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      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 303890 2016-08-09 19:32:06Z dumbbell $*/
     62 /*$NetBSD: ixgbe.h,v 1.23 2017/02/10 06:35:22 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 #include <sys/pcq.h>
     73 #include <sys/mbuf.h>
     74 #include <sys/protosw.h>
     75 #include <sys/socket.h>
     76 #include <sys/malloc.h>
     77 #include <sys/kernel.h>
     78 #include <sys/module.h>
     79 #include <sys/sockio.h>
     80 
     81 #include <net/if.h>
     82 #include <net/if_arp.h>
     83 #include <net/bpf.h>
     84 #include <net/if_ether.h>
     85 #include <net/if_dl.h>
     86 #include <net/if_media.h>
     87 
     88 #include <net/bpf.h>
     89 #include <net/if_types.h>
     90 #include <net/if_vlanvar.h>
     91 
     92 #include <netinet/in_systm.h>
     93 #include <netinet/in.h>
     94 #include <netinet/ip.h>
     95 #include <netinet/ip6.h>
     96 #include <netinet/tcp.h>
     97 #include <netinet/udp.h>
     98 
     99 #include <sys/bus.h>
    100 #include <dev/pci/pcivar.h>
    101 #include <dev/pci/pcireg.h>
    102 #include <sys/proc.h>
    103 #include <sys/sysctl.h>
    104 #include <sys/endian.h>
    105 #include <sys/workqueue.h>
    106 #include <sys/cpu.h>
    107 #include <sys/interrupt.h>
    108 #include <sys/bitops.h>
    109 
    110 #ifdef PCI_IOV
    111 #include <sys/nv.h>
    112 #include <sys/iov_schema.h>
    113 #include <dev/pci/pci_iov.h>
    114 #endif
    115 
    116 #include "ixgbe_netbsd.h"
    117 #include "ixgbe_api.h"
    118 #include "ixgbe_common.h"
    119 #include "ixgbe_phy.h"
    120 #include "ixgbe_vf.h"
    121 
    122 /* Tunables */
    123 
    124 /*
    125  * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
    126  * number of transmit descriptors allocated by the driver. Increasing this
    127  * value allows the driver to queue more transmits. Each descriptor is 16
    128  * bytes. Performance tests have show the 2K value to be optimal for top
    129  * performance.
    130  */
    131 #define DEFAULT_TXD	1024
    132 #define PERFORM_TXD	2048
    133 #define MAX_TXD		4096
    134 #define MIN_TXD		64
    135 
    136 /*
    137  * RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
    138  * number of receive descriptors allocated for each RX queue. Increasing this
    139  * value allows the driver to buffer more incoming packets. Each descriptor
    140  * is 16 bytes.  A receive buffer is also allocated for each descriptor.
    141  *
    142  * Note: with 8 rings and a dual port card, it is possible to bump up
    143  *	against the system mbuf pool limit, you can tune nmbclusters
    144  *	to adjust for this.
    145  */
    146 #define DEFAULT_RXD	1024
    147 #define PERFORM_RXD	2048
    148 #define MAX_RXD		4096
    149 #define MIN_RXD		64
    150 
    151 /* Alignment for rings */
    152 #define DBA_ALIGN	128
    153 
    154 /*
    155  * This is the max watchdog interval, ie. the time that can
    156  * pass between any two TX clean operations, such only happening
    157  * when the TX hardware is functioning.
    158  */
    159 #define IXGBE_WATCHDOG                   (10 * hz)
    160 
    161 /*
    162  * This parameters control when the driver calls the routine to reclaim
    163  * transmit descriptors.
