/tcp.h>
    100 #include <netinet/udp.h>
    101 
    102 #include <sys/bus.h>
    103 #include <dev/pci/pcivar.h>
    104 #include <dev/pci/pcireg.h>
    105 #include <sys/proc.h>
    106 #include <sys/sysctl.h>
    107 #include <sys/endian.h>
    108 #include <sys/workqueue.h>
    109 #include <sys/cpu.h>
    110 #include <sys/interrupt.h>
    111 #include <sys/bitops.h>
    112 
    113 #include "ixgbe_netbsd.h"
    114 #include "ixgbe_api.h"
    115 #include "ixgbe_common.h"
    116 #include "ixgbe_vf.h"
    117 #include "ixgbe_features.h"
    118 
    119 /* Tunables */
    120 
    121 /*
    122  * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
    123  * number of transmit descriptors allocated by the driver. Increasing this
    124  * value allows the driver to queue more transmits. Each descriptor is 16
    125  * bytes. Performance tests have show the 2K value to be optimal for top
    126  * performance.
    127  */
    128 #define DEFAULT_TXD	1024
    129 #define PERFORM_TXD	2048
    130 #define MAX_TXD		4096
    131 #define MIN_TXD		64
    132 
    133 /*
    134  * RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
    135  * number of receive descriptors allocated for each RX queue. Increasing this
    136  * value allows the driver to buffer more incoming packets. Each descriptor
    137  * is 16 bytes.  A receive buffer is also allocated for each descriptor.
    138  *
    139  * Note: with 8 rings and a dual port card, it is possible to bump up
    140  *	against the system mbuf pool limit, you can tune nmbclusters
    141  *	to adjust for this.
    142  */
    143 #define DEFAULT_RXD	1024
    144 #define PERFORM_RXD	2048
    145 #define MAX_RXD		4096
    146 #define MIN_RXD		64
    147 
    148 /* Alignment for rings */
    149 #define DBA_ALIGN	128
    150 
    151 /*
    152  * This is the max watchdog interval, ie. the time that can
    153  * pass between any two TX clean operations, such only happening
    154  * when the TX hardware is functioning.
    155  */
    156 #define IXGBE_WATCHDOG  (10 * hz)
    157 
    158 /*
    159  * This parameters control when the driver calls the routine to reclaim
    160  * transmit descriptors.
    161  */
    162 #define IXGBE_TX_CLEANUP_THRESHOLD(_a)  ((_a)->num_tx_desc / 8)
    163 #define IXGBE_TX_OP_THRESHOLD(_a)       ((_a)->num_tx_desc / 32)
    164 
    165 /* These defines are used in MTU calculations */
    166 #define IXGBE_MAX_FRAME_SIZE  9728
    167 #define IXGBE_MTU_HDR         (ETHER_HDR_LEN + ETHER_CRC_LEN)
    168 #define IXGBE_MTU_HDR_VLAN    (ETHER_HDR_LEN + ETHER_CRC_LEN + \
    169                                ETHER_VLAN_ENCAP_LEN)
    170 #define IXGBE_MAX_MTU         (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR)
    171 #define IXGBE_MAX_MTU_VLAN    (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR_VLAN)
    172 
    173 /* Flow control constants */
    174 #define IXGBE_FC_PAUSE        0xFFFF
    175 
    176 /*
    177  * Used for optimizing small rx mbufs.  Effort is made to keep the copy
    178  * small and aligned for the CPU L1 cache.
    179  *
    180  * MHLEN is typically 168 bytes, giving us 8-byte alignment.  Getting
    181  * 32 byte alignment needed for the fast bcopy results in 8 bytes being
    182  * wasted.  Getting 64 byte alignment, which _should_ be ideal for
    183  * modern Intel CPUs, results in 40 bytes wasted and a significant drop
    184  * in observed efficiency of the optimization, 97.9% -> 81.8%.
