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linux/drivers/net/vmxnet3/vmxnet3_defs.h
Shreyas Bhatewara 115924b6bd net: Getting rid of the x86 dependency to built vmxnet3 
This patch removes config dependency on x86 to build vmxnet3 driver. Thus
the driver can be built on big endian architectures now. Although vmxnet3
is not supported on VMs other than x86 architecture, all this code goes in
to ensure correctness. If the code is not dependent on x86, it should not
assume little endian architecture in any of its operations.

Signed-off-by: Shreyas Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-17 04:08:50 -08:00

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/*
* Linux driver for VMware's vmxnet3 ethernet NIC.
*
* Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; version 2 of the License and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
*
*/
#ifndef _VMXNET3_DEFS_H_
#define _VMXNET3_DEFS_H_
#include "upt1_defs.h"
/* all registers are 32 bit wide */
/* BAR 1 */
enum {
VMXNET3_REG_VRRS = 0x0, /* Vmxnet3 Revision Report Selection */
VMXNET3_REG_UVRS = 0x8, /* UPT Version Report Selection */
VMXNET3_REG_DSAL = 0x10, /* Driver Shared Address Low */
VMXNET3_REG_DSAH = 0x18, /* Driver Shared Address High */
VMXNET3_REG_CMD = 0x20, /* Command */
VMXNET3_REG_MACL = 0x28, /* MAC Address Low */
VMXNET3_REG_MACH = 0x30, /* MAC Address High */
VMXNET3_REG_ICR = 0x38, /* Interrupt Cause Register */
VMXNET3_REG_ECR = 0x40 /* Event Cause Register */
};
/* BAR 0 */
enum {
VMXNET3_REG_IMR = 0x0, /* Interrupt Mask Register */
VMXNET3_REG_TXPROD = 0x600, /* Tx Producer Index */
VMXNET3_REG_RXPROD = 0x800, /* Rx Producer Index for ring 1 */
VMXNET3_REG_RXPROD2 = 0xA00 /* Rx Producer Index for ring 2 */
};
#define VMXNET3_PT_REG_SIZE 4096 /* BAR 0 */
#define VMXNET3_VD_REG_SIZE 4096 /* BAR 1 */
#define VMXNET3_REG_ALIGN 8 /* All registers are 8-byte aligned. */
#define VMXNET3_REG_ALIGN_MASK 0x7
/* I/O Mapped access to registers */
#define VMXNET3_IO_TYPE_PT 0
#define VMXNET3_IO_TYPE_VD 1
#define VMXNET3_IO_ADDR(type, reg) (((type) << 24) | ((reg) & 0xFFFFFF))
#define VMXNET3_IO_TYPE(addr) ((addr) >> 24)
#define VMXNET3_IO_REG(addr) ((addr) & 0xFFFFFF)
enum {
VMXNET3_CMD_FIRST_SET = 0xCAFE0000,
VMXNET3_CMD_ACTIVATE_DEV = VMXNET3_CMD_FIRST_SET,
VMXNET3_CMD_QUIESCE_DEV,
VMXNET3_CMD_RESET_DEV,
VMXNET3_CMD_UPDATE_RX_MODE,
VMXNET3_CMD_UPDATE_MAC_FILTERS,
VMXNET3_CMD_UPDATE_VLAN_FILTERS,
VMXNET3_CMD_UPDATE_RSSIDT,
VMXNET3_CMD_UPDATE_IML,
VMXNET3_CMD_UPDATE_PMCFG,
VMXNET3_CMD_UPDATE_FEATURE,
VMXNET3_CMD_LOAD_PLUGIN,
VMXNET3_CMD_FIRST_GET = 0xF00D0000,
VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
VMXNET3_CMD_GET_STATS,
VMXNET3_CMD_GET_LINK,
VMXNET3_CMD_GET_PERM_MAC_LO,
VMXNET3_CMD_GET_PERM_MAC_HI,
VMXNET3_CMD_GET_DID_LO,
VMXNET3_CMD_GET_DID_HI,
VMXNET3_CMD_GET_DEV_EXTRA_INFO,
VMXNET3_CMD_GET_CONF_INTR
};
/*
* Little Endian layout of bitfields -
* Byte 0 : 7.....len.....0
* Byte 1 : rsvd gen 13.len.8
* Byte 2 : 5.msscof.0 ext1 dtype
* Byte 3 : 13...msscof...6
*
* Big Endian layout of bitfields -
* Byte 0: 13...msscof...6
* Byte 1 : 5.msscof.0 ext1 dtype
* Byte 2 : rsvd gen 13.len.8
* Byte 3 : 7.....len.....0
*
* Thus, le32_to_cpu on the dword will allow the big endian driver to read
* the bit fields correctly. And cpu_to_le32 will convert bitfields
* bit fields written by big endian driver to format required by device.
