xref: /freebsd-10-stable/sys/dev/ixgbe/ixv.h

/******************************************************************************

  Copyright (c) 2001-2017, Intel Corporation
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  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:

   1. Redistributions of source code must retain the above copyright notice,
      this list of conditions and the following disclaimer.

   2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.

   3. Neither the name of the Intel Corporation nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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******************************************************************************/
/*$FreeBSD: stable/10/sys/dev/ixgbe/ixv.h 315434 2017-03-16 23:18:57Z erj $*/


#ifndef _IXGBE_H_
#define _IXGBE_H_


#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf_ring.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sockio.h>
#include <sys/eventhandler.h>

#include <net/if.h>
#include <net/if_var.h>
#include <net/if_arp.h>
#include <net/bpf.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>

#include <net/bpf.h>
#include <net/if_types.h>
#include <net/if_vlan_var.h>

#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <netinet/tcp_lro.h>
#include <netinet/udp.h>

#include <machine/in_cksum.h>

#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/clock.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <sys/proc.h>
#include <sys/sysctl.h>
#include <sys/endian.h>
#include <sys/taskqueue.h>
#include <sys/pcpu.h>
#include <sys/smp.h>
#include <machine/smp.h>
#include <sys/sbuf.h>

#include "ixv_features.h"
#include "ixv_vf.h"

/* Tunables */

/*
 * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
 * number of transmit descriptors allocated by the driver. Increasing this
 * value allows the driver to queue more transmits. Each descriptor is 16
 * bytes. Performance tests have show the 2K value to be optimal for top
 * performance.
 */
#define DEFAULT_TXD     1024
#define PERFORM_TXD     2048
#define MAX_TXD         4096
#define MIN_TXD         64

/*
 * RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
 * number of receive descriptors allocated for each RX queue. Increasing this
 * value allows the driver to buffer more incoming packets. Each descriptor
 * is 16 bytes.  A receive buffer is also allocated for each descriptor.
 *
 * Note: with 8 rings and a dual port card, it is possible to bump up
 *       against the system mbuf pool limit, you can tune nmbclusters
 *       to adjust for this.
 */
#define DEFAULT_RXD     1024
#define PERFORM_RXD     2048
#define MAX_RXD         4096
#define MIN_RXD         64

/* Alignment for rings */
#define DBA_ALIGN       128

/*
 * This is the max watchdog interval, ie. the time that can
 * pass between any two TX clean operations, such only happening
 * when the TX hardware is functioning.
 */
#define IXGBE_WATCHDOG  (10 * hz)

/*
 * This parameters control when the driver calls the routine to reclaim
 * transmit descriptors.
 */
#define IXGBE_TX_CLEANUP_THRESHOLD(_a)  ((_a)->num_tx_desc / 8)
#define IXGBE_TX_OP_THRESHOLD(_a)       ((_a)->num_tx_desc / 32)

/* These defines are used in MTU calculations */
#define IXGBE_MAX_FRAME_SIZE  9728
#define IXGBE_MTU_HDR         (ETHER_HDR_LEN + ETHER_CRC_LEN)
#define IXGBE_MTU_HDR_VLAN    (ETHER_HDR_LEN + ETHER_CRC_LEN + \
                               ETHER_VLAN_ENCAP_LEN)
#define IXGBE_MAX_MTU         (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR)
#define IXGBE_MAX_MTU_VLAN    (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR_VLAN)

/* Flow control constants */
#define IXGBE_FC_PAUSE        0xFFFF
#define IXGBE_FC_HI           0x20000
#define IXGBE_FC_LO           0x10000