    164  */
    165 #define IXGBE_TX_CLEANUP_THRESHOLD	(adapter->num_tx_desc / 8)
    166 #define IXGBE_TX_OP_THRESHOLD		(adapter->num_tx_desc / 32)
    167 
    168 /* These defines are used in MTU calculations */
    169 #define IXGBE_MAX_FRAME_SIZE	9728
    170 #define IXGBE_MTU_HDR		(ETHER_HDR_LEN + ETHER_CRC_LEN)
    171 #define IXGBE_MTU_HDR_VLAN	(ETHER_HDR_LEN + ETHER_CRC_LEN + \
    172 				 ETHER_VLAN_ENCAP_LEN)
    173 #define IXGBE_MAX_MTU		(IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR)
    174 #define IXGBE_MAX_MTU_VLAN	(IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR_VLAN)
    175 
    176 /* Flow control constants */
    177 #define IXGBE_FC_PAUSE		0xFFFF
    178 #define IXGBE_FC_HI		0x20000
    179 #define IXGBE_FC_LO		0x10000
    180 
    181 /*
    182  * Used for optimizing small rx mbufs.  Effort is made to keep the copy
    183  * small and aligned for the CPU L1 cache.
    184  *
    185  * MHLEN is typically 168 bytes, giving us 8-byte alignment.  Getting
    186  * 32 byte alignment needed for the fast bcopy results in 8 bytes being
    187  * wasted.  Getting 64 byte alignment, which _should_ be ideal for
    188  * modern Intel CPUs, results in 40 bytes wasted and a significant drop
    189  * in observed efficiency of the optimization, 97.9% -> 81.8%.
    190  */
    191 #define	MPKTHSIZE		(offsetof(struct _mbuf_dummy, m_pktdat))
    192 #define IXGBE_RX_COPY_HDR_PADDED	((((MPKTHSIZE - 1) / 32) + 1) * 32)
    193 #define IXGBE_RX_COPY_LEN		(MSIZE - IXGBE_RX_COPY_HDR_PADDED)
    194 #define IXGBE_RX_COPY_ALIGN		(IXGBE_RX_COPY_HDR_PADDED - MPKTHSIZE)
    195 
    196 /* Keep older OS drivers building... */
    197 #if !defined(SYSCTL_ADD_UQUAD)
    198 #define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
    199 #endif
    200 
    201 /* Defines for printing debug information */
    202 #define DEBUG_INIT  0
    203 #define DEBUG_IOCTL 0
    204 #define DEBUG_HW    0
    205 
    206 #define INIT_DEBUGOUT(S)            if (DEBUG_INIT)  printf(S "\n")
    207 #define INIT_DEBUGOUT1(S, A)        if (DEBUG_INIT)  printf(S "\n", A)
    208 #define INIT_DEBUGOUT2(S, A, B)     if (DEBUG_INIT)  printf(S "\n", A, B)
    209 #define IOCTL_DEBUGOUT(S)           if (DEBUG_IOCTL) printf(S "\n")
    210 #define IOCTL_DEBUGOUT1(S, A)       if (DEBUG_IOCTL) printf(S "\n", A)
    211 #define IOCTL_DEBUGOUT2(S, A, B)    if (DEBUG_IOCTL) printf(S "\n", A, B)
    212 #define HW_DEBUGOUT(S)              if (DEBUG_HW) printf(S "\n")
    213 #define HW_DEBUGOUT1(S, A)          if (DEBUG_HW) printf(S "\n", A)
    214 #define HW_DEBUGOUT2(S, A, B)       if (DEBUG_HW) printf(S "\n", A, B)
    215 
    216 #define MAX_NUM_MULTICAST_ADDRESSES     128
    217 #define IXGBE_82598_SCATTER		100
    218 #define IXGBE_82599_SCATTER		32
    219 #define MSIX_82598_BAR			3
    220 #define MSIX_82599_BAR			4
    221 #define IXGBE_TSO_SIZE			262140
    222 #define IXGBE_RX_HDR			128
    223 #define IXGBE_VFTA_SIZE			128
    224 #define IXGBE_BR_SIZE			4096
    225 #define IXGBE_QUEUE_MIN_FREE		32
    226 #define IXGBE_MAX_TX_BUSY		10
    227 #define IXGBE_QUEUE_HUNG		0x80000000
    228 
    229 #define IXV_EITR_DEFAULT		128
    230 
    231 /* IOCTL define to gather SFP+ Diagnostic data */
    232 #define SIOCGI2C	SIOCGIFGENERIC
