Release 4.16 drivers/net/hyperv/hyperv_net.h
/*
*
* Copyright (c) 2011, Microsoft Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, see <http://www.gnu.org/licenses/>.
*
* 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>
/* 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 kashkey_offset;
u32 processor_masks_offset;
u32 num_processor_masks;
u32 processor_masks_entry_size;
};
/* Fwd declaration */
struct ndis_tcp_ip_checksum_info;
struct ndis_pkt_8021q_info;
/*
* 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 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;
};
enum rndis_device_state {
RNDIS_DEV_UNINITIALIZED = 0,
RNDIS_DEV_INITIALIZING,
RNDIS_DEV_INITIALIZED,
RNDIS_DEV_DATAINITIALIZED,
};
#define NETVSC_HASH_KEYLEN 40
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];
u16 rx_table[ITAB_NUM];
};
/* Interface */
struct rndis_message;
struct netvsc_device;
struct net_device_context;
extern u32 netvsc_ring_bytes;
extern struct reciprocal_value netvsc_ring_reciprocal;
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);
void netvsc_linkstatus_callback(struct net_device *net,
struct rndis_message *resp);
int netvsc_recv_callback(struct net_device *net,
struct netvsc_device *nvdev,
struct vmbus_channel *channel,
void *data, u32 len,
const struct ndis_tcp_ip_checksum_info *csum_info,
const struct ndis_pkt_8021q_info *vlan);
void netvsc_channel_cb(void *context);
int netvsc_poll(struct napi_struct *napi, int budget);
void rndis_set_subchannel(struct work_struct *w);
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_receive(struct net_device *ndev,
struct netvsc_device *net_dev,
struct vmbus_channel *channel,
void *data, u32 buflen);
int rndis_filter_set_device_mac(struct netvsc_device *ndev,
const char *mac);
void 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
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,
};
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;
};
};
} __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 top of this struct.
* 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;
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;
} __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)
#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
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 */
};
struct netvsc_stats {
u64 packets;
u64 bytes;
u64 broadcast;
u64 multicast;
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;
};
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;
/* 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];
/* 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;
};
/* Per channel data */
struct netvsc_channel {
struct vmbus_channel *channel;
struct netvsc_device *net_device;
const struct vmpacket_descriptor *desc;
struct napi_struct napi;
struct multi_send_data msd;
struct multi_recv_comp mrc;
atomic_t queue_sends;
struct netvsc_stats tx_stats;
struct netvsc_stats rx_stats;
};
/* Per netvsc device */
struct netvsc_device {
u32 nvsp_version;
wait_queue_head_t wait_drain;
bool destroy;
/* Receive buffer allocated by us but manages by NetVSP */
void *recv_buf;
u32 recv_buf_gpadl_handle;
u32 recv_section_cnt;
u32 recv_section_size;
u32 recv_completion_cnt;
/* Send buffer allocated by us */
void *send_buf;
u32 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;
};
/* 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;
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
};
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;
};
};
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;
u16 ip6;
u16 ip4opt;
u16 ip6ext;
u16 ah;
u16 esp;
u16 ah_esp;
u16 xport;
u16 tun;
u16 xport_tun;
u16 lso;
u16 extseq;
u32 udp_esp;
u32 auth;
u32 crypto;
u32 sa_caps;
};
struct ndis_rsc_offload {
u16 ip4;
u16 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_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_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
#endif /* _HYPERV_NET_H */
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| Person | Tokens | Prop | Commits | CommitProp |
| K. Y. Srinivasan | 1779 | 51.08% | 29 | 24.79% |
| Haiyang Zhang | 870 | 24.98% | 30 | 25.64% |
| Stephen Hemminger | 694 | 19.93% | 37 | 31.62% |
| Vitaly Kuznetsov | 62 | 1.78% | 7 | 5.98% |
| Simon Xiao | 58 | 1.67% | 6 | 5.13% |
| Alex Ng | 6 | 0.17% | 1 | 0.85% |
| Andrew Schwartzmeyer | 6 | 0.17% | 2 | 1.71% |
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