1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2021 Intel Corporation
9 * This header file describes the Virtual Function (VF) - Physical Function
10 * (PF) communication protocol used by the drivers for all devices starting
11 * from our 40G product line
13 * Admin queue buffer usage:
14 * desc->opcode is always aqc_opc_send_msg_to_pf
15 * flags, retval, datalen, and data addr are all used normally.
16 * The Firmware copies the cookie fields when sending messages between the
17 * PF and VF, but uses all other fields internally. Due to this limitation,
18 * we must send all messages as "indirect", i.e. using an external buffer.
20 * All the VSI indexes are relative to the VF. Each VF can have maximum of
21 * three VSIs. All the queue indexes are relative to the VSI. Each VF can
22 * have a maximum of sixteen queues for all of its VSIs.
24 * The PF is required to return a status code in v_retval for all messages
25 * except RESET_VF, which does not require any response. The returned value
26 * is of virtchnl_status_code type, defined in the shared type.h.
28 * In general, VF driver initialization should roughly follow the order of
29 * these opcodes. The VF driver must first validate the API version of the
30 * PF driver, then request a reset, then get resources, then configure
31 * queues and interrupts. After these operations are complete, the VF
32 * driver may start its queues, optionally add MAC and VLAN filters, and
36 /* START GENERIC DEFINES
37 * Need to ensure the following enums and defines hold the same meaning and
38 * value in current and future projects
42 enum virtchnl_status_code {
43 VIRTCHNL_STATUS_SUCCESS = 0,
44 VIRTCHNL_STATUS_ERR_PARAM = -5,
45 VIRTCHNL_STATUS_ERR_NO_MEMORY = -18,
46 VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH = -38,
47 VIRTCHNL_STATUS_ERR_CQP_COMPL_ERROR = -39,
48 VIRTCHNL_STATUS_ERR_INVALID_VF_ID = -40,
49 VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR = -53,
50 VIRTCHNL_STATUS_ERR_NOT_SUPPORTED = -64,
53 /* Backward compatibility */
54 #define VIRTCHNL_ERR_PARAM VIRTCHNL_STATUS_ERR_PARAM
55 #define VIRTCHNL_STATUS_NOT_SUPPORTED VIRTCHNL_STATUS_ERR_NOT_SUPPORTED
57 #define VIRTCHNL_LINK_SPEED_2_5GB_SHIFT 0x0
58 #define VIRTCHNL_LINK_SPEED_100MB_SHIFT 0x1
59 #define VIRTCHNL_LINK_SPEED_1000MB_SHIFT 0x2
60 #define VIRTCHNL_LINK_SPEED_10GB_SHIFT 0x3
61 #define VIRTCHNL_LINK_SPEED_40GB_SHIFT 0x4
62 #define VIRTCHNL_LINK_SPEED_20GB_SHIFT 0x5
63 #define VIRTCHNL_LINK_SPEED_25GB_SHIFT 0x6
64 #define VIRTCHNL_LINK_SPEED_5GB_SHIFT 0x7
66 enum virtchnl_link_speed {
67 VIRTCHNL_LINK_SPEED_UNKNOWN = 0,
68 VIRTCHNL_LINK_SPEED_100MB = BIT(VIRTCHNL_LINK_SPEED_100MB_SHIFT),
69 VIRTCHNL_LINK_SPEED_1GB = BIT(VIRTCHNL_LINK_SPEED_1000MB_SHIFT),
70 VIRTCHNL_LINK_SPEED_10GB = BIT(VIRTCHNL_LINK_SPEED_10GB_SHIFT),
71 VIRTCHNL_LINK_SPEED_40GB = BIT(VIRTCHNL_LINK_SPEED_40GB_SHIFT),
72 VIRTCHNL_LINK_SPEED_20GB = BIT(VIRTCHNL_LINK_SPEED_20GB_SHIFT),
73 VIRTCHNL_LINK_SPEED_25GB = BIT(VIRTCHNL_LINK_SPEED_25GB_SHIFT),
74 VIRTCHNL_LINK_SPEED_2_5GB = BIT(VIRTCHNL_LINK_SPEED_2_5GB_SHIFT),
75 VIRTCHNL_LINK_SPEED_5GB = BIT(VIRTCHNL_LINK_SPEED_5GB_SHIFT),
78 /* for hsplit_0 field of Rx HMC context */
79 /* deprecated with IAVF 1.0 */
80 enum virtchnl_rx_hsplit {
81 VIRTCHNL_RX_HSPLIT_NO_SPLIT = 0,
82 VIRTCHNL_RX_HSPLIT_SPLIT_L2 = 1,
83 VIRTCHNL_RX_HSPLIT_SPLIT_IP = 2,
84 VIRTCHNL_RX_HSPLIT_SPLIT_TCP_UDP = 4,
85 VIRTCHNL_RX_HSPLIT_SPLIT_SCTP = 8,
88 #define VIRTCHNL_ETH_LENGTH_OF_ADDRESS 6
89 /* END GENERIC DEFINES */
91 /* Opcodes for VF-PF communication. These are placed in the v_opcode field
92 * of the virtchnl_msg structure.
95 /* The PF sends status change events to VFs using
96 * the VIRTCHNL_OP_EVENT opcode.
97 * VFs send requests to the PF using the other ops.
98 * Use of "advanced opcode" features must be negotiated as part of capabilities
99 * exchange and are not considered part of base mode feature set.
101 VIRTCHNL_OP_UNKNOWN = 0,
102 VIRTCHNL_OP_VERSION = 1, /* must ALWAYS be 1 */
103 VIRTCHNL_OP_RESET_VF = 2,
104 VIRTCHNL_OP_GET_VF_RESOURCES = 3,
105 VIRTCHNL_OP_CONFIG_TX_QUEUE = 4,
106 VIRTCHNL_OP_CONFIG_RX_QUEUE = 5,
107 VIRTCHNL_OP_CONFIG_VSI_QUEUES = 6,
108 VIRTCHNL_OP_CONFIG_IRQ_MAP = 7,
109 VIRTCHNL_OP_ENABLE_QUEUES = 8,
110 VIRTCHNL_OP_DISABLE_QUEUES = 9,
111 VIRTCHNL_OP_ADD_ETH_ADDR = 10,
112 VIRTCHNL_OP_DEL_ETH_ADDR = 11,
113 VIRTCHNL_OP_ADD_VLAN = 12,
114 VIRTCHNL_OP_DEL_VLAN = 13,
115 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE = 14,
116 VIRTCHNL_OP_GET_STATS = 15,
117 VIRTCHNL_OP_RSVD = 16,
118 VIRTCHNL_OP_EVENT = 17, /* must ALWAYS be 17 */
119 /* opcode 19 is reserved */
120 /* opcodes 20, 21, and 22 are reserved */
121 VIRTCHNL_OP_CONFIG_RSS_KEY = 23,
122 VIRTCHNL_OP_CONFIG_RSS_LUT = 24,
123 VIRTCHNL_OP_GET_RSS_HENA_CAPS = 25,
124 VIRTCHNL_OP_SET_RSS_HENA = 26,
125 VIRTCHNL_OP_ENABLE_VLAN_STRIPPING = 27,
126 VIRTCHNL_OP_DISABLE_VLAN_STRIPPING = 28,
127 VIRTCHNL_OP_REQUEST_QUEUES = 29,
128 VIRTCHNL_OP_ENABLE_CHANNELS = 30,
129 VIRTCHNL_OP_DISABLE_CHANNELS = 31,
130 VIRTCHNL_OP_ADD_CLOUD_FILTER = 32,
131 VIRTCHNL_OP_DEL_CLOUD_FILTER = 33,
132 /* opcodes 34, 35, 36, and 37 are reserved */
133 VIRTCHNL_OP_DCF_VLAN_OFFLOAD = 38,
134 VIRTCHNL_OP_DCF_CMD_DESC = 39,
135 VIRTCHNL_OP_DCF_CMD_BUFF = 40,
136 VIRTCHNL_OP_DCF_DISABLE = 41,
137 VIRTCHNL_OP_DCF_GET_VSI_MAP = 42,
138 VIRTCHNL_OP_DCF_GET_PKG_INFO = 43,
139 VIRTCHNL_OP_GET_SUPPORTED_RXDIDS = 44,
140 VIRTCHNL_OP_ADD_RSS_CFG = 45,
141 VIRTCHNL_OP_DEL_RSS_CFG = 46,
142 VIRTCHNL_OP_ADD_FDIR_FILTER = 47,
143 VIRTCHNL_OP_DEL_FDIR_FILTER = 48,
144 VIRTCHNL_OP_QUERY_FDIR_FILTER = 49,
145 VIRTCHNL_OP_GET_MAX_RSS_QREGION = 50,
146 VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS = 51,
147 VIRTCHNL_OP_ADD_VLAN_V2 = 52,
148 VIRTCHNL_OP_DEL_VLAN_V2 = 53,
149 VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 = 54,
150 VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2 = 55,
151 VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2 = 56,
152 VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2 = 57,
153 VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2 = 58,
154 VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2 = 59,
155 VIRTCHNL_OP_ENABLE_QUEUES_V2 = 107,
156 VIRTCHNL_OP_DISABLE_QUEUES_V2 = 108,
157 VIRTCHNL_OP_MAP_QUEUE_VECTOR = 111,
161 static inline const char *virtchnl_op_str(enum virtchnl_ops v_opcode)
164 case VIRTCHNL_OP_UNKNOWN:
165 return "VIRTCHNL_OP_UNKNOWN";
166 case VIRTCHNL_OP_VERSION:
167 return "VIRTCHNL_OP_VERSION";
168 case VIRTCHNL_OP_RESET_VF:
169 return "VIRTCHNL_OP_RESET_VF";
170 case VIRTCHNL_OP_GET_VF_RESOURCES:
171 return "VIRTCHNL_OP_GET_VF_RESOURCES";
172 case VIRTCHNL_OP_CONFIG_TX_QUEUE:
173 return "VIRTCHNL_OP_CONFIG_TX_QUEUE";
174 case VIRTCHNL_OP_CONFIG_RX_QUEUE:
175 return "VIRTCHNL_OP_CONFIG_RX_QUEUE";
176 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
177 return "VIRTCHNL_OP_CONFIG_VSI_QUEUES";
178 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
179 return "VIRTCHNL_OP_CONFIG_IRQ_MAP";
180 case VIRTCHNL_OP_ENABLE_QUEUES:
181 return "VIRTCHNL_OP_ENABLE_QUEUES";
182 case VIRTCHNL_OP_DISABLE_QUEUES:
183 return "VIRTCHNL_OP_DISABLE_QUEUES";
184 case VIRTCHNL_OP_ADD_ETH_ADDR:
185 return "VIRTCHNL_OP_ADD_ETH_ADDR";
186 case VIRTCHNL_OP_DEL_ETH_ADDR:
187 return "VIRTCHNL_OP_DEL_ETH_ADDR";
188 case VIRTCHNL_OP_ADD_VLAN:
189 return "VIRTCHNL_OP_ADD_VLAN";
190 case VIRTCHNL_OP_DEL_VLAN:
191 return "VIRTCHNL_OP_DEL_VLAN";
192 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
193 return "VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE";
194 case VIRTCHNL_OP_GET_STATS:
195 return "VIRTCHNL_OP_GET_STATS";
196 case VIRTCHNL_OP_RSVD:
197 return "VIRTCHNL_OP_RSVD";
198 case VIRTCHNL_OP_EVENT:
199 return "VIRTCHNL_OP_EVENT";
200 case VIRTCHNL_OP_CONFIG_RSS_KEY:
201 return "VIRTCHNL_OP_CONFIG_RSS_KEY";
202 case VIRTCHNL_OP_CONFIG_RSS_LUT:
203 return "VIRTCHNL_OP_CONFIG_RSS_LUT";
204 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
205 return "VIRTCHNL_OP_GET_RSS_HENA_CAPS";
206 case VIRTCHNL_OP_SET_RSS_HENA:
207 return "VIRTCHNL_OP_SET_RSS_HENA";
208 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
209 return "VIRTCHNL_OP_ENABLE_VLAN_STRIPPING";
210 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
211 return "VIRTCHNL_OP_DISABLE_VLAN_STRIPPING";
212 case VIRTCHNL_OP_REQUEST_QUEUES:
213 return "VIRTCHNL_OP_REQUEST_QUEUES";
214 case VIRTCHNL_OP_ENABLE_CHANNELS:
215 return "VIRTCHNL_OP_ENABLE_CHANNELS";
216 case VIRTCHNL_OP_DISABLE_CHANNELS:
217 return "VIRTCHNL_OP_DISABLE_CHANNELS";
218 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
219 return "VIRTCHNL_OP_ADD_CLOUD_FILTER";
