drivers/net/ethernet/cisco/enic/vnic_devcmd.h

   1 /*
   2  * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
   3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4  *
   5  * This program is free software; you may redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  10  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  11  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  12  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  13  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  14  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  15  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  16  * SOFTWARE.
  17  *
  18  */
  19
  20 #ifndef _VNIC_DEVCMD_H_
  21 #define _VNIC_DEVCMD_H_
  22
  23 #define _CMD_NBITS      14
  24 #define _CMD_VTYPEBITS  10
  25 #define _CMD_FLAGSBITS  6
  26 #define _CMD_DIRBITS    2
  27
  28 #define _CMD_NMASK      ((1 << _CMD_NBITS)-1)
  29 #define _CMD_VTYPEMASK  ((1 << _CMD_VTYPEBITS)-1)
  30 #define _CMD_FLAGSMASK  ((1 << _CMD_FLAGSBITS)-1)
  31 #define _CMD_DIRMASK    ((1 << _CMD_DIRBITS)-1)
  32
  33 #define _CMD_NSHIFT     0
  34 #define _CMD_VTYPESHIFT (_CMD_NSHIFT+_CMD_NBITS)
  35 #define _CMD_FLAGSSHIFT (_CMD_VTYPESHIFT+_CMD_VTYPEBITS)
  36 #define _CMD_DIRSHIFT   (_CMD_FLAGSSHIFT+_CMD_FLAGSBITS)
  37
  38 /*
  39  * Direction bits (from host perspective).
  40  */
  41 #define _CMD_DIR_NONE   0U
  42 #define _CMD_DIR_WRITE  1U
  43 #define _CMD_DIR_READ   2U
  44 #define _CMD_DIR_RW     (_CMD_DIR_WRITE | _CMD_DIR_READ)
  45
  46 /*
  47  * Flag bits.
  48  */
  49 #define _CMD_FLAGS_NONE 0U
  50 #define _CMD_FLAGS_NOWAIT 1U
  51
  52 /*
  53  * vNIC type bits.
  54  */
  55 #define _CMD_VTYPE_NONE  0U
  56 #define _CMD_VTYPE_ENET  1U
  57 #define _CMD_VTYPE_FC    2U
  58 #define _CMD_VTYPE_SCSI  4U
  59 #define _CMD_VTYPE_ALL   (_CMD_VTYPE_ENET | _CMD_VTYPE_FC | _CMD_VTYPE_SCSI)
  60
  61 /*
  62  * Used to create cmds..
  63 */
  64 #define _CMDCF(dir, flags, vtype, nr)  \
  65         (((dir)   << _CMD_DIRSHIFT) | \
  66         ((flags) << _CMD_FLAGSSHIFT) | \
  67         ((vtype) << _CMD_VTYPESHIFT) | \
  68         ((nr)    << _CMD_NSHIFT))
  69 #define _CMDC(dir, vtype, nr)    _CMDCF(dir, 0, vtype, nr)
  70 #define _CMDCNW(dir, vtype, nr)  _CMDCF(dir, _CMD_FLAGS_NOWAIT, vtype, nr)
  71
  72 /*
  73  * Used to decode cmds..
  74 */
  75 #define _CMD_DIR(cmd)            (((cmd) >> _CMD_DIRSHIFT) & _CMD_DIRMASK)
  76 #define _CMD_FLAGS(cmd)          (((cmd) >> _CMD_FLAGSSHIFT) & _CMD_FLAGSMASK)
  77 #define _CMD_VTYPE(cmd)          (((cmd) >> _CMD_VTYPESHIFT) & _CMD_VTYPEMASK)
  78 #define _CMD_N(cmd)              (((cmd) >> _CMD_NSHIFT) & _CMD_NMASK)
  79
  80 enum vnic_devcmd_cmd {
  81         CMD_NONE                = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_NONE, 0),
  82
  83         /*
  84          * mcpu fw info in mem:
  85          * in:
  86          *   (u64)a0=paddr to struct vnic_devcmd_fw_info
  87          * action:
  88          *   Fills in struct vnic_devcmd_fw_info (128 bytes)
  89          * note:
  90          *   An old definition of CMD_MCPU_FW_INFO
  91          */
  92         CMD_MCPU_FW_INFO_OLD    = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 1),
  93
  94         /*
  95          * mcpu fw info in mem:
  96          * in:
  97          *   (u64)a0=paddr to struct vnic_devcmd_fw_info
  98          *   (u16)a1=size of the structure
  99          * out:
 100          *       (u16)a1=0                          for in:a1 = 0,
 101          *               data size actually written for other values.
