hw/net/vmxnet3.h

   1 /*
   2  * QEMU VMWARE VMXNET3 paravirtual NIC interface definitions
   3  *
   4  * Copyright (c) 2012 Ravello Systems LTD (http://ravellosystems.com)
   5  *
   6  * Developed by Daynix Computing LTD (http://www.daynix.com)
   7  *
   8  * Authors:
   9  * Dmitry Fleytman <dmitry@daynix.com>
  10  * Tamir Shomer <tamirs@daynix.com>
  11  * Yan Vugenfirer <yan@daynix.com>
  12  *
  13  * This work is licensed under the terms of the GNU GPL, version 2.
  14  * See the COPYING file in the top-level directory.
  15  *
  16  */
  17
  18 #ifndef QEMU_VMXNET3_H
  19 #define QEMU_VMXNET3_H
  20
  21 #define VMXNET3_DEVICE_MAX_TX_QUEUES 8
  22 #define VMXNET3_DEVICE_MAX_RX_QUEUES 8   /* Keep this value as a power of 2 */
  23
  24 /*
  25  * VMWARE headers we got from Linux kernel do not fully comply QEMU coding
  26  * standards in sense of types and defines used.
  27  * Since we didn't want to change VMWARE code, following set of typedefs
  28  * and defines needed to compile these headers with QEMU introduced.
  29  */
  30 #define u64     uint64_t
  31 #define u32     uint32_t
  32 #define u16     uint16_t
  33 #define u8      uint8_t
  34 #define __le16  uint16_t
  35 #define __le32  uint32_t
  36 #define __le64  uint64_t
  37
  38 #if defined(HOST_WORDS_BIGENDIAN)
  39 #define __BIG_ENDIAN_BITFIELD
  40 #else
  41 #endif
  42
  43 /*
  44  * Following is an interface definition for
  45  * VMXNET3 device as provided by VMWARE
  46  * See original copyright from Linux kernel v3.2.8
  47  * header file drivers/net/vmxnet3/vmxnet3_defs.h below.
  48  */
  49
  50 /*
  51  * Linux driver for VMware's vmxnet3 ethernet NIC.
  52  *
  53  * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
  54  *
  55  * This program is free software; you can redistribute it and/or modify it
  56  * under the terms of the GNU General Public License as published by the
  57  * Free Software Foundation; version 2 of the License and no later version.
  58  *
  59  * This program is distributed in the hope that it will be useful, but
  60  * WITHOUT ANY WARRANTY; without even the implied warranty of
  61  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  62  * NON INFRINGEMENT.  See the GNU General Public License for more
  63  * details.
  64  *
  65  * You should have received a copy of the GNU General Public License
  66  * along with this program; if not, write to the Free Software
  67  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  68  *
  69  * The full GNU General Public License is included in this distribution in
  70  * the file called "COPYING".
  71  *
  72  * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
  73  *
  74  */
  75
  76 struct UPT1_TxStats {
  77     u64            TSOPktsTxOK;  /* TSO pkts post-segmentation */
  78     u64            TSOBytesTxOK;
  79     u64            ucastPktsTxOK;
  80     u64            ucastBytesTxOK;
  81     u64            mcastPktsTxOK;
  82     u64            mcastBytesTxOK;
  83     u64            bcastPktsTxOK;
  84     u64            bcastBytesTxOK;
  85     u64            pktsTxError;
  86     u64            pktsTxDiscard;
  87 };
  88
  89 struct UPT1_RxStats {
  90     u64            LROPktsRxOK;    /* LRO pkts */
  91     u64            LROBytesRxOK;   /* bytes from LRO pkts */
  92     /* the following counters are for pkts from the wire, i.e., pre-LRO */
  93     u64            ucastPktsRxOK;
  94     u64            ucastBytesRxOK;
  95     u64            mcastPktsRxOK;
  96     u64            mcastBytesRxOK;
  97     u64            bcastPktsRxOK;
  98     u64            bcastBytesRxOK;