220 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
221 return "VIRTCHNL_OP_DEL_CLOUD_FILTER";
222 case VIRTCHNL_OP_DCF_CMD_DESC:
223 return "VIRTCHNL_OP_DCF_CMD_DESC";
224 case VIRTCHNL_OP_DCF_CMD_BUFF:
225 return "VIRTCHHNL_OP_DCF_CMD_BUFF";
226 case VIRTCHNL_OP_DCF_DISABLE:
227 return "VIRTCHNL_OP_DCF_DISABLE";
228 case VIRTCHNL_OP_DCF_GET_VSI_MAP:
229 return "VIRTCHNL_OP_DCF_GET_VSI_MAP";
230 case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS:
231 return "VIRTCHNL_OP_GET_SUPPORTED_RXDIDS";
232 case VIRTCHNL_OP_ADD_RSS_CFG:
233 return "VIRTCHNL_OP_ADD_RSS_CFG";
234 case VIRTCHNL_OP_DEL_RSS_CFG:
235 return "VIRTCHNL_OP_DEL_RSS_CFG";
236 case VIRTCHNL_OP_ADD_FDIR_FILTER:
237 return "VIRTCHNL_OP_ADD_FDIR_FILTER";
238 case VIRTCHNL_OP_DEL_FDIR_FILTER:
239 return "VIRTCHNL_OP_DEL_FDIR_FILTER";
240 case VIRTCHNL_OP_QUERY_FDIR_FILTER:
241 return "VIRTCHNL_OP_QUERY_FDIR_FILTER";
242 case VIRTCHNL_OP_GET_MAX_RSS_QREGION:
243 return "VIRTCHNL_OP_GET_MAX_RSS_QREGION";
244 case VIRTCHNL_OP_ENABLE_QUEUES_V2:
245 return "VIRTCHNL_OP_ENABLE_QUEUES_V2";
246 case VIRTCHNL_OP_DISABLE_QUEUES_V2:
247 return "VIRTCHNL_OP_DISABLE_QUEUES_V2";
248 case VIRTCHNL_OP_MAP_QUEUE_VECTOR:
249 return "VIRTCHNL_OP_MAP_QUEUE_VECTOR";
250 case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
251 return "VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS";
252 case VIRTCHNL_OP_ADD_VLAN_V2:
253 return "VIRTCHNL_OP_ADD_VLAN_V2";
254 case VIRTCHNL_OP_DEL_VLAN_V2:
255 return "VIRTCHNL_OP_DEL_VLAN_V2";
256 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
257 return "VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2";
258 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
259 return "VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2";
260 case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
261 return "VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2";
262 case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
263 return "VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2";
264 case VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2:
265 return "VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2";
266 case VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2:
267 return "VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2";
268 case VIRTCHNL_OP_MAX:
269 return "VIRTCHNL_OP_MAX";
271 return "Unsupported (update virtchnl.h)";
275 /* These macros are used to generate compilation errors if a structure/union
276 * is not exactly the correct length. It gives a divide by zero error if the
277 * structure/union is not of the correct size, otherwise it creates an enum
278 * that is never used.
280 #define VIRTCHNL_CHECK_STRUCT_LEN(n, X) enum virtchnl_static_assert_enum_##X \
281 { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) }
282 #define VIRTCHNL_CHECK_UNION_LEN(n, X) enum virtchnl_static_asset_enum_##X \
283 { virtchnl_static_assert_##X = (n)/((sizeof(union X) == (n)) ? 1 : 0) }
285 /* Virtual channel message descriptor. This overlays the admin queue
286 * descriptor. All other data is passed in external buffers.
289 struct virtchnl_msg {
290 u8 pad[8]; /* AQ flags/opcode/len/retval fields */
292 /* avoid confusion with desc->opcode */
293 enum virtchnl_ops v_opcode;
295 /* ditto for desc->retval */
296 enum virtchnl_status_code v_retval;
297 u32 vfid; /* used by PF when sending to VF */
300 VIRTCHNL_CHECK_STRUCT_LEN(20, virtchnl_msg);
302 /* Message descriptions and data structures. */
304 /* VIRTCHNL_OP_VERSION
305 * VF posts its version number to the PF. PF responds with its version number
306 * in the same format, along with a return code.
307 * Reply from PF has its major/minor versions also in param0 and param1.
308 * If there is a major version mismatch, then the VF cannot operate.
309 * If there is a minor version mismatch, then the VF can operate but should
310 * add a warning to the system log.
312 * This enum element MUST always be specified as == 1, regardless of other
313 * changes in the API. The PF must always respond to this message without
314 * error regardless of version mismatch.
316 #define VIRTCHNL_VERSION_MAJOR 1
317 #define VIRTCHNL_VERSION_MINOR 1
318 #define VIRTCHNL_VERSION_MINOR_NO_VF_CAPS 0
320 struct virtchnl_version_info {
325 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_version_info);
327 #define VF_IS_V10(_v) (((_v)->major == 1) && ((_v)->minor == 0))
328 #define VF_IS_V11(_ver) (((_ver)->major == 1) && ((_ver)->minor == 1))
330 /* VIRTCHNL_OP_RESET_VF
331 * VF sends this request to PF with no parameters
332 * PF does NOT respond! VF driver must delay then poll VFGEN_RSTAT register
333 * until reset completion is indicated. The admin queue must be reinitialized
334 * after this operation.
336 * When reset is complete, PF must ensure that all queues in all VSIs associated
337 * with the VF are stopped, all queue configurations in the HMC are set to 0,
338 * and all MAC and VLAN filters (except the default MAC address) on all VSIs
342 /* VSI types that use VIRTCHNL interface for VF-PF communication. VSI_SRIOV
343 * vsi_type should always be 6 for backward compatibility. Add other fields
346 enum virtchnl_vsi_type {
347 VIRTCHNL_VSI_TYPE_INVALID = 0,
348 VIRTCHNL_VSI_SRIOV = 6,
351 /* VIRTCHNL_OP_GET_VF_RESOURCES
352 * Version 1.0 VF sends this request to PF with no parameters
353 * Version 1.1 VF sends this request to PF with u32 bitmap of its capabilities
354 * PF responds with an indirect message containing
355 * virtchnl_vf_resource and one or more
356 * virtchnl_vsi_resource structures.
359 struct virtchnl_vsi_resource {
363 /* see enum virtchnl_vsi_type */
366 u8 default_mac_addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
369 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
371 /* VF capability flags
372 * VIRTCHNL_VF_OFFLOAD_L2 flag is inclusive of base mode L2 offloads including
373 * TX/RX Checksum offloading and TSO for non-tunnelled packets.
375 #define VIRTCHNL_VF_OFFLOAD_L2 BIT(0)
376 #define VIRTCHNL_VF_OFFLOAD_IWARP BIT(1)
377 #define VIRTCHNL_VF_OFFLOAD_RSVD BIT(2)
378 #define VIRTCHNL_VF_OFFLOAD_RSS_AQ BIT(3)
379 #define VIRTCHNL_VF_OFFLOAD_RSS_REG BIT(4)
380 #define VIRTCHNL_VF_OFFLOAD_WB_ON_ITR BIT(5)
381 #define VIRTCHNL_VF_OFFLOAD_REQ_QUEUES BIT(6)
382 /* used to negotiate communicating link speeds in Mbps */
383 #define VIRTCHNL_VF_CAP_ADV_LINK_SPEED BIT(7)
384 /* BIT(8) is reserved */
385 #define VIRTCHNL_VF_LARGE_NUM_QPAIRS BIT(9)
386 #define VIRTCHNL_VF_OFFLOAD_CRC BIT(10)
387 #define VIRTCHNL_VF_OFFLOAD_VLAN_V2 BIT(15)
388 #define VIRTCHNL_VF_OFFLOAD_VLAN BIT(16)
389 #define VIRTCHNL_VF_OFFLOAD_RX_POLLING BIT(17)
390 #define VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 BIT(18)
391 #define VIRTCHNL_VF_OFFLOAD_RSS_PF BIT(19)
392 #define VIRTCHNL_VF_OFFLOAD_ENCAP BIT(20)
393 #define VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM BIT(21)
394 #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM BIT(22)
395 #define VIRTCHNL_VF_OFFLOAD_ADQ BIT(23)
396 #define VIRTCHNL_VF_OFFLOAD_ADQ_V2 BIT(24)
397 #define VIRTCHNL_VF_OFFLOAD_USO BIT(25)
398 #define VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC BIT(26)
399 #define VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF BIT(27)
400 #define VIRTCHNL_VF_OFFLOAD_FDIR_PF BIT(28)
401 #define VIRTCHNL_VF_CAP_DCF BIT(30)
402 /* BIT(31) is reserved */
404 #define VF_BASE_MODE_OFFLOADS (VIRTCHNL_VF_OFFLOAD_L2 | \
405 VIRTCHNL_VF_OFFLOAD_VLAN | \
406 VIRTCHNL_VF_OFFLOAD_RSS_PF)
408 struct virtchnl_vf_resource {
418 struct virtchnl_vsi_resource vsi_res[1];
421 VIRTCHNL_CHECK_STRUCT_LEN(36, virtchnl_vf_resource);
423 /* VIRTCHNL_OP_CONFIG_TX_QUEUE
424 * VF sends this message to set up parameters for one TX queue.
425 * External data buffer contains one instance of virtchnl_txq_info.
426 * PF configures requested queue and returns a status code.
429 /* Tx queue config info */
430 struct virtchnl_txq_info {
433 u16 ring_len; /* number of descriptors, multiple of 8 */
434 u16 headwb_enabled; /* deprecated with AVF 1.0 */
436 u64 dma_headwb_addr; /* deprecated with AVF 1.0 */
439 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_txq_info);
441 /* RX descriptor IDs (range from 0 to 63) */
442 enum virtchnl_rx_desc_ids {
443 VIRTCHNL_RXDID_0_16B_BASE = 0,
444 /* 32B_BASE and FLEX_SPLITQ share desc ids as default descriptors
445 * because they can be differentiated based on queue model; e.g. single
446 * queue model can only use 32B_BASE and split queue model can only use
447 * FLEX_SPLITQ. Having these as 1 allows them to be used as default
448 * descriptors without negotiation.
