1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright (c) 2011, Microsoft Corporation.
7 * Haiyang Zhang <haiyangz@microsoft.com>
8 * Hank Janssen <hjanssen@microsoft.com>
9 * K. Y. Srinivasan <kys@microsoft.com>
15 #include <linux/list.h>
16 #include <linux/hyperv.h>
17 #include <linux/rndis.h>
20 #define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203 /* query only */
21 #define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204 /* query and set */
23 #define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
24 #define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
25 #define NDIS_OBJECT_TYPE_OFFLOAD 0xa7
27 #define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
28 #define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
30 struct ndis_obj_header {
36 /* ndis_recv_scale_cap/cap_flag */
37 #define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
38 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR 0x02000000
39 #define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC 0x04000000
40 #define NDIS_RSS_CAPS_USING_MSI_X 0x08000000
41 #define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS 0x10000000
42 #define NDIS_RSS_CAPS_SUPPORTS_MSI_X 0x20000000
43 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 0x00000100
44 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6 0x00000200
45 #define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX 0x00000400
47 struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
48 struct ndis_obj_header hdr;
52 u16 num_indirect_tabent;
56 /* ndis_recv_scale_param flags */
57 #define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED 0x0001
58 #define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED 0x0002
59 #define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED 0x0004
60 #define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED 0x0008
61 #define NDIS_RSS_PARAM_FLAG_DISABLE_RSS 0x0010
64 #define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
65 #define NDIS_HASH_IPV4 0x00000100
66 #define NDIS_HASH_TCP_IPV4 0x00000200
67 #define NDIS_HASH_IPV6 0x00000400
68 #define NDIS_HASH_IPV6_EX 0x00000800
69 #define NDIS_HASH_TCP_IPV6 0x00001000
70 #define NDIS_HASH_TCP_IPV6_EX 0x00002000
72 #define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
73 #define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2 40
77 struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
78 struct ndis_obj_header hdr;
80 /* Qualifies the rest of the information */
83 /* The base CPU number to do receive processing. not used */
86 /* This describes the hash function and type being enabled */
89 /* The size of indirection table array */
92 /* The offset of the indirection table from the beginning of this
95 u32 indirect_taboffset;
97 /* The size of the hash secret key */
100 /* The offset of the secret key from the beginning of this structure */
103 u32 processor_masks_offset;
104 u32 num_processor_masks;
105 u32 processor_masks_entry_size;
108 /* Fwd declaration */
109 struct ndis_tcp_ip_checksum_info;
110 struct ndis_pkt_8021q_info;
113 * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
116 * The size of this structure is less than 48 bytes and we can now
117 * place this structure in the skb->cb field.
119 struct hv_netvsc_packet {
120 /* Bookkeeping stuff */
121 u8 cp_partial; /* partial copy into send buffer */
123 u8 rmsg_size; /* RNDIS header and PPI size */
124 u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
132 u32 total_data_buflen;
135 #define NETVSC_HASH_KEYLEN 40
137 struct netvsc_device_info {
138 unsigned char mac_adr[ETH_ALEN];
142 u32 send_section_size;
143 u32 recv_section_size;
145 u8 rss_key[NETVSC_HASH_KEYLEN];
148 enum rndis_device_state {
149 RNDIS_DEV_UNINITIALIZED = 0,
150 RNDIS_DEV_INITIALIZING,
151 RNDIS_DEV_INITIALIZED,
152 RNDIS_DEV_DATAINITIALIZED,
155 struct rndis_device {
156 struct net_device *ndev;
158 enum rndis_device_state state;
162 spinlock_t request_lock;
163 struct list_head req_list;
165 struct work_struct mcast_work;
168 bool link_state; /* 0 - link up, 1 - link down */
170 u8 hw_mac_adr[ETH_ALEN];
171 u8 rss_key[NETVSC_HASH_KEYLEN];
172 u16 rx_table[ITAB_NUM];
177 struct rndis_message;
178 struct ndis_offload_params;
179 struct netvsc_device;
180 struct netvsc_channel;
181 struct net_device_context;
183 extern u32 netvsc_ring_bytes;
185 struct netvsc_device *netvsc_device_add(struct hv_device *device,
186 const struct netvsc_device_info *info);
187 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx);
188 void netvsc_device_remove(struct hv_device *device);
189 int netvsc_send(struct net_device *net,
190 struct hv_netvsc_packet *packet,
191 struct rndis_message *rndis_msg,
192 struct hv_page_buffer *page_buffer,
193 struct sk_buff *skb);
194 void netvsc_linkstatus_callback(struct net_device *net,
195 struct rndis_message *resp);
196 int netvsc_recv_callback(struct net_device *net,
197 struct netvsc_device *nvdev,
198 struct netvsc_channel *nvchan);
199 void netvsc_channel_cb(void *context);
200 int netvsc_poll(struct napi_struct *napi, int budget);
202 int rndis_set_subchannel(struct net_device *ndev,
203 struct netvsc_device *nvdev,
204 struct netvsc_device_info *dev_info);
205 int rndis_filter_open(struct netvsc_device *nvdev);
206 int rndis_filter_close(struct netvsc_device *nvdev);
