Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1803 insertions, 0 deletions

diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
new file mode 100644
index 000000000..dd5919ec4
--- /dev/null
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -0,0 +1,1803 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *
+ * Copyright (c) 2011, Microsoft Corporation.
+ *
+ * Authors:
+ *   Haiyang Zhang <haiyangz@microsoft.com>
+ *   Hank Janssen  <hjanssen@microsoft.com>
+ *   K. Y. Srinivasan <kys@microsoft.com>
+ */
+
+#ifndef _HYPERV_NET_H
+#define _HYPERV_NET_H
+
+#include <linux/list.h>
+#include <linux/hyperv.h>
+#include <linux/rndis.h>
+#include <linux/jhash.h>
+
+/* RSS related */
+#define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203  /* query only */
+#define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204  /* query and set */
+
+#define NDIS_OBJECT_TYPE_RSS_CAPABILITIES 0x88
+#define NDIS_OBJECT_TYPE_RSS_PARAMETERS 0x89
+#define NDIS_OBJECT_TYPE_OFFLOAD	0xa7
+
+#define NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2 2
+#define NDIS_RECEIVE_SCALE_PARAMETERS_REVISION_2 2
+
+struct ndis_obj_header {
+	u8 type;
+	u8 rev;
+	u16 size;
+} __packed;
+
+/* ndis_recv_scale_cap/cap_flag */
+#define NDIS_RSS_CAPS_MESSAGE_SIGNALED_INTERRUPTS 0x01000000
+#define NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR       0x02000000
+#define NDIS_RSS_CAPS_CLASSIFICATION_AT_DPC       0x04000000
+#define NDIS_RSS_CAPS_USING_MSI_X                 0x08000000
+#define NDIS_RSS_CAPS_RSS_AVAILABLE_ON_PORTS      0x10000000
+#define NDIS_RSS_CAPS_SUPPORTS_MSI_X              0x20000000
+#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4          0x00000100
+#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6          0x00000200
+#define NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV6_EX       0x00000400
+
+struct ndis_recv_scale_cap { /* NDIS_RECEIVE_SCALE_CAPABILITIES */
+	struct ndis_obj_header hdr;
+	u32 cap_flag;
+	u32 num_int_msg;
+	u32 num_recv_que;
+	u16 num_indirect_tabent;
+} __packed;
+
+
+/* ndis_recv_scale_param flags */
+#define NDIS_RSS_PARAM_FLAG_BASE_CPU_UNCHANGED     0x0001
+#define NDIS_RSS_PARAM_FLAG_HASH_INFO_UNCHANGED    0x0002
+#define NDIS_RSS_PARAM_FLAG_ITABLE_UNCHANGED       0x0004
+#define NDIS_RSS_PARAM_FLAG_HASH_KEY_UNCHANGED     0x0008
+#define NDIS_RSS_PARAM_FLAG_DISABLE_RSS            0x0010
+
+/* Hash info bits */
+#define NDIS_HASH_FUNC_TOEPLITZ 0x00000001
+#define NDIS_HASH_IPV4          0x00000100
+#define NDIS_HASH_TCP_IPV4      0x00000200
+#define NDIS_HASH_IPV6          0x00000400
+#define NDIS_HASH_IPV6_EX       0x00000800
+#define NDIS_HASH_TCP_IPV6      0x00001000
+#define NDIS_HASH_TCP_IPV6_EX   0x00002000
+
+#define NDIS_RSS_INDIRECTION_TABLE_MAX_SIZE_REVISION_2 (128 * 4)
+#define NDIS_RSS_HASH_SECRET_KEY_MAX_SIZE_REVISION_2   40
+
+#define ITAB_NUM 128
+
+struct ndis_recv_scale_param { /* NDIS_RECEIVE_SCALE_PARAMETERS */
+	struct ndis_obj_header hdr;
+
+	/* Qualifies the rest of the information */
+	u16 flag;
+
+	/* The base CPU number to do receive processing. not used */
+	u16 base_cpu_number;
+
+	/* This describes the hash function and type being enabled */
+	u32 hashinfo;
+
+	/* The size of indirection table array */
+	u16 indirect_tabsize;
+
+	/* The offset of the indirection table from the beginning of this
+	 * structure
+	 */
+	u32 indirect_taboffset;
+
+	/* The size of the hash secret key */
+	u16 hashkey_size;
+
+	/* The offset of the secret key from the beginning of this structure */
+	u32 hashkey_offset;
+
+	u32 processor_masks_offset;
+	u32 num_processor_masks;
+	u32 processor_masks_entry_size;
+};
+
+struct ndis_tcp_ip_checksum_info {
+	union {
+		struct {
+			u32 is_ipv4:1;
+			u32 is_ipv6:1;
+			u32 tcp_checksum:1;
+			u32 udp_checksum:1;
+			u32 ip_header_checksum:1;
+			u32 reserved:11;
+			u32 tcp_header_offset:10;
+		} transmit;
+		struct {
+			u32 tcp_checksum_failed:1;
+			u32 udp_checksum_failed:1;
+			u32 ip_checksum_failed:1;
+			u32 tcp_checksum_succeeded:1;
+			u32 udp_checksum_succeeded:1;
+			u32 ip_checksum_succeeded:1;
+			u32 loopback:1;
+			u32 tcp_checksum_value_invalid:1;
+			u32 ip_checksum_value_invalid:1;
+		} receive;
+		u32  value;
+	};
+};
+
+struct ndis_pkt_8021q_info {
+	union {
+		struct {
+			u32 pri:3; /* User Priority */
+			u32 cfi:1; /* Canonical Format ID */
+			u32 vlanid:12; /* VLAN ID */
+			u32 reserved:16;
+		};
+		u32 value;
+	};
+};
+
+/*
+ * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
+ * within the RNDIS
+ *
+ * The size of this structure is less than 48 bytes and we can now
+ * place this structure in the skb->cb field.