450 VIRTCHNL_RXDID_1_32B_BASE = 1,
451 VIRTCHNL_RXDID_1_FLEX_SPLITQ = 1,
452 VIRTCHNL_RXDID_2_FLEX_SQ_NIC = 2,
453 VIRTCHNL_RXDID_3_FLEX_SQ_SW = 3,
454 VIRTCHNL_RXDID_4_FLEX_SQ_NIC_VEB = 4,
455 VIRTCHNL_RXDID_5_FLEX_SQ_NIC_ACL = 5,
456 VIRTCHNL_RXDID_6_FLEX_SQ_NIC_2 = 6,
457 VIRTCHNL_RXDID_7_HW_RSVD = 7,
458 /* 9 through 15 are reserved */
459 VIRTCHNL_RXDID_16_COMMS_GENERIC = 16,
460 VIRTCHNL_RXDID_17_COMMS_AUX_VLAN = 17,
461 VIRTCHNL_RXDID_18_COMMS_AUX_IPV4 = 18,
462 VIRTCHNL_RXDID_19_COMMS_AUX_IPV6 = 19,
463 VIRTCHNL_RXDID_20_COMMS_AUX_FLOW = 20,
464 VIRTCHNL_RXDID_21_COMMS_AUX_TCP = 21,
465 /* 22 through 63 are reserved */
468 /* RX descriptor ID bitmasks */
469 enum virtchnl_rx_desc_id_bitmasks {
470 VIRTCHNL_RXDID_0_16B_BASE_M = BIT(VIRTCHNL_RXDID_0_16B_BASE),
471 VIRTCHNL_RXDID_1_32B_BASE_M = BIT(VIRTCHNL_RXDID_1_32B_BASE),
472 VIRTCHNL_RXDID_1_FLEX_SPLITQ_M = BIT(VIRTCHNL_RXDID_1_FLEX_SPLITQ),
473 VIRTCHNL_RXDID_2_FLEX_SQ_NIC_M = BIT(VIRTCHNL_RXDID_2_FLEX_SQ_NIC),
474 VIRTCHNL_RXDID_3_FLEX_SQ_SW_M = BIT(VIRTCHNL_RXDID_3_FLEX_SQ_SW),
475 VIRTCHNL_RXDID_4_FLEX_SQ_NIC_VEB_M = BIT(VIRTCHNL_RXDID_4_FLEX_SQ_NIC_VEB),
476 VIRTCHNL_RXDID_5_FLEX_SQ_NIC_ACL_M = BIT(VIRTCHNL_RXDID_5_FLEX_SQ_NIC_ACL),
477 VIRTCHNL_RXDID_6_FLEX_SQ_NIC_2_M = BIT(VIRTCHNL_RXDID_6_FLEX_SQ_NIC_2),
478 VIRTCHNL_RXDID_7_HW_RSVD_M = BIT(VIRTCHNL_RXDID_7_HW_RSVD),
479 /* 9 through 15 are reserved */
480 VIRTCHNL_RXDID_16_COMMS_GENERIC_M = BIT(VIRTCHNL_RXDID_16_COMMS_GENERIC),
481 VIRTCHNL_RXDID_17_COMMS_AUX_VLAN_M = BIT(VIRTCHNL_RXDID_17_COMMS_AUX_VLAN),
482 VIRTCHNL_RXDID_18_COMMS_AUX_IPV4_M = BIT(VIRTCHNL_RXDID_18_COMMS_AUX_IPV4),
483 VIRTCHNL_RXDID_19_COMMS_AUX_IPV6_M = BIT(VIRTCHNL_RXDID_19_COMMS_AUX_IPV6),
484 VIRTCHNL_RXDID_20_COMMS_AUX_FLOW_M = BIT(VIRTCHNL_RXDID_20_COMMS_AUX_FLOW),
485 VIRTCHNL_RXDID_21_COMMS_AUX_TCP_M = BIT(VIRTCHNL_RXDID_21_COMMS_AUX_TCP),
486 /* 22 through 63 are reserved */
489 /* VIRTCHNL_OP_CONFIG_RX_QUEUE
490 * VF sends this message to set up parameters for one RX queue.
491 * External data buffer contains one instance of virtchnl_rxq_info.
492 * PF configures requested queue and returns a status code. The
493 * crc_disable flag disables CRC stripping on the VF. Setting
494 * the crc_disable flag to 1 will disable CRC stripping for each
495 * queue in the VF where the flag is set. The VIRTCHNL_VF_OFFLOAD_CRC
496 * offload must have been set prior to sending this info or the PF
497 * will ignore the request. This flag should be set the same for
498 * all of the queues for a VF.
501 /* Rx queue config info */
502 struct virtchnl_rxq_info {
505 u32 ring_len; /* number of descriptors, multiple of 32 */
507 u16 splithdr_enabled; /* deprecated with AVF 1.0 */
511 /* see enum virtchnl_rx_desc_ids;
512 * only used when VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC is supported. Note
513 * that when the offload is not supported, the descriptor format aligns
514 * with VIRTCHNL_RXDID_1_32B_BASE.
520 /* see enum virtchnl_rx_hsplit; deprecated with AVF 1.0 */
525 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_rxq_info);
527 /* VIRTCHNL_OP_CONFIG_VSI_QUEUES
528 * VF sends this message to set parameters for active TX and RX queues
529 * associated with the specified VSI.
530 * PF configures queues and returns status.
531 * If the number of queues specified is greater than the number of queues
532 * associated with the VSI, an error is returned and no queues are configured.
533 * NOTE: The VF is not required to configure all queues in a single request.
534 * It may send multiple messages. PF drivers must correctly handle all VF
537 struct virtchnl_queue_pair_info {
538 /* NOTE: vsi_id and queue_id should be identical for both queues. */
539 struct virtchnl_txq_info txq;
540 struct virtchnl_rxq_info rxq;
543 VIRTCHNL_CHECK_STRUCT_LEN(64, virtchnl_queue_pair_info);
545 struct virtchnl_vsi_queue_config_info {
549 struct virtchnl_queue_pair_info qpair[1];
552 VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_vsi_queue_config_info);
554 /* VIRTCHNL_OP_REQUEST_QUEUES
555 * VF sends this message to request the PF to allocate additional queues to
556 * this VF. Each VF gets a guaranteed number of queues on init but asking for
557 * additional queues must be negotiated. This is a best effort request as it
558 * is possible the PF does not have enough queues left to support the request.
559 * If the PF cannot support the number requested it will respond with the
560 * maximum number it is able to support. If the request is successful, PF will
561 * then reset the VF to institute required changes.
564 /* VF resource request */
565 struct virtchnl_vf_res_request {
569 /* VIRTCHNL_OP_CONFIG_IRQ_MAP
570 * VF uses this message to map vectors to queues.
571 * The rxq_map and txq_map fields are bitmaps used to indicate which queues
572 * are to be associated with the specified vector.
573 * The "other" causes are always mapped to vector 0. The VF may not request
574 * that vector 0 be used for traffic.
575 * PF configures interrupt mapping and returns status.
576 * NOTE: due to hardware requirements, all active queues (both TX and RX)
577 * should be mapped to interrupts, even if the driver intends to operate
578 * only in polling mode. In this case the interrupt may be disabled, but
579 * the ITR timer will still run to trigger writebacks.
581 struct virtchnl_vector_map {
590 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_vector_map);
592 struct virtchnl_irq_map_info {
594 struct virtchnl_vector_map vecmap[1];
597 VIRTCHNL_CHECK_STRUCT_LEN(14, virtchnl_irq_map_info);
599 /* VIRTCHNL_OP_ENABLE_QUEUES
600 * VIRTCHNL_OP_DISABLE_QUEUES
601 * VF sends these message to enable or disable TX/RX queue pairs.
602 * The queues fields are bitmaps indicating which queues to act upon.
603 * (Currently, we only support 16 queues per VF, but we make the field
604 * u32 to allow for expansion.)
605 * PF performs requested action and returns status.
606 * NOTE: The VF is not required to enable/disable all queues in a single
607 * request. It may send multiple messages.
608 * PF drivers must correctly handle all VF requests.
610 struct virtchnl_queue_select {
617 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_select);
619 /* VIRTCHNL_OP_GET_MAX_RSS_QREGION
621 * if VIRTCHNL_VF_LARGE_NUM_QPAIRS was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
622 * then this op must be supported.
624 * VF sends this message in order to query the max RSS queue region
625 * size supported by PF, when VIRTCHNL_VF_LARGE_NUM_QPAIRS is enabled.
626 * This information should be used when configuring the RSS LUT and/or
627 * configuring queue region based filters.
629 * The maximum RSS queue region is 2^qregion_width. So, a qregion_width
630 * of 6 would inform the VF that the PF supports a maximum RSS queue region
633 * A queue region represents a range of queues that can be used to configure
634 * a RSS LUT. For example, if a VF is given 64 queues, but only a max queue
635 * region size of 16 (i.e. 2^qregion_width = 16) then it will only be able
636 * to configure the RSS LUT with queue indices from 0 to 15. However, other
637 * filters can be used to direct packets to queues >15 via specifying a queue
638 * base/offset and queue region width.
640 struct virtchnl_max_rss_qregion {
646 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_max_rss_qregion);
648 /* VIRTCHNL_OP_ADD_ETH_ADDR
649 * VF sends this message in order to add one or more unicast or multicast
650 * address filters for the specified VSI.
651 * PF adds the filters and returns status.
654 /* VIRTCHNL_OP_DEL_ETH_ADDR
655 * VF sends this message in order to remove one or more unicast or multicast
656 * filters for the specified VSI.
657 * PF removes the filters and returns status.
660 /* VIRTCHNL_ETHER_ADDR_LEGACY
661 * Prior to adding the @type member to virtchnl_ether_addr, there were 2 pad
662 * bytes. Moving forward all VF drivers should not set type to
663 * VIRTCHNL_ETHER_ADDR_LEGACY. This is only here to not break previous/legacy
664 * behavior. The control plane function (i.e. PF) can use a best effort method
665 * of tracking the primary/device unicast in this case, but there is no
666 * guarantee and functionality depends on the implementation of the PF.
669 /* VIRTCHNL_ETHER_ADDR_PRIMARY
670 * All VF drivers should set @type to VIRTCHNL_ETHER_ADDR_PRIMARY for the
671 * primary/device unicast MAC address filter for VIRTCHNL_OP_ADD_ETH_ADDR and
672 * VIRTCHNL_OP_DEL_ETH_ADDR. This allows for the underlying control plane
673 * function (i.e. PF) to accurately track and use this MAC address for
674 * displaying on the host and for VM/function reset.
677 /* VIRTCHNL_ETHER_ADDR_EXTRA
678 * All VF drivers should set @type to VIRTCHNL_ETHER_ADDR_EXTRA for any extra
679 * unicast and/or multicast filters that are being added/deleted via
680 * VIRTCHNL_OP_DEL_ETH_ADDR/VIRTCHNL_OP_ADD_ETH_ADDR respectively.
682 struct virtchnl_ether_addr {
683 u8 addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
685 #define VIRTCHNL_ETHER_ADDR_LEGACY 0
686 #define VIRTCHNL_ETHER_ADDR_PRIMARY 1
687 #define VIRTCHNL_ETHER_ADDR_EXTRA 2
688 #define VIRTCHNL_ETHER_ADDR_TYPE_MASK 3 /* first two bits of type are valid */
692 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_ether_addr);
694 struct virtchnl_ether_addr_list {
697 struct virtchnl_ether_addr list[1];
700 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_ether_addr_list);
702 /* VIRTCHNL_OP_ADD_VLAN
703 * VF sends this message to add one or more VLAN tag filters for receives.
704 * PF adds the filters and returns status.
705 * If a port VLAN is configured by the PF, this operation will return an
709 /* VIRTCHNL_OP_DEL_VLAN
710 * VF sends this message to remove one or more VLAN tag filters for receives.
711 * PF removes the filters and returns status.
712 * If a port VLAN is configured by the PF, this operation will return an
716 struct virtchnl_vlan_filter_list {
722 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_vlan_filter_list);
724 /* This enum is used for all of the VIRTCHNL_VF_OFFLOAD_VLAN_V2_CAPS related
725 * structures and opcodes.
727 * VIRTCHNL_VLAN_UNSUPPORTED - This field is not supported and if a VF driver
728 * populates it the PF should return VIRTCHNL_STATUS_ERR_NOT_SUPPORTED.
730 * VIRTCHNL_VLAN_ETHERTYPE_8100 - This field supports 0x8100 ethertype.
731 * VIRTCHNL_VLAN_ETHERTYPE_88A8 - This field supports 0x88A8 ethertype.
