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
41 #include "virtchnl_inline_ipsec.h"
44 enum virtchnl_status_code {
45 VIRTCHNL_STATUS_SUCCESS = 0,
46 VIRTCHNL_STATUS_ERR_PARAM = -5,
47 VIRTCHNL_STATUS_ERR_NO_MEMORY = -18,
48 VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH = -38,
49 VIRTCHNL_STATUS_ERR_CQP_COMPL_ERROR = -39,
50 VIRTCHNL_STATUS_ERR_INVALID_VF_ID = -40,
51 VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR = -53,
52 VIRTCHNL_STATUS_ERR_NOT_SUPPORTED = -64,
55 /* Backward compatibility */
56 #define VIRTCHNL_ERR_PARAM VIRTCHNL_STATUS_ERR_PARAM
57 #define VIRTCHNL_STATUS_NOT_SUPPORTED VIRTCHNL_STATUS_ERR_NOT_SUPPORTED
59 #define VIRTCHNL_LINK_SPEED_2_5GB_SHIFT 0x0
60 #define VIRTCHNL_LINK_SPEED_100MB_SHIFT 0x1
61 #define VIRTCHNL_LINK_SPEED_1000MB_SHIFT 0x2
62 #define VIRTCHNL_LINK_SPEED_10GB_SHIFT 0x3
63 #define VIRTCHNL_LINK_SPEED_40GB_SHIFT 0x4
64 #define VIRTCHNL_LINK_SPEED_20GB_SHIFT 0x5
65 #define VIRTCHNL_LINK_SPEED_25GB_SHIFT 0x6
66 #define VIRTCHNL_LINK_SPEED_5GB_SHIFT 0x7
68 enum virtchnl_link_speed {
69 VIRTCHNL_LINK_SPEED_UNKNOWN = 0,
70 VIRTCHNL_LINK_SPEED_100MB = BIT(VIRTCHNL_LINK_SPEED_100MB_SHIFT),
71 VIRTCHNL_LINK_SPEED_1GB = BIT(VIRTCHNL_LINK_SPEED_1000MB_SHIFT),
72 VIRTCHNL_LINK_SPEED_10GB = BIT(VIRTCHNL_LINK_SPEED_10GB_SHIFT),
73 VIRTCHNL_LINK_SPEED_40GB = BIT(VIRTCHNL_LINK_SPEED_40GB_SHIFT),
74 VIRTCHNL_LINK_SPEED_20GB = BIT(VIRTCHNL_LINK_SPEED_20GB_SHIFT),
75 VIRTCHNL_LINK_SPEED_25GB = BIT(VIRTCHNL_LINK_SPEED_25GB_SHIFT),
76 VIRTCHNL_LINK_SPEED_2_5GB = BIT(VIRTCHNL_LINK_SPEED_2_5GB_SHIFT),
77 VIRTCHNL_LINK_SPEED_5GB = BIT(VIRTCHNL_LINK_SPEED_5GB_SHIFT),
80 /* for hsplit_0 field of Rx HMC context */
81 /* deprecated with IAVF 1.0 */
82 enum virtchnl_rx_hsplit {
83 VIRTCHNL_RX_HSPLIT_NO_SPLIT = 0,
84 VIRTCHNL_RX_HSPLIT_SPLIT_L2 = 1,
85 VIRTCHNL_RX_HSPLIT_SPLIT_IP = 2,
86 VIRTCHNL_RX_HSPLIT_SPLIT_TCP_UDP = 4,
87 VIRTCHNL_RX_HSPLIT_SPLIT_SCTP = 8,
90 enum virtchnl_bw_limit_type {
91 VIRTCHNL_BW_SHAPER = 0,
94 #define VIRTCHNL_ETH_LENGTH_OF_ADDRESS 6
95 /* END GENERIC DEFINES */
97 /* Opcodes for VF-PF communication. These are placed in the v_opcode field
98 * of the virtchnl_msg structure.
101 /* The PF sends status change events to VFs using
102 * the VIRTCHNL_OP_EVENT opcode.
103 * VFs send requests to the PF using the other ops.
104 * Use of "advanced opcode" features must be negotiated as part of capabilities
105 * exchange and are not considered part of base mode feature set.
107 VIRTCHNL_OP_UNKNOWN = 0,
108 VIRTCHNL_OP_VERSION = 1, /* must ALWAYS be 1 */
109 VIRTCHNL_OP_RESET_VF = 2,
110 VIRTCHNL_OP_GET_VF_RESOURCES = 3,
111 VIRTCHNL_OP_CONFIG_TX_QUEUE = 4,
112 VIRTCHNL_OP_CONFIG_RX_QUEUE = 5,
113 VIRTCHNL_OP_CONFIG_VSI_QUEUES = 6,
114 VIRTCHNL_OP_CONFIG_IRQ_MAP = 7,
115 VIRTCHNL_OP_ENABLE_QUEUES = 8,
116 VIRTCHNL_OP_DISABLE_QUEUES = 9,
117 VIRTCHNL_OP_ADD_ETH_ADDR = 10,
118 VIRTCHNL_OP_DEL_ETH_ADDR = 11,
119 VIRTCHNL_OP_ADD_VLAN = 12,
120 VIRTCHNL_OP_DEL_VLAN = 13,
121 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE = 14,
122 VIRTCHNL_OP_GET_STATS = 15,
123 VIRTCHNL_OP_RSVD = 16,
124 VIRTCHNL_OP_EVENT = 17, /* must ALWAYS be 17 */
125 /* opcode 19 is reserved */
126 /* opcodes 20, 21, and 22 are reserved */
127 VIRTCHNL_OP_CONFIG_RSS_KEY = 23,
128 VIRTCHNL_OP_CONFIG_RSS_LUT = 24,
129 VIRTCHNL_OP_GET_RSS_HENA_CAPS = 25,
130 VIRTCHNL_OP_SET_RSS_HENA = 26,
131 VIRTCHNL_OP_ENABLE_VLAN_STRIPPING = 27,
132 VIRTCHNL_OP_DISABLE_VLAN_STRIPPING = 28,
133 VIRTCHNL_OP_REQUEST_QUEUES = 29,
134 VIRTCHNL_OP_ENABLE_CHANNELS = 30,
135 VIRTCHNL_OP_DISABLE_CHANNELS = 31,
136 VIRTCHNL_OP_ADD_CLOUD_FILTER = 32,
137 VIRTCHNL_OP_DEL_CLOUD_FILTER = 33,
138 VIRTCHNL_OP_INLINE_IPSEC_CRYPTO = 34,
139 /* opcodes 35 and 36 are reserved */
140 VIRTCHNL_OP_DCF_CONFIG_BW = 37,
141 VIRTCHNL_OP_DCF_VLAN_OFFLOAD = 38,
142 VIRTCHNL_OP_DCF_CMD_DESC = 39,
143 VIRTCHNL_OP_DCF_CMD_BUFF = 40,
144 VIRTCHNL_OP_DCF_DISABLE = 41,
145 VIRTCHNL_OP_DCF_GET_VSI_MAP = 42,
146 VIRTCHNL_OP_DCF_GET_PKG_INFO = 43,
147 VIRTCHNL_OP_GET_SUPPORTED_RXDIDS = 44,
148 VIRTCHNL_OP_ADD_RSS_CFG = 45,
149 VIRTCHNL_OP_DEL_RSS_CFG = 46,
150 VIRTCHNL_OP_ADD_FDIR_FILTER = 47,
151 VIRTCHNL_OP_DEL_FDIR_FILTER = 48,
152 VIRTCHNL_OP_GET_MAX_RSS_QREGION = 50,
153 VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS = 51,
154 VIRTCHNL_OP_ADD_VLAN_V2 = 52,
155 VIRTCHNL_OP_DEL_VLAN_V2 = 53,
156 VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 = 54,
157 VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2 = 55,
158 VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2 = 56,
159 VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2 = 57,
160 VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2 = 58,
161 VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2 = 59,
162 VIRTCHNL_OP_GET_QOS_CAPS = 66,
163 VIRTCHNL_OP_CONFIG_QUEUE_TC_MAP = 67,
164 VIRTCHNL_OP_ENABLE_QUEUES_V2 = 107,
165 VIRTCHNL_OP_DISABLE_QUEUES_V2 = 108,
166 VIRTCHNL_OP_MAP_QUEUE_VECTOR = 111,
167 VIRTCHNL_OP_CONFIG_QUEUE_BW = 112,
171 static inline const char *virtchnl_op_str(enum virtchnl_ops v_opcode)
174 case VIRTCHNL_OP_UNKNOWN:
175 return "VIRTCHNL_OP_UNKNOWN";
176 case VIRTCHNL_OP_VERSION:
177 return "VIRTCHNL_OP_VERSION";
178 case VIRTCHNL_OP_RESET_VF:
179 return "VIRTCHNL_OP_RESET_VF";
180 case VIRTCHNL_OP_GET_VF_RESOURCES:
181 return "VIRTCHNL_OP_GET_VF_RESOURCES";
182 case VIRTCHNL_OP_CONFIG_TX_QUEUE:
183 return "VIRTCHNL_OP_CONFIG_TX_QUEUE";
184 case VIRTCHNL_OP_CONFIG_RX_QUEUE:
185 return "VIRTCHNL_OP_CONFIG_RX_QUEUE";
186 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
187 return "VIRTCHNL_OP_CONFIG_VSI_QUEUES";
188 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
189 return "VIRTCHNL_OP_CONFIG_IRQ_MAP";
190 case VIRTCHNL_OP_ENABLE_QUEUES:
191 return "VIRTCHNL_OP_ENABLE_QUEUES";
192 case VIRTCHNL_OP_DISABLE_QUEUES:
193 return "VIRTCHNL_OP_DISABLE_QUEUES";
194 case VIRTCHNL_OP_ADD_ETH_ADDR:
195 return "VIRTCHNL_OP_ADD_ETH_ADDR";
196 case VIRTCHNL_OP_DEL_ETH_ADDR:
197 return "VIRTCHNL_OP_DEL_ETH_ADDR";
198 case VIRTCHNL_OP_ADD_VLAN:
199 return "VIRTCHNL_OP_ADD_VLAN";
200 case VIRTCHNL_OP_DEL_VLAN:
201 return "VIRTCHNL_OP_DEL_VLAN";
202 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
203 return "VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE";
204 case VIRTCHNL_OP_GET_STATS:
205 return "VIRTCHNL_OP_GET_STATS";
206 case VIRTCHNL_OP_RSVD:
207 return "VIRTCHNL_OP_RSVD";
208 case VIRTCHNL_OP_EVENT:
209 return "VIRTCHNL_OP_EVENT";
210 case VIRTCHNL_OP_CONFIG_RSS_KEY:
211 return "VIRTCHNL_OP_CONFIG_RSS_KEY";
212 case VIRTCHNL_OP_CONFIG_RSS_LUT:
213 return "VIRTCHNL_OP_CONFIG_RSS_LUT";
214 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
215 return "VIRTCHNL_OP_GET_RSS_HENA_CAPS";
216 case VIRTCHNL_OP_SET_RSS_HENA:
217 return "VIRTCHNL_OP_SET_RSS_HENA";
218 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
219 return "VIRTCHNL_OP_ENABLE_VLAN_STRIPPING";
220 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
221 return "VIRTCHNL_OP_DISABLE_VLAN_STRIPPING";
222 case VIRTCHNL_OP_REQUEST_QUEUES:
223 return "VIRTCHNL_OP_REQUEST_QUEUES";
224 case VIRTCHNL_OP_ENABLE_CHANNELS:
225 return "VIRTCHNL_OP_ENABLE_CHANNELS";
226 case VIRTCHNL_OP_DISABLE_CHANNELS:
227 return "VIRTCHNL_OP_DISABLE_CHANNELS";
228 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
229 return "VIRTCHNL_OP_ADD_CLOUD_FILTER";
230 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
231 return "VIRTCHNL_OP_DEL_CLOUD_FILTER";
232 case VIRTCHNL_OP_INLINE_IPSEC_CRYPTO:
233 return "VIRTCHNL_OP_INLINE_IPSEC_CRYPTO";
234 case VIRTCHNL_OP_DCF_CMD_DESC:
235 return "VIRTCHNL_OP_DCF_CMD_DESC";
236 case VIRTCHNL_OP_DCF_CMD_BUFF:
237 return "VIRTCHNL_OP_DCF_CMD_BUFF";
238 case VIRTCHNL_OP_DCF_DISABLE:
239 return "VIRTCHNL_OP_DCF_DISABLE";
240 case VIRTCHNL_OP_DCF_GET_VSI_MAP:
241 return "VIRTCHNL_OP_DCF_GET_VSI_MAP";
242 case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS:
243 return "VIRTCHNL_OP_GET_SUPPORTED_RXDIDS";
244 case VIRTCHNL_OP_ADD_RSS_CFG:
245 return "VIRTCHNL_OP_ADD_RSS_CFG";
246 case VIRTCHNL_OP_DEL_RSS_CFG:
247 return "VIRTCHNL_OP_DEL_RSS_CFG";
248 case VIRTCHNL_OP_ADD_FDIR_FILTER:
249 return "VIRTCHNL_OP_ADD_FDIR_FILTER";
250 case VIRTCHNL_OP_DEL_FDIR_FILTER:
251 return "VIRTCHNL_OP_DEL_FDIR_FILTER";
252 case VIRTCHNL_OP_GET_MAX_RSS_QREGION:
253 return "VIRTCHNL_OP_GET_MAX_RSS_QREGION";
254 case VIRTCHNL_OP_ENABLE_QUEUES_V2:
255 return "VIRTCHNL_OP_ENABLE_QUEUES_V2";
256 case VIRTCHNL_OP_DISABLE_QUEUES_V2:
257 return "VIRTCHNL_OP_DISABLE_QUEUES_V2";
258 case VIRTCHNL_OP_MAP_QUEUE_VECTOR:
259 return "VIRTCHNL_OP_MAP_QUEUE_VECTOR";
260 case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
261 return "VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS";
262 case VIRTCHNL_OP_ADD_VLAN_V2:
263 return "VIRTCHNL_OP_ADD_VLAN_V2";
264 case VIRTCHNL_OP_DEL_VLAN_V2:
265 return "VIRTCHNL_OP_DEL_VLAN_V2";
266 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
267 return "VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2";
268 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
269 return "VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2";
270 case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
271 return "VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2";
272 case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
273 return "VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2";
274 case VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2:
275 return "VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2";
276 case VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2:
277 return "VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2";
278 case VIRTCHNL_OP_MAX:
279 return "VIRTCHNL_OP_MAX";
281 return "Unsupported (update virtchnl.h)";
285 /* These macros are used to generate compilation errors if a structure/union
286 * is not exactly the correct length. It gives a divide by zero error if the
287 * structure/union is not of the correct size, otherwise it creates an enum
288 * that is never used.