 102          * action:
 103          *   Fills in first 128 bytes of vnic_devcmd_fw_info for in:a1 = 0,
 104          *            first in:a1 bytes               for 0 < in:a1 <= 132,
 105          *            132 bytes                       for other values of in:a1.
 106          * note:
 107          *   CMD_MCPU_FW_INFO and CMD_MCPU_FW_INFO_OLD have the same enum 1
 108          *   for source compatibility.
 109          */
 110         CMD_MCPU_FW_INFO        = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 1),
 111
 112         /* dev-specific block member:
 113          *    in: (u16)a0=offset,(u8)a1=size
 114          *    out: a0=value */
 115         CMD_DEV_SPEC            = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 2),
 116
 117         /* stats clear */
 118         CMD_STATS_CLEAR         = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 3),
 119
 120         /* stats dump in mem: (u64)a0=paddr to stats area,
 121          *                    (u16)a1=sizeof stats area */
 122         CMD_STATS_DUMP          = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 4),
 123
 124         /* set Rx packet filter: (u32)a0=filters (see CMD_PFILTER_*) */
 125         CMD_PACKET_FILTER       = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 7),
 126
 127         /* set Rx packet filter for all: (u32)a0=filters (see CMD_PFILTER_*) */
 128         CMD_PACKET_FILTER_ALL   = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 7),
 129
 130         /* hang detection notification */
 131         CMD_HANG_NOTIFY         = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 8),
 132
 133         /* MAC address in (u48)a0 */
 134         CMD_GET_MAC_ADDR        = _CMDC(_CMD_DIR_READ,
 135                                         _CMD_VTYPE_ENET | _CMD_VTYPE_FC, 9),
 136
 137         /* add addr from (u48)a0 */
 138         CMD_ADDR_ADD            = _CMDCNW(_CMD_DIR_WRITE,
 139                                         _CMD_VTYPE_ENET | _CMD_VTYPE_FC, 12),
 140
 141         /* del addr from (u48)a0 */
 142         CMD_ADDR_DEL            = _CMDCNW(_CMD_DIR_WRITE,
 143                                         _CMD_VTYPE_ENET | _CMD_VTYPE_FC, 13),
 144
 145         /* add VLAN id in (u16)a0 */
 146         CMD_VLAN_ADD            = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 14),
 147
 148         /* del VLAN id in (u16)a0 */
 149         CMD_VLAN_DEL            = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 15),
 150
 151         /* nic_cfg (no wait, always succeeds)
 152          * in: (u32)a0
 153          *
 154          * Capability query:
 155          * out: (u64) a0 = 1 if a1 is valid
 156          *      (u64) a1 = (NIC_CFG bits supported) | (flags << 32)
 157          *
 158          * flags are CMD_NIC_CFG_CAPF_xxx
 159          */
 160         CMD_NIC_CFG             = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 16),
 161         /* nic_cfg_chk (will return error if flags are invalid)
 162          * in: (u32)a0
 163          *
 164          * Capability query:
 165          * out: (u64) a0 = 1 if a1 is valid
 166          *      (u64) a1 = (NIC_CFG bits supported) | (flags << 32)
 167          *
 168          * flags are CMD_NIC_CFG_CAPF_xxx
 169          */
 170         CMD_NIC_CFG_CHK         = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 16),
 171
 172         /* union vnic_rss_key in mem: (u64)a0=paddr, (u16)a1=len */
 173         CMD_RSS_KEY             = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 17),
 174
 175         /* union vnic_rss_cpu in mem: (u64)a0=paddr, (u16)a1=len */
 176         CMD_RSS_CPU             = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 18),
 177
 178         /* initiate softreset */
 179         CMD_SOFT_RESET          = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 19),
 180
 181         /* softreset status:
 182          *    out: a0=0 reset complete, a0=1 reset in progress */
 183         CMD_SOFT_RESET_STATUS   = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 20),
 184
 185         /* set struct vnic_devcmd_notify buffer in mem:
 186          * in:
