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ixgbe.h revision 1.17
      1 /******************************************************************************
      2 
      3   Copyright (c) 2001-2015, Intel Corporation
      4   All rights reserved.
      5 
      6   Redistribution and use in source and binary forms, with or without
      7   modification, are permitted provided that the following conditions are met:
      8 
      9    1. Redistributions of source code must retain the above copyright notice,
     10       this list of conditions and the following disclaimer.
     11 
     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.
     15 
     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.
     19 
     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.
     31 
     32 ******************************************************************************/
     33 /*
     34  * Copyright (c) 2011 The NetBSD Foundation, Inc.
     35  * All rights reserved.
     36  *
     37  * This code is derived from software contributed to The NetBSD Foundation
     38  * by Coyote Point Systems, Inc.
     39  *
     40  * Redistribution and use in source and binary forms, with or without
     41  * modification, are permitted provided that the following conditions
     42  * are met:
     43  * 1. Redistributions of source code must retain the above copyright
     44  *    notice, this list of conditions and the following disclaimer.
     45  * 2. Redistributions in binary form must reproduce the above copyright
     46  *    notice, this list of conditions and the following disclaimer in the
     47  *    documentation and/or other materials provided with the distribution.
     48  *
     49  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     50  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     51  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     52  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     53  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     54  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     55  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     56  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     57  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     58  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     59  * POSSIBILITY OF SUCH DAMAGE.
     60  */
     61 /*$FreeBSD: head/sys/dev/ixgbe/ixgbe.h 292674 2015-12-23 22:45:17Z sbruno $*/
     62 /*$NetBSD: ixgbe.h,v 1.17 2016/12/02 10:46:58 msaitoh Exp $*/
     63 
     64 
     65 #ifndef _IXGBE_H_
     66 #define _IXGBE_H_
     67 
     68 
     69 #include <sys/param.h>
     70 #include <sys/reboot.h>
     71 #include <sys/systm.h>
     72 #if __FreeBSD_version >= 800000
     73 #include <sys/buf_ring.h>
     74 #endif
     75 #include <sys/mbuf.h>
     76 #include <sys/protosw.h>
     77 #include <sys/socket.h>
     78 #include <sys/malloc.h>
     79 #include <sys/kernel.h>
     80 #include <sys/module.h>
     81 #include <sys/sockio.h>
     82 
     83 #include <net/if.h>
     84 #include <net/if_arp.h>
     85 #include <net/bpf.h>
     86 #include <net/if_ether.h>
     87 #include <net/if_dl.h>
     88 #include <net/if_media.h>
     89 
     90 #include <net/bpf.h>
     91 #include <net/if_types.h>
     92 #include <net/if_vlanvar.h>
     93 
     94 #include <netinet/in_systm.h>
     95 #include <netinet/in.h>
     96 #include <netinet/ip.h>
     97 #include <netinet/ip6.h>
     98 #include <netinet/tcp.h>
     99 #include <netinet/udp.h>
    100 
    101 #include <sys/bus.h>
    102 #include <dev/pci/pcivar.h>
    103 #include <dev/pci/pcireg.h>
    104 #include <sys/proc.h>
    105 #include <sys/sysctl.h>
    106 #include <sys/endian.h>
    107 #include <sys/workqueue.h>
    108 #include <sys/cpu.h>
    109 #include <sys/interrupt.h>
    110 
    111 #ifdef PCI_IOV
    112 #include <sys/nv.h>
    113 #include <sys/iov_schema.h>
    114 #include <dev/pci/pci_iov.h>
    115 #endif
    116 
    117 #include "ixgbe_netbsd.h"
    118 #include "ixgbe_api.h"
    119 #include "ixgbe_common.h"
    120 #include "ixgbe_phy.h"
    121 #include "ixgbe_vf.h"
    122 
    123 /* Tunables */
    124 
    125 /*
    126  * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
    127  * number of transmit descriptors allocated by the driver. Increasing this
    128  * value allows the driver to queue more transmits. Each descriptor is 16
    129  * bytes. Performance tests have show the 2K value to be optimal for top
    130  * performance.
    131  */
    132 #define DEFAULT_TXD	1024
    133 #define PERFORM_TXD	2048
    134 #define MAX_TXD		4096
    135 #define MIN_TXD		64
    136 
    137 /*
    138  * RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
    139  * number of receive descriptors allocated for each RX queue. Increasing this
    140  * value allows the driver to buffer more incoming packets. Each descriptor
    141  * is 16 bytes.  A receive buffer is also allocated for each descriptor.
    142  *
    143  * Note: with 8 rings and a dual port card, it is possible to bump up
    144  *	against the system mbuf pool limit, you can tune nmbclusters
    145  *	to adjust for this.