/*
 * Used for optimizing small rx mbufs.  Effort is made to keep the copy
 * small and aligned for the CPU L1 cache.
 *
 * MHLEN is typically 168 bytes, giving us 8-byte alignment.  Getting
 * 32 byte alignment needed for the fast bcopy results in 8 bytes being
 * wasted.  Getting 64 byte alignment, which _should_ be ideal for
 * modern Intel CPUs, results in 40 bytes wasted and a significant drop
 * in observed efficiency of the optimization, 97.9% -> 81.8%.
 */
#if __FreeBSD_version < 1002000
#define MPKTHSIZE                 (sizeof(struct m_hdr) + sizeof(struct pkthdr))
#endif
#define IXGBE_RX_COPY_HDR_PADDED  ((((MPKTHSIZE - 1) / 32) + 1) * 32)
#define IXGBE_RX_COPY_LEN         (MSIZE - IXGBE_RX_COPY_HDR_PADDED)
#define IXGBE_RX_COPY_ALIGN       (IXGBE_RX_COPY_HDR_PADDED - MPKTHSIZE)

/* Keep older OS drivers building... */
#if !defined(SYSCTL_ADD_UQUAD)
#define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
#endif

/* Defines for printing debug information */
#define DEBUG_INIT  0
#define DEBUG_IOCTL 0
#define DEBUG_HW    0

#define INIT_DEBUGOUT(S)            if (DEBUG_INIT)  printf(S "\n")
#define INIT_DEBUGOUT1(S, A)        if (DEBUG_INIT)  printf(S "\n", A)
#define INIT_DEBUGOUT2(S, A, B)     if (DEBUG_INIT)  printf(S "\n", A, B)
#define IOCTL_DEBUGOUT(S)           if (DEBUG_IOCTL) printf(S "\n")
#define IOCTL_DEBUGOUT1(S, A)       if (DEBUG_IOCTL) printf(S "\n", A)
#define IOCTL_DEBUGOUT2(S, A, B)    if (DEBUG_IOCTL) printf(S "\n", A, B)
#define HW_DEBUGOUT(S)              if (DEBUG_HW) printf(S "\n")
#define HW_DEBUGOUT1(S, A)          if (DEBUG_HW) printf(S "\n", A)
#define HW_DEBUGOUT2(S, A, B)       if (DEBUG_HW) printf(S "\n", A, B)

#define MAX_NUM_MULTICAST_ADDRESSES     128
#define IXGBE_82598_SCATTER             100
#define IXGBE_82599_SCATTER             32
#define MSIX_82598_BAR                  3
#define MSIX_82599_BAR                  4
#define IXGBE_TSO_SIZE                  262140
#define IXGBE_RX_HDR                    128
#define IXGBE_VFTA_SIZE                 128
#define IXGBE_BR_SIZE                   4096
#define IXGBE_QUEUE_MIN_FREE            32
#define IXGBE_MAX_TX_BUSY               10
#define IXGBE_QUEUE_HUNG                0x80000000

#define IXGBE_EITR_DEFAULT              128

/* Supported offload bits in mbuf flag */
#if __FreeBSD_version >= 1000000
#define CSUM_OFFLOAD  (CSUM_IP_TSO|CSUM_IP6_TSO|CSUM_IP| \
                       CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP| \
                       CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP)
#elif __FreeBSD_version >= 800000
#define CSUM_OFFLOAD  (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
#else
#define CSUM_OFFLOAD  (CSUM_IP|CSUM_TCP|CSUM_UDP)
#endif

/* Backward compatibility items for very old versions */
#ifndef pci_find_cap
#define pci_find_cap pci_find_extcap
#endif

#ifndef DEVMETHOD_END
#define DEVMETHOD_END { NULL, NULL }
#endif

/*
 * Interrupt Moderation parameters
 */
#define IXGBE_LOW_LATENCY   128
#define IXGBE_AVE_LATENCY   400
#define IXGBE_BULK_LATENCY  1200

/* Using 1FF (the max value), the interval is ~1.05ms */
#define IXGBE_LINK_ITR_QUANTA  0x1FF
#define IXGBE_LINK_ITR         ((IXGBE_LINK_ITR_QUANTA << 3) & \
                                IXGBE_EITR_ITR_INT_MASK)

/* MAC type macros */
#define IXGBE_IS_X550VF(_adapter) \
	((_adapter->hw.mac.type == ixgbe_mac_X550_vf) || \
	 (_adapter->hw.mac.type == ixgbe_mac_X550EM_x_vf) || \
	 (_adapter->hw.mac.type == ixgbe_mac_X550EM_a_vf))