    185  */
    186 #define	MPKTHSIZE		(offsetof(struct _mbuf_dummy, m_pktdat))
    187 #define IXGBE_RX_COPY_HDR_PADDED  ((((MPKTHSIZE - 1) / 32) + 1) * 32)
    188 #define IXGBE_RX_COPY_LEN         (MSIZE - IXGBE_RX_COPY_HDR_PADDED)
    189 #define IXGBE_RX_COPY_ALIGN       (IXGBE_RX_COPY_HDR_PADDED - MPKTHSIZE)
    190 
    191 /* Keep older OS drivers building... */
    192 #if !defined(SYSCTL_ADD_UQUAD)
    193 #define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
    194 #endif
    195 
    196 /* Defines for printing debug information */
    197 #define DEBUG_INIT  0
    198 #define DEBUG_IOCTL 0
    199 #define DEBUG_HW    0
    200 
    201 #define INIT_DEBUGOUT(S)            if (DEBUG_INIT)  printf(S "\n")
    202 #define INIT_DEBUGOUT1(S, A)        if (DEBUG_INIT)  printf(S "\n", A)
    203 #define INIT_DEBUGOUT2(S, A, B)     if (DEBUG_INIT)  printf(S "\n", A, B)
    204 #define IOCTL_DEBUGOUT(S)           if (DEBUG_IOCTL) printf(S "\n")
    205 #define IOCTL_DEBUGOUT1(S, A)       if (DEBUG_IOCTL) printf(S "\n", A)
    206 #define IOCTL_DEBUGOUT2(S, A, B)    if (DEBUG_IOCTL) printf(S "\n", A, B)
    207 #define HW_DEBUGOUT(S)              if (DEBUG_HW) printf(S "\n")
    208 #define HW_DEBUGOUT1(S, A)          if (DEBUG_HW) printf(S "\n", A)
    209 #define HW_DEBUGOUT2(S, A, B)       if (DEBUG_HW) printf(S "\n", A, B)
    210 
    211 #define MAX_NUM_MULTICAST_ADDRESSES     128
    212 #define IXGBE_82598_SCATTER             100
    213 #define IXGBE_82599_SCATTER             32
    214 #define MSIX_82598_BAR                  3
    215 #define MSIX_82599_BAR                  4
    216 #define IXGBE_TSO_SIZE                  262140
    217 #define IXGBE_RX_HDR                    128
    218 #define IXGBE_VFTA_SIZE                 128
    219 #define IXGBE_BR_SIZE                   4096
    220 #define IXGBE_QUEUE_MIN_FREE            32
    221 #define IXGBE_MAX_TX_BUSY               10
    222 #define IXGBE_QUEUE_HUNG                0x80000000
    223 
    224 #define IXGBE_EITR_DEFAULT		128
    225 
    226 /* IOCTL define to gather SFP+ Diagnostic data */
    227 #define SIOCGI2C	SIOCGIFGENERIC
    228 
    229 /* Offload bits in mbuf flag */
    230 #define	M_CSUM_OFFLOAD	\
    231     (M_CSUM_IPv4|M_CSUM_UDPv4|M_CSUM_TCPv4|M_CSUM_UDPv6|M_CSUM_TCPv6)
    232 
    233 /* Backward compatibility items for very old versions */
    234 #ifndef pci_find_cap
    235 #define pci_find_cap pci_find_extcap
    236 #endif
    237 
    238 #ifndef DEVMETHOD_END
    239 #define DEVMETHOD_END { NULL, NULL }
    240 #endif
    241 
    242 /*
    243  * Interrupt Moderation parameters
    244  */
    245 #define IXGBE_LOW_LATENCY	128
    246 #define IXGBE_AVE_LATENCY	400
    247 #define IXGBE_BULK_LATENCY	1200
    248 
    249 /* Using 1FF (the max value), the interval is ~1.05ms */
    250 #define IXGBE_LINK_ITR_QUANTA  0x1FF
    251 #define IXGBE_LINK_ITR         ((IXGBE_LINK_ITR_QUANTA << 3) & \
    252                                 IXGBE_EITR_ITR_INT_MASK)
    253 
    254 
    255 /************************************************************************
    256  * vendor_info_array
    257  *
    258  *   Contains the list of Subvendor/Subdevice IDs on
    259  *   which the driver should load.
