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 /* routing control */
107 #define OPA_VNIC_ENCAP_RC_DEFAULT   0
108 #define OPA_VNIC_ENCAP_RC_IPV4      4
109 #define OPA_VNIC_ENCAP_RC_IPV4_UDP  8
110 #define OPA_VNIC_ENCAP_RC_IPV4_TCP  12
111 #define OPA_VNIC_ENCAP_RC_IPV6      16
112 #define OPA_VNIC_ENCAP_RC_IPV6_TCP  20
113 #define OPA_VNIC_ENCAP_RC_IPV6_UDP  24
114 
115 #define OPA_VNIC_ENCAP_RC_EXT(w, b) (((w) >> OPA_VNIC_ENCAP_RC_ ## b) & 0x7)
116 
117 /**
118  * struct opa_vesw_info - OPA vnic switch information
119  * @fabric_id: 10-bit fabric id
120  * @vesw_id: 12-bit virtual ethernet switch id
121  * @def_port_mask: bitmask of default ports
122  * @pkey: partition key
123  * @u_mcast_dlid: unknown multicast dlid
124  * @u_ucast_dlid: array of unknown unicast dlids
125  * @rc: routing control
126  * @eth_mtu: Ethernet MTU
127  */
128 struct opa_vesw_info {
129 	__be16  fabric_id;
130 	__be16  vesw_id;
131 
132 	u8      rsvd0[6];
133 	__be16  def_port_mask;
134 
135 	u8      rsvd1[2];
136 	__be16  pkey;
137 
138 	u8      rsvd2[4];
139 	__be32  u_mcast_dlid;
140 	__be32  u_ucast_dlid[OPA_VESW_MAX_NUM_DEF_PORT];
141 
142 	__be32  rc;
143 
144 	u8      rsvd3[56];
145 	__be16  eth_mtu;
146 	u8      rsvd4[2];
147 } __packed;
148 
149 /**
150  * struct opa_per_veswport_info - OPA vnic per port information
151  * @port_num: port number
152  * @eth_link_status: current ethernet link state
153  * @base_mac_addr: base mac address
154  * @config_state: configured port state
155  * @oper_state: operational port state
156  * @max_mac_tbl_ent: max number of mac table entries
157  * @max_smac_ent: max smac entries in mac table
158  * @mac_tbl_digest: mac table digest
159  * @encap_slid: base slid for the port
160  * @pcp_to_sc_uc: sc by pcp index for unicast ethernet packets
161  * @pcp_to_vl_uc: vl by pcp index for unicast ethernet packets
162  * @pcp_to_sc_mc: sc by pcp index for multicast ethernet packets
163  * @pcp_to_vl_mc: vl by pcp index for multicast ethernet packets
164  * @non_vlan_sc_uc: sc for non-vlan unicast ethernet packets
165  * @non_vlan_vl_uc: vl for non-vlan unicast ethernet packets
166  * @non_vlan_sc_mc: sc for non-vlan multicast ethernet packets
167  * @non_vlan_vl_mc: vl for non-vlan multicast ethernet packets
168  * @uc_macs_gen_count: generation count for unicast macs list
169  * @mc_macs_gen_count: generation count for multicast macs list
170  */
171 struct opa_per_veswport_info {
172 	__be32  port_num;
173 
174 	u8      eth_link_status;
175 	u8      rsvd0[3];
176 
177 	u8      base_mac_addr[ETH_ALEN];
178 	u8      config_state;
179 	u8      oper_state;
180 
181 	__be16  max_mac_tbl_ent;
182 	__be16  max_smac_ent;
183 	__be32  mac_tbl_digest;
184 	u8      rsvd1[4];
185 
186 	__be32  encap_slid;
187 
188 	u8      pcp_to_sc_uc[OPA_VNIC_MAX_NUM_PCP];
189 	u8      pcp_to_vl_uc[OPA_VNIC_MAX_NUM_PCP];
190 	u8      pcp_to_sc_mc[OPA_VNIC_MAX_NUM_PCP];
191 	u8      pcp_to_vl_mc[OPA_VNIC_MAX_NUM_PCP];
192 
193 	u8      non_vlan_sc_uc;
194 	u8      non_vlan_vl_uc;
195 	u8      non_vlan_sc_mc;
196 	u8      non_vlan_vl_mc;
197 
198 	u8      rsvd2[48];
199 
200 	__be16  uc_macs_gen_count;
201 	__be16  mc_macs_gen_count;
202 
203 	u8      rsvd3[8];
204 } __packed;
205 
206 /**
207  * struct opa_veswport_info - OPA vnic port information
208  * @vesw: OPA vnic switch information
209  * @vport: OPA vnic per port information
210  *
211  * On host, each of the virtual ethernet ports belongs
212  * to a different virtual ethernet switches.