290 #define VIRTCHNL_CHECK_STRUCT_LEN(n, X) enum virtchnl_static_assert_enum_##X \
291 { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) }
292 #define VIRTCHNL_CHECK_UNION_LEN(n, X) enum virtchnl_static_asset_enum_##X \
293 { virtchnl_static_assert_##X = (n)/((sizeof(union X) == (n)) ? 1 : 0) }
295 /* Virtual channel message descriptor. This overlays the admin queue
296 * descriptor. All other data is passed in external buffers.
299 struct virtchnl_msg {
300 u8 pad[8]; /* AQ flags/opcode/len/retval fields */
302 /* avoid confusion with desc->opcode */
303 enum virtchnl_ops v_opcode;
305 /* ditto for desc->retval */
306 enum virtchnl_status_code v_retval;
307 u32 vfid; /* used by PF when sending to VF */
310 VIRTCHNL_CHECK_STRUCT_LEN(20, virtchnl_msg);
312 /* Message descriptions and data structures. */
314 /* VIRTCHNL_OP_VERSION
315 * VF posts its version number to the PF. PF responds with its version number
316 * in the same format, along with a return code.
317 * Reply from PF has its major/minor versions also in param0 and param1.
318 * If there is a major version mismatch, then the VF cannot operate.
319 * If there is a minor version mismatch, then the VF can operate but should
320 * add a warning to the system log.
322 * This enum element MUST always be specified as == 1, regardless of other
323 * changes in the API. The PF must always respond to this message without
324 * error regardless of version mismatch.
326 #define VIRTCHNL_VERSION_MAJOR 1
327 #define VIRTCHNL_VERSION_MINOR 1
328 #define VIRTCHNL_VERSION_MINOR_NO_VF_CAPS 0
330 struct virtchnl_version_info {
335 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_version_info);
337 #define VF_IS_V10(_v) (((_v)->major == 1) && ((_v)->minor == 0))
338 #define VF_IS_V11(_ver) (((_ver)->major == 1) && ((_ver)->minor == 1))
340 /* VIRTCHNL_OP_RESET_VF
341 * VF sends this request to PF with no parameters
342 * PF does NOT respond! VF driver must delay then poll VFGEN_RSTAT register
343 * until reset completion is indicated. The admin queue must be reinitialized
344 * after this operation.
346 * When reset is complete, PF must ensure that all queues in all VSIs associated
347 * with the VF are stopped, all queue configurations in the HMC are set to 0,
348 * and all MAC and VLAN filters (except the default MAC address) on all VSIs
352 /* VSI types that use VIRTCHNL interface for VF-PF communication. VSI_SRIOV
353 * vsi_type should always be 6 for backward compatibility. Add other fields
356 enum virtchnl_vsi_type {
357 VIRTCHNL_VSI_TYPE_INVALID = 0,
358 VIRTCHNL_VSI_SRIOV = 6,
361 /* VIRTCHNL_OP_GET_VF_RESOURCES
362 * Version 1.0 VF sends this request to PF with no parameters
363 * Version 1.1 VF sends this request to PF with u32 bitmap of its capabilities
364 * PF responds with an indirect message containing
365 * virtchnl_vf_resource and one or more
366 * virtchnl_vsi_resource structures.
369 struct virtchnl_vsi_resource {
373 /* see enum virtchnl_vsi_type */
376 u8 default_mac_addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
379 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
381 /* VF capability flags
382 * VIRTCHNL_VF_OFFLOAD_L2 flag is inclusive of base mode L2 offloads including
383 * TX/RX Checksum offloading and TSO for non-tunnelled packets.
385 #define VIRTCHNL_VF_OFFLOAD_L2 BIT(0)
386 #define VIRTCHNL_VF_OFFLOAD_IWARP BIT(1)
387 #define VIRTCHNL_VF_OFFLOAD_RSVD BIT(2)
388 #define VIRTCHNL_VF_OFFLOAD_RSS_AQ BIT(3)
389 #define VIRTCHNL_VF_OFFLOAD_RSS_REG BIT(4)
390 #define VIRTCHNL_VF_OFFLOAD_WB_ON_ITR BIT(5)
391 #define VIRTCHNL_VF_OFFLOAD_REQ_QUEUES BIT(6)
392 /* used to negotiate communicating link speeds in Mbps */
393 #define VIRTCHNL_VF_CAP_ADV_LINK_SPEED BIT(7)
394 #define VIRTCHNL_VF_OFFLOAD_INLINE_IPSEC_CRYPTO BIT(8)
395 #define VIRTCHNL_VF_LARGE_NUM_QPAIRS BIT(9)
396 #define VIRTCHNL_VF_OFFLOAD_CRC BIT(10)
397 #define VIRTCHNL_VF_OFFLOAD_VLAN_V2 BIT(15)
398 #define VIRTCHNL_VF_OFFLOAD_VLAN BIT(16)
399 #define VIRTCHNL_VF_OFFLOAD_RX_POLLING BIT(17)
400 #define VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 BIT(18)
401 #define VIRTCHNL_VF_OFFLOAD_RSS_PF BIT(19)
402 #define VIRTCHNL_VF_OFFLOAD_ENCAP BIT(20)
403 #define VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM BIT(21)
404 #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM BIT(22)
405 #define VIRTCHNL_VF_OFFLOAD_ADQ BIT(23)
406 #define VIRTCHNL_VF_OFFLOAD_ADQ_V2 BIT(24)
407 #define VIRTCHNL_VF_OFFLOAD_USO BIT(25)
408 #define VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC BIT(26)
409 #define VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF BIT(27)
410 #define VIRTCHNL_VF_OFFLOAD_FDIR_PF BIT(28)
411 #define VIRTCHNL_VF_OFFLOAD_QOS BIT(29)
412 #define VIRTCHNL_VF_CAP_DCF BIT(30)
413 /* BIT(31) is reserved */
415 #define VF_BASE_MODE_OFFLOADS (VIRTCHNL_VF_OFFLOAD_L2 | \
416 VIRTCHNL_VF_OFFLOAD_VLAN | \
417 VIRTCHNL_VF_OFFLOAD_RSS_PF)
419 struct virtchnl_vf_resource {
429 struct virtchnl_vsi_resource vsi_res[1];
432 VIRTCHNL_CHECK_STRUCT_LEN(36, virtchnl_vf_resource);
434 /* VIRTCHNL_OP_CONFIG_TX_QUEUE
435 * VF sends this message to set up parameters for one TX queue.
436 * External data buffer contains one instance of virtchnl_txq_info.
437 * PF configures requested queue and returns a status code.
440 /* Tx queue config info */
441 struct virtchnl_txq_info {
444 u16 ring_len; /* number of descriptors, multiple of 8 */
445 u16 headwb_enabled; /* deprecated with AVF 1.0 */
447 u64 dma_headwb_addr; /* deprecated with AVF 1.0 */
450 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_txq_info);
452 /* RX descriptor IDs (range from 0 to 63) */
453 enum virtchnl_rx_desc_ids {
454 VIRTCHNL_RXDID_0_16B_BASE = 0,
455 /* 32B_BASE and FLEX_SPLITQ share desc ids as default descriptors
456 * because they can be differentiated based on queue model; e.g. single
457 * queue model can only use 32B_BASE and split queue model can only use
458 * FLEX_SPLITQ. Having these as 1 allows them to be used as default
459 * descriptors without negotiation.
461 VIRTCHNL_RXDID_1_32B_BASE = 1,
462 VIRTCHNL_RXDID_1_FLEX_SPLITQ = 1,
463 VIRTCHNL_RXDID_2_FLEX_SQ_NIC = 2,
464 VIRTCHNL_RXDID_3_FLEX_SQ_SW = 3,
465 VIRTCHNL_RXDID_4_FLEX_SQ_NIC_VEB = 4,
466 VIRTCHNL_RXDID_5_FLEX_SQ_NIC_ACL = 5,
467 VIRTCHNL_RXDID_6_FLEX_SQ_NIC_2 = 6,
468 VIRTCHNL_RXDID_7_HW_RSVD = 7,
469 /* 9 through 15 are reserved */
470 VIRTCHNL_RXDID_16_COMMS_GENERIC = 16,
471 VIRTCHNL_RXDID_17_COMMS_AUX_VLAN = 17,
472 VIRTCHNL_RXDID_18_COMMS_AUX_IPV4 = 18,
473 VIRTCHNL_RXDID_19_COMMS_AUX_IPV6 = 19,
474 VIRTCHNL_RXDID_20_COMMS_AUX_FLOW = 20,
475 VIRTCHNL_RXDID_21_COMMS_AUX_TCP = 21,
476 /* 22 through 63 are reserved */
479 /* RX descriptor ID bitmasks */
480 enum virtchnl_rx_desc_id_bitmasks {
481 VIRTCHNL_RXDID_0_16B_BASE_M = BIT(VIRTCHNL_RXDID_0_16B_BASE),
482 VIRTCHNL_RXDID_1_32B_BASE_M = BIT(VIRTCHNL_RXDID_1_32B_BASE),
483 VIRTCHNL_RXDID_1_FLEX_SPLITQ_M = BIT(VIRTCHNL_RXDID_1_FLEX_SPLITQ),
484 VIRTCHNL_RXDID_2_FLEX_SQ_NIC_M = BIT(VIRTCHNL_RXDID_2_FLEX_SQ_NIC),
485 VIRTCHNL_RXDID_3_FLEX_SQ_SW_M = BIT(VIRTCHNL_RXDID_3_FLEX_SQ_SW),
486 VIRTCHNL_RXDID_4_FLEX_SQ_NIC_VEB_M = BIT(VIRTCHNL_RXDID_4_FLEX_SQ_NIC_VEB),
487 VIRTCHNL_RXDID_5_FLEX_SQ_NIC_ACL_M = BIT(VIRTCHNL_RXDID_5_FLEX_SQ_NIC_ACL),
488 VIRTCHNL_RXDID_6_FLEX_SQ_NIC_2_M = BIT(VIRTCHNL_RXDID_6_FLEX_SQ_NIC_2),
489 VIRTCHNL_RXDID_7_HW_RSVD_M = BIT(VIRTCHNL_RXDID_7_HW_RSVD),
490 /* 9 through 15 are reserved */
491 VIRTCHNL_RXDID_16_COMMS_GENERIC_M = BIT(VIRTCHNL_RXDID_16_COMMS_GENERIC),
492 VIRTCHNL_RXDID_17_COMMS_AUX_VLAN_M = BIT(VIRTCHNL_RXDID_17_COMMS_AUX_VLAN),
493 VIRTCHNL_RXDID_18_COMMS_AUX_IPV4_M = BIT(VIRTCHNL_RXDID_18_COMMS_AUX_IPV4),
494 VIRTCHNL_RXDID_19_COMMS_AUX_IPV6_M = BIT(VIRTCHNL_RXDID_19_COMMS_AUX_IPV6),
495 VIRTCHNL_RXDID_20_COMMS_AUX_FLOW_M = BIT(VIRTCHNL_RXDID_20_COMMS_AUX_FLOW),
496 VIRTCHNL_RXDID_21_COMMS_AUX_TCP_M = BIT(VIRTCHNL_RXDID_21_COMMS_AUX_TCP),
497 /* 22 through 63 are reserved */
500 /* VIRTCHNL_OP_CONFIG_RX_QUEUE
501 * VF sends this message to set up parameters for one RX queue.