  99     u64            pktsRxOutOfBuf;
 100     u64            pktsRxError;
 101 };
 102
 103 /* interrupt moderation level */
 104 enum {
 105     UPT1_IML_NONE        = 0, /* no interrupt moderation */
 106     UPT1_IML_HIGHEST    = 7, /* least intr generated */
 107     UPT1_IML_ADAPTIVE    = 8, /* adpative intr moderation */
 108 };
 109 /* values for UPT1_RSSConf.hashFunc */
 110 enum {
 111     UPT1_RSS_HASH_TYPE_NONE      = 0x0,
 112     UPT1_RSS_HASH_TYPE_IPV4      = 0x01,
 113     UPT1_RSS_HASH_TYPE_TCP_IPV4  = 0x02,
 114     UPT1_RSS_HASH_TYPE_IPV6      = 0x04,
 115     UPT1_RSS_HASH_TYPE_TCP_IPV6  = 0x08,
 116 };
 117
 118 enum {
 119     UPT1_RSS_HASH_FUNC_NONE      = 0x0,
 120     UPT1_RSS_HASH_FUNC_TOEPLITZ  = 0x01,
 121 };
 122
 123 #define UPT1_RSS_MAX_KEY_SIZE        40
 124 #define UPT1_RSS_MAX_IND_TABLE_SIZE  128
 125
 126 struct UPT1_RSSConf {
 127     u16            hashType;
 128     u16            hashFunc;
 129     u16            hashKeySize;
 130     u16            indTableSize;
 131     u8            hashKey[UPT1_RSS_MAX_KEY_SIZE];
 132     u8            indTable[UPT1_RSS_MAX_IND_TABLE_SIZE];
 133 };
 134
 135 /* features */
 136 enum {
 137     UPT1_F_RXCSUM        = 0x0001, /* rx csum verification */
 138     UPT1_F_RSS           = 0x0002,
 139     UPT1_F_RXVLAN        = 0x0004, /* VLAN tag stripping */
 140     UPT1_F_LRO           = 0x0008,
 141 };
 142
 143 /* all registers are 32 bit wide */
 144 /* BAR 1 */
 145 enum {
 146     VMXNET3_REG_VRRS    = 0x0,    /* Vmxnet3 Revision Report Selection */
 147     VMXNET3_REG_UVRS    = 0x8,    /* UPT Version Report Selection */
 148     VMXNET3_REG_DSAL    = 0x10,    /* Driver Shared Address Low */
 149     VMXNET3_REG_DSAH    = 0x18,    /* Driver Shared Address High */
 150     VMXNET3_REG_CMD        = 0x20,    /* Command */
 151     VMXNET3_REG_MACL    = 0x28,    /* MAC Address Low */
 152     VMXNET3_REG_MACH    = 0x30,    /* MAC Address High */
 153     VMXNET3_REG_ICR        = 0x38,    /* Interrupt Cause Register */
 154     VMXNET3_REG_ECR        = 0x40    /* Event Cause Register */
 155 };
 156
 157 /* BAR 0 */
 158 enum {
 159     VMXNET3_REG_IMR        = 0x0,     /* Interrupt Mask Register */
 160     VMXNET3_REG_TXPROD    = 0x600, /* Tx Producer Index */
 161     VMXNET3_REG_RXPROD    = 0x800, /* Rx Producer Index for ring 1 */
 162     VMXNET3_REG_RXPROD2    = 0xA00     /* Rx Producer Index for ring 2 */
 163 };
 164
 165 #define VMXNET3_PT_REG_SIZE     4096    /* BAR 0 */
 166 #define VMXNET3_VD_REG_SIZE     4096    /* BAR 1 */
 167
 168 #define VMXNET3_REG_ALIGN       8    /* All registers are 8-byte aligned. */
 169 #define VMXNET3_REG_ALIGN_MASK  0x7
 170
 171 /* I/O Mapped access to registers */
 172 #define VMXNET3_IO_TYPE_PT              0
 173 #define VMXNET3_IO_TYPE_VD              1
 174 #define VMXNET3_IO_ADDR(type, reg)      (((type) << 24) | ((reg) & 0xFFFFFF))
 175 #define VMXNET3_IO_TYPE(addr)           ((addr) >> 24)
 176 #define VMXNET3_IO_REG(addr)            ((addr) & 0xFFFFFF)
 177
 178 enum {
 179     VMXNET3_CMD_FIRST_SET = 0xCAFE0000,
 180     VMXNET3_CMD_ACTIVATE_DEV = VMXNET3_CMD_FIRST_SET, /* 0xCAFE0000 */
 181     VMXNET3_CMD_QUIESCE_DEV,                          /* 0xCAFE0001 */
 182     VMXNET3_CMD_RESET_DEV,                            /* 0xCAFE0002 */
 183     VMXNET3_CMD_UPDATE_RX_MODE,                       /* 0xCAFE0003 */
 184     VMXNET3_CMD_UPDATE_MAC_FILTERS,                   /* 0xCAFE0004 */
 185     VMXNET3_CMD_UPDATE_VLAN_FILTERS,                  /* 0xCAFE0005 */
 186     VMXNET3_CMD_UPDATE_RSSIDT,                        /* 0xCAFE0006 */
