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freebsd-dev/sys/net/rndis.h
Wei Hu a491581f3f Hyper-V: hn: Enable vSwitch RSC support in hn netvsc driver 
Receive Segment Coalescing (RSC) in the vSwitch is a feature available in
Windows Server 2019 hosts and later. It reduces the per packet processing
overhead by coalescing multiple TCP segments when possible. This happens
mostly when TCP traffics are among different guests on same host.
This patch adds netvsc driver support for this feature.

The patch also updates NVS version to 6.1 as needed for RSC
enablement.

MFC after:	2 weeks
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D29075
2021-03-12 04:35:16 +00:00

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/* $FreeBSD$ */
/* $OpenBSD: if_urndisreg.h,v 1.19 2013/11/21 14:08:05 mpi Exp $ */
/*
* Copyright (c) 2010 Jonathan Armani <armani@openbsd.org>
* Copyright (c) 2010 Fabien Romano <fabien@openbsd.org>
* Copyright (c) 2010 Michael Knudsen <mk@openbsd.org>
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _NET_RNDIS_H_
#define _NET_RNDIS_H_
/* Canonical major/minor version as of 22th Aug. 2016. */
#define RNDIS_VERSION_MAJOR