1 /*******************************************************************************
3 Copyright (c) 2013 - 2015, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ***************************************************************************/
38 * This header file describes the VF-PF communication protocol used
39 * by the drivers for all devices starting from our 40G product line
41 * Admin queue buffer usage:
42 * desc->opcode is always aqc_opc_send_msg_to_pf
43 * flags, retval, datalen, and data addr are all used normally.
44 * The Firmware copies the cookie fields when sending messages between the
45 * PF and VF, but uses all other fields internally. Due to this limitation,
46 * we must send all messages as "indirect", i.e. using an external buffer.
48 * All the VSI indexes are relative to the VF. Each VF can have maximum of
49 * three VSIs. All the queue indexes are relative to the VSI. Each VF can
50 * have a maximum of sixteen queues for all of its VSIs.
52 * The PF is required to return a status code in v_retval for all messages
53 * except RESET_VF, which does not require any response. The return value
54 * is of status_code type, defined in the shared type.h.
56 * In general, VF driver initialization should roughly follow the order of
57 * these opcodes. The VF driver must first validate the API version of the
58 * PF driver, then request a reset, then get resources, then configure
59 * queues and interrupts. After these operations are complete, the VF
60 * driver may start its queues, optionally add MAC and VLAN filters, and
64 /* START GENERIC DEFINES
65 * Need to ensure the following enums and defines hold the same meaning and
66 * value in current and future projects
70 enum virtchnl_status_code {
71 VIRTCHNL_STATUS_SUCCESS = 0,
72 VIRTCHNL_ERR_PARAM = -5,
73 VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH = -38,
74 VIRTCHNL_STATUS_ERR_CQP_COMPL_ERROR = -39,
75 VIRTCHNL_STATUS_ERR_INVALID_VF_ID = -40,
76 VIRTCHNL_STATUS_NOT_SUPPORTED = -64,
79 #define VIRTCHNL_LINK_SPEED_100MB_SHIFT 0x1
80 #define VIRTCHNL_LINK_SPEED_1000MB_SHIFT 0x2
81 #define VIRTCHNL_LINK_SPEED_10GB_SHIFT 0x3
82 #define VIRTCHNL_LINK_SPEED_40GB_SHIFT 0x4
83 #define VIRTCHNL_LINK_SPEED_20GB_SHIFT 0x5
84 #define VIRTCHNL_LINK_SPEED_25GB_SHIFT 0x6
86 enum virtchnl_link_speed {
87 VIRTCHNL_LINK_SPEED_UNKNOWN = 0,
88 VIRTCHNL_LINK_SPEED_100MB = BIT(VIRTCHNL_LINK_SPEED_100MB_SHIFT),
89 VIRTCHNL_LINK_SPEED_1GB = BIT(VIRTCHNL_LINK_SPEED_1000MB_SHIFT),
90 VIRTCHNL_LINK_SPEED_10GB = BIT(VIRTCHNL_LINK_SPEED_10GB_SHIFT),
91 VIRTCHNL_LINK_SPEED_40GB = BIT(VIRTCHNL_LINK_SPEED_40GB_SHIFT),
92 VIRTCHNL_LINK_SPEED_20GB = BIT(VIRTCHNL_LINK_SPEED_20GB_SHIFT),
93 VIRTCHNL_LINK_SPEED_25GB = BIT(VIRTCHNL_LINK_SPEED_25GB_SHIFT),
96 /* for hsplit_0 field of Rx HMC context */
97 /* deprecated with IAVF 1.0 */
98 enum virtchnl_rx_hsplit {
99 VIRTCHNL_RX_HSPLIT_NO_SPLIT = 0,
100 VIRTCHNL_RX_HSPLIT_SPLIT_L2 = 1,
101 VIRTCHNL_RX_HSPLIT_SPLIT_IP = 2,
102 VIRTCHNL_RX_HSPLIT_SPLIT_TCP_UDP = 4,
103 VIRTCHNL_RX_HSPLIT_SPLIT_SCTP = 8,
106 #define VIRTCHNL_ETH_LENGTH_OF_ADDRESS 6
107 /* END GENERIC DEFINES */
109 /* Opcodes for VF-PF communication. These are placed in the v_opcode field
110 * of the virtchnl_msg structure.
