1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2020 Intel Corporation
9 * This header file describes the VF-PF communication protocol used
10 * by the drivers for all devices starting from our 40G product line
12 * Admin queue buffer usage:
13 * desc->opcode is always aqc_opc_send_msg_to_pf
14 * flags, retval, datalen, and data addr are all used normally.
15 * The Firmware copies the cookie fields when sending messages between the
16 * PF and VF, but uses all other fields internally. Due to this limitation,
17 * we must send all messages as "indirect", i.e. using an external buffer.
19 * All the VSI indexes are relative to the VF. Each VF can have maximum of
20 * three VSIs. All the queue indexes are relative to the VSI. Each VF can
21 * have a maximum of sixteen queues for all of its VSIs.
23 * The PF is required to return a status code in v_retval for all messages
24 * except RESET_VF, which does not require any response. The return value
25 * is of status_code type, defined in the shared type.h.
27 * In general, VF driver initialization should roughly follow the order of
28 * these opcodes. The VF driver must first validate the API version of the
29 * PF driver, then request a reset, then get resources, then configure
30 * queues and interrupts. After these operations are complete, the VF
31 * driver may start its queues, optionally add MAC and VLAN filters, and
35 /* START GENERIC DEFINES
36 * Need to ensure the following enums and defines hold the same meaning and
37 * value in current and future projects
41 enum virtchnl_status_code {
42 VIRTCHNL_STATUS_SUCCESS = 0,
43 VIRTCHNL_STATUS_ERR_PARAM = -5,
44 VIRTCHNL_STATUS_ERR_NO_MEMORY = -18,
45 VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH = -38,
46 VIRTCHNL_STATUS_ERR_CQP_COMPL_ERROR = -39,
47 VIRTCHNL_STATUS_ERR_INVALID_VF_ID = -40,
48 VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR = -53,
49 VIRTCHNL_STATUS_ERR_NOT_SUPPORTED = -64,
52 /* Backward compatibility */
53 #define VIRTCHNL_ERR_PARAM VIRTCHNL_STATUS_ERR_PARAM
54 #define VIRTCHNL_STATUS_NOT_SUPPORTED VIRTCHNL_STATUS_ERR_NOT_SUPPORTED
56 #define VIRTCHNL_LINK_SPEED_2_5GB_SHIFT 0x0
57 #define VIRTCHNL_LINK_SPEED_100MB_SHIFT 0x1
58 #define VIRTCHNL_LINK_SPEED_1000MB_SHIFT 0x2
59 #define VIRTCHNL_LINK_SPEED_10GB_SHIFT 0x3
60 #define VIRTCHNL_LINK_SPEED_40GB_SHIFT 0x4
61 #define VIRTCHNL_LINK_SPEED_20GB_SHIFT 0x5
62 #define VIRTCHNL_LINK_SPEED_25GB_SHIFT 0x6
63 #define VIRTCHNL_LINK_SPEED_5GB_SHIFT 0x7
65 enum virtchnl_link_speed {
66 VIRTCHNL_LINK_SPEED_UNKNOWN = 0,
67 VIRTCHNL_LINK_SPEED_100MB = BIT(VIRTCHNL_LINK_SPEED_100MB_SHIFT),
68 VIRTCHNL_LINK_SPEED_1GB = BIT(VIRTCHNL_LINK_SPEED_1000MB_SHIFT),
69 VIRTCHNL_LINK_SPEED_10GB = BIT(VIRTCHNL_LINK_SPEED_10GB_SHIFT),
70 VIRTCHNL_LINK_SPEED_40GB = BIT(VIRTCHNL_LINK_SPEED_40GB_SHIFT),
71 VIRTCHNL_LINK_SPEED_20GB = BIT(VIRTCHNL_LINK_SPEED_20GB_SHIFT),
72 VIRTCHNL_LINK_SPEED_25GB = BIT(VIRTCHNL_LINK_SPEED_25GB_SHIFT),
73 VIRTCHNL_LINK_SPEED_2_5GB = BIT(VIRTCHNL_LINK_SPEED_2_5GB_SHIFT),
74 VIRTCHNL_LINK_SPEED_5GB = BIT(VIRTCHNL_LINK_SPEED_5GB_SHIFT),
77 /* for hsplit_0 field of Rx HMC context */
78 /* deprecated with IAVF 1.0 */
79 enum virtchnl_rx_hsplit {
80 VIRTCHNL_RX_HSPLIT_NO_SPLIT = 0,
81 VIRTCHNL_RX_HSPLIT_SPLIT_L2 = 1,
82 VIRTCHNL_RX_HSPLIT_SPLIT_IP = 2,
83 VIRTCHNL_RX_HSPLIT_SPLIT_TCP_UDP = 4,
84 VIRTCHNL_RX_HSPLIT_SPLIT_SCTP = 8,
87 #define VIRTCHNL_ETH_LENGTH_OF_ADDRESS 6
88 /* END GENERIC DEFINES */
90 /* Opcodes for VF-PF communication. These are placed in the v_opcode field
91 * of the virtchnl_msg structure.
94 /* The PF sends status change events to VFs using
95 * the VIRTCHNL_OP_EVENT opcode.
96 * VFs send requests to the PF using the other ops.
97 * Use of "advanced opcode" features must be negotiated as part of capabilities
98 * exchange and are not considered part of base mode feature set.