#define IXGBE_IS_VF(_x) 1


/************************************************************************
 * vendor_info_array
 *
 *   This array contains the list of Subvendor/Subdevice IDs on
 *   which the driver should load.
 ************************************************************************/
typedef struct _ixgbe_vendor_info_t {
	unsigned int vendor_id;
	unsigned int device_id;
	unsigned int subvendor_id;
	unsigned int subdevice_id;
	unsigned int index;
} ixgbe_vendor_info_t;

struct ixgbe_bp_data {
	u32 low;
	u32 high;
	u32 log;
};

struct ixgbe_tx_buf {
	union ixgbe_adv_tx_desc *eop;
	struct mbuf             *m_head;
	bus_dmamap_t            map;
};

struct ixgbe_rx_buf {
	struct mbuf    *buf;
	struct mbuf    *fmp;
	bus_dmamap_t   pmap;
	u_int          flags;
#define IXGBE_RX_COPY  0x01
	uint64_t       addr;
};

/*
 * Bus dma allocation structure used by ixgbe_dma_malloc and ixgbe_dma_free
 */
struct ixgbe_dma_alloc {
	bus_addr_t        dma_paddr;
	caddr_t           dma_vaddr;
	bus_dma_tag_t     dma_tag;
	bus_dmamap_t      dma_map;
	bus_dma_segment_t dma_seg;
	bus_size_t        dma_size;
	int               dma_nseg;
};

struct ixgbe_mc_addr {
	u8  addr[IXGBE_ETH_LENGTH_OF_ADDRESS];
	u32 vmdq;
};

/*
 * Driver queue struct: this is the interrupt container
 *                      for the associated tx and rx ring.
 */
struct ix_queue {
	struct adapter   *adapter;
	u32              msix;           /* This queue's MSI-X vector */
	u32              eims;           /* This queue's EIMS bit */
	u32              eitr_setting;
	u32              me;
	struct resource  *res;
	void             *tag;
	int              busy;
	struct tx_ring   *txr;
	struct rx_ring   *rxr;
	struct task      que_task;
	struct taskqueue *tq;
	u64              irqs;
};

/*
 * The transmit ring, one per queue
 */
struct tx_ring {
	struct adapter          *adapter;
	struct mtx              tx_mtx;
	u32                     me;
	u32                     tail;
	int                     busy;
	union ixgbe_adv_tx_desc *tx_base;
	struct ixgbe_tx_buf     *tx_buffers;
	struct ixgbe_dma_alloc  txdma;
	volatile u16            tx_avail;
	u16                     next_avail_desc;
	u16                     next_to_clean;
	u16                     num_desc;
	u32                     txd_cmd;
	bus_dma_tag_t           txtag;
	char                    mtx_name[16];
	struct buf_ring         *br;
	struct task             txq_task;

	/* Flow Director */
	u16                     atr_sample;
	u16                     atr_count;

	u32                     bytes;  /* used for AIM */
	u32                     packets;
	/* Soft Stats */
	u64			tso_tx;
	u64			no_tx_map_avail;
	u64			no_tx_dma_setup;
	u64                     no_desc_avail;
	u64                     total_packets;
};


/*
 * The Receive ring, one per rx queue
 */
struct rx_ring {
	struct adapter          *adapter;
	struct mtx              rx_mtx;
	u32                     me;
	u32                     tail;
	union ixgbe_adv_rx_desc *rx_base;
	struct ixgbe_dma_alloc  rxdma;
	struct lro_ctrl         lro;
	bool                    lro_enabled;
	bool                    hw_rsc;
	bool                    vtag_strip;
	u16                     next_to_refresh;
	u16                     next_to_check;
	u16                     num_desc;
	u16                     mbuf_sz;
	char                    mtx_name[16];
	struct ixgbe_rx_buf     *rx_buffers;
	bus_dma_tag_t           ptag;

	u32                     bytes; /* Used for AIM calc */
	u32                     packets;