 187     VMXNET3_CMD_UPDATE_IML,                           /* 0xCAFE0007 */
 188     VMXNET3_CMD_UPDATE_PMCFG,                         /* 0xCAFE0008 */
 189     VMXNET3_CMD_UPDATE_FEATURE,                       /* 0xCAFE0009 */
 190     VMXNET3_CMD_LOAD_PLUGIN,                          /* 0xCAFE000A */
 191
 192     VMXNET3_CMD_FIRST_GET = 0xF00D0000,
 193     VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET, /* 0xF00D0000 */
 194     VMXNET3_CMD_GET_STATS,                                /* 0xF00D0001 */
 195     VMXNET3_CMD_GET_LINK,                                 /* 0xF00D0002 */
 196     VMXNET3_CMD_GET_PERM_MAC_LO,                          /* 0xF00D0003 */
 197     VMXNET3_CMD_GET_PERM_MAC_HI,                          /* 0xF00D0004 */
 198     VMXNET3_CMD_GET_DID_LO,                               /* 0xF00D0005 */
 199     VMXNET3_CMD_GET_DID_HI,                               /* 0xF00D0006 */
 200     VMXNET3_CMD_GET_DEV_EXTRA_INFO,                       /* 0xF00D0007 */
 201     VMXNET3_CMD_GET_CONF_INTR,                            /* 0xF00D0008 */
 202     VMXNET3_CMD_GET_ADAPTIVE_RING_INFO                    /* 0xF00D0009 */
 203 };
 204
 205 /* Adaptive Ring Info Flags */
 206 #define VMXNET3_DISABLE_ADAPTIVE_RING 1
 207
 208 /*
 209  *    Little Endian layout of bitfields -
 210  *    Byte 0 :    7.....len.....0
 211  *    Byte 1 :    rsvd gen 13.len.8
 212  *    Byte 2 :     5.msscof.0 ext1  dtype
 213  *    Byte 3 :     13...msscof...6
 214  *
 215  *    Big Endian layout of bitfields -
 216  *    Byte 0:        13...msscof...6
 217  *    Byte 1 :     5.msscof.0 ext1  dtype
 218  *    Byte 2 :    rsvd gen 13.len.8
 219  *    Byte 3 :    7.....len.....0
 220  *
 221  *    Thus, le32_to_cpu on the dword will allow the big endian driver to read
 222  *    the bit fields correctly. And cpu_to_le32 will convert bitfields
 223  *    bit fields written by big endian driver to format required by device.
 224  */
 225
 226 struct Vmxnet3_TxDesc {
 227     __le64 addr;
 228
 229     union {
 230         struct {
 231 #ifdef __BIG_ENDIAN_BITFIELD
 232             u32 msscof:14;  /* MSS, checksum offset, flags */
 233             u32 ext1:1;
 234             u32 dtype:1;    /* descriptor type */
 235             u32 rsvd:1;
 236             u32 gen:1;      /* generation bit */
 237             u32 len:14;
 238 #else
 239             u32 len:14;
 240             u32 gen:1;      /* generation bit */
 241             u32 rsvd:1;
 242             u32 dtype:1;    /* descriptor type */
 243             u32 ext1:1;
 244             u32 msscof:14;  /* MSS, checksum offset, flags */
 245 #endif  /* __BIG_ENDIAN_BITFIELD */
 246         };
 247         u32 val1;
 248     };
 249
 250     union {
 251         struct {
 252 #ifdef __BIG_ENDIAN_BITFIELD
 253             u32 tci:16;     /* Tag to Insert */
 254             u32 ti:1;       /* VLAN Tag Insertion */
 255             u32 ext2:1;
 256             u32 cq:1;       /* completion request */
 257             u32 eop:1;      /* End Of Packet */
 258             u32 om:2;       /* offload mode */
 259             u32 hlen:10;    /* header len */
 260 #else
 261             u32 hlen:10;    /* header len */
 262             u32 om:2;       /* offload mode */
 263             u32 eop:1;      /* End Of Packet */
 264             u32 cq:1;       /* completion request */
 265             u32 ext2:1;
 266             u32 ti:1;       /* VLAN Tag Insertion */
 267             u32 tci:16;     /* Tag to Insert */
 268 #endif  /* __BIG_ENDIAN_BITFIELD */
 269         };