100 VIRTCHNL_OP_UNKNOWN = 0,
101 VIRTCHNL_OP_VERSION = 1, /* must ALWAYS be 1 */
102 VIRTCHNL_OP_RESET_VF = 2,
103 VIRTCHNL_OP_GET_VF_RESOURCES = 3,
104 VIRTCHNL_OP_CONFIG_TX_QUEUE = 4,
105 VIRTCHNL_OP_CONFIG_RX_QUEUE = 5,
106 VIRTCHNL_OP_CONFIG_VSI_QUEUES = 6,
107 VIRTCHNL_OP_CONFIG_IRQ_MAP = 7,
108 VIRTCHNL_OP_ENABLE_QUEUES = 8,
109 VIRTCHNL_OP_DISABLE_QUEUES = 9,
110 VIRTCHNL_OP_ADD_ETH_ADDR = 10,
111 VIRTCHNL_OP_DEL_ETH_ADDR = 11,
112 VIRTCHNL_OP_ADD_VLAN = 12,
113 VIRTCHNL_OP_DEL_VLAN = 13,
114 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE = 14,
115 VIRTCHNL_OP_GET_STATS = 15,
116 VIRTCHNL_OP_RSVD = 16,
117 VIRTCHNL_OP_EVENT = 17, /* must ALWAYS be 17 */
118 /* opcode 19 is reserved */
119 /* opcodes 20, 21, and 22 are reserved */
120 VIRTCHNL_OP_CONFIG_RSS_KEY = 23,
121 VIRTCHNL_OP_CONFIG_RSS_LUT = 24,
122 VIRTCHNL_OP_GET_RSS_HENA_CAPS = 25,
123 VIRTCHNL_OP_SET_RSS_HENA = 26,
124 VIRTCHNL_OP_ENABLE_VLAN_STRIPPING = 27,
125 VIRTCHNL_OP_DISABLE_VLAN_STRIPPING = 28,
126 VIRTCHNL_OP_REQUEST_QUEUES = 29,
127 VIRTCHNL_OP_ENABLE_CHANNELS = 30,
128 VIRTCHNL_OP_DISABLE_CHANNELS = 31,
129 VIRTCHNL_OP_ADD_CLOUD_FILTER = 32,
130 VIRTCHNL_OP_DEL_CLOUD_FILTER = 33,
131 /* opcodes 34, 35, 36, 37 and 38 are reserved */
132 VIRTCHNL_OP_DCF_CMD_DESC = 39,
133 VIRTCHNL_OP_DCF_CMD_BUFF = 40,
134 VIRTCHNL_OP_DCF_DISABLE = 41,
135 VIRTCHNL_OP_DCF_GET_VSI_MAP = 42,
136 VIRTCHNL_OP_DCF_GET_PKG_INFO = 43,
137 VIRTCHNL_OP_GET_SUPPORTED_RXDIDS = 44,
138 VIRTCHNL_OP_ADD_RSS_CFG = 45,
139 VIRTCHNL_OP_DEL_RSS_CFG = 46,
140 VIRTCHNL_OP_ADD_FDIR_FILTER = 47,
141 VIRTCHNL_OP_DEL_FDIR_FILTER = 48,
142 VIRTCHNL_OP_QUERY_FDIR_FILTER = 49,
145 /* These macros are used to generate compilation errors if a structure/union
146 * is not exactly the correct length. It gives a divide by zero error if the
147 * structure/union is not of the correct size, otherwise it creates an enum
148 * that is never used.
150 #define VIRTCHNL_CHECK_STRUCT_LEN(n, X) enum virtchnl_static_assert_enum_##X \
151 { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) }
152 #define VIRTCHNL_CHECK_UNION_LEN(n, X) enum virtchnl_static_asset_enum_##X \
153 { virtchnl_static_assert_##X = (n)/((sizeof(union X) == (n)) ? 1 : 0) }
155 /* Virtual channel message descriptor. This overlays the admin queue
156 * descriptor. All other data is passed in external buffers.
159 struct virtchnl_msg {
160 u8 pad[8]; /* AQ flags/opcode/len/retval fields */
161 enum virtchnl_ops v_opcode; /* avoid confusion with desc->opcode */
162 enum virtchnl_status_code v_retval; /* ditto for desc->retval */
163 u32 vfid; /* used by PF when sending to VF */
166 VIRTCHNL_CHECK_STRUCT_LEN(20, virtchnl_msg);
168 /* Message descriptions and data structures. */
170 /* VIRTCHNL_OP_VERSION
171 * VF posts its version number to the PF. PF responds with its version number
172 * in the same format, along with a return code.
173 * Reply from PF has its major/minor versions also in param0 and param1.
174 * If there is a major version mismatch, then the VF cannot operate.
175 * If there is a minor version mismatch, then the VF can operate but should
176 * add a warning to the system log.
178 * This enum element MUST always be specified as == 1, regardless of other
179 * changes in the API. The PF must always respond to this message without
180 * error regardless of version mismatch.
182 #define VIRTCHNL_VERSION_MAJOR 1
183 #define VIRTCHNL_VERSION_MINOR 1
184 #define VIRTCHNL_VERSION_MINOR_NO_VF_CAPS 0
186 struct virtchnl_version_info {
191 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_version_info);
193 #define VF_IS_V10(_v) (((_v)->major == 1) && ((_v)->minor == 0))
194 #define VF_IS_V11(_ver) (((_ver)->major == 1) && ((_ver)->minor == 1))
196 /* VIRTCHNL_OP_RESET_VF
197 * VF sends this request to PF with no parameters
198 * PF does NOT respond! VF driver must delay then poll VFGEN_RSTAT register
199 * until reset completion is indicated. The admin queue must be reinitialized
200 * after this operation.
202 * When reset is complete, PF must ensure that all queues in all VSIs associated
203 * with the VF are stopped, all queue configurations in the HMC are set to 0,
204 * and all MAC and VLAN filters (except the default MAC address) on all VSIs
208 /* VSI types that use VIRTCHNL interface for VF-PF communication. VSI_SRIOV
209 * vsi_type should always be 6 for backward compatibility. Add other fields
212 enum virtchnl_vsi_type {
213 VIRTCHNL_VSI_TYPE_INVALID = 0,
214 VIRTCHNL_VSI_SRIOV = 6,
217 /* VIRTCHNL_OP_GET_VF_RESOURCES
218 * Version 1.0 VF sends this request to PF with no parameters
219 * Version 1.1 VF sends this request to PF with u32 bitmap of its capabilities
220 * PF responds with an indirect message containing
221 * virtchnl_vf_resource and one or more
222 * virtchnl_vsi_resource structures.
225 struct virtchnl_vsi_resource {
228 enum virtchnl_vsi_type vsi_type;
230 u8 default_mac_addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
233 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
235 /* VF capability flags
236 * VIRTCHNL_VF_OFFLOAD_L2 flag is inclusive of base mode L2 offloads including
237 * TX/RX Checksum offloading and TSO for non-tunnelled packets.
