drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h

   1 #ifndef _OPA_VNIC_ENCAP_H
   2 #define _OPA_VNIC_ENCAP_H
   3 /*
   4  * Copyright(c) 2017 Intel Corporation.
   5  *
   6  * This file is provided under a dual BSD/GPLv2 license.  When using or
   7  * redistributing this file, you may do so under either license.
   8  *
   9  * GPL LICENSE SUMMARY
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * BSD LICENSE
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  *
  26  *  - Redistributions of source code must retain the above copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  *  - Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in
  30  *    the documentation and/or other materials provided with the
  31  *    distribution.
  32  *  - Neither the name of Intel Corporation nor the names of its
  33  *    contributors may be used to endorse or promote products derived
  34  *    from this software without specific prior written permission.
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  37  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  38  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  39  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  40  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  42  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  43  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  44  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  45  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  46  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  47  *
  48  */
  49
  50 /*
  51  * This file contains all OPA VNIC declaration required for encapsulation
  52  * and decapsulation of Ethernet packets
  53  */
  54
  55 #include <linux/types.h>
  56 #include <rdma/ib_mad.h>
  57
  58 /* EMA class version */
  59 #define OPA_EMA_CLASS_VERSION               0x80
  60
  61 /*
  62  * Define the Intel vendor management class for OPA
  63  * ETHERNET MANAGEMENT
  64  */
  65 #define OPA_MGMT_CLASS_INTEL_EMA            0x34
  66
  67 /* EM attribute IDs */
  68 #define OPA_EM_ATTR_CLASS_PORT_INFO                 0x0001
  69 #define OPA_EM_ATTR_VESWPORT_INFO                   0x0011
  70 #define OPA_EM_ATTR_VESWPORT_MAC_ENTRIES            0x0012
  71 #define OPA_EM_ATTR_IFACE_UCAST_MACS                0x0013
  72 #define OPA_EM_ATTR_IFACE_MCAST_MACS                0x0014
  73 #define OPA_EM_ATTR_DELETE_VESW                     0x0015
  74 #define OPA_EM_ATTR_VESWPORT_SUMMARY_COUNTERS       0x0020
  75 #define OPA_EM_ATTR_VESWPORT_ERROR_COUNTERS         0x0022
  76
  77 /* VNIC configured and operational state values */
  78 #define OPA_VNIC_STATE_DROP_ALL        0x1
  79 #define OPA_VNIC_STATE_FORWARDING      0x3
  80
  81 #define OPA_VESW_MAX_NUM_DEF_PORT   16
  82 #define OPA_VNIC_MAX_NUM_PCP        8
  83
  84 #define OPA_VNIC_EMA_DATA    (OPA_MGMT_MAD_SIZE - IB_MGMT_VENDOR_HDR)
  85
  86 /* Defines for vendor specific notice(trap) attributes */
  87 #define OPA_INTEL_EMA_NOTICE_TYPE_INFO 0x04
  88
  89 /* INTEL OUI */
  90 #define INTEL_OUI_1 0x00
  91 #define INTEL_OUI_2 0x06
  92 #define INTEL_OUI_3 0x6a
  93
  94 /* Trap opcodes sent from VNIC */
  95 #define OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE 0x1
  96 #define OPA_VESWPORT_TRAP_IFACE_MCAST_MAC_CHANGE 0x2
  97 #define OPA_VESWPORT_TRAP_ETH_LINK_STATUS_CHANGE 0x3
  98
  99 #define OPA_VNIC_DLID_SD_IS_SRC_MAC(dlid_sd)  (!!((dlid_sd) & 0x20))
 100 #define OPA_VNIC_DLID_SD_GET_DLID(dlid_sd)    ((dlid_sd) >> 8)
 101