    146  */
    147 #define DEFAULT_RXD	1024
    148 #define PERFORM_RXD	2048
    149 #define MAX_RXD		4096
    150 #define MIN_RXD		64
    151 
    152 /* Alignment for rings */
    153 #define DBA_ALIGN	128
    154 
    155 /*
    156  * This is the max watchdog interval, ie. the time that can
    157  * pass between any two TX clean operations, such only happening
    158  * when the TX hardware is functioning.
    159  */
    160 #define IXGBE_WATCHDOG                   (10 * hz)
    161 
    162 /*
    163  * This parameters control when the driver calls the routine to reclaim
    164  * transmit descriptors.
    165  */
    166 #define IXGBE_TX_CLEANUP_THRESHOLD	(adapter->num_tx_desc / 8)
    167 #define IXGBE_TX_OP_THRESHOLD		(adapter->num_tx_desc / 32)
    168 
    169 /* These defines are used in MTU calculations */
    170 #define IXGBE_MAX_FRAME_SIZE	9728
    171 #define IXGBE_MTU_HDR		(ETHER_HDR_LEN + ETHER_CRC_LEN)
    172 #define IXGBE_MTU_HDR_VLAN	(ETHER_HDR_LEN + ETHER_CRC_LEN + \
    173 				 ETHER_VLAN_ENCAP_LEN)
    174 #define IXGBE_MAX_MTU		(IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR)
    175 #define IXGBE_MAX_MTU_VLAN	(IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR_VLAN)
    176 
    177 /* Flow control constants */
    178 #define IXGBE_FC_PAUSE		0xFFFF
    179 #define IXGBE_FC_HI		0x20000
    180 #define IXGBE_FC_LO		0x10000
    181 
    182 /*
    183  * Used for optimizing small rx mbufs.  Effort is made to keep the copy
    184  * small and aligned for the CPU L1 cache.
    185  *
    186  * MHLEN is typically 168 bytes, giving us 8-byte alignment.  Getting
    187  * 32 byte alignment needed for the fast bcopy results in 8 bytes being
    188  * wasted.  Getting 64 byte alignment, which _should_ be ideal for
    189  * modern Intel CPUs, results in 40 bytes wasted and a significant drop
    190  * in observed efficiency of the optimization, 97.9% -> 81.8%.
    191  */
    192 #define	MPKTHSIZE		(offsetof(struct _mbuf_dummy, m_pktdat))
    193 #define IXGBE_RX_COPY_HDR_PADDED	((((MPKTHSIZE - 1) / 32) + 1) * 32)
    194 #define IXGBE_RX_COPY_LEN		(MSIZE - IXGBE_RX_COPY_HDR_PADDED)
    195 #define IXGBE_RX_COPY_ALIGN		(IXGBE_RX_COPY_HDR_PADDED - MPKTHSIZE)
    196 
    197 /* Keep older OS drivers building... */
    198 #if !defined(SYSCTL_ADD_UQUAD)
    199 #define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
    200 #endif
    201 
    202 /* Defines for printing debug information */
    203 #define DEBUG_INIT  0
    204 #define DEBUG_IOCTL 0
    205 #define DEBUG_HW    0
    206 
    207 #define INIT_DEBUGOUT(S)            if (DEBUG_INIT)  printf(S "\n")
    208 #define INIT_DEBUGOUT1(S, A)        if (DEBUG_INIT)  printf(S "\n", A)
    209 #define INIT_DEBUGOUT2(S, A, B)     if (DEBUG_INIT)  printf(S "\n", A, B)
    210 #define IOCTL_DEBUGOUT(S)           if (DEBUG_IOCTL) printf(S "\n")
    211 #define IOCTL_DEBUGOUT1(S, A)       if (DEBUG_IOCTL) printf(S "\n", A)
    212 #define IOCTL_DEBUGOUT2(S, A, B)    if (DEBUG_IOCTL) printf(S "\n", A, B)
    213 #define HW_DEBUGOUT(S)              if (DEBUG_HW) printf(S "\n")
    214 #define HW_DEBUGOUT1(S, A)          if (DEBUG_HW) printf(S "\n", A)
    215 #define HW_DEBUGOUT2(S, A, B)       if (DEBUG_HW) printf(S "\n", A, B)
    216 
    217 #define MAX_NUM_MULTICAST_ADDRESSES     128
    218 #define IXGBE_82598_SCATTER		100
    219 #define IXGBE_82599_SCATTER		32
    220 #define MSIX_82598_BAR			3
    221 #define MSIX_82599_BAR			4
    222 #define IXGBE_TSO_SIZE			262140
    223 #define IXGBE_RX_HDR			128
    224 #define IXGBE_VFTA_SIZE			128
    225 #define IXGBE_BR_SIZE			4096
    226 #define IXGBE_QUEUE_MIN_FREE		32
    227 #define IXGBE_MAX_TX_BUSY		10
    228 #define IXGBE_QUEUE_HUNG		0x80000000
    229 
    230 #define IXV_EITR_DEFAULT		128
    231 