113 /* The PF sends status change events to VFs using
114 * the VIRTCHNL_OP_EVENT opcode.
115 * VFs send requests to the PF using the other ops.
116 * Use of "advanced opcode" features must be negotiated as part of capabilities
117 * exchange and are not considered part of base mode feature set.
119 VIRTCHNL_OP_UNKNOWN = 0,
120 VIRTCHNL_OP_VERSION = 1, /* must ALWAYS be 1 */
121 VIRTCHNL_OP_RESET_VF = 2,
122 VIRTCHNL_OP_GET_VF_RESOURCES = 3,
123 VIRTCHNL_OP_CONFIG_TX_QUEUE = 4,
124 VIRTCHNL_OP_CONFIG_RX_QUEUE = 5,
125 VIRTCHNL_OP_CONFIG_VSI_QUEUES = 6,
126 VIRTCHNL_OP_CONFIG_IRQ_MAP = 7,
127 VIRTCHNL_OP_ENABLE_QUEUES = 8,
128 VIRTCHNL_OP_DISABLE_QUEUES = 9,
129 VIRTCHNL_OP_ADD_ETH_ADDR = 10,
130 VIRTCHNL_OP_DEL_ETH_ADDR = 11,
131 VIRTCHNL_OP_ADD_VLAN = 12,
132 VIRTCHNL_OP_DEL_VLAN = 13,
133 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE = 14,
134 VIRTCHNL_OP_GET_STATS = 15,
135 VIRTCHNL_OP_RSVD = 16,
136 VIRTCHNL_OP_EVENT = 17, /* must ALWAYS be 17 */
137 #ifdef VIRTCHNL_SOL_VF_SUPPORT
138 VIRTCHNL_OP_GET_ADDNL_SOL_CONFIG = 19,
140 #ifdef VIRTCHNL_IWARP
141 VIRTCHNL_OP_IWARP = 20, /* advanced opcode */
142 VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP = 21, /* advanced opcode */
143 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP = 22, /* advanced opcode */
145 VIRTCHNL_OP_CONFIG_RSS_KEY = 23,
146 VIRTCHNL_OP_CONFIG_RSS_LUT = 24,
147 VIRTCHNL_OP_GET_RSS_HENA_CAPS = 25,
148 VIRTCHNL_OP_SET_RSS_HENA = 26,
149 VIRTCHNL_OP_ENABLE_VLAN_STRIPPING = 27,
150 VIRTCHNL_OP_DISABLE_VLAN_STRIPPING = 28,
151 VIRTCHNL_OP_REQUEST_QUEUES = 29,
155 /* This macro is used to generate a compilation error if a structure
156 * is not exactly the correct length. It gives a divide by zero error if the
157 * structure is not of the correct size, otherwise it creates an enum that is
160 #define VIRTCHNL_CHECK_STRUCT_LEN(n, X) enum virtchnl_static_assert_enum_##X \
161 {virtchnl_static_assert_##X = (n) / ((sizeof(struct X) == (n)) ? 1 : 0)}
163 /* Virtual channel message descriptor. This overlays the admin queue
164 * descriptor. All other data is passed in external buffers.
167 struct virtchnl_msg {
168 u8 pad[8]; /* AQ flags/opcode/len/retval fields */
169 enum virtchnl_ops v_opcode; /* avoid confusion with desc->opcode */
170 enum virtchnl_status_code v_retval; /* ditto for desc->retval */
171 u32 vfid; /* used by PF when sending to VF */
174 VIRTCHNL_CHECK_STRUCT_LEN(20, virtchnl_msg);
176 /* Message descriptions and data structures.*/
178 /* VIRTCHNL_OP_VERSION
179 * VF posts its version number to the PF. PF responds with its version number
180 * in the same format, along with a return code.
181 * Reply from PF has its major/minor versions also in param0 and param1.
182 * If there is a major version mismatch, then the VF cannot operate.
183 * If there is a minor version mismatch, then the VF can operate but should
184 * add a warning to the system log.
186 * This enum element MUST always be specified as == 1, regardless of other
187 * changes in the API. The PF must always respond to this message without
188 * error regardless of version mismatch.