732 * VIRTCHNL_VLAN_ETHERTYPE_9100 - This field supports 0x9100 ethertype.
734 * VIRTCHNL_VLAN_ETHERTYPE_AND - Used when multiple ethertypes can be supported
735 * by the PF concurrently. For example, if the PF can support
736 * VIRTCHNL_VLAN_ETHERTYPE_8100 AND VIRTCHNL_VLAN_ETHERTYPE_88A8 filters it
737 * would OR the following bits:
739 * VIRTHCNL_VLAN_ETHERTYPE_8100 |
740 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
741 * VIRTCHNL_VLAN_ETHERTYPE_AND;
743 * The VF would interpret this as VLAN filtering can be supported on both 0x8100
744 * and 0x88A8 VLAN ethertypes.
746 * VIRTCHNL_ETHERTYPE_XOR - Used when only a single ethertype can be supported
747 * by the PF concurrently. For example if the PF can support
748 * VIRTCHNL_VLAN_ETHERTYPE_8100 XOR VIRTCHNL_VLAN_ETHERTYPE_88A8 stripping
749 * offload it would OR the following bits:
751 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
752 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
753 * VIRTCHNL_VLAN_ETHERTYPE_XOR;
755 * The VF would interpret this as VLAN stripping can be supported on either
756 * 0x8100 or 0x88a8 VLAN ethertypes. So when requesting VLAN stripping via
757 * VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 the specified ethertype will override
758 * the previously set value.
760 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1 - Used to tell the VF to insert and/or
761 * strip the VLAN tag using the L2TAG1 field of the Tx/Rx descriptors.
763 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2 - Used to tell the VF to insert hardware
764 * offloaded VLAN tags using the L2TAG2 field of the Tx descriptor.
766 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2 - Used to tell the VF to strip hardware
767 * offloaded VLAN tags using the L2TAG2_2 field of the Rx descriptor.
769 * VIRTCHNL_VLAN_PRIO - This field supports VLAN priority bits. This is used for
770 * VLAN filtering if the underlying PF supports it.
772 * VIRTCHNL_VLAN_TOGGLE_ALLOWED - This field is used to say whether a
773 * certain VLAN capability can be toggled. For example if the underlying PF/CP
774 * allows the VF to toggle VLAN filtering, stripping, and/or insertion it should
775 * set this bit along with the supported ethertypes.
777 enum virtchnl_vlan_support {
778 VIRTCHNL_VLAN_UNSUPPORTED = 0,
779 VIRTCHNL_VLAN_ETHERTYPE_8100 = 0x00000001,
780 VIRTCHNL_VLAN_ETHERTYPE_88A8 = 0x00000002,
781 VIRTCHNL_VLAN_ETHERTYPE_9100 = 0x00000004,
782 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1 = 0x00000100,
783 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2 = 0x00000200,
784 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 = 0x00000400,
785 VIRTCHNL_VLAN_PRIO = 0x01000000,
786 VIRTCHNL_VLAN_FILTER_MASK = 0x10000000,
787 VIRTCHNL_VLAN_ETHERTYPE_AND = 0x20000000,
788 VIRTCHNL_VLAN_ETHERTYPE_XOR = 0x40000000,
789 VIRTCHNL_VLAN_TOGGLE = 0x80000000
792 /* This structure is used as part of the VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS
793 * for filtering, insertion, and stripping capabilities.
795 * If only outer capabilities are supported (for filtering, insertion, and/or
796 * stripping) then this refers to the outer most or single VLAN from the VF's
799 * If only inner capabilities are supported (for filtering, insertion, and/or
800 * stripping) then this refers to the outer most or single VLAN from the VF's
801 * perspective. Functionally this is the same as if only outer capabilities are
802 * supported. The VF driver is just forced to use the inner fields when
803 * adding/deleting filters and enabling/disabling offloads (if supported).
805 * If both outer and inner capabilities are supported (for filtering, insertion,
806 * and/or stripping) then outer refers to the outer most or single VLAN and
807 * inner refers to the second VLAN, if it exists, in the packet.
809 * There is no support for tunneled VLAN offloads, so outer or inner are never
810 * referring to a tunneled packet from the VF's perspective.
812 struct virtchnl_vlan_supported_caps {
817 /* The PF populates these fields based on the supported VLAN filtering. If a
818 * field is VIRTCHNL_VLAN_UNSUPPORTED then it's not supported and the PF will
819 * reject any VIRTCHNL_OP_ADD_VLAN_V2 or VIRTCHNL_OP_DEL_VLAN_V2 messages using
820 * the unsupported fields.
822 * Also, a VF is only allowed to toggle its VLAN filtering setting if the
823 * VIRTCHNL_VLAN_TOGGLE bit is set.
825 * The ethertype(s) specified in the ethertype_init field are the ethertypes
826 * enabled for VLAN filtering. VLAN filtering in this case refers to the outer
827 * most VLAN from the VF's perspective. If both inner and outer filtering are
828 * allowed then ethertype_init only refers to the outer most VLAN as only
829 * VLAN ethertype supported for inner VLAN filtering is
830 * VIRTCHNL_VLAN_ETHERTYPE_8100. By default, inner VLAN filtering is disabled
831 * when both inner and outer filtering are allowed.
833 * The max_filters field tells the VF how many VLAN filters it's allowed to have
834 * at any one time. If it exceeds this amount and tries to add another filter,
835 * then the request will be rejected by the PF. To prevent failures, the VF
836 * should keep track of how many VLAN filters it has added and not attempt to
837 * add more than max_filters.
839 struct virtchnl_vlan_filtering_caps {
840 struct virtchnl_vlan_supported_caps filtering_support;
846 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vlan_filtering_caps);
848 /* This enum is used for the virtchnl_vlan_offload_caps structure to specify
849 * if the PF supports a different ethertype for stripping and insertion.
851 * VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION - The ethertype(s) specified
852 * for stripping affect the ethertype(s) specified for insertion and visa versa
853 * as well. If the VF tries to configure VLAN stripping via
854 * VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 with VIRTCHNL_VLAN_ETHERTYPE_8100 then
855 * that will be the ethertype for both stripping and insertion.
857 * VIRTCHNL_ETHERTYPE_MATCH_NOT_REQUIRED - The ethertype(s) specified for
858 * stripping do not affect the ethertype(s) specified for insertion and visa
861 enum virtchnl_vlan_ethertype_match {
862 VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION = 0,
863 VIRTCHNL_ETHERTYPE_MATCH_NOT_REQUIRED = 1,
866 /* The PF populates these fields based on the supported VLAN offloads. If a
867 * field is VIRTCHNL_VLAN_UNSUPPORTED then it's not supported and the PF will
868 * reject any VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 or
869 * VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2 messages using the unsupported fields.
871 * Also, a VF is only allowed to toggle its VLAN offload setting if the
872 * VIRTCHNL_VLAN_TOGGLE_ALLOWED bit is set.
874 * The VF driver needs to be aware of how the tags are stripped by hardware and
875 * inserted by the VF driver based on the level of offload support. The PF will
876 * populate these fields based on where the VLAN tags are expected to be
877 * offloaded via the VIRTHCNL_VLAN_TAG_LOCATION_* bits. The VF will need to
878 * interpret these fields. See the definition of the
879 * VIRTCHNL_VLAN_TAG_LOCATION_* bits above the virtchnl_vlan_support
882 struct virtchnl_vlan_offload_caps {
883 struct virtchnl_vlan_supported_caps stripping_support;
884 struct virtchnl_vlan_supported_caps insertion_support;
890 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_vlan_offload_caps);
892 /* VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS
893 * VF sends this message to determine its VLAN capabilities.
895 * PF will mark which capabilities it supports based on hardware support and
896 * current configuration. For example, if a port VLAN is configured the PF will
897 * not allow outer VLAN filtering, stripping, or insertion to be configured so
898 * it will block these features from the VF.
900 * The VF will need to cross reference its capabilities with the PFs
901 * capabilities in the response message from the PF to determine the VLAN
904 struct virtchnl_vlan_caps {
905 struct virtchnl_vlan_filtering_caps filtering;
906 struct virtchnl_vlan_offload_caps offloads;
909 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_vlan_caps);
911 struct virtchnl_vlan {
912 u16 tci; /* tci[15:13] = PCP and tci[11:0] = VID */
913 u16 tci_mask; /* only valid if VIRTCHNL_VLAN_FILTER_MASK set in
916 u16 tpid; /* 0x8100, 0x88a8, etc. and only type(s) set in
917 * filtering caps. Note that tpid here does not refer to
918 * VIRTCHNL_VLAN_ETHERTYPE_*, but it refers to the
919 * actual 2-byte VLAN TPID
924 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_vlan);
926 struct virtchnl_vlan_filter {
927 struct virtchnl_vlan inner;
928 struct virtchnl_vlan outer;
932 VIRTCHNL_CHECK_STRUCT_LEN(32, virtchnl_vlan_filter);
934 /* VIRTCHNL_OP_ADD_VLAN_V2
935 * VIRTCHNL_OP_DEL_VLAN_V2
937 * VF sends these messages to add/del one or more VLAN tag filters for Rx
940 * The PF attempts to add the filters and returns status.
942 * The VF should only ever attempt to add/del virtchnl_vlan_filter(s) using the
943 * supported fields negotiated via VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS.
945 struct virtchnl_vlan_filter_list_v2 {
949 struct virtchnl_vlan_filter filters[1];
952 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_vlan_filter_list_v2);
954 /* VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2
955 * VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2
956 * VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2
957 * VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2
959 * VF sends this message to enable or disable VLAN stripping or insertion. It
960 * also needs to specify an ethertype. The VF knows which VLAN ethertypes are
961 * allowed and whether or not it's allowed to enable/disable the specific
962 * offload via the VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS message. The VF needs to
963 * parse the virtchnl_vlan_caps.offloads fields to determine which offload
964 * messages are allowed.
966 * For example, if the PF populates the virtchnl_vlan_caps.offloads in the
967 * following manner the VF will be allowed to enable and/or disable 0x8100 inner
968 * VLAN insertion and/or stripping via the opcodes listed above. Inner in this
969 * case means the outer most or single VLAN from the VF's perspective. This is
970 * because no outer offloads are supported. See the comments above the
971 * virtchnl_vlan_supported_caps structure for more details.
973 * virtchnl_vlan_caps.offloads.stripping_support.inner =
974 * VIRTCHNL_VLAN_TOGGLE |
975 * VIRTCHNL_VLAN_ETHERTYPE_8100;
977 * virtchnl_vlan_caps.offloads.insertion_support.inner =
978 * VIRTCHNL_VLAN_TOGGLE |
979 * VIRTCHNL_VLAN_ETHERTYPE_8100;
981 * In order to enable inner (again note that in this case inner is the outer
982 * most or single VLAN from the VF's perspective) VLAN stripping for 0x8100
983 * VLANs, the VF would populate the virtchnl_vlan_setting structure in the
984 * following manner and send the VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 message.
986 * virtchnl_vlan_setting.inner_ethertype_setting =
987 * VIRTCHNL_VLAN_ETHERTYPE_8100;
989 * virtchnl_vlan_setting.vport_id = vport_id or vsi_id assigned to the VF on
992 * The reason that VLAN TPID(s) are not being used for the
993 * outer_ethertype_setting and inner_ethertype_setting fields is because it's
994 * possible a device could support VLAN insertion and/or stripping offload on
995 * multiple ethertypes concurrently, so this method allows a VF to request
996 * multiple ethertypes in one message using the virtchnl_vlan_support
999 * For example, if the PF populates the virtchnl_vlan_caps.offloads in the
1000 * following manner the VF will be allowed to enable 0x8100 and 0x88a8 outer
1001 * VLAN insertion and stripping simultaneously. The
1002 * virtchnl_vlan_caps.offloads.ethertype_match field will also have to be
1003 * populated based on what the PF can support.