 187          *   (u64)a0=paddr to notify (set paddr=0 to unset)
 188          *   (u32)a1 & 0x00000000ffffffff=sizeof(struct vnic_devcmd_notify)
 189          *   (u16)a1 & 0x0000ffff00000000=intr num (-1 for no intr)
 190          * out:
 191          *   (u32)a1 = effective size
 192          */
 193         CMD_NOTIFY              = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 21),
 194
 195         /* UNDI API: (u64)a0=paddr to s_PXENV_UNDI_ struct,
 196          *           (u8)a1=PXENV_UNDI_xxx */
 197         CMD_UNDI                = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 22),
 198
 199         /* initiate open sequence (u32)a0=flags (see CMD_OPENF_*) */
 200         CMD_OPEN                = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 23),
 201
 202         /* open status:
 203          *    out: a0=0 open complete, a0=1 open in progress */
 204         CMD_OPEN_STATUS         = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 24),
 205
 206         /* close vnic */
 207         CMD_CLOSE               = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 25),
 208
 209         /* initialize virtual link: (u32)a0=flags (see CMD_INITF_*) */
 210 /***** Replaced by CMD_INIT *****/
 211         CMD_INIT_v1             = _CMDCNW(_CMD_DIR_READ, _CMD_VTYPE_ALL, 26),
 212
 213         /* variant of CMD_INIT, with provisioning info
 214          *     (u64)a0=paddr of vnic_devcmd_provinfo
 215          *     (u32)a1=sizeof provision info */
 216         CMD_INIT_PROV_INFO      = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 27),
 217
 218         /* enable virtual link */
 219         CMD_ENABLE              = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 28),
 220
 221         /* enable virtual link, waiting variant. */
 222         CMD_ENABLE_WAIT         = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 28),
 223
 224         /* disable virtual link */
 225         CMD_DISABLE             = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 29),
 226
 227         /* stats dump sum of all vnic stats on same uplink in mem:
 228          *     (u64)a0=paddr
 229          *     (u16)a1=sizeof stats area */
 230         CMD_STATS_DUMP_ALL      = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 30),
 231
 232         /* init status:
 233          *    out: a0=0 init complete, a0=1 init in progress
 234          *         if a0=0, a1=errno */
 235         CMD_INIT_STATUS         = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 31),
 236
 237         /* INT13 API: (u64)a0=paddr to vnic_int13_params struct
 238          *            (u32)a1=INT13_CMD_xxx */
 239         CMD_INT13               = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_FC, 32),
 240
 241         /* logical uplink enable/disable: (u64)a0: 0/1=disable/enable */
 242         CMD_LOGICAL_UPLINK      = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 33),
 243
 244         /* undo initialize of virtual link */
 245         CMD_DEINIT              = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 34),
 246
 247         /* initialize virtual link: (u32)a0=flags (see CMD_INITF_*) */
 248         CMD_INIT                = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 35),
 249
 250         /* check fw capability of a cmd:
 251          * in:  (u32)a0=cmd
 252          * out: (u32)a0=errno, 0:valid cmd, a1=supported VNIC_STF_* bits */
 253         CMD_CAPABILITY          = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 36),
 254
 255         /* persistent binding info
 256          * in:  (u64)a0=paddr of arg
 257          *      (u32)a1=CMD_PERBI_XXX */
 258         CMD_PERBI               = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_FC, 37),
 259
 260         /* Interrupt Assert Register functionality
 261          * in: (u16)a0=interrupt number to assert
 262          */
 263         CMD_IAR                 = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 38),
 264
 265         /* initiate hangreset, like softreset after hang detected */
 266         CMD_HANG_RESET          = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 39),
 267