239 #define VIRTCHNL_VF_OFFLOAD_L2 0x00000001
240 #define VIRTCHNL_VF_OFFLOAD_IWARP 0x00000002
241 #define VIRTCHNL_VF_OFFLOAD_RSVD 0x00000004
242 #define VIRTCHNL_VF_OFFLOAD_RSS_AQ 0x00000008
243 #define VIRTCHNL_VF_OFFLOAD_RSS_REG 0x00000010
244 #define VIRTCHNL_VF_OFFLOAD_WB_ON_ITR 0x00000020
245 #define VIRTCHNL_VF_OFFLOAD_REQ_QUEUES 0x00000040
246 #define VIRTCHNL_VF_OFFLOAD_CRC 0x00000080
247 #define VIRTCHNL_VF_OFFLOAD_VLAN 0x00010000
248 #define VIRTCHNL_VF_OFFLOAD_RX_POLLING 0x00020000
249 #define VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 0x00040000
250 #define VIRTCHNL_VF_OFFLOAD_RSS_PF 0X00080000
251 #define VIRTCHNL_VF_OFFLOAD_ENCAP 0X00100000
252 #define VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM 0X00200000
253 #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM 0X00400000
254 #define VIRTCHNL_VF_OFFLOAD_ADQ 0X00800000
255 #define VIRTCHNL_VF_OFFLOAD_ADQ_V2 0X01000000
256 #define VIRTCHNL_VF_OFFLOAD_USO 0X02000000
257 #define VIRTCHNL_VF_CAP_DCF 0X40000000
258 #define VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC 0X04000000
259 #define VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF 0X08000000
260 #define VIRTCHNL_VF_OFFLOAD_FDIR_PF 0X10000000
261 /* 0X80000000 is reserved */
263 /* Define below the capability flags that are not offloads */
264 #define VIRTCHNL_VF_CAP_ADV_LINK_SPEED 0x00000080
265 #define VF_BASE_MODE_OFFLOADS (VIRTCHNL_VF_OFFLOAD_L2 | \
266 VIRTCHNL_VF_OFFLOAD_VLAN | \
267 VIRTCHNL_VF_OFFLOAD_RSS_PF)
269 struct virtchnl_vf_resource {
279 struct virtchnl_vsi_resource vsi_res[1];
282 VIRTCHNL_CHECK_STRUCT_LEN(36, virtchnl_vf_resource);
284 /* VIRTCHNL_OP_CONFIG_TX_QUEUE
285 * VF sends this message to set up parameters for one TX queue.
286 * External data buffer contains one instance of virtchnl_txq_info.
287 * PF configures requested queue and returns a status code.
290 /* Tx queue config info */
291 struct virtchnl_txq_info {
294 u16 ring_len; /* number of descriptors, multiple of 8 */
295 u16 headwb_enabled; /* deprecated with AVF 1.0 */
297 u64 dma_headwb_addr; /* deprecated with AVF 1.0 */
300 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_txq_info);
302 /* VIRTCHNL_OP_CONFIG_RX_QUEUE
303 * VF sends this message to set up parameters for one RX queue.
304 * External data buffer contains one instance of virtchnl_rxq_info.
305 * PF configures requested queue and returns a status code. The
306 * crc_disable flag disables CRC stripping on the VF. Setting
307 * the crc_disable flag to 1 will disable CRC stripping for each
308 * queue in the VF where the flag is set. The VIRTCHNL_VF_OFFLOAD_CRC
309 * offload must have been set prior to sending this info or the PF
310 * will ignore the request. This flag should be set the same for
311 * all of the queues for a VF.
314 /* Rx queue config info */
315 struct virtchnl_rxq_info {
318 u32 ring_len; /* number of descriptors, multiple of 32 */
320 u16 splithdr_enabled; /* deprecated with AVF 1.0 */
324 /* only used when VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC is supported */
328 enum virtchnl_rx_hsplit rx_split_pos; /* deprecated with AVF 1.0 */
332 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_rxq_info);
334 /* VIRTCHNL_OP_CONFIG_VSI_QUEUES
335 * VF sends this message to set parameters for active TX and RX queues
336 * associated with the specified VSI.
337 * PF configures queues and returns status.
338 * If the number of queues specified is greater than the number of queues
339 * associated with the VSI, an error is returned and no queues are configured.
340 * NOTE: The VF is not required to configure all queues in a single request.
341 * It may send multiple messages. PF drivers must correctly handle all VF
344 struct virtchnl_queue_pair_info {
345 /* NOTE: vsi_id and queue_id should be identical for both queues. */
346 struct virtchnl_txq_info txq;
347 struct virtchnl_rxq_info rxq;
350 VIRTCHNL_CHECK_STRUCT_LEN(64, virtchnl_queue_pair_info);
352 struct virtchnl_vsi_queue_config_info {
356 struct virtchnl_queue_pair_info qpair[1];
359 VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_vsi_queue_config_info);
361 /* VIRTCHNL_OP_REQUEST_QUEUES
362 * VF sends this message to request the PF to allocate additional queues to
363 * this VF. Each VF gets a guaranteed number of queues on init but asking for
364 * additional queues must be negotiated. This is a best effort request as it
365 * is possible the PF does not have enough queues left to support the request.
366 * If the PF cannot support the number requested it will respond with the
367 * maximum number it is able to support. If the request is successful, PF will
368 * then reset the VF to institute required changes.
371 /* VF resource request */
372 struct virtchnl_vf_res_request {
376 /* VIRTCHNL_OP_CONFIG_IRQ_MAP
377 * VF uses this message to map vectors to queues.
378 * The rxq_map and txq_map fields are bitmaps used to indicate which queues
379 * are to be associated with the specified vector.
380 * The "other" causes are always mapped to vector 0. The VF may not request
381 * that vector 0 be used for traffic.
382 * PF configures interrupt mapping and returns status.
383 * NOTE: due to hardware requirements, all active queues (both TX and RX)
384 * should be mapped to interrupts, even if the driver intends to operate
385 * only in polling mode. In this case the interrupt may be disabled, but
386 * the ITR timer will still run to trigger writebacks.
388 struct virtchnl_vector_map {
397 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_vector_map);
399 struct virtchnl_irq_map_info {
401 struct virtchnl_vector_map vecmap[1];
404 VIRTCHNL_CHECK_STRUCT_LEN(14, virtchnl_irq_map_info);
406 /* VIRTCHNL_OP_ENABLE_QUEUES
407 * VIRTCHNL_OP_DISABLE_QUEUES
408 * VF sends these message to enable or disable TX/RX queue pairs.
409 * The queues fields are bitmaps indicating which queues to act upon.
410 * (Currently, we only support 16 queues per VF, but we make the field
411 * u32 to allow for expansion.)
412 * PF performs requested action and returns status.
413 * NOTE: The VF is not required to enable/disable all queues in a single
414 * request. It may send multiple messages.
415 * PF drivers must correctly handle all VF requests.
417 struct virtchnl_queue_select {
424 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_select);
426 /* VIRTCHNL_OP_ADD_ETH_ADDR
427 * VF sends this message in order to add one or more unicast or multicast
428 * address filters for the specified VSI.
429 * PF adds the filters and returns status.
432 /* VIRTCHNL_OP_DEL_ETH_ADDR
433 * VF sends this message in order to remove one or more unicast or multicast
434 * filters for the specified VSI.
435 * PF removes the filters and returns status.
438 /* VIRTCHNL_ETHER_ADDR_LEGACY
439 * Prior to adding the @type member to virtchnl_ether_addr, there were 2 pad
440 * bytes. Moving forward all VF drivers should not set type to
441 * VIRTCHNL_ETHER_ADDR_LEGACY. This is only here to not break previous/legacy
442 * behavior. The control plane function (i.e. PF) can use a best effort method
443 * of tracking the primary/device unicast in this case, but there is no
444 * guarantee and functionality depends on the implementation of the PF.