	/* Soft stats */
	u64                     rx_irq;
	u64                     rx_copies;
	u64                     rx_packets;
	u64                     rx_bytes;
	u64                     rx_discarded;
	u64                     rsc_num;

	/* Flow Director */
	u64                     flm;
};

#define IXGBE_MAX_VF_MC 30  /* Max number of multicast entries */

struct ixgbe_vf {
	u_int    pool;
	u_int    rar_index;
	u_int    max_frame_size;
	uint32_t flags;
	uint8_t  ether_addr[ETHER_ADDR_LEN];
	uint16_t mc_hash[IXGBE_MAX_VF_MC];
	uint16_t num_mc_hashes;
	uint16_t default_vlan;
	uint16_t vlan_tag;
	uint16_t api_ver;
};

/* Our adapter structure */
struct adapter {
	struct ixgbe_hw         hw;
	struct ixgbe_osdep      osdep;

	struct device           *dev;
	struct ifnet            *ifp;

	struct resource         *pci_mem;
	struct resource         *msix_mem;

	/*
	 * Interrupt resources: this set is
	 * either used for legacy, or for Link
	 * when doing MSI-X
	 */
	void                    *tag;
	struct resource         *res;

	struct ifmedia          media;
	struct callout          timer;
	int                     link_rid;
	int                     if_flags;

	struct mtx              core_mtx;

	eventhandler_tag        vlan_attach;
	eventhandler_tag        vlan_detach;

	u16                     num_vlans;
	u16                     num_queues;

	/*
	 * Shadow VFTA table, this is needed because
	 * the real vlan filter table gets cleared during
	 * a soft reset and the driver needs to be able
	 * to repopulate it.
	 */
	u32                     shadow_vfta[IXGBE_VFTA_SIZE];

	/* Info about the interface */
	int                     advertise;  /* link speeds */
	bool                    enable_aim; /* adaptive interrupt moderation */
	bool                    link_active;
	u16                     max_frame_size;
	u16                     num_segs;
	u32                     link_speed;
	bool                    link_up;
	u32                     vector;
	u16                     dmac;
	u32                     phy_layer;

	/* Power management-related */
	bool                    wol_support;
	u32                     wufc;

	/* Mbuf cluster size */
	u32                     rx_mbuf_sz;

	/* Support for pluggable optics */
	bool                    sfp_probe;
	struct task             link_task;  /* Link tasklet */
	struct task             mod_task;   /* SFP tasklet */
	struct task             msf_task;   /* Multispeed Fiber */
	struct task             mbx_task;   /* VF -> PF mailbox interrupt */

	/* Flow Director */
	int                     fdir_reinit;
	struct task             fdir_task;

	struct task             phy_task;   /* PHY intr tasklet */
	struct taskqueue        *tq;

	/*
	 * Queues:
	 *   This is the irq holder, it has
	 *   and RX/TX pair or rings associated
	 *   with it.
	 */
	struct ix_queue         *queues;

	/*
	 * Transmit rings
	 *      Allocated at run time, an array of rings
	 */
	struct tx_ring          *tx_rings;
	u32                     num_tx_desc;
	u32                     tx_process_limit;

	/*
	 * Receive rings
	 *      Allocated at run time, an array of rings
	 */
	struct rx_ring          *rx_rings;
	u64                     active_queues;
	u32                     num_rx_desc;
	u32                     rx_process_limit;

	/* Multicast array memory */
	struct ixgbe_mc_addr    *mta;

	/* SR-IOV */
	int                     iov_mode;
	int                     num_vfs;
	int                     pool;
	struct ixgbe_vf         *vfs;

	/* Bypass */
	struct ixgbe_bp_data    bypass;

	/* Netmap */
	void                    (*init_locked)(struct adapter *);
	void                    (*stop_locked)(void *);