*/
struct Vmxnet3_TxDesc {
__le64 addr;
#ifdef __BIG_ENDIAN_BITFIELD
u32 msscof:14; /* MSS, checksum offset, flags */
u32 ext1:1;
u32 dtype:1; /* descriptor type */
u32 rsvd:1;
u32 gen:1; /* generation bit */
u32 len:14;
#else
u32 len:14;
u32 gen:1; /* generation bit */
u32 rsvd:1;
u32 dtype:1; /* descriptor type */
u32 ext1:1;
u32 msscof:14; /* MSS, checksum offset, flags */
#endif /* __BIG_ENDIAN_BITFIELD */
#ifdef __BIG_ENDIAN_BITFIELD
u32 tci:16; /* Tag to Insert */
u32 ti:1; /* VLAN Tag Insertion */
u32 ext2:1;
u32 cq:1; /* completion request */
u32 eop:1; /* End Of Packet */
u32 om:2; /* offload mode */
u32 hlen:10; /* header len */
#else
u32 hlen:10; /* header len */
u32 om:2; /* offload mode */
u32 eop:1; /* End Of Packet */
u32 cq:1; /* completion request */
u32 ext2:1;
u32 ti:1; /* VLAN Tag Insertion */
u32 tci:16; /* Tag to Insert */
#endif /* __BIG_ENDIAN_BITFIELD */
};
/* TxDesc.OM values */
#define VMXNET3_OM_NONE 0
#define VMXNET3_OM_CSUM 2
#define VMXNET3_OM_TSO 3
/* fields in TxDesc we access w/o using bit fields */
#define VMXNET3_TXD_EOP_SHIFT 12
#define VMXNET3_TXD_CQ_SHIFT 13
#define VMXNET3_TXD_GEN_SHIFT 14
#define VMXNET3_TXD_EOP_DWORD_SHIFT 3
#define VMXNET3_TXD_GEN_DWORD_SHIFT 2
#define VMXNET3_TXD_CQ (1 << VMXNET3_TXD_CQ_SHIFT)
#define VMXNET3_TXD_EOP (1 << VMXNET3_TXD_EOP_SHIFT)
#define VMXNET3_TXD_GEN (1 << VMXNET3_TXD_GEN_SHIFT)
#define VMXNET3_HDR_COPY_SIZE 128
struct Vmxnet3_TxDataDesc {
u8 data[VMXNET3_HDR_COPY_SIZE];
};
#define VMXNET3_TCD_GEN_SHIFT 31
#define VMXNET3_TCD_GEN_SIZE 1
#define VMXNET3_TCD_TXIDX_SHIFT 0
#define VMXNET3_TCD_TXIDX_SIZE 12
#define VMXNET3_TCD_GEN_DWORD_SHIFT 3
struct Vmxnet3_TxCompDesc {
u32 txdIdx:12; /* Index of the EOP TxDesc */
u32 ext1:20;
__le32 ext2;
__le32 ext3;
u32 rsvd:24;
u32 type:7; /* completion type */
u32 gen:1; /* generation bit */
};
struct Vmxnet3_RxDesc {
__le64 addr;
#ifdef __BIG_ENDIAN_BITFIELD
u32 gen:1; /* Generation bit */
u32 rsvd:15;
u32 dtype:1; /* Descriptor type */
u32 btype:1; /* Buffer Type */
u32 len:14;
#else
u32 len:14;
u32 btype:1; /* Buffer Type */
u32 dtype:1; /* Descriptor type */
u32 rsvd:15;
u32 gen:1; /* Generation bit */
#endif
u32 ext1;
};
/* values of RXD.BTYPE */
#define VMXNET3_RXD_BTYPE_HEAD 0 /* head only */
#define VMXNET3_RXD_BTYPE_BODY 1 /* body only */
/* fields in RxDesc we access w/o using bit fields */
#define VMXNET3_RXD_BTYPE_SHIFT 14
#define VMXNET3_RXD_GEN_SHIFT 31
struct Vmxnet3_RxCompDesc {
#ifdef __BIG_ENDIAN_BITFIELD
u32 ext2:1;