 270         u32 val2;
 271     };
 272 };
 273
 274 /* TxDesc.OM values */
 275 #define VMXNET3_OM_NONE        0
 276 #define VMXNET3_OM_CSUM        2
 277 #define VMXNET3_OM_TSO        3
 278
 279 /* fields in TxDesc we access w/o using bit fields */
 280 #define VMXNET3_TXD_EOP_SHIFT    12
 281 #define VMXNET3_TXD_CQ_SHIFT    13
 282 #define VMXNET3_TXD_GEN_SHIFT    14
 283 #define VMXNET3_TXD_EOP_DWORD_SHIFT 3
 284 #define VMXNET3_TXD_GEN_DWORD_SHIFT 2
 285
 286 #define VMXNET3_TXD_CQ        (1 << VMXNET3_TXD_CQ_SHIFT)
 287 #define VMXNET3_TXD_EOP        (1 << VMXNET3_TXD_EOP_SHIFT)
 288 #define VMXNET3_TXD_GEN        (1 << VMXNET3_TXD_GEN_SHIFT)
 289
 290 #define VMXNET3_HDR_COPY_SIZE   128
 291
 292
 293 struct Vmxnet3_TxDataDesc {
 294     u8        data[VMXNET3_HDR_COPY_SIZE];
 295 };
 296
 297 #define VMXNET3_TCD_GEN_SHIFT    31
 298 #define VMXNET3_TCD_GEN_SIZE    1
 299 #define VMXNET3_TCD_TXIDX_SHIFT    0
 300 #define VMXNET3_TCD_TXIDX_SIZE    12
 301 #define VMXNET3_TCD_GEN_DWORD_SHIFT    3
 302
 303 struct Vmxnet3_TxCompDesc {
 304     union {
 305         struct {
 306 #ifdef __BIG_ENDIAN_BITFIELD
 307             u32 ext1:20;
 308             u32 txdIdx:12;    /* Index of the EOP TxDesc */
 309 #else
 310             u32 txdIdx:12;    /* Index of the EOP TxDesc */
 311             u32 ext1:20;
 312 #endif
 313         };
 314         u32 val1;
 315     };
 316     __le32        ext2;
 317     __le32        ext3;
 318
 319     union {
 320         struct {
 321 #ifdef __BIG_ENDIAN_BITFIELD
 322             u32 gen:1;        /* generation bit */
 323             u32 type:7;       /* completion type */
 324             u32 rsvd:24;
 325 #else
 326             u32 rsvd:24;
 327             u32 type:7;       /* completion type */
 328             u32 gen:1;        /* generation bit */
 329 #endif
 330         };
 331         u32 val2;
 332     };
 333 };
 334
 335 struct Vmxnet3_RxDesc {
 336     __le64        addr;
 337     union {
 338         struct {
 339 #ifdef __BIG_ENDIAN_BITFIELD
 340             u32 gen:1;        /* Generation bit */
 341             u32 rsvd:15;
 342             u32 dtype:1;      /* Descriptor type */
 343             u32 btype:1;      /* Buffer Type */
 344             u32 len:14;
 345 #else
 346             u32 len:14;
 347             u32 btype:1;      /* Buffer Type */
 348             u32 dtype:1;      /* Descriptor type */
 349             u32 rsvd:15;
 350             u32 gen:1;        /* Generation bit */
 351 #endif
 352         };
 353         u32 val1;
 354     };
 355     u32        ext1;
 356 };
 357
 358 /* values of RXD.BTYPE */
 359 #define VMXNET3_RXD_BTYPE_HEAD   0    /* head only */
 360 #define VMXNET3_RXD_BTYPE_BODY   1    /* body only */
 361
 362 /* fields in RxDesc we access w/o using bit fields */
 363 #define VMXNET3_RXD_BTYPE_SHIFT  14
 364 #define VMXNET3_RXD_GEN_SHIFT    31
 365
 366 struct Vmxnet3_RxCompDesc {
 367     union {
 368         struct {
 369 #ifdef __BIG_ENDIAN_BITFIELD
 370             u32 ext2:1;
 371             u32 cnc:1;        /* Checksum Not Calculated */
 372             u32 rssType:4;    /* RSS hash type used */
 373             u32 rqID:10;      /* rx queue/ring ID */
 374             u32 sop:1;        /* Start of Packet */
 375             u32 eop:1;        /* End of Packet */
 376             u32 ext1:2;
 377             u32 rxdIdx:12;    /* Index of the RxDesc */
 378 #else
 379             u32 rxdIdx:12;    /* Index of the RxDesc */
 380             u32 ext1:2;
 381             u32 eop:1;        /* End of Packet */
 382             u32 sop:1;        /* Start of Packet */