213  */
214 struct opa_veswport_info {
215 	struct opa_vesw_info          vesw;
216 	struct opa_per_veswport_info  vport;
217 };
218 
219 /**
220  * struct opa_veswport_mactable_entry - single entry in the forwarding table
221  * @mac_addr: MAC address
222  * @mac_addr_mask: MAC address bit mask
223  * @dlid_sd: Matching DLID and side data
224  *
225  * On the host each virtual ethernet port will have
226  * a forwarding table. These tables are used to
227  * map a MAC to a LID and other data. For more
228  * details see struct opa_veswport_mactable_entries.
229  * This is the structure of a single mactable entry
230  */
231 struct opa_veswport_mactable_entry {
232 	u8      mac_addr[ETH_ALEN];
233 	u8      mac_addr_mask[ETH_ALEN];
234 	__be32  dlid_sd;
235 } __packed;
236 
237 /**
238  * struct opa_veswport_mactable - Forwarding table array
239  * @offset: mac table starting offset
240  * @num_entries: Number of entries to get or set
241  * @mac_tbl_digest: mac table digest
242  * @tbl_entries: Array of table entries
243  *
244  * The EM sends down this structure in a MAD indicating
245  * the starting offset in the forwarding table that this
246  * entry is to be loaded into and the number of entries
247  * that that this MAD instance contains
248  * The mac_tbl_digest has been added to this MAD structure. It will be set by
249  * the EM and it will be used by the EM to check if there are any
250  * discrepancies with this value and the value
251  * maintained by the EM in the case of VNIC port being deleted or unloaded
252  * A new instantiation of a VNIC will always have a value of zero.
253  * This value is stored as part of the vnic adapter structure and will be
254  * accessed by the GET and SET routines for both the mactable entries and the
255  * veswport info.
256  */
257 struct opa_veswport_mactable {
258 	__be16                              offset;
259 	__be16                              num_entries;
260 	__be32                              mac_tbl_digest;
261 	struct opa_veswport_mactable_entry  tbl_entries[];
262 } __packed;
263 
264 /**
265  * struct opa_veswport_summary_counters - summary counters
266  * @vp_instance: vport instance on the OPA port
267  * @vesw_id: virtual ethernet switch id
268  * @veswport_num: virtual ethernet switch port number
269  * @tx_errors: transmit errors
270  * @rx_errors: receive errors
271  * @tx_packets: transmit packets
272  * @rx_packets: receive packets
273  * @tx_bytes: transmit bytes
274  * @rx_bytes: receive bytes
275  * @tx_unicast: unicast packets transmitted
276  * @tx_mcastbcast: multicast/broadcast packets transmitted
277  * @tx_untagged: non-vlan packets transmitted
278  * @tx_vlan: vlan packets transmitted
279  * @tx_64_size: transmit packet length is 64 bytes
280  * @tx_65_127: transmit packet length is >=65 and < 127 bytes
281  * @tx_128_255: transmit packet length is >=128 and < 255 bytes
282  * @tx_256_511: transmit packet length is >=256 and < 511 bytes
283  * @tx_512_1023: transmit packet length is >=512 and < 1023 bytes
284  * @tx_1024_1518: transmit packet length is >=1024 and < 1518 bytes
285  * @tx_1519_max: transmit packet length >= 1519 bytes
286  * @rx_unicast: unicast packets received
287  * @rx_mcastbcast: multicast/broadcast packets received
288  * @rx_untagged: non-vlan packets received
289  * @rx_vlan: vlan packets received
290  * @rx_64_size: received packet length is 64 bytes
291  * @rx_65_127: received packet length is >=65 and < 127 bytes
292  * @rx_128_255: received packet length is >=128 and < 255 bytes
293  * @rx_256_511: received packet length is >=256 and < 511 bytes
294  * @rx_512_1023: received packet length is >=512 and < 1023 bytes
295  * @rx_1024_1518: received packet length is >=1024 and < 1518 bytes
296  * @rx_1519_max: received packet length >= 1519 bytes
297  *
298  * All the above are counters of corresponding conditions.