u32 cnc:1; /* Checksum Not Calculated */
u32 rssType:4; /* RSS hash type used */
u32 rqID:10; /* rx queue/ring ID */
u32 sop:1; /* Start of Packet */
u32 eop:1; /* End of Packet */
u32 ext1:2;
u32 rxdIdx:12; /* Index of the RxDesc */
#else
u32 rxdIdx:12; /* Index of the RxDesc */
u32 ext1:2;
u32 eop:1; /* End of Packet */
u32 sop:1; /* Start of Packet */
u32 rqID:10; /* rx queue/ring ID */
u32 rssType:4; /* RSS hash type used */
u32 cnc:1; /* Checksum Not Calculated */
u32 ext2:1;
#endif /* __BIG_ENDIAN_BITFIELD */
__le32 rssHash; /* RSS hash value */
#ifdef __BIG_ENDIAN_BITFIELD
u32 tci:16; /* Tag stripped */
u32 ts:1; /* Tag is stripped */
u32 err:1; /* Error */
u32 len:14; /* data length */
#else
u32 len:14; /* data length */
u32 err:1; /* Error */
u32 ts:1; /* Tag is stripped */
u32 tci:16; /* Tag stripped */
#endif /* __BIG_ENDIAN_BITFIELD */
#ifdef __BIG_ENDIAN_BITFIELD
u32 gen:1; /* generation bit */
u32 type:7; /* completion type */
u32 fcs:1; /* Frame CRC correct */
u32 frg:1; /* IP Fragment */
u32 v4:1; /* IPv4 */
u32 v6:1; /* IPv6 */
u32 ipc:1; /* IP Checksum Correct */
u32 tcp:1; /* TCP packet */
u32 udp:1; /* UDP packet */
u32 tuc:1; /* TCP/UDP Checksum Correct */
u32 csum:16;
#else
u32 csum:16;
u32 tuc:1; /* TCP/UDP Checksum Correct */
u32 udp:1; /* UDP packet */
u32 tcp:1; /* TCP packet */
u32 ipc:1; /* IP Checksum Correct */
u32 v6:1; /* IPv6 */
u32 v4:1; /* IPv4 */
u32 frg:1; /* IP Fragment */
u32 fcs:1; /* Frame CRC correct */
u32 type:7; /* completion type */
u32 gen:1; /* generation bit */
#endif /* __BIG_ENDIAN_BITFIELD */
};
/* fields in RxCompDesc we access via Vmxnet3_GenericDesc.dword[3] */
#define VMXNET3_RCD_TUC_SHIFT 16
#define VMXNET3_RCD_IPC_SHIFT 19
/* fields in RxCompDesc we access via Vmxnet3_GenericDesc.qword[1] */
#define VMXNET3_RCD_TYPE_SHIFT 56
#define VMXNET3_RCD_GEN_SHIFT 63
/* csum OK for TCP/UDP pkts over IP */
#define VMXNET3_RCD_CSUM_OK (1 << VMXNET3_RCD_TUC_SHIFT | \
1 << VMXNET3_RCD_IPC_SHIFT)
#define VMXNET3_TXD_GEN_SIZE 1
#define VMXNET3_TXD_EOP_SIZE 1
/* value of RxCompDesc.rssType */
enum {
VMXNET3_RCD_RSS_TYPE_NONE = 0,
VMXNET3_RCD_RSS_TYPE_IPV4 = 1,
VMXNET3_RCD_RSS_TYPE_TCPIPV4 = 2,
VMXNET3_RCD_RSS_TYPE_IPV6 = 3,
VMXNET3_RCD_RSS_TYPE_TCPIPV6 = 4,
};
/* a union for accessing all cmd/completion descriptors */
union Vmxnet3_GenericDesc {
__le64 qword[2];
__le32 dword[4];
__le16 word[8];
struct Vmxnet3_TxDesc txd;
struct Vmxnet3_RxDesc rxd;
struct Vmxnet3_TxCompDesc tcd;
struct Vmxnet3_RxCompDesc rcd;
};
#define VMXNET3_INIT_GEN 1