    260  ************************************************************************/
    261 typedef struct _ixgbe_vendor_info_t {
    262 	unsigned int vendor_id;
    263 	unsigned int device_id;
    264 	unsigned int subvendor_id;
    265 	unsigned int subdevice_id;
    266 	unsigned int index;
    267 } ixgbe_vendor_info_t;
    268 
    269 /* This is used to get SFP+ module data */
    270 struct ixgbe_i2c_req {
    271 	u8 dev_addr;
    272 	u8 offset;
    273 	u8 len;
    274 	u8 data[8];
    275 };
    276 
    277 struct ixgbe_bp_data {
    278 	u32 low;
    279 	u32 high;
    280 	u32 log;
    281 };
    282 
    283 struct ixgbe_tx_buf {
    284 	union ixgbe_adv_tx_desc	*eop;
    285 	struct mbuf             *m_head;
    286 	bus_dmamap_t            map;
    287 };
    288 
    289 struct ixgbe_rx_buf {
    290 	struct mbuf    *buf;
    291 	struct mbuf    *fmp;
    292 	bus_dmamap_t   pmap;
    293 	u_int          flags;
    294 #define IXGBE_RX_COPY  0x01
    295 	uint64_t       addr;
    296 };
    297 
    298 /*
    299  * Bus dma allocation structure used by ixgbe_dma_malloc and ixgbe_dma_free
    300  */
    301 struct ixgbe_dma_alloc {
    302 	bus_addr_t        dma_paddr;
    303 	void              *dma_vaddr;
    304 	ixgbe_dma_tag_t   *dma_tag;
    305 	bus_dmamap_t      dma_map;
    306 	bus_dma_segment_t dma_seg;
    307 	bus_size_t        dma_size;
    308 };
    309 
    310 struct ixgbe_mc_addr {
    311 	u8  addr[IXGBE_ETH_LENGTH_OF_ADDRESS];
    312 	u32 vmdq;
    313 };
    314 
    315 /*
    316  * Driver queue struct: this is the interrupt container
    317  *                      for the associated tx and rx ring.
    318  */
    319 struct ix_queue {
    320 	struct adapter   *adapter;
    321 	u32              msix;           /* This queue's MSI-X vector */
    322 	u32              eitr_setting;
    323 	u32              me;
    324 	struct resource  *res;
    325 	int              busy;
    326 	struct tx_ring   *txr;
    327 	struct rx_ring   *rxr;
    328 	struct work      wq_cookie;
    329 	void             *que_si;
    330 	/* Per queue event conters */
    331 	struct evcnt     irqs;		/* Hardware interrupt */
    332 	struct evcnt     handleq;	/* software_interrupt */
    333 	struct evcnt     req;		/* deferred */
    334 	char             namebuf[32];
    335 	char             evnamebuf[32];
    336 
    337 	/* Lock for disabled_count and this queue's EIMS/EIMC bit */
    338 	kmutex_t         dc_mtx;
    339 	/*
    340 	 * disabled_count means:
    341 	 *     0   : this queue is enabled
    342 	 *     > 0 : this queue is disabled
    343 	 *           the value is ixgbe_disable_queue() called count
    344 	 */
    345 	int              disabled_count;
    346 	bool             txrx_use_workqueue;
    347 };
    348 
    349 /*
    350  * The transmit ring, one per queue
    351  */
    352 struct tx_ring {
    353 	struct adapter		*adapter;
    354 	kmutex_t		tx_mtx;
    355 	u32			me;
    356 	u32			tail;
    357 	int			busy;
    358 	union ixgbe_adv_tx_desc	*tx_base;
    359 	struct ixgbe_tx_buf	*tx_buffers;
    360 	struct ixgbe_dma_alloc	txdma;
    361 	volatile u16		tx_avail;
    362 	u16			next_avail_desc;
    363 	u16			next_to_clean;
    364 	u16			num_desc;
    365 	ixgbe_dma_tag_t		*txtag;
    366 #if 0
    367 	char			mtx_name[16]; /* NetBSD has no mutex name */
    368 #endif
    369 	pcq_t			*txr_interq;
    370 	struct work		wq_cookie;
    371 	void			*txr_si;