+ */
+struct hv_netvsc_packet {
+	/* Bookkeeping stuff */
+	u8 cp_partial; /* partial copy into send buffer */
+
+	u8 rmsg_size; /* RNDIS header and PPI size */
+	u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */
+	u8 page_buf_cnt;
+
+	u16 q_idx;
+	u16 total_packets;
+
+	u32 total_bytes;
+	u32 send_buf_index;
+	u32 total_data_buflen;
+	struct hv_dma_range *dma_range;
+};
+
+#define NETVSC_HASH_KEYLEN 40
+
+struct netvsc_device_info {
+	unsigned char mac_adr[ETH_ALEN];
+	u32  num_chn;
+	u32  send_sections;
+	u32  recv_sections;
+	u32  send_section_size;
+	u32  recv_section_size;
+
+	struct bpf_prog *bprog;
+
+	u8 rss_key[NETVSC_HASH_KEYLEN];
+};
+
+enum rndis_device_state {
+	RNDIS_DEV_UNINITIALIZED = 0,
+	RNDIS_DEV_INITIALIZING,
+	RNDIS_DEV_INITIALIZED,
+	RNDIS_DEV_DATAINITIALIZED,
+};
+
+struct rndis_device {
+	struct net_device *ndev;
+
+	enum rndis_device_state state;
+
+	atomic_t new_req_id;
+
+	spinlock_t request_lock;
+	struct list_head req_list;
+
+	struct work_struct mcast_work;
+	u32 filter;
+
+	bool link_state;        /* 0 - link up, 1 - link down */
+
+	u8 hw_mac_adr[ETH_ALEN];
+	u8 rss_key[NETVSC_HASH_KEYLEN];
+};
+
+
+/* Interface */
+struct rndis_message;
+struct ndis_offload_params;
+struct netvsc_device;
+struct netvsc_channel;
+struct net_device_context;
+
+extern u32 netvsc_ring_bytes;
+
+struct netvsc_device *netvsc_device_add(struct hv_device *device,
+					const struct netvsc_device_info *info);
+int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx);
+void netvsc_device_remove(struct hv_device *device);
+int netvsc_send(struct net_device *net,
+		struct hv_netvsc_packet *packet,
+		struct rndis_message *rndis_msg,
+		struct hv_page_buffer *page_buffer,
+		struct sk_buff *skb,
+		bool xdp_tx);
+void netvsc_linkstatus_callback(struct net_device *net,
+				struct rndis_message *resp,
+				void *data, u32 data_buflen);
+int netvsc_recv_callback(struct net_device *net,
+			 struct netvsc_device *nvdev,
+			 struct netvsc_channel *nvchan);
+void netvsc_channel_cb(void *context);
+int netvsc_poll(struct napi_struct *napi, int budget);
+
+void netvsc_xdp_xmit(struct sk_buff *skb, struct net_device *ndev);
+u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan,
+		   struct xdp_buff *xdp);
+unsigned int netvsc_xdp_fraglen(unsigned int len);
+struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev);
+int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog,
+		   struct netlink_ext_ack *extack,
+		   struct netvsc_device *nvdev);
+int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog);
+int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf);
+int netvsc_ndoxdp_xmit(struct net_device *ndev, int n,
+		       struct xdp_frame **frames, u32 flags);
+
+int rndis_set_subchannel(struct net_device *ndev,
+			 struct netvsc_device *nvdev,
+			 struct netvsc_device_info *dev_info);
+int rndis_filter_open(struct netvsc_device *nvdev);
+int rndis_filter_close(struct netvsc_device *nvdev);
+struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
+					      struct netvsc_device_info *info);
+void rndis_filter_update(struct netvsc_device *nvdev);
+void rndis_filter_device_remove(struct hv_device *dev,
+				struct netvsc_device *nvdev);
+int rndis_filter_set_rss_param(struct rndis_device *rdev,
+			       const u8 *key);
+int rndis_filter_set_offload_params(struct net_device *ndev,
+				    struct netvsc_device *nvdev,
+				    struct ndis_offload_params *req_offloads);
+int rndis_filter_receive(struct net_device *ndev,
+			 struct netvsc_device *net_dev,
+			 struct netvsc_channel *nvchan,
+			 void *data, u32 buflen);
+
+int rndis_filter_set_device_mac(struct netvsc_device *ndev,
+				const char *mac);
+
+int netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
+
+#define NVSP_INVALID_PROTOCOL_VERSION	((u32)0xFFFFFFFF)
+
+#define NVSP_PROTOCOL_VERSION_1		2
+#define NVSP_PROTOCOL_VERSION_2		0x30002
+#define NVSP_PROTOCOL_VERSION_4		0x40000
+#define NVSP_PROTOCOL_VERSION_5		0x50000
+#define NVSP_PROTOCOL_VERSION_6		0x60000
+#define NVSP_PROTOCOL_VERSION_61	0x60001
+
+enum {
+	NVSP_MSG_TYPE_NONE = 0,
+
+	/* Init Messages */
+	NVSP_MSG_TYPE_INIT			= 1,
+	NVSP_MSG_TYPE_INIT_COMPLETE		= 2,
+
+	NVSP_VERSION_MSG_START			= 100,
+
+	/* Version 1 Messages */
+	NVSP_MSG1_TYPE_SEND_NDIS_VER		= NVSP_VERSION_MSG_START,
+
+	NVSP_MSG1_TYPE_SEND_RECV_BUF,
+	NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE,
+	NVSP_MSG1_TYPE_REVOKE_RECV_BUF,
+
+	NVSP_MSG1_TYPE_SEND_SEND_BUF,
+	NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE,
+	NVSP_MSG1_TYPE_REVOKE_SEND_BUF,
+
+	NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
+	NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
+
+	/* Version 2 messages */
+	NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
+	NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
+	NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
+
+	NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
+
+	NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
+	NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
+
+	NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
+
+	NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
+	NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
+
+	NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
+	NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
+
+	NVSP_MSG2_TYPE_ALLOC_RXBUF,
+	NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
+
+	NVSP_MSG2_TYPE_FREE_RXBUF,
+
+	NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
+	NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
+
+	NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
+
+	NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
+	NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
+
+	NVSP_MSG2_MAX = NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
+
+	/* Version 4 messages */
+	NVSP_MSG4_TYPE_SEND_VF_ASSOCIATION,
+	NVSP_MSG4_TYPE_SWITCH_DATA_PATH,
+	NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
+
+	NVSP_MSG4_MAX = NVSP_MSG4_TYPE_UPLINK_CONNECT_STATE_DEPRECATED,
+
+	/* Version 5 messages */
+	NVSP_MSG5_TYPE_OID_QUERY_EX,
+	NVSP_MSG5_TYPE_OID_QUERY_EX_COMP,
+	NVSP_MSG5_TYPE_SUBCHANNEL,
+	NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
+
+	NVSP_MSG5_MAX = NVSP_MSG5_TYPE_SEND_INDIRECTION_TABLE,
+
+	/* Version 6 messages */
+	NVSP_MSG6_TYPE_PD_API,
+	NVSP_MSG6_TYPE_PD_POST_BATCH,
+
+	NVSP_MSG6_MAX = NVSP_MSG6_TYPE_PD_POST_BATCH
+};
+
+enum {
+	NVSP_STAT_NONE = 0,
+	NVSP_STAT_SUCCESS,
+	NVSP_STAT_FAIL,
+	NVSP_STAT_PROTOCOL_TOO_NEW,
+	NVSP_STAT_PROTOCOL_TOO_OLD,
+	NVSP_STAT_INVALID_RNDIS_PKT,
+	NVSP_STAT_BUSY,
+	NVSP_STAT_PROTOCOL_UNSUPPORTED,
+	NVSP_STAT_MAX,
+};
+
+struct nvsp_message_header {
+	u32 msg_type;
+};
+
+/* Init Messages */
+
+/*
+ * This message is used by the VSC to initialize the channel after the channels
+ * has been opened. This message should never include anything other then
+ * versioning (i.e. this message will be the same for ever).
+ */
+struct nvsp_message_init {
+	u32 min_protocol_ver;
+	u32 max_protocol_ver;
+} __packed;
+
+/*
+ * This message is used by the VSP to complete the initialization of the
+ * channel. This message should never include anything other then versioning
+ * (i.e. this message will be the same for ever).
+ */
+struct nvsp_message_init_complete {
+	u32 negotiated_protocol_ver;
+	u32 max_mdl_chain_len;
+	u32 status;
+} __packed;
+
+union nvsp_message_init_uber {
+	struct nvsp_message_init init;
+	struct nvsp_message_init_complete init_complete;
+} __packed;
+
+/* Version 1 Messages */
+
+/*
+ * This message is used by the VSC to send the NDIS version to the VSP. The VSP
+ * can use this information when handling OIDs sent by the VSC.
+ */
+struct nvsp_1_message_send_ndis_version {
+	u32 ndis_major_ver;
+	u32 ndis_minor_ver;
+} __packed;
+
+/*
+ * This message is used by the VSC to send a receive buffer to the VSP. The VSP
+ * can then use the receive buffer to send data to the VSC.
+ */
+struct nvsp_1_message_send_receive_buffer {
+	u32 gpadl_handle;
+	u16 id;
+} __packed;
+
+struct nvsp_1_receive_buffer_section {
+	u32 offset;
+	u32 sub_alloc_size;
+	u32 num_sub_allocs;
+	u32 end_offset;
+} __packed;
+
+/*
+ * This message is used by the VSP to acknowledge a receive buffer send by the
+ * VSC. This message must be sent by the VSP before the VSP uses the receive
+ * buffer.
+ */
+struct nvsp_1_message_send_receive_buffer_complete {
+	u32 status;
+	u32 num_sections;
+
+	/*
+	 * The receive buffer is split into two parts, a large suballocation
+	 * section and a small suballocation section. These sections are then
+	 * suballocated by a certain size.
+	 */
+
+	/*
+	 * For example, the following break up of the receive buffer has 6
+	 * large suballocations and 10 small suballocations.