1005 * virtchnl_vlan_caps.offloads.stripping_support.outer =
1006 * VIRTCHNL_VLAN_TOGGLE |
1007 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1008 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
1009 * VIRTCHNL_VLAN_ETHERTYPE_AND;
1011 * virtchnl_vlan_caps.offloads.insertion_support.outer =
1012 * VIRTCHNL_VLAN_TOGGLE |
1013 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1014 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
1015 * VIRTCHNL_VLAN_ETHERTYPE_AND;
1017 * In order to enable outer VLAN stripping for 0x8100 and 0x88a8 VLANs, the VF
1018 * would populate the virthcnl_vlan_offload_structure in the following manner
1019 * and send the VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 message.
1021 * virtchnl_vlan_setting.outer_ethertype_setting =
1022 * VIRTHCNL_VLAN_ETHERTYPE_8100 |
1023 * VIRTHCNL_VLAN_ETHERTYPE_88A8;
1025 * virtchnl_vlan_setting.vport_id = vport_id or vsi_id assigned to the VF on
1028 * There is also the case where a PF and the underlying hardware can support
1029 * VLAN offloads on multiple ethertypes, but not concurrently. For example, if
1030 * the PF populates the virtchnl_vlan_caps.offloads in the following manner the
1031 * VF will be allowed to enable and/or disable 0x8100 XOR 0x88a8 outer VLAN
1032 * offloads. The ethertypes must match for stripping and insertion.
1034 * virtchnl_vlan_caps.offloads.stripping_support.outer =
1035 * VIRTCHNL_VLAN_TOGGLE |
1036 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1037 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
1038 * VIRTCHNL_VLAN_ETHERTYPE_XOR;
1040 * virtchnl_vlan_caps.offloads.insertion_support.outer =
1041 * VIRTCHNL_VLAN_TOGGLE |
1042 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1043 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
1044 * VIRTCHNL_VLAN_ETHERTYPE_XOR;
1046 * virtchnl_vlan_caps.offloads.ethertype_match =
1047 * VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
1049 * In order to enable outer VLAN stripping for 0x88a8 VLANs, the VF would
1050 * populate the virtchnl_vlan_setting structure in the following manner and send
1051 * the VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2. Also, this will change the
1052 * ethertype for VLAN insertion if it's enabled. So, for completeness, a
1053 * VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2 with the same ethertype should be sent.
1055 * virtchnl_vlan_setting.outer_ethertype_setting = VIRTHCNL_VLAN_ETHERTYPE_88A8;
1057 * virtchnl_vlan_setting.vport_id = vport_id or vsi_id assigned to the VF on
1060 * VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2
1061 * VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2
1063 * VF sends this message to enable or disable VLAN filtering. It also needs to
1064 * specify an ethertype. The VF knows which VLAN ethertypes are allowed and
1065 * whether or not it's allowed to enable/disable filtering via the
1066 * VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS message. The VF needs to
1067 * parse the virtchnl_vlan_caps.filtering fields to determine which, if any,
1068 * filtering messages are allowed.
1070 * For example, if the PF populates the virtchnl_vlan_caps.filtering in the
1071 * following manner the VF will be allowed to enable/disable 0x8100 and 0x88a8
1072 * outer VLAN filtering together. Note, that the VIRTCHNL_VLAN_ETHERTYPE_AND
1073 * means that all filtering ethertypes will to be enabled and disabled together
1074 * regardless of the request from the VF. This means that the underlying
1075 * hardware only supports VLAN filtering for all VLAN the specified ethertypes
1078 * virtchnl_vlan_caps.filtering.filtering_support.outer =
1079 * VIRTCHNL_VLAN_TOGGLE |
1080 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1081 * VIRTHCNL_VLAN_ETHERTYPE_88A8 |
1082 * VIRTCHNL_VLAN_ETHERTYPE_9100 |
1083 * VIRTCHNL_VLAN_ETHERTYPE_AND;
1085 * In order to enable outer VLAN filtering for 0x88a8 and 0x8100 VLANs (0x9100
1086 * VLANs aren't supported by the VF driver), the VF would populate the
1087 * virtchnl_vlan_setting structure in the following manner and send the
1088 * VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2. The same message format would be used
1089 * to disable outer VLAN filtering for 0x88a8 and 0x8100 VLANs, but the
1090 * VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2 opcode is used.
1092 * virtchnl_vlan_setting.outer_ethertype_setting =
1093 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1094 * VIRTCHNL_VLAN_ETHERTYPE_88A8;
1097 struct virtchnl_vlan_setting {
1098 u32 outer_ethertype_setting;
1099 u32 inner_ethertype_setting;
1104 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vlan_setting);
1106 /* VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE
1107 * VF sends VSI id and flags.
1108 * PF returns status code in retval.
1109 * Note: we assume that broadcast accept mode is always enabled.
1111 struct virtchnl_promisc_info {
1116 VIRTCHNL_CHECK_STRUCT_LEN(4, virtchnl_promisc_info);
1118 #define FLAG_VF_UNICAST_PROMISC 0x00000001
1119 #define FLAG_VF_MULTICAST_PROMISC 0x00000002
1121 /* VIRTCHNL_OP_GET_STATS
1122 * VF sends this message to request stats for the selected VSI. VF uses
1123 * the virtchnl_queue_select struct to specify the VSI. The queue_id
1124 * field is ignored by the PF.
1126 * PF replies with struct virtchnl_eth_stats in an external buffer.
1129 struct virtchnl_eth_stats {
1130 u64 rx_bytes; /* received bytes */
1131 u64 rx_unicast; /* received unicast pkts */
1132 u64 rx_multicast; /* received multicast pkts */
1133 u64 rx_broadcast; /* received broadcast pkts */
1135 u64 rx_unknown_protocol;
1136 u64 tx_bytes; /* transmitted bytes */
1137 u64 tx_unicast; /* transmitted unicast pkts */
1138 u64 tx_multicast; /* transmitted multicast pkts */
1139 u64 tx_broadcast; /* transmitted broadcast pkts */
1144 /* VIRTCHNL_OP_CONFIG_RSS_KEY
1145 * VIRTCHNL_OP_CONFIG_RSS_LUT
1146 * VF sends these messages to configure RSS. Only supported if both PF
1147 * and VF drivers set the VIRTCHNL_VF_OFFLOAD_RSS_PF bit during
1148 * configuration negotiation. If this is the case, then the RSS fields in
1149 * the VF resource struct are valid.
1150 * Both the key and LUT are initialized to 0 by the PF, meaning that
1151 * RSS is effectively disabled until set up by the VF.
1153 struct virtchnl_rss_key {
1156 u8 key[1]; /* RSS hash key, packed bytes */
1159 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_key);
1161 struct virtchnl_rss_lut {
1164 u8 lut[1]; /* RSS lookup table */
1167 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_lut);
1169 /* VIRTCHNL_OP_GET_RSS_HENA_CAPS
1170 * VIRTCHNL_OP_SET_RSS_HENA
1171 * VF sends these messages to get and set the hash filter enable bits for RSS.
1172 * By default, the PF sets these to all possible traffic types that the
1173 * hardware supports. The VF can query this value if it wants to change the
1174 * traffic types that are hashed by the hardware.
1176 struct virtchnl_rss_hena {
1180 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_rss_hena);
1182 /* Type of RSS algorithm */
1183 enum virtchnl_rss_algorithm {
1184 VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC = 0,
1185 VIRTCHNL_RSS_ALG_XOR_ASYMMETRIC = 1,
1186 VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC = 2,
1187 VIRTCHNL_RSS_ALG_XOR_SYMMETRIC = 3,
1190 /* This is used by PF driver to enforce how many channels can be supported.
1191 * When ADQ_V2 capability is negotiated, it will allow 16 channels otherwise
1192 * PF driver will allow only max 4 channels
1194 #define VIRTCHNL_MAX_ADQ_CHANNELS 4
1195 #define VIRTCHNL_MAX_ADQ_V2_CHANNELS 16
1197 /* VIRTCHNL_OP_ENABLE_CHANNELS
1198 * VIRTCHNL_OP_DISABLE_CHANNELS
1199 * VF sends these messages to enable or disable channels based on
1200 * the user specified queue count and queue offset for each traffic class.
1201 * This struct encompasses all the information that the PF needs from
1202 * VF to create a channel.
1204 struct virtchnl_channel_info {
1205 u16 count; /* number of queues in a channel */
1206 u16 offset; /* queues in a channel start from 'offset' */
1211 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_channel_info);
1213 struct virtchnl_tc_info {
1216 struct virtchnl_channel_info list[1];
1219 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_tc_info);
1221 /* VIRTCHNL_ADD_CLOUD_FILTER
1222 * VIRTCHNL_DEL_CLOUD_FILTER
1223 * VF sends these messages to add or delete a cloud filter based on the
1224 * user specified match and action filters. These structures encompass
1225 * all the information that the PF needs from the VF to add/delete a
1229 struct virtchnl_l4_spec {
1230 u8 src_mac[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
1231 u8 dst_mac[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
1232 /* vlan_prio is part of this 16 bit field even from OS perspective
1233 * vlan_id:12 is actual vlan_id, then vlanid:bit14..12 is vlan_prio
1234 * in future, when decided to offload vlan_prio, pass that information
1235 * as part of the "vlan_id" field, Bit14..12
1238 __be16 pad; /* reserved for future use */
1245 VIRTCHNL_CHECK_STRUCT_LEN(52, virtchnl_l4_spec);
1247 union virtchnl_flow_spec {
1248 struct virtchnl_l4_spec tcp_spec;
1249 u8 buffer[128]; /* reserved for future use */
1252 VIRTCHNL_CHECK_UNION_LEN(128, virtchnl_flow_spec);
1254 enum virtchnl_action {
1256 VIRTCHNL_ACTION_DROP = 0,
1257 VIRTCHNL_ACTION_TC_REDIRECT,
1258 VIRTCHNL_ACTION_PASSTHRU,
1259 VIRTCHNL_ACTION_QUEUE,
1260 VIRTCHNL_ACTION_Q_REGION,
1261 VIRTCHNL_ACTION_MARK,
1262 VIRTCHNL_ACTION_COUNT,
1265 enum virtchnl_flow_type {
1267 VIRTCHNL_TCP_V4_FLOW = 0,
1268 VIRTCHNL_TCP_V6_FLOW,
1269 VIRTCHNL_UDP_V4_FLOW,
1270 VIRTCHNL_UDP_V6_FLOW,
1273 struct virtchnl_filter {
1274 union virtchnl_flow_spec data;
1275 union virtchnl_flow_spec mask;
1277 /* see enum virtchnl_flow_type */
1280 /* see enum virtchnl_action */
1286 VIRTCHNL_CHECK_STRUCT_LEN(272, virtchnl_filter);
1288 /* VIRTCHNL_OP_DCF_GET_VSI_MAP
1289 * VF sends this message to get VSI mapping table.
1290 * PF responds with an indirect message containing VF's
1292 * The index of vf_vsi array is the logical VF ID, the
1293 * value of vf_vsi array is the VF's HW VSI ID with its
1294 * valid configuration.
1296 struct virtchnl_dcf_vsi_map {
1297 u16 pf_vsi; /* PF's HW VSI ID */
1298 u16 num_vfs; /* The actual number of VFs allocated */
1299 #define VIRTCHNL_DCF_VF_VSI_ID_S 0
1300 #define VIRTCHNL_DCF_VF_VSI_ID_M (0xFFF << VIRTCHNL_DCF_VF_VSI_ID_S)
1301 #define VIRTCHNL_DCF_VF_VSI_VALID BIT(15)
1305 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_dcf_vsi_map);
1307 #define PKG_NAME_SIZE 32
1310 struct pkg_version {
1317 VIRTCHNL_CHECK_STRUCT_LEN(4, pkg_version);
1319 struct virtchnl_pkg_info {
1320 struct pkg_version pkg_ver;
1322 char pkg_name[PKG_NAME_SIZE];
1326 VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_pkg_info);
1328 /* VIRTCHNL_OP_DCF_VLAN_OFFLOAD
1329 * DCF negotiates the VIRTCHNL_VF_OFFLOAD_VLAN_V2 capability firstly to get
1330 * the double VLAN configuration, then DCF sends this message to configure the
1331 * outer or inner VLAN offloads (insertion and strip) for the target VF.
