xref: /src/sys/dev/pci/ixgbe/ixgbe.h

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  modification, are permitted provided that the following conditions are met:

   1. Redistributions of source code must retain the above copyright notice,
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/*
 * Copyright (c) 2011 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Coyote Point Systems, Inc.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
/*$FreeBSD: head/sys/dev/ixgbe/ixgbe.h 283893 2015-06-01 20:05:06Z jhb $*/
/*$NetBSD: ixgbe.h,v 1.14 2016/12/02 10:24:31 msaitoh Exp $*/


#ifndef _IXGBE_H_
#define _IXGBE_H_


#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/systm.h>
#if __FreeBSD_version >= 800000
#include <sys/buf_ring.h>
#endif
#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 <net/if.h>
#include <net/if_arp.h>
#include <net/bpf.h>
#include <net/if_ether.h>
#include <net/if_dl.h>
#include <net/if_media.h>

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

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

#include <sys/bus.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/workqueue.h>
#include <sys/cpu.h>
#include <sys/interrupt.h>

#ifdef PCI_IOV
#include <sys/nv.h>
#include <sys/iov_schema.h>
#include <dev/pci/pci_iov.h>
#endif

#include "ixgbe_netbsd.h"
#include "ixgbe_api.h"
#include "ixgbe_common.h"
#include "ixgbe_phy.h"
#include "ixgbe_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 parameter controls the maximum no of times the driver will loop in
 * the isr. Minimum Value = 1
 */
#define MAX_LOOP	10

/*
 * 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	(adapter->num_tx_desc / 8)
#define IXGBE_TX_OP_THRESHOLD		(adapter->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 + \
				 ETHER_VLAN_ENCAP_LEN)
#define IXGBE_MAX_MTU		(IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR)

/* 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%.
 */
#define	MPKTHSIZE		(offsetof(struct _mbuf_dummy, m_pktdat))
#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_TX_BUFFER_SIZE		((u32) 1514)
#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 IXV_EITR_DEFAULT		128

#define IXV_EITR_DEFAULT		128

/* IOCTL define to gather SFP+ Diagnostic data */
#define SIOCGI2C	SIOCGIFGENERIC

/* Offload bits in mbuf flag */
#define	M_CSUM_OFFLOAD	\
    (M_CSUM_IPv4|M_CSUM_UDPv4|M_CSUM_TCPv4|M_CSUM_UDPv6|M_CSUM_TCPv6)

/* 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
#define IXGBE_LINK_ITR		2000

/* 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))

#define IXGBE_IS_VF(_adapter) \
	(IXGBE_IS_X550VF(_adapter) || \
	 (_adapter->hw.mac.type == ixgbe_mac_X540_vf) || \
	 (_adapter->hw.mac.type == ixgbe_mac_82599_vf))

#ifdef PCI_IOV
#define IXGBE_VF_INDEX(vmdq)  ((vmdq) / 32)
#define IXGBE_VF_BIT(vmdq)    (1 << ((vmdq) % 32))

#define IXGBE_VT_MSG_MASK	0xFFFF

#define IXGBE_VT_MSGINFO(msg)	\
	(((msg) & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT)

#define IXGBE_VF_GET_QUEUES_RESP_LEN	5

#define IXGBE_API_VER_1_0	0
#define IXGBE_API_VER_2_0	1	/* Solaris API.  Not supported. */
#define IXGBE_API_VER_1_1	2
#define IXGBE_API_VER_UNKNOWN	UINT16_MAX

enum ixgbe_iov_mode {
	IXGBE_64_VM,
	IXGBE_32_VM,
	IXGBE_NO_VM
};
#endif /* PCI_IOV */


/*
 *****************************************************************************
 * 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;

/* This is used to get SFP+ module data */
struct ixgbe_i2c_req {
        u8 dev_addr;
        u8 offset;
        u8 len;
        u8 data[8];
};


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;
	void			*dma_vaddr;
	ixgbe_dma_tag_t		*dma_tag;
	bus_dmamap_t		dma_map;
	bus_dma_segment_t	dma_seg;
	bus_size_t		dma_size;
};

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 MSIX 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;
	void			*que_si;
	struct evcnt		irqs;
	char			namebuf[32];
	char			evnamebuf[32];
};