    232 /* IOCTL define to gather SFP+ Diagnostic data */
    233 #define SIOCGI2C	SIOCGIFGENERIC
    234 
    235 /* Offload bits in mbuf flag */
    236 #define	M_CSUM_OFFLOAD	\
    237     (M_CSUM_IPv4|M_CSUM_UDPv4|M_CSUM_TCPv4|M_CSUM_UDPv6|M_CSUM_TCPv6)
    238 
    239 /* Backward compatibility items for very old versions */
    240 #ifndef pci_find_cap
    241 #define pci_find_cap pci_find_extcap
    242 #endif
    243 
    244 #ifndef DEVMETHOD_END
    245 #define DEVMETHOD_END { NULL, NULL }
    246 #endif
    247 
    248 /*
    249  * Interrupt Moderation parameters
    250  */
    251 #define IXGBE_LOW_LATENCY	128
    252 #define IXGBE_AVE_LATENCY	400
    253 #define IXGBE_BULK_LATENCY	1200
    254 
    255 /* Using 1FF (the max value), the interval is ~1.05ms */
    256 #define IXGBE_LINK_ITR_QUANTA	0x1FF
    257 #define IXGBE_LINK_ITR		((IXGBE_LINK_ITR_QUANTA << 3) & \
    258 				    IXGBE_EITR_ITR_INT_MASK)
    259 
    260 /* MAC type macros */
    261 #define IXGBE_IS_X550VF(_adapter) \
    262 	((_adapter->hw.mac.type == ixgbe_mac_X550_vf) || \
    263 	 (_adapter->hw.mac.type == ixgbe_mac_X550EM_x_vf))
    264 
    265 #define IXGBE_IS_VF(_adapter) \
    266 	(IXGBE_IS_X550VF(_adapter) || \
    267 	 (_adapter->hw.mac.type == ixgbe_mac_X540_vf) || \
    268 	 (_adapter->hw.mac.type == ixgbe_mac_82599_vf))
    269 
    270 #ifdef PCI_IOV
    271 #define IXGBE_VF_INDEX(vmdq)  ((vmdq) / 32)
    272 #define IXGBE_VF_BIT(vmdq)    (1 << ((vmdq) % 32))
    273 
    274 #define IXGBE_VT_MSG_MASK	0xFFFF
    275 
    276 #define IXGBE_VT_MSGINFO(msg)	\
    277 	(((msg) & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT)
    278 
    279 #define IXGBE_VF_GET_QUEUES_RESP_LEN	5
    280 
    281 #define IXGBE_API_VER_1_0	0
    282 #define IXGBE_API_VER_2_0	1	/* Solaris API.  Not supported. */
    283 #define IXGBE_API_VER_1_1	2
    284 #define IXGBE_API_VER_UNKNOWN	UINT16_MAX
    285 
    286 enum ixgbe_iov_mode {
    287 	IXGBE_64_VM,
    288 	IXGBE_32_VM,
    289 	IXGBE_NO_VM
    290 };
    291 #endif /* PCI_IOV */
    292 
    293 
    294 /*
    295  *****************************************************************************
    296  * vendor_info_array
    297  *
    298  * This array contains the list of Subvendor/Subdevice IDs on which the driver
    299  * should load.
    300  *
    301  *****************************************************************************
    302  */
    303 typedef struct _ixgbe_vendor_info_t {
    304 	unsigned int    vendor_id;
    305 	unsigned int    device_id;
    306 	unsigned int    subvendor_id;
    307 	unsigned int    subdevice_id;
    308 	unsigned int    index;
    309 } ixgbe_vendor_info_t;
    310 
    311 /* This is used to get SFP+ module data */
    312 struct ixgbe_i2c_req {
    313         u8 dev_addr;
    314         u8 offset;
    315         u8 len;
    316         u8 data[8];
    317 };
    318 
    319 
    320 struct ixgbe_tx_buf {
    321 	union ixgbe_adv_tx_desc	*eop;
    322 	struct mbuf	*m_head;
    323 	bus_dmamap_t	map;
    324 };
    325 
    326 struct ixgbe_rx_buf {
    327 	struct mbuf	*buf;
    328 	struct mbuf	*fmp;
    329 	bus_dmamap_t	pmap;
    330 	u_int		flags;
    331 #define IXGBE_RX_COPY	0x01
    332 	uint64_t	addr;
    333 };
    334 
    335 /*
    336  * Bus dma allocation structure used by ixgbe_dma_malloc and ixgbe_dma_free.
    337  */
    338 struct ixgbe_dma_alloc {
    339 	bus_addr_t		dma_paddr;
    340 	void			*dma_vaddr;
    341 	ixgbe_dma_tag_t		*dma_tag;
    342 	bus_dmamap_t		dma_map;
    343 	bus_dma_segment_t	dma_seg;
    344 	bus_size_t		dma_size;
    345 };
    346 
    347 struct ixgbe_mc_addr {
    348 	u8 addr[IXGBE_ETH_LENGTH_OF_ADDRESS];
    349 	u32 vmdq;
    350 };
    351 
    352 /*
    353 ** Driver queue struct: this is the interrupt container
    354 **  for the associated tx and rx ring.