	/* Misc stats maintained by the driver */
	unsigned long           dropped_pkts;
	unsigned long           mbuf_defrag_failed;
	unsigned long           mbuf_header_failed;
	unsigned long           mbuf_packet_failed;
	unsigned long           watchdog_events;
	unsigned long           link_irq;
	struct ixgbevf_hw_stats stats_vf;
#if __FreeBSD_version >= 1100036
	/* counter(9) stats */
	u64                     ipackets;
	u64                     ierrors;
	u64                     opackets;
	u64                     oerrors;
	u64                     ibytes;
	u64                     obytes;
	u64                     imcasts;
	u64                     omcasts;
	u64                     iqdrops;
	u64                     noproto;
#endif
	/* Feature capable/enabled flags.  See ixgbe_features.h */
	u32                     feat_cap;
	u32                     feat_en;
};


/* Precision Time Sync (IEEE 1588) defines */
#define ETHERTYPE_IEEE1588      0x88F7
#define PICOSECS_PER_TICK       20833
#define TSYNC_UDP_PORT          319 /* UDP port for the protocol */
#define IXGBE_ADVTXD_TSTAMP     0x00080000


#define IXGBE_CORE_LOCK_INIT(_sc, _name) \
        mtx_init(&(_sc)->core_mtx, _name, "IXGBE Core Lock", MTX_DEF)
#define IXGBE_CORE_LOCK_DESTROY(_sc)      mtx_destroy(&(_sc)->core_mtx)
#define IXGBE_TX_LOCK_DESTROY(_sc)        mtx_destroy(&(_sc)->tx_mtx)
#define IXGBE_RX_LOCK_DESTROY(_sc)        mtx_destroy(&(_sc)->rx_mtx)
#define IXGBE_CORE_LOCK(_sc)              mtx_lock(&(_sc)->core_mtx)
#define IXGBE_TX_LOCK(_sc)                mtx_lock(&(_sc)->tx_mtx)
#define IXGBE_TX_TRYLOCK(_sc)             mtx_trylock(&(_sc)->tx_mtx)
#define IXGBE_RX_LOCK(_sc)                mtx_lock(&(_sc)->rx_mtx)
#define IXGBE_CORE_UNLOCK(_sc)            mtx_unlock(&(_sc)->core_mtx)
#define IXGBE_TX_UNLOCK(_sc)              mtx_unlock(&(_sc)->tx_mtx)
#define IXGBE_RX_UNLOCK(_sc)              mtx_unlock(&(_sc)->rx_mtx)
#define IXGBE_CORE_LOCK_ASSERT(_sc)       mtx_assert(&(_sc)->core_mtx, MA_OWNED)
#define IXGBE_TX_LOCK_ASSERT(_sc)         mtx_assert(&(_sc)->tx_mtx, MA_OWNED)

/* For backward compatibility */
#if !defined(PCIER_LINK_STA)
#define PCIER_LINK_STA PCIR_EXPRESS_LINK_STA
#endif

/* Stats macros */
#if __FreeBSD_version >= 1100036
#define IXGBE_SET_IPACKETS(sc, count)    (sc)->ipackets = (count)
#define IXGBE_SET_IERRORS(sc, count)     (sc)->ierrors = (count)
#define IXGBE_SET_OPACKETS(sc, count)    (sc)->opackets = (count)
#define IXGBE_SET_OERRORS(sc, count)     (sc)->oerrors = (count)
#define IXGBE_SET_COLLISIONS(sc, count)
#define IXGBE_SET_IBYTES(sc, count)      (sc)->ibytes = (count)
#define IXGBE_SET_OBYTES(sc, count)      (sc)->obytes = (count)
#define IXGBE_SET_IMCASTS(sc, count)     (sc)->imcasts = (count)
#define IXGBE_SET_OMCASTS(sc, count)     (sc)->omcasts = (count)
#define IXGBE_SET_IQDROPS(sc, count)     (sc)->iqdrops = (count)
#else
#define IXGBE_SET_IPACKETS(sc, count)    (sc)->ifp->if_ipackets = (count)
#define IXGBE_SET_IERRORS(sc, count)     (sc)->ifp->if_ierrors = (count)
#define IXGBE_SET_OPACKETS(sc, count)    (sc)->ifp->if_opackets = (count)
#define IXGBE_SET_OERRORS(sc, count)     (sc)->ifp->if_oerrors = (count)
#define IXGBE_SET_COLLISIONS(sc, count)  (sc)->ifp->if_collisions = (count)
#define IXGBE_SET_IBYTES(sc, count)      (sc)->ifp->if_ibytes = (count)
#define IXGBE_SET_OBYTES(sc, count)      (sc)->ifp->if_obytes = (count)
#define IXGBE_SET_IMCASTS(sc, count)     (sc)->ifp->if_imcasts = (count)
#define IXGBE_SET_OMCASTS(sc, count)     (sc)->ifp->if_omcasts = (count)
#define IXGBE_SET_IQDROPS(sc, count)     (sc)->ifp->if_iqdrops = (count)
#endif