+	 */
+
+	/*
+	 * |            Large Section          |  |   Small Section   |
+	 * ------------------------------------------------------------
+	 * |     |     |     |     |     |     |  | | | | | | | | | | |
+	 * |                                      |
+	 *  LargeOffset                            SmallOffset
+	 */
+
+	struct nvsp_1_receive_buffer_section sections[1];
+} __packed;
+
+/*
+ * This message is sent by the VSC to revoke the receive buffer.  After the VSP
+ * completes this transaction, the vsp should never use the receive buffer
+ * again.
+ */
+struct nvsp_1_message_revoke_receive_buffer {
+	u16 id;
+};
+
+/*
+ * This message is used by the VSC to send a send buffer to the VSP. The VSC
+ * can then use the send buffer to send data to the VSP.
+ */
+struct nvsp_1_message_send_send_buffer {
+	u32 gpadl_handle;
+	u16 id;
+} __packed;
+
+/*
+ * This message is used by the VSP to acknowledge a send buffer sent by the
+ * VSC. This message must be sent by the VSP before the VSP uses the sent
+ * buffer.
+ */
+struct nvsp_1_message_send_send_buffer_complete {
+	u32 status;
+
+	/*
+	 * The VSC gets to choose the size of the send buffer and the VSP gets
+	 * to choose the sections size of the buffer.  This was done to enable
+	 * dynamic reconfigurations when the cost of GPA-direct buffers
+	 * decreases.
+	 */
+	u32 section_size;
+} __packed;
+
+/*
+ * This message is sent by the VSC to revoke the send buffer.  After the VSP
+ * completes this transaction, the vsp should never use the send buffer again.
+ */
+struct nvsp_1_message_revoke_send_buffer {
+	u16 id;
+};
+
+/*
+ * This message is used by both the VSP and the VSC to send a RNDIS message to
+ * the opposite channel endpoint.
+ */
+struct nvsp_1_message_send_rndis_packet {
+	/*
+	 * This field is specified by RNDIS. They assume there's two different
+	 * channels of communication. However, the Network VSP only has one.
+	 * Therefore, the channel travels with the RNDIS packet.
+	 */
+	u32 channel_type;
+
+	/*
+	 * This field is used to send part or all of the data through a send
+	 * buffer. This values specifies an index into the send buffer. If the
+	 * index is 0xFFFFFFFF, then the send buffer is not being used and all
+	 * of the data was sent through other VMBus mechanisms.
+	 */
+	u32 send_buf_section_index;
+	u32 send_buf_section_size;
+} __packed;
+
+/*
+ * This message is used by both the VSP and the VSC to complete a RNDIS message
+ * to the opposite channel endpoint. At this point, the initiator of this
+ * message cannot use any resources associated with the original RNDIS packet.
+ */
+struct nvsp_1_message_send_rndis_packet_complete {
+	u32 status;
+};
+
+union nvsp_1_message_uber {
+	struct nvsp_1_message_send_ndis_version send_ndis_ver;
+
+	struct nvsp_1_message_send_receive_buffer send_recv_buf;
+	struct nvsp_1_message_send_receive_buffer_complete
+						send_recv_buf_complete;
+	struct nvsp_1_message_revoke_receive_buffer revoke_recv_buf;
+
+	struct nvsp_1_message_send_send_buffer send_send_buf;
+	struct nvsp_1_message_send_send_buffer_complete send_send_buf_complete;
+	struct nvsp_1_message_revoke_send_buffer revoke_send_buf;
+
+	struct nvsp_1_message_send_rndis_packet send_rndis_pkt;
+	struct nvsp_1_message_send_rndis_packet_complete
+						send_rndis_pkt_complete;
+} __packed;
+
+
+/*
+ * Network VSP protocol version 2 messages:
+ */
+struct nvsp_2_vsc_capability {
+	union {
+		u64 data;
+		struct {
+			u64 vmq:1;
+			u64 chimney:1;
+			u64 sriov:1;
+			u64 ieee8021q:1;
+			u64 correlation_id:1;
+			u64 teaming:1;
+			u64 vsubnetid:1;
+			u64 rsc:1;
+		};
+	};
+} __packed;
+
+struct nvsp_2_send_ndis_config {
+	u32 mtu;
+	u32 reserved;
+	struct nvsp_2_vsc_capability capability;
+} __packed;
+
+/* Allocate receive buffer */
+struct nvsp_2_alloc_rxbuf {
+	/* Allocation ID to match the allocation request and response */
+	u32 alloc_id;
+
+	/* Length of the VM shared memory receive buffer that needs to
+	 * be allocated
+	 */
+	u32 len;
+} __packed;
+
+/* Allocate receive buffer complete */
+struct nvsp_2_alloc_rxbuf_comp {
+	/* The NDIS_STATUS code for buffer allocation */
+	u32 status;
+
+	u32 alloc_id;
+
+	/* GPADL handle for the allocated receive buffer */
+	u32 gpadl_handle;
+
+	/* Receive buffer ID */
+	u64 recv_buf_id;
+} __packed;
+
+struct nvsp_2_free_rxbuf {
+	u64 recv_buf_id;
+} __packed;
+
+union nvsp_2_message_uber {
+	struct nvsp_2_send_ndis_config send_ndis_config;
+	struct nvsp_2_alloc_rxbuf alloc_rxbuf;
+	struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
+	struct nvsp_2_free_rxbuf free_rxbuf;
+} __packed;
+
+struct nvsp_4_send_vf_association {
+	/* 1: allocated, serial number is valid. 0: not allocated */
+	u32 allocated;
+
+	/* Serial number of the VF to team with */
+	u32 serial;
+} __packed;
+
+enum nvsp_vm_datapath {
+	NVSP_DATAPATH_SYNTHETIC = 0,
+	NVSP_DATAPATH_VF,
+	NVSP_DATAPATH_MAX
+};
+
+struct nvsp_4_sw_datapath {
+	u32 active_datapath; /* active data path in VM */
+} __packed;
+
+union nvsp_4_message_uber {
+	struct nvsp_4_send_vf_association vf_assoc;
+	struct nvsp_4_sw_datapath active_dp;
+} __packed;
+
+enum nvsp_subchannel_operation {
+	NVSP_SUBCHANNEL_NONE = 0,
+	NVSP_SUBCHANNEL_ALLOCATE,
+	NVSP_SUBCHANNEL_MAX
+};
+
+struct nvsp_5_subchannel_request {
+	u32 op;
+	u32 num_subchannels;
+} __packed;
+
+struct nvsp_5_subchannel_complete {
+	u32 status;
+	u32 num_subchannels; /* Actual number of subchannels allocated */
+} __packed;
+
+struct nvsp_5_send_indirect_table {
+	/* The number of entries in the send indirection table */
+	u32 count;
+
+	/* The offset of the send indirection table from the beginning of
+	 * struct nvsp_message.
+	 * The send indirection table tells which channel to put the send
+	 * traffic on. Each entry is a channel number.