/* Max size of a single tx buffer */
#define VMXNET3_MAX_TX_BUF_SIZE (1 << 14)
/* # of tx desc needed for a tx buffer size */
#define VMXNET3_TXD_NEEDED(size) (((size) + VMXNET3_MAX_TX_BUF_SIZE - 1) / \
VMXNET3_MAX_TX_BUF_SIZE)
/* max # of tx descs for a non-tso pkt */
#define VMXNET3_MAX_TXD_PER_PKT 16
/* Max size of a single rx buffer */
#define VMXNET3_MAX_RX_BUF_SIZE ((1 << 14) - 1)
/* Minimum size of a type 0 buffer */
#define VMXNET3_MIN_T0_BUF_SIZE 128
#define VMXNET3_MAX_CSUM_OFFSET 1024
/* Ring base address alignment */
#define VMXNET3_RING_BA_ALIGN 512
#define VMXNET3_RING_BA_MASK (VMXNET3_RING_BA_ALIGN - 1)
/* Ring size must be a multiple of 32 */
#define VMXNET3_RING_SIZE_ALIGN 32
#define VMXNET3_RING_SIZE_MASK (VMXNET3_RING_SIZE_ALIGN - 1)
/* Max ring size */
#define VMXNET3_TX_RING_MAX_SIZE 4096
#define VMXNET3_TC_RING_MAX_SIZE 4096
#define VMXNET3_RX_RING_MAX_SIZE 4096
#define VMXNET3_RC_RING_MAX_SIZE 8192
/* a list of reasons for queue stop */
enum {
VMXNET3_ERR_NOEOP = 0x80000000, /* cannot find the EOP desc of a pkt */
VMXNET3_ERR_TXD_REUSE = 0x80000001, /* reuse TxDesc before tx completion */
VMXNET3_ERR_BIG_PKT = 0x80000002, /* too many TxDesc for a pkt */
VMXNET3_ERR_DESC_NOT_SPT = 0x80000003, /* descriptor type not supported */
VMXNET3_ERR_SMALL_BUF = 0x80000004, /* type 0 buffer too small */
VMXNET3_ERR_STRESS = 0x80000005, /* stress option firing in vmkernel */
VMXNET3_ERR_SWITCH = 0x80000006, /* mode switch failure */
VMXNET3_ERR_TXD_INVALID = 0x80000007, /* invalid TxDesc */
};
/* completion descriptor types */
#define VMXNET3_CDTYPE_TXCOMP 0 /* Tx Completion Descriptor */
#define VMXNET3_CDTYPE_RXCOMP 3 /* Rx Completion Descriptor */
enum {
VMXNET3_GOS_BITS_UNK = 0, /* unknown */
VMXNET3_GOS_BITS_32 = 1,
VMXNET3_GOS_BITS_64 = 2,
};
#define VMXNET3_GOS_TYPE_LINUX 1
struct Vmxnet3_GOSInfo {
#ifdef __BIG_ENDIAN_BITFIELD
u32 gosMisc:10; /* other info about gos */
u32 gosVer:16; /* gos version */
u32 gosType:4; /* which guest */
u32 gosBits:2; /* 32-bit or 64-bit? */
#else
u32 gosBits:2; /* 32-bit or 64-bit? */
u32 gosType:4; /* which guest */
u32 gosVer:16; /* gos version */
u32 gosMisc:10; /* other info about gos */
#endif /* __BIG_ENDIAN_BITFIELD */
};
struct Vmxnet3_DriverInfo {
__le32 version;
struct Vmxnet3_GOSInfo gos;
__le32 vmxnet3RevSpt;
__le32 uptVerSpt;
};
#define VMXNET3_REV1_MAGIC 0xbabefee1
/*
* QueueDescPA must be 128 bytes aligned. It points to an array of
* Vmxnet3_TxQueueDesc followed by an array of Vmxnet3_RxQueueDesc.