/* External PHY register addresses */
#define IXGBE_PHY_CURRENT_TEMP     0xC820
#define IXGBE_PHY_OVERTEMP_STATUS  0xC830

/* Sysctl help messages; displayed with sysctl -d */
#define IXGBE_SYSCTL_DESC_ADV_SPEED \
        "\nControl advertised link speed using these flags:\n" \
        "\t0x1 - advertise 100M\n" \
        "\t0x2 - advertise 1G\n" \
        "\t0x4 - advertise 10G\n" \
        "\t0x8 - advertise 10M\n\n" \
        "\t100M and 10M are only supported on certain adapters.\n"

#define IXGBE_SYSCTL_DESC_SET_FC \
        "\nSet flow control mode using these values:\n" \
        "\t0 - off\n" \
        "\t1 - rx pause\n" \
        "\t2 - tx pause\n" \
        "\t3 - tx and rx pause"

/* Workaround to make 8.0 buildable */
#if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504
static __inline int
drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br)
{
#ifdef ALTQ
        if (ALTQ_IS_ENABLED(&ifp->if_snd))
                return (1);
#endif
        return (!buf_ring_empty(br));
}
#endif

/*
 * Find the number of unrefreshed RX descriptors
 */
static inline u16
ixgbe_rx_unrefreshed(struct rx_ring *rxr)
{
	if (rxr->next_to_check > rxr->next_to_refresh)
		return (rxr->next_to_check - rxr->next_to_refresh - 1);
	else
		return ((rxr->num_desc + rxr->next_to_check) -
		    rxr->next_to_refresh - 1);
}

static inline int
ixgbe_legacy_ring_empty(struct ifnet *ifp, struct buf_ring *dummy)
{
	UNREFERENCED_1PARAMETER(dummy);

	return IFQ_DRV_IS_EMPTY(&ifp->if_snd);
}

/*
 * This checks for a zero mac addr, something that will be likely
 * unless the Admin on the Host has created one.
 */
static inline bool
ixv_check_ether_addr(u8 *addr)
{
	bool status = TRUE;

	if ((addr[0] == 0 && addr[1]== 0 && addr[2] == 0 &&
	    addr[3] == 0 && addr[4]== 0 && addr[5] == 0))
		status = FALSE;

	return (status);
}

/* Shared Prototypes */
void ixv_legacy_start(struct ifnet *);
int  ixv_legacy_start_locked(struct ifnet *, struct tx_ring *);
int  ixv_mq_start(struct ifnet *, struct mbuf *);
int  ixv_mq_start_locked(struct ifnet *, struct tx_ring *);
void ixv_qflush(struct ifnet *);
void ixv_deferred_mq_start(void *, int);
void ixv_init_locked(struct adapter *);

int  ixv_allocate_queues(struct adapter *);
int  ixv_setup_transmit_structures(struct adapter *);
void ixv_free_transmit_structures(struct adapter *);
int  ixv_setup_receive_structures(struct adapter *);
void ixv_free_receive_structures(struct adapter *);
void ixv_txeof(struct tx_ring *);
bool ixv_rxeof(struct ix_queue *);

#include "ixv_rss.h"
#include "ixv_netmap.h"

#endif /* _IXGBE_H_ */