190 #define VIRTCHNL_VERSION_MAJOR 1
191 #define VIRTCHNL_VERSION_MINOR 1
192 #define VIRTCHNL_VERSION_MINOR_NO_VF_CAPS 0
194 struct virtchnl_version_info {
199 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_version_info);
201 #define VF_IS_V10(_v) (((_v)->major == 1) && ((_v)->minor == 0))
202 #define VF_IS_V11(_ver) (((_ver)->major == 1) && ((_ver)->minor == 1))
204 /* VIRTCHNL_OP_RESET_VF
205 * VF sends this request to PF with no parameters
206 * PF does NOT respond! VF driver must delay then poll VFGEN_RSTAT register
207 * until reset completion is indicated. The admin queue must be reinitialized
208 * after this operation.
210 * When reset is complete, PF must ensure that all queues in all VSIs associated
211 * with the VF are stopped, all queue configurations in the HMC are set to 0,
212 * and all MAC and VLAN filters (except the default MAC address) on all VSIs
216 /* VSI types that use VIRTCHNL interface for VF-PF communication. VSI_SRIOV
217 * vsi_type should always be 6 for backward compatibility. Add other fields
220 enum virtchnl_vsi_type {
221 VIRTCHNL_VSI_TYPE_INVALID = 0,
222 VIRTCHNL_VSI_SRIOV = 6,
225 /* VIRTCHNL_OP_GET_VF_RESOURCES
226 * Version 1.0 VF sends this request to PF with no parameters
227 * Version 1.1 VF sends this request to PF with u32 bitmap of its capabilities
228 * PF responds with an indirect message containing
229 * virtchnl_vf_resource and one or more
230 * virtchnl_vsi_resource structures.
233 struct virtchnl_vsi_resource {
236 enum virtchnl_vsi_type vsi_type;
238 u8 default_mac_addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
241 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
243 /* VF capability flags
244 * VIRTCHNL_VF_OFFLOAD_L2 flag is inclusive of base mode L2 offloads including
245 * TX/RX Checksum offloading and TSO for non-tunnelled packets.
247 #define VIRTCHNL_VF_OFFLOAD_L2 0x00000001
248 #define VIRTCHNL_VF_OFFLOAD_IWARP 0x00000002
249 #define VIRTCHNL_VF_OFFLOAD_RSVD 0x00000004
250 #define VIRTCHNL_VF_OFFLOAD_RSS_AQ 0x00000008
251 #define VIRTCHNL_VF_OFFLOAD_RSS_REG 0x00000010
252 #define VIRTCHNL_VF_OFFLOAD_WB_ON_ITR 0x00000020
253 #define VIRTCHNL_VF_OFFLOAD_REQ_QUEUES 0x00000040
254 #define VIRTCHNL_VF_OFFLOAD_VLAN 0x00010000
255 #define VIRTCHNL_VF_OFFLOAD_RX_POLLING 0x00020000
256 #define VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 0x00040000
257 #define VIRTCHNL_VF_OFFLOAD_RSS_PF 0X00080000
258 #define VIRTCHNL_VF_OFFLOAD_ENCAP 0X00100000
259 #define VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM 0X00200000
260 #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM 0X00400000
261 /* Define below the capability flags that are not offloads */
262 #define VIRTCHNL_VF_CAP_ADV_LINK_SPEED 0x00000080
264 #define VF_BASE_MODE_OFFLOADS (VIRTCHNL_VF_OFFLOAD_L2 | \
265 VIRTCHNL_VF_OFFLOAD_VLAN | \
266 VIRTCHNL_VF_OFFLOAD_RSS_PF)
268 struct virtchnl_vf_resource {
278 struct virtchnl_vsi_resource vsi_res[1];
281 VIRTCHNL_CHECK_STRUCT_LEN(36, virtchnl_vf_resource);
283 /* VIRTCHNL_OP_CONFIG_TX_QUEUE
284 * VF sends this message to set up parameters for one TX queue.
285 * External data buffer contains one instance of virtchnl_txq_info.
286 * PF configures requested queue and returns a status code.