 383             u32 rqID:10;      /* rx queue/ring ID */
 384             u32 rssType:4;    /* RSS hash type used */
 385             u32 cnc:1;        /* Checksum Not Calculated */
 386             u32 ext2:1;
 387 #endif  /* __BIG_ENDIAN_BITFIELD */
 388         };
 389         u32 val1;
 390     };
 391
 392     __le32        rssHash;      /* RSS hash value */
 393
 394     union {
 395         struct {
 396 #ifdef __BIG_ENDIAN_BITFIELD
 397             u32 tci:16;       /* Tag stripped */
 398             u32 ts:1;         /* Tag is stripped */
 399             u32 err:1;        /* Error */
 400             u32 len:14;       /* data length */
 401 #else
 402             u32 len:14;       /* data length */
 403             u32 err:1;        /* Error */
 404             u32 ts:1;         /* Tag is stripped */
 405             u32 tci:16;       /* Tag stripped */
 406 #endif  /* __BIG_ENDIAN_BITFIELD */
 407         };
 408         u32 val2;
 409     };
 410
 411     union {
 412         struct {
 413 #ifdef __BIG_ENDIAN_BITFIELD
 414             u32 gen:1;        /* generation bit */
 415             u32 type:7;       /* completion type */
 416             u32 fcs:1;        /* Frame CRC correct */
 417             u32 frg:1;        /* IP Fragment */
 418             u32 v4:1;         /* IPv4 */
 419             u32 v6:1;         /* IPv6 */
 420             u32 ipc:1;        /* IP Checksum Correct */
 421             u32 tcp:1;        /* TCP packet */
 422             u32 udp:1;        /* UDP packet */
 423             u32 tuc:1;        /* TCP/UDP Checksum Correct */
 424             u32 csum:16;
 425 #else
 426             u32 csum:16;
 427             u32 tuc:1;        /* TCP/UDP Checksum Correct */
 428             u32 udp:1;        /* UDP packet */
 429             u32 tcp:1;        /* TCP packet */
 430             u32 ipc:1;        /* IP Checksum Correct */
 431             u32 v6:1;         /* IPv6 */
 432             u32 v4:1;         /* IPv4 */
 433             u32 frg:1;        /* IP Fragment */
 434             u32 fcs:1;        /* Frame CRC correct */
 435             u32 type:7;       /* completion type */
 436             u32 gen:1;        /* generation bit */
 437 #endif  /* __BIG_ENDIAN_BITFIELD */
 438         };
 439         u32 val3;
 440     };
 441 };
 442
 443 /* fields in RxCompDesc we access via Vmxnet3_GenericDesc.dword[3] */
 444 #define VMXNET3_RCD_TUC_SHIFT    16
 445 #define VMXNET3_RCD_IPC_SHIFT    19
 446
 447 /* fields in RxCompDesc we access via Vmxnet3_GenericDesc.qword[1] */
 448 #define VMXNET3_RCD_TYPE_SHIFT    56
 449 #define VMXNET3_RCD_GEN_SHIFT    63
 450
 451 /* csum OK for TCP/UDP pkts over IP */
 452 #define VMXNET3_RCD_CSUM_OK (1 << VMXNET3_RCD_TUC_SHIFT | \
 453                      1 << VMXNET3_RCD_IPC_SHIFT)
 454 #define VMXNET3_TXD_GEN_SIZE 1
 455 #define VMXNET3_TXD_EOP_SIZE 1
 456
 457 /* value of RxCompDesc.rssType */
 458 enum {
 459     VMXNET3_RCD_RSS_TYPE_NONE     = 0,
 460     VMXNET3_RCD_RSS_TYPE_IPV4     = 1,
 461     VMXNET3_RCD_RSS_TYPE_TCPIPV4  = 2,
 462     VMXNET3_RCD_RSS_TYPE_IPV6     = 3,
 463     VMXNET3_RCD_RSS_TYPE_TCPIPV6  = 4,
 464 };
 465
 466
 467 /* a union for accessing all cmd/completion descriptors */
 468 union Vmxnet3_GenericDesc {
 469     __le64                qword[2];
 470     __le32                dword[4];
 471     __le16                word[8];
 472     struct Vmxnet3_TxDesc        txd;
 473     struct Vmxnet3_RxDesc        rxd;
 474     struct Vmxnet3_TxCompDesc    tcd;
 475     struct Vmxnet3_RxCompDesc    rcd;
 476 };
 477
 478 #define VMXNET3_INIT_GEN       1