299  */
300 struct opa_veswport_summary_counters {
301 	__be16  vp_instance;
302 	__be16  vesw_id;
303 	__be32  veswport_num;
304 
305 	__be64  tx_errors;
306 	__be64  rx_errors;
307 	__be64  tx_packets;
308 	__be64  rx_packets;
309 	__be64  tx_bytes;
310 	__be64  rx_bytes;
311 
312 	__be64  tx_unicast;
313 	__be64  tx_mcastbcast;
314 
315 	__be64  tx_untagged;
316 	__be64  tx_vlan;
317 
318 	__be64  tx_64_size;
319 	__be64  tx_65_127;
320 	__be64  tx_128_255;
321 	__be64  tx_256_511;
322 	__be64  tx_512_1023;
323 	__be64  tx_1024_1518;
324 	__be64  tx_1519_max;
325 
326 	__be64  rx_unicast;
327 	__be64  rx_mcastbcast;
328 
329 	__be64  rx_untagged;
330 	__be64  rx_vlan;
331 
332 	__be64  rx_64_size;
333 	__be64  rx_65_127;
334 	__be64  rx_128_255;
335 	__be64  rx_256_511;
336 	__be64  rx_512_1023;
337 	__be64  rx_1024_1518;
338 	__be64  rx_1519_max;
339 
340 	__be64  reserved[16];
341 } __packed;
342 
343 /**
344  * struct opa_veswport_error_counters - error counters
345  * @vp_instance: vport instance on the OPA port
346  * @vesw_id: virtual ethernet switch id
347  * @veswport_num: virtual ethernet switch port number
348  * @tx_errors: transmit errors
349  * @rx_errors: receive errors
350  * @tx_smac_filt: smac filter errors
351  * @tx_dlid_zero: transmit packets with invalid dlid
352  * @tx_logic: other transmit errors
353  * @tx_drop_state: packet tansmission in non-forward port state
354  * @rx_bad_veswid: received packet with invalid vesw id
355  * @rx_runt: received ethernet packet with length < 64 bytes
356  * @rx_oversize: received ethernet packet with length > MTU size
357  * @rx_eth_down: received packets when interface is down
358  * @rx_drop_state: received packets in non-forwarding port state
359  * @rx_logic: other receive errors
360  *
361  * All the above are counters of corresponding error conditions.
362  */
363 struct opa_veswport_error_counters {
364 	__be16  vp_instance;
365 	__be16  vesw_id;
366 	__be32  veswport_num;
367 
368 	__be64  tx_errors;
369 	__be64  rx_errors;
370 
371 	__be64  rsvd0;
372 	__be64  tx_smac_filt;
373 	__be64  rsvd1;
374 	__be64  rsvd2;
375 	__be64  rsvd3;
376 	__be64  tx_dlid_zero;
377 	__be64  rsvd4;
378 	__be64  tx_logic;
379 	__be64  rsvd5;
380 	__be64  tx_drop_state;
381 
382 	__be64  rx_bad_veswid;
383 	__be64  rsvd6;
384 	__be64  rx_runt;
385 	__be64  rx_oversize;
386 	__be64  rsvd7;
387 	__be64  rx_eth_down;
388 	__be64  rx_drop_state;
389 	__be64  rx_logic;
390 	__be64  rsvd8;
391 
392 	__be64  rsvd9[16];
393 } __packed;
394 
395 /**
396  * struct opa_veswport_trap - Trap message sent to EM by VNIC
397  * @fabric_id: 10 bit fabric id
398  * @veswid: 12 bit virtual ethernet switch id
399  * @veswportnum: logical port number on the Virtual switch
400  * @opaportnum: physical port num (redundant on host)
401  * @veswportindex: switch port index on opa port 0 based
402  * @opcode: operation
403  * @reserved: 32 bit for alignment
404  *
405  * The VNIC will send trap messages to the Ethernet manager to
406  * inform it about changes to the VNIC config, behaviour etc.