    355 */
    356 struct ix_queue {
    357 	struct adapter		*adapter;
    358 	u32			msix;           /* This queue's MSIX vector */
    359 	u32			eims;           /* This queue's EIMS bit */
    360 	u32			eitr_setting;
    361 	u32			me;
    362 	struct resource		*res;
    363 	void			*tag;
    364 	int			busy;
    365 	struct tx_ring		*txr;
    366 	struct rx_ring		*rxr;
    367 	void			*que_si;
    368 	struct evcnt		irqs;
    369 	char			namebuf[32];
    370 	char			evnamebuf[32];
    371 };
    372 
    373 /*
    374  * The transmit ring, one per queue
    375  */
    376 struct tx_ring {
    377         struct adapter		*adapter;
    378 	kmutex_t		tx_mtx;
    379 	u32			me;
    380 	u32			tail;
    381 	int			busy;
    382 	union ixgbe_adv_tx_desc	*tx_base;
    383 	struct ixgbe_tx_buf	*tx_buffers;
    384 	struct ixgbe_dma_alloc	txdma;
    385 	volatile u16		tx_avail;
    386 	u16			next_avail_desc;
    387 	u16			next_to_clean;
    388 	u16			num_desc;
    389 	u32			txd_cmd;
    390 	ixgbe_dma_tag_t		*txtag;
    391 	char			mtx_name[16];
    392 #ifndef IXGBE_LEGACY_TX
    393 	struct buf_ring		*br;
    394 	void			*txq_si;
    395 #endif
    396 #ifdef IXGBE_FDIR
    397 	u16			atr_sample;
    398 	u16			atr_count;
    399 #endif
    400 	u32			bytes;  /* used for AIM */
    401 	u32			packets;
    402 	/* Soft Stats */
    403 	struct evcnt	   	tso_tx;
    404 	struct evcnt	   	no_tx_map_avail;
    405 	struct evcnt		no_desc_avail;
    406 	struct evcnt		total_packets;
    407 };
    408 
    409 
    410 /*
    411  * The Receive ring, one per rx queue
    412  */
    413 struct rx_ring {
    414         struct adapter		*adapter;
    415 	kmutex_t		rx_mtx;
    416 	u32			me;
    417 	u32			tail;
    418 	union ixgbe_adv_rx_desc	*rx_base;
    419 	struct ixgbe_dma_alloc	rxdma;
    420 #ifdef LRO
    421 	struct lro_ctrl		lro;
    422 #endif /* LRO */
    423 	bool			lro_enabled;
    424 	bool			hw_rsc;
    425 	bool			vtag_strip;
    426         u16			next_to_refresh;
    427         u16 			next_to_check;
    428 	u16			num_desc;
    429 	u16			mbuf_sz;
    430 	char			mtx_name[16];
    431 	struct ixgbe_rx_buf	*rx_buffers;
    432 	ixgbe_dma_tag_t		*ptag;
    433 
    434 	u32			bytes; /* Used for AIM calc */
    435 	u32			packets;
    436 
    437 	/* Soft stats */
    438 	struct evcnt		rx_irq;
    439 	struct evcnt		rx_copies;
    440 	struct evcnt		rx_packets;
    441 	struct evcnt 		rx_bytes;
    442 	struct evcnt 		rx_discarded;
    443 	struct evcnt 		no_jmbuf;
    444 	u64 			rsc_num;
    445 #ifdef IXGBE_FDIR
    446 	u64			flm;
    447 #endif
    448 };
    449 
    450 #ifdef PCI_IOV
    451 #define IXGBE_VF_CTS		(1 << 0) /* VF is clear to send. */
    452 #define IXGBE_VF_CAP_MAC	(1 << 1) /* VF is permitted to change MAC. */
    453 #define IXGBE_VF_CAP_VLAN	(1 << 2) /* VF is permitted to join vlans. */
    454 #define IXGBE_VF_ACTIVE		(1 << 3) /* VF is active. */
    455 
    456 #define IXGBE_MAX_VF_MC 30  /* Max number of multicast entries */
    457 
    458 struct ixgbe_vf {
    459 	u_int		pool;
    460 	u_int		rar_index;
    461 	u_int		max_frame_size;
    462 	uint32_t	flags;
    463 	uint8_t		ether_addr[ETHER_ADDR_LEN];
    464 	uint16_t	mc_hash[IXGBE_MAX_VF_MC];
    465 	uint16_t	num_mc_hashes;
    466 	uint16_t	default_vlan;
    467 	uint16_t	vlan_tag;
    468 	uint16_t	api_ver;
    469 };
    470 #endif /* PCI_IOV */
    471 
    472 /* Our adapter structure */
    473 struct adapter {
    474 	struct ixgbe_hw		hw;
    475 	struct ixgbe_osdep	osdep;
    476 
    477 	device_t		dev;
    478 	struct ifnet		*ifp;
    479 
    480 	struct resource		*pci_mem;
    481 	struct resource		*msix_mem;
    482 
    483 	/*
    484 	 * Interrupt resources: this set is
    485 	 * either used for legacy, or for Link
    486 	 * when doing MSIX
    487 	 */
    488 	void			*tag;
    489 	struct resource 	*res;
    490 
    491 	struct ifmedia		media;
    492 	callout_t		timer;
    493 	int			msix;
    494 	int			if_flags;
    495 
    496 	kmutex_t		core_mtx;
    497 
    498 	unsigned int		num_queues;
    499 
    500 	/*
    501 	** Shadow VFTA table, this is needed because
    502 	** the real vlan filter table gets cleared during
    503 	** a soft reset and the driver needs to be able
    504 	** to repopulate it.