502 * External data buffer contains one instance of virtchnl_rxq_info.
503 * PF configures requested queue and returns a status code. The
504 * crc_disable flag disables CRC stripping on the VF. Setting
505 * the crc_disable flag to 1 will disable CRC stripping for each
506 * queue in the VF where the flag is set. The VIRTCHNL_VF_OFFLOAD_CRC
507 * offload must have been set prior to sending this info or the PF
508 * will ignore the request. This flag should be set the same for
509 * all of the queues for a VF.
512 /* Rx queue config info */
513 struct virtchnl_rxq_info {
516 u32 ring_len; /* number of descriptors, multiple of 32 */
518 u16 splithdr_enabled; /* deprecated with AVF 1.0 */
522 /* see enum virtchnl_rx_desc_ids;
523 * only used when VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC is supported. Note
524 * that when the offload is not supported, the descriptor format aligns
525 * with VIRTCHNL_RXDID_1_32B_BASE.
531 /* see enum virtchnl_rx_hsplit; deprecated with AVF 1.0 */
536 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_rxq_info);
538 /* VIRTCHNL_OP_CONFIG_VSI_QUEUES
539 * VF sends this message to set parameters for active TX and RX queues
540 * associated with the specified VSI.
541 * PF configures queues and returns status.
542 * If the number of queues specified is greater than the number of queues
543 * associated with the VSI, an error is returned and no queues are configured.
544 * NOTE: The VF is not required to configure all queues in a single request.
545 * It may send multiple messages. PF drivers must correctly handle all VF
548 struct virtchnl_queue_pair_info {
549 /* NOTE: vsi_id and queue_id should be identical for both queues. */
550 struct virtchnl_txq_info txq;
551 struct virtchnl_rxq_info rxq;
554 VIRTCHNL_CHECK_STRUCT_LEN(64, virtchnl_queue_pair_info);
556 struct virtchnl_vsi_queue_config_info {
560 struct virtchnl_queue_pair_info qpair[1];
563 VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_vsi_queue_config_info);
565 /* VIRTCHNL_OP_REQUEST_QUEUES
566 * VF sends this message to request the PF to allocate additional queues to
567 * this VF. Each VF gets a guaranteed number of queues on init but asking for
568 * additional queues must be negotiated. This is a best effort request as it
569 * is possible the PF does not have enough queues left to support the request.
570 * If the PF cannot support the number requested it will respond with the
571 * maximum number it is able to support. If the request is successful, PF will
572 * then reset the VF to institute required changes.
575 /* VF resource request */
576 struct virtchnl_vf_res_request {
580 /* VIRTCHNL_OP_CONFIG_IRQ_MAP
581 * VF uses this message to map vectors to queues.
582 * The rxq_map and txq_map fields are bitmaps used to indicate which queues
583 * are to be associated with the specified vector.
584 * The "other" causes are always mapped to vector 0. The VF may not request
585 * that vector 0 be used for traffic.
586 * PF configures interrupt mapping and returns status.
587 * NOTE: due to hardware requirements, all active queues (both TX and RX)
588 * should be mapped to interrupts, even if the driver intends to operate
589 * only in polling mode. In this case the interrupt may be disabled, but
590 * the ITR timer will still run to trigger writebacks.
592 struct virtchnl_vector_map {
601 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_vector_map);
603 struct virtchnl_irq_map_info {
605 struct virtchnl_vector_map vecmap[1];
608 VIRTCHNL_CHECK_STRUCT_LEN(14, virtchnl_irq_map_info);
610 /* VIRTCHNL_OP_ENABLE_QUEUES
611 * VIRTCHNL_OP_DISABLE_QUEUES
612 * VF sends these message to enable or disable TX/RX queue pairs.
613 * The queues fields are bitmaps indicating which queues to act upon.
614 * (Currently, we only support 16 queues per VF, but we make the field
615 * u32 to allow for expansion.)
616 * PF performs requested action and returns status.
617 * NOTE: The VF is not required to enable/disable all queues in a single
618 * request. It may send multiple messages.
619 * PF drivers must correctly handle all VF requests.
621 struct virtchnl_queue_select {
628 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_select);
630 /* VIRTCHNL_OP_GET_MAX_RSS_QREGION
632 * if VIRTCHNL_VF_LARGE_NUM_QPAIRS was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
633 * then this op must be supported.
635 * VF sends this message in order to query the max RSS queue region
636 * size supported by PF, when VIRTCHNL_VF_LARGE_NUM_QPAIRS is enabled.
637 * This information should be used when configuring the RSS LUT and/or
638 * configuring queue region based filters.
640 * The maximum RSS queue region is 2^qregion_width. So, a qregion_width
641 * of 6 would inform the VF that the PF supports a maximum RSS queue region
644 * A queue region represents a range of queues that can be used to configure
645 * a RSS LUT. For example, if a VF is given 64 queues, but only a max queue
646 * region size of 16 (i.e. 2^qregion_width = 16) then it will only be able
647 * to configure the RSS LUT with queue indices from 0 to 15. However, other
648 * filters can be used to direct packets to queues >15 via specifying a queue
649 * base/offset and queue region width.
651 struct virtchnl_max_rss_qregion {
657 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_max_rss_qregion);
659 /* VIRTCHNL_OP_ADD_ETH_ADDR
660 * VF sends this message in order to add one or more unicast or multicast
661 * address filters for the specified VSI.
662 * PF adds the filters and returns status.
665 /* VIRTCHNL_OP_DEL_ETH_ADDR
666 * VF sends this message in order to remove one or more unicast or multicast
667 * filters for the specified VSI.
668 * PF removes the filters and returns status.
671 /* VIRTCHNL_ETHER_ADDR_LEGACY
672 * Prior to adding the @type member to virtchnl_ether_addr, there were 2 pad
673 * bytes. Moving forward all VF drivers should not set type to
674 * VIRTCHNL_ETHER_ADDR_LEGACY. This is only here to not break previous/legacy
675 * behavior. The control plane function (i.e. PF) can use a best effort method
676 * of tracking the primary/device unicast in this case, but there is no
677 * guarantee and functionality depends on the implementation of the PF.
680 /* VIRTCHNL_ETHER_ADDR_PRIMARY
681 * All VF drivers should set @type to VIRTCHNL_ETHER_ADDR_PRIMARY for the
682 * primary/device unicast MAC address filter for VIRTCHNL_OP_ADD_ETH_ADDR and
683 * VIRTCHNL_OP_DEL_ETH_ADDR. This allows for the underlying control plane
684 * function (i.e. PF) to accurately track and use this MAC address for
685 * displaying on the host and for VM/function reset.
688 /* VIRTCHNL_ETHER_ADDR_EXTRA
689 * All VF drivers should set @type to VIRTCHNL_ETHER_ADDR_EXTRA for any extra
690 * unicast and/or multicast filters that are being added/deleted via
691 * VIRTCHNL_OP_DEL_ETH_ADDR/VIRTCHNL_OP_ADD_ETH_ADDR respectively.
693 struct virtchnl_ether_addr {
694 u8 addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
696 #define VIRTCHNL_ETHER_ADDR_LEGACY 0
697 #define VIRTCHNL_ETHER_ADDR_PRIMARY 1
698 #define VIRTCHNL_ETHER_ADDR_EXTRA 2
699 #define VIRTCHNL_ETHER_ADDR_TYPE_MASK 3 /* first two bits of type are valid */
703 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_ether_addr);
705 struct virtchnl_ether_addr_list {
708 struct virtchnl_ether_addr list[1];
711 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_ether_addr_list);
713 /* VIRTCHNL_OP_ADD_VLAN
714 * VF sends this message to add one or more VLAN tag filters for receives.
715 * PF adds the filters and returns status.
716 * If a port VLAN is configured by the PF, this operation will return an
720 /* VIRTCHNL_OP_DEL_VLAN
721 * VF sends this message to remove one or more VLAN tag filters for receives.
722 * PF removes the filters and returns status.
723 * If a port VLAN is configured by the PF, this operation will return an
727 struct virtchnl_vlan_filter_list {
733 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_vlan_filter_list);
735 /* This enum is used for all of the VIRTCHNL_VF_OFFLOAD_VLAN_V2_CAPS related
736 * structures and opcodes.
738 * VIRTCHNL_VLAN_UNSUPPORTED - This field is not supported and if a VF driver
739 * populates it the PF should return VIRTCHNL_STATUS_ERR_NOT_SUPPORTED.
741 * VIRTCHNL_VLAN_ETHERTYPE_8100 - This field supports 0x8100 ethertype.
742 * VIRTCHNL_VLAN_ETHERTYPE_88A8 - This field supports 0x88A8 ethertype.
743 * VIRTCHNL_VLAN_ETHERTYPE_9100 - This field supports 0x9100 ethertype.
745 * VIRTCHNL_VLAN_ETHERTYPE_AND - Used when multiple ethertypes can be supported
746 * by the PF concurrently. For example, if the PF can support
747 * VIRTCHNL_VLAN_ETHERTYPE_8100 AND VIRTCHNL_VLAN_ETHERTYPE_88A8 filters it
748 * would OR the following bits:
750 * VIRTHCNL_VLAN_ETHERTYPE_8100 |
751 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
752 * VIRTCHNL_VLAN_ETHERTYPE_AND;
754 * The VF would interpret this as VLAN filtering can be supported on both 0x8100
755 * and 0x88A8 VLAN ethertypes.
757 * VIRTCHNL_ETHERTYPE_XOR - Used when only a single ethertype can be supported
758 * by the PF concurrently. For example if the PF can support
759 * VIRTCHNL_VLAN_ETHERTYPE_8100 XOR VIRTCHNL_VLAN_ETHERTYPE_88A8 stripping
760 * offload it would OR the following bits:
762 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
763 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
764 * VIRTCHNL_VLAN_ETHERTYPE_XOR;
766 * The VF would interpret this as VLAN stripping can be supported on either
767 * 0x8100 or 0x88a8 VLAN ethertypes. So when requesting VLAN stripping via
768 * VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 the specified ethertype will override
769 * the previously set value.
771 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1 - Used to tell the VF to insert and/or
772 * strip the VLAN tag using the L2TAG1 field of the Tx/Rx descriptors.
774 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2 - Used to tell the VF to insert hardware
775 * offloaded VLAN tags using the L2TAG2 field of the Tx descriptor.
777 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2 - Used to tell the VF to strip hardware
778 * offloaded VLAN tags using the L2TAG2_2 field of the Rx descriptor.
780 * VIRTCHNL_VLAN_PRIO - This field supports VLAN priority bits. This is used for
781 * VLAN filtering if the underlying PF supports it.
783 * VIRTCHNL_VLAN_TOGGLE_ALLOWED - This field is used to say whether a
784 * certain VLAN capability can be toggled. For example if the underlying PF/CP
785 * allows the VF to toggle VLAN filtering, stripping, and/or insertion it should
786 * set this bit along with the supported ethertypes.