447 /* VIRTCHNL_ETHER_ADDR_PRIMARY
448 * All VF drivers should set @type to VIRTCHNL_ETHER_ADDR_PRIMARY for the
449 * primary/device unicast MAC address filter for VIRTCHNL_OP_ADD_ETH_ADDR and
450 * VIRTCHNL_OP_DEL_ETH_ADDR. This allows for the underlying control plane
451 * function (i.e. PF) to accurately track and use this MAC address for
452 * displaying on the host and for VM/function reset.
455 /* VIRTCHNL_ETHER_ADDR_EXTRA
456 * All VF drivers should set @type to VIRTCHNL_ETHER_ADDR_EXTRA for any extra
457 * unicast and/or multicast filters that are being added/deleted via
458 * VIRTCHNL_OP_DEL_ETH_ADDR/VIRTCHNL_OP_ADD_ETH_ADDR respectively.
460 struct virtchnl_ether_addr {
461 u8 addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
463 #define VIRTCHNL_ETHER_ADDR_LEGACY 0
464 #define VIRTCHNL_ETHER_ADDR_PRIMARY 1
465 #define VIRTCHNL_ETHER_ADDR_EXTRA 2
466 #define VIRTCHNL_ETHER_ADDR_TYPE_MASK 3 /* first two bits of type are valid */
470 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_ether_addr);
472 struct virtchnl_ether_addr_list {
475 struct virtchnl_ether_addr list[1];
478 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_ether_addr_list);
480 /* VIRTCHNL_OP_ADD_VLAN
481 * VF sends this message to add one or more VLAN tag filters for receives.
482 * PF adds the filters and returns status.
483 * If a port VLAN is configured by the PF, this operation will return an
487 /* VIRTCHNL_OP_DEL_VLAN
488 * VF sends this message to remove one or more VLAN tag filters for receives.
489 * PF removes the filters and returns status.
490 * If a port VLAN is configured by the PF, this operation will return an
494 struct virtchnl_vlan_filter_list {
500 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_vlan_filter_list);
502 /* VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE
503 * VF sends VSI id and flags.
504 * PF returns status code in retval.
505 * Note: we assume that broadcast accept mode is always enabled.
507 struct virtchnl_promisc_info {
512 VIRTCHNL_CHECK_STRUCT_LEN(4, virtchnl_promisc_info);
514 #define FLAG_VF_UNICAST_PROMISC 0x00000001
515 #define FLAG_VF_MULTICAST_PROMISC 0x00000002
517 /* VIRTCHNL_OP_GET_STATS
518 * VF sends this message to request stats for the selected VSI. VF uses
519 * the virtchnl_queue_select struct to specify the VSI. The queue_id
520 * field is ignored by the PF.
522 * PF replies with struct virtchnl_eth_stats in an external buffer.
525 struct virtchnl_eth_stats {
526 u64 rx_bytes; /* received bytes */
527 u64 rx_unicast; /* received unicast pkts */
528 u64 rx_multicast; /* received multicast pkts */
529 u64 rx_broadcast; /* received broadcast pkts */
531 u64 rx_unknown_protocol;
532 u64 tx_bytes; /* transmitted bytes */
533 u64 tx_unicast; /* transmitted unicast pkts */
534 u64 tx_multicast; /* transmitted multicast pkts */
535 u64 tx_broadcast; /* transmitted broadcast pkts */
540 /* VIRTCHNL_OP_CONFIG_RSS_KEY
541 * VIRTCHNL_OP_CONFIG_RSS_LUT
542 * VF sends these messages to configure RSS. Only supported if both PF
543 * and VF drivers set the VIRTCHNL_VF_OFFLOAD_RSS_PF bit during
544 * configuration negotiation. If this is the case, then the RSS fields in
545 * the VF resource struct are valid.
546 * Both the key and LUT are initialized to 0 by the PF, meaning that
547 * RSS is effectively disabled until set up by the VF.
549 struct virtchnl_rss_key {
552 u8 key[1]; /* RSS hash key, packed bytes */
555 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_key);
557 struct virtchnl_rss_lut {
560 u8 lut[1]; /* RSS lookup table */
563 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_lut);
565 /* VIRTCHNL_OP_GET_RSS_HENA_CAPS
566 * VIRTCHNL_OP_SET_RSS_HENA
567 * VF sends these messages to get and set the hash filter enable bits for RSS.
568 * By default, the PF sets these to all possible traffic types that the
569 * hardware supports. The VF can query this value if it wants to change the
570 * traffic types that are hashed by the hardware.
572 struct virtchnl_rss_hena {
576 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_rss_hena);
578 /* Type of RSS algorithm */
579 enum virtchnl_rss_algorithm {
580 VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC = 0,
581 VIRTCHNL_RSS_ALG_XOR_ASYMMETRIC = 1,
582 VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC = 2,
583 VIRTCHNL_RSS_ALG_XOR_SYMMETRIC = 3,
586 /* This is used by PF driver to enforce how many channels can be supported.
587 * When ADQ_V2 capability is negotiated, it will allow 16 channels otherwise
588 * PF driver will allow only max 4 channels
590 #define VIRTCHNL_MAX_ADQ_CHANNELS 4
591 #define VIRTCHNL_MAX_ADQ_V2_CHANNELS 16
593 /* VIRTCHNL_OP_ENABLE_CHANNELS
594 * VIRTCHNL_OP_DISABLE_CHANNELS
595 * VF sends these messages to enable or disable channels based on
596 * the user specified queue count and queue offset for each traffic class.
597 * This struct encompasses all the information that the PF needs from
598 * VF to create a channel.