 268         /* hangreset status:
 269          *    out: a0=0 reset complete, a0=1 reset in progress */
 270         CMD_HANG_RESET_STATUS   = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 40),
 271
 272         /*
 273          * Set hw ingress packet vlan rewrite mode:
 274          * in:  (u32)a0=new vlan rewrite mode
 275          * out: (u32)a0=old vlan rewrite mode */
 276         CMD_IG_VLAN_REWRITE_MODE = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ENET, 41),
 277
 278         /*
 279          * in:  (u16)a0=bdf of target vnic
 280          *      (u32)a1=cmd to proxy
 281          *      a2-a15=args to cmd in a1
 282          * out: (u32)a0=status of proxied cmd
 283          *      a1-a15=out args of proxied cmd */
 284         CMD_PROXY_BY_BDF =      _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 42),
 285
 286         /*
 287          * As for BY_BDF except a0 is index of hvnlink subordinate vnic
 288          * or SR-IOV virtual vnic
 289          */
 290         CMD_PROXY_BY_INDEX =    _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 43),
 291
 292         /*
 293          * For HPP toggle:
 294          * adapter-info-get
 295          * in:  (u64)a0=phsical address of buffer passed in from caller.
 296          *      (u16)a1=size of buffer specified in a0.
 297          * out: (u64)a0=phsical address of buffer passed in from caller.
 298          *      (u16)a1=actual bytes from VIF-CONFIG-INFO TLV, or
 299          *              0 if no VIF-CONFIG-INFO TLV was ever received. */
 300         CMD_CONFIG_INFO_GET     = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 44),
 301
 302         /* INT13 API: (u64)a0=paddr to vnic_int13_params struct
 303          *            (u32)a1=INT13_CMD_xxx
 304          */
 305         CMD_INT13_ALL = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 45),
 306
 307         /* Set default vlan:
 308          * in: (u16)a0=new default vlan
 309          *     (u16)a1=zero for overriding vlan with param a0,
 310          *                     non-zero for resetting vlan to the default
 311          * out: (u16)a0=old default vlan
 312          */
 313         CMD_SET_DEFAULT_VLAN = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 46),
 314
 315         /* init_prov_info2:
 316          * Variant of CMD_INIT_PROV_INFO, where it will not try to enable
 317          * the vnic until CMD_ENABLE2 is issued.
 318          *     (u64)a0=paddr of vnic_devcmd_provinfo
 319          *     (u32)a1=sizeof provision info
 320          */
 321         CMD_INIT_PROV_INFO2  = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 47),
 322
 323         /* enable2:
 324          *      (u32)a0=0                  ==> standby
 325          *             =CMD_ENABLE2_ACTIVE ==> active
 326          */
 327         CMD_ENABLE2 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 48),
 328
 329         /*
 330          * cmd_status:
 331          *     Returns the status of the specified command
 332          * Input:
 333          *     a0 = command for which status is being queried.
 334          *          Possible values are:
 335          *              CMD_SOFT_RESET
 336          *              CMD_HANG_RESET
 337          *              CMD_OPEN
 338          *              CMD_INIT
 339          *              CMD_INIT_PROV_INFO
 340          *              CMD_DEINIT
 341          *              CMD_INIT_PROV_INFO2
 342          *              CMD_ENABLE2
 343          * Output:
 344          *     if status == STAT_ERROR
 345          *        a0 = ERR_ENOTSUPPORTED - status for command in a0 is
 346          *                                 not supported
 347          *     if status == STAT_NONE
 348          *        a0 = status of the devcmd specified in a0 as follows.
 349          *             ERR_SUCCESS   - command in a0 completed successfully
 350          *             ERR_EINPROGRESS - command in a0 is still in progress
 351          */
 352         CMD_STATUS = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 49),
 353
 354         /*
 355          * Returns interrupt coalescing timer conversion factors.