788 enum virtchnl_vlan_support {
789 VIRTCHNL_VLAN_UNSUPPORTED = 0,
790 VIRTCHNL_VLAN_ETHERTYPE_8100 = 0x00000001,
791 VIRTCHNL_VLAN_ETHERTYPE_88A8 = 0x00000002,
792 VIRTCHNL_VLAN_ETHERTYPE_9100 = 0x00000004,
793 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1 = 0x00000100,
794 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2 = 0x00000200,
795 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 = 0x00000400,
796 VIRTCHNL_VLAN_PRIO = 0x01000000,
797 VIRTCHNL_VLAN_FILTER_MASK = 0x10000000,
798 VIRTCHNL_VLAN_ETHERTYPE_AND = 0x20000000,
799 VIRTCHNL_VLAN_ETHERTYPE_XOR = 0x40000000,
800 VIRTCHNL_VLAN_TOGGLE = 0x80000000
803 /* This structure is used as part of the VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS
804 * for filtering, insertion, and stripping capabilities.
806 * If only outer capabilities are supported (for filtering, insertion, and/or
807 * stripping) then this refers to the outer most or single VLAN from the VF's
810 * If only inner capabilities are supported (for filtering, insertion, and/or
811 * stripping) then this refers to the outer most or single VLAN from the VF's
812 * perspective. Functionally this is the same as if only outer capabilities are
813 * supported. The VF driver is just forced to use the inner fields when
814 * adding/deleting filters and enabling/disabling offloads (if supported).
816 * If both outer and inner capabilities are supported (for filtering, insertion,
817 * and/or stripping) then outer refers to the outer most or single VLAN and
818 * inner refers to the second VLAN, if it exists, in the packet.
820 * There is no support for tunneled VLAN offloads, so outer or inner are never
821 * referring to a tunneled packet from the VF's perspective.
823 struct virtchnl_vlan_supported_caps {
828 /* The PF populates these fields based on the supported VLAN filtering. If a
829 * field is VIRTCHNL_VLAN_UNSUPPORTED then it's not supported and the PF will
830 * reject any VIRTCHNL_OP_ADD_VLAN_V2 or VIRTCHNL_OP_DEL_VLAN_V2 messages using
831 * the unsupported fields.
833 * Also, a VF is only allowed to toggle its VLAN filtering setting if the
834 * VIRTCHNL_VLAN_TOGGLE bit is set.
836 * The ethertype(s) specified in the ethertype_init field are the ethertypes
837 * enabled for VLAN filtering. VLAN filtering in this case refers to the outer
838 * most VLAN from the VF's perspective. If both inner and outer filtering are
839 * allowed then ethertype_init only refers to the outer most VLAN as only
840 * VLAN ethertype supported for inner VLAN filtering is
841 * VIRTCHNL_VLAN_ETHERTYPE_8100. By default, inner VLAN filtering is disabled
842 * when both inner and outer filtering are allowed.
844 * The max_filters field tells the VF how many VLAN filters it's allowed to have
845 * at any one time. If it exceeds this amount and tries to add another filter,
846 * then the request will be rejected by the PF. To prevent failures, the VF
847 * should keep track of how many VLAN filters it has added and not attempt to
848 * add more than max_filters.
850 struct virtchnl_vlan_filtering_caps {
851 struct virtchnl_vlan_supported_caps filtering_support;
857 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vlan_filtering_caps);
859 /* This enum is used for the virtchnl_vlan_offload_caps structure to specify
860 * if the PF supports a different ethertype for stripping and insertion.
862 * VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION - The ethertype(s) specified
863 * for stripping affect the ethertype(s) specified for insertion and visa versa
864 * as well. If the VF tries to configure VLAN stripping via
865 * VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 with VIRTCHNL_VLAN_ETHERTYPE_8100 then
866 * that will be the ethertype for both stripping and insertion.
868 * VIRTCHNL_ETHERTYPE_MATCH_NOT_REQUIRED - The ethertype(s) specified for
869 * stripping do not affect the ethertype(s) specified for insertion and visa
872 enum virtchnl_vlan_ethertype_match {
873 VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION = 0,
874 VIRTCHNL_ETHERTYPE_MATCH_NOT_REQUIRED = 1,
877 /* The PF populates these fields based on the supported VLAN offloads. If a
878 * field is VIRTCHNL_VLAN_UNSUPPORTED then it's not supported and the PF will
879 * reject any VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 or
880 * VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2 messages using the unsupported fields.
882 * Also, a VF is only allowed to toggle its VLAN offload setting if the
883 * VIRTCHNL_VLAN_TOGGLE_ALLOWED bit is set.
885 * The VF driver needs to be aware of how the tags are stripped by hardware and
886 * inserted by the VF driver based on the level of offload support. The PF will
887 * populate these fields based on where the VLAN tags are expected to be
888 * offloaded via the VIRTHCNL_VLAN_TAG_LOCATION_* bits. The VF will need to
889 * interpret these fields. See the definition of the
890 * VIRTCHNL_VLAN_TAG_LOCATION_* bits above the virtchnl_vlan_support
893 struct virtchnl_vlan_offload_caps {
894 struct virtchnl_vlan_supported_caps stripping_support;
895 struct virtchnl_vlan_supported_caps insertion_support;
901 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_vlan_offload_caps);
903 /* VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS
904 * VF sends this message to determine its VLAN capabilities.
906 * PF will mark which capabilities it supports based on hardware support and
907 * current configuration. For example, if a port VLAN is configured the PF will
908 * not allow outer VLAN filtering, stripping, or insertion to be configured so
909 * it will block these features from the VF.
911 * The VF will need to cross reference its capabilities with the PFs
912 * capabilities in the response message from the PF to determine the VLAN
915 struct virtchnl_vlan_caps {
916 struct virtchnl_vlan_filtering_caps filtering;
917 struct virtchnl_vlan_offload_caps offloads;
920 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_vlan_caps);
922 struct virtchnl_vlan {
923 u16 tci; /* tci[15:13] = PCP and tci[11:0] = VID */
924 u16 tci_mask; /* only valid if VIRTCHNL_VLAN_FILTER_MASK set in
927 u16 tpid; /* 0x8100, 0x88a8, etc. and only type(s) set in
928 * filtering caps. Note that tpid here does not refer to
929 * VIRTCHNL_VLAN_ETHERTYPE_*, but it refers to the
930 * actual 2-byte VLAN TPID
935 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_vlan);
937 struct virtchnl_vlan_filter {
938 struct virtchnl_vlan inner;
939 struct virtchnl_vlan outer;
943 VIRTCHNL_CHECK_STRUCT_LEN(32, virtchnl_vlan_filter);
945 /* VIRTCHNL_OP_ADD_VLAN_V2
946 * VIRTCHNL_OP_DEL_VLAN_V2
948 * VF sends these messages to add/del one or more VLAN tag filters for Rx
951 * The PF attempts to add the filters and returns status.
953 * The VF should only ever attempt to add/del virtchnl_vlan_filter(s) using the
954 * supported fields negotiated via VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS.
956 struct virtchnl_vlan_filter_list_v2 {
960 struct virtchnl_vlan_filter filters[1];
963 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_vlan_filter_list_v2);
965 /* VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2
966 * VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2
967 * VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2
968 * VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2
970 * VF sends this message to enable or disable VLAN stripping or insertion. It
971 * also needs to specify an ethertype. The VF knows which VLAN ethertypes are
972 * allowed and whether or not it's allowed to enable/disable the specific
973 * offload via the VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS message. The VF needs to
974 * parse the virtchnl_vlan_caps.offloads fields to determine which offload
975 * messages are allowed.
977 * For example, if the PF populates the virtchnl_vlan_caps.offloads in the
978 * following manner the VF will be allowed to enable and/or disable 0x8100 inner
979 * VLAN insertion and/or stripping via the opcodes listed above. Inner in this
980 * case means the outer most or single VLAN from the VF's perspective. This is
981 * because no outer offloads are supported. See the comments above the
982 * virtchnl_vlan_supported_caps structure for more details.
984 * virtchnl_vlan_caps.offloads.stripping_support.inner =
985 * VIRTCHNL_VLAN_TOGGLE |
986 * VIRTCHNL_VLAN_ETHERTYPE_8100;
988 * virtchnl_vlan_caps.offloads.insertion_support.inner =
989 * VIRTCHNL_VLAN_TOGGLE |
990 * VIRTCHNL_VLAN_ETHERTYPE_8100;
992 * In order to enable inner (again note that in this case inner is the outer
993 * most or single VLAN from the VF's perspective) VLAN stripping for 0x8100
994 * VLANs, the VF would populate the virtchnl_vlan_setting structure in the
995 * following manner and send the VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 message.
997 * virtchnl_vlan_setting.inner_ethertype_setting =
998 * VIRTCHNL_VLAN_ETHERTYPE_8100;
1000 * virtchnl_vlan_setting.vport_id = vport_id or vsi_id assigned to the VF on
1003 * The reason that VLAN TPID(s) are not being used for the
1004 * outer_ethertype_setting and inner_ethertype_setting fields is because it's
1005 * possible a device could support VLAN insertion and/or stripping offload on
1006 * multiple ethertypes concurrently, so this method allows a VF to request
1007 * multiple ethertypes in one message using the virtchnl_vlan_support
1010 * For example, if the PF populates the virtchnl_vlan_caps.offloads in the
1011 * following manner the VF will be allowed to enable 0x8100 and 0x88a8 outer
1012 * VLAN insertion and stripping simultaneously. The
1013 * virtchnl_vlan_caps.offloads.ethertype_match field will also have to be
1014 * populated based on what the PF can support.
1016 * virtchnl_vlan_caps.offloads.stripping_support.outer =
1017 * VIRTCHNL_VLAN_TOGGLE |
1018 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1019 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
1020 * VIRTCHNL_VLAN_ETHERTYPE_AND;
1022 * virtchnl_vlan_caps.offloads.insertion_support.outer =
1023 * VIRTCHNL_VLAN_TOGGLE |
1024 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1025 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
1026 * VIRTCHNL_VLAN_ETHERTYPE_AND;
1028 * In order to enable outer VLAN stripping for 0x8100 and 0x88a8 VLANs, the VF
1029 * would populate the virthcnl_vlan_offload_structure in the following manner
1030 * and send the VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 message.
1032 * virtchnl_vlan_setting.outer_ethertype_setting =
1033 * VIRTHCNL_VLAN_ETHERTYPE_8100 |
1034 * VIRTHCNL_VLAN_ETHERTYPE_88A8;
1036 * virtchnl_vlan_setting.vport_id = vport_id or vsi_id assigned to the VF on
1039 * There is also the case where a PF and the underlying hardware can support
1040 * VLAN offloads on multiple ethertypes, but not concurrently. For example, if
1041 * the PF populates the virtchnl_vlan_caps.offloads in the following manner the
1042 * VF will be allowed to enable and/or disable 0x8100 XOR 0x88a8 outer VLAN
1043 * offloads. The ethertypes must match for stripping and insertion.
1045 * virtchnl_vlan_caps.offloads.stripping_support.outer =
1046 * VIRTCHNL_VLAN_TOGGLE |
1047 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1048 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
1049 * VIRTCHNL_VLAN_ETHERTYPE_XOR;
1051 * virtchnl_vlan_caps.offloads.insertion_support.outer =
1052 * VIRTCHNL_VLAN_TOGGLE |
1053 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1054 * VIRTCHNL_VLAN_ETHERTYPE_88A8 |
1055 * VIRTCHNL_VLAN_ETHERTYPE_XOR;
1057 * virtchnl_vlan_caps.offloads.ethertype_match =
1058 * VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
1060 * In order to enable outer VLAN stripping for 0x88a8 VLANs, the VF would
1061 * populate the virtchnl_vlan_setting structure in the following manner and send
1062 * the VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2. Also, this will change the
1063 * ethertype for VLAN insertion if it's enabled. So, for completeness, a
1064 * VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2 with the same ethertype should be sent.
1066 * virtchnl_vlan_setting.outer_ethertype_setting = VIRTHCNL_VLAN_ETHERTYPE_88A8;
1068 * virtchnl_vlan_setting.vport_id = vport_id or vsi_id assigned to the VF on
1071 * VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2
1072 * VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2
1074 * VF sends this message to enable or disable VLAN filtering. It also needs to
1075 * specify an ethertype. The VF knows which VLAN ethertypes are allowed and
1076 * whether or not it's allowed to enable/disable filtering via the
1077 * VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS message. The VF needs to
1078 * parse the virtchnl_vlan_caps.filtering fields to determine which, if any,
1079 * filtering messages are allowed.