1333 struct virtchnl_dcf_vlan_offload {
1337 #define VIRTCHNL_DCF_VLAN_TYPE_S 0
1338 #define VIRTCHNL_DCF_VLAN_TYPE_M \
1339 (0x1 << VIRTCHNL_DCF_VLAN_TYPE_S)
1340 #define VIRTCHNL_DCF_VLAN_TYPE_INNER 0x0
1341 #define VIRTCHNL_DCF_VLAN_TYPE_OUTER 0x1
1342 #define VIRTCHNL_DCF_VLAN_INSERT_MODE_S 1
1343 #define VIRTCHNL_DCF_VLAN_INSERT_MODE_M \
1344 (0x7 << VIRTCHNL_DCF_VLAN_INSERT_MODE_S)
1345 #define VIRTCHNL_DCF_VLAN_INSERT_DISABLE 0x1
1346 #define VIRTCHNL_DCF_VLAN_INSERT_PORT_BASED 0x2
1347 #define VIRTCHNL_DCF_VLAN_INSERT_VIA_TX_DESC 0x3
1348 #define VIRTCHNL_DCF_VLAN_STRIP_MODE_S 4
1349 #define VIRTCHNL_DCF_VLAN_STRIP_MODE_M \
1350 (0x7 << VIRTCHNL_DCF_VLAN_STRIP_MODE_S)
1351 #define VIRTCHNL_DCF_VLAN_STRIP_DISABLE 0x1
1352 #define VIRTCHNL_DCF_VLAN_STRIP_ONLY 0x2
1353 #define VIRTCHNL_DCF_VLAN_STRIP_INTO_RX_DESC 0x3
1358 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_dcf_vlan_offload);
1360 struct virtchnl_supported_rxdids {
1361 /* see enum virtchnl_rx_desc_id_bitmasks */
1362 u64 supported_rxdids;
1365 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_supported_rxdids);
1367 /* VIRTCHNL_OP_EVENT
1368 * PF sends this message to inform the VF driver of events that may affect it.
1369 * No direct response is expected from the VF, though it may generate other
1370 * messages in response to this one.
1372 enum virtchnl_event_codes {
1373 VIRTCHNL_EVENT_UNKNOWN = 0,
1374 VIRTCHNL_EVENT_LINK_CHANGE,
1375 VIRTCHNL_EVENT_RESET_IMPENDING,
1376 VIRTCHNL_EVENT_PF_DRIVER_CLOSE,
1377 VIRTCHNL_EVENT_DCF_VSI_MAP_UPDATE,
1380 #define PF_EVENT_SEVERITY_INFO 0
1381 #define PF_EVENT_SEVERITY_ATTENTION 1
1382 #define PF_EVENT_SEVERITY_ACTION_REQUIRED 2
1383 #define PF_EVENT_SEVERITY_CERTAIN_DOOM 255
1385 struct virtchnl_pf_event {
1386 /* see enum virtchnl_event_codes */
1389 /* If the PF driver does not support the new speed reporting
1390 * capabilities then use link_event else use link_event_adv to
1391 * get the speed and link information. The ability to understand
1392 * new speeds is indicated by setting the capability flag
1393 * VIRTCHNL_VF_CAP_ADV_LINK_SPEED in vf_cap_flags parameter
1394 * in virtchnl_vf_resource struct and can be used to determine
1395 * which link event struct to use below.
1398 enum virtchnl_link_speed link_speed;
1402 /* link_speed provided in Mbps */
1415 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_pf_event);
1418 /* VF reset states - these are written into the RSTAT register:
1419 * VFGEN_RSTAT on the VF
1420 * When the PF initiates a reset, it writes 0
1421 * When the reset is complete, it writes 1
1422 * When the PF detects that the VF has recovered, it writes 2
1423 * VF checks this register periodically to determine if a reset has occurred,
1424 * then polls it to know when the reset is complete.
1425 * If either the PF or VF reads the register while the hardware
1426 * is in a reset state, it will return DEADBEEF, which, when masked
1429 enum virtchnl_vfr_states {
1430 VIRTCHNL_VFR_INPROGRESS = 0,
1431 VIRTCHNL_VFR_COMPLETED,
1432 VIRTCHNL_VFR_VFACTIVE,
1435 #define VIRTCHNL_MAX_NUM_PROTO_HDRS 32
1436 #define PROTO_HDR_SHIFT 5
1437 #define PROTO_HDR_FIELD_START(proto_hdr_type) \
1438 (proto_hdr_type << PROTO_HDR_SHIFT)
1439 #define PROTO_HDR_FIELD_MASK ((1UL << PROTO_HDR_SHIFT) - 1)
1441 /* VF use these macros to configure each protocol header.
1442 * Specify which protocol headers and protocol header fields base on
1443 * virtchnl_proto_hdr_type and virtchnl_proto_hdr_field.
1444 * @param hdr: a struct of virtchnl_proto_hdr
1445 * @param hdr_type: ETH/IPV4/TCP, etc
1446 * @param field: SRC/DST/TEID/SPI, etc
1448 #define VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr, field) \
1449 ((hdr)->field_selector |= BIT((field) & PROTO_HDR_FIELD_MASK))
1450 #define VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr, field) \
1451 ((hdr)->field_selector &= ~BIT((field) & PROTO_HDR_FIELD_MASK))
1452 #define VIRTCHNL_TEST_PROTO_HDR_FIELD(hdr, val) \
1453 ((hdr)->field_selector & BIT((val) & PROTO_HDR_FIELD_MASK))
1454 #define VIRTCHNL_GET_PROTO_HDR_FIELD(hdr) ((hdr)->field_selector)
1456 #define VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, hdr_type, field) \
1457 (VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr, \
1458 VIRTCHNL_PROTO_HDR_ ## hdr_type ## _ ## field))
1459 #define VIRTCHNL_DEL_PROTO_HDR_FIELD_BIT(hdr, hdr_type, field) \
1460 (VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr, \
1461 VIRTCHNL_PROTO_HDR_ ## hdr_type ## _ ## field))
1463 #define VIRTCHNL_SET_PROTO_HDR_TYPE(hdr, hdr_type) \
1464 ((hdr)->type = VIRTCHNL_PROTO_HDR_ ## hdr_type)
1465 #define VIRTCHNL_GET_PROTO_HDR_TYPE(hdr) \
1466 (((hdr)->type) >> PROTO_HDR_SHIFT)
1467 #define VIRTCHNL_TEST_PROTO_HDR_TYPE(hdr, val) \
1468 ((hdr)->type == ((val) >> PROTO_HDR_SHIFT))
1469 #define VIRTCHNL_TEST_PROTO_HDR(hdr, val) \
1470 (VIRTCHNL_TEST_PROTO_HDR_TYPE(hdr, val) && \
1471 VIRTCHNL_TEST_PROTO_HDR_FIELD(hdr, val))
1473 /* Protocol header type within a packet segment. A segment consists of one or
1474 * more protocol headers that make up a logical group of protocol headers. Each
1475 * logical group of protocol headers encapsulates or is encapsulated using/by
1476 * tunneling or encapsulation protocols for network virtualization.
1478 enum virtchnl_proto_hdr_type {
1479 VIRTCHNL_PROTO_HDR_NONE,
1480 VIRTCHNL_PROTO_HDR_ETH,
1481 VIRTCHNL_PROTO_HDR_S_VLAN,
1482 VIRTCHNL_PROTO_HDR_C_VLAN,
1483 VIRTCHNL_PROTO_HDR_IPV4,
1484 VIRTCHNL_PROTO_HDR_IPV6,
1485 VIRTCHNL_PROTO_HDR_TCP,
1486 VIRTCHNL_PROTO_HDR_UDP,
1487 VIRTCHNL_PROTO_HDR_SCTP,
1488 VIRTCHNL_PROTO_HDR_GTPU_IP,
1489 VIRTCHNL_PROTO_HDR_GTPU_EH,
1490 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
1491 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
1492 VIRTCHNL_PROTO_HDR_PPPOE,
1493 VIRTCHNL_PROTO_HDR_L2TPV3,
1494 VIRTCHNL_PROTO_HDR_ESP,
1495 VIRTCHNL_PROTO_HDR_AH,
1496 VIRTCHNL_PROTO_HDR_PFCP,
1497 VIRTCHNL_PROTO_HDR_GTPC,
1498 VIRTCHNL_PROTO_HDR_ECPRI,
1499 VIRTCHNL_PROTO_HDR_L2TPV2,
1500 VIRTCHNL_PROTO_HDR_PPP,
1501 /* IPv4 and IPv6 Fragment header types are only associated to
1502 * VIRTCHNL_PROTO_HDR_IPV4 and VIRTCHNL_PROTO_HDR_IPV6 respectively,
1503 * cannot be used independently.
1505 VIRTCHNL_PROTO_HDR_IPV4_FRAG,
1506 VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG,
1509 /* Protocol header field within a protocol header. */
1510 enum virtchnl_proto_hdr_field {
1512 VIRTCHNL_PROTO_HDR_ETH_SRC =
1513 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ETH),
1514 VIRTCHNL_PROTO_HDR_ETH_DST,
1515 VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE,
1517 VIRTCHNL_PROTO_HDR_S_VLAN_ID =
1518 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_S_VLAN),
1520 VIRTCHNL_PROTO_HDR_C_VLAN_ID =
1521 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_C_VLAN),
1523 VIRTCHNL_PROTO_HDR_IPV4_SRC =
1524 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV4),
1525 VIRTCHNL_PROTO_HDR_IPV4_DST,
1526 VIRTCHNL_PROTO_HDR_IPV4_DSCP,
1527 VIRTCHNL_PROTO_HDR_IPV4_TTL,
1528 VIRTCHNL_PROTO_HDR_IPV4_PROT,
1530 VIRTCHNL_PROTO_HDR_IPV6_SRC =
1531 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV6),
1532 VIRTCHNL_PROTO_HDR_IPV6_DST,
1533 VIRTCHNL_PROTO_HDR_IPV6_TC,
1534 VIRTCHNL_PROTO_HDR_IPV6_HOP_LIMIT,
1535 VIRTCHNL_PROTO_HDR_IPV6_PROT,
1537 VIRTCHNL_PROTO_HDR_IPV6_PREFIX32_SRC,
1538 VIRTCHNL_PROTO_HDR_IPV6_PREFIX32_DST,
1539 VIRTCHNL_PROTO_HDR_IPV6_PREFIX40_SRC,
1540 VIRTCHNL_PROTO_HDR_IPV6_PREFIX40_DST,
1541 VIRTCHNL_PROTO_HDR_IPV6_PREFIX48_SRC,
1542 VIRTCHNL_PROTO_HDR_IPV6_PREFIX48_DST,
1543 VIRTCHNL_PROTO_HDR_IPV6_PREFIX56_SRC,
1544 VIRTCHNL_PROTO_HDR_IPV6_PREFIX56_DST,
1545 VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_SRC,
1546 VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_DST,
1547 VIRTCHNL_PROTO_HDR_IPV6_PREFIX96_SRC,
1548 VIRTCHNL_PROTO_HDR_IPV6_PREFIX96_DST,
1550 VIRTCHNL_PROTO_HDR_TCP_SRC_PORT =
1551 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_TCP),
1552 VIRTCHNL_PROTO_HDR_TCP_DST_PORT,
1554 VIRTCHNL_PROTO_HDR_UDP_SRC_PORT =
1555 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_UDP),
1556 VIRTCHNL_PROTO_HDR_UDP_DST_PORT,
1558 VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT =
1559 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_SCTP),
1560 VIRTCHNL_PROTO_HDR_SCTP_DST_PORT,
1562 VIRTCHNL_PROTO_HDR_GTPU_IP_TEID =
1563 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_IP),
1565 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU =
1566 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_EH),
1567 VIRTCHNL_PROTO_HDR_GTPU_EH_QFI,
1569 VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID =
1570 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_PPPOE),
1572 VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID =
1573 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_L2TPV3),
1575 VIRTCHNL_PROTO_HDR_ESP_SPI =
1576 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ESP),
1578 VIRTCHNL_PROTO_HDR_AH_SPI =
1579 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_AH),
1581 VIRTCHNL_PROTO_HDR_PFCP_S_FIELD =
1582 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_PFCP),
1583 VIRTCHNL_PROTO_HDR_PFCP_SEID,
1585 VIRTCHNL_PROTO_HDR_GTPC_TEID =
1586 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPC),
1588 VIRTCHNL_PROTO_HDR_ECPRI_MSG_TYPE =
1589 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ECPRI),
1590 VIRTCHNL_PROTO_HDR_ECPRI_PC_RTC_ID,
1591 /* IPv4 Dummy Fragment */
1592 VIRTCHNL_PROTO_HDR_IPV4_FRAG_PKID =
1593 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV4_FRAG),
1594 /* IPv6 Extension Fragment */
1595 VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG_PKID =
1596 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG),
1599 struct virtchnl_proto_hdr {
1600 /* see enum virtchnl_proto_hdr_type */
1602 u32 field_selector; /* a bit mask to select field for header type */
1605 * binary buffer in network order for specific header type.