207 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
208 struct netvsc_device_info *info);
209 void rndis_filter_update(struct netvsc_device *nvdev);
210 void rndis_filter_device_remove(struct hv_device *dev,
211 struct netvsc_device *nvdev);
212 int rndis_filter_set_rss_param(struct rndis_device *rdev,
214 int rndis_filter_set_offload_params(struct net_device *ndev,
215 struct netvsc_device *nvdev,
216 struct ndis_offload_params *req_offloads);
217 int rndis_filter_receive(struct net_device *ndev,
218 struct netvsc_device *net_dev,
219 struct netvsc_channel *nvchan,
220 void *data, u32 buflen);
222 int rndis_filter_set_device_mac(struct netvsc_device *ndev,
225 void netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
227 #define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
229 #define NVSP_PROTOCOL_VERSION_1 2
230 #define NVSP_PROTOCOL_VERSION_2 0x30002
231 #define NVSP_PROTOCOL_VERSION_4 0x40000
232 #define NVSP_PROTOCOL_VERSION_5 0x50000
233 #define NVSP_PROTOCOL_VERSION_6 0x60000
234 #define NVSP_PROTOCOL_VERSION_61 0x60001
237 NVSP_MSG_TYPE_NONE = 0,
240 NVSP_MSG_TYPE_INIT = 1,
241 NVSP_MSG_TYPE_INIT_COMPLETE = 2,
243 NVSP_VERSION_MSG_START = 100,
245 /* Version 1 Messages */
246 NVSP_MSG1_TYPE_SEND_NDIS_VER = NVSP_VERSION_MSG_START,
248 NVSP_MSG1_TYPE_SEND_RECV_BUF,
249 NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
250 NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
252 NVSP_MSG1_TYPE_SEND_SEND_BUF,
253 NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
254 NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
256 NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
257 NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
259 /* Version 2 messages */
260 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
261 NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
262 NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
264 NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
266 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
267 NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
269 NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
271 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
272 NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
274 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
275 NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
277 NVSP_MSG2_TYPE_ALLOC_RXBUF,
278 NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
280 NVSP_MSG2_TYPE_FREE_RXBUF,
282 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
283 NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
285 NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
287 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
288 NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
290 NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
292 /* Version 4 messages */
293 NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
294 NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
295 NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
297 NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
299 /* Version 5 messages */
300 NVSP_MSG5_TYPE_OID_QUERY_EX,
301 NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
302 NVSP_MSG5_TYPE_SUBCHANNEL,
303 NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
305 NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
307 /* Version 6 messages */
308 NVSP_MSG6_TYPE_PD_API,
309 NVSP_MSG6_TYPE_PD_POST_BATCH,
311 NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH
318 NVSP_STAT_PROTOCOL_TOO_NEW,
319 NVSP_STAT_PROTOCOL_TOO_OLD,
320 NVSP_STAT_INVALID_RNDIS_PKT,
322 NVSP_STAT_PROTOCOL_UNSUPPORTED,
326 struct nvsp_message_header {
333 * This message is used by the VSC to initialize the channel after the channels
334 * has been opened. This message should never include anything other then
335 * versioning (i.e. this message will be the same for ever).
337 struct nvsp_message_init {
338 u32 min_protocol_ver;
339 u32 max_protocol_ver;
343 * This message is used by the VSP to complete the initialization of the
344 * channel. This message should never include anything other then versioning
345 * (i.e. this message will be the same for ever).
347 struct nvsp_message_init_complete {
348 u32 negotiated_protocol_ver;
349 u32 max_mdl_chain_len;
353 union nvsp_message_init_uber {
354 struct nvsp_message_init init;
355 struct nvsp_message_init_complete init_complete;
358 /* Version 1 Messages */
361 * This message is used by the VSC to send the NDIS version to the VSP. The VSP
362 * can use this information when handling OIDs sent by the VSC.
364 struct nvsp_1_message_send_ndis_version {
370 * This message is used by the VSC to send a receive buffer to the VSP. The VSP
371 * can then use the receive buffer to send data to the VSC.
373 struct nvsp_1_message_send_receive_buffer {
378 struct nvsp_1_receive_buffer_section {
386 * This message is used by the VSP to acknowledge a receive buffer send by the
387 * VSC. This message must be sent by the VSP before the VSP uses the receive
390 struct nvsp_1_message_send_receive_buffer_complete {
395 * The receive buffer is split into two parts, a large suballocation
396 * section and a small suballocation section. These sections are then
397 * suballocated by a certain size.