1081 * For example, if the PF populates the virtchnl_vlan_caps.filtering in the
1082 * following manner the VF will be allowed to enable/disable 0x8100 and 0x88a8
1083 * outer VLAN filtering together. Note, that the VIRTCHNL_VLAN_ETHERTYPE_AND
1084 * means that all filtering ethertypes will to be enabled and disabled together
1085 * regardless of the request from the VF. This means that the underlying
1086 * hardware only supports VLAN filtering for all VLAN the specified ethertypes
1089 * virtchnl_vlan_caps.filtering.filtering_support.outer =
1090 * VIRTCHNL_VLAN_TOGGLE |
1091 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1092 * VIRTHCNL_VLAN_ETHERTYPE_88A8 |
1093 * VIRTCHNL_VLAN_ETHERTYPE_9100 |
1094 * VIRTCHNL_VLAN_ETHERTYPE_AND;
1096 * In order to enable outer VLAN filtering for 0x88a8 and 0x8100 VLANs (0x9100
1097 * VLANs aren't supported by the VF driver), the VF would populate the
1098 * virtchnl_vlan_setting structure in the following manner and send the
1099 * VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2. The same message format would be used
1100 * to disable outer VLAN filtering for 0x88a8 and 0x8100 VLANs, but the
1101 * VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2 opcode is used.
1103 * virtchnl_vlan_setting.outer_ethertype_setting =
1104 * VIRTCHNL_VLAN_ETHERTYPE_8100 |
1105 * VIRTCHNL_VLAN_ETHERTYPE_88A8;
1108 struct virtchnl_vlan_setting {
1109 u32 outer_ethertype_setting;
1110 u32 inner_ethertype_setting;
1115 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vlan_setting);
1117 /* VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE
1118 * VF sends VSI id and flags.
1119 * PF returns status code in retval.
1120 * Note: we assume that broadcast accept mode is always enabled.
1122 struct virtchnl_promisc_info {
1127 VIRTCHNL_CHECK_STRUCT_LEN(4, virtchnl_promisc_info);
1129 #define FLAG_VF_UNICAST_PROMISC 0x00000001
1130 #define FLAG_VF_MULTICAST_PROMISC 0x00000002
1132 /* VIRTCHNL_OP_GET_STATS
1133 * VF sends this message to request stats for the selected VSI. VF uses
1134 * the virtchnl_queue_select struct to specify the VSI. The queue_id
1135 * field is ignored by the PF.
1137 * PF replies with struct virtchnl_eth_stats in an external buffer.
1140 struct virtchnl_eth_stats {
1141 u64 rx_bytes; /* received bytes */
1142 u64 rx_unicast; /* received unicast pkts */
1143 u64 rx_multicast; /* received multicast pkts */
1144 u64 rx_broadcast; /* received broadcast pkts */
1146 u64 rx_unknown_protocol;
1147 u64 tx_bytes; /* transmitted bytes */
1148 u64 tx_unicast; /* transmitted unicast pkts */
1149 u64 tx_multicast; /* transmitted multicast pkts */
1150 u64 tx_broadcast; /* transmitted broadcast pkts */
1155 /* VIRTCHNL_OP_CONFIG_RSS_KEY
1156 * VIRTCHNL_OP_CONFIG_RSS_LUT
1157 * VF sends these messages to configure RSS. Only supported if both PF
1158 * and VF drivers set the VIRTCHNL_VF_OFFLOAD_RSS_PF bit during
1159 * configuration negotiation. If this is the case, then the RSS fields in
1160 * the VF resource struct are valid.
1161 * Both the key and LUT are initialized to 0 by the PF, meaning that
1162 * RSS is effectively disabled until set up by the VF.
1164 struct virtchnl_rss_key {
1167 u8 key[1]; /* RSS hash key, packed bytes */
1170 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_key);
1172 struct virtchnl_rss_lut {
1175 u8 lut[1]; /* RSS lookup table */
1178 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_lut);
1180 /* VIRTCHNL_OP_GET_RSS_HENA_CAPS
1181 * VIRTCHNL_OP_SET_RSS_HENA
1182 * VF sends these messages to get and set the hash filter enable bits for RSS.
1183 * By default, the PF sets these to all possible traffic types that the
1184 * hardware supports. The VF can query this value if it wants to change the
1185 * traffic types that are hashed by the hardware.
1187 struct virtchnl_rss_hena {
1191 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_rss_hena);
1193 /* Type of RSS algorithm */
1194 enum virtchnl_rss_algorithm {
1195 VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC = 0,
1196 VIRTCHNL_RSS_ALG_XOR_ASYMMETRIC = 1,
1197 VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC = 2,
1198 VIRTCHNL_RSS_ALG_XOR_SYMMETRIC = 3,
1201 /* This is used by PF driver to enforce how many channels can be supported.
1202 * When ADQ_V2 capability is negotiated, it will allow 16 channels otherwise
1203 * PF driver will allow only max 4 channels
1205 #define VIRTCHNL_MAX_ADQ_CHANNELS 4
1206 #define VIRTCHNL_MAX_ADQ_V2_CHANNELS 16
1208 /* VIRTCHNL_OP_ENABLE_CHANNELS
1209 * VIRTCHNL_OP_DISABLE_CHANNELS
1210 * VF sends these messages to enable or disable channels based on
1211 * the user specified queue count and queue offset for each traffic class.
1212 * This struct encompasses all the information that the PF needs from
1213 * VF to create a channel.
1215 struct virtchnl_channel_info {
1216 u16 count; /* number of queues in a channel */
1217 u16 offset; /* queues in a channel start from 'offset' */
1222 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_channel_info);
1224 struct virtchnl_tc_info {
1227 struct virtchnl_channel_info list[1];
1230 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_tc_info);
1232 /* VIRTCHNL_ADD_CLOUD_FILTER
1233 * VIRTCHNL_DEL_CLOUD_FILTER
1234 * VF sends these messages to add or delete a cloud filter based on the
1235 * user specified match and action filters. These structures encompass
1236 * all the information that the PF needs from the VF to add/delete a
1240 struct virtchnl_l4_spec {
1241 u8 src_mac[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
1242 u8 dst_mac[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
1243 /* vlan_prio is part of this 16 bit field even from OS perspective
1244 * vlan_id:12 is actual vlan_id, then vlanid:bit14..12 is vlan_prio
1245 * in future, when decided to offload vlan_prio, pass that information
1246 * as part of the "vlan_id" field, Bit14..12
1249 __be16 pad; /* reserved for future use */
1256 VIRTCHNL_CHECK_STRUCT_LEN(52, virtchnl_l4_spec);
1258 union virtchnl_flow_spec {
1259 struct virtchnl_l4_spec tcp_spec;
1260 u8 buffer[128]; /* reserved for future use */
1263 VIRTCHNL_CHECK_UNION_LEN(128, virtchnl_flow_spec);
1265 enum virtchnl_action {
1267 VIRTCHNL_ACTION_DROP = 0,
1268 VIRTCHNL_ACTION_TC_REDIRECT,
1269 VIRTCHNL_ACTION_PASSTHRU,
1270 VIRTCHNL_ACTION_QUEUE,
1271 VIRTCHNL_ACTION_Q_REGION,
1272 VIRTCHNL_ACTION_MARK,
1273 VIRTCHNL_ACTION_COUNT,
1276 enum virtchnl_flow_type {
1278 VIRTCHNL_TCP_V4_FLOW = 0,
1279 VIRTCHNL_TCP_V6_FLOW,
1280 VIRTCHNL_UDP_V4_FLOW,
1281 VIRTCHNL_UDP_V6_FLOW,
1284 struct virtchnl_filter {
1285 union virtchnl_flow_spec data;
1286 union virtchnl_flow_spec mask;
1288 /* see enum virtchnl_flow_type */
1291 /* see enum virtchnl_action */
1297 VIRTCHNL_CHECK_STRUCT_LEN(272, virtchnl_filter);
1299 struct virtchnl_shaper_bw {
1305 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_shaper_bw);
1307 /* VIRTCHNL_OP_DCF_GET_VSI_MAP
1308 * VF sends this message to get VSI mapping table.
1309 * PF responds with an indirect message containing VF's
1311 * The index of vf_vsi array is the logical VF ID, the
1312 * value of vf_vsi array is the VF's HW VSI ID with its
1313 * valid configuration.
1315 struct virtchnl_dcf_vsi_map {
1316 u16 pf_vsi; /* PF's HW VSI ID */
1317 u16 num_vfs; /* The actual number of VFs allocated */
1318 #define VIRTCHNL_DCF_VF_VSI_ID_S 0
1319 #define VIRTCHNL_DCF_VF_VSI_ID_M (0xFFF << VIRTCHNL_DCF_VF_VSI_ID_S)
1320 #define VIRTCHNL_DCF_VF_VSI_VALID BIT(15)
1324 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_dcf_vsi_map);
1326 #define PKG_NAME_SIZE 32
1329 struct pkg_version {
1336 VIRTCHNL_CHECK_STRUCT_LEN(4, pkg_version);
1338 struct virtchnl_pkg_info {
1339 struct pkg_version pkg_ver;
1341 char pkg_name[PKG_NAME_SIZE];
1345 VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_pkg_info);
1347 /* VIRTCHNL_OP_DCF_VLAN_OFFLOAD
1348 * DCF negotiates the VIRTCHNL_VF_OFFLOAD_VLAN_V2 capability firstly to get
1349 * the double VLAN configuration, then DCF sends this message to configure the
1350 * outer or inner VLAN offloads (insertion and strip) for the target VF.
1352 struct virtchnl_dcf_vlan_offload {
1356 #define VIRTCHNL_DCF_VLAN_TYPE_S 0
1357 #define VIRTCHNL_DCF_VLAN_TYPE_M \
1358 (0x1 << VIRTCHNL_DCF_VLAN_TYPE_S)
1359 #define VIRTCHNL_DCF_VLAN_TYPE_INNER 0x0
1360 #define VIRTCHNL_DCF_VLAN_TYPE_OUTER 0x1
1361 #define VIRTCHNL_DCF_VLAN_INSERT_MODE_S 1
1362 #define VIRTCHNL_DCF_VLAN_INSERT_MODE_M \
1363 (0x7 << VIRTCHNL_DCF_VLAN_INSERT_MODE_S)
1364 #define VIRTCHNL_DCF_VLAN_INSERT_DISABLE 0x1
1365 #define VIRTCHNL_DCF_VLAN_INSERT_PORT_BASED 0x2
1366 #define VIRTCHNL_DCF_VLAN_INSERT_VIA_TX_DESC 0x3
1367 #define VIRTCHNL_DCF_VLAN_STRIP_MODE_S 4
1368 #define VIRTCHNL_DCF_VLAN_STRIP_MODE_M \
1369 (0x7 << VIRTCHNL_DCF_VLAN_STRIP_MODE_S)
1370 #define VIRTCHNL_DCF_VLAN_STRIP_DISABLE 0x1
1371 #define VIRTCHNL_DCF_VLAN_STRIP_ONLY 0x2
1372 #define VIRTCHNL_DCF_VLAN_STRIP_INTO_RX_DESC 0x3
1377 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_dcf_vlan_offload);
1379 struct virtchnl_dcf_bw_cfg {
1381 #define VIRTCHNL_DCF_BW_CIR BIT(0)
1382 #define VIRTCHNL_DCF_BW_PIR BIT(1)
1385 enum virtchnl_bw_limit_type type;
1387 struct virtchnl_shaper_bw shaper;
1392 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_dcf_bw_cfg);
1394 /* VIRTCHNL_OP_DCF_CONFIG_BW
1395 * VF send this message to set the bandwidth configuration of each
1396 * TC with a specific vf id. The flag node_type is to indicate that
1397 * this message is to configure VSI node or TC node bandwidth.
1399 struct virtchnl_dcf_bw_cfg_list {
1402 #define VIRTCHNL_DCF_TARGET_TC_BW 0
1403 #define VIRTCHNL_DCF_TARGET_VF_BW 1
1405 struct virtchnl_dcf_bw_cfg cfg[1];
1408 VIRTCHNL_CHECK_STRUCT_LEN(44, virtchnl_dcf_bw_cfg_list);
1410 struct virtchnl_supported_rxdids {
1411 /* see enum virtchnl_rx_desc_id_bitmasks */
1412 u64 supported_rxdids;
1415 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_supported_rxdids);
1417 /* VIRTCHNL_OP_EVENT
1418 * PF sends this message to inform the VF driver of events that may affect it.