* The number of Vmxnet3_TxQueueDesc/Vmxnet3_RxQueueDesc are specified by
* Vmxnet3_MiscConf.numTxQueues/numRxQueues, respectively.
*/
#define VMXNET3_QUEUE_DESC_ALIGN 128
struct Vmxnet3_MiscConf {
struct Vmxnet3_DriverInfo driverInfo;
__le64 uptFeatures;
__le64 ddPA; /* driver data PA */
__le64 queueDescPA; /* queue descriptor table PA */
__le32 ddLen; /* driver data len */
__le32 queueDescLen; /* queue desc. table len in bytes */
__le32 mtu;
__le16 maxNumRxSG;
u8 numTxQueues;
u8 numRxQueues;
__le32 reserved[4];
};
struct Vmxnet3_TxQueueConf {
__le64 txRingBasePA;
__le64 dataRingBasePA;
__le64 compRingBasePA;
__le64 ddPA; /* driver data */
__le64 reserved;
__le32 txRingSize; /* # of tx desc */
__le32 dataRingSize; /* # of data desc */
__le32 compRingSize; /* # of comp desc */
__le32 ddLen; /* size of driver data */
u8 intrIdx;
u8 _pad[7];
};
struct Vmxnet3_RxQueueConf {
__le64 rxRingBasePA[2];
__le64 compRingBasePA;
__le64 ddPA; /* driver data */
__le64 reserved;
__le32 rxRingSize[2]; /* # of rx desc */
__le32 compRingSize; /* # of rx comp desc */
__le32 ddLen; /* size of driver data */
u8 intrIdx;
u8 _pad[7];
};
enum vmxnet3_intr_mask_mode {
VMXNET3_IMM_AUTO = 0,
VMXNET3_IMM_ACTIVE = 1,
VMXNET3_IMM_LAZY = 2
};
enum vmxnet3_intr_type {
VMXNET3_IT_AUTO = 0,
VMXNET3_IT_INTX = 1,
VMXNET3_IT_MSI = 2,
VMXNET3_IT_MSIX = 3
};
#define VMXNET3_MAX_TX_QUEUES 8
#define VMXNET3_MAX_RX_QUEUES 16
/* addition 1 for events */
#define VMXNET3_MAX_INTRS 25
struct Vmxnet3_IntrConf {
bool autoMask;
u8 numIntrs; /* # of interrupts */
u8 eventIntrIdx;
u8 modLevels[VMXNET3_MAX_INTRS]; /* moderation level for
* each intr */
__le32 reserved[3];
};
/* one bit per VLAN ID, the size is in the units of u32 */
#define VMXNET3_VFT_SIZE (4096 / (sizeof(u32) * 8))
struct Vmxnet3_QueueStatus {
bool stopped;
u8 _pad[3];
__le32 error;
};
struct Vmxnet3_TxQueueCtrl {
__le32 txNumDeferred;
__le32 txThreshold;
__le64 reserved;
};
struct Vmxnet3_RxQueueCtrl {
bool updateRxProd;
u8 _pad[7];
__le64 reserved;
};
enum {
VMXNET3_RXM_UCAST = 0x01, /* unicast only */
VMXNET3_RXM_MCAST = 0x02, /* multicast passing the filters */
VMXNET3_RXM_BCAST = 0x04, /* broadcast only */
VMXNET3_RXM_ALL_MULTI = 0x08, /* all multicast */
VMXNET3_RXM_PROMISC = 0x10 /* promiscuous */
};
struct Vmxnet3_RxFilterConf {
__le32 rxMode; /* VMXNET3_RXM_xxx */
__le16 mfTableLen; /* size of the multicast filter table */
__le16 _pad1;
__le64 mfTablePA; /* PA of the multicast filters table */
__le32 vfTable[VMXNET3_VFT_SIZE]; /* vlan filter */
};
#define VMXNET3_PM_MAX_FILTERS 6
#define VMXNET3_PM_MAX_PATTERN_SIZE 128