 102 /* VNIC Ethernet link status */
 103 #define OPA_VNIC_ETH_LINK_UP     1
 104 #define OPA_VNIC_ETH_LINK_DOWN   2
 105
 106 /**
 107  * struct opa_vesw_info - OPA vnic switch information
 108  * @fabric_id: 10-bit fabric id
 109  * @vesw_id: 12-bit virtual ethernet switch id
 110  * @def_port_mask: bitmask of default ports
 111  * @pkey: partition key
 112  * @u_mcast_dlid: unknown multicast dlid
 113  * @u_ucast_dlid: array of unknown unicast dlids
 114  * @eth_mtu: MTUs for each vlan PCP
 115  * @eth_mtu_non_vlan: MTU for non vlan packets
 116  */
 117 struct opa_vesw_info {
 118         __be16  fabric_id;
 119         __be16  vesw_id;
 120
 121         u8      rsvd0[6];
 122         __be16  def_port_mask;
 123
 124         u8      rsvd1[2];
 125         __be16  pkey;
 126
 127         u8      rsvd2[4];
 128         __be32  u_mcast_dlid;
 129         __be32  u_ucast_dlid[OPA_VESW_MAX_NUM_DEF_PORT];
 130
 131         u8      rsvd3[44];
 132         __be16  eth_mtu[OPA_VNIC_MAX_NUM_PCP];
 133         __be16  eth_mtu_non_vlan;
 134         u8      rsvd4[2];
 135 } __packed;
 136
 137 /**
 138  * struct opa_per_veswport_info - OPA vnic per port information
 139  * @port_num: port number
 140  * @eth_link_status: current ethernet link state
 141  * @base_mac_addr: base mac address
 142  * @config_state: configured port state
 143  * @oper_state: operational port state
 144  * @max_mac_tbl_ent: max number of mac table entries
 145  * @max_smac_ent: max smac entries in mac table
 146  * @mac_tbl_digest: mac table digest
 147  * @encap_slid: base slid for the port
 148  * @pcp_to_sc_uc: sc by pcp index for unicast ethernet packets
 149  * @pcp_to_vl_uc: vl by pcp index for unicast ethernet packets
 150  * @pcp_to_sc_mc: sc by pcp index for multicast ethernet packets
 151  * @pcp_to_vl_mc: vl by pcp index for multicast ethernet packets
 152  * @non_vlan_sc_uc: sc for non-vlan unicast ethernet packets
 153  * @non_vlan_vl_uc: vl for non-vlan unicast ethernet packets
 154  * @non_vlan_sc_mc: sc for non-vlan multicast ethernet packets
 155  * @non_vlan_vl_mc: vl for non-vlan multicast ethernet packets
 156  * @uc_macs_gen_count: generation count for unicast macs list
 157  * @mc_macs_gen_count: generation count for multicast macs list
 158  */
 159 struct opa_per_veswport_info {
 160         __be32  port_num;
 161
 162         u8      eth_link_status;
 163         u8      rsvd0[3];
 164
 165         u8      base_mac_addr[ETH_ALEN];
 166         u8      config_state;
 167         u8      oper_state;
 168
 169         __be16  max_mac_tbl_ent;
 170         __be16  max_smac_ent;
 171         __be32  mac_tbl_digest;
 172         u8      rsvd1[4];
 173
 174         __be32  encap_slid;
 175
 176         u8      pcp_to_sc_uc[OPA_VNIC_MAX_NUM_PCP];
 177         u8      pcp_to_vl_uc[OPA_VNIC_MAX_NUM_PCP];
 178         u8      pcp_to_sc_mc[OPA_VNIC_MAX_NUM_PCP];
 179         u8      pcp_to_vl_mc[OPA_VNIC_MAX_NUM_PCP];
 180
 181         u8      non_vlan_sc_uc;
 182         u8      non_vlan_vl_uc;
 183         u8      non_vlan_sc_mc;
 184         u8      non_vlan_vl_mc;
 185
 186         u8      rsvd2[48];
 187
 188         __be16  uc_macs_gen_count;
 189         __be16  mc_macs_gen_count;
 190
 191         u8      rsvd3[8];
 192 } __packed;
 193
 194 /**
 195  * struct opa_veswport_info - OPA vnic port information
 196  * @vesw: OPA vnic switch information
 197  * @vport: OPA vnic per port information
 198  *
 199  * On host, each of the virtual ethernet ports belongs
 200  * to a different virtual ethernet switches.