1419 * No direct response is expected from the VF, though it may generate other
1420 * messages in response to this one.
1422 enum virtchnl_event_codes {
1423 VIRTCHNL_EVENT_UNKNOWN = 0,
1424 VIRTCHNL_EVENT_LINK_CHANGE,
1425 VIRTCHNL_EVENT_RESET_IMPENDING,
1426 VIRTCHNL_EVENT_PF_DRIVER_CLOSE,
1427 VIRTCHNL_EVENT_DCF_VSI_MAP_UPDATE,
1430 #define PF_EVENT_SEVERITY_INFO 0
1431 #define PF_EVENT_SEVERITY_ATTENTION 1
1432 #define PF_EVENT_SEVERITY_ACTION_REQUIRED 2
1433 #define PF_EVENT_SEVERITY_CERTAIN_DOOM 255
1435 struct virtchnl_pf_event {
1436 /* see enum virtchnl_event_codes */
1439 /* If the PF driver does not support the new speed reporting
1440 * capabilities then use link_event else use link_event_adv to
1441 * get the speed and link information. The ability to understand
1442 * new speeds is indicated by setting the capability flag
1443 * VIRTCHNL_VF_CAP_ADV_LINK_SPEED in vf_cap_flags parameter
1444 * in virtchnl_vf_resource struct and can be used to determine
1445 * which link event struct to use below.
1448 enum virtchnl_link_speed link_speed;
1452 /* link_speed provided in Mbps */
1465 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_pf_event);
1468 /* VF reset states - these are written into the RSTAT register:
1469 * VFGEN_RSTAT on the VF
1470 * When the PF initiates a reset, it writes 0
1471 * When the reset is complete, it writes 1
1472 * When the PF detects that the VF has recovered, it writes 2
1473 * VF checks this register periodically to determine if a reset has occurred,
1474 * then polls it to know when the reset is complete.
1475 * If either the PF or VF reads the register while the hardware
1476 * is in a reset state, it will return DEADBEEF, which, when masked
1479 enum virtchnl_vfr_states {
1480 VIRTCHNL_VFR_INPROGRESS = 0,
1481 VIRTCHNL_VFR_COMPLETED,
1482 VIRTCHNL_VFR_VFACTIVE,
1485 #define VIRTCHNL_MAX_NUM_PROTO_HDRS 32
1486 #define PROTO_HDR_SHIFT 5
1487 #define PROTO_HDR_FIELD_START(proto_hdr_type) \
1488 (proto_hdr_type << PROTO_HDR_SHIFT)
1489 #define PROTO_HDR_FIELD_MASK ((1UL << PROTO_HDR_SHIFT) - 1)
1491 /* VF use these macros to configure each protocol header.
1492 * Specify which protocol headers and protocol header fields base on
1493 * virtchnl_proto_hdr_type and virtchnl_proto_hdr_field.
1494 * @param hdr: a struct of virtchnl_proto_hdr
1495 * @param hdr_type: ETH/IPV4/TCP, etc
1496 * @param field: SRC/DST/TEID/SPI, etc
1498 #define VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr, field) \
1499 ((hdr)->field_selector |= BIT((field) & PROTO_HDR_FIELD_MASK))
1500 #define VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr, field) \
1501 ((hdr)->field_selector &= ~BIT((field) & PROTO_HDR_FIELD_MASK))
1502 #define VIRTCHNL_TEST_PROTO_HDR_FIELD(hdr, val) \
1503 ((hdr)->field_selector & BIT((val) & PROTO_HDR_FIELD_MASK))
1504 #define VIRTCHNL_GET_PROTO_HDR_FIELD(hdr) ((hdr)->field_selector)
1506 #define VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, hdr_type, field) \
1507 (VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr, \
1508 VIRTCHNL_PROTO_HDR_ ## hdr_type ## _ ## field))
1509 #define VIRTCHNL_DEL_PROTO_HDR_FIELD_BIT(hdr, hdr_type, field) \
1510 (VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr, \
1511 VIRTCHNL_PROTO_HDR_ ## hdr_type ## _ ## field))
1513 #define VIRTCHNL_SET_PROTO_HDR_TYPE(hdr, hdr_type) \
1514 ((hdr)->type = VIRTCHNL_PROTO_HDR_ ## hdr_type)
1515 #define VIRTCHNL_GET_PROTO_HDR_TYPE(hdr) \
1516 (((hdr)->type) >> PROTO_HDR_SHIFT)
1517 #define VIRTCHNL_TEST_PROTO_HDR_TYPE(hdr, val) \
1518 ((hdr)->type == ((val) >> PROTO_HDR_SHIFT))
1519 #define VIRTCHNL_TEST_PROTO_HDR(hdr, val) \
1520 (VIRTCHNL_TEST_PROTO_HDR_TYPE(hdr, val) && \
1521 VIRTCHNL_TEST_PROTO_HDR_FIELD(hdr, val))
1523 /* Protocol header type within a packet segment. A segment consists of one or
1524 * more protocol headers that make up a logical group of protocol headers. Each
1525 * logical group of protocol headers encapsulates or is encapsulated using/by
1526 * tunneling or encapsulation protocols for network virtualization.
1528 enum virtchnl_proto_hdr_type {
1529 VIRTCHNL_PROTO_HDR_NONE,
1530 VIRTCHNL_PROTO_HDR_ETH,
1531 VIRTCHNL_PROTO_HDR_S_VLAN,
1532 VIRTCHNL_PROTO_HDR_C_VLAN,
1533 VIRTCHNL_PROTO_HDR_IPV4,
1534 VIRTCHNL_PROTO_HDR_IPV6,
1535 VIRTCHNL_PROTO_HDR_TCP,
1536 VIRTCHNL_PROTO_HDR_UDP,
1537 VIRTCHNL_PROTO_HDR_SCTP,
1538 VIRTCHNL_PROTO_HDR_GTPU_IP,
1539 VIRTCHNL_PROTO_HDR_GTPU_EH,
1540 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
1541 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
1542 VIRTCHNL_PROTO_HDR_PPPOE,
1543 VIRTCHNL_PROTO_HDR_L2TPV3,
1544 VIRTCHNL_PROTO_HDR_ESP,
1545 VIRTCHNL_PROTO_HDR_AH,
1546 VIRTCHNL_PROTO_HDR_PFCP,
1547 VIRTCHNL_PROTO_HDR_GTPC,
1548 VIRTCHNL_PROTO_HDR_ECPRI,
1549 VIRTCHNL_PROTO_HDR_L2TPV2,
1550 VIRTCHNL_PROTO_HDR_PPP,
1551 /* IPv4 and IPv6 Fragment header types are only associated to
1552 * VIRTCHNL_PROTO_HDR_IPV4 and VIRTCHNL_PROTO_HDR_IPV6 respectively,
1553 * cannot be used independently.
1555 VIRTCHNL_PROTO_HDR_IPV4_FRAG,
1556 VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG,
1557 VIRTCHNL_PROTO_HDR_GRE,
1560 /* Protocol header field within a protocol header. */
1561 enum virtchnl_proto_hdr_field {
1563 VIRTCHNL_PROTO_HDR_ETH_SRC =
1564 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ETH),
1565 VIRTCHNL_PROTO_HDR_ETH_DST,
1566 VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE,
1568 VIRTCHNL_PROTO_HDR_S_VLAN_ID =
1569 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_S_VLAN),
1571 VIRTCHNL_PROTO_HDR_C_VLAN_ID =
1572 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_C_VLAN),
1574 VIRTCHNL_PROTO_HDR_IPV4_SRC =
1575 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV4),
1576 VIRTCHNL_PROTO_HDR_IPV4_DST,
1577 VIRTCHNL_PROTO_HDR_IPV4_DSCP,
1578 VIRTCHNL_PROTO_HDR_IPV4_TTL,
1579 VIRTCHNL_PROTO_HDR_IPV4_PROT,
1580 VIRTCHNL_PROTO_HDR_IPV4_CHKSUM,
1582 VIRTCHNL_PROTO_HDR_IPV6_SRC =
1583 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV6),
1584 VIRTCHNL_PROTO_HDR_IPV6_DST,
1585 VIRTCHNL_PROTO_HDR_IPV6_TC,
1586 VIRTCHNL_PROTO_HDR_IPV6_HOP_LIMIT,
1587 VIRTCHNL_PROTO_HDR_IPV6_PROT,
1589 VIRTCHNL_PROTO_HDR_IPV6_PREFIX32_SRC,
1590 VIRTCHNL_PROTO_HDR_IPV6_PREFIX32_DST,
1591 VIRTCHNL_PROTO_HDR_IPV6_PREFIX40_SRC,
1592 VIRTCHNL_PROTO_HDR_IPV6_PREFIX40_DST,
1593 VIRTCHNL_PROTO_HDR_IPV6_PREFIX48_SRC,
1594 VIRTCHNL_PROTO_HDR_IPV6_PREFIX48_DST,
1595 VIRTCHNL_PROTO_HDR_IPV6_PREFIX56_SRC,
1596 VIRTCHNL_PROTO_HDR_IPV6_PREFIX56_DST,
1597 VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_SRC,
1598 VIRTCHNL_PROTO_HDR_IPV6_PREFIX64_DST,
1599 VIRTCHNL_PROTO_HDR_IPV6_PREFIX96_SRC,
1600 VIRTCHNL_PROTO_HDR_IPV6_PREFIX96_DST,
1602 VIRTCHNL_PROTO_HDR_TCP_SRC_PORT =
1603 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_TCP),
1604 VIRTCHNL_PROTO_HDR_TCP_DST_PORT,
1605 VIRTCHNL_PROTO_HDR_TCP_CHKSUM,
1607 VIRTCHNL_PROTO_HDR_UDP_SRC_PORT =
1608 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_UDP),
1609 VIRTCHNL_PROTO_HDR_UDP_DST_PORT,
1610 VIRTCHNL_PROTO_HDR_UDP_CHKSUM,
1612 VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT =
1613 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_SCTP),
1614 VIRTCHNL_PROTO_HDR_SCTP_DST_PORT,
1615 VIRTCHNL_PROTO_HDR_SCTP_CHKSUM,
1617 VIRTCHNL_PROTO_HDR_GTPU_IP_TEID =
1618 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_IP),
1620 VIRTCHNL_PROTO_HDR_GTPU_EH_PDU =
1621 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_EH),
1622 VIRTCHNL_PROTO_HDR_GTPU_EH_QFI,
1624 VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID =
1625 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_PPPOE),
1627 VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID =
1628 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_L2TPV3),
1630 VIRTCHNL_PROTO_HDR_ESP_SPI =
1631 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ESP),
1633 VIRTCHNL_PROTO_HDR_AH_SPI =
1634 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_AH),
1636 VIRTCHNL_PROTO_HDR_PFCP_S_FIELD =
1637 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_PFCP),
1638 VIRTCHNL_PROTO_HDR_PFCP_SEID,
1640 VIRTCHNL_PROTO_HDR_GTPC_TEID =
1641 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPC),
1643 VIRTCHNL_PROTO_HDR_ECPRI_MSG_TYPE =
1644 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_ECPRI),
1645 VIRTCHNL_PROTO_HDR_ECPRI_PC_RTC_ID,
1646 /* IPv4 Dummy Fragment */
1647 VIRTCHNL_PROTO_HDR_IPV4_FRAG_PKID =
1648 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV4_FRAG),
1649 /* IPv6 Extension Fragment */
1650 VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG_PKID =
1651 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_IPV6_EH_FRAG),
1653 VIRTCHNL_PROTO_HDR_GTPU_DWN_QFI =
1654 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN),
1655 VIRTCHNL_PROTO_HDR_GTPU_UP_QFI =
1656 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP),
1658 VIRTCHNL_PROTO_HDR_L2TPV2_SESS_ID =
1659 PROTO_HDR_FIELD_START(VIRTCHNL_PROTO_HDR_L2TPV2),
1660 VIRTCHNL_PROTO_HDR_L2TPV2_LEN_SESS_ID,
1663 struct virtchnl_proto_hdr {
1664 /* see enum virtchnl_proto_hdr_type */
1666 u32 field_selector; /* a bit mask to select field for header type */
1669 * binary buffer in network order for specific header type.