    372 	bool			txr_no_space; /* Like IFF_OACTIVE */
    373 
    374 	/* Flow Director */
    375 	u16			atr_sample;
    376 	u16			atr_count;
    377 
    378 	u64			bytes;  /* Used for AIM */
    379 	u64			packets;
    380 	/* Soft Stats */
    381 	struct evcnt		tso_tx;
    382 	struct evcnt		no_desc_avail;
    383 	struct evcnt		total_packets;
    384 	struct evcnt		pcq_drops;
    385 	/* Per queue conters.  The adapter total is in struct adapter */
    386 	u64              q_efbig_tx_dma_setup;
    387 	u64              q_mbuf_defrag_failed;
    388 	u64              q_efbig2_tx_dma_setup;
    389 	u64              q_einval_tx_dma_setup;
    390 	u64              q_other_tx_dma_setup;
    391 	u64              q_eagain_tx_dma_setup;
    392 	u64              q_enomem_tx_dma_setup;
    393 	u64              q_tso_err;
    394 };
    395 
    396 
    397 /*
    398  * The Receive ring, one per rx queue
    399  */
    400 struct rx_ring {
    401 	struct adapter		*adapter;
    402 	kmutex_t		rx_mtx;
    403 	u32			me;
    404 	u32			tail;
    405 	union ixgbe_adv_rx_desc	*rx_base;
    406 	struct ixgbe_dma_alloc	rxdma;
    407 #ifdef LRO
    408 	struct lro_ctrl		lro;
    409 #endif /* LRO */
    410 	bool			lro_enabled;
    411 	bool			hw_rsc;
    412 	bool			vtag_strip;
    413 	u16			next_to_refresh;
    414 	u16			next_to_check;
    415 	u16			num_desc;
    416 	u16			mbuf_sz;
    417 #if 0
    418 	char			mtx_name[16]; /* NetBSD has no mutex name */
    419 #endif
    420 	struct ixgbe_rx_buf	*rx_buffers;
    421 	ixgbe_dma_tag_t		*ptag;
    422 	u16			last_rx_mbuf_sz;
    423 	u32			last_num_rx_desc;
    424 	ixgbe_extmem_head_t	jcl_head;
    425 
    426 	u64			bytes; /* Used for AIM calc */
    427 	u64			packets;
    428 
    429 	/* Soft stats */
    430 	struct evcnt		rx_copies;
    431 	struct evcnt		rx_packets;
    432 	struct evcnt		rx_bytes;
    433 	struct evcnt		rx_discarded;
    434 	struct evcnt		no_jmbuf;
    435 	u64			rsc_num;
    436 
    437 	/* Flow Director */
    438 	u64			flm;
    439 };
    440 
    441 struct ixgbe_vf {
    442 	u_int    pool;
    443 	u_int    rar_index;
    444 	u_int    max_frame_size;
    445 	uint32_t flags;
    446 	uint8_t  ether_addr[ETHER_ADDR_LEN];
    447 	uint16_t mc_hash[IXGBE_MAX_VF_MC];
    448 	uint16_t num_mc_hashes;
    449 	uint16_t default_vlan;
    450 	uint16_t vlan_tag;
    451 	uint16_t api_ver;
    452 };
    453 
    454 /*
    455  * NetBSD: For trafic class
    456  * Crrently, the following structure is only for statistics.
    457  */
    458 struct ixgbe_tc {
    459 	char             evnamebuf[32];
    460 };
    461 
    462 /* Our adapter structure */
    463 struct adapter {
    464 	struct ixgbe_hw		hw;
    465 	struct ixgbe_osdep	osdep;
    466 
    467 	device_t		dev;
    468 	struct ifnet		*ifp;
    469 	struct if_percpuq	*ipq;	/* softint-based input queues */
    470 
    471 	struct resource		*pci_mem;
    472 	struct resource		*msix_mem;
    473 
    474 	/* NetBSD: Interrupt resources are in osdep */
    475 
    476 	struct ifmedia		media;
    477 	callout_t		timer;
    478 	u_short			if_flags;	/* saved ifp->if_flags */
    479 	int			ec_capenable;	/* saved ec->ec_capenable */
    480 
    481 	kmutex_t		core_mtx;
    482 
    483 	unsigned int		num_queues;
    484 
    485 	/*
    486 	 * Shadow VFTA table, this is needed because
    487 	 * the real vlan filter table gets cleared during
    488 	 * a soft reset and the driver needs to be able
    489 	 * to repopulate it.