+	 */
+	u32 offset;
+} __packed;
+
+union nvsp_5_message_uber {
+	struct nvsp_5_subchannel_request subchn_req;
+	struct nvsp_5_subchannel_complete subchn_comp;
+	struct nvsp_5_send_indirect_table send_table;
+} __packed;
+
+enum nvsp_6_pd_api_op {
+	PD_API_OP_CONFIG = 1,
+	PD_API_OP_SW_DATAPATH, /* Switch Datapath */
+	PD_API_OP_OPEN_PROVIDER,
+	PD_API_OP_CLOSE_PROVIDER,
+	PD_API_OP_CREATE_QUEUE,
+	PD_API_OP_FLUSH_QUEUE,
+	PD_API_OP_FREE_QUEUE,
+	PD_API_OP_ALLOC_COM_BUF, /* Allocate Common Buffer */
+	PD_API_OP_FREE_COM_BUF, /* Free Common Buffer */
+	PD_API_OP_MAX
+};
+
+struct grp_affinity {
+	u64 mask;
+	u16 grp;
+	u16 reserved[3];
+} __packed;
+
+struct nvsp_6_pd_api_req {
+	u32 op;
+
+	union {
+		/* MMIO information is sent from the VM to VSP */
+		struct __packed {
+			u64 mmio_pa; /* MMIO Physical Address */
+			u32 mmio_len;
+
+			/* Number of PD queues a VM can support */
+			u16 num_subchn;
+		} config;
+
+		/* Switch Datapath */
+		struct __packed {
+			/* Host Datapath Is PacketDirect */
+			u8 host_dpath_is_pd;
+
+			/* Guest PacketDirect Is Enabled */
+			u8 guest_pd_enabled;
+		} sw_dpath;
+
+		/* Open Provider*/
+		struct __packed {
+			u32 prov_id; /* Provider id */
+			u32 flag;
+		} open_prov;
+
+		/* Close Provider */
+		struct __packed {
+			u32 prov_id;
+		} cls_prov;
+
+		/* Create Queue*/
+		struct __packed {
+			u32 prov_id;
+			u16 q_id;
+			u16 q_size;
+			u8 is_recv_q;
+			u8 is_rss_q;
+			u32 recv_data_len;
+			struct grp_affinity affy;
+		} cr_q;
+
+		/* Delete Queue*/
+		struct __packed {
+			u32 prov_id;
+			u16 q_id;
+		} del_q;
+
+		/* Flush Queue */
+		struct __packed {
+			u32 prov_id;
+			u16 q_id;
+		} flush_q;
+
+		/* Allocate Common Buffer */
+		struct __packed {
+			u32 len;
+			u32 pf_node; /* Preferred Node */
+			u16 region_id;
+		} alloc_com_buf;
+
+		/* Free Common Buffer */
+		struct __packed {
+			u32 len;
+			u64 pa; /* Physical Address */
+			u32 pf_node; /* Preferred Node */
+			u16 region_id;
+			u8 cache_type;
+		} free_com_buf;
+	} __packed;
+} __packed;
+
+struct nvsp_6_pd_api_comp {
+	u32 op;
+	u32 status;
+
+	union {
+		struct __packed {
+			/* actual number of PD queues allocated to the VM */
+			u16 num_pd_q;
+
+			/* Num Receive Rss PD Queues */
+			u8 num_rss_q;
+
+			u8 is_supported; /* Is supported by VSP */
+			u8 is_enabled; /* Is enabled by VSP */
+		} config;
+
+		/* Open Provider */
+		struct __packed {
+			u32 prov_id;
+		} open_prov;
+
+		/* Create Queue */
+		struct __packed {
+			u32 prov_id;
+			u16 q_id;
+			u16 q_size;
+			u32 recv_data_len;
+			struct grp_affinity affy;
+		} cr_q;
+
+		/* Allocate Common Buffer */
+		struct __packed {
+			u64 pa; /* Physical Address */
+			u32 len;
+			u32 pf_node; /* Preferred Node */
+			u16 region_id;
+			u8 cache_type;
+		} alloc_com_buf;
+	} __packed;
+} __packed;
+
+struct nvsp_6_pd_buf {
+	u32 region_offset;
+	u16 region_id;
+	u16 is_partial:1;
+	u16 reserved:15;
+} __packed;
+
+struct nvsp_6_pd_batch_msg {
+	struct nvsp_message_header hdr;
+	u16 count;
+	u16 guest2host:1;
+	u16 is_recv:1;
+	u16 reserved:14;
+	struct nvsp_6_pd_buf pd_buf[0];
+} __packed;
+
+union nvsp_6_message_uber {
+	struct nvsp_6_pd_api_req pd_req;
+	struct nvsp_6_pd_api_comp pd_comp;
+} __packed;
+
+union nvsp_all_messages {
+	union nvsp_message_init_uber init_msg;
+	union nvsp_1_message_uber v1_msg;
+	union nvsp_2_message_uber v2_msg;
+	union nvsp_4_message_uber v4_msg;
+	union nvsp_5_message_uber v5_msg;
+	union nvsp_6_message_uber v6_msg;
+} __packed;
+
+/* ALL Messages */
+struct nvsp_message {
+	struct nvsp_message_header hdr;
+	union nvsp_all_messages msg;
+} __packed;
+
+
+#define NETVSC_MTU 65535
+#define NETVSC_MTU_MIN ETH_MIN_MTU
+
+/* Max buffer sizes allowed by a host */
+#define NETVSC_RECEIVE_BUFFER_SIZE		(1024 * 1024 * 31) /* 31MB */
+#define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY	(1024 * 1024 * 15) /* 15MB */
+#define NETVSC_RECEIVE_BUFFER_DEFAULT		(1024 * 1024 * 16)
+
+#define NETVSC_SEND_BUFFER_SIZE			(1024 * 1024 * 15)  /* 15MB */
+#define NETVSC_SEND_BUFFER_DEFAULT		(1024 * 1024)
+
+#define NETVSC_INVALID_INDEX			-1
+
+#define NETVSC_SEND_SECTION_SIZE		6144
+#define NETVSC_RECV_SECTION_SIZE		1728
+
+/* Default size of TX buf: 1MB, RX buf: 16MB */
+#define NETVSC_MIN_TX_SECTIONS	10
+#define NETVSC_DEFAULT_TX	(NETVSC_SEND_BUFFER_DEFAULT \
+				 / NETVSC_SEND_SECTION_SIZE)
+#define NETVSC_MIN_RX_SECTIONS	10
+#define NETVSC_DEFAULT_RX	(NETVSC_RECEIVE_BUFFER_DEFAULT \
+				 / NETVSC_RECV_SECTION_SIZE)
+
+#define NETVSC_RECEIVE_BUFFER_ID		0xcafe
+#define NETVSC_SEND_BUFFER_ID			0
+
+#define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
+				      NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
+				      NETIF_F_TSO6 | NETIF_F_LRO | \
+				      NETIF_F_SG | NETIF_F_RXHASH)
+
+#define VRSS_SEND_TAB_SIZE 16  /* must be power of 2 */
+#define VRSS_CHANNEL_MAX 64
+#define VRSS_CHANNEL_DEFAULT 8
+
+#define RNDIS_MAX_PKT_DEFAULT 8
+#define RNDIS_PKT_ALIGN_DEFAULT 8
+
+#define NETVSC_XDP_HDRM 256
+
+#define NETVSC_MIN_OUT_MSG_SIZE (sizeof(struct vmpacket_descriptor) + \
+				 sizeof(struct nvsp_message))
+#define NETVSC_MIN_IN_MSG_SIZE sizeof(struct vmpacket_descriptor)
+
+/* Estimated requestor size:
+ * out_ring_size/min_out_msg_size + in_ring_size/min_in_msg_size
+ */
+static inline u32 netvsc_rqstor_size(unsigned long ringbytes)
+{
+	return ringbytes / NETVSC_MIN_OUT_MSG_SIZE +
+		ringbytes / NETVSC_MIN_IN_MSG_SIZE;
+}
+
+/* XFER PAGE packets can specify a maximum of 375 ranges for NDIS >= 6.0
+ * and a maximum of 64 ranges for NDIS < 6.0 with no RSC; with RSC, this
+ * limit is raised to 562 (= NVSP_RSC_MAX).