 356          * After calling this devcmd, ENIC driver can convert
 357          * interrupt coalescing timer in usec into CPU cycles as follows:
 358          *
 359          *   intr_timer_cycles = intr_timer_usec * multiplier / divisor
 360          *
 361          * Interrupt coalescing timer in usecs can be obtained from
 362          * CPU cycles as follows:
 363          *
 364          *   intr_timer_usec = intr_timer_cycles * divisor / multiplier
 365          *
 366          * in: none
 367          * out: (u32)a0 = multiplier
 368          *      (u32)a1 = divisor
 369          *      (u32)a2 = maximum timer value in usec
 370          */
 371         CMD_INTR_COAL_CONVERT = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 50),
 372
 373         /*
 374          * Set the predefined mac address as default
 375          * in:
 376          *   (u48)a0 = mac addr
 377          */
 378         CMD_SET_MAC_ADDR = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 55),
 379
 380         /* Update the provisioning info of the given VIF
 381          *     (u64)a0=paddr of vnic_devcmd_provinfo
 382          *     (u32)a1=sizeof provision info
 383          */
 384         CMD_PROV_INFO_UPDATE = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 56),
 385
 386         /* Initialization for the devcmd2 interface.
 387          * in: (u64) a0 = host result buffer physical address
 388          * in: (u16) a1 = number of entries in result buffer
 389          */
 390         CMD_INITIALIZE_DEVCMD2 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 57),
 391
 392         /* Add a filter.
 393          * in: (u64) a0= filter address
 394          *     (u32) a1= size of filter
 395          * out: (u32) a0=filter identifier
 396          */
 397         CMD_ADD_FILTER = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ENET, 58),
 398
 399         /* Delete a filter.
 400          * in: (u32) a0=filter identifier
 401          */
 402         CMD_DEL_FILTER = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 59),
 403
 404         /* Enable a Queue Pair in User space NIC
 405          * in: (u32) a0=Queue Pair number
 406          *     (u32) a1= command
 407          */
 408         CMD_QP_ENABLE = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 60),
 409
 410         /* Disable a Queue Pair in User space NIC
 411          * in: (u32) a0=Queue Pair number
 412          *     (u32) a1= command
 413          */
 414         CMD_QP_DISABLE = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 61),
 415
 416         /* Stats dump Queue Pair in User space NIC
 417          * in: (u32) a0=Queue Pair number
 418          *     (u64) a1=host buffer addr for status dump
 419          *     (u32) a2=length of the buffer
 420          */
 421         CMD_QP_STATS_DUMP = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 62),
 422
 423         /* Clear stats for Queue Pair in User space NIC
 424          * in: (u32) a0=Queue Pair number
 425          */
 426         CMD_QP_STATS_CLEAR = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 63),
 427
 428         /* Use this devcmd for agreeing on the highest common version supported
 429          * by both driver and fw for features who need such a facility.
 430          * in:  (u64) a0 = feature (driver requests for the supported versions
 431          *      on this feature)
 432          * out: (u64) a0 = bitmap of all supported versions for that feature
 433          */
 434         CMD_GET_SUPP_FEATURE_VER = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ENET, 69),
 435
 436         /* Control (Enable/Disable) overlay offloads on the given vnic
 437          * in: (u8) a0 = OVERLAY_FEATURE_NVGRE : NVGRE
 438          *          a0 = OVERLAY_FEATURE_VXLAN : VxLAN
 439          * in: (u8) a1 = OVERLAY_OFFLOAD_ENABLE : Enable or
 440          *          a1 = OVERLAY_OFFLOAD_DISABLE : Disable or
 441          *          a1 = OVERLAY_OFFLOAD_ENABLE_V2 : Enable with version 2
 442          */
 443         CMD_OVERLAY_OFFLOAD_CTRL = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 72),
 444