/*
 * The transmit ring, one per queue
 */
struct tx_ring {
        struct adapter		*adapter;
	kmutex_t		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;
	u32			process_limit;
	u16			num_desc;
	u32			txd_cmd;
	ixgbe_dma_tag_t		*txtag;
	char			mtx_name[16];
#ifndef IXGBE_LEGACY_TX
	struct buf_ring		*br;
	void			*txq_si;
#endif
#ifdef IXGBE_FDIR
	u16			atr_sample;
	u16			atr_count;
#endif
	u32			bytes;  /* used for AIM */
	u32			packets;
	/* Soft Stats */
	struct evcnt	   	tso_tx;
	struct evcnt	   	no_tx_map_avail;
	struct evcnt		no_desc_avail;
	struct evcnt		total_packets;
};


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

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

	/* Soft stats */
	struct evcnt		rx_irq;
	struct evcnt		rx_copies;
	struct evcnt		rx_packets;
	struct evcnt 		rx_bytes;
	struct evcnt 		rx_discarded;
	struct evcnt 		no_jmbuf;
	u64 			rsc_num;
#ifdef IXGBE_FDIR
	u64			flm;
#endif
};

#ifdef PCI_IOV
#define IXGBE_VF_CTS		(1 << 0) /* VF is clear to send. */
#define IXGBE_VF_CAP_MAC	(1 << 1) /* VF is permitted to change MAC. */
#define IXGBE_VF_CAP_VLAN	(1 << 2) /* VF is permitted to join vlans. */
#define IXGBE_VF_ACTIVE		(1 << 3) /* VF is active. */

#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;
};
#endif /* PCI_IOV */

/* Our adapter structure */
struct adapter {
	struct ifnet		*ifp;
	struct ixgbe_hw		hw;

	struct ixgbe_osdep	osdep;
	device_t		dev;

	struct resource		*pci_mem;
	struct resource		*msix_mem;

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

	struct ifmedia		media;
	callout_t		timer;
	int			msix;
	int			if_flags;

	kmutex_t		core_mtx;

	unsigned int		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 */
	u32			optics;
	u32			fc; /* local flow ctrl setting */
	int			advertise;  /* link speeds */
	bool			link_active;
	u16			max_frame_size;
	u16			num_segs;
	u32			link_speed;
	bool			link_up;
	u32 			vector;
	u16			dmac;
	bool			eee_enabled;
	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;
	void			*link_si;  /* Link tasklet */
	void			*mod_si;   /* SFP tasklet */
	void			*msf_si;   /* Multispeed Fiber */
#ifdef PCI_IOV
	void			*mbx_si;   /* VF -> PF mailbox interrupt */
#endif /* PCI_IOV */
#ifdef IXGBE_FDIR
	int			fdir_reinit;
	void			*fdir_si;
#endif
	void			*phy_si;   /* PHY intr tasklet */

	/*
	** 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;

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

	/* Multicast array memory */
	struct ixgbe_mc_addr	*mta;
	int			num_vfs;
	int			pool;
#ifdef PCI_IOV
	struct ixgbe_vf		*vfs;
#endif

	/* Misc stats maintained by the driver */
	struct evcnt   		dropped_pkts;
	struct evcnt   		mbuf_defrag_failed;
	struct evcnt	   	mbuf_header_failed;
	struct evcnt	   	mbuf_packet_failed;
	struct evcnt	   	efbig_tx_dma_setup;
	struct evcnt	   	efbig2_tx_dma_setup;
	struct evcnt	   	m_defrag_failed;
	struct evcnt	   	einval_tx_dma_setup;
	struct evcnt	   	other_tx_dma_setup;
	struct evcnt	   	eagain_tx_dma_setup;
	struct evcnt	   	enomem_tx_dma_setup;
	struct evcnt	   	watchdog_events;
	struct evcnt	   	tso_err;
	struct evcnt		link_irq;
	struct evcnt		morerx;
	struct evcnt		moretx;
	struct evcnt		txloops;
	struct evcnt		handleq;
	struct evcnt		req;

	union {
		struct ixgbe_hw_stats pf;
		struct ixgbevf_hw_stats	vf;
	} stats;
#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
	struct sysctllog	*sysctllog;
	ixgbe_extmem_head_t jcl_head;
};