+ */
+#define NETVSC_MAX_XFER_PAGE_RANGES NVSP_RSC_MAX
+#define NETVSC_XFER_HEADER_SIZE(rng_cnt) \
+		(offsetof(struct vmtransfer_page_packet_header, ranges) + \
+		(rng_cnt) * sizeof(struct vmtransfer_page_range))
+#define NETVSC_MAX_PKT_SIZE (NETVSC_XFER_HEADER_SIZE(NETVSC_MAX_XFER_PAGE_RANGES) + \
+		sizeof(struct nvsp_message) + (sizeof(u32) * VRSS_SEND_TAB_SIZE))
+
+struct multi_send_data {
+	struct sk_buff *skb; /* skb containing the pkt */
+	struct hv_netvsc_packet *pkt; /* netvsc pkt pending */
+	u32 count; /* counter of batched packets */
+};
+
+struct recv_comp_data {
+	u64 tid; /* transaction id */
+	u32 status;
+};
+
+struct multi_recv_comp {
+	struct recv_comp_data *slots;
+	u32 first;	/* first data entry */
+	u32 next;	/* next entry for writing */
+};
+
+#define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */
+
+struct nvsc_rsc {
+	struct ndis_pkt_8021q_info vlan;
+	struct ndis_tcp_ip_checksum_info csum_info;
+	u32 hash_info;
+	u8 ppi_flags; /* valid/present bits for the above PPIs */
+	u8 is_last; /* last RNDIS msg in a vmtransfer_page */
+	u32 cnt; /* #fragments in an RSC packet */
+	u32 pktlen; /* Full packet length */
+	void *data[NVSP_RSC_MAX];
+	u32 len[NVSP_RSC_MAX];
+};
+
+#define NVSC_RSC_VLAN		BIT(0)	/* valid/present bit for 'vlan' */
+#define NVSC_RSC_CSUM_INFO	BIT(1)	/* valid/present bit for 'csum_info' */
+#define NVSC_RSC_HASH_INFO	BIT(2)	/* valid/present bit for 'hash_info' */
+
+struct netvsc_stats_tx {
+	u64 packets;
+	u64 bytes;
+	u64 xdp_xmit;
+	struct u64_stats_sync syncp;
+};
+
+struct netvsc_stats_rx {
+	u64 packets;
+	u64 bytes;
+	u64 broadcast;
+	u64 multicast;
+	u64 xdp_drop;
+	u64 xdp_redirect;
+	u64 xdp_tx;
+	struct u64_stats_sync syncp;
+};
+
+struct netvsc_ethtool_stats {
+	unsigned long tx_scattered;
+	unsigned long tx_no_memory;
+	unsigned long tx_no_space;
+	unsigned long tx_too_big;
+	unsigned long tx_busy;
+	unsigned long tx_send_full;
+	unsigned long rx_comp_busy;
+	unsigned long rx_no_memory;
+	unsigned long stop_queue;
+	unsigned long wake_queue;
+	unsigned long vlan_error;
+};
+
+struct netvsc_ethtool_pcpu_stats {
+	u64     rx_packets;
+	u64     rx_bytes;
+	u64     tx_packets;
+	u64     tx_bytes;
+	u64     vf_rx_packets;
+	u64     vf_rx_bytes;
+	u64     vf_tx_packets;
+	u64     vf_tx_bytes;
+};
+
+struct netvsc_vf_pcpu_stats {
+	u64     rx_packets;
+	u64     rx_bytes;
+	u64     tx_packets;
+	u64     tx_bytes;
+	struct u64_stats_sync   syncp;
+	u32	tx_dropped;
+};
+
+struct netvsc_reconfig {
+	struct list_head list;
+	u32 event;
+};
+
+/* L4 hash bits for different protocols */
+#define HV_TCP4_L4HASH 1
+#define HV_TCP6_L4HASH 2
+#define HV_UDP4_L4HASH 4
+#define HV_UDP6_L4HASH 8
+#define HV_DEFAULT_L4HASH (HV_TCP4_L4HASH | HV_TCP6_L4HASH | HV_UDP4_L4HASH | \
+			   HV_UDP6_L4HASH)
+
+/* The context of the netvsc device  */
+struct net_device_context {
+	/* point back to our device context */
+	struct hv_device *device_ctx;
+	/* netvsc_device */
+	struct netvsc_device __rcu *nvdev;
+	/* list of netvsc net_devices */
+	struct list_head list;
+	/* reconfigure work */
+	struct delayed_work dwork;
+	/* last reconfig time */
+	unsigned long last_reconfig;
+	/* reconfig events */
+	struct list_head reconfig_events;
+	/* list protection */
+	spinlock_t lock;
+
+	u32 msg_enable; /* debug level */
+
+	u32 tx_checksum_mask;
+
+	u32 tx_table[VRSS_SEND_TAB_SIZE];
+
+	u16 rx_table[ITAB_NUM];
+
+	/* Ethtool settings */
+	u8 duplex;
+	u32 speed;
+	u32 l4_hash; /* L4 hash settings */
+	struct netvsc_ethtool_stats eth_stats;
+
+	/* State to manage the associated VF interface. */
+	struct net_device __rcu *vf_netdev;
+	struct netvsc_vf_pcpu_stats __percpu *vf_stats;
+	struct delayed_work vf_takeover;
+
+	/* 1: allocated, serial number is valid. 0: not allocated */
+	u32 vf_alloc;
+	/* Serial number of the VF to team with */
+	u32 vf_serial;
+	/* completion variable to confirm vf association */
+	struct completion vf_add;
+	/* Is the current data path through the VF NIC? */
+	bool  data_path_is_vf;
+
+	/* Used to temporarily save the config info across hibernation */
+	struct netvsc_device_info *saved_netvsc_dev_info;
+};
+
+/* Azure hosts don't support non-TCP port numbers in hashing for fragmented
+ * packets. We can use ethtool to change UDP hash level when necessary.
+ */
+static inline u32 netvsc_get_hash(struct sk_buff *skb,
+				  const struct net_device_context *ndc)
+{
+	struct flow_keys flow;
+	u32 hash, pkt_proto = 0;
+	static u32 hashrnd __read_mostly;
+
+	net_get_random_once(&hashrnd, sizeof(hashrnd));
+
+	if (!skb_flow_dissect_flow_keys(skb, &flow, 0))
+		return 0;
+
+	switch (flow.basic.ip_proto) {
+	case IPPROTO_TCP:
+		if (flow.basic.n_proto == htons(ETH_P_IP))
+			pkt_proto = HV_TCP4_L4HASH;
+		else if (flow.basic.n_proto == htons(ETH_P_IPV6))
+			pkt_proto = HV_TCP6_L4HASH;
+
+		break;
+
+	case IPPROTO_UDP:
+		if (flow.basic.n_proto == htons(ETH_P_IP))
+			pkt_proto = HV_UDP4_L4HASH;
+		else if (flow.basic.n_proto == htons(ETH_P_IPV6))
+			pkt_proto = HV_UDP6_L4HASH;
+
+		break;
+	}
+
+	if (pkt_proto & ndc->l4_hash) {
+		return skb_get_hash(skb);
+	} else {
+		if (flow.basic.n_proto == htons(ETH_P_IP))
+			hash = jhash2((u32 *)&flow.addrs.v4addrs, 2, hashrnd);
+		else if (flow.basic.n_proto == htons(ETH_P_IPV6))
+			hash = jhash2((u32 *)&flow.addrs.v6addrs, 8, hashrnd);
+		else
+			return 0;
+
+		__skb_set_sw_hash(skb, hash, false);
+	}
+
+	return hash;
+}
+
+/* Per channel data */
+struct netvsc_channel {
+	struct vmbus_channel *channel;
+	struct netvsc_device *net_device;
+	void *recv_buf; /* buffer to copy packets out from the receive buffer */
+	const struct vmpacket_descriptor *desc;