 479
 480 /* Max size of a single tx buffer */
 481 #define VMXNET3_MAX_TX_BUF_SIZE  (1 << 14)
 482
 483 /* # of tx desc needed for a tx buffer size */
 484 #define VMXNET3_TXD_NEEDED(size) (((size) + VMXNET3_MAX_TX_BUF_SIZE - 1) / \
 485                     VMXNET3_MAX_TX_BUF_SIZE)
 486
 487 /* max # of tx descs for a non-tso pkt */
 488 #define VMXNET3_MAX_TXD_PER_PKT 16
 489
 490 /* Max size of a single rx buffer */
 491 #define VMXNET3_MAX_RX_BUF_SIZE  ((1 << 14) - 1)
 492 /* Minimum size of a type 0 buffer */
 493 #define VMXNET3_MIN_T0_BUF_SIZE  128
 494 #define VMXNET3_MAX_CSUM_OFFSET  1024
 495
 496 /* Ring base address alignment */
 497 #define VMXNET3_RING_BA_ALIGN   512
 498 #define VMXNET3_RING_BA_MASK    (VMXNET3_RING_BA_ALIGN - 1)
 499
 500 /* Ring size must be a multiple of 32 */
 501 #define VMXNET3_RING_SIZE_ALIGN 32
 502 #define VMXNET3_RING_SIZE_MASK  (VMXNET3_RING_SIZE_ALIGN - 1)
 503
 504 /* Max ring size */
 505 #define VMXNET3_TX_RING_MAX_SIZE   4096
 506 #define VMXNET3_TC_RING_MAX_SIZE   4096
 507 #define VMXNET3_RX_RING_MAX_SIZE   4096
 508 #define VMXNET3_RC_RING_MAX_SIZE   8192
 509
 510 /* a list of reasons for queue stop */
 511
 512 enum {
 513  VMXNET3_ERR_NOEOP        = 0x80000000, /* cannot find the EOP desc of a pkt */
 514  VMXNET3_ERR_TXD_REUSE    = 0x80000001, /* reuse TxDesc before tx completion */
 515  VMXNET3_ERR_BIG_PKT      = 0x80000002, /* too many TxDesc for a pkt */
 516  VMXNET3_ERR_DESC_NOT_SPT = 0x80000003, /* descriptor type not supported */
 517  VMXNET3_ERR_SMALL_BUF    = 0x80000004, /* type 0 buffer too small */
 518  VMXNET3_ERR_STRESS       = 0x80000005, /* stress option firing in vmkernel */
 519  VMXNET3_ERR_SWITCH       = 0x80000006, /* mode switch failure */
 520  VMXNET3_ERR_TXD_INVALID  = 0x80000007, /* invalid TxDesc */
 521 };
 522
 523 /* completion descriptor types */
 524 #define VMXNET3_CDTYPE_TXCOMP      0    /* Tx Completion Descriptor */
 525 #define VMXNET3_CDTYPE_RXCOMP      3    /* Rx Completion Descriptor */
 526
 527 enum {
 528     VMXNET3_GOS_BITS_UNK    = 0,   /* unknown */
 529     VMXNET3_GOS_BITS_32     = 1,
 530     VMXNET3_GOS_BITS_64     = 2,
 531 };
 532
 533 #define VMXNET3_GOS_TYPE_UNK        0 /* unknown */
 534 #define VMXNET3_GOS_TYPE_LINUX      1
 535 #define VMXNET3_GOS_TYPE_WIN        2
 536 #define VMXNET3_GOS_TYPE_SOLARIS    3
 537 #define VMXNET3_GOS_TYPE_FREEBSD    4
 538 #define VMXNET3_GOS_TYPE_PXE        5
 539
 540 struct Vmxnet3_GOSInfo {
 541 #ifdef __BIG_ENDIAN_BITFIELD
 542     u32        gosMisc:10;    /* other info about gos */
 543     u32        gosVer:16;     /* gos version */
 544     u32        gosType:4;     /* which guest */
 545     u32        gosBits:2;    /* 32-bit or 64-bit? */
 546 #else
 547     u32        gosBits:2;     /* 32-bit or 64-bit? */
 548     u32        gosType:4;     /* which guest */
 549     u32        gosVer:16;     /* gos version */
 550     u32        gosMisc:10;    /* other info about gos */
 551 #endif  /* __BIG_ENDIAN_BITFIELD */
 552 };
 553
 554 struct Vmxnet3_DriverInfo {
 555     __le32                version;
 556     struct Vmxnet3_GOSInfo        gos;
 557     __le32                vmxnet3RevSpt;
 558     __le32                uptVerSpt;
 559 };
 560
 561
 562 #define VMXNET3_REV1_MAGIC  0xbabefee1
 563
 564 /*
 565  * QueueDescPA must be 128 bytes aligned. It points to an array of
 566  * Vmxnet3_TxQueueDesc followed by an array of Vmxnet3_RxQueueDesc.
 567  * The number of Vmxnet3_TxQueueDesc/Vmxnet3_RxQueueDesc are specified by
 568  * Vmxnet3_MiscConf.numTxQueues/numRxQueues, respectively.