289 /* Tx queue config info */
290 struct virtchnl_txq_info {
293 u16 ring_len; /* number of descriptors, multiple of 8 */
294 u16 headwb_enabled; /* deprecated with IAVF 1.0 */
296 u64 dma_headwb_addr; /* deprecated with IAVF 1.0 */
299 VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_txq_info);
301 /* VIRTCHNL_OP_CONFIG_RX_QUEUE
302 * VF sends this message to set up parameters for one RX queue.
303 * External data buffer contains one instance of virtchnl_rxq_info.
304 * PF configures requested queue and returns a status code.
307 /* Rx queue config info */
308 struct virtchnl_rxq_info {
311 u32 ring_len; /* number of descriptors, multiple of 32 */
313 u16 splithdr_enabled; /* deprecated with IAVF 1.0 */
318 enum virtchnl_rx_hsplit rx_split_pos; /* deprecated with IAVF 1.0 */
322 VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_rxq_info);
324 /* VIRTCHNL_OP_CONFIG_VSI_QUEUES
325 * VF sends this message to set parameters for all active TX and RX queues
326 * associated with the specified VSI.
327 * PF configures queues and returns status.
328 * If the number of queues specified is greater than the number of queues
329 * associated with the VSI, an error is returned and no queues are configured.
331 struct virtchnl_queue_pair_info {
332 /* NOTE: vsi_id and queue_id should be identical for both queues. */
333 struct virtchnl_txq_info txq;
334 struct virtchnl_rxq_info rxq;
337 VIRTCHNL_CHECK_STRUCT_LEN(64, virtchnl_queue_pair_info);
339 struct virtchnl_vsi_queue_config_info {
343 struct virtchnl_queue_pair_info qpair[1];
346 VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_vsi_queue_config_info);
348 /* VIRTCHNL_OP_REQUEST_QUEUES
349 * VF sends this message to request the PF to allocate additional queues to
350 * this VF. Each VF gets a guaranteed number of queues on init but asking for
351 * additional queues must be negotiated. This is a best effort request as it
352 * is possible the PF does not have enough queues left to support the request.
353 * If the PF cannot support the number requested it will respond with the
354 * maximum number it is able to support. If the request is successful, PF will
355 * then reset the VF to institute required changes.
358 /* VF resource request */
359 struct virtchnl_vf_res_request {
363 /* VIRTCHNL_OP_CONFIG_IRQ_MAP
364 * VF uses this message to map vectors to queues.
365 * The rxq_map and txq_map fields are bitmaps used to indicate which queues
366 * are to be associated with the specified vector.
367 * The "other" causes are always mapped to vector 0.
368 * PF configures interrupt mapping and returns status.
370 struct virtchnl_vector_map {
379 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_vector_map);
381 struct virtchnl_irq_map_info {
383 struct virtchnl_vector_map vecmap[1];
386 VIRTCHNL_CHECK_STRUCT_LEN(14, virtchnl_irq_map_info);
388 /* VIRTCHNL_OP_ENABLE_QUEUES
389 * VIRTCHNL_OP_DISABLE_QUEUES
390 * VF sends these message to enable or disable TX/RX queue pairs.
391 * The queues fields are bitmaps indicating which queues to act upon.
392 * (Currently, we only support 16 queues per VF, but we make the field
393 * u32 to allow for expansion.)
394 * PF performs requested action and returns status.
396 struct virtchnl_queue_select {
403 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_queue_select);
405 /* VIRTCHNL_OP_ADD_ETH_ADDR
406 * VF sends this message in order to add one or more unicast or multicast
407 * address filters for the specified VSI.
408 * PF adds the filters and returns status.
411 /* VIRTCHNL_OP_DEL_ETH_ADDR
412 * VF sends this message in order to remove one or more unicast or multicast
413 * filters for the specified VSI.
414 * PF removes the filters and returns status.
417 struct virtchnl_ether_addr {
418 u8 addr[VIRTCHNL_ETH_LENGTH_OF_ADDRESS];
422 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_ether_addr);
424 struct virtchnl_ether_addr_list {
427 struct virtchnl_ether_addr list[1];
430 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_ether_addr_list);
432 #ifdef VIRTCHNL_SOL_VF_SUPPORT
433 /* VIRTCHNL_OP_GET_ADDNL_SOL_CONFIG
434 * VF sends this message to get the default MTU and list of additional ethernet
435 * addresses it is allowed to use.