    505 	*/
    506 	u32			shadow_vfta[IXGBE_VFTA_SIZE];
    507 
    508 	/* Info about the interface */
    509 	u32			optics;
    510 	u32			fc; /* local flow ctrl setting */
    511 	int			advertise;  /* link speeds */
    512 	bool			link_active;
    513 	u16			max_frame_size;
    514 	u16			num_segs;
    515 	u32			link_speed;
    516 	bool			link_up;
    517 	u32 			vector;
    518 	u16			dmac;
    519 	bool			eee_enabled;
    520 	u32			phy_layer;
    521 
    522 	/* Power management-related */
    523 	bool			wol_support;
    524 	u32			wufc;
    525 
    526 	/* Mbuf cluster size */
    527 	u32			rx_mbuf_sz;
    528 
    529 	/* Support for pluggable optics */
    530 	bool			sfp_probe;
    531 	void			*link_si;  /* Link tasklet */
    532 	void			*mod_si;   /* SFP tasklet */
    533 	void			*msf_si;   /* Multispeed Fiber */
    534 #ifdef PCI_IOV
    535 	void			*mbx_si;   /* VF -> PF mailbox interrupt */
    536 #endif /* PCI_IOV */
    537 #ifdef IXGBE_FDIR
    538 	int			fdir_reinit;
    539 	void			*fdir_si;
    540 #endif
    541 	void			*phy_si;   /* PHY intr tasklet */
    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 	int			num_vfs;
    571 	int			pool;
    572 #ifdef PCI_IOV
    573 	struct ixgbe_vf		*vfs;
    574 #endif
    575 #ifdef DEV_NETMAP
    576 	void 			(*init_locked)(struct adapter *);
    577 	void 			(*stop_locked)(void *);
    578 #endif
    579 
    580 	/* Misc stats maintained by the driver */
    581 	struct evcnt   		dropped_pkts;
    582 	struct evcnt   		mbuf_defrag_failed;
    583 	struct evcnt	   	mbuf_header_failed;
    584 	struct evcnt	   	mbuf_packet_failed;
    585 	struct evcnt	   	efbig_tx_dma_setup;
    586 	struct evcnt	   	efbig2_tx_dma_setup;
    587 	struct evcnt	   	m_defrag_failed;
    588 	struct evcnt	   	einval_tx_dma_setup;
    589 	struct evcnt	   	other_tx_dma_setup;
    590 	struct evcnt	   	eagain_tx_dma_setup;
    591 	struct evcnt	   	enomem_tx_dma_setup;
    592 	struct evcnt	   	watchdog_events;
    593 	struct evcnt	   	tso_err;
    594 	struct evcnt		link_irq;
    595 	struct evcnt		morerx;
    596 	struct evcnt		moretx;
    597 	struct evcnt		txloops;
    598 	struct evcnt		handleq;
    599 	struct evcnt		req;
    600 
    601 	union {
    602 		struct ixgbe_hw_stats pf;
    603 		struct ixgbevf_hw_stats	vf;
    604 	} stats;
    605 #if __FreeBSD_version >= 1100036
    606 	/* counter(9) stats */
    607 	u64			ipackets;
    608 	u64			ierrors;
    609 	u64			opackets;
    610 	u64			oerrors;
    611 	u64			ibytes;
    612 	u64			obytes;
    613 	u64			imcasts;
    614 	u64			omcasts;
    615 	u64			iqdrops;
    616 	u64			noproto;
    617 #endif
    618 	struct sysctllog	*sysctllog;
    619 	ixgbe_extmem_head_t jcl_head;
    620 };
    621 
    622 
    623 /* Precision Time Sync (IEEE 1588) defines */
    624 #define ETHERTYPE_IEEE1588      0x88F7
    625 #define PICOSECS_PER_TICK       20833
    626 #define TSYNC_UDP_PORT          319 /* UDP port for the protocol */
    627 #define IXGBE_ADVTXD_TSTAMP	0x00080000
    628 
    629 
    630 #define IXGBE_CORE_LOCK_INIT(_sc, _name) \