/* 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) \
        mutex_init(&(_sc)->core_mtx, MUTEX_DEFAULT, IPL_SOFTNET)
#define IXGBE_CORE_LOCK_DESTROY(_sc)      mutex_destroy(&(_sc)->core_mtx)
#define IXGBE_TX_LOCK_DESTROY(_sc)        mutex_destroy(&(_sc)->tx_mtx)
#define IXGBE_RX_LOCK_DESTROY(_sc)        mutex_destroy(&(_sc)->rx_mtx)
#define IXGBE_CORE_LOCK(_sc)              mutex_enter(&(_sc)->core_mtx)
#define IXGBE_TX_LOCK(_sc)                mutex_enter(&(_sc)->tx_mtx)
#define IXGBE_TX_TRYLOCK(_sc)             mutex_tryenter(&(_sc)->tx_mtx)
#define IXGBE_RX_LOCK(_sc)                mutex_enter(&(_sc)->rx_mtx)
#define IXGBE_CORE_UNLOCK(_sc)            mutex_exit(&(_sc)->core_mtx)
#define IXGBE_TX_UNLOCK(_sc)              mutex_exit(&(_sc)->tx_mtx)
#define IXGBE_RX_UNLOCK(_sc)              mutex_exit(&(_sc)->rx_mtx)
#define IXGBE_CORE_LOCK_ASSERT(_sc)       KASSERT(mutex_owned(&(_sc)->core_mtx))
#define IXGBE_TX_LOCK_ASSERT(_sc)         KASSERT(mutex_owned(&(_sc)->tx_mtx))

/* 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\n" \
	"\t100M is only supported on certain 10GBaseT 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"

static inline bool
ixgbe_is_sfp(struct ixgbe_hw *hw)
{
	switch (hw->phy.type) {
	case ixgbe_phy_sfp_avago:
	case ixgbe_phy_sfp_ftl:
	case ixgbe_phy_sfp_intel:
	case ixgbe_phy_sfp_unknown:
	case ixgbe_phy_sfp_passive_tyco:
	case ixgbe_phy_sfp_passive_unknown:
	case ixgbe_phy_qsfp_passive_unknown:
	case ixgbe_phy_qsfp_active_unknown:
	case ixgbe_phy_qsfp_intel:
	case ixgbe_phy_qsfp_unknown:
		return TRUE;
	default:
		return FALSE;
	}
}

/* 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);
}

/*
** 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 */

#ifdef IXGBE_LEGACY_TX
void	ixgbe_start(struct ifnet *);
void	ixgbe_start_locked(struct tx_ring *, struct ifnet *);
#else /* ! IXGBE_LEGACY_TX */
int	ixgbe_mq_start(struct ifnet *, struct mbuf *);
int	ixgbe_mq_start_locked(struct ifnet *, struct tx_ring *);
void	ixgbe_qflush(struct ifnet *);
void	ixgbe_deferred_mq_start(void *, int);
#endif /* IXGBE_LEGACY_TX */

int	ixgbe_allocate_queues(struct adapter *);
int	ixgbe_allocate_transmit_buffers(struct tx_ring *);
int	ixgbe_setup_transmit_structures(struct adapter *);
void	ixgbe_free_transmit_structures(struct adapter *);
int	ixgbe_allocate_receive_buffers(struct rx_ring *);
int	ixgbe_setup_receive_structures(struct adapter *);
void	ixgbe_free_receive_structures(struct adapter *);
void	ixgbe_txeof(struct tx_ring *);
bool	ixgbe_rxeof(struct ix_queue *);

int	ixgbe_dma_malloc(struct adapter *,
	    bus_size_t, struct ixgbe_dma_alloc *, int);
void	ixgbe_dma_free(struct adapter *, struct ixgbe_dma_alloc *);