 445         /* Configuration of overlay offloads feature on a given vNIC
 446          * in: (u8) a0 = DEVCMD_OVERLAY_NVGRE : NVGRE
 447          *          a0 = DEVCMD_OVERLAY_VXLAN : VxLAN
 448          * in: (u8) a1 = VXLAN_PORT_UPDATE : VxLAN
 449          * in: (u16) a2 = unsigned short int port information
 450          */
 451         CMD_OVERLAY_OFFLOAD_CFG = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 73),
 452 };
 453
 454 /* CMD_ENABLE2 flags */
 455 #define CMD_ENABLE2_STANDBY 0x0
 456 #define CMD_ENABLE2_ACTIVE  0x1
 457
 458 /* flags for CMD_OPEN */
 459 #define CMD_OPENF_OPROM         0x1     /* open coming from option rom */
 460 #define CMD_OPENF_IG_DESCCACHE  0x2     /* Do not flush IG DESC cache */
 461
 462 /* flags for CMD_INIT */
 463 #define CMD_INITF_DEFAULT_MAC   0x1     /* init with default mac addr */
 464
 465 /* flags for CMD_PACKET_FILTER */
 466 #define CMD_PFILTER_DIRECTED            0x01
 467 #define CMD_PFILTER_MULTICAST           0x02
 468 #define CMD_PFILTER_BROADCAST           0x04
 469 #define CMD_PFILTER_PROMISCUOUS         0x08
 470 #define CMD_PFILTER_ALL_MULTICAST       0x10
 471
 472 /* Commands for CMD_QP_ENABLE/CM_QP_DISABLE */
 473 #define CMD_QP_RQWQ                     0x0
 474
 475 /* rewrite modes for CMD_IG_VLAN_REWRITE_MODE */
 476 #define IG_VLAN_REWRITE_MODE_DEFAULT_TRUNK              0
 477 #define IG_VLAN_REWRITE_MODE_UNTAG_DEFAULT_VLAN         1
 478 #define IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN  2
 479 #define IG_VLAN_REWRITE_MODE_PASS_THRU                  3
 480
 481 enum vnic_devcmd_status {
 482         STAT_NONE = 0,
 483         STAT_BUSY = 1 << 0,     /* cmd in progress */
 484         STAT_ERROR = 1 << 1,    /* last cmd caused error (code in a0) */
 485 };
 486
 487 enum vnic_devcmd_error {
 488         ERR_SUCCESS = 0,
 489         ERR_EINVAL = 1,
 490         ERR_EFAULT = 2,
 491         ERR_EPERM = 3,
 492         ERR_EBUSY = 4,
 493         ERR_ECMDUNKNOWN = 5,
 494         ERR_EBADSTATE = 6,
 495         ERR_ENOMEM = 7,
 496         ERR_ETIMEDOUT = 8,
 497         ERR_ELINKDOWN = 9,
 498         ERR_EMAXRES = 10,
 499         ERR_ENOTSUPPORTED = 11,
 500         ERR_EINPROGRESS = 12,
 501         ERR_MAX
 502 };
 503
 504 /*
 505  * note: hw_version and asic_rev refer to the same thing,
 506  *       but have different formats. hw_version is
 507  *       a 32-byte string (e.g. "A2") and asic_rev is
 508  *       a 16-bit integer (e.g. 0xA2).
 509  */
 510 struct vnic_devcmd_fw_info {
 511         char fw_version[32];
 512         char fw_build[32];
 513         char hw_version[32];
 514         char hw_serial_number[32];
 515         u16 asic_type;
 516         u16 asic_rev;
 517 };
 518
 519 struct vnic_devcmd_notify {
 520         u32 csum;               /* checksum over following words */
 521
 522         u32 link_state;         /* link up == 1 */
 523         u32 port_speed;         /* effective port speed (rate limit) */
 524         u32 mtu;                /* MTU */
 525         u32 msglvl;             /* requested driver msg lvl */
 526         u32 uif;                /* uplink interface */
 527         u32 status;             /* status bits (see VNIC_STF_*) */
 528         u32 error;              /* error code (see ERR_*) for first ERR */
 529         u32 link_down_cnt;      /* running count of link down transitions */
 530         u32 perbi_rebuild_cnt;  /* running count of perbi rebuilds */
 531 };
 532 #define VNIC_STF_FATAL_ERR      0x0001  /* fatal fw error */
 533 #define VNIC_STF_STD_PAUSE      0x0002  /* standard link-level pause on */
 534 #define VNIC_STF_PFC_PAUSE      0x0004  /* priority flow control pause on */
 535 /* all supported status flags */
 536 #define VNIC_STF_ALL            (VNIC_STF_FATAL_ERR |\
 537                                  VNIC_STF_STD_PAUSE |\
 538                                  VNIC_STF_PFC_PAUSE |\
 539                                  0)
 540
 541 struct vnic_devcmd_provinfo {
 542         u8 oui[3];
 543         u8 type;
 544         u8 data[];
 545 };
 546
 547 /* These are used in flags field of different filters to denote
 548  * valid fields used.