    631         mutex_init(&(_sc)->core_mtx, MUTEX_DEFAULT, IPL_SOFTNET)
    632 #define IXGBE_CORE_LOCK_DESTROY(_sc)      mutex_destroy(&(_sc)->core_mtx)
    633 #define IXGBE_TX_LOCK_DESTROY(_sc)        mutex_destroy(&(_sc)->tx_mtx)
    634 #define IXGBE_RX_LOCK_DESTROY(_sc)        mutex_destroy(&(_sc)->rx_mtx)
    635 #define IXGBE_CORE_LOCK(_sc)              mutex_enter(&(_sc)->core_mtx)
    636 #define IXGBE_TX_LOCK(_sc)                mutex_enter(&(_sc)->tx_mtx)
    637 #define IXGBE_TX_TRYLOCK(_sc)             mutex_tryenter(&(_sc)->tx_mtx)
    638 #define IXGBE_RX_LOCK(_sc)                mutex_enter(&(_sc)->rx_mtx)
    639 #define IXGBE_CORE_UNLOCK(_sc)            mutex_exit(&(_sc)->core_mtx)
    640 #define IXGBE_TX_UNLOCK(_sc)              mutex_exit(&(_sc)->tx_mtx)
    641 #define IXGBE_RX_UNLOCK(_sc)              mutex_exit(&(_sc)->rx_mtx)
    642 #define IXGBE_CORE_LOCK_ASSERT(_sc)       KASSERT(mutex_owned(&(_sc)->core_mtx))
    643 #define IXGBE_TX_LOCK_ASSERT(_sc)         KASSERT(mutex_owned(&(_sc)->tx_mtx))
    644 
    645 /* Stats macros */
    646 #if __FreeBSD_version >= 1100036
    647 #define IXGBE_SET_IPACKETS(sc, count)    (sc)->ipackets = (count)
    648 #define IXGBE_SET_IERRORS(sc, count)     (sc)->ierrors = (count)
    649 #define IXGBE_SET_OPACKETS(sc, count)    (sc)->opackets = (count)
    650 #define IXGBE_SET_OERRORS(sc, count)     (sc)->oerrors = (count)
    651 #define IXGBE_SET_COLLISIONS(sc, count)
    652 #define IXGBE_SET_IBYTES(sc, count)      (sc)->ibytes = (count)
    653 #define IXGBE_SET_OBYTES(sc, count)      (sc)->obytes = (count)
    654 #define IXGBE_SET_IMCASTS(sc, count)     (sc)->imcasts = (count)
    655 #define IXGBE_SET_OMCASTS(sc, count)     (sc)->omcasts = (count)
    656 #define IXGBE_SET_IQDROPS(sc, count)     (sc)->iqdrops = (count)
    657 #else
    658 #define IXGBE_SET_IPACKETS(sc, count)    (sc)->ifp->if_ipackets = (count)
    659 #define IXGBE_SET_IERRORS(sc, count)     (sc)->ifp->if_ierrors = (count)
    660 #define IXGBE_SET_OPACKETS(sc, count)    (sc)->ifp->if_opackets = (count)
    661 #define IXGBE_SET_OERRORS(sc, count)     (sc)->ifp->if_oerrors = (count)
    662 #define IXGBE_SET_COLLISIONS(sc, count)  (sc)->ifp->if_collisions = (count)
    663 #define IXGBE_SET_IBYTES(sc, count)      (sc)->ifp->if_ibytes = (count)
    664 #define IXGBE_SET_OBYTES(sc, count)      (sc)->ifp->if_obytes = (count)
    665 #define IXGBE_SET_IMCASTS(sc, count)     (sc)->ifp->if_imcasts = (count)
    666 #define IXGBE_SET_OMCASTS(sc, count)     (sc)->ifp->if_omcasts = (count)
    667 #define IXGBE_SET_IQDROPS(sc, count)     (sc)->ifp->if_iqdrops = (count)
    668 #endif
    669 
    670 /* External PHY register addresses */
    671 #define IXGBE_PHY_CURRENT_TEMP		0xC820
    672 #define IXGBE_PHY_OVERTEMP_STATUS	0xC830
    673 
    674 /* Sysctl help messages; displayed with sysctl -d */
    675 #define IXGBE_SYSCTL_DESC_ADV_SPEED \
    676 	"\nControl advertised link speed using these flags:\n" \
    677 	"\t0x1 - advertise 100M\n" \
    678 	"\t0x2 - advertise 1G\n" \
    679 	"\t0x4 - advertise 10G\n\n" \
    680 	"\t100M is only supported on certain 10GBaseT adapters."