 201  */
 202 struct opa_veswport_info {
 203         struct opa_vesw_info          vesw;
 204         struct opa_per_veswport_info  vport;
 205 };
 206
 207 /**
 208  * struct opa_veswport_mactable_entry - single entry in the forwarding table
 209  * @mac_addr: MAC address
 210  * @mac_addr_mask: MAC address bit mask
 211  * @dlid_sd: Matching DLID and side data
 212  *
 213  * On the host each virtual ethernet port will have
 214  * a forwarding table. These tables are used to
 215  * map a MAC to a LID and other data. For more
 216  * details see struct opa_veswport_mactable_entries.
 217  * This is the structure of a single mactable entry
 218  */
 219 struct opa_veswport_mactable_entry {
 220         u8      mac_addr[ETH_ALEN];
 221         u8      mac_addr_mask[ETH_ALEN];
 222         __be32  dlid_sd;
 223 } __packed;
 224
 225 /**
 226  * struct opa_veswport_mactable - Forwarding table array
 227  * @offset: mac table starting offset
 228  * @num_entries: Number of entries to get or set
 229  * @mac_tbl_digest: mac table digest
 230  * @tbl_entries[]: Array of table entries
 231  *
 232  * The EM sends down this structure in a MAD indicating
 233  * the starting offset in the forwarding table that this
 234  * entry is to be loaded into and the number of entries
 235  * that that this MAD instance contains
 236  * The mac_tbl_digest has been added to this MAD structure. It will be set by
 237  * the EM and it will be used by the EM to check if there are any
 238  * discrepancies with this value and the value
 239  * maintained by the EM in the case of VNIC port being deleted or unloaded
 240  * A new instantiation of a VNIC will always have a value of zero.
 241  * This value is stored as part of the vnic adapter structure and will be
 242  * accessed by the GET and SET routines for both the mactable entries and the
 243  * veswport info.
 244  */
 245 struct opa_veswport_mactable {
 246         __be16                              offset;
 247         __be16                              num_entries;
 248         __be32                              mac_tbl_digest;
 249         struct opa_veswport_mactable_entry  tbl_entries[0];
 250 } __packed;
 251
 252 /**
 253  * struct opa_veswport_summary_counters - summary counters
 254  * @vp_instance: vport instance on the OPA port
 255  * @vesw_id: virtual ethernet switch id
 256  * @veswport_num: virtual ethernet switch port number
 257  * @tx_errors: transmit errors
 258  * @rx_errors: receive errors
 259  * @tx_packets: transmit packets
 260  * @rx_packets: receive packets
 261  * @tx_bytes: transmit bytes
 262  * @rx_bytes: receive bytes
 263  * @tx_unicast: unicast packets transmitted
 264  * @tx_mcastbcast: multicast/broadcast packets transmitted
 265  * @tx_untagged: non-vlan packets transmitted
 266  * @tx_vlan: vlan packets transmitted
 267  * @tx_64_size: transmit packet length is 64 bytes
 268  * @tx_65_127: transmit packet length is >=65 and < 127 bytes
 269  * @tx_128_255: transmit packet length is >=128 and < 255 bytes
 270  * @tx_256_511: transmit packet length is >=256 and < 511 bytes
 271  * @tx_512_1023: transmit packet length is >=512 and < 1023 bytes
 272  * @tx_1024_1518: transmit packet length is >=1024 and < 1518 bytes
 273  * @tx_1519_max: transmit packet length >= 1519 bytes
 274  * @rx_unicast: unicast packets received
 275  * @rx_mcastbcast: multicast/broadcast packets received
 276  * @rx_untagged: non-vlan packets received
 277  * @rx_vlan: vlan packets received
 278  * @rx_64_size: received packet length is 64 bytes
 279  * @rx_65_127: received packet length is >=65 and < 127 bytes
 280  * @rx_128_255: received packet length is >=128 and < 255 bytes
 281  * @rx_256_511: received packet length is >=256 and < 511 bytes
 282  * @rx_512_1023: received packet length is >=512 and < 1023 bytes
 283  * @rx_1024_1518: received packet length is >=1024 and < 1518 bytes
 284  * @rx_1519_max: received packet length >= 1519 bytes
 285  *
 286  * All the above are counters of corresponding conditions.