401 * For example, the following break up of the receive buffer has 6
402 * large suballocations and 10 small suballocations.
406 * | Large Section | | Small Section |
407 * ------------------------------------------------------------
408 * | | | | | | | | | | | | | | | | | |
410 * LargeOffset SmallOffset
413 struct nvsp_1_receive_buffer_section sections[1];
417 * This message is sent by the VSC to revoke the receive buffer. After the VSP
418 * completes this transaction, the vsp should never use the receive buffer
421 struct nvsp_1_message_revoke_receive_buffer {
426 * This message is used by the VSC to send a send buffer to the VSP. The VSC
427 * can then use the send buffer to send data to the VSP.
429 struct nvsp_1_message_send_send_buffer {
435 * This message is used by the VSP to acknowledge a send buffer sent by the
436 * VSC. This message must be sent by the VSP before the VSP uses the sent
439 struct nvsp_1_message_send_send_buffer_complete {
443 * The VSC gets to choose the size of the send buffer and the VSP gets
444 * to choose the sections size of the buffer. This was done to enable
445 * dynamic reconfigurations when the cost of GPA-direct buffers
452 * This message is sent by the VSC to revoke the send buffer. After the VSP
453 * completes this transaction, the vsp should never use the send buffer again.
455 struct nvsp_1_message_revoke_send_buffer {
460 * This message is used by both the VSP and the VSC to send a RNDIS message to
461 * the opposite channel endpoint.
463 struct nvsp_1_message_send_rndis_packet {
465 * This field is specified by RNDIS. They assume there's two different
466 * channels of communication. However, the Network VSP only has one.
467 * Therefore, the channel travels with the RNDIS packet.
472 * This field is used to send part or all of the data through a send
473 * buffer. This values specifies an index into the send buffer. If the
474 * index is 0xFFFFFFFF, then the send buffer is not being used and all
475 * of the data was sent through other VMBus mechanisms.
477 u32 send_buf_section_index;
478 u32 send_buf_section_size;
482 * This message is used by both the VSP and the VSC to complete a RNDIS message
483 * to the opposite channel endpoint. At this point, the initiator of this
484 * message cannot use any resources associated with the original RNDIS packet.
486 struct nvsp_1_message_send_rndis_packet_complete {
490 union nvsp_1_message_uber {
491 struct nvsp_1_message_send_ndis_version send_ndis_ver;
493 struct nvsp_1_message_send_receive_buffer send_recv_buf;
494 struct nvsp_1_message_send_receive_buffer_complete
495 send_recv_buf_complete;
496 struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
498 struct nvsp_1_message_send_send_buffer send_send_buf;
499 struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
500 struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
502 struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
503 struct nvsp_1_message_send_rndis_packet_complete
504 send_rndis_pkt_complete;
509 * Network VSP protocol version 2 messages:
511 struct nvsp_2_vsc_capability {
519 u64 correlation_id:1;
527 struct nvsp_2_send_ndis_config {
530 struct nvsp_2_vsc_capability capability;
533 /* Allocate receive buffer */
534 struct nvsp_2_alloc_rxbuf {
535 /* Allocation ID to match the allocation request and response */
538 /* Length of the VM shared memory receive buffer that needs to
544 /* Allocate receive buffer complete */
545 struct nvsp_2_alloc_rxbuf_comp {
546 /* The NDIS_STATUS code for buffer allocation */
551 /* GPADL handle for the allocated receive buffer */
554 /* Receive buffer ID */
558 struct nvsp_2_free_rxbuf {
562 union nvsp_2_message_uber {
563 struct nvsp_2_send_ndis_config send_ndis_config;
564 struct nvsp_2_alloc_rxbuf alloc_rxbuf;
565 struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
566 struct nvsp_2_free_rxbuf free_rxbuf;
569 struct nvsp_4_send_vf_association {
570 /* 1: allocated, serial number is valid. 0: not allocated */
573 /* Serial number of the VF to team with */
577 enum nvsp_vm_datapath {
578 NVSP_DATAPATH_SYNTHETIC = 0,
583 struct nvsp_4_sw_datapath {
584 u32 active_datapath; /* active data path in VM */
587 union nvsp_4_message_uber {
588 struct nvsp_4_send_vf_association vf_assoc;
589 struct nvsp_4_sw_datapath active_dp;
592 enum nvsp_subchannel_operation {
593 NVSP_SUBCHANNEL_NONE = 0,
594 NVSP_SUBCHANNEL_ALLOCATE,
598 struct nvsp_5_subchannel_request {
603 struct nvsp_5_subchannel_complete {
605 u32 num_subchannels; /* Actual number of subchannels allocated */
608 struct nvsp_5_send_indirect_table {
609 /* The number of entries in the send indirection table */
612 /* The offset of the send indirection table from the beginning of
613 * struct nvsp_message.