+	struct napi_struct napi;
+	struct multi_send_data msd;
+	struct multi_recv_comp mrc;
+	atomic_t queue_sends;
+	struct nvsc_rsc rsc;
+
+	struct bpf_prog __rcu *bpf_prog;
+	struct xdp_rxq_info xdp_rxq;
+	bool xdp_flush;
+
+	struct netvsc_stats_tx tx_stats;
+	struct netvsc_stats_rx rx_stats;
+};
+
+/* Per netvsc device */
+struct netvsc_device {
+	u32 nvsp_version;
+
+	wait_queue_head_t wait_drain;
+	bool destroy;
+	bool tx_disable; /* if true, do not wake up queue again */
+
+	/* Receive buffer allocated by us but manages by NetVSP */
+	void *recv_buf;
+	void *recv_original_buf;
+	u32 recv_buf_size; /* allocated bytes */
+	struct vmbus_gpadl recv_buf_gpadl_handle;
+	u32 recv_section_cnt;
+	u32 recv_section_size;
+	u32 recv_completion_cnt;
+
+	/* Send buffer allocated by us */
+	void *send_buf;
+	void *send_original_buf;
+	u32 send_buf_size;
+	struct vmbus_gpadl send_buf_gpadl_handle;
+	u32 send_section_cnt;
+	u32 send_section_size;
+	unsigned long *send_section_map;
+
+	/* Used for NetVSP initialization protocol */
+	struct completion channel_init_wait;
+	struct nvsp_message channel_init_pkt;
+
+	struct nvsp_message revoke_packet;
+
+	u32 max_chn;
+	u32 num_chn;
+
+	atomic_t open_chn;
+	struct work_struct subchan_work;
+	wait_queue_head_t subchan_open;
+
+	struct rndis_device *extension;
+
+	u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
+	u32 pkt_align; /* alignment bytes, e.g. 8 */
+
+	struct netvsc_channel chan_table[VRSS_CHANNEL_MAX];
+
+	struct rcu_head rcu;
+};
+
+/* NdisInitialize message */
+struct rndis_initialize_request {
+	u32 req_id;
+	u32 major_ver;
+	u32 minor_ver;
+	u32 max_xfer_size;
+};
+
+/* Response to NdisInitialize */
+struct rndis_initialize_complete {
+	u32 req_id;
+	u32 status;
+	u32 major_ver;
+	u32 minor_ver;
+	u32 dev_flags;
+	u32 medium;
+	u32 max_pkt_per_msg;
+	u32 max_xfer_size;
+	u32 pkt_alignment_factor;
+	u32 af_list_offset;
+	u32 af_list_size;
+};
+
+/* Call manager devices only: Information about an address family */
+/* supported by the device is appended to the response to NdisInitialize. */
+struct rndis_co_address_family {
+	u32 address_family;
+	u32 major_ver;
+	u32 minor_ver;
+};
+
+/* NdisHalt message */
+struct rndis_halt_request {
+	u32 req_id;
+};
+
+/* NdisQueryRequest message */
+struct rndis_query_request {
+	u32 req_id;
+	u32 oid;
+	u32 info_buflen;
+	u32 info_buf_offset;
+	u32 dev_vc_handle;
+};
+
+/* Response to NdisQueryRequest */
+struct rndis_query_complete {
+	u32 req_id;
+	u32 status;
+	u32 info_buflen;
+	u32 info_buf_offset;
+};
+
+/* NdisSetRequest message */
+struct rndis_set_request {
+	u32 req_id;
+	u32 oid;
+	u32 info_buflen;
+	u32 info_buf_offset;
+	u32 dev_vc_handle;
+	u8  info_buf[];
+};
+
+/* Response to NdisSetRequest */
+struct rndis_set_complete {
+	u32 req_id;
+	u32 status;
+};
+
+/* NdisReset message */
+struct rndis_reset_request {
+	u32 reserved;
+};
+
+/* Response to NdisReset */
+struct rndis_reset_complete {
+	u32 status;
+	u32 addressing_reset;
+};
+
+/* NdisMIndicateStatus message */
+struct rndis_indicate_status {
+	u32 status;
+	u32 status_buflen;
+	u32 status_buf_offset;
+};
+
+/* Diagnostic information passed as the status buffer in */
+/* struct rndis_indicate_status messages signifying error conditions. */
+struct rndis_diagnostic_info {
+	u32 diag_status;
+	u32 error_offset;
+};
+
+/* NdisKeepAlive message */
+struct rndis_keepalive_request {
+	u32 req_id;
+};
+
+/* Response to NdisKeepAlive */
+struct rndis_keepalive_complete {
+	u32 req_id;
+	u32 status;
+};
+
+/*
+ * Data message. All Offset fields contain byte offsets from the beginning of
+ * struct rndis_packet. All Length fields are in bytes.  VcHandle is set
+ * to 0 for connectionless data, otherwise it contains the VC handle.
+ */
+struct rndis_packet {
+	u32 data_offset;
+	u32 data_len;
+	u32 oob_data_offset;
+	u32 oob_data_len;
+	u32 num_oob_data_elements;
+	u32 per_pkt_info_offset;
+	u32 per_pkt_info_len;
+	u32 vc_handle;
+	u32 reserved;
+};
+
+/* Optional Out of Band data associated with a Data message. */
+struct rndis_oobd {
+	u32 size;
+	u32 type;
+	u32 class_info_offset;
+};
+
+/* Packet extension field contents associated with a Data message. */
+struct rndis_per_packet_info {
+	u32 size;
+	u32 type:31;
+	u32 internal:1;
+	u32 ppi_offset;
+};
+
+enum ndis_per_pkt_info_type {
+	TCPIP_CHKSUM_PKTINFO,
+	IPSEC_PKTINFO,
+	TCP_LARGESEND_PKTINFO,
+	CLASSIFICATION_HANDLE_PKTINFO,
+	NDIS_RESERVED,
+	SG_LIST_PKTINFO,
+	IEEE_8021Q_INFO,
+	ORIGINAL_PKTINFO,
+	PACKET_CANCEL_ID,
+	NBL_HASH_VALUE = PACKET_CANCEL_ID,
+	ORIGINAL_NET_BUFLIST,
+	CACHED_NET_BUFLIST,
+	SHORT_PKT_PADINFO,
+	MAX_PER_PKT_INFO
+};
+
+enum rndis_per_pkt_info_interal_type {
+	RNDIS_PKTINFO_ID = 1,
+	/* Add more members here */
+
+	RNDIS_PKTINFO_MAX
+};
+
+#define RNDIS_PKTINFO_SUBALLOC BIT(0)
+#define RNDIS_PKTINFO_1ST_FRAG BIT(1)
+#define RNDIS_PKTINFO_LAST_FRAG BIT(2)
+
+#define RNDIS_PKTINFO_ID_V1 1
+
+struct rndis_pktinfo_id {
+	u8 ver;
+	u8 flag;
+	u16 pkt_id;
+};
+
+struct ndis_object_header {
+	u8 type;
+	u8 revision;
+	u16 size;
+};
+
+#define NDIS_OBJECT_TYPE_DEFAULT	0x80
+#define NDIS_OFFLOAD_PARAMETERS_REVISION_3 3
+#define NDIS_OFFLOAD_PARAMETERS_REVISION_2 2
+#define NDIS_OFFLOAD_PARAMETERS_REVISION_1 1
+
+#define NDIS_OFFLOAD_PARAMETERS_NO_CHANGE 0
+#define NDIS_OFFLOAD_PARAMETERS_LSOV2_DISABLED 1
+#define NDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED  2
+#define NDIS_OFFLOAD_PARAMETERS_LSOV1_ENABLED  2
+#define NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED 1
+#define NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED 2
+#define NDIS_OFFLOAD_PARAMETERS_TX_RX_DISABLED 1