    490 	 */
    491 	u32			shadow_vfta[IXGBE_VFTA_SIZE];
    492 
    493 	/* Info about the interface */
    494 	int			advertise;  /* link speeds */
    495 	bool			enable_aim; /* adaptive interrupt moderation */
    496 	int			link_active; /* Use LINK_STATE_* value */
    497 	u16			max_frame_size;
    498 	u16			num_segs;
    499 	u32			link_speed;
    500 	bool			link_up;
    501 	u32			vector;
    502 	u16			dmac;
    503 	u32			phy_layer;
    504 
    505 	/* Power management-related */
    506 	bool			wol_support;
    507 	u32			wufc;
    508 
    509 	/* Mbuf cluster size */
    510 	u32			rx_mbuf_sz;
    511 
    512 	bool			schedule_wqs_ok;
    513 
    514 	/* Support for pluggable optics */
    515 	bool			sfp_probe;
    516 	void			*link_si;  /* Link tasklet */
    517 	void			*mod_si;   /* SFP tasklet */
    518 	struct workqueue	*msf_wq;   /* Multispeed Fiber */
    519 	struct work		 msf_wc;
    520 	bool			 msf_pending;
    521 	void			*mbx_si;   /* VF -> PF mailbox interrupt */
    522 
    523 	/* Flow Director */
    524 	int			fdir_reinit;
    525 	void			*fdir_si;
    526 
    527 	void			*phy_si;   /* PHY intr tasklet */
    528 
    529 	bool			txrx_use_workqueue;
    530 
    531 	/*
    532 	 * Workqueue for ixgbe_handle_que_work().
    533 	 *
    534 	 * que_wq's "enqueued flag" is not required, because twice
    535 	 * workqueue_enqueue() for ixgbe_handle_que_work() is avoided by
    536 	 * masking the queue's interrupt by EIMC. See also ixgbe_msix_que().
    537 	 */
    538 	struct workqueue	*que_wq;
    539 	/* Workqueue for ixgbe_deferred_mq_start_work() */
    540 	struct workqueue	*txr_wq;
    541 	percpu_t		*txr_wq_enqueued;
    542 
    543 	/*
    544 	 * Queues:
    545 	 *   This is the irq holder, it has
    546 	 *   and RX/TX pair or rings associated
    547 	 *   with it.
    548 	 */
    549 	struct ix_queue		*queues;
    550 
    551 	/*
    552 	 * Transmit rings
    553 	 *      Allocated at run time, an array of rings
    554 	 */
    555 	struct tx_ring		*tx_rings;
    556 	u32			num_tx_desc;
    557 	u32			tx_process_limit;
    558 
    559 	/*
    560 	 * Receive rings
    561 	 *      Allocated at run time, an array of rings
    562 	 */
    563 	struct rx_ring		*rx_rings;
    564 	u64			active_queues;
    565 	u32			num_rx_desc;
    566 	u32			rx_process_limit;
    567 
    568 	/* Multicast array memory */
    569 	struct ixgbe_mc_addr	*mta;
    570 
    571 	/* SR-IOV */
    572 	int                     iov_mode;
    573 	int			num_vfs;
    574 	int			pool;
    575 	struct ixgbe_vf		*vfs;
    576 
    577 	/* Bypass */
    578 	struct ixgbe_bp_data    bypass;
    579 
    580 	/* Netmap */
    581 	void			(*init_locked)(struct adapter *);
    582 	void			(*stop_locked)(void *);
    583 
    584 	/* Firmware error check */
    585 	u_int                   recovery_mode;
    586 	struct callout          recovery_mode_timer;
    587 
    588 	/* Misc stats maintained by the driver */
    589 	struct evcnt		efbig_tx_dma_setup;
    590 	struct evcnt		mbuf_defrag_failed;
    591 	struct evcnt		efbig2_tx_dma_setup;
    592 	struct evcnt		einval_tx_dma_setup;