614 * The send indirection table tells which channel to put the send
615 * traffic on. Each entry is a channel number.
620 union nvsp_5_message_uber {
621 struct nvsp_5_subchannel_request subchn_req;
622 struct nvsp_5_subchannel_complete subchn_comp;
623 struct nvsp_5_send_indirect_table send_table;
626 enum nvsp_6_pd_api_op {
627 PD_API_OP_CONFIG = 1,
628 PD_API_OP_SW_DATAPATH, /* Switch Datapath */
629 PD_API_OP_OPEN_PROVIDER,
630 PD_API_OP_CLOSE_PROVIDER,
631 PD_API_OP_CREATE_QUEUE,
632 PD_API_OP_FLUSH_QUEUE,
633 PD_API_OP_FREE_QUEUE,
634 PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */
635 PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */
639 struct grp_affinity {
645 struct nvsp_6_pd_api_req {
649 /* MMIO information is sent from the VM to VSP */
651 u64 mmio_pa; /* MMIO Physical Address */
654 /* Number of PD queues a VM can support */
658 /* Switch Datapath */
660 /* Host Datapath Is PacketDirect */
663 /* Guest PacketDirect Is Enabled */
669 u32 prov_id; /* Provider id */
686 struct grp_affinity affy;
701 /* Allocate Common Buffer */
704 u32 pf_node; /* Preferred Node */
708 /* Free Common Buffer */
711 u64 pa; /* Physical Address */
712 u32 pf_node; /* Preferred Node */
719 struct nvsp_6_pd_api_comp {
725 /* actual number of PD queues allocated to the VM */
728 /* Num Receive Rss PD Queues */
731 u8 is_supported; /* Is supported by VSP */
732 u8 is_enabled; /* Is enabled by VSP */
746 struct grp_affinity affy;
749 /* Allocate Common Buffer */
751 u64 pa; /* Physical Address */
753 u32 pf_node; /* Preferred Node */
760 struct nvsp_6_pd_buf {
767 struct nvsp_6_pd_batch_msg {
768 struct nvsp_message_header hdr;
773 struct nvsp_6_pd_buf pd_buf[0];
776 union nvsp_6_message_uber {
777 struct nvsp_6_pd_api_req pd_req;
778 struct nvsp_6_pd_api_comp pd_comp;
781 union nvsp_all_messages {
782 union nvsp_message_init_uber init_msg;
783 union nvsp_1_message_uber v1_msg;
784 union nvsp_2_message_uber v2_msg;
785 union nvsp_4_message_uber v4_msg;
786 union nvsp_5_message_uber v5_msg;
787 union nvsp_6_message_uber v6_msg;
791 struct nvsp_message {
792 struct nvsp_message_header hdr;
793 union nvsp_all_messages msg;
797 #define NETVSC_MTU 65535
798 #define NETVSC_MTU_MIN ETH_MIN_MTU
800 /* Max buffer sizes allowed by a host */
801 #define NETVSC_RECEIVE_BUFFER_SIZE (1024 * 1024 * 31) /* 31MB */
802 #define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024 * 1024 * 15) /* 15MB */
803 #define NETVSC_RECEIVE_BUFFER_DEFAULT (1024 * 1024 * 16)
805 #define NETVSC_SEND_BUFFER_SIZE (1024 * 1024 * 15) /* 15MB */
806 #define NETVSC_SEND_BUFFER_DEFAULT (1024 * 1024)
808 #define NETVSC_INVALID_INDEX -1
810 #define NETVSC_SEND_SECTION_SIZE 6144
811 #define NETVSC_RECV_SECTION_SIZE 1728
813 /* Default size of TX buf: 1MB, RX buf: 16MB */
814 #define NETVSC_MIN_TX_SECTIONS 10
815 #define NETVSC_DEFAULT_TX (NETVSC_SEND_BUFFER_DEFAULT \
816 / NETVSC_SEND_SECTION_SIZE)
817 #define NETVSC_MIN_RX_SECTIONS 10
818 #define NETVSC_DEFAULT_RX (NETVSC_RECEIVE_BUFFER_DEFAULT \
819 / NETVSC_RECV_SECTION_SIZE)
821 #define NETVSC_RECEIVE_BUFFER_ID 0xcafe
822 #define NETVSC_SEND_BUFFER_ID 0
824 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
825 NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
826 NETIF_F_TSO6 | NETIF_F_LRO | \
827 NETIF_F_SG | NETIF_F_RXHASH)
829 #define VRSS_SEND_TAB_SIZE 16 /* must be power of 2 */
830 #define VRSS_CHANNEL_MAX 64
831 #define VRSS_CHANNEL_DEFAULT 8
833 #define RNDIS_MAX_PKT_DEFAULT 8
834 #define RNDIS_PKT_ALIGN_DEFAULT 8
836 struct multi_send_data {
837 struct sk_buff *skb; /* skb containing the pkt */
838 struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
839 u32 count; /* counter of batched packets */
842 struct recv_comp_data {
843 u64 tid; /* transaction id */
847 struct multi_recv_comp {
848 struct recv_comp_data *slots;
849 u32 first; /* first data entry */
850 u32 next; /* next entry for writing */
853 #define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */
856 const struct ndis_pkt_8021q_info *vlan;
857 const struct ndis_tcp_ip_checksum_info *csum_info;
858 const u32 *hash_info;