    681 
    682 #define IXGBE_SYSCTL_DESC_SET_FC \
    683 	"\nSet flow control mode using these values:\n" \
    684 	"\t0 - off\n" \
    685 	"\t1 - rx pause\n" \
    686 	"\t2 - tx pause\n" \
    687 	"\t3 - tx and rx pause"
    688 
    689 static inline bool
    690 ixgbe_is_sfp(struct ixgbe_hw *hw)
    691 {
    692 	switch (hw->phy.type) {
    693 	case ixgbe_phy_sfp_avago:
    694 	case ixgbe_phy_sfp_ftl:
    695 	case ixgbe_phy_sfp_intel:
    696 	case ixgbe_phy_sfp_unknown:
    697 	case ixgbe_phy_sfp_passive_tyco:
    698 	case ixgbe_phy_sfp_passive_unknown:
    699 	case ixgbe_phy_qsfp_passive_unknown:
    700 	case ixgbe_phy_qsfp_active_unknown:
    701 	case ixgbe_phy_qsfp_intel:
    702 	case ixgbe_phy_qsfp_unknown:
    703 		return TRUE;
    704 	default:
    705 		return FALSE;
    706 	}
    707 }
    708 
    709 /* Workaround to make 8.0 buildable */
    710 #if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504
    711 static __inline int
    712 drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br)
    713 {
    714 #ifdef ALTQ
    715         if (ALTQ_IS_ENABLED(&ifp->if_snd))
    716                 return (1);
    717 #endif
    718         return (!buf_ring_empty(br));
    719 }
    720 #endif
    721 
    722 /*
    723 ** Find the number of unrefreshed RX descriptors
    724 */
    725 static inline u16
    726 ixgbe_rx_unrefreshed(struct rx_ring *rxr)
    727 {
    728 	if (rxr->next_to_check > rxr->next_to_refresh)
    729 		return (rxr->next_to_check - rxr->next_to_refresh - 1);
    730 	else
    731 		return ((rxr->num_desc + rxr->next_to_check) -
    732 		    rxr->next_to_refresh - 1);
    733 }
    734 
    735 /*
    736 ** This checks for a zero mac addr, something that will be likely
    737 ** unless the Admin on the Host has created one.
    738 */
    739 static inline bool
    740 ixv_check_ether_addr(u8 *addr)
    741 {
    742 	bool status = TRUE;
    743 
    744 	if ((addr[0] == 0 && addr[1]== 0 && addr[2] == 0 &&
    745 	    addr[3] == 0 && addr[4]== 0 && addr[5] == 0))
    746 		status = FALSE;
    747 	return (status);
    748 }
    749 
    750 /* Shared Prototypes */
    751 
    752 #ifdef IXGBE_LEGACY_TX
    753 void	ixgbe_start(struct ifnet *);
    754 void	ixgbe_start_locked(struct tx_ring *, struct ifnet *);
    755 #else /* ! IXGBE_LEGACY_TX */
    756 int	ixgbe_mq_start(struct ifnet *, struct mbuf *);
    757 int	ixgbe_mq_start_locked(struct ifnet *, struct tx_ring *);
    758 void	ixgbe_qflush(struct ifnet *);
    759 void	ixgbe_deferred_mq_start(void *, int);
    760 #endif /* IXGBE_LEGACY_TX */
    761 
    762 int	ixgbe_allocate_queues(struct adapter *);
    763 int	ixgbe_allocate_transmit_buffers(struct tx_ring *);
    764 int	ixgbe_setup_transmit_structures(struct adapter *);
    765 void	ixgbe_free_transmit_structures(struct adapter *);
    766 int	ixgbe_allocate_receive_buffers(struct rx_ring *);
    767 int	ixgbe_setup_receive_structures(struct adapter *);
    768 void	ixgbe_free_receive_structures(struct adapter *);
    769 void	ixgbe_txeof(struct tx_ring *);
    770 bool	ixgbe_rxeof(struct ix_queue *);
    771 
    772 int	ixgbe_dma_malloc(struct adapter *,
    773 	    bus_size_t, struct ixgbe_dma_alloc *, int);
    774 void	ixgbe_dma_free(struct adapter *, struct ixgbe_dma_alloc *);
    775 
    776 #ifdef PCI_IOV
    777 
    778 static inline boolean_t
    779 ixgbe_vf_mac_changed(struct ixgbe_vf *vf, const uint8_t *mac)
    780 {
    781 	return (bcmp(mac, vf->ether_addr, ETHER_ADDR_LEN) != 0);
    782 }
    783 
    784 static inline void
    785 ixgbe_send_vf_msg(struct adapter *adapter, struct ixgbe_vf *vf, u32 msg)
    786 {
    787 
    788 	if (vf->flags & IXGBE_VF_CTS)
    789 		msg |= IXGBE_VT_MSGTYPE_CTS;
    790 
    791 	ixgbe_write_mbx(&adapter->hw, &msg, 1, vf->pool);