600 struct virtchnl_channel_info {
601 u16 count; /* number of queues in a channel */
602 u16 offset; /* queues in a channel start from 'offset' */
607 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_channel_info);
609 struct virtchnl_tc_info {
612 struct virtchnl_channel_info list[1];
615 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_tc_info);
617 /* VIRTCHNL_ADD_CLOUD_FILTER
618 * VIRTCHNL_DEL_CLOUD_FILTER
619 * VF sends these messages to add or delete a cloud filter based on the
620 * user specified match and action filters. These structures encompass
621 * all the information that the PF needs from the VF to add/delete a
625 struct virtchnl_l4_spec {
626 u8 src_mac[ETH_ALEN];
627 u8 dst_mac[ETH_ALEN];
628 /* vlan_prio is part of this 16 bit field even from OS perspective
629 * vlan_id:12 is actual vlan_id, then vlanid:bit14..12 is vlan_prio
630 * in future, when decided to offload vlan_prio, pass that information
631 * as part of the "vlan_id" field, Bit14..12
634 __be16 pad; /* reserved for future use */
641 VIRTCHNL_CHECK_STRUCT_LEN(52, virtchnl_l4_spec);
643 union virtchnl_flow_spec {
644 struct virtchnl_l4_spec tcp_spec;
645 u8 buffer[128]; /* reserved for future use */
648 VIRTCHNL_CHECK_UNION_LEN(128, virtchnl_flow_spec);
650 enum virtchnl_action {
652 VIRTCHNL_ACTION_DROP = 0,
653 VIRTCHNL_ACTION_TC_REDIRECT,
654 VIRTCHNL_ACTION_PASSTHRU,
655 VIRTCHNL_ACTION_QUEUE,
656 VIRTCHNL_ACTION_Q_REGION,
657 VIRTCHNL_ACTION_MARK,
658 VIRTCHNL_ACTION_COUNT,
661 enum virtchnl_flow_type {
663 VIRTCHNL_TCP_V4_FLOW = 0,
664 VIRTCHNL_TCP_V6_FLOW,
665 VIRTCHNL_UDP_V4_FLOW,
666 VIRTCHNL_UDP_V6_FLOW,
669 struct virtchnl_filter {
670 union virtchnl_flow_spec data;
671 union virtchnl_flow_spec mask;
672 enum virtchnl_flow_type flow_type;
673 enum virtchnl_action action;
678 VIRTCHNL_CHECK_STRUCT_LEN(272, virtchnl_filter);
680 /* VIRTCHNL_OP_DCF_GET_VSI_MAP
681 * VF sends this message to get VSI mapping table.
682 * PF responds with an indirect message containing VF's
684 * The index of vf_vsi array is the logical VF ID, the
685 * value of vf_vsi array is the VF's HW VSI ID with its
686 * valid configuration.
688 struct virtchnl_dcf_vsi_map {
689 u16 pf_vsi; /* PF's HW VSI ID */
690 u16 num_vfs; /* The actual number of VFs allocated */
691 #define VIRTCHNL_DCF_VF_VSI_ID_S 0
692 #define VIRTCHNL_DCF_VF_VSI_ID_M (0xFFF << VIRTCHNL_DCF_VF_VSI_ID_S)
693 #define VIRTCHNL_DCF_VF_VSI_VALID (1 << 15)
697 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_dcf_vsi_map);
699 #define PKG_NAME_SIZE 32
709 VIRTCHNL_CHECK_STRUCT_LEN(4, pkg_version);
711 struct virtchnl_pkg_info {
712 struct pkg_version pkg_ver;
714 char pkg_name[PKG_NAME_SIZE];
718 VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_pkg_info);
720 struct virtchnl_supported_rxdids {
721 u64 supported_rxdids;
724 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_supported_rxdids);
727 * PF sends this message to inform the VF driver of events that may affect it.
728 * No direct response is expected from the VF, though it may generate other
729 * messages in response to this one.
731 enum virtchnl_event_codes {
732 VIRTCHNL_EVENT_UNKNOWN = 0,
733 VIRTCHNL_EVENT_LINK_CHANGE,
734 VIRTCHNL_EVENT_RESET_IMPENDING,
735 VIRTCHNL_EVENT_PF_DRIVER_CLOSE,
736 VIRTCHNL_EVENT_DCF_VSI_MAP_UPDATE,
739 #define PF_EVENT_SEVERITY_INFO 0
740 #define PF_EVENT_SEVERITY_ATTENTION 1
741 #define PF_EVENT_SEVERITY_ACTION_REQUIRED 2
742 #define PF_EVENT_SEVERITY_CERTAIN_DOOM 255
744 struct virtchnl_pf_event {
745 enum virtchnl_event_codes event;
747 /* If the PF driver does not support the new speed reporting
748 * capabilities then use link_event else use link_event_adv to
749 * get the speed and link information. The ability to understand
750 * new speeds is indicated by setting the capability flag
751 * VIRTCHNL_VF_CAP_ADV_LINK_SPEED in vf_cap_flags parameter
752 * in virtchnl_vf_resource struct and can be used to determine
753 * which link event struct to use below.
756 enum virtchnl_link_speed link_speed;
760 /* link_speed provided in Mbps */
773 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_pf_event);
776 /* Since VF messages are limited by u16 size, precalculate the maximum possible
777 * values of nested elements in virtchnl structures that virtual channel can
778 * possibly handle in a single message.
780 enum virtchnl_vector_limits {
781 VIRTCHNL_OP_CONFIG_VSI_QUEUES_MAX =
782 ((u16)(~0) - sizeof(struct virtchnl_vsi_queue_config_info)) /
783 sizeof(struct virtchnl_queue_pair_info),
785 VIRTCHNL_OP_CONFIG_IRQ_MAP_MAX =
786 ((u16)(~0) - sizeof(struct virtchnl_irq_map_info)) /
787 sizeof(struct virtchnl_vector_map),
789 VIRTCHNL_OP_ADD_DEL_ETH_ADDR_MAX =
790 ((u16)(~0) - sizeof(struct virtchnl_ether_addr_list)) /
791 sizeof(struct virtchnl_ether_addr),
793 VIRTCHNL_OP_ADD_DEL_VLAN_MAX =
794 ((u16)(~0) - sizeof(struct virtchnl_vlan_filter_list)) /
798 VIRTCHNL_OP_ENABLE_CHANNELS_MAX =
799 ((u16)(~0) - sizeof(struct virtchnl_tc_info)) /
800 sizeof(struct virtchnl_channel_info),
803 /* VF reset states - these are written into the RSTAT register:
804 * VFGEN_RSTAT on the VF
805 * When the PF initiates a reset, it writes 0
806 * When the reset is complete, it writes 1
807 * When the PF detects that the VF has recovered, it writes 2
808 * VF checks this register periodically to determine if a reset has occurred,
809 * then polls it to know when the reset is complete.
810 * If either the PF or VF reads the register while the hardware
811 * is in a reset state, it will return DEADBEEF, which, when masked
814 enum virtchnl_vfr_states {
815 VIRTCHNL_VFR_INPROGRESS = 0,
816 VIRTCHNL_VFR_COMPLETED,
817 VIRTCHNL_VFR_VFACTIVE,
820 #define VIRTCHNL_MAX_NUM_PROTO_HDRS 32
821 #define PROTO_HDR_SHIFT 5
822 #define PROTO_HDR_FIELD_START(proto_hdr_type) \
823 (proto_hdr_type << PROTO_HDR_SHIFT)
824 #define PROTO_HDR_FIELD_MASK ((1UL << PROTO_HDR_SHIFT) - 1)
826 /* VF use these macros to configure each protocol header.