859 u8 is_last; /* last RNDIS msg in a vmtransfer_page */
860 u32 cnt; /* #fragments in an RSC packet */
861 u32 pktlen; /* Full packet length */
862 void *data[NVSP_RSC_MAX];
863 u32 len[NVSP_RSC_MAX];
866 struct netvsc_stats {
871 struct u64_stats_sync syncp;
874 struct netvsc_ethtool_stats {
875 unsigned long tx_scattered;
876 unsigned long tx_no_memory;
877 unsigned long tx_no_space;
878 unsigned long tx_too_big;
879 unsigned long tx_busy;
880 unsigned long tx_send_full;
881 unsigned long rx_comp_busy;
882 unsigned long rx_no_memory;
883 unsigned long stop_queue;
884 unsigned long wake_queue;
887 struct netvsc_ethtool_pcpu_stats {
898 struct netvsc_vf_pcpu_stats {
903 struct u64_stats_sync syncp;
907 struct netvsc_reconfig {
908 struct list_head list;
912 /* L4 hash bits for different protocols */
913 #define HV_TCP4_L4HASH 1
914 #define HV_TCP6_L4HASH 2
915 #define HV_UDP4_L4HASH 4
916 #define HV_UDP6_L4HASH 8
917 #define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \
920 /* The context of the netvsc device */
921 struct net_device_context {
922 /* point back to our device context */
923 struct hv_device *device_ctx;
925 struct netvsc_device __rcu *nvdev;
926 /* list of netvsc net_devices */
927 struct list_head list;
928 /* reconfigure work */
929 struct delayed_work dwork;
930 /* last reconfig time */
931 unsigned long last_reconfig;
932 /* reconfig events */
933 struct list_head reconfig_events;
934 /* list protection */
937 u32 msg_enable; /* debug level */
939 u32 tx_checksum_mask;
941 u32 tx_table[VRSS_SEND_TAB_SIZE];
943 /* Ethtool settings */
946 u32 l4_hash; /* L4 hash settings */
947 struct netvsc_ethtool_stats eth_stats;
949 /* State to manage the associated VF interface. */
950 struct net_device __rcu *vf_netdev;
951 struct netvsc_vf_pcpu_stats __percpu *vf_stats;
952 struct delayed_work vf_takeover;
954 /* 1: allocated, serial number is valid. 0: not allocated */
956 /* Serial number of the VF to team with */
959 /* Used to temporarily save the config info across hibernation */
960 struct netvsc_device_info *saved_netvsc_dev_info;
963 /* Per channel data */
964 struct netvsc_channel {
965 struct vmbus_channel *channel;
966 struct netvsc_device *net_device;
967 const struct vmpacket_descriptor *desc;
968 struct napi_struct napi;
969 struct multi_send_data msd;
970 struct multi_recv_comp mrc;
971 atomic_t queue_sends;
974 struct netvsc_stats tx_stats;
975 struct netvsc_stats rx_stats;
978 /* Per netvsc device */
979 struct netvsc_device {
982 wait_queue_head_t wait_drain;
984 bool tx_disable; /* if true, do not wake up queue again */
986 /* Receive buffer allocated by us but manages by NetVSP */
988 u32 recv_buf_size; /* allocated bytes */
989 u32 recv_buf_gpadl_handle;
990 u32 recv_section_cnt;
991 u32 recv_section_size;
992 u32 recv_completion_cnt;
994 /* Send buffer allocated by us */
996 u32 send_buf_gpadl_handle;
997 u32 send_section_cnt;
998 u32 send_section_size;
999 unsigned long *send_section_map;
1001 /* Used for NetVSP initialization protocol */
1002 struct completion channel_init_wait;
1003 struct nvsp_message channel_init_pkt;
1005 struct nvsp_message revoke_packet;
1011 struct work_struct subchan_work;
1012 wait_queue_head_t subchan_open;
1014 struct rndis_device *extension;
1016 u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
1017 u32 pkt_align; /* alignment bytes, e.g. 8 */
1019 struct netvsc_channel chan_table[VRSS_CHANNEL_MAX];
1021 struct rcu_head rcu;
1024 /* NdisInitialize message */
1025 struct rndis_initialize_request {
1032 /* Response to NdisInitialize */
1033 struct rndis_initialize_complete {
1040 u32 max_pkt_per_msg;
1042 u32 pkt_alignment_factor;
1047 /* Call manager devices only: Information about an address family */
1048 /* supported by the device is appended to the response to NdisInitialize. */
1049 struct rndis_co_address_family {
1055 /* NdisHalt message */
1056 struct rndis_halt_request {
1060 /* NdisQueryRequest message */
1061 struct rndis_query_request {
1065 u32 info_buf_offset;
1069 /* Response to NdisQueryRequest */
1070 struct rndis_query_complete {
1074 u32 info_buf_offset;