    233 
    234 /* Offload bits in mbuf flag */
    235 #define	M_CSUM_OFFLOAD	\
    236     (M_CSUM_IPv4|M_CSUM_UDPv4|M_CSUM_TCPv4|M_CSUM_UDPv6|M_CSUM_TCPv6)
    237 
    238 /* Backward compatibility items for very old versions */
    239 #ifndef pci_find_cap
    240 #define pci_find_cap pci_find_extcap
    241 #endif
    242 
    243 #ifndef DEVMETHOD_END
    244 #define DEVMETHOD_END { NULL, NULL }
    245 #endif
    246 
    247 /*
    248  * Interrupt Moderation parameters
    249  */
    250 #define IXGBE_LOW_LATENCY	128
    251 #define IXGBE_AVE_LATENCY	400
    252 #define IXGBE_BULK_LATENCY	1200
    253 
    254 /* Using 1FF (the max value), the interval is ~1.05ms */
    255 #define IXGBE_LINK_ITR_QUANTA	0x1FF
    256 #define IXGBE_LINK_ITR		((IXGBE_LINK_ITR_QUANTA << 3) & \
    257 				    IXGBE_EITR_ITR_INT_MASK)
    258 
    259 /* MAC type macros */
    260 #define IXGBE_IS_X550VF(_adapter) \
    261 	((_adapter->hw.mac.type == ixgbe_mac_X550_vf) || \
    262 	 (_adapter->hw.mac.type == ixgbe_mac_X550EM_x_vf))
    263 
    264 #define IXGBE_IS_VF(_adapter) \
    265 	(IXGBE_IS_X550VF(_adapter) || \
    266 	 (_adapter->hw.mac.type == ixgbe_mac_X540_vf) || \
    267 	 (_adapter->hw.mac.type == ixgbe_mac_82599_vf))
    268 
    269 #ifdef PCI_IOV
    270 #define IXGBE_VF_INDEX(vmdq)  ((vmdq) / 32)
    271 #define IXGBE_VF_BIT(vmdq)    (1 << ((vmdq) % 32))
    272 
    273 #define IXGBE_VT_MSG_MASK	0xFFFF
    274 
    275 #define IXGBE_VT_MSGINFO(msg)	\
    276 	(((msg) & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT)
    277 
    278 #define IXGBE_VF_GET_QUEUES_RESP_LEN	5
    279 
    280 #define IXGBE_API_VER_1_0	0
    281 #define IXGBE_API_VER_2_0	1	/* Solaris API.  Not supported. */
    282 #define IXGBE_API_VER_1_1	2
    283 #define IXGBE_API_VER_UNKNOWN	UINT16_MAX
    284 
    285 enum ixgbe_iov_mode {
    286 	IXGBE_64_VM,
    287 	IXGBE_32_VM,
    288 	IXGBE_NO_VM
    289 };
    290 #endif /* PCI_IOV */
    291 
    292 
    293 /*
    294  *****************************************************************************
    295  * vendor_info_array
    296  *
    297  * This array contains the list of Subvendor/Subdevice IDs on which the driver
    298  * should load.
    299  *
    300  *****************************************************************************
    301  */
    302 typedef struct _ixgbe_vendor_info_t {
    303 	unsigned int    vendor_id;
    304 	unsigned int    device_id;
    305 	unsigned int    subvendor_id;
    306 	unsigned int    subdevice_id;
    307 	unsigned int    index;
    308 } ixgbe_vendor_info_t;
    309 
    310 /* This is used to get SFP+ module data */
    311 struct ixgbe_i2c_req {
    312         u8 dev_addr;
    313         u8 offset;
    314         u8 len;
    315         u8 data[8];
    316 };
    317 
    318 
    319 struct ixgbe_tx_buf {
    320 	union ixgbe_adv_tx_desc	*eop;
    321 	struct mbuf	*m_head;
    322 	bus_dmamap_t	map;
    323 };
    324 
    325 struct ixgbe_rx_buf {
    326 	struct mbuf	*buf;
    327 	struct mbuf	*fmp;
    328 	bus_dmamap_t	pmap;
    329 	u_int		flags;
    330 #define IXGBE_RX_COPY	0x01
    331 	uint64_t	addr;
    332 };
    333 
    334 /*
    335  * Bus dma allocation structure used by ixgbe_dma_malloc and ixgbe_dma_free.