1606 * For example, if type = VIRTCHNL_PROTO_HDR_IPV4, a IPv4
1607 * header is expected to be copied into the buffer.
1611 VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_proto_hdr);
1613 struct virtchnl_proto_hdrs {
1616 * specify where protocol header start from.
1617 * 0 - from the outer layer
1618 * 1 - from the first inner layer
1619 * 2 - from the second inner layer
1622 int count; /* the proto layers must < VIRTCHNL_MAX_NUM_PROTO_HDRS */
1623 struct virtchnl_proto_hdr proto_hdr[VIRTCHNL_MAX_NUM_PROTO_HDRS];
1626 VIRTCHNL_CHECK_STRUCT_LEN(2312, virtchnl_proto_hdrs);
1628 struct virtchnl_rss_cfg {
1629 struct virtchnl_proto_hdrs proto_hdrs; /* protocol headers */
1631 /* see enum virtchnl_rss_algorithm; rss algorithm type */
1633 u8 reserved[128]; /* reserve for future */
1636 VIRTCHNL_CHECK_STRUCT_LEN(2444, virtchnl_rss_cfg);
1638 /* action configuration for FDIR */
1639 struct virtchnl_filter_action {
1640 /* see enum virtchnl_action type */
1643 /* used for queue and qgroup action */
1648 /* used for count action */
1650 /* share counter ID with other flow rules */
1652 u32 id; /* counter ID */
1654 /* used for mark action */
1660 VIRTCHNL_CHECK_STRUCT_LEN(36, virtchnl_filter_action);
1662 #define VIRTCHNL_MAX_NUM_ACTIONS 8
1664 struct virtchnl_filter_action_set {
1665 /* action number must be less then VIRTCHNL_MAX_NUM_ACTIONS */
1667 struct virtchnl_filter_action actions[VIRTCHNL_MAX_NUM_ACTIONS];
1670 VIRTCHNL_CHECK_STRUCT_LEN(292, virtchnl_filter_action_set);
1672 /* pattern and action for FDIR rule */
1673 struct virtchnl_fdir_rule {
1674 struct virtchnl_proto_hdrs proto_hdrs;
1675 struct virtchnl_filter_action_set action_set;
1678 VIRTCHNL_CHECK_STRUCT_LEN(2604, virtchnl_fdir_rule);
1680 /* query information to retrieve fdir rule counters.
1681 * PF will fill out this structure to reset counter.
1683 struct virtchnl_fdir_query_info {
1684 u32 match_packets_valid:1;
1685 u32 match_bytes_valid:1;
1686 u32 reserved:30; /* Reserved, must be zero. */
1688 u64 matched_packets; /* Number of packets for this rule. */
1689 u64 matched_bytes; /* Number of bytes through this rule. */
1692 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_fdir_query_info);
1694 /* Status returned to VF after VF requests FDIR commands
1695 * VIRTCHNL_FDIR_SUCCESS
1696 * VF FDIR related request is successfully done by PF
1697 * The request can be OP_ADD/DEL/QUERY_FDIR_FILTER.
1699 * VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE
1700 * OP_ADD_FDIR_FILTER request is failed due to no Hardware resource.
1702 * VIRTCHNL_FDIR_FAILURE_RULE_EXIST
1703 * OP_ADD_FDIR_FILTER request is failed due to the rule is already existed.
1705 * VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT
1706 * OP_ADD_FDIR_FILTER request is failed due to conflict with existing rule.
1708 * VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST
1709 * OP_DEL_FDIR_FILTER request is failed due to this rule doesn't exist.
1711 * VIRTCHNL_FDIR_FAILURE_RULE_INVALID
1712 * OP_ADD_FDIR_FILTER request is failed due to parameters validation
1713 * or HW doesn't support.
1715 * VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT
1716 * OP_ADD/DEL_FDIR_FILTER request is failed due to timing out
1719 * VIRTCHNL_FDIR_FAILURE_QUERY_INVALID
1720 * OP_QUERY_FDIR_FILTER request is failed due to parameters validation,
1721 * for example, VF query counter of a rule who has no counter action.
1723 enum virtchnl_fdir_prgm_status {
1724 VIRTCHNL_FDIR_SUCCESS = 0,
1725 VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE,
1726 VIRTCHNL_FDIR_FAILURE_RULE_EXIST,
1727 VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT,
1728 VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST,
1729 VIRTCHNL_FDIR_FAILURE_RULE_INVALID,
1730 VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT,
1731 VIRTCHNL_FDIR_FAILURE_QUERY_INVALID,
1734 /* VIRTCHNL_OP_ADD_FDIR_FILTER
1735 * VF sends this request to PF by filling out vsi_id,
1736 * validate_only and rule_cfg. PF will return flow_id
1737 * if the request is successfully done and return add_status to VF.
1739 struct virtchnl_fdir_add {
1740 u16 vsi_id; /* INPUT */
1742 * 1 for validating a fdir rule, 0 for creating a fdir rule.
1743 * Validate and create share one ops: VIRTCHNL_OP_ADD_FDIR_FILTER.
1745 u16 validate_only; /* INPUT */
1746 u32 flow_id; /* OUTPUT */
1747 struct virtchnl_fdir_rule rule_cfg; /* INPUT */
1749 /* see enum virtchnl_fdir_prgm_status; OUTPUT */
1753 VIRTCHNL_CHECK_STRUCT_LEN(2616, virtchnl_fdir_add);
1755 /* VIRTCHNL_OP_DEL_FDIR_FILTER
1756 * VF sends this request to PF by filling out vsi_id
1757 * and flow_id. PF will return del_status to VF.
1759 struct virtchnl_fdir_del {
1760 u16 vsi_id; /* INPUT */
1762 u32 flow_id; /* INPUT */
1764 /* see enum virtchnl_fdir_prgm_status; OUTPUT */
1768 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_fdir_del);
1770 /* VIRTCHNL_OP_QUERY_FDIR_FILTER
1771 * VF sends this request to PF by filling out vsi_id,
1772 * flow_id and reset_counter. PF will return query_info
1773 * and query_status to VF.
1775 struct virtchnl_fdir_query {
1776 u16 vsi_id; /* INPUT */
1778 u32 flow_id; /* INPUT */
1779 u32 reset_counter:1; /* INPUT */
1780 struct virtchnl_fdir_query_info query_info; /* OUTPUT */
1782 /* see enum virtchnl_fdir_prgm_status; OUTPUT */
1787 VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_fdir_query);
1789 /* TX and RX queue types are valid in legacy as well as split queue models.
1790 * With Split Queue model, 2 additional types are introduced - TX_COMPLETION
1791 * and RX_BUFFER. In split queue model, RX corresponds to the queue where HW
1792 * posts completions.
1794 enum virtchnl_queue_type {
1795 VIRTCHNL_QUEUE_TYPE_TX = 0,
1796 VIRTCHNL_QUEUE_TYPE_RX = 1,
1797 VIRTCHNL_QUEUE_TYPE_TX_COMPLETION = 2,
1798 VIRTCHNL_QUEUE_TYPE_RX_BUFFER = 3,
1799 VIRTCHNL_QUEUE_TYPE_CONFIG_TX = 4,
1800 VIRTCHNL_QUEUE_TYPE_CONFIG_RX = 5
1804 /* structure to specify a chunk of contiguous queues */
1805 struct virtchnl_queue_chunk {
1806 /* see enum virtchnl_queue_type */
1812 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_queue_chunk);
1814 /* structure to specify several chunks of contiguous queues */
1815 struct virtchnl_queue_chunks {
1818 struct virtchnl_queue_chunk chunks[1];
1821 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_chunks);
1824 /* VIRTCHNL_OP_ENABLE_QUEUES_V2
1825 * VIRTCHNL_OP_DISABLE_QUEUES_V2
1826 * VIRTCHNL_OP_DEL_QUEUES
1828 * If VIRTCHNL_CAP_EXT_FEATURES was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
1829 * then all of these ops are available.
1831 * If VIRTCHNL_VF_LARGE_NUM_QPAIRS was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
1832 * then VIRTCHNL_OP_ENABLE_QUEUES_V2 and VIRTCHNL_OP_DISABLE_QUEUES_V2 are
1835 * PF sends these messages to enable, disable or delete queues specified in
1836 * chunks. PF sends virtchnl_del_ena_dis_queues struct to specify the queues
1837 * to be enabled/disabled/deleted. Also applicable to single queue RX or
1838 * TX. CP performs requested action and returns status.
1840 struct virtchnl_del_ena_dis_queues {
1843 struct virtchnl_queue_chunks chunks;
1846 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_del_ena_dis_queues);
1848 /* Virtchannel interrupt throttling rate index */
1849 enum virtchnl_itr_idx {
1850 VIRTCHNL_ITR_IDX_0 = 0,
1851 VIRTCHNL_ITR_IDX_1 = 1,
1852 VIRTCHNL_ITR_IDX_NO_ITR = 3,
1855 /* Queue to vector mapping */
1856 struct virtchnl_queue_vector {
1861 /* see enum virtchnl_itr_idx */
1864 /* see enum virtchnl_queue_type */
1868 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_queue_vector);
1870 /* VIRTCHNL_OP_MAP_QUEUE_VECTOR
1871 * VIRTCHNL_OP_UNMAP_QUEUE_VECTOR
1873 * If VIRTCHNL_CAP_EXT_FEATURES was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
1874 * then all of these ops are available.
1876 * If VIRTCHNL_VF_LARGE_NUM_QPAIRS was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
1877 * then only VIRTCHNL_OP_MAP_QUEUE_VECTOR is available.
1879 * PF sends this message to map or unmap queues to vectors and ITR index
1880 * registers. External data buffer contains virtchnl_queue_vector_maps structure
1881 * that contains num_qv_maps of virtchnl_queue_vector structures.
1882 * CP maps the requested queue vector maps after validating the queue and vector
1883 * ids and returns a status code.
1885 struct virtchnl_queue_vector_maps {
1889 struct virtchnl_queue_vector qv_maps[1];
1892 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_queue_vector_maps);
1895 /* Since VF messages are limited by u16 size, precalculate the maximum possible
1896 * values of nested elements in virtchnl structures that virtual channel can
1897 * possibly handle in a single message.