    593 	struct evcnt		other_tx_dma_setup;
    594 	struct evcnt		eagain_tx_dma_setup;
    595 	struct evcnt		enomem_tx_dma_setup;
    596 	struct evcnt		tso_err;
    597 	struct evcnt		watchdog_events;
    598 	struct evcnt		link_irq;
    599 	struct evcnt		link_sicount;
    600 	struct evcnt		mod_sicount;
    601 	struct evcnt		msf_sicount;
    602 	struct evcnt		phy_sicount;
    603 
    604 	union {
    605 		struct ixgbe_hw_stats pf;
    606 		struct ixgbevf_hw_stats	vf;
    607 	} stats;
    608 #if __FreeBSD_version >= 1100036
    609 	/* counter(9) stats */
    610 	u64			ipackets;
    611 	u64			ierrors;
    612 	u64			opackets;
    613 	u64			oerrors;
    614 	u64			ibytes;
    615 	u64			obytes;
    616 	u64			imcasts;
    617 	u64			omcasts;
    618 	u64			iqdrops;
    619 	u64			noproto;
    620 #endif
    621 	/* Feature capable/enabled flags.  See ixgbe_features.h */
    622 	u32                     feat_cap;
    623 	u32                     feat_en;
    624 
    625 	/* Traffic classes */
    626 	struct ixgbe_tc tcs[IXGBE_DCB_MAX_TRAFFIC_CLASS];
    627 
    628 	struct sysctllog	*sysctllog;
    629 	const struct sysctlnode *sysctltop;
    630 };
    631 
    632 /* Precision Time Sync (IEEE 1588) defines */
    633 #define ETHERTYPE_IEEE1588      0x88F7
    634 #define PICOSECS_PER_TICK       20833
    635 #define TSYNC_UDP_PORT          319 /* UDP port for the protocol */
    636 #define IXGBE_ADVTXD_TSTAMP     0x00080000
    637 
    638 
    639 #define IXGBE_CORE_LOCK_INIT(_sc, _name) \
    640 	mutex_init(&(_sc)->core_mtx, MUTEX_DEFAULT, IPL_SOFTNET)
    641 #define IXGBE_CORE_LOCK_DESTROY(_sc)      mutex_destroy(&(_sc)->core_mtx)
    642 #define IXGBE_TX_LOCK_DESTROY(_sc)        mutex_destroy(&(_sc)->tx_mtx)
    643 #define IXGBE_RX_LOCK_DESTROY(_sc)        mutex_destroy(&(_sc)->rx_mtx)
    644 #define IXGBE_CORE_LOCK(_sc)              mutex_enter(&(_sc)->core_mtx)
    645 #define IXGBE_TX_LOCK(_sc)                mutex_enter(&(_sc)->tx_mtx)
    646 #define IXGBE_TX_TRYLOCK(_sc)             mutex_tryenter(&(_sc)->tx_mtx)
    647 #define IXGBE_RX_LOCK(_sc)                mutex_enter(&(_sc)->rx_mtx)
    648 #define IXGBE_CORE_UNLOCK(_sc)            mutex_exit(&(_sc)->core_mtx)
    649 #define IXGBE_TX_UNLOCK(_sc)              mutex_exit(&(_sc)->tx_mtx)
    650 #define IXGBE_RX_UNLOCK(_sc)              mutex_exit(&(_sc)->rx_mtx)
    651 #define IXGBE_CORE_LOCK_ASSERT(_sc)       KASSERT(mutex_owned(&(_sc)->core_mtx))
    652 #define IXGBE_TX_LOCK_ASSERT(_sc)         KASSERT(mutex_owned(&(_sc)->tx_mtx))
    653 
    654 /* External PHY register addresses */
    655 #define IXGBE_PHY_CURRENT_TEMP		0xC820
    656 #define IXGBE_PHY_OVERTEMP_STATUS	0xC830
    657 
    658 /* Sysctl help messages; displayed with sysctl -d */
    659 #define IXGBE_SYSCTL_DESC_ADV_SPEED \
    660 	"\nControl advertised link speed using these flags:\n" \
    661 	"\t0x01 - advertise 100M\n" \
    662 	"\t0x02 - advertise 1G\n" \
    663 	"\t0x04 - advertise 10G\n" \
    664 	"\t0x08 - advertise 10M\n" \
    665 	"\t0x10 - advertise 2.5G\n" \
    666 	"\t0x20 - advertise 5G\n\n" \
    667 	"\t5G, 2.5G, 100M and 10M are only supported on certain adapters."