    792 }
    793 
    794 static inline void
    795 ixgbe_send_vf_ack(struct adapter *adapter, struct ixgbe_vf *vf, u32 msg)
    796 {
    797 	msg &= IXGBE_VT_MSG_MASK;
    798 	ixgbe_send_vf_msg(adapter, vf, msg | IXGBE_VT_MSGTYPE_ACK);
    799 }
    800 
    801 static inline void
    802 ixgbe_send_vf_nack(struct adapter *adapter, struct ixgbe_vf *vf, u32 msg)
    803 {
    804 	msg &= IXGBE_VT_MSG_MASK;
    805 	ixgbe_send_vf_msg(adapter, vf, msg | IXGBE_VT_MSGTYPE_NACK);
    806 }
    807 
    808 static inline void
    809 ixgbe_process_vf_ack(struct adapter *adapter, struct ixgbe_vf *vf)
    810 {
    811 	if (!(vf->flags & IXGBE_VF_CTS))
    812 		ixgbe_send_vf_nack(adapter, vf, 0);
    813 }
    814 
    815 static inline enum ixgbe_iov_mode
    816 ixgbe_get_iov_mode(struct adapter *adapter)
    817 {
    818 	if (adapter->num_vfs == 0)
    819 		return (IXGBE_NO_VM);
    820 	if (adapter->num_queues <= 2)
    821 		return (IXGBE_64_VM);
    822 	else if (adapter->num_queues <= 4)
    823 		return (IXGBE_32_VM);
    824 	else
    825 		return (IXGBE_NO_VM);
    826 }
    827 
    828 static inline u16
    829 ixgbe_max_vfs(enum ixgbe_iov_mode mode)
    830 {
    831 	/*
    832 	 * We return odd numbers below because we
    833 	 * reserve 1 VM's worth of queues for the PF.
    834 	 */
    835 	switch (mode) {
    836 	case IXGBE_64_VM:
    837 		return (63);
    838 	case IXGBE_32_VM:
    839 		return (31);
    840 	case IXGBE_NO_VM:
    841 	default:
    842 		return (0);
    843 	}
    844 }
    845 
    846 static inline int
    847 ixgbe_vf_queues(enum ixgbe_iov_mode mode)
    848 {
    849 	switch (mode) {
    850 	case IXGBE_64_VM:
    851 		return (2);
    852 	case IXGBE_32_VM:
    853 		return (4);
    854 	case IXGBE_NO_VM:
    855 	default:
    856 		return (0);
    857 	}
    858 }
    859 
    860 static inline int
    861 ixgbe_vf_que_index(enum ixgbe_iov_mode mode, u32 vfnum, int num)
    862 {
    863 	return ((vfnum * ixgbe_vf_queues(mode)) + num);
    864 }
    865 
    866 static inline int
    867 ixgbe_pf_que_index(enum ixgbe_iov_mode mode, int num)
    868 {
    869 	return (ixgbe_vf_que_index(mode, ixgbe_max_vfs(mode), num));
    870 }
    871 
    872 static inline void
    873 ixgbe_update_max_frame(struct adapter * adapter, int max_frame)
    874 {
    875 	if (adapter->max_frame_size < max_frame)
    876 		adapter->max_frame_size = max_frame;
    877 }
    878 
    879 static inline u32
    880 ixgbe_get_mrqc(enum ixgbe_iov_mode mode)
    881 {
    882        u32 mrqc = 0;
    883        switch (mode) {
    884        case IXGBE_64_VM:
    885                mrqc = IXGBE_MRQC_VMDQRSS64EN;
    886                break;
    887        case IXGBE_32_VM:
    888                mrqc = IXGBE_MRQC_VMDQRSS32EN;
    889                break;
    890         case IXGBE_NO_VM:
    891                 mrqc = 0;
    892                 break;
    893        default:
    894             panic("Unexpected SR-IOV mode %d", mode);
    895        }
    896         return(mrqc);
    897 }
    898 
    899 
    900 static inline u32
    901 ixgbe_get_mtqc(enum ixgbe_iov_mode mode)
    902 {
    903        uint32_t mtqc = 0;
    904         switch (mode) {
    905         case IXGBE_64_VM:
    906                mtqc |= IXGBE_MTQC_64VF | IXGBE_MTQC_VT_ENA;
    907                 break;
    908         case IXGBE_32_VM:
    909                mtqc |= IXGBE_MTQC_32VF | IXGBE_MTQC_VT_ENA;
    910                 break;
    911         case IXGBE_NO_VM:
    912                 mtqc = IXGBE_MTQC_64Q_1PB;
    913                 break;
    914         default:
    915                 panic("Unexpected SR-IOV mode %d", mode);
    916         }
    917         return(mtqc);
    918 }
    919 #endif /* PCI_IOV */
    920 
    921 #endif /* _IXGBE_H_ */
    922