    336  */
    337 struct ixgbe_dma_alloc {
    338 	bus_addr_t		dma_paddr;
    339 	void			*dma_vaddr;
    340 	ixgbe_dma_tag_t		*dma_tag;
    341 	bus_dmamap_t		dma_map;
    342 	bus_dma_segment_t	dma_seg;
    343 	bus_size_t		dma_size;
    344 };
    345 
    346 struct ixgbe_mc_addr {
    347 	u8 addr[IXGBE_ETH_LENGTH_OF_ADDRESS];
    348 	u32 vmdq;
    349 };
    350 
    351 /*
    352 ** Driver queue struct: this is the interrupt container
    353 **  for the associated tx and rx ring.
    354 */
    355 struct ix_queue {
    356 	struct adapter		*adapter;
    357 	u32			msix;           /* This queue's MSIX vector */
    358 	u32			eims;           /* This queue's EIMS bit */
    359 	u32			eitr_setting;
    360 	u32			me;
    361 	struct resource		*res;
    362 	void			*tag;
    363 	int			busy;
    364 	struct tx_ring		*txr;
    365 	struct rx_ring		*rxr;
    366 	void			*que_si;
    367 	struct evcnt		irqs;
    368 	char			namebuf[32];
    369 	char			evnamebuf[32];
    370 };
    371 
    372 /*
    373  * The transmit ring, one per queue
    374  */
    375 struct tx_ring {
    376         struct adapter		*adapter;
    377 	kmutex_t		tx_mtx;
    378 	u32			me;
    379 	u32			tail;
    380 	int			busy;
    381 	union ixgbe_adv_tx_desc	*tx_base;
    382 	struct ixgbe_tx_buf	*tx_buffers;
    383 	struct ixgbe_dma_alloc	txdma;
    384 	volatile u16		tx_avail;
    385 	u16			next_avail_desc;
    386 	u16			next_to_clean;
    387 	u16			num_desc;
    388 	u32			txd_cmd;
    389 	ixgbe_dma_tag_t		*txtag;
    390 	char			mtx_name[16];
    391 #ifndef IXGBE_LEGACY_TX
    392 	pcq_t			*txr_interq;
    393 	void			*txr_si;
    394 #endif
    395 #ifdef IXGBE_FDIR
    396 	u16			atr_sample;
    397 	u16			atr_count;
    398 #endif
    399 	u32			bytes;  /* used for AIM */
    400 	u32			packets;
    401 	/* Soft Stats */
    402 	struct evcnt	   	tso_tx;
    403 	struct evcnt	   	no_tx_map_avail;
    404 	struct evcnt		no_desc_avail;
    405 	struct evcnt		total_packets;
    406 	struct evcnt		pcq_drops;
    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_copies;
    439 	struct evcnt		rx_packets;
    440 	struct evcnt 		rx_bytes;
    441 	struct evcnt 		rx_discarded;
    442 	struct evcnt 		no_jmbuf;
    443 	u64 			rsc_num;
    444 #ifdef IXGBE_FDIR
    445 	u64			flm;
    446 #endif
    447 };
    448 
    449 #ifdef PCI_IOV
    450 #define IXGBE_VF_CTS		(1 << 0) /* VF is clear to send. */
    451 #define IXGBE_VF_CAP_MAC	(1 << 1) /* VF is permitted to change MAC. */
    452 #define IXGBE_VF_CAP_VLAN	(1 << 2) /* VF is permitted to join vlans. */
    453 #define IXGBE_VF_ACTIVE		(1 << 3) /* VF is active. */
    454 
    455 #define IXGBE_MAX_VF_MC 30  /* Max number of multicast entries */
    456 
    457 struct ixgbe_vf {
    458 	u_int		pool;
    459 	u_int		rar_index;
    460 	u_int		max_frame_size;
    461 	uint32_t	flags;
    462 	uint8_t		ether_addr[ETHER_ADDR_LEN];
    463 	uint16_t	mc_hash[IXGBE_MAX_VF_MC];
    464 	uint16_t	num_mc_hashes;