827 * Specify which protocol headers and protocol header fields base on
828 * virtchnl_proto_hdr_type and virtchnl_proto_hdr_field.
829 * @param hdr: a struct of virtchnl_proto_hdr
830 * @param hdr_type: ETH/IPV4/TCP, etc
831 * @param field: SRC/DST/TEID/SPI, etc
833 #define VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr, field) \
834 ((hdr)->field_selector |= BIT((field) & PROTO_HDR_FIELD_MASK))
835 #define VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr, field) \
836 ((hdr)->field_selector &= ~BIT((field) & PROTO_HDR_FIELD_MASK))
837 #define VIRTCHNL_TEST_PROTO_HDR_FIELD(hdr, val) \
838 ((hdr)->field_selector & BIT((val) & PROTO_HDR_FIELD_MASK))
839 #define VIRTCHNL_GET_PROTO_HDR_FIELD(hdr) ((hdr)->field_selector)
841 #define VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, hdr_type, field) \
842 (VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr, \
843 VIRTCHNL_PROTO_HDR_ ## hdr_type ## _ ## field))
844 #define VIRTCHNL_DEL_PROTO_HDR_FIELD_BIT(hdr, hdr_type, field) \
845 (VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr, \
846 VIRTCHNL_PROTO_HDR_ ## hdr_type ## _ ## field))
848 #define VIRTCHNL_SET_PROTO_HDR_TYPE(hdr, hdr_type) \
849 ((hdr)->type = VIRTCHNL_PROTO_HDR_ ## hdr_type)
850 #define VIRTCHNL_GET_PROTO_HDR_TYPE(hdr) \
851 (((hdr)->type) >> PROTO_HDR_SHIFT)
852 #define VIRTCHNL_TEST_PROTO_HDR_TYPE(hdr, val) \
853 ((hdr)->type == ((val) >> PROTO_HDR_SHIFT))
854 #define VIRTCHNL_TEST_PROTO_HDR(hdr, val) \
855 (VIRTCHNL_TEST_PROTO_HDR_TYPE(hdr, val) && \
856 VIRTCHNL_TEST_PROTO_HDR_FIELD(hdr, val))
858 /* Protocol header type within a packet segment. A segment consists of one or
859 * more protocol headers that make up a logical group of protocol headers. Each
860 * logical group of protocol headers encapsulates or is encapsulated using/by
861 * tunneling or encapsulation protocols for network virtualization.
863 enum virtchnl_proto_hdr_type {
864 VIRTCHNL_PROTO_HDR_NONE,
865 VIRTCHNL_PROTO_HDR_ETH,
866 VIRTCHNL_PROTO_HDR_S_VLAN,
867 VIRTCHNL_PROTO_HDR_C_VLAN,
868 VIRTCHNL_PROTO_HDR_IPV4,
869 VIRTCHNL_PROTO_HDR_IPV6,
870 VIRTCHNL_PROTO_HDR_TCP,
871 VIRTCHNL_PROTO_HDR_UDP,
872 VIRTCHNL_PROTO_HDR_SCTP,
873 VIRTCHNL_PROTO_HDR_GTPU_IP,
874 VIRTCHNL_PROTO_HDR_GTPU_EH,
875 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
876 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
877 VIRTCHNL_PROTO_HDR_PPPOE,
878 VIRTCHNL_PROTO_HDR_L2TPV3,
879 VIRTCHNL_PROTO_HDR_ESP,
880 VIRTCHNL_PROTO_HDR_AH,
881 VIRTCHNL_PROTO_HDR_PFCP,
884 /* Protocol header field within a protocol header. */
885 enum virtchnl_proto_hdr_field {
887 VIRTCHNL_PROTO_HDR_ETH_SRC =
888 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ETH),
889 VIRTCHNL_PROTO_HDR_ETH_DST,
890 VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE,
892 VIRTCHNL_PROTO_HDR_S_VLAN_ID =
893 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_S_VLAN),
895 VIRTCHNL_PROTO_HDR_C_VLAN_ID =
896 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_C_VLAN),
898 VIRTCHNL_PROTO_HDR_IPV4_SRC =
899 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV4),
900 VIRTCHNL_PROTO_HDR_IPV4_DST,
901 VIRTCHNL_PROTO_HDR_IPV4_DSCP,
902 VIRTCHNL_PROTO_HDR_IPV4_TTL,
903 VIRTCHNL_PROTO_HDR_IPV4_PROT,
905 VIRTCHNL_PROTO_HDR_IPV6_SRC =
906 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV6),
907 VIRTCHNL_PROTO_HDR_IPV6_DST,
908 VIRTCHNL_PROTO_HDR_IPV6_TC,
909 VIRTCHNL_PROTO_HDR_IPV6_HOP_LIMIT,
910 VIRTCHNL_PROTO_HDR_IPV6_PROT,
912 VIRTCHNL_PROTO_HDR_TCP_SRC_PORT =
913 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_TCP),
914 VIRTCHNL_PROTO_HDR_TCP_DST_PORT,
916 VIRTCHNL_PROTO_HDR_UDP_SRC_PORT =
917 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_UDP),
918 VIRTCHNL_PROTO_HDR_UDP_DST_PORT,
920 VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT =
921 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_SCTP),
922 VIRTCHNL_PROTO_HDR_SCTP_DST_PORT,
924 VIRTCHNL_PROTO_HDR_GTPU_IP_TEID =
925 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_IP),
927 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU =
928 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_EH),
929 VIRTCHNL_PROTO_HDR_GTPU_EH_QFI,
931 VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID =
932 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_PPPOE),
934 VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID =
935 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_L2TPV3),
937 VIRTCHNL_PROTO_HDR_ESP_SPI =
938 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ESP),
940 VIRTCHNL_PROTO_HDR_AH_SPI =
941 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_AH),
943 VIRTCHNL_PROTO_HDR_PFCP_S_FIELD =
944 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_PFCP),
945 VIRTCHNL_PROTO_HDR_PFCP_SEID,
948 struct virtchnl_proto_hdr {
949 enum virtchnl_proto_hdr_type type;
950 u32 field_selector; /* a bit mask to select field for header type */
953 * binary buffer in network order for specific header type.
954 * For example, if type = VIRTCHNL_PROTO_HDR_IPV4, a IPv4
955 * header is expected to be copied into the buffer.
959 VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_proto_hdr);
961 struct virtchnl_proto_hdrs {
964 * specify where protocol header start from.