 287  */
 288 struct opa_veswport_summary_counters {
 289         __be16  vp_instance;
 290         __be16  vesw_id;
 291         __be32  veswport_num;
 292
 293         __be64  tx_errors;
 294         __be64  rx_errors;
 295         __be64  tx_packets;
 296         __be64  rx_packets;
 297         __be64  tx_bytes;
 298         __be64  rx_bytes;
 299
 300         __be64  tx_unicast;
 301         __be64  tx_mcastbcast;
 302
 303         __be64  tx_untagged;
 304         __be64  tx_vlan;
 305
 306         __be64  tx_64_size;
 307         __be64  tx_65_127;
 308         __be64  tx_128_255;
 309         __be64  tx_256_511;
 310         __be64  tx_512_1023;
 311         __be64  tx_1024_1518;
 312         __be64  tx_1519_max;
 313
 314         __be64  rx_unicast;
 315         __be64  rx_mcastbcast;
 316
 317         __be64  rx_untagged;
 318         __be64  rx_vlan;
 319
 320         __be64  rx_64_size;
 321         __be64  rx_65_127;
 322         __be64  rx_128_255;
 323         __be64  rx_256_511;
 324         __be64  rx_512_1023;
 325         __be64  rx_1024_1518;
 326         __be64  rx_1519_max;
 327
 328         __be64  reserved[16];
 329 } __packed;
 330
 331 /**
 332  * struct opa_veswport_error_counters - error counters
 333  * @vp_instance: vport instance on the OPA port
 334  * @vesw_id: virtual ethernet switch id
 335  * @veswport_num: virtual ethernet switch port number
 336  * @tx_errors: transmit errors
 337  * @rx_errors: receive errors
 338  * @tx_smac_filt: smac filter errors
 339  * @tx_dlid_zero: transmit packets with invalid dlid
 340  * @tx_logic: other transmit errors
 341  * @tx_drop_state: packet tansmission in non-forward port state
 342  * @rx_bad_veswid: received packet with invalid vesw id
 343  * @rx_runt: received ethernet packet with length < 64 bytes
 344  * @rx_oversize: received ethernet packet with length > MTU size
 345  * @rx_eth_down: received packets when interface is down
 346  * @rx_drop_state: received packets in non-forwarding port state
 347  * @rx_logic: other receive errors
 348  *
 349  * All the above are counters of corresponding erorr conditions.
 350  */
 351 struct opa_veswport_error_counters {
 352         __be16  vp_instance;
 353         __be16  vesw_id;
 354         __be32  veswport_num;
 355
 356         __be64  tx_errors;
 357         __be64  rx_errors;
 358
 359         __be64  rsvd0;
 360         __be64  tx_smac_filt;
 361         __be64  rsvd1;
 362         __be64  rsvd2;
 363         __be64  rsvd3;
 364         __be64  tx_dlid_zero;
 365         __be64  rsvd4;
 366         __be64  tx_logic;
 367         __be64  rsvd5;
 368         __be64  tx_drop_state;
 369
 370         __be64  rx_bad_veswid;
 371         __be64  rsvd6;
 372         __be64  rx_runt;
 373         __be64  rx_oversize;
 374         __be64  rsvd7;
 375         __be64  rx_eth_down;
 376         __be64  rx_drop_state;
 377         __be64  rx_logic;
 378         __be64  rsvd8;
 379
 380         __be64  rsvd9[16];
 381 } __packed;
 382
 383 /**
 384  * struct opa_veswport_trap - Trap message sent to EM by VNIC
 385  * @fabric_id: 10 bit fabric id
 386  * @veswid: 12 bit virtual ethernet switch id
 387  * @veswportnum: logical port number on the Virtual switch
 388  * @opaportnum: physical port num (redundant on host)
 389  * @veswportindex: switch port index on opa port 0 based
 390  * @opcode: operation
 391  * @reserved: 32 bit for alignment
 392  *
 393  * The VNIC will send trap messages to the Ethernet manager to
 394  * inform it about changes to the VNIC config, behaviour etc.