    465 	uint16_t	default_vlan;
    466 	uint16_t	vlan_tag;
    467 	uint16_t	api_ver;
    468 };
    469 #endif /* PCI_IOV */
    470 
    471 /* Our adapter structure */
    472 struct adapter {
    473 	struct ixgbe_hw		hw;
    474 	struct ixgbe_osdep	osdep;
    475 
    476 	device_t		dev;
    477 	struct ifnet		*ifp;
    478 
    479 	struct resource		*pci_mem;
    480 	struct resource		*msix_mem;
    481 
    482 	/*
    483 	 * Interrupt resources: this set is
    484 	 * either used for legacy, or for Link
    485 	 * when doing MSIX
    486 	 */
    487 	void			*tag;
    488 	struct resource 	*res;
    489 
    490 	struct ifmedia		media;
    491 	callout_t		timer;
    492 	int			msix;
    493 	int			if_flags;
    494 
    495 	kmutex_t		core_mtx;
    496 
    497 	unsigned int		num_queues;
    498 
    499 	/*
    500 	** Shadow VFTA table, this is needed because
    501 	** the real vlan filter table gets cleared during
    502 	** a soft reset and the driver needs to be able
    503 	** to repopulate it.
    504 	*/
    505 	u32			shadow_vfta[IXGBE_VFTA_SIZE];
    506 
    507 	/* Info about the interface */
    508 	u32			optics;
    509 	u32			fc; /* local flow ctrl setting */
    510 	int			advertise;  /* link speeds */
    511 	bool			enable_aim; /* adaptive interrupt moderation */
    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   		mbuf_defrag_failed;
    582 	struct evcnt	   	mbuf_header_failed;
    583 	struct evcnt	   	mbuf_packet_failed;
    584 	struct evcnt	   	efbig_tx_dma_setup;
    585 	struct evcnt	   	efbig2_tx_dma_setup;
    586 	struct evcnt	   	einval_tx_dma_setup;
    587 	struct evcnt	   	other_tx_dma_setup;
    588 	struct evcnt	   	eagain_tx_dma_setup;
    589 	struct evcnt	   	enomem_tx_dma_setup;
    590 	struct evcnt	   	tso_err;
    591 	struct evcnt	   	watchdog_events;
    592 	struct evcnt		link_irq;
    593 	struct evcnt		handleq;
    594 	struct evcnt		req;
    595 
    596 	union {
    597 		struct ixgbe_hw_stats pf;
    598 		struct ixgbevf_hw_stats	vf;
    599 	} stats;
    600 #if __FreeBSD_version >= 1100036
    601 	/* counter(9) stats */
    602 	u64			ipackets;
    603 	u64			ierrors;
    604 	u64			opackets;
    605 	u64			oerrors;
    606 	u64			ibytes;
    607 	u64			obytes;
    608 	u64			imcasts;
    609 	u64			omcasts;
    610 	u64			iqdrops;
    611 	u64			noproto;
    612 #endif
    613 	struct sysctllog	*sysctllog;
    614 	const struct sysctlnode *sysctltop;
    615 	ixgbe_extmem_head_t jcl_head;
    616 };
    617 
    618 
    619 /* Precision Time Sync (IEEE 1588) defines */
    620 #define ETHERTYPE_IEEE1588      0x88F7
    621 #define PICOSECS_PER_TICK       20833
    622 #define TSYNC_UDP_PORT          319 /* UDP port for the protocol */
    623 #define IXGBE_ADVTXD_TSTAMP	0x00080000
    624 
    625 
    626 #define IXGBE_CORE_LOCK_INIT(_sc, _name) \
    627         mutex_init(&(_sc)->core_mtx, MUTEX_DEFAULT, IPL_SOFTNET)
    628 #define IXGBE_CORE_LOCK_DESTROY(_sc)      mutex_destroy(&(_sc)->core_mtx)