1899 enum virtchnl_vector_limits {
1900 VIRTCHNL_OP_CONFIG_VSI_QUEUES_MAX =
1901 ((u16)(~0) - sizeof(struct virtchnl_vsi_queue_config_info)) /
1902 sizeof(struct virtchnl_queue_pair_info),
1904 VIRTCHNL_OP_CONFIG_IRQ_MAP_MAX =
1905 ((u16)(~0) - sizeof(struct virtchnl_irq_map_info)) /
1906 sizeof(struct virtchnl_vector_map),
1908 VIRTCHNL_OP_ADD_DEL_ETH_ADDR_MAX =
1909 ((u16)(~0) - sizeof(struct virtchnl_ether_addr_list)) /
1910 sizeof(struct virtchnl_ether_addr),
1912 VIRTCHNL_OP_ADD_DEL_VLAN_MAX =
1913 ((u16)(~0) - sizeof(struct virtchnl_vlan_filter_list)) /
1917 VIRTCHNL_OP_ENABLE_CHANNELS_MAX =
1918 ((u16)(~0) - sizeof(struct virtchnl_tc_info)) /
1919 sizeof(struct virtchnl_channel_info),
1921 VIRTCHNL_OP_ENABLE_DISABLE_DEL_QUEUES_V2_MAX =
1922 ((u16)(~0) - sizeof(struct virtchnl_del_ena_dis_queues)) /
1923 sizeof(struct virtchnl_queue_chunk),
1925 VIRTCHNL_OP_MAP_UNMAP_QUEUE_VECTOR_MAX =
1926 ((u16)(~0) - sizeof(struct virtchnl_queue_vector_maps)) /
1927 sizeof(struct virtchnl_queue_vector),
1929 VIRTCHNL_OP_ADD_DEL_VLAN_V2_MAX =
1930 ((u16)(~0) - sizeof(struct virtchnl_vlan_filter_list_v2)) /
1931 sizeof(struct virtchnl_vlan_filter),
1935 * virtchnl_vc_validate_vf_msg
1936 * @ver: Virtchnl version info
1937 * @v_opcode: Opcode for the message
1938 * @msg: pointer to the msg buffer
1939 * @msglen: msg length
1941 * validate msg format against struct for each opcode
1944 virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,
1945 u8 *msg, u16 msglen)
1947 bool err_msg_format = false;
1950 /* Validate message length. */
1952 case VIRTCHNL_OP_VERSION:
1953 valid_len = sizeof(struct virtchnl_version_info);
1955 case VIRTCHNL_OP_RESET_VF:
1957 case VIRTCHNL_OP_GET_VF_RESOURCES:
1959 valid_len = sizeof(u32);
1961 case VIRTCHNL_OP_CONFIG_TX_QUEUE:
1962 valid_len = sizeof(struct virtchnl_txq_info);
1964 case VIRTCHNL_OP_CONFIG_RX_QUEUE:
1965 valid_len = sizeof(struct virtchnl_rxq_info);
1967 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1968 valid_len = sizeof(struct virtchnl_vsi_queue_config_info);
1969 if (msglen >= valid_len) {
1970 struct virtchnl_vsi_queue_config_info *vqc =
1971 (struct virtchnl_vsi_queue_config_info *)msg;
1973 if (vqc->num_queue_pairs == 0 || vqc->num_queue_pairs >
1974 VIRTCHNL_OP_CONFIG_VSI_QUEUES_MAX) {
1975 err_msg_format = true;
1979 valid_len += (vqc->num_queue_pairs *
1981 virtchnl_queue_pair_info));
1984 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
1985 valid_len = sizeof(struct virtchnl_irq_map_info);
1986 if (msglen >= valid_len) {
1987 struct virtchnl_irq_map_info *vimi =
1988 (struct virtchnl_irq_map_info *)msg;
1990 if (vimi->num_vectors == 0 || vimi->num_vectors >
1991 VIRTCHNL_OP_CONFIG_IRQ_MAP_MAX) {
1992 err_msg_format = true;
1996 valid_len += (vimi->num_vectors *
1997 sizeof(struct virtchnl_vector_map));
2000 case VIRTCHNL_OP_ENABLE_QUEUES:
2001 case VIRTCHNL_OP_DISABLE_QUEUES:
2002 valid_len = sizeof(struct virtchnl_queue_select);
2004 case VIRTCHNL_OP_GET_MAX_RSS_QREGION:
2006 case VIRTCHNL_OP_ADD_ETH_ADDR:
2007 case VIRTCHNL_OP_DEL_ETH_ADDR:
2008 valid_len = sizeof(struct virtchnl_ether_addr_list);
2009 if (msglen >= valid_len) {
2010 struct virtchnl_ether_addr_list *veal =
2011 (struct virtchnl_ether_addr_list *)msg;
2013 if (veal->num_elements == 0 || veal->num_elements >
2014 VIRTCHNL_OP_ADD_DEL_ETH_ADDR_MAX) {
2015 err_msg_format = true;
2019 valid_len += veal->num_elements *
2020 sizeof(struct virtchnl_ether_addr);
2023 case VIRTCHNL_OP_ADD_VLAN:
2024 case VIRTCHNL_OP_DEL_VLAN:
2025 valid_len = sizeof(struct virtchnl_vlan_filter_list);
2026 if (msglen >= valid_len) {
2027 struct virtchnl_vlan_filter_list *vfl =
2028 (struct virtchnl_vlan_filter_list *)msg;
2030 if (vfl->num_elements == 0 || vfl->num_elements >
2031 VIRTCHNL_OP_ADD_DEL_VLAN_MAX) {
2032 err_msg_format = true;
2036 valid_len += vfl->num_elements * sizeof(u16);
2039 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2040 valid_len = sizeof(struct virtchnl_promisc_info);
2042 case VIRTCHNL_OP_GET_STATS:
2043 valid_len = sizeof(struct virtchnl_queue_select);
2045 case VIRTCHNL_OP_CONFIG_RSS_KEY:
2046 valid_len = sizeof(struct virtchnl_rss_key);
2047 if (msglen >= valid_len) {
2048 struct virtchnl_rss_key *vrk =
2049 (struct virtchnl_rss_key *)msg;
2051 if (vrk->key_len == 0) {
2052 /* zero length is allowed as input */
2056 valid_len += vrk->key_len - 1;
2059 case VIRTCHNL_OP_CONFIG_RSS_LUT:
2060 valid_len = sizeof(struct virtchnl_rss_lut);
2061 if (msglen >= valid_len) {
2062 struct virtchnl_rss_lut *vrl =
2063 (struct virtchnl_rss_lut *)msg;
2065 if (vrl->lut_entries == 0) {
2066 /* zero entries is allowed as input */
2070 valid_len += vrl->lut_entries - 1;
2073 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2075 case VIRTCHNL_OP_SET_RSS_HENA:
2076 valid_len = sizeof(struct virtchnl_rss_hena);
2078 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
2079 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
2081 case VIRTCHNL_OP_REQUEST_QUEUES:
2082 valid_len = sizeof(struct virtchnl_vf_res_request);
2084 case VIRTCHNL_OP_ENABLE_CHANNELS:
2085 valid_len = sizeof(struct virtchnl_tc_info);
2086 if (msglen >= valid_len) {
2087 struct virtchnl_tc_info *vti =
2088 (struct virtchnl_tc_info *)msg;
2090 if (vti->num_tc == 0 || vti->num_tc >
2091 VIRTCHNL_OP_ENABLE_CHANNELS_MAX) {
2092 err_msg_format = true;
2096 valid_len += (vti->num_tc - 1) *
2097 sizeof(struct virtchnl_channel_info);
2100 case VIRTCHNL_OP_DISABLE_CHANNELS:
2102 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
2103 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
2104 valid_len = sizeof(struct virtchnl_filter);
2106 case VIRTCHNL_OP_DCF_VLAN_OFFLOAD:
2107 valid_len = sizeof(struct virtchnl_dcf_vlan_offload);
2109 case VIRTCHNL_OP_DCF_CMD_DESC:
2110 case VIRTCHNL_OP_DCF_CMD_BUFF:
2111 /* These two opcodes are specific to handle the AdminQ command,
2112 * so the validation needs to be done in PF's context.
2116 case VIRTCHNL_OP_DCF_DISABLE:
2117 case VIRTCHNL_OP_DCF_GET_VSI_MAP:
2118 case VIRTCHNL_OP_DCF_GET_PKG_INFO:
2120 case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS:
2122 case VIRTCHNL_OP_ADD_RSS_CFG:
2123 case VIRTCHNL_OP_DEL_RSS_CFG:
2124 valid_len = sizeof(struct virtchnl_rss_cfg);
2126 case VIRTCHNL_OP_ADD_FDIR_FILTER:
2127 valid_len = sizeof(struct virtchnl_fdir_add);
2129 case VIRTCHNL_OP_DEL_FDIR_FILTER:
2130 valid_len = sizeof(struct virtchnl_fdir_del);
2132 case VIRTCHNL_OP_QUERY_FDIR_FILTER:
2133 valid_len = sizeof(struct virtchnl_fdir_query);
2135 case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
2137 case VIRTCHNL_OP_ADD_VLAN_V2:
2138 case VIRTCHNL_OP_DEL_VLAN_V2:
2139 valid_len = sizeof(struct virtchnl_vlan_filter_list_v2);
2140 if (msglen >= valid_len) {
2141 struct virtchnl_vlan_filter_list_v2 *vfl =
2142 (struct virtchnl_vlan_filter_list_v2 *)msg;
2144 if (vfl->num_elements == 0 || vfl->num_elements >
2145 VIRTCHNL_OP_ADD_DEL_VLAN_V2_MAX) {
2146 err_msg_format = true;
2150 valid_len += (vfl->num_elements - 1) *
2151 sizeof(struct virtchnl_vlan_filter);
2154 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
2155 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
2156 case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
2157 case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
2158 case VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2:
2159 case VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2:
2160 valid_len = sizeof(struct virtchnl_vlan_setting);
2162 case VIRTCHNL_OP_ENABLE_QUEUES_V2:
2163 case VIRTCHNL_OP_DISABLE_QUEUES_V2:
2164 valid_len = sizeof(struct virtchnl_del_ena_dis_queues);
2165 if (msglen >= valid_len) {
2166 struct virtchnl_del_ena_dis_queues *qs =
2167 (struct virtchnl_del_ena_dis_queues *)msg;
2168 if (qs->chunks.num_chunks == 0 ||
2169 qs->chunks.num_chunks > VIRTCHNL_OP_ENABLE_DISABLE_DEL_QUEUES_V2_MAX) {
2170 err_msg_format = true;
2173 valid_len += (qs->chunks.num_chunks - 1) *
2174 sizeof(struct virtchnl_queue_chunk);
2177 case VIRTCHNL_OP_MAP_QUEUE_VECTOR:
2178 valid_len = sizeof(struct virtchnl_queue_vector_maps);
2179 if (msglen >= valid_len) {
2180 struct virtchnl_queue_vector_maps *v_qp =
2181 (struct virtchnl_queue_vector_maps *)msg;
2182 if (v_qp->num_qv_maps == 0 ||
2183 v_qp->num_qv_maps > VIRTCHNL_OP_MAP_UNMAP_QUEUE_VECTOR_MAX) {
2184 err_msg_format = true;
2187 valid_len += (v_qp->num_qv_maps - 1) *
2188 sizeof(struct virtchnl_queue_vector);
2191 /* These are always errors coming from the VF. */
2192 case VIRTCHNL_OP_EVENT:
2193 case VIRTCHNL_OP_UNKNOWN:
2195 return VIRTCHNL_STATUS_ERR_PARAM;
2197 /* few more checks */
2198 if (err_msg_format || valid_len != msglen)
2199 return VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH;
2203 #endif /* _VIRTCHNL_H_ */