1077 /* NdisSetRequest message */
1078 struct rndis_set_request {
1082 u32 info_buf_offset;
1086 /* Response to NdisSetRequest */
1087 struct rndis_set_complete {
1092 /* NdisReset message */
1093 struct rndis_reset_request {
1097 /* Response to NdisReset */
1098 struct rndis_reset_complete {
1100 u32 addressing_reset;
1103 /* NdisMIndicateStatus message */
1104 struct rndis_indicate_status {
1107 u32 status_buf_offset;
1110 /* Diagnostic information passed as the status buffer in */
1111 /* struct rndis_indicate_status messages signifying error conditions. */
1112 struct rndis_diagnostic_info {
1117 /* NdisKeepAlive message */
1118 struct rndis_keepalive_request {
1122 /* Response to NdisKeepAlive */
1123 struct rndis_keepalive_complete {
1129 * Data message. All Offset fields contain byte offsets from the beginning of
1130 * struct rndis_packet. All Length fields are in bytes. VcHandle is set
1131 * to 0 for connectionless data, otherwise it contains the VC handle.
1133 struct rndis_packet {
1136 u32 oob_data_offset;
1138 u32 num_oob_data_elements;
1139 u32 per_pkt_info_offset;
1140 u32 per_pkt_info_len;
1145 /* Optional Out of Band data associated with a Data message. */
1149 u32 class_info_offset;
1152 /* Packet extension field contents associated with a Data message. */
1153 struct rndis_per_packet_info {
1160 enum ndis_per_pkt_info_type {
1161 TCPIP_CHKSUM_PKTINFO,
1163 TCP_LARGESEND_PKTINFO,
1164 CLASSIFICATION_HANDLE_PKTINFO,
1170 NBL_HASH_VALUE = PACKET_CANCEL_ID,
1171 ORIGINAL_NET_BUFLIST,
1177 enum rndis_per_pkt_info_interal_type {
1178 RNDIS_PKTINFO_ID = 1,
1179 /* Add more members here */
1184 #define RNDIS_PKTINFO_SUBALLOC BIT(0)
1185 #define RNDIS_PKTINFO_1ST_FRAG BIT(1)
1186 #define RNDIS_PKTINFO_LAST_FRAG BIT(2)
1188 #define RNDIS_PKTINFO_ID_V1 1
1190 struct rndis_pktinfo_id {
1196 struct ndis_pkt_8021q_info {
1199 u32 pri:3; /* User Priority */
1200 u32 cfi:1; /* Canonical Format ID */
1201 u32 vlanid:12; /* VLAN ID */
1208 struct ndis_object_header {
1214 #define NDIS_OBJECT_TYPE_DEFAULT 0x80
1215 #define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
1216 #define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2
1217 #define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1
1219 #define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
1220 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
1221 #define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED 2
1222 #define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED 2
1223 #define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
1224 #define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
1225 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
1226 #define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
1227 #define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
1228 #define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
1230 #define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE 1
1231 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4 0
1232 #define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6 1
1234 #define VERSION_4_OFFLOAD_SIZE 22
1236 * New offload OIDs for NDIS 6
1238 #define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
1239 #define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C /* set only */
1240 #define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
1241 #define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
1242 #define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
1243 #define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
1246 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
1247 * ndis_type: NDIS_OBJTYPE_OFFLOAD
1250 #define NDIS_OFFLOAD_ENCAP_NONE 0x0000
1251 #define NDIS_OFFLOAD_ENCAP_NULL 0x0001
1252 #define NDIS_OFFLOAD_ENCAP_8023 0x0002
1253 #define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004
1254 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008
1255 #define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010
1257 struct ndis_csum_offload {
1260 #define NDIS_TXCSUM_CAP_IP4OPT 0x001