    629 #define IXGBE_TX_LOCK_DESTROY(_sc)        mutex_destroy(&(_sc)->tx_mtx)
    630 #define IXGBE_RX_LOCK_DESTROY(_sc)        mutex_destroy(&(_sc)->rx_mtx)
    631 #define IXGBE_CORE_LOCK(_sc)              mutex_enter(&(_sc)->core_mtx)
    632 #define IXGBE_TX_LOCK(_sc)                mutex_enter(&(_sc)->tx_mtx)
    633 #define IXGBE_TX_TRYLOCK(_sc)             mutex_tryenter(&(_sc)->tx_mtx)
    634 #define IXGBE_RX_LOCK(_sc)                mutex_enter(&(_sc)->rx_mtx)
    635 #define IXGBE_CORE_UNLOCK(_sc)            mutex_exit(&(_sc)->core_mtx)
    636 #define IXGBE_TX_UNLOCK(_sc)              mutex_exit(&(_sc)->tx_mtx)
    637 #define IXGBE_RX_UNLOCK(_sc)              mutex_exit(&(_sc)->rx_mtx)
    638 #define IXGBE_CORE_LOCK_ASSERT(_sc)       KASSERT(mutex_owned(&(_sc)->core_mtx))
    639 #define IXGBE_TX_LOCK_ASSERT(_sc)         KASSERT(mutex_owned(&(_sc)->tx_mtx))
    640 
    641 /* Stats macros */
    642 #if __FreeBSD_version >= 1100036
    643 #define IXGBE_SET_IPACKETS(sc, count)    (sc)->ipackets = (count)
    644 #define IXGBE_SET_IERRORS(sc, count)     (sc)->ierrors = (count)
    645 #define IXGBE_SET_OPACKETS(sc, count)    (sc)->opackets = (count)
    646 #define IXGBE_SET_OERRORS(sc, count)     (sc)->oerrors = (count)
    647 #define IXGBE_SET_COLLISIONS(sc, count)
    648 #define IXGBE_SET_IBYTES(sc, count)      (sc)->ibytes = (count)
    649 #define IXGBE_SET_OBYTES(sc, count)      (sc)->obytes = (count)
    650 #define IXGBE_SET_IMCASTS(sc, count)     (sc)->imcasts = (count)
    651 #define IXGBE_SET_OMCASTS(sc, count)     (sc)->omcasts = (count)
    652 #define IXGBE_SET_IQDROPS(sc, count)     (sc)->iqdrops = (count)
    653 #else
    654 #define IXGBE_SET_IPACKETS(sc, count)    (sc)->ifp->if_ipackets = (count)
    655 #define IXGBE_SET_IERRORS(sc, count)     (sc)->ifp->if_ierrors = (count)
    656 #define IXGBE_SET_OPACKETS(sc, count)    (sc)->ifp->if_opackets = (count)
    657 #define IXGBE_SET_OERRORS(sc, count)     (sc)->ifp->if_oerrors = (count)
    658 #define IXGBE_SET_COLLISIONS(sc, count)  (sc)->ifp->if_collisions = (count)
    659 #define IXGBE_SET_IBYTES(sc, count)      (sc)->ifp->if_ibytes = (count)
    660 #define IXGBE_SET_OBYTES(sc, count)      (sc)->ifp->if_obytes = (count)
    661 #define IXGBE_SET_IMCASTS(sc, count)     (sc)->ifp->if_imcasts = (count)
    662 #define IXGBE_SET_OMCASTS(sc, count)     (sc)->ifp->if_omcasts = (count)
    663 #define IXGBE_SET_IQDROPS(sc, count)     (sc)->ifp->if_iqdrops = (count)
    664 #endif
    665 
    666 /* External PHY register addresses */
    667 #define IXGBE_PHY_CURRENT_TEMP		0xC820
    668 #define IXGBE_PHY_OVERTEMP_STATUS	0xC830
    669 
    670 /* Sysctl help messages; displayed with sysctl -d */
    671 #define IXGBE_SYSCTL_DESC_ADV_SPEED \
    672 	"\nControl advertised link speed using these flags:\n" \
    673 	"\t0x1 - advertise 100M\n" \
    674 	"\t0x2 - advertise 1G\n" \
    675 	"\t0x4 - advertise 10G\n\n" \
    676 	"\t100M is only supported on certain 10GBaseT adapters."