436 * PF responds with an indirect message containing
437 * virtchnl_addnl_solaris_config with zero or more
438 * virtchnl_ether_addr structures.
440 * It is expected that this operation will only ever be needed for Solaris VFs
441 * running under a Solaris PF.
443 struct virtchnl_addnl_solaris_config {
445 struct virtchnl_ether_addr_list al;
449 /* VIRTCHNL_OP_ADD_VLAN
450 * VF sends this message to add one or more VLAN tag filters for receives.
451 * PF adds the filters and returns status.
452 * If a port VLAN is configured by the PF, this operation will return an
456 /* VIRTCHNL_OP_DEL_VLAN
457 * VF sends this message to remove one or more VLAN tag filters for receives.
458 * PF removes the filters and returns status.
459 * If a port VLAN is configured by the PF, this operation will return an
463 struct virtchnl_vlan_filter_list {
469 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_vlan_filter_list);
471 /* VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE
472 * VF sends VSI id and flags.
473 * PF returns status code in retval.
474 * Note: we assume that broadcast accept mode is always enabled.
476 struct virtchnl_promisc_info {
481 VIRTCHNL_CHECK_STRUCT_LEN(4, virtchnl_promisc_info);
483 #define FLAG_VF_UNICAST_PROMISC 0x00000001
484 #define FLAG_VF_MULTICAST_PROMISC 0x00000002
486 /* VIRTCHNL_OP_GET_STATS
487 * VF sends this message to request stats for the selected VSI. VF uses
488 * the virtchnl_queue_select struct to specify the VSI. The queue_id
489 * field is ignored by the PF.
491 * PF replies with struct virtchnl_eth_stats in an external buffer.
494 struct virtchnl_eth_stats {
495 u64 rx_bytes; /* received bytes */
496 u64 rx_unicast; /* received unicast pkts */
497 u64 rx_multicast; /* received multicast pkts */
498 u64 rx_broadcast; /* received broadcast pkts */
500 u64 rx_unknown_protocol;
501 u64 tx_bytes; /* transmitted bytes*/
502 u64 tx_unicast; /* transmitted unicast pkts */
503 u64 tx_multicast; /* transmitted multicast pkts */
504 u64 tx_broadcast; /* transmitted broadcast pkts */
509 /* VIRTCHNL_OP_CONFIG_RSS_KEY
510 * VIRTCHNL_OP_CONFIG_RSS_LUT
511 * VF sends these messages to configure RSS. Only supported if both PF
512 * and VF drivers set the VIRTCHNL_VF_OFFLOAD_RSS_PF bit during
513 * configuration negotiation. If this is the case, then the RSS fields in
514 * the VF resource struct are valid.
515 * Both the key and LUT are initialized to 0 by the PF, meaning that
516 * RSS is effectively disabled until set up by the VF.
518 struct virtchnl_rss_key {
521 u8 key[1]; /* RSS hash key, packed bytes */
524 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_key);
526 struct virtchnl_rss_lut {
529 u8 lut[1]; /* RSS lookup table */
532 VIRTCHNL_CHECK_STRUCT_LEN(6, virtchnl_rss_lut);
534 /* VIRTCHNL_OP_GET_RSS_HENA_CAPS
535 * VIRTCHNL_OP_SET_RSS_HENA
536 * VF sends these messages to get and set the hash filter enable bits for RSS.
537 * By default, the PF sets these to all possible traffic types that the
538 * hardware supports. The VF can query this value if it wants to change the
539 * traffic types that are hashed by the hardware.
541 struct virtchnl_rss_hena {
545 VIRTCHNL_CHECK_STRUCT_LEN(8, virtchnl_rss_hena);
548 * PF sends this message to inform the VF driver of events that may affect it.
549 * No direct response is expected from the VF, though it may generate other
550 * messages in response to this one.