+#define NDIS_OFFLOAD_PARAMETERS_TX_ENABLED_RX_DISABLED 2
+#define NDIS_OFFLOAD_PARAMETERS_RX_ENABLED_TX_DISABLED 3
+#define NDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED 4
+
+#define NDIS_TCP_LARGE_SEND_OFFLOAD_V2_TYPE	1
+#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV4	0
+#define NDIS_TCP_LARGE_SEND_OFFLOAD_IPV6	1
+
+#define VERSION_4_OFFLOAD_SIZE			22
+/*
+ * New offload OIDs for NDIS 6
+ */
+#define OID_TCP_OFFLOAD_CURRENT_CONFIG 0xFC01020B /* query only */
+#define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C		/* set only */
+#define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D/* query only */
+#define OID_TCP_CONNECTION_OFFLOAD_CURRENT_CONFIG 0xFC01020E /* query only */
+#define OID_TCP_CONNECTION_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020F /* query */
+#define OID_OFFLOAD_ENCAPSULATION 0x0101010A /* set/query */
+
+/*
+ * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
+ * ndis_type: NDIS_OBJTYPE_OFFLOAD
+ */
+
+#define	NDIS_OFFLOAD_ENCAP_NONE		0x0000
+#define	NDIS_OFFLOAD_ENCAP_NULL		0x0001
+#define	NDIS_OFFLOAD_ENCAP_8023		0x0002
+#define	NDIS_OFFLOAD_ENCAP_8023PQ	0x0004
+#define	NDIS_OFFLOAD_ENCAP_8023PQ_OOB	0x0008
+#define	NDIS_OFFLOAD_ENCAP_RFC1483	0x0010
+
+struct ndis_csum_offload {
+	u32	ip4_txenc;
+	u32	ip4_txcsum;
+#define	NDIS_TXCSUM_CAP_IP4OPT		0x001
+#define	NDIS_TXCSUM_CAP_TCP4OPT		0x004
+#define	NDIS_TXCSUM_CAP_TCP4		0x010
+#define	NDIS_TXCSUM_CAP_UDP4		0x040
+#define	NDIS_TXCSUM_CAP_IP4		0x100
+
+#define NDIS_TXCSUM_ALL_TCP4	(NDIS_TXCSUM_CAP_TCP4 | NDIS_TXCSUM_CAP_TCP4OPT)
+
+	u32	ip4_rxenc;
+	u32	ip4_rxcsum;
+#define	NDIS_RXCSUM_CAP_IP4OPT		0x001
+#define	NDIS_RXCSUM_CAP_TCP4OPT		0x004
+#define	NDIS_RXCSUM_CAP_TCP4		0x010
+#define	NDIS_RXCSUM_CAP_UDP4		0x040
+#define	NDIS_RXCSUM_CAP_IP4		0x100
+	u32	ip6_txenc;
+	u32	ip6_txcsum;
+#define	NDIS_TXCSUM_CAP_IP6EXT		0x001
+#define	NDIS_TXCSUM_CAP_TCP6OPT		0x004
+#define	NDIS_TXCSUM_CAP_TCP6		0x010
+#define	NDIS_TXCSUM_CAP_UDP6		0x040
+	u32	ip6_rxenc;
+	u32	ip6_rxcsum;
+#define	NDIS_RXCSUM_CAP_IP6EXT		0x001
+#define	NDIS_RXCSUM_CAP_TCP6OPT		0x004
+#define	NDIS_RXCSUM_CAP_TCP6		0x010
+#define	NDIS_RXCSUM_CAP_UDP6		0x040
+
+#define NDIS_TXCSUM_ALL_TCP6	(NDIS_TXCSUM_CAP_TCP6 |		\
+				 NDIS_TXCSUM_CAP_TCP6OPT |	\
+				 NDIS_TXCSUM_CAP_IP6EXT)
+};
+
+struct ndis_lsov1_offload {
+	u32	encap;
+	u32	maxsize;
+	u32	minsegs;
+	u32	opts;
+};
+
+struct ndis_ipsecv1_offload {
+	u32	encap;
+	u32	ah_esp;
+	u32	xport_tun;
+	u32	ip4_opts;
+	u32	flags;
+	u32	ip4_ah;
+	u32	ip4_esp;
+};
+
+struct ndis_lsov2_offload {
+	u32	ip4_encap;
+	u32	ip4_maxsz;
+	u32	ip4_minsg;
+	u32	ip6_encap;
+	u32	ip6_maxsz;
+	u32	ip6_minsg;
+	u32	ip6_opts;
+#define	NDIS_LSOV2_CAP_IP6EXT		0x001
+#define	NDIS_LSOV2_CAP_TCP6OPT		0x004
+
+#define NDIS_LSOV2_CAP_IP6		(NDIS_LSOV2_CAP_IP6EXT | \
+					 NDIS_LSOV2_CAP_TCP6OPT)
+};
+
+struct ndis_ipsecv2_offload {
+	u32	encap;
+	u8	ip6;
+	u8	ip4opt;
+	u8	ip6ext;
+	u8	ah;
+	u8	esp;
+	u8	ah_esp;
+	u8	xport;
+	u8	tun;
+	u8	xport_tun;
+	u8	lso;
+	u8	extseq;
+	u32	udp_esp;
+	u32	auth;
+	u32	crypto;
+	u32	sa_caps;
+};
+
+struct ndis_rsc_offload {
+	u8	ip4;
+	u8	ip6;
+};
+
+struct ndis_encap_offload {
+	u32	flags;
+	u32	maxhdr;
+};
+
+struct ndis_offload {
+	struct ndis_object_header	header;
+	struct ndis_csum_offload	csum;
+	struct ndis_lsov1_offload	lsov1;
+	struct ndis_ipsecv1_offload	ipsecv1;
+	struct ndis_lsov2_offload	lsov2;
+	u32				flags;
+	/* NDIS >= 6.1 */
+	struct ndis_ipsecv2_offload	ipsecv2;
+	/* NDIS >= 6.30 */
+	struct ndis_rsc_offload		rsc;
+	struct ndis_encap_offload	encap_gre;
+};
+
+#define	NDIS_OFFLOAD_SIZE		sizeof(struct ndis_offload)
+#define	NDIS_OFFLOAD_SIZE_6_0		offsetof(struct ndis_offload, ipsecv2)
+#define	NDIS_OFFLOAD_SIZE_6_1		offsetof(struct ndis_offload, rsc)
+
+struct ndis_offload_params {
+	struct ndis_object_header header;
+	u8 ip_v4_csum;
+	u8 tcp_ip_v4_csum;
+	u8 udp_ip_v4_csum;
+	u8 tcp_ip_v6_csum;
+	u8 udp_ip_v6_csum;
+	u8 lso_v1;
+	u8 ip_sec_v1;
+	u8 lso_v2_ipv4;
+	u8 lso_v2_ipv6;
+	u8 tcp_connection_ip_v4;
+	u8 tcp_connection_ip_v6;
+	u32 flags;
+	u8 ip_sec_v2;
+	u8 ip_sec_v2_ip_v4;
+	struct {
+		u8 rsc_ip_v4;
+		u8 rsc_ip_v6;
+	};
+	struct {
+		u8 encapsulated_packet_task_offload;
+		u8 encapsulation_types;
+	};
+};
+
+struct ndis_tcp_lso_info {
+	union {
+		struct {
+			u32 unused:30;
+			u32 type:1;
+			u32 reserved2:1;
+		} transmit;
+		struct {
+			u32 mss:20;
+			u32 tcp_header_offset:10;
+			u32 type:1;
+			u32 reserved2:1;
+		} lso_v1_transmit;
+		struct {
+			u32 tcp_payload:30;
+			u32 type:1;
+			u32 reserved2:1;
+		} lso_v1_transmit_complete;
+		struct {
+			u32 mss:20;
+			u32 tcp_header_offset:10;
+			u32 type:1;
+			u32 ip_version:1;
+		} lso_v2_transmit;
+		struct {
+			u32 reserved:30;
+			u32 type:1;
+			u32 reserved2:1;
+		} lso_v2_transmit_complete;
+		u32  value;
+	};
+};
+
+#define NDIS_VLAN_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
+		sizeof(struct ndis_pkt_8021q_info))
+
+#define NDIS_CSUM_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
+		sizeof(struct ndis_tcp_ip_checksum_info))
+
+#define NDIS_LSO_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
+		sizeof(struct ndis_tcp_lso_info))
+
+#define NDIS_HASH_PPI_SIZE (sizeof(struct rndis_per_packet_info) + \
+		sizeof(u32))
+
+/* Total size of all PPI data */
+#define NDIS_ALL_PPI_SIZE (NDIS_VLAN_PPI_SIZE + NDIS_CSUM_PPI_SIZE + \
+			   NDIS_LSO_PPI_SIZE + NDIS_HASH_PPI_SIZE)
+
+/* Format of Information buffer passed in a SetRequest for the OID */
+/* OID_GEN_RNDIS_CONFIG_PARAMETER. */
+struct rndis_config_parameter_info {
+	u32 parameter_name_offset;
+	u32 parameter_name_length;