1261 #define NDIS_TXCSUM_CAP_TCP4OPT 0x004
1262 #define NDIS_TXCSUM_CAP_TCP4 0x010
1263 #define NDIS_TXCSUM_CAP_UDP4 0x040
1264 #define NDIS_TXCSUM_CAP_IP4 0x100
1266 #define NDIS_TXCSUM_ALL_TCP4 (NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT)
1270 #define NDIS_RXCSUM_CAP_IP4OPT 0x001
1271 #define NDIS_RXCSUM_CAP_TCP4OPT 0x004
1272 #define NDIS_RXCSUM_CAP_TCP4 0x010
1273 #define NDIS_RXCSUM_CAP_UDP4 0x040
1274 #define NDIS_RXCSUM_CAP_IP4 0x100
1277 #define NDIS_TXCSUM_CAP_IP6EXT 0x001
1278 #define NDIS_TXCSUM_CAP_TCP6OPT 0x004
1279 #define NDIS_TXCSUM_CAP_TCP6 0x010
1280 #define NDIS_TXCSUM_CAP_UDP6 0x040
1283 #define NDIS_RXCSUM_CAP_IP6EXT 0x001
1284 #define NDIS_RXCSUM_CAP_TCP6OPT 0x004
1285 #define NDIS_RXCSUM_CAP_TCP6 0x010
1286 #define NDIS_RXCSUM_CAP_UDP6 0x040
1288 #define NDIS_TXCSUM_ALL_TCP6 (NDIS_TXCSUM_CAP_TCP6 | \
1289 NDIS_TXCSUM_CAP_TCP6OPT | \
1290 NDIS_TXCSUM_CAP_IP6EXT)
1293 struct ndis_lsov1_offload {
1300 struct ndis_ipsecv1_offload {
1310 struct ndis_lsov2_offload {
1318 #define NDIS_LSOV2_CAP_IP6EXT 0x001
1319 #define NDIS_LSOV2_CAP_TCP6OPT 0x004
1321 #define NDIS_LSOV2_CAP_IP6 (NDIS_LSOV2_CAP_IP6EXT | \
1322 NDIS_LSOV2_CAP_TCP6OPT)
1325 struct ndis_ipsecv2_offload {
1344 struct ndis_rsc_offload {
1349 struct ndis_encap_offload {
1354 struct ndis_offload {
1355 struct ndis_object_header header;
1356 struct ndis_csum_offload csum;
1357 struct ndis_lsov1_offload lsov1;
1358 struct ndis_ipsecv1_offload ipsecv1;
1359 struct ndis_lsov2_offload lsov2;
1362 struct ndis_ipsecv2_offload ipsecv2;
1364 struct ndis_rsc_offload rsc;
1365 struct ndis_encap_offload encap_gre;
1368 #define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload)
1369 #define NDIS_OFFLOAD_SIZE_6_0 offsetof(struct ndis_offload, ipsecv2)
1370 #define NDIS_OFFLOAD_SIZE_6_1 offsetof(struct ndis_offload, rsc)
1372 struct ndis_offload_params {
1373 struct ndis_object_header header;
1383 u8 tcp_connection_ip_v4;
1384 u8 tcp_connection_ip_v6;
1393 u8 encapsulated_packet_task_offload;
1394 u8 encapsulation_types;
1398 struct ndis_tcp_ip_checksum_info {
1405 u32 ip_header_checksum:1;
1407 u32 tcp_header_offset:10;
1410 u32 tcp_checksum_failed:1;
1411 u32 udp_checksum_failed:1;
1412 u32 ip_checksum_failed:1;
1413 u32 tcp_checksum_succeeded:1;
1414 u32 udp_checksum_succeeded:1;
1415 u32 ip_checksum_succeeded:1;
1417 u32 tcp_checksum_value_invalid:1;
1418 u32 ip_checksum_value_invalid:1;
1424 struct ndis_tcp_lso_info {
1433 u32 tcp_header_offset:10;
1441 } lso_v1_transmit_complete;
1444 u32 tcp_header_offset:10;
1452 } lso_v2_transmit_complete;
1457 #define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1458 sizeof(struct ndis_pkt_8021q_info))
1460 #define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1461 sizeof(struct ndis_tcp_ip_checksum_info))
1463 #define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1464 sizeof(struct ndis_tcp_lso_info))
1466 #define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
1469 /* Total size of all PPI data */
1470 #define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
1471 NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
1473 /* Format of Information buffer passed in a SetRequest for the OID */
1474 /* OID_GEN_RNDIS_CONFIG_PARAMETER. */
1475 struct rndis_config_parameter_info {
1476 u32 parameter_name_offset;
1477 u32 parameter_name_length;
1479 u32 parameter_value_offset;
1480 u32 parameter_value_length;
1483 /* Values for ParameterType in struct rndis_config_parameter_info */
1484 #define RNDIS_CONFIG_PARAM_TYPE_INTEGER 0
1485 #define RNDIS_CONFIG_PARAM_TYPE_STRING 2
1487 /* CONDIS Miniport messages for connection oriented devices */
1488 /* that do not implement a call manager. */
1490 /* CoNdisMiniportCreateVc message */
1491 struct rcondis_mp_create_vc {
1496 /* Response to CoNdisMiniportCreateVc */
1497 struct rcondis_mp_create_vc_complete {
1503 /* CoNdisMiniportDeleteVc message */
1504 struct rcondis_mp_delete_vc {
1509 /* Response to CoNdisMiniportDeleteVc */
1510 struct rcondis_mp_delete_vc_complete {
1515 /* CoNdisMiniportQueryRequest message */
1516 struct rcondis_mp_query_request {