 549  */
 550 #define FILTER_FIELD_VALID(fld) (1 << (fld - 1))
 551
 552 #define FILTER_FIELDS_USNIC ( \
 553                         FILTER_FIELD_VALID(1) | \
 554                         FILTER_FIELD_VALID(2) | \
 555                         FILTER_FIELD_VALID(3) | \
 556                         FILTER_FIELD_VALID(4))
 557
 558 #define FILTER_FIELDS_IPV4_5TUPLE ( \
 559                         FILTER_FIELD_VALID(1) | \
 560                         FILTER_FIELD_VALID(2) | \
 561                         FILTER_FIELD_VALID(3) | \
 562                         FILTER_FIELD_VALID(4) | \
 563                         FILTER_FIELD_VALID(5))
 564
 565 #define FILTER_FIELDS_MAC_VLAN ( \
 566                         FILTER_FIELD_VALID(1) | \
 567                         FILTER_FIELD_VALID(2))
 568
 569 #define FILTER_FIELD_USNIC_VLAN    FILTER_FIELD_VALID(1)
 570 #define FILTER_FIELD_USNIC_ETHTYPE FILTER_FIELD_VALID(2)
 571 #define FILTER_FIELD_USNIC_PROTO   FILTER_FIELD_VALID(3)
 572 #define FILTER_FIELD_USNIC_ID      FILTER_FIELD_VALID(4)
 573
 574 struct filter_usnic_id {
 575         u32 flags;
 576         u16 vlan;
 577         u16 ethtype;
 578         u8 proto_version;
 579         u32 usnic_id;
 580 } __packed;
 581
 582 #define FILTER_FIELD_5TUP_PROTO  FILTER_FIELD_VALID(1)
 583 #define FILTER_FIELD_5TUP_SRC_AD FILTER_FIELD_VALID(2)
 584 #define FILTER_FIELD_5TUP_DST_AD FILTER_FIELD_VALID(3)
 585 #define FILTER_FIELD_5TUP_SRC_PT FILTER_FIELD_VALID(4)
 586 #define FILTER_FIELD_5TUP_DST_PT FILTER_FIELD_VALID(5)
 587
 588 /* Enums for the protocol field. */
 589 enum protocol_e {
 590         PROTO_UDP = 0,
 591         PROTO_TCP = 1,
 592 };
 593
 594 struct filter_ipv4_5tuple {
 595         u32 flags;
 596         u32 protocol;
 597         u32 src_addr;
 598         u32 dst_addr;
 599         u16 src_port;
 600         u16 dst_port;
 601 } __packed;
 602
 603 #define FILTER_FIELD_VMQ_VLAN   FILTER_FIELD_VALID(1)
 604 #define FILTER_FIELD_VMQ_MAC    FILTER_FIELD_VALID(2)
 605
 606 struct filter_mac_vlan {
 607         u32 flags;
 608         u16 vlan;
 609         u8 mac_addr[6];
 610 } __packed;
 611
 612 /* Specifies the filter_action type. */
 613 enum {
 614         FILTER_ACTION_RQ_STEERING = 0,
 615         FILTER_ACTION_MAX
 616 };
 617
 618 struct filter_action {
 619         u32 type;
 620         union {
 621                 u32 rq_idx;
 622         } u;
 623 } __packed;
 624
 625 /* Specifies the filter type. */
 626 enum filter_type {
 627         FILTER_USNIC_ID = 0,
 628         FILTER_IPV4_5TUPLE = 1,
 629         FILTER_MAC_VLAN = 2,
 630         FILTER_MAX
 631 };
 632
 633 struct filter {
 634         u32 type;
 635         union {
 636                 struct filter_usnic_id usnic;
 637                 struct filter_ipv4_5tuple ipv4;
 638                 struct filter_mac_vlan mac_vlan;
 639         } u;
 640 } __packed;
 641
 642 enum {
 643         CLSF_TLV_FILTER = 0,
 644         CLSF_TLV_ACTION = 1,
 645 };
 646
 647 /* Maximum size of buffer to CMD_ADD_FILTER */
 648 #define FILTER_MAX_BUF_SIZE 100
 649
 650 struct filter_tlv {
 651         u32 type;
 652         u32 length;
 653         u32 val[];
 654 };
 655
 656 enum {
 657         CLSF_ADD = 0,
 658         CLSF_DEL = 1,
 659 };
 660
 661 /*
 662  * Writing cmd register causes STAT_BUSY to get set in status register.