407  * This is the format of the trap payload.
408  */
409 struct opa_veswport_trap {
410 	__be16  fabric_id;
411 	__be16  veswid;
412 	__be32  veswportnum;
413 	__be16  opaportnum;
414 	u8      veswportindex;
415 	u8      opcode;
416 	__be32  reserved;
417 } __packed;
418 
419 /**
420  * struct opa_vnic_iface_macs_entry - single entry in the mac list
421  * @mac_addr: MAC address
422  */
423 struct opa_vnic_iface_mac_entry {
424 	u8 mac_addr[ETH_ALEN];
425 };
426 
427 /**
428  * struct opa_veswport_iface_macs - Msg to set globally administered MAC
429  * @start_idx: position of first entry (0 based)
430  * @num_macs_in_msg: number of MACs in this message
431  * @tot_macs_in_lst: The total number of MACs the agent has
432  * @gen_count: gen_count to indicate change
433  * @entry: The mac list entry
434  *
435  * Same attribute IDS and attribute modifiers as in locally administered
436  * addresses used to set globally administered addresses
437  */
438 struct opa_veswport_iface_macs {
439 	__be16 start_idx;
440 	__be16 num_macs_in_msg;
441 	__be16 tot_macs_in_lst;
442 	__be16 gen_count;
443 	struct opa_vnic_iface_mac_entry entry[];
444 } __packed;
445 
446 /**
447  * struct opa_vnic_vema_mad - Generic VEMA MAD
448  * @mad_hdr: Generic MAD header
449  * @rmpp_hdr: RMPP header for vendor specific MADs
450  * @oui: Unique org identifier
451  * @data: MAD data
452  */
453 struct opa_vnic_vema_mad {
454 	struct ib_mad_hdr  mad_hdr;
455 	struct ib_rmpp_hdr rmpp_hdr;
456 	u8                 reserved;
457 	u8                 oui[3];
458 	u8                 data[OPA_VNIC_EMA_DATA];
459 };
460 
461 /**
462  * struct opa_vnic_notice_attr - Generic Notice MAD
463  * @gen_type: Generic/Specific bit and type of notice
464  * @oui_1: Vendor ID byte 1
465  * @oui_2: Vendor ID byte 2
466  * @oui_3: Vendor ID byte 3
467  * @trap_num: Trap number
468  * @toggle_count: Notice toggle bit and count value
469  * @issuer_lid: Trap issuer's lid
470  * @issuer_gid: Issuer GID (only if Report method)
471  * @raw_data: Trap message body
472  */
473 struct opa_vnic_notice_attr {
474 	u8     gen_type;
475 	u8     oui_1;
476 	u8     oui_2;
477 	u8     oui_3;
478 	__be16 trap_num;
479 	__be16 toggle_count;
480 	__be32 issuer_lid;
481 	__be32 reserved;
482 	u8     issuer_gid[16];
483 	u8     raw_data[64];
484 } __packed;
485 
486 /**
487  * struct opa_vnic_vema_mad_trap - Generic VEMA MAD Trap
488  * @mad_hdr: Generic MAD header
489  * @rmpp_hdr: RMPP header for vendor specific MADs
490  * @oui: Unique org identifier
491  * @notice: Notice structure
492  */
493 struct opa_vnic_vema_mad_trap {
494 	struct ib_mad_hdr            mad_hdr;
495 	struct ib_rmpp_hdr           rmpp_hdr;
496 	u8                           reserved;
497 	u8                           oui[3];
498 	struct opa_vnic_notice_attr  notice;
499 };
500 
501 #endif /* _OPA_VNIC_ENCAP_H */
502