1522 u32 info_buf_offset;
1525 /* CoNdisMiniportSetRequest message */
1526 struct rcondis_mp_set_request {
1532 u32 info_buf_offset;
1535 /* CoNdisIndicateStatus message */
1536 struct rcondis_indicate_status {
1540 u32 status_buf_offset;
1543 /* CONDIS Call/VC parameters */
1544 struct rcondis_specific_parameters {
1546 u32 parameter_length;
1547 u32 parameter_lffset;
1550 struct rcondis_media_parameters {
1554 struct rcondis_specific_parameters media_specific;
1557 struct rndis_flowspec {
1559 u32 token_bucket_size;
1562 u32 delay_variation;
1565 u32 minimum_policed_size;
1568 struct rcondis_call_manager_parameters {
1569 struct rndis_flowspec transmit;
1570 struct rndis_flowspec receive;
1571 struct rcondis_specific_parameters call_mgr_specific;
1574 /* CoNdisMiniportActivateVc message */
1575 struct rcondis_mp_activate_vc_request {
1579 u32 media_params_offset;
1580 u32 media_params_length;
1581 u32 call_mgr_params_offset;
1582 u32 call_mgr_params_length;
1585 /* Response to CoNdisMiniportActivateVc */
1586 struct rcondis_mp_activate_vc_complete {
1591 /* CoNdisMiniportDeactivateVc message */
1592 struct rcondis_mp_deactivate_vc_request {
1598 /* Response to CoNdisMiniportDeactivateVc */
1599 struct rcondis_mp_deactivate_vc_complete {
1605 /* union with all of the RNDIS messages */
1606 union rndis_message_container {
1607 struct rndis_packet pkt;
1608 struct rndis_initialize_request init_req;
1609 struct rndis_halt_request halt_req;
1610 struct rndis_query_request query_req;
1611 struct rndis_set_request set_req;
1612 struct rndis_reset_request reset_req;
1613 struct rndis_keepalive_request keep_alive_req;
1614 struct rndis_indicate_status indicate_status;
1615 struct rndis_initialize_complete init_complete;
1616 struct rndis_query_complete query_complete;
1617 struct rndis_set_complete set_complete;
1618 struct rndis_reset_complete reset_complete;
1619 struct rndis_keepalive_complete keep_alive_complete;
1620 struct rcondis_mp_create_vc co_miniport_create_vc;
1621 struct rcondis_mp_delete_vc co_miniport_delete_vc;
1622 struct rcondis_indicate_status co_indicate_status;
1623 struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
1624 struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
1625 struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
1626 struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
1627 struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
1628 struct rcondis_mp_deactivate_vc_complete
1629 co_miniport_deactivate_vc_complete;
1632 /* Remote NDIS message format */
1633 struct rndis_message {
1636 /* Total length of this message, from the beginning */
1637 /* of the struct rndis_message, in bytes. */
1640 /* Actual message */
1641 union rndis_message_container msg;
1647 /* get the size of an RNDIS message. Pass in the message type, */
1648 /* struct rndis_set_request, struct rndis_packet for example */
1649 #define RNDIS_MESSAGE_SIZE(msg) \
1650 (sizeof(msg) + (sizeof(struct rndis_message) - \
1651 sizeof(union rndis_message_container)))
1653 #define RNDIS_HEADER_SIZE (sizeof(struct rndis_message) - \
1654 sizeof(union rndis_message_container))
1656 #define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
1658 #define NDIS_PACKET_TYPE_DIRECTED 0x00000001
1659 #define NDIS_PACKET_TYPE_MULTICAST 0x00000002
1660 #define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
1661 #define NDIS_PACKET_TYPE_BROADCAST 0x00000008
1662 #define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
1663 #define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
1664 #define NDIS_PACKET_TYPE_SMT 0x00000040
1665 #define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
1666 #define NDIS_PACKET_TYPE_GROUP 0x00000100
1667 #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00000200
1668 #define NDIS_PACKET_TYPE_FUNCTIONAL 0x00000400
1669 #define NDIS_PACKET_TYPE_MAC_FRAME 0x00000800
1671 #define TRANSPORT_INFO_NOT_IP 0
1672 #define TRANSPORT_INFO_IPV4_TCP 0x01
1673 #define TRANSPORT_INFO_IPV4_UDP 0x02
1674 #define TRANSPORT_INFO_IPV6_TCP 0x10
1675 #define TRANSPORT_INFO_IPV6_UDP 0x20
1677 #endif /* _HYPERV_NET_H */