 663  * When cmd completes, STAT_BUSY will be cleared.
 664  *
 665  * If cmd completed successfully STAT_ERROR will be clear
 666  * and args registers contain cmd-specific results.
 667  *
 668  * If cmd error, STAT_ERROR will be set and args[0] contains error code.
 669  *
 670  * status register is read-only.  While STAT_BUSY is set,
 671  * all other register contents are read-only.
 672  */
 673
 674 /* Make sizeof(vnic_devcmd) a power-of-2 for I/O BAR. */
 675 #define VNIC_DEVCMD_NARGS 15
 676 struct vnic_devcmd {
 677         u32 status;                     /* RO */
 678         u32 cmd;                        /* RW */
 679         u64 args[VNIC_DEVCMD_NARGS];    /* RW cmd args (little-endian) */
 680 };
 681
 682 #define DEVCMD2_FNORESULT       0x1     /* Don't copy result to host */
 683
 684 #define VNIC_DEVCMD2_NARGS      VNIC_DEVCMD_NARGS
 685 struct vnic_devcmd2 {
 686         u16 pad;
 687         u16 flags;
 688         u32 cmd;
 689         u64 args[VNIC_DEVCMD2_NARGS];
 690 };
 691
 692 #define VNIC_DEVCMD2_NRESULTS   VNIC_DEVCMD_NARGS
 693 struct devcmd2_result {
 694         u64 results[VNIC_DEVCMD2_NRESULTS];
 695         u32 pad;
 696         u16 completed_index;
 697         u8  error;
 698         u8  color;
 699 };
 700
 701 #define DEVCMD2_RING_SIZE       32
 702 #define DEVCMD2_DESC_SIZE       128
 703
 704 enum overlay_feature_t {
 705         OVERLAY_FEATURE_NVGRE = 1,
 706         OVERLAY_FEATURE_VXLAN,
 707         OVERLAY_FEATURE_MAX,
 708 };
 709
 710 enum overlay_ofld_cmd {
 711         OVERLAY_OFFLOAD_ENABLE,
 712         OVERLAY_OFFLOAD_DISABLE,
 713         OVERLAY_OFFLOAD_ENABLE_P2,
 714         OVERLAY_OFFLOAD_MAX,
 715 };
 716
 717 #define OVERLAY_CFG_VXLAN_PORT_UPDATE   0
 718
 719 #define ENIC_VXLAN_INNER_IPV6           BIT(0)
 720 #define ENIC_VXLAN_OUTER_IPV6           BIT(1)
 721 #define ENIC_VXLAN_MULTI_WQ             BIT(2)
 722
 723 /* Use this enum to get the supported versions for each of these features
 724  * If you need to use the devcmd_get_supported_feature_version(), add
 725  * the new feature into this enum and install function handler in devcmd.c
 726  */
 727 enum vic_feature_t {
 728         VIC_FEATURE_VXLAN,
 729         VIC_FEATURE_RDMA,
 730         VIC_FEATURE_VXLAN_PATCH,
 731         VIC_FEATURE_MAX,
 732 };
 733
 734 #endif /* _VNIC_DEVCMD_H_ */