 569  */
 570 #define VMXNET3_QUEUE_DESC_ALIGN  128
 571
 572
 573 struct Vmxnet3_MiscConf {
 574     struct Vmxnet3_DriverInfo driverInfo;
 575     __le64        uptFeatures;
 576     __le64        ddPA;         /* driver data PA */
 577     __le64        queueDescPA;  /* queue descriptor table PA */
 578     __le32        ddLen;        /* driver data len */
 579     __le32        queueDescLen; /* queue desc. table len in bytes */
 580     __le32        mtu;
 581     __le16        maxNumRxSG;
 582     u8        numTxQueues;
 583     u8        numRxQueues;
 584     __le32        reserved[4];
 585 };
 586
 587
 588 struct Vmxnet3_TxQueueConf {
 589     __le64        txRingBasePA;
 590     __le64        dataRingBasePA;
 591     __le64        compRingBasePA;
 592     __le64        ddPA;         /* driver data */
 593     __le64        reserved;
 594     __le32        txRingSize;   /* # of tx desc */
 595     __le32        dataRingSize; /* # of data desc */
 596     __le32        compRingSize; /* # of comp desc */
 597     __le32        ddLen;        /* size of driver data */
 598     u8        intrIdx;
 599     u8        _pad[7];
 600 };
 601
 602
 603 struct Vmxnet3_RxQueueConf {
 604     __le64        rxRingBasePA[2];
 605     __le64        compRingBasePA;
 606     __le64        ddPA;            /* driver data */
 607     __le64        reserved;
 608     __le32        rxRingSize[2];   /* # of rx desc */
 609     __le32        compRingSize;    /* # of rx comp desc */
 610     __le32        ddLen;           /* size of driver data */
 611     u8        intrIdx;
 612     u8        _pad[7];
 613 };
 614
 615
 616 enum vmxnet3_intr_mask_mode {
 617     VMXNET3_IMM_AUTO   = 0,
 618     VMXNET3_IMM_ACTIVE = 1,
 619     VMXNET3_IMM_LAZY   = 2
 620 };
 621
 622 enum vmxnet3_intr_type {
 623     VMXNET3_IT_AUTO = 0,
 624     VMXNET3_IT_INTX = 1,
 625     VMXNET3_IT_MSI  = 2,
 626     VMXNET3_IT_MSIX = 3
 627 };
 628
 629 #define VMXNET3_MAX_TX_QUEUES  8
 630 #define VMXNET3_MAX_RX_QUEUES  16
 631 /* addition 1 for events */
 632 #define VMXNET3_MAX_INTRS      25
 633
 634 /* value of intrCtrl */
 635 #define VMXNET3_IC_DISABLE_ALL  0x1   /* bit 0 */
 636
 637
 638 struct Vmxnet3_IntrConf {
 639     bool        autoMask;
 640     u8        numIntrs;      /* # of interrupts */
 641     u8        eventIntrIdx;
 642     u8        modLevels[VMXNET3_MAX_INTRS];    /* moderation level for
 643                              * each intr */
 644     __le32        intrCtrl;
 645     __le32        reserved[2];
 646 };
 647
 648 /* one bit per VLAN ID, the size is in the units of u32 */
 649 #define VMXNET3_VFT_SIZE  (4096/(sizeof(uint32_t)*8))
 650
 651
 652 struct Vmxnet3_QueueStatus {
 653     bool        stopped;
 654     u8        _pad[3];
 655     __le32        error;
 656 };
 657
 658
 659 struct Vmxnet3_TxQueueCtrl {
 660     __le32        txNumDeferred;
 661     __le32        txThreshold;
 662     __le64        reserved;
 663 };
 664
 665
 666 struct Vmxnet3_RxQueueCtrl {
 667     bool        updateRxProd;
 668     u8        _pad[7];
 669     __le64        reserved;
 670 };
 671
 672 enum {
 673     VMXNET3_RXM_UCAST     = 0x01,  /* unicast only */
 674     VMXNET3_RXM_MCAST     = 0x02,  /* multicast passing the filters */
 675     VMXNET3_RXM_BCAST     = 0x04,  /* broadcast only */
 676     VMXNET3_RXM_ALL_MULTI = 0x08,  /* all multicast */
 677     VMXNET3_RXM_PROMISC   = 0x10  /* promiscuous */
 678 };
 679
 680 struct Vmxnet3_RxFilterConf {
 681     __le32        rxMode;       /* VMXNET3_RXM_xxx */
 682     __le16        mfTableLen;   /* size of the multicast filter table */
 683     __le16        _pad1;
 684     __le64        mfTablePA;    /* PA of the multicast filters table */
 685     __le32        vfTable[VMXNET3_VFT_SIZE]; /* vlan filter */
 686 };
 687
 688
 689 #define VMXNET3_PM_MAX_FILTERS        6
 690 #define VMXNET3_PM_MAX_PATTERN_SIZE   128