+	u32 parameter_type;
+	u32 parameter_value_offset;
+	u32 parameter_value_length;
+};
+
+/* Values for ParameterType in struct rndis_config_parameter_info */
+#define RNDIS_CONFIG_PARAM_TYPE_INTEGER     0
+#define RNDIS_CONFIG_PARAM_TYPE_STRING      2
+
+/* CONDIS Miniport messages for connection oriented devices */
+/* that do not implement a call manager. */
+
+/* CoNdisMiniportCreateVc message */
+struct rcondis_mp_create_vc {
+	u32 req_id;
+	u32 ndis_vc_handle;
+};
+
+/* Response to CoNdisMiniportCreateVc */
+struct rcondis_mp_create_vc_complete {
+	u32 req_id;
+	u32 dev_vc_handle;
+	u32 status;
+};
+
+/* CoNdisMiniportDeleteVc message */
+struct rcondis_mp_delete_vc {
+	u32 req_id;
+	u32 dev_vc_handle;
+};
+
+/* Response to CoNdisMiniportDeleteVc */
+struct rcondis_mp_delete_vc_complete {
+	u32 req_id;
+	u32 status;
+};
+
+/* CoNdisMiniportQueryRequest message */
+struct rcondis_mp_query_request {
+	u32 req_id;
+	u32 request_type;
+	u32 oid;
+	u32 dev_vc_handle;
+	u32 info_buflen;
+	u32 info_buf_offset;
+};
+
+/* CoNdisMiniportSetRequest message */
+struct rcondis_mp_set_request {
+	u32 req_id;
+	u32 request_type;
+	u32 oid;
+	u32 dev_vc_handle;
+	u32 info_buflen;
+	u32 info_buf_offset;
+};
+
+/* CoNdisIndicateStatus message */
+struct rcondis_indicate_status {
+	u32 ndis_vc_handle;
+	u32 status;
+	u32 status_buflen;
+	u32 status_buf_offset;
+};
+
+/* CONDIS Call/VC parameters */
+struct rcondis_specific_parameters {
+	u32 parameter_type;
+	u32 parameter_length;
+	u32 parameter_lffset;
+};
+
+struct rcondis_media_parameters {
+	u32 flags;
+	u32 reserved1;
+	u32 reserved2;
+	struct rcondis_specific_parameters media_specific;
+};
+
+struct rndis_flowspec {
+	u32 token_rate;
+	u32 token_bucket_size;
+	u32 peak_bandwidth;
+	u32 latency;
+	u32 delay_variation;
+	u32 service_type;
+	u32 max_sdu_size;
+	u32 minimum_policed_size;
+};
+
+struct rcondis_call_manager_parameters {
+	struct rndis_flowspec transmit;
+	struct rndis_flowspec receive;
+	struct rcondis_specific_parameters call_mgr_specific;
+};
+
+/* CoNdisMiniportActivateVc message */
+struct rcondis_mp_activate_vc_request {
+	u32 req_id;
+	u32 flags;
+	u32 dev_vc_handle;
+	u32 media_params_offset;
+	u32 media_params_length;
+	u32 call_mgr_params_offset;
+	u32 call_mgr_params_length;
+};
+
+/* Response to CoNdisMiniportActivateVc */
+struct rcondis_mp_activate_vc_complete {
+	u32 req_id;
+	u32 status;
+};
+
+/* CoNdisMiniportDeactivateVc message */
+struct rcondis_mp_deactivate_vc_request {
+	u32 req_id;
+	u32 flags;
+	u32 dev_vc_handle;
+};
+
+/* Response to CoNdisMiniportDeactivateVc */
+struct rcondis_mp_deactivate_vc_complete {
+	u32 req_id;
+	u32 status;
+};
+
+
+/* union with all of the RNDIS messages */
+union rndis_message_container {
+	struct rndis_packet pkt;
+	struct rndis_initialize_request init_req;
+	struct rndis_halt_request halt_req;
+	struct rndis_query_request query_req;
+	struct rndis_set_request set_req;
+	struct rndis_reset_request reset_req;
+	struct rndis_keepalive_request keep_alive_req;
+	struct rndis_indicate_status indicate_status;
+	struct rndis_initialize_complete init_complete;
+	struct rndis_query_complete query_complete;
+	struct rndis_set_complete set_complete;
+	struct rndis_reset_complete reset_complete;
+	struct rndis_keepalive_complete keep_alive_complete;
+	struct rcondis_mp_create_vc co_miniport_create_vc;
+	struct rcondis_mp_delete_vc co_miniport_delete_vc;
+	struct rcondis_indicate_status co_indicate_status;
+	struct rcondis_mp_activate_vc_request co_miniport_activate_vc;
+	struct rcondis_mp_deactivate_vc_request co_miniport_deactivate_vc;
+	struct rcondis_mp_create_vc_complete co_miniport_create_vc_complete;
+	struct rcondis_mp_delete_vc_complete co_miniport_delete_vc_complete;
+	struct rcondis_mp_activate_vc_complete co_miniport_activate_vc_complete;
+	struct rcondis_mp_deactivate_vc_complete
+		co_miniport_deactivate_vc_complete;
+};
+
+/* Remote NDIS message format */
+struct rndis_message {
+	u32 ndis_msg_type;
+
+	/* Total length of this message, from the beginning */
+	/* of the struct rndis_message, in bytes. */
+	u32 msg_len;
+
+	/* Actual message */
+	union rndis_message_container msg;
+};
+
+
+/* Handy macros */
+
+/* get the size of an RNDIS message. Pass in the message type, */
+/* struct rndis_set_request, struct rndis_packet for example */
+#define RNDIS_MESSAGE_SIZE(msg)				\
+	(sizeof(msg) + (sizeof(struct rndis_message) -	\
+	 sizeof(union rndis_message_container)))
+
+#define RNDIS_HEADER_SIZE	(sizeof(struct rndis_message) - \
+				 sizeof(union rndis_message_container))
+
+#define RNDIS_AND_PPI_SIZE (sizeof(struct rndis_message) + NDIS_ALL_PPI_SIZE)
+
+#define NDIS_PACKET_TYPE_DIRECTED	0x00000001
+#define NDIS_PACKET_TYPE_MULTICAST	0x00000002
+#define NDIS_PACKET_TYPE_ALL_MULTICAST	0x00000004
+#define NDIS_PACKET_TYPE_BROADCAST	0x00000008
+#define NDIS_PACKET_TYPE_SOURCE_ROUTING	0x00000010
+#define NDIS_PACKET_TYPE_PROMISCUOUS	0x00000020
+#define NDIS_PACKET_TYPE_SMT		0x00000040
+#define NDIS_PACKET_TYPE_ALL_LOCAL	0x00000080
+#define NDIS_PACKET_TYPE_GROUP		0x00000100
+#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL	0x00000200
+#define NDIS_PACKET_TYPE_FUNCTIONAL	0x00000400
+#define NDIS_PACKET_TYPE_MAC_FRAME	0x00000800
+
+#define TRANSPORT_INFO_NOT_IP   0
+#define TRANSPORT_INFO_IPV4_TCP 0x01
+#define TRANSPORT_INFO_IPV4_UDP 0x02
+#define TRANSPORT_INFO_IPV6_TCP 0x10
+#define TRANSPORT_INFO_IPV6_UDP 0x20
+
+#define RETRY_US_LO	5000
+#define RETRY_US_HI	10000
+#define RETRY_MAX	2000	/* >10 sec */
+
+void netvsc_dma_unmap(struct hv_device *hv_dev,
+		      struct hv_netvsc_packet *packet);
+#endif /* _HYPERV_NET_H */