965 * 0 - from the outer layer
966 * 1 - from the first inner layer
967 * 2 - from the second inner layer
970 int count; /* the proto layers must < VIRTCHNL_MAX_NUM_PROTO_HDRS */
971 struct virtchnl_proto_hdr proto_hdr[VIRTCHNL_MAX_NUM_PROTO_HDRS];
974 VIRTCHNL_CHECK_STRUCT_LEN(2312, virtchnl_proto_hdrs);
976 struct virtchnl_rss_cfg {
977 struct virtchnl_proto_hdrs proto_hdrs; /* protocol headers */
978 enum virtchnl_rss_algorithm rss_algorithm; /* rss algorithm type */
979 u8 reserved[128]; /* reserve for future */
982 VIRTCHNL_CHECK_STRUCT_LEN(2444, virtchnl_rss_cfg);
984 /* action configuration for FDIR */
985 struct virtchnl_filter_action {
986 enum virtchnl_action type;
988 /* used for queue and qgroup action */
993 /* used for count action */
995 /* share counter ID with other flow rules */
997 u32 id; /* counter ID */
999 /* used for mark action */
1005 VIRTCHNL_CHECK_STRUCT_LEN(36, virtchnl_filter_action);
1007 #define VIRTCHNL_MAX_NUM_ACTIONS 8
1009 struct virtchnl_filter_action_set {
1010 /* action number must be less then VIRTCHNL_MAX_NUM_ACTIONS */
1012 struct virtchnl_filter_action actions[VIRTCHNL_MAX_NUM_ACTIONS];
1015 VIRTCHNL_CHECK_STRUCT_LEN(292, virtchnl_filter_action_set);
1017 /* pattern and action for FDIR rule */
1018 struct virtchnl_fdir_rule {
1019 struct virtchnl_proto_hdrs proto_hdrs;
1020 struct virtchnl_filter_action_set action_set;
1023 VIRTCHNL_CHECK_STRUCT_LEN(2604, virtchnl_fdir_rule);
1025 /* query information to retrieve fdir rule counters.
1026 * PF will fill out this structure to reset counter.
1028 struct virtchnl_fdir_query_info {
1029 u32 match_packets_valid:1;
1030 u32 match_bytes_valid:1;
1031 u32 reserved:30; /* Reserved, must be zero. */
1033 u64 matched_packets; /* Number of packets for this rule. */
1034 u64 matched_bytes; /* Number of bytes through this rule. */
1037 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_fdir_query_info);
1039 /* Status returned to VF after VF requests FDIR commands
1040 * VIRTCHNL_FDIR_SUCCESS
1041 * VF FDIR related request is successfully done by PF
1042 * The request can be OP_ADD/DEL/QUERY_FDIR_FILTER.
1044 * VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE
1045 * OP_ADD_FDIR_FILTER request is failed due to no Hardware resource.
1047 * VIRTCHNL_FDIR_FAILURE_RULE_EXIST
1048 * OP_ADD_FDIR_FILTER request is failed due to the rule is already existed.
1050 * VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT
1051 * OP_ADD_FDIR_FILTER request is failed due to conflict with existing rule.
1053 * VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST
1054 * OP_DEL_FDIR_FILTER request is failed due to this rule doesn't exist.
1056 * VIRTCHNL_FDIR_FAILURE_RULE_INVALID
1057 * OP_ADD_FDIR_FILTER request is failed due to parameters validation
1058 * or HW doesn't support.
1060 * VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT
1061 * OP_ADD/DEL_FDIR_FILTER request is failed due to timing out
1064 * VIRTCHNL_FDIR_FAILURE_QUERY_INVALID
1065 * OP_QUERY_FDIR_FILTER request is failed due to parameters validation,
1066 * for example, VF query counter of a rule who has no counter action.
1068 enum virtchnl_fdir_prgm_status {
1069 VIRTCHNL_FDIR_SUCCESS = 0,
1070 VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE,
1071 VIRTCHNL_FDIR_FAILURE_RULE_EXIST,
1072 VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT,
1073 VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST,
1074 VIRTCHNL_FDIR_FAILURE_RULE_INVALID,
1075 VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT,
1076 VIRTCHNL_FDIR_FAILURE_QUERY_INVALID,
1079 /* VIRTCHNL_OP_ADD_FDIR_FILTER
1080 * VF sends this request to PF by filling out vsi_id,
1081 * validate_only and rule_cfg. PF will return flow_id
1082 * if the request is successfully done and return add_status to VF.
1084 struct virtchnl_fdir_add {
1085 u16 vsi_id; /* INPUT */
1087 * 1 for validating a fdir rule, 0 for creating a fdir rule.
1088 * Validate and create share one ops: VIRTCHNL_OP_ADD_FDIR_FILTER.
1090 u16 validate_only; /* INPUT */
1091 u32 flow_id; /* OUTPUT */
1092 struct virtchnl_fdir_rule rule_cfg; /* INPUT */
1093 enum virtchnl_fdir_prgm_status status; /* OUTPUT */
1096 VIRTCHNL_CHECK_STRUCT_LEN(2616, virtchnl_fdir_add);
1098 /* VIRTCHNL_OP_DEL_FDIR_FILTER
1099 * VF sends this request to PF by filling out vsi_id
1100 * and flow_id. PF will return del_status to VF.
1102 struct virtchnl_fdir_del {
1103 u16 vsi_id; /* INPUT */
1105 u32 flow_id; /* INPUT */
1106 enum virtchnl_fdir_prgm_status status; /* OUTPUT */
1109 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_fdir_del);
1111 /* VIRTCHNL_OP_QUERY_FDIR_FILTER
1112 * VF sends this request to PF by filling out vsi_id,
1113 * flow_id and reset_counter. PF will return query_info
1114 * and query_status to VF.