 691 #define VMXNET3_PM_MAX_MASK_SIZE      (VMXNET3_PM_MAX_PATTERN_SIZE / 8)
 692
 693 #define VMXNET3_PM_WAKEUP_MAGIC  cpu_to_le16(0x01)  /* wake up on magic pkts */
 694 #define VMXNET3_PM_WAKEUP_FILTER cpu_to_le16(0x02)  /* wake up on pkts matching
 695                                                      * filters */
 696
 697
 698 struct Vmxnet3_PM_PktFilter {
 699     u8        maskSize;
 700     u8        patternSize;
 701     u8        mask[VMXNET3_PM_MAX_MASK_SIZE];
 702     u8        pattern[VMXNET3_PM_MAX_PATTERN_SIZE];
 703     u8        pad[6];
 704 };
 705
 706
 707 struct Vmxnet3_PMConf {
 708     __le16        wakeUpEvents;  /* VMXNET3_PM_WAKEUP_xxx */
 709     u8        numFilters;
 710     u8        pad[5];
 711     struct Vmxnet3_PM_PktFilter filters[VMXNET3_PM_MAX_FILTERS];
 712 };
 713
 714
 715 struct Vmxnet3_VariableLenConfDesc {
 716     __le32        confVer;
 717     __le32        confLen;
 718     __le64        confPA;
 719 };
 720
 721
 722 struct Vmxnet3_TxQueueDesc {
 723     struct Vmxnet3_TxQueueCtrl        ctrl;
 724     struct Vmxnet3_TxQueueConf        conf;
 725
 726     /* Driver read after a GET command */
 727     struct Vmxnet3_QueueStatus        status;
 728     struct UPT1_TxStats            stats;
 729     u8                    _pad[88]; /* 128 aligned */
 730 };
 731
 732
 733 struct Vmxnet3_RxQueueDesc {
 734     struct Vmxnet3_RxQueueCtrl        ctrl;
 735     struct Vmxnet3_RxQueueConf        conf;
 736     /* Driver read after a GET commad */
 737     struct Vmxnet3_QueueStatus        status;
 738     struct UPT1_RxStats            stats;
 739     u8                      __pad[88]; /* 128 aligned */
 740 };
 741
 742
 743 struct Vmxnet3_DSDevRead {
 744     /* read-only region for device, read by dev in response to a SET cmd */
 745     struct Vmxnet3_MiscConf            misc;
 746     struct Vmxnet3_IntrConf            intrConf;
 747     struct Vmxnet3_RxFilterConf        rxFilterConf;
 748     struct Vmxnet3_VariableLenConfDesc    rssConfDesc;
 749     struct Vmxnet3_VariableLenConfDesc    pmConfDesc;
 750     struct Vmxnet3_VariableLenConfDesc    pluginConfDesc;
 751 };
 752
 753 /* All structures in DriverShared are padded to multiples of 8 bytes */
 754 struct Vmxnet3_DriverShared {
 755     __le32              magic;
 756     /* make devRead start at 64bit boundaries */
 757     __le32              pad;
 758     struct Vmxnet3_DSDevRead    devRead;
 759     __le32              ecr;
 760     __le32              reserved[5];
 761 };
 762
 763
 764 #define VMXNET3_ECR_RQERR       (1 << 0)
 765 #define VMXNET3_ECR_TQERR       (1 << 1)
 766 #define VMXNET3_ECR_LINK        (1 << 2)
 767 #define VMXNET3_ECR_DIC         (1 << 3)
 768 #define VMXNET3_ECR_DEBUG       (1 << 4)
 769
 770 /* flip the gen bit of a ring */
 771 #define VMXNET3_FLIP_RING_GEN(gen) ((gen) = (gen) ^ 0x1)
 772
 773 /* only use this if moving the idx won't affect the gen bit */
 774 #define VMXNET3_INC_RING_IDX_ONLY(idx, ring_size) \
 775     do {\
 776         (idx)++;\
 777         if (unlikely((idx) == (ring_size))) {\
 778             (idx) = 0;\
 779         } \
 780     } while (0)
 781
 782 #define VMXNET3_SET_VFTABLE_ENTRY(vfTable, vid) \
 783     (vfTable[vid >> 5] |= (1 << (vid & 31)))
 784 #define VMXNET3_CLEAR_VFTABLE_ENTRY(vfTable, vid) \
 785     (vfTable[vid >> 5] &= ~(1 << (vid & 31)))
 786
 787 #define VMXNET3_VFTABLE_ENTRY_IS_SET(vfTable, vid) \
 788     ((vfTable[vid >> 5] & (1 << (vid & 31))) != 0)
 789
 790 #define VMXNET3_MAX_MTU     9000
 791 #define VMXNET3_MIN_MTU     60
 792
 793 #define VMXNET3_LINK_UP         (10000 << 16 | 1)    /* 10 Gbps, up */
 794 #define VMXNET3_LINK_DOWN       0
 795
 796 #undef u64
 797 #undef u32
 798 #undef u16
 799 #undef u8
 800 #undef __le16
 801 #undef __le32
 802 #undef __le64
 803 #if defined(HOST_WORDS_BIGENDIAN)
 804 #undef __BIG_ENDIAN_BITFIELD
 805 #endif
 806
 807 #endif