552 enum virtchnl_event_codes {
553 VIRTCHNL_EVENT_UNKNOWN = 0,
554 VIRTCHNL_EVENT_LINK_CHANGE,
555 VIRTCHNL_EVENT_RESET_IMPENDING,
556 VIRTCHNL_EVENT_PF_DRIVER_CLOSE,
559 #define PF_EVENT_SEVERITY_INFO 0
560 #define PF_EVENT_SEVERITY_ATTENTION 1
561 #define PF_EVENT_SEVERITY_ACTION_REQUIRED 2
562 #define PF_EVENT_SEVERITY_CERTAIN_DOOM 255
564 struct virtchnl_pf_event {
565 enum virtchnl_event_codes event;
567 /* If the PF driver does not support the new speed reporting
568 * capabilities then use link_event else use link_event_adv to
569 * get the speed and link information. The ability to understand
570 * new speeds is indicated by setting the capability flag
571 * VIRTCHNL_VF_CAP_ADV_LINK_SPEED in vf_cap_flags parameter
572 * in virtchnl_vf_resource struct and can be used to determine
573 * which link event struct to use below.
576 enum virtchnl_link_speed link_speed;
580 /* link_speed provided in Mbps */
589 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_pf_event);
591 #ifdef VIRTCHNL_IWARP
593 /* VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP
594 * VF uses this message to request PF to map IWARP vectors to IWARP queues.
595 * The request for this originates from the VF IWARP driver through
596 * a client interface between VF LAN and VF IWARP driver.
597 * A vector could have an AEQ and CEQ attached to it although
598 * there is a single AEQ per VF IWARP instance in which case
599 * most vectors will have an INVALID_IDX for aeq and valid idx for ceq.
600 * There will never be a case where there will be multiple CEQs attached
601 * to a single vector.
602 * PF configures interrupt mapping and returns status.
605 /* HW does not define a type value for AEQ; only for RX/TX and CEQ.
606 * In order for us to keep the interface simple, SW will define a
607 * unique type value for AEQ.
609 #define QUEUE_TYPE_PE_AEQ 0x80
610 #define QUEUE_INVALID_IDX 0xFFFF
612 struct virtchnl_iwarp_qv_info {
613 u32 v_idx; /* msix_vector */
619 VIRTCHNL_CHECK_STRUCT_LEN(12, virtchnl_iwarp_qv_info);
621 struct virtchnl_iwarp_qvlist_info {
623 struct virtchnl_iwarp_qv_info qv_info[1];
626 VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_iwarp_qvlist_info);
630 /* VF reset states - these are written into the RSTAT register:
631 * VFGEN_RSTAT on the VF
632 * When the PF initiates a reset, it writes 0
633 * When the reset is complete, it writes 1
634 * When the PF detects that the VF has recovered, it writes 2
635 * VF checks this register periodically to determine if a reset has occurred,
636 * then polls it to know when the reset is complete.
637 * If either the PF or VF reads the register while the hardware
638 * is in a reset state, it will return DEADBEEF, which, when masked
641 enum virtchnl_vfr_states {
642 VIRTCHNL_VFR_INPROGRESS = 0,
643 VIRTCHNL_VFR_COMPLETED,
644 VIRTCHNL_VFR_VFACTIVE,
648 * virtchnl_vc_validate_vf_msg
649 * @ver: Virtchnl version info
650 * @v_opcode: Opcode for the message
651 * @msg: pointer to the msg buffer
652 * @msglen: msg length
654 * validate msg format against struct for each opcode
657 virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,
660 bool err_msg_format = false;
663 /* Validate message length. */
665 case VIRTCHNL_OP_VERSION:
666 valid_len = sizeof(struct virtchnl_version_info);
668 case VIRTCHNL_OP_RESET_VF:
670 case VIRTCHNL_OP_GET_VF_RESOURCES:
672 valid_len = sizeof(u32);
674 case VIRTCHNL_OP_CONFIG_TX_QUEUE:
675 valid_len = sizeof(struct virtchnl_txq_info);
677 case VIRTCHNL_OP_CONFIG_RX_QUEUE:
678 valid_len = sizeof(struct virtchnl_rxq_info);
680 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