1116 struct virtchnl_fdir_query {
1117 u16 vsi_id; /* INPUT */
1119 u32 flow_id; /* INPUT */
1120 u32 reset_counter:1; /* INPUT */
1121 struct virtchnl_fdir_query_info query_info; /* OUTPUT */
1122 enum virtchnl_fdir_prgm_status status; /* OUTPUT */
1126 VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_fdir_query);
1128 * virtchnl_vc_validate_vf_msg
1129 * @ver: Virtchnl version info
1130 * @v_opcode: Opcode for the message
1131 * @msg: pointer to the msg buffer
1132 * @msglen: msg length
1134 * validate msg format against struct for each opcode
1137 virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,
1138 u8 *msg, u16 msglen)
1140 bool err_msg_format = false;
1143 /* Validate message length. */
1145 case VIRTCHNL_OP_VERSION:
1146 valid_len = sizeof(struct virtchnl_version_info);
1148 case VIRTCHNL_OP_RESET_VF:
1150 case VIRTCHNL_OP_GET_VF_RESOURCES:
1152 valid_len = sizeof(u32);
1154 case VIRTCHNL_OP_CONFIG_TX_QUEUE:
1155 valid_len = sizeof(struct virtchnl_txq_info);
1157 case VIRTCHNL_OP_CONFIG_RX_QUEUE:
1158 valid_len = sizeof(struct virtchnl_rxq_info);
1160 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1161 valid_len = sizeof(struct virtchnl_vsi_queue_config_info);
1162 if (msglen >= valid_len) {
1163 struct virtchnl_vsi_queue_config_info *vqc =
1164 (struct virtchnl_vsi_queue_config_info *)msg;
1166 if (vqc->num_queue_pairs == 0 || vqc->num_queue_pairs >
1167 VIRTCHNL_OP_CONFIG_VSI_QUEUES_MAX) {
1168 err_msg_format = true;
1172 valid_len += (vqc->num_queue_pairs *
1174 virtchnl_queue_pair_info));
1177 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
1178 valid_len = sizeof(struct virtchnl_irq_map_info);
1179 if (msglen >= valid_len) {
1180 struct virtchnl_irq_map_info *vimi =
1181 (struct virtchnl_irq_map_info *)msg;
1183 if (vimi->num_vectors == 0 || vimi->num_vectors >
1184 VIRTCHNL_OP_CONFIG_IRQ_MAP_MAX) {
1185 err_msg_format = true;
1189 valid_len += (vimi->num_vectors *
1190 sizeof(struct virtchnl_vector_map));
1193 case VIRTCHNL_OP_ENABLE_QUEUES:
1194 case VIRTCHNL_OP_DISABLE_QUEUES:
1195 valid_len = sizeof(struct virtchnl_queue_select);
1197 case VIRTCHNL_OP_ADD_ETH_ADDR:
1198 case VIRTCHNL_OP_DEL_ETH_ADDR:
1199 valid_len = sizeof(struct virtchnl_ether_addr_list);
1200 if (msglen >= valid_len) {
1201 struct virtchnl_ether_addr_list *veal =
1202 (struct virtchnl_ether_addr_list *)msg;
1204 if (veal->num_elements == 0 || veal->num_elements >
1205 VIRTCHNL_OP_ADD_DEL_ETH_ADDR_MAX) {
1206 err_msg_format = true;
1210 valid_len += veal->num_elements *
1211 sizeof(struct virtchnl_ether_addr);
1214 case VIRTCHNL_OP_ADD_VLAN:
1215 case VIRTCHNL_OP_DEL_VLAN:
1216 valid_len = sizeof(struct virtchnl_vlan_filter_list);
1217 if (msglen >= valid_len) {
1218 struct virtchnl_vlan_filter_list *vfl =
1219 (struct virtchnl_vlan_filter_list *)msg;
1221 if (vfl->num_elements == 0 || vfl->num_elements >
1222 VIRTCHNL_OP_ADD_DEL_VLAN_MAX) {
1223 err_msg_format = true;
1227 valid_len += vfl->num_elements * sizeof(u16);
1230 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1231 valid_len = sizeof(struct virtchnl_promisc_info);
1233 case VIRTCHNL_OP_GET_STATS:
1234 valid_len = sizeof(struct virtchnl_queue_select);
1236 case VIRTCHNL_OP_CONFIG_RSS_KEY:
1237 valid_len = sizeof(struct virtchnl_rss_key);
1238 if (msglen >= valid_len) {
1239 struct virtchnl_rss_key *vrk =
1240 (struct virtchnl_rss_key *)msg;
1242 if (vrk->key_len == 0) {
1243 /* zero length is allowed as input */
1247 valid_len += vrk->key_len - 1;
1250 case VIRTCHNL_OP_CONFIG_RSS_LUT:
1251 valid_len = sizeof(struct virtchnl_rss_lut);
1252 if (msglen >= valid_len) {
1253 struct virtchnl_rss_lut *vrl =
1254 (struct virtchnl_rss_lut *)msg;
1256 if (vrl->lut_entries == 0) {
1257 /* zero entries is allowed as input */
1261 valid_len += vrl->lut_entries - 1;
1264 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
1266 case VIRTCHNL_OP_SET_RSS_HENA:
1267 valid_len = sizeof(struct virtchnl_rss_hena);
1269 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
1270 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
1272 case VIRTCHNL_OP_REQUEST_QUEUES:
1273 valid_len = sizeof(struct virtchnl_vf_res_request);
1275 case VIRTCHNL_OP_ENABLE_CHANNELS:
1276 valid_len = sizeof(struct virtchnl_tc_info);
1277 if (msglen >= valid_len) {
1278 struct virtchnl_tc_info *vti =
1279 (struct virtchnl_tc_info *)msg;
1281 if (vti->num_tc == 0 || vti->num_tc >
1282 VIRTCHNL_OP_ENABLE_CHANNELS_MAX) {
1283 err_msg_format = true;
1287 valid_len += (vti->num_tc - 1) *
1288 sizeof(struct virtchnl_channel_info);
1291 case VIRTCHNL_OP_DISABLE_CHANNELS:
1293 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
1294 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
1295 valid_len = sizeof(struct virtchnl_filter);
1297 case VIRTCHNL_OP_DCF_CMD_DESC:
1298 case VIRTCHNL_OP_DCF_CMD_BUFF:
1299 /* These two opcodes are specific to handle the AdminQ command,
1300 * so the validation needs to be done in PF's context.
1303 case VIRTCHNL_OP_DCF_DISABLE:
1304 case VIRTCHNL_OP_DCF_GET_VSI_MAP:
1305 /* The two opcodes are required by DCF without message buffer,
1306 * so the valid length keeps the default value 0.
1309 case VIRTCHNL_OP_DCF_GET_PKG_INFO:
1311 case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS:
1313 case VIRTCHNL_OP_ADD_RSS_CFG:
1314 case VIRTCHNL_OP_DEL_RSS_CFG:
1315 valid_len = sizeof(struct virtchnl_rss_cfg);
1317 case VIRTCHNL_OP_ADD_FDIR_FILTER:
1318 valid_len = sizeof(struct virtchnl_fdir_add);
1320 case VIRTCHNL_OP_DEL_FDIR_FILTER:
1321 valid_len = sizeof(struct virtchnl_fdir_del);
1323 case VIRTCHNL_OP_QUERY_FDIR_FILTER:
1324 valid_len = sizeof(struct virtchnl_fdir_query);
1326 /* These are always errors coming from the VF. */
1327 case VIRTCHNL_OP_EVENT:
1328 case VIRTCHNL_OP_UNKNOWN:
1330 return VIRTCHNL_STATUS_ERR_PARAM;
1332 /* few more checks */
1333 if (err_msg_format || valid_len != msglen)
1334 return VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH;
1338 #endif /* _VIRTCHNL_H_ */