 395  * This is the format of the trap payload.
 396  */
 397 struct opa_veswport_trap {
 398         __be16  fabric_id;
 399         __be16  veswid;
 400         __be32  veswportnum;
 401         __be16  opaportnum;
 402         u8      veswportindex;
 403         u8      opcode;
 404         __be32  reserved;
 405 } __packed;
 406
 407 /**
 408  * struct opa_vnic_iface_macs_entry - single entry in the mac list
 409  * @mac_addr: MAC address
 410  */
 411 struct opa_vnic_iface_mac_entry {
 412         u8 mac_addr[ETH_ALEN];
 413 };
 414
 415 /**
 416  * struct opa_veswport_iface_macs - Msg to set globally administered MAC
 417  * @start_idx: position of first entry (0 based)
 418  * @num_macs_in_msg: number of MACs in this message
 419  * @tot_macs_in_lst: The total number of MACs the agent has
 420  * @gen_count: gen_count to indicate change
 421  * @entry: The mac list entry
 422  *
 423  * Same attribute IDS and attribute modifiers as in locally administered
 424  * addresses used to set globally administered addresses
 425  */
 426 struct opa_veswport_iface_macs {
 427         __be16 start_idx;
 428         __be16 num_macs_in_msg;
 429         __be16 tot_macs_in_lst;
 430         __be16 gen_count;
 431         struct opa_vnic_iface_mac_entry entry[0];
 432 } __packed;
 433
 434 /**
 435  * struct opa_vnic_vema_mad - Generic VEMA MAD
 436  * @mad_hdr: Generic MAD header
 437  * @rmpp_hdr: RMPP header for vendor specific MADs
 438  * @oui: Unique org identifier
 439  * @data: MAD data
 440  */
 441 struct opa_vnic_vema_mad {
 442         struct ib_mad_hdr  mad_hdr;
 443         struct ib_rmpp_hdr rmpp_hdr;
 444         u8                 reserved;
 445         u8                 oui[3];
 446         u8                 data[OPA_VNIC_EMA_DATA];
 447 };
 448
 449 /**
 450  * struct opa_vnic_notice_attr - Generic Notice MAD
 451  * @gen_type: Generic/Specific bit and type of notice
 452  * @oui_1: Vendor ID byte 1
 453  * @oui_2: Vendor ID byte 2
 454  * @oui_3: Vendor ID byte 3
 455  * @trap_num: Trap number
 456  * @toggle_count: Notice toggle bit and count value
 457  * @issuer_lid: Trap issuer's lid
 458  * @issuer_gid: Issuer GID (only if Report method)
 459  * @raw_data: Trap message body
 460  */
 461 struct opa_vnic_notice_attr {
 462         u8     gen_type;
 463         u8     oui_1;
 464         u8     oui_2;
 465         u8     oui_3;
 466         __be16 trap_num;
 467         __be16 toggle_count;
 468         __be32 issuer_lid;
 469         __be32 reserved;
 470         u8     issuer_gid[16];
 471         u8     raw_data[64];
 472 } __packed;
 473
 474 /**
 475  * struct opa_vnic_vema_mad_trap - Generic VEMA MAD Trap
 476  * @mad_hdr: Generic MAD header
 477  * @rmpp_hdr: RMPP header for vendor specific MADs
 478  * @oui: Unique org identifier
 479  * @notice: Notice structure
 480  */
 481 struct opa_vnic_vema_mad_trap {
 482         struct ib_mad_hdr            mad_hdr;
 483         struct ib_rmpp_hdr           rmpp_hdr;
 484         u8                           reserved;
 485         u8                           oui[3];
 486         struct opa_vnic_notice_attr  notice;
 487 };
 488
 489 #endif /* _OPA_VNIC_ENCAP_H */