    677 
    678 #define IXGBE_SYSCTL_DESC_SET_FC \
    679 	"\nSet flow control mode using these values:\n" \
    680 	"\t0 - off\n" \
    681 	"\t1 - rx pause\n" \
    682 	"\t2 - tx pause\n" \
    683 	"\t3 - tx and rx pause"
    684 
    685 static inline bool
    686 ixgbe_is_sfp(struct ixgbe_hw *hw)
    687 {
    688 	switch (hw->phy.type) {
    689 	case ixgbe_phy_sfp_avago:
    690 	case ixgbe_phy_sfp_ftl:
    691 	case ixgbe_phy_sfp_intel:
    692 	case ixgbe_phy_sfp_unknown:
    693 	case ixgbe_phy_sfp_passive_tyco:
    694 	case ixgbe_phy_sfp_passive_unknown:
    695 	case ixgbe_phy_sfp_unsupported:
    696 	case ixgbe_phy_qsfp_passive_unknown:
    697 	case ixgbe_phy_qsfp_active_unknown:
    698 	case ixgbe_phy_qsfp_intel:
    699 	case ixgbe_phy_qsfp_unknown:
    700 		return TRUE;
    701 	default:
    702 		break;
    703 	}
    704 
    705 	if (hw->phy.sfp_type == ixgbe_sfp_type_not_present)
    706 		return TRUE;
    707 
    708 	return FALSE;
    709 }
    710 
    711 /* Workaround to make 8.0 buildable */
    712 #if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504
    713 static __inline int
    714 drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br)
    715 {
    716 #ifdef ALTQ
    717         if (ALTQ_IS_ENABLED(&ifp->if_snd))
    718                 return (1);
    719 #endif
    720         return (!buf_ring_empty(br));
    721 }
    722 #endif
    723 
    724 /*
    725 ** Find the number of unrefreshed RX descriptors
    726 */
    727 static inline u16
    728 ixgbe_rx_unrefreshed(struct rx_ring *rxr)
    729 {
    730 	if (rxr->next_to_check > rxr->next_to_refresh)
    731 		return (rxr->next_to_check - rxr->next_to_refresh - 1);
    732 	else
    733 		return ((rxr->num_desc + rxr->next_to_check) -
    734 		    rxr->next_to_refresh - 1);
    735 }
    736 
    737 /*
    738 ** This checks for a zero mac addr, something that will be likely
    739 ** unless the Admin on the Host has created one.
    740 */
    741 static inline bool
    742 ixv_check_ether_addr(u8 *addr)
    743 {
    744 	bool status = TRUE;
    745 
    746 	if ((addr[0] == 0 && addr[1]== 0 && addr[2] == 0 &&
    747 	    addr[3] == 0 && addr[4]== 0 && addr[5] == 0))
    748 		status = FALSE;
    749 	return (status);
    750 }
    751 
    752 /* Shared Prototypes */
    753 
    754 void	ixgbe_start(struct ifnet *);
    755 void	ixgbe_start_locked(struct tx_ring *, struct ifnet *);
    756 #ifndef IXGBE_LEGACY_TX
    757 int	ixgbe_mq_start(struct ifnet *, struct mbuf *);
    758 int	ixgbe_mq_start_locked(struct ifnet *, struct tx_ring *);
    759 void	ixgbe_deferred_mq_start(void *);
    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