681 valid_len = sizeof(struct virtchnl_vsi_queue_config_info);
682 if (msglen >= valid_len) {
683 struct virtchnl_vsi_queue_config_info *vqc =
684 (struct virtchnl_vsi_queue_config_info *)msg;
685 valid_len += (vqc->num_queue_pairs *
687 virtchnl_queue_pair_info));
688 if (vqc->num_queue_pairs == 0)
689 err_msg_format = true;
692 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
693 valid_len = sizeof(struct virtchnl_irq_map_info);
694 if (msglen >= valid_len) {
695 struct virtchnl_irq_map_info *vimi =
696 (struct virtchnl_irq_map_info *)msg;
697 valid_len += (vimi->num_vectors *
698 sizeof(struct virtchnl_vector_map));
699 if (vimi->num_vectors == 0)
700 err_msg_format = true;
703 case VIRTCHNL_OP_ENABLE_QUEUES:
704 case VIRTCHNL_OP_DISABLE_QUEUES:
705 valid_len = sizeof(struct virtchnl_queue_select);
707 case VIRTCHNL_OP_ADD_ETH_ADDR:
708 case VIRTCHNL_OP_DEL_ETH_ADDR:
709 valid_len = sizeof(struct virtchnl_ether_addr_list);
710 if (msglen >= valid_len) {
711 struct virtchnl_ether_addr_list *veal =
712 (struct virtchnl_ether_addr_list *)msg;
713 valid_len += veal->num_elements *
714 sizeof(struct virtchnl_ether_addr);
715 if (veal->num_elements == 0)
716 err_msg_format = true;
719 case VIRTCHNL_OP_ADD_VLAN:
720 case VIRTCHNL_OP_DEL_VLAN:
721 valid_len = sizeof(struct virtchnl_vlan_filter_list);
722 if (msglen >= valid_len) {
723 struct virtchnl_vlan_filter_list *vfl =
724 (struct virtchnl_vlan_filter_list *)msg;
725 valid_len += vfl->num_elements * sizeof(u16);
726 if (vfl->num_elements == 0)
727 err_msg_format = true;
730 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
731 valid_len = sizeof(struct virtchnl_promisc_info);
733 case VIRTCHNL_OP_GET_STATS:
734 valid_len = sizeof(struct virtchnl_queue_select);
736 #ifdef VIRTCHNL_IWARP
737 case VIRTCHNL_OP_IWARP:
738 /* These messages are opaque to us and will be validated in
739 * the RDMA client code. We just need to check for nonzero
740 * length. The firmware will enforce max length restrictions.
745 err_msg_format = true;
747 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
749 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
750 valid_len = sizeof(struct virtchnl_iwarp_qvlist_info);
751 if (msglen >= valid_len) {
752 struct virtchnl_iwarp_qvlist_info *qv =
753 (struct virtchnl_iwarp_qvlist_info *)msg;
754 if (qv->num_vectors == 0) {
755 err_msg_format = true;
758 valid_len += ((qv->num_vectors - 1) *
759 sizeof(struct virtchnl_iwarp_qv_info));
763 case VIRTCHNL_OP_CONFIG_RSS_KEY:
764 valid_len = sizeof(struct virtchnl_rss_key);
765 if (msglen >= valid_len) {
766 struct virtchnl_rss_key *vrk =
767 (struct virtchnl_rss_key *)msg;
768 valid_len += vrk->key_len - 1;
771 case VIRTCHNL_OP_CONFIG_RSS_LUT:
772 valid_len = sizeof(struct virtchnl_rss_lut);
773 if (msglen >= valid_len) {
774 struct virtchnl_rss_lut *vrl =
775 (struct virtchnl_rss_lut *)msg;
776 valid_len += vrl->lut_entries - 1;
779 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
781 case VIRTCHNL_OP_SET_RSS_HENA:
782 valid_len = sizeof(struct virtchnl_rss_hena);
784 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
785 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
787 case VIRTCHNL_OP_REQUEST_QUEUES:
788 valid_len = sizeof(struct virtchnl_vf_res_request);
790 /* These are always errors coming from the VF. */
791 case VIRTCHNL_OP_EVENT:
792 case VIRTCHNL_OP_UNKNOWN:
794 return VIRTCHNL_ERR_PARAM;
796 /* few more checks */
797 if (err_msg_format || valid_len != msglen)
798 return VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH;
802 #endif /* _VIRTCHNL_H_ */