    668 
    669 #define IXGBE_SYSCTL_DESC_SET_FC \
    670 	"\nSet flow control mode using these values:\n" \
    671 	"\t0 - off\n" \
    672 	"\t1 - rx pause\n" \
    673 	"\t2 - tx pause\n" \
    674 	"\t3 - tx and rx pause"
    675 
    676 /* Workaround to make 8.0 buildable */
    677 #if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504
    678 static __inline int
    679 drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br)
    680 {
    681 #ifdef ALTQ
    682 	if (ALTQ_IS_ENABLED(&ifp->if_snd))
    683 		return (1);
    684 #endif
    685 	return (!buf_ring_empty(br));
    686 }
    687 #endif
    688 
    689 /*
    690  * Find the number of unrefreshed RX descriptors
    691  */
    692 static __inline u16
    693 ixgbe_rx_unrefreshed(struct rx_ring *rxr)
    694 {
    695 	if (rxr->next_to_check > rxr->next_to_refresh)
    696 		return (rxr->next_to_check - rxr->next_to_refresh - 1);
    697 	else
    698 		return ((rxr->num_desc + rxr->next_to_check) -
    699 		    rxr->next_to_refresh - 1);
    700 }
    701 
    702 static __inline int
    703 ixgbe_legacy_ring_empty(struct ifnet *ifp, pcq_t *dummy)
    704 {
    705 	UNREFERENCED_1PARAMETER(dummy);
    706 
    707 	return IFQ_IS_EMPTY(&ifp->if_snd);
    708 }
    709 
    710 static __inline int
    711 ixgbe_mq_ring_empty(struct ifnet *dummy, pcq_t *interq)
    712 {
    713 	UNREFERENCED_1PARAMETER(dummy);
    714 
    715 	return (pcq_peek(interq) == NULL);
    716 }
    717 
    718 /*
    719  * This checks for a zero mac addr, something that will be likely
    720  * unless the Admin on the Host has created one.
    721  */
    722 static __inline bool
    723 ixv_check_ether_addr(u8 *addr)
    724 {
    725 	bool status = TRUE;
    726 
    727 	if ((addr[0] == 0 && addr[1]== 0 && addr[2] == 0 &&
    728 	    addr[3] == 0 && addr[4]== 0 && addr[5] == 0))
    729 		status = FALSE;
    730 
    731 	return (status);
    732 }
    733 
    734 /*
    735  * This checks the adapter->recovery_mode software flag which is
    736  * set by ixgbe_fw_recovery_mode().
    737  *
    738  */
    739 static inline bool
    740 ixgbe_fw_recovery_mode_swflag(struct adapter *adapter)
    741 {
    742 	return (adapter->feat_en & IXGBE_FEATURE_RECOVERY_MODE) &&
    743 	    atomic_load_acq_uint(&adapter->recovery_mode);
    744 }
    745 
    746 /* Shared Prototypes */
    747 void ixgbe_legacy_start(struct ifnet *);
    748 int  ixgbe_legacy_start_locked(struct ifnet *, struct tx_ring *);
    749 int  ixgbe_mq_start(struct ifnet *, struct mbuf *);
    750 int  ixgbe_mq_start_locked(struct ifnet *, struct tx_ring *);
    751 void ixgbe_deferred_mq_start(void *);
    752 void ixgbe_deferred_mq_start_work(struct work *, void *);
    753 void ixgbe_drain_all(struct adapter *);
    754 
    755 int  ixgbe_allocate_queues(struct adapter *);
    756 void ixgbe_free_queues(struct adapter *);
    757 int  ixgbe_setup_transmit_structures(struct adapter *);
    758 void ixgbe_free_transmit_structures(struct adapter *);
    759 int  ixgbe_setup_receive_structures(struct adapter *);
    760 void ixgbe_free_receive_structures(struct adapter *);
    761 bool ixgbe_txeof(struct tx_ring *);
    762 bool ixgbe_rxeof(struct ix_queue *);
    763 
    764 const struct sysctlnode *ixgbe_sysctl_instance(struct adapter *);
    765 
    766 /* For NetBSD */
    767 void ixgbe_jcl_reinit(struct adapter *, bus_dma_tag_t, struct rx_ring *,
    768     int, size_t);
    769 void ixgbe_jcl_destroy(struct adapter *,  struct rx_ring *);
    770 
    771 #include "ixgbe_bypass.h"
    772 #include "ixgbe_fdir.h"
    773 #include "ixgbe_rss.h"
    774 #include "ixgbe_netmap.h"
    775 
    776 #endif /* _IXGBE_H_ */
    777