#ifdef PCI_IOV

static inline boolean_t
ixgbe_vf_mac_changed(struct ixgbe_vf *vf, const uint8_t *mac)
{
	return (bcmp(mac, vf->ether_addr, ETHER_ADDR_LEN) != 0);
}

static inline void
ixgbe_send_vf_msg(struct adapter *adapter, struct ixgbe_vf *vf, u32 msg)
{

	if (vf->flags & IXGBE_VF_CTS)
		msg |= IXGBE_VT_MSGTYPE_CTS;

	ixgbe_write_mbx(&adapter->hw, &msg, 1, vf->pool);
}

static inline void
ixgbe_send_vf_ack(struct adapter *adapter, struct ixgbe_vf *vf, u32 msg)
{
	msg &= IXGBE_VT_MSG_MASK;
	ixgbe_send_vf_msg(adapter, vf, msg | IXGBE_VT_MSGTYPE_ACK);
}

static inline void
ixgbe_send_vf_nack(struct adapter *adapter, struct ixgbe_vf *vf, u32 msg)
{
	msg &= IXGBE_VT_MSG_MASK;
	ixgbe_send_vf_msg(adapter, vf, msg | IXGBE_VT_MSGTYPE_NACK);
}

static inline void
ixgbe_process_vf_ack(struct adapter *adapter, struct ixgbe_vf *vf)
{
	if (!(vf->flags & IXGBE_VF_CTS))
		ixgbe_send_vf_nack(adapter, vf, 0);
}

static inline enum ixgbe_iov_mode
ixgbe_get_iov_mode(struct adapter *adapter)
{
	if (adapter->num_vfs == 0)
		return (IXGBE_NO_VM);
	if (adapter->num_queues <= 2)
		return (IXGBE_64_VM);
	else if (adapter->num_queues <= 4)
		return (IXGBE_32_VM);
	else
		return (IXGBE_NO_VM);
}

static inline u16
ixgbe_max_vfs(enum ixgbe_iov_mode mode)
{
	/*
	 * We return odd numbers below because we
	 * reserve 1 VM's worth of queues for the PF.
	 */
	switch (mode) {
	case IXGBE_64_VM:
		return (63);
	case IXGBE_32_VM:
		return (31);
	case IXGBE_NO_VM:
	default:
		return (0);
	}
}

static inline int
ixgbe_vf_queues(enum ixgbe_iov_mode mode)
{
	switch (mode) {
	case IXGBE_64_VM:
		return (2);
	case IXGBE_32_VM:
		return (4);
	case IXGBE_NO_VM:
	default:
		return (0);
	}
}

static inline int
ixgbe_vf_que_index(enum ixgbe_iov_mode mode, u32 vfnum, int num)
{
	return ((vfnum * ixgbe_vf_queues(mode)) + num);
}

static inline int
ixgbe_pf_que_index(enum ixgbe_iov_mode mode, int num)
{
	return (ixgbe_vf_que_index(mode, ixgbe_max_vfs(mode), num));
}

static inline void
ixgbe_update_max_frame(struct adapter * adapter, int max_frame)
{
	if (adapter->max_frame_size < max_frame)
		adapter->max_frame_size = max_frame;
}

static inline u32
ixgbe_get_mrqc(enum ixgbe_iov_mode mode)
{
       u32 mrqc = 0;
       switch (mode) {
       case IXGBE_64_VM:
               mrqc = IXGBE_MRQC_VMDQRSS64EN;
               break;
       case IXGBE_32_VM:
               mrqc = IXGBE_MRQC_VMDQRSS32EN;
               break;
        case IXGBE_NO_VM:
                mrqc = 0;
                break;
       default:
            panic("Unexpected SR-IOV mode %d", mode);
       }
        return(mrqc);
}


static inline u32
ixgbe_get_mtqc(enum ixgbe_iov_mode mode)
{
       uint32_t mtqc = 0;
        switch (mode) {
        case IXGBE_64_VM:
               mtqc |= IXGBE_MTQC_64VF | IXGBE_MTQC_VT_ENA;
                break;
        case IXGBE_32_VM:
               mtqc |= IXGBE_MTQC_32VF | IXGBE_MTQC_VT_ENA;
                break;
        case IXGBE_NO_VM:
                mtqc = IXGBE_MTQC_64Q_1PB;
                break;
        default:
                panic("Unexpected SR-IOV mode %d", mode);
        }
        return(mtqc);
}
#endif /* PCI_IOV */

#endif /* _IXGBE_H_ */