#define VMXNET3_PM_MAX_MASK_SIZE (VMXNET3_PM_MAX_PATTERN_SIZE / 8)
#define VMXNET3_PM_WAKEUP_MAGIC 0x01 /* wake up on magic pkts */
#define VMXNET3_PM_WAKEUP_FILTER 0x02 /* wake up on pkts matching
* filters */
struct Vmxnet3_PM_PktFilter {
u8 maskSize;
u8 patternSize;
u8 mask[VMXNET3_PM_MAX_MASK_SIZE];
u8 pattern[VMXNET3_PM_MAX_PATTERN_SIZE];
u8 pad[6];
};
struct Vmxnet3_PMConf {
__le16 wakeUpEvents; /* VMXNET3_PM_WAKEUP_xxx */
u8 numFilters;
u8 pad[5];
struct Vmxnet3_PM_PktFilter filters[VMXNET3_PM_MAX_FILTERS];
};
struct Vmxnet3_VariableLenConfDesc {
__le32 confVer;
__le32 confLen;
__le64 confPA;
};
struct Vmxnet3_TxQueueDesc {
struct Vmxnet3_TxQueueCtrl ctrl;
struct Vmxnet3_TxQueueConf conf;
/* Driver read after a GET command */
struct Vmxnet3_QueueStatus status;
struct UPT1_TxStats stats;
u8 _pad[88]; /* 128 aligned */
};
struct Vmxnet3_RxQueueDesc {
struct Vmxnet3_RxQueueCtrl ctrl;
struct Vmxnet3_RxQueueConf conf;
/* Driver read after a GET commad */
struct Vmxnet3_QueueStatus status;
struct UPT1_RxStats stats;
u8 __pad[88]; /* 128 aligned */
};
struct Vmxnet3_DSDevRead {
/* read-only region for device, read by dev in response to a SET cmd */
struct Vmxnet3_MiscConf misc;
struct Vmxnet3_IntrConf intrConf;
struct Vmxnet3_RxFilterConf rxFilterConf;
struct Vmxnet3_VariableLenConfDesc rssConfDesc;
struct Vmxnet3_VariableLenConfDesc pmConfDesc;
struct Vmxnet3_VariableLenConfDesc pluginConfDesc;
};
/* All structures in DriverShared are padded to multiples of 8 bytes */
struct Vmxnet3_DriverShared {
__le32 magic;
/* make devRead start at 64bit boundaries */
__le32 pad;
struct Vmxnet3_DSDevRead devRead;
__le32 ecr;
__le32 reserved[5];
};
#define VMXNET3_ECR_RQERR (1 << 0)
#define VMXNET3_ECR_TQERR (1 << 1)
#define VMXNET3_ECR_LINK (1 << 2)
#define VMXNET3_ECR_DIC (1 << 3)
#define VMXNET3_ECR_DEBUG (1 << 4)
/* flip the gen bit of a ring */
#define VMXNET3_FLIP_RING_GEN(gen) ((gen) = (gen) ^ 0x1)
/* only use this if moving the idx won't affect the gen bit */
#define VMXNET3_INC_RING_IDX_ONLY(idx, ring_size) \
do {\
(idx)++;\
if (unlikely((idx) == (ring_size))) {\
(idx) = 0;\
} \
} while (0)
#define VMXNET3_SET_VFTABLE_ENTRY(vfTable, vid) \
(vfTable[vid >> 5] |= (1 << (vid & 31)))
#define VMXNET3_CLEAR_VFTABLE_ENTRY(vfTable, vid) \
(vfTable[vid >> 5] &= ~(1 << (vid & 31)))
#define VMXNET3_VFTABLE_ENTRY_IS_SET(vfTable, vid) \
((vfTable[vid >> 5] & (1 << (vid & 31))) != 0)
#define VMXNET3_MAX_MTU 9000
#define VMXNET3_MIN_MTU 60
#define VMXNET3_LINK_UP (10000 << 16 | 1) /* 10 Gbps, up */
#define VMXNET3_LINK_DOWN 0
#endif /* _VMXNET3_DEFS_H_ */
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