1670 * For example, if type = VIRTCHNL_PROTO_HDR_IPV4, a IPv4
1671 * header is expected to be copied into the buffer.
1675 VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_proto_hdr);
1677 struct virtchnl_proto_hdrs {
1680 * specify where protocol header start from.
1681 * 0 - from the outer layer
1682 * 1 - from the first inner layer
1683 * 2 - from the second inner layer
1686 int count; /* the proto layers must < VIRTCHNL_MAX_NUM_PROTO_HDRS */
1687 struct virtchnl_proto_hdr proto_hdr[VIRTCHNL_MAX_NUM_PROTO_HDRS];
1690 VIRTCHNL_CHECK_STRUCT_LEN(2312, virtchnl_proto_hdrs);
1692 struct virtchnl_rss_cfg {
1693 struct virtchnl_proto_hdrs proto_hdrs; /* protocol headers */
1695 /* see enum virtchnl_rss_algorithm; rss algorithm type */
1697 u8 reserved[128]; /* reserve for future */
1700 VIRTCHNL_CHECK_STRUCT_LEN(2444, virtchnl_rss_cfg);
1702 /* action configuration for FDIR */
1703 struct virtchnl_filter_action {
1704 /* see enum virtchnl_action type */
1707 /* used for queue and qgroup action */
1712 /* used for count action */
1714 /* share counter ID with other flow rules */
1716 u32 id; /* counter ID */
1718 /* used for mark action */
1724 VIRTCHNL_CHECK_STRUCT_LEN(36, virtchnl_filter_action);
1726 #define VIRTCHNL_MAX_NUM_ACTIONS 8
1728 struct virtchnl_filter_action_set {
1729 /* action number must be less then VIRTCHNL_MAX_NUM_ACTIONS */
1731 struct virtchnl_filter_action actions[VIRTCHNL_MAX_NUM_ACTIONS];
1734 VIRTCHNL_CHECK_STRUCT_LEN(292, virtchnl_filter_action_set);
1736 /* pattern and action for FDIR rule */
1737 struct virtchnl_fdir_rule {
1738 struct virtchnl_proto_hdrs proto_hdrs;
1739 struct virtchnl_filter_action_set action_set;
1742 VIRTCHNL_CHECK_STRUCT_LEN(2604, virtchnl_fdir_rule);
1744 /* Status returned to VF after VF requests FDIR commands
1745 * VIRTCHNL_FDIR_SUCCESS
1746 * VF FDIR related request is successfully done by PF
1747 * The request can be OP_ADD/DEL/QUERY_FDIR_FILTER.
1749 * VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE
1750 * OP_ADD_FDIR_FILTER request is failed due to no Hardware resource.
1752 * VIRTCHNL_FDIR_FAILURE_RULE_EXIST
1753 * OP_ADD_FDIR_FILTER request is failed due to the rule is already existed.
1755 * VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT
1756 * OP_ADD_FDIR_FILTER request is failed due to conflict with existing rule.
1758 * VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST
1759 * OP_DEL_FDIR_FILTER request is failed due to this rule doesn't exist.
1761 * VIRTCHNL_FDIR_FAILURE_RULE_INVALID
1762 * OP_ADD_FDIR_FILTER request is failed due to parameters validation
1763 * or HW doesn't support.
1765 * VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT
1766 * OP_ADD/DEL_FDIR_FILTER request is failed due to timing out
1769 * VIRTCHNL_FDIR_FAILURE_QUERY_INVALID
1770 * OP_QUERY_FDIR_FILTER request is failed due to parameters validation,
1771 * for example, VF query counter of a rule who has no counter action.
1773 enum virtchnl_fdir_prgm_status {
1774 VIRTCHNL_FDIR_SUCCESS = 0,
1775 VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE,
1776 VIRTCHNL_FDIR_FAILURE_RULE_EXIST,
1777 VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT,
1778 VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST,
1779 VIRTCHNL_FDIR_FAILURE_RULE_INVALID,
1780 VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT,
1781 VIRTCHNL_FDIR_FAILURE_QUERY_INVALID,
1784 /* VIRTCHNL_OP_ADD_FDIR_FILTER
1785 * VF sends this request to PF by filling out vsi_id,
1786 * validate_only and rule_cfg. PF will return flow_id
1787 * if the request is successfully done and return add_status to VF.
1789 struct virtchnl_fdir_add {
1790 u16 vsi_id; /* INPUT */
1792 * 1 for validating a fdir rule, 0 for creating a fdir rule.
1793 * Validate and create share one ops: VIRTCHNL_OP_ADD_FDIR_FILTER.
1795 u16 validate_only; /* INPUT */
1796 u32 flow_id; /* OUTPUT */
1797 struct virtchnl_fdir_rule rule_cfg; /* INPUT */
1799 /* see enum virtchnl_fdir_prgm_status; OUTPUT */
1803 VIRTCHNL_CHECK_STRUCT_LEN(2616, virtchnl_fdir_add);
1805 /* VIRTCHNL_OP_DEL_FDIR_FILTER
1806 * VF sends this request to PF by filling out vsi_id
1807 * and flow_id. PF will return del_status to VF.
1809 struct virtchnl_fdir_del {
1810 u16 vsi_id; /* INPUT */
1812 u32 flow_id; /* INPUT */
1814 /* see enum virtchnl_fdir_prgm_status; OUTPUT */
1818 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_fdir_del);
1820 /* VIRTCHNL_OP_GET_QOS_CAPS
1821 * VF sends this message to get its QoS Caps, such as
1822 * TC number, Arbiter and Bandwidth.
1824 struct virtchnl_qos_cap_elem {
1827 #define VIRTCHNL_ABITER_STRICT 0
1828 #define VIRTCHNL_ABITER_ETS 2
1830 #define VIRTCHNL_STRICT_WEIGHT 1
1832 enum virtchnl_bw_limit_type type;
1834 struct virtchnl_shaper_bw shaper;
1839 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_qos_cap_elem);
1841 struct virtchnl_qos_cap_list {
1844 struct virtchnl_qos_cap_elem cap[1];
1847 VIRTCHNL_CHECK_STRUCT_LEN(44, virtchnl_qos_cap_list);
1849 /* VIRTCHNL_OP_CONFIG_QUEUE_TC_MAP
1850 * VF sends message virtchnl_queue_tc_mapping to set queue to tc
1851 * mapping for all the Tx and Rx queues with a specified VSI, and
1852 * would get response about bitmap of valid user priorities
1853 * associated with queues.
1855 struct virtchnl_queue_tc_mapping {
1858 u16 num_queue_pairs;
1866 #define VIRTCHNL_USER_PRIO_TYPE_UP 0
1867 #define VIRTCHNL_USER_PRIO_TYPE_DSCP 1
1869 u16 valid_prio_bitmap;
1874 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_tc_mapping);
1876 /* VIRTCHNL_OP_CONFIG_QUEUE_BW */
1877 struct virtchnl_queue_bw {
1881 struct virtchnl_shaper_bw shaper;
1884 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_bw);
1886 struct virtchnl_queues_bw_cfg {
1889 struct virtchnl_queue_bw cfg[1];
1892 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_queues_bw_cfg);
1894 /* TX and RX queue types are valid in legacy as well as split queue models.
1895 * With Split Queue model, 2 additional types are introduced - TX_COMPLETION
1896 * and RX_BUFFER. In split queue model, RX corresponds to the queue where HW
1897 * posts completions.
1899 enum virtchnl_queue_type {
1900 VIRTCHNL_QUEUE_TYPE_TX = 0,
1901 VIRTCHNL_QUEUE_TYPE_RX = 1,
1902 VIRTCHNL_QUEUE_TYPE_TX_COMPLETION = 2,
1903 VIRTCHNL_QUEUE_TYPE_RX_BUFFER = 3,
1904 VIRTCHNL_QUEUE_TYPE_CONFIG_TX = 4,
1905 VIRTCHNL_QUEUE_TYPE_CONFIG_RX = 5
1909 /* structure to specify a chunk of contiguous queues */
1910 struct virtchnl_queue_chunk {
1911 /* see enum virtchnl_queue_type */
1917 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_queue_chunk);
1919 /* structure to specify several chunks of contiguous queues */
1920 struct virtchnl_queue_chunks {
1923 struct virtchnl_queue_chunk chunks[1];
1926 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_chunks);
1929 /* VIRTCHNL_OP_ENABLE_QUEUES_V2
1930 * VIRTCHNL_OP_DISABLE_QUEUES_V2
1931 * VIRTCHNL_OP_DEL_QUEUES
1933 * If VIRTCHNL_CAP_EXT_FEATURES was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
1934 * then all of these ops are available.
1936 * If VIRTCHNL_VF_LARGE_NUM_QPAIRS was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
1937 * then VIRTCHNL_OP_ENABLE_QUEUES_V2 and VIRTCHNL_OP_DISABLE_QUEUES_V2 are
1940 * PF sends these messages to enable, disable or delete queues specified in
1941 * chunks. PF sends virtchnl_del_ena_dis_queues struct to specify the queues
1942 * to be enabled/disabled/deleted. Also applicable to single queue RX or
1943 * TX. CP performs requested action and returns status.
1945 struct virtchnl_del_ena_dis_queues {
1948 struct virtchnl_queue_chunks chunks;
1951 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_del_ena_dis_queues);
1953 /* Virtchannel interrupt throttling rate index */
1954 enum virtchnl_itr_idx {
1955 VIRTCHNL_ITR_IDX_0 = 0,
1956 VIRTCHNL_ITR_IDX_1 = 1,
1957 VIRTCHNL_ITR_IDX_NO_ITR = 3,
1960 /* Queue to vector mapping */
1961 struct virtchnl_queue_vector {
1966 /* see enum virtchnl_itr_idx */
1969 /* see enum virtchnl_queue_type */
1973 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_queue_vector);
1975 /* VIRTCHNL_OP_MAP_QUEUE_VECTOR
1976 * VIRTCHNL_OP_UNMAP_QUEUE_VECTOR
1978 * If VIRTCHNL_CAP_EXT_FEATURES was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
1979 * then all of these ops are available.
1981 * If VIRTCHNL_VF_LARGE_NUM_QPAIRS was negotiated in VIRTCHNL_OP_GET_VF_RESOURCES
1982 * then only VIRTCHNL_OP_MAP_QUEUE_VECTOR is available.
1984 * PF sends this message to map or unmap queues to vectors and ITR index
1985 * registers. External data buffer contains virtchnl_queue_vector_maps structure
1986 * that contains num_qv_maps of virtchnl_queue_vector structures.
1987 * CP maps the requested queue vector maps after validating the queue and vector
1988 * ids and returns a status code.
1990 struct virtchnl_queue_vector_maps {
1994 struct virtchnl_queue_vector qv_maps[1];
1997 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_queue_vector_maps);
2000 /* Since VF messages are limited by u16 size, precalculate the maximum possible
2001 * values of nested elements in virtchnl structures that virtual channel can
2002 * possibly handle in a single message.
2004 enum virtchnl_vector_limits {
2005 VIRTCHNL_OP_CONFIG_VSI_QUEUES_MAX =
2006 ((u16)(~0) - sizeof(struct virtchnl_vsi_queue_config_info)) /
2007 sizeof(struct virtchnl_queue_pair_info),
2009 VIRTCHNL_OP_CONFIG_IRQ_MAP_MAX =
2010 ((u16)(~0) - sizeof(struct virtchnl_irq_map_info)) /
2011 sizeof(struct virtchnl_vector_map),
2013 VIRTCHNL_OP_ADD_DEL_ETH_ADDR_MAX =
2014 ((u16)(~0) - sizeof(struct virtchnl_ether_addr_list)) /
2015 sizeof(struct virtchnl_ether_addr),
2017 VIRTCHNL_OP_ADD_DEL_VLAN_MAX =
2018 ((u16)(~0) - sizeof(struct virtchnl_vlan_filter_list)) /
2022 VIRTCHNL_OP_ENABLE_CHANNELS_MAX =
2023 ((u16)(~0) - sizeof(struct virtchnl_tc_info)) /
2024 sizeof(struct virtchnl_channel_info),
2026 VIRTCHNL_OP_ENABLE_DISABLE_DEL_QUEUES_V2_MAX =
2027 ((u16)(~0) - sizeof(struct virtchnl_del_ena_dis_queues)) /
2028 sizeof(struct virtchnl_queue_chunk),
2030 VIRTCHNL_OP_MAP_UNMAP_QUEUE_VECTOR_MAX =
2031 ((u16)(~0) - sizeof(struct virtchnl_queue_vector_maps)) /
2032 sizeof(struct virtchnl_queue_vector),
2034 VIRTCHNL_OP_ADD_DEL_VLAN_V2_MAX =
2035 ((u16)(~0) - sizeof(struct virtchnl_vlan_filter_list_v2)) /
2036 sizeof(struct virtchnl_vlan_filter),
2040 * virtchnl_vc_validate_vf_msg
2041 * @ver: Virtchnl version info
2042 * @v_opcode: Opcode for the message
2043 * @msg: pointer to the msg buffer
2044 * @msglen: msg length
2046 * validate msg format against struct for each opcode
2049 virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,
2050 u8 *msg, u16 msglen)
2052 bool err_msg_format = false;
2055 /* Validate message length. */
2057 case VIRTCHNL_OP_VERSION:
2058 valid_len = sizeof(struct virtchnl_version_info);
2060 case VIRTCHNL_OP_RESET_VF:
2062 case VIRTCHNL_OP_GET_VF_RESOURCES:
2064 valid_len = sizeof(u32);
2066 case VIRTCHNL_OP_CONFIG_TX_QUEUE:
2067 valid_len = sizeof(struct virtchnl_txq_info);
2069 case VIRTCHNL_OP_CONFIG_RX_QUEUE:
2070 valid_len = sizeof(struct virtchnl_rxq_info);
2072 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2073 valid_len = sizeof(struct virtchnl_vsi_queue_config_info);
2074 if (msglen >= valid_len) {
2075 struct virtchnl_vsi_queue_config_info *vqc =
2076 (struct virtchnl_vsi_queue_config_info *)msg;
2078 if (vqc->num_queue_pairs == 0 || vqc->num_queue_pairs >
2079 VIRTCHNL_OP_CONFIG_VSI_QUEUES_MAX) {
2080 err_msg_format = true;
2084 valid_len += (vqc->num_queue_pairs *
2086 virtchnl_queue_pair_info));
2089 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
2090 valid_len = sizeof(struct virtchnl_irq_map_info);
2091 if (msglen >= valid_len) {
2092 struct virtchnl_irq_map_info *vimi =
2093 (struct virtchnl_irq_map_info *)msg;
2095 if (vimi->num_vectors == 0 || vimi->num_vectors >
2096 VIRTCHNL_OP_CONFIG_IRQ_MAP_MAX) {
2097 err_msg_format = true;
2101 valid_len += (vimi->num_vectors *
2102 sizeof(struct virtchnl_vector_map));
2105 case VIRTCHNL_OP_ENABLE_QUEUES:
2106 case VIRTCHNL_OP_DISABLE_QUEUES:
2107 valid_len = sizeof(struct virtchnl_queue_select);
2109 case VIRTCHNL_OP_GET_MAX_RSS_QREGION:
2111 case VIRTCHNL_OP_ADD_ETH_ADDR:
2112 case VIRTCHNL_OP_DEL_ETH_ADDR:
2113 valid_len = sizeof(struct virtchnl_ether_addr_list);
2114 if (msglen >= valid_len) {
2115 struct virtchnl_ether_addr_list *veal =
2116 (struct virtchnl_ether_addr_list *)msg;
2118 if (veal->num_elements == 0 || veal->num_elements >
2119 VIRTCHNL_OP_ADD_DEL_ETH_ADDR_MAX) {
2120 err_msg_format = true;
2124 valid_len += veal->num_elements *
2125 sizeof(struct virtchnl_ether_addr);
2128 case VIRTCHNL_OP_ADD_VLAN:
2129 case VIRTCHNL_OP_DEL_VLAN:
2130 valid_len = sizeof(struct virtchnl_vlan_filter_list);
2131 if (msglen >= valid_len) {
2132 struct virtchnl_vlan_filter_list *vfl =
2133 (struct virtchnl_vlan_filter_list *)msg;
2135 if (vfl->num_elements == 0 || vfl->num_elements >
2136 VIRTCHNL_OP_ADD_DEL_VLAN_MAX) {
2137 err_msg_format = true;
2141 valid_len += vfl->num_elements * sizeof(u16);
2144 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2145 valid_len = sizeof(struct virtchnl_promisc_info);
2147 case VIRTCHNL_OP_GET_STATS:
2148 valid_len = sizeof(struct virtchnl_queue_select);
2150 case VIRTCHNL_OP_CONFIG_RSS_KEY:
2151 valid_len = sizeof(struct virtchnl_rss_key);
2152 if (msglen >= valid_len) {
2153 struct virtchnl_rss_key *vrk =
2154 (struct virtchnl_rss_key *)msg;
2156 if (vrk->key_len == 0) {
2157 /* zero length is allowed as input */
2161 valid_len += vrk->key_len - 1;
2164 case VIRTCHNL_OP_CONFIG_RSS_LUT:
2165 valid_len = sizeof(struct virtchnl_rss_lut);
2166 if (msglen >= valid_len) {
2167 struct virtchnl_rss_lut *vrl =
2168 (struct virtchnl_rss_lut *)msg;
2170 if (vrl->lut_entries == 0) {
2171 /* zero entries is allowed as input */
2175 valid_len += vrl->lut_entries - 1;
2178 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2180 case VIRTCHNL_OP_SET_RSS_HENA:
2181 valid_len = sizeof(struct virtchnl_rss_hena);
2183 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
2184 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
2186 case VIRTCHNL_OP_REQUEST_QUEUES:
2187 valid_len = sizeof(struct virtchnl_vf_res_request);
2189 case VIRTCHNL_OP_ENABLE_CHANNELS:
2190 valid_len = sizeof(struct virtchnl_tc_info);
2191 if (msglen >= valid_len) {
2192 struct virtchnl_tc_info *vti =
2193 (struct virtchnl_tc_info *)msg;
2195 if (vti->num_tc == 0 || vti->num_tc >
2196 VIRTCHNL_OP_ENABLE_CHANNELS_MAX) {
2197 err_msg_format = true;
2201 valid_len += (vti->num_tc - 1) *
2202 sizeof(struct virtchnl_channel_info);
2205 case VIRTCHNL_OP_DISABLE_CHANNELS:
2207 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
2208 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
2209 valid_len = sizeof(struct virtchnl_filter);
2211 case VIRTCHNL_OP_DCF_VLAN_OFFLOAD:
2212 valid_len = sizeof(struct virtchnl_dcf_vlan_offload);
2214 case VIRTCHNL_OP_DCF_CMD_DESC:
2215 case VIRTCHNL_OP_DCF_CMD_BUFF:
2216 /* These two opcodes are specific to handle the AdminQ command,
2217 * so the validation needs to be done in PF's context.
2221 case VIRTCHNL_OP_DCF_DISABLE:
2222 case VIRTCHNL_OP_DCF_GET_VSI_MAP:
2223 case VIRTCHNL_OP_DCF_GET_PKG_INFO:
2225 case VIRTCHNL_OP_DCF_CONFIG_BW:
2226 valid_len = sizeof(struct virtchnl_dcf_bw_cfg_list);
2227 if (msglen >= valid_len) {
2228 struct virtchnl_dcf_bw_cfg_list *cfg_list =
2229 (struct virtchnl_dcf_bw_cfg_list *)msg;
2230 if (cfg_list->num_elem == 0) {
2231 err_msg_format = true;
2234 valid_len += (cfg_list->num_elem - 1) *
2235 sizeof(struct virtchnl_dcf_bw_cfg);
2238 case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS:
2240 case VIRTCHNL_OP_ADD_RSS_CFG:
2241 case VIRTCHNL_OP_DEL_RSS_CFG:
2242 valid_len = sizeof(struct virtchnl_rss_cfg);
2244 case VIRTCHNL_OP_ADD_FDIR_FILTER:
2245 valid_len = sizeof(struct virtchnl_fdir_add);
2247 case VIRTCHNL_OP_DEL_FDIR_FILTER:
2248 valid_len = sizeof(struct virtchnl_fdir_del);
2250 case VIRTCHNL_OP_GET_QOS_CAPS:
2252 case VIRTCHNL_OP_CONFIG_QUEUE_TC_MAP:
2253 valid_len = sizeof(struct virtchnl_queue_tc_mapping);
2254 if (msglen >= valid_len) {
2255 struct virtchnl_queue_tc_mapping *q_tc =
2256 (struct virtchnl_queue_tc_mapping *)msg;
2257 if (q_tc->num_tc == 0) {
2258 err_msg_format = true;
2261 valid_len += (q_tc->num_tc - 1) *
2262 sizeof(q_tc->tc[0]);
2265 case VIRTCHNL_OP_CONFIG_QUEUE_BW:
2266 valid_len = sizeof(struct virtchnl_queues_bw_cfg);
2267 if (msglen >= valid_len) {
2268 struct virtchnl_queues_bw_cfg *q_bw =
2269 (struct virtchnl_queues_bw_cfg *)msg;
2270 if (q_bw->num_queues == 0) {
2271 err_msg_format = true;
2274 valid_len += (q_bw->num_queues - 1) *
2275 sizeof(q_bw->cfg[0]);
2278 case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
2280 case VIRTCHNL_OP_ADD_VLAN_V2:
2281 case VIRTCHNL_OP_DEL_VLAN_V2:
2282 valid_len = sizeof(struct virtchnl_vlan_filter_list_v2);
2283 if (msglen >= valid_len) {
2284 struct virtchnl_vlan_filter_list_v2 *vfl =
2285 (struct virtchnl_vlan_filter_list_v2 *)msg;
2287 if (vfl->num_elements == 0 || vfl->num_elements >
2288 VIRTCHNL_OP_ADD_DEL_VLAN_V2_MAX) {
2289 err_msg_format = true;
2293 valid_len += (vfl->num_elements - 1) *
2294 sizeof(struct virtchnl_vlan_filter);
2297 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
2298 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
2299 case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
2300 case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
2301 case VIRTCHNL_OP_ENABLE_VLAN_FILTERING_V2:
2302 case VIRTCHNL_OP_DISABLE_VLAN_FILTERING_V2:
2303 valid_len = sizeof(struct virtchnl_vlan_setting);
2305 case VIRTCHNL_OP_ENABLE_QUEUES_V2:
2306 case VIRTCHNL_OP_DISABLE_QUEUES_V2:
2307 valid_len = sizeof(struct virtchnl_del_ena_dis_queues);
2308 if (msglen >= valid_len) {
2309 struct virtchnl_del_ena_dis_queues *qs =
2310 (struct virtchnl_del_ena_dis_queues *)msg;
2311 if (qs->chunks.num_chunks == 0 ||
2312 qs->chunks.num_chunks > VIRTCHNL_OP_ENABLE_DISABLE_DEL_QUEUES_V2_MAX) {
2313 err_msg_format = true;
2316 valid_len += (qs->chunks.num_chunks - 1) *
2317 sizeof(struct virtchnl_queue_chunk);
2320 case VIRTCHNL_OP_MAP_QUEUE_VECTOR:
2321 valid_len = sizeof(struct virtchnl_queue_vector_maps);
2322 if (msglen >= valid_len) {
2323 struct virtchnl_queue_vector_maps *v_qp =
2324 (struct virtchnl_queue_vector_maps *)msg;
2325 if (v_qp->num_qv_maps == 0 ||
2326 v_qp->num_qv_maps > VIRTCHNL_OP_MAP_UNMAP_QUEUE_VECTOR_MAX) {
2327 err_msg_format = true;
2330 valid_len += (v_qp->num_qv_maps - 1) *
2331 sizeof(struct virtchnl_queue_vector);
2335 case VIRTCHNL_OP_INLINE_IPSEC_CRYPTO:
2337 struct inline_ipsec_msg *iim = (struct inline_ipsec_msg *)msg;
2339 virtchnl_inline_ipsec_val_msg_len(iim->ipsec_opcode);
2342 /* These are always errors coming from the VF. */
2343 case VIRTCHNL_OP_EVENT:
2344 case VIRTCHNL_OP_UNKNOWN:
2346 return VIRTCHNL_STATUS_ERR_PARAM;
2348 /* few more checks */
2349 if (err_msg_format || valid_len != msglen)
2350 return VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH;
2354 #endif /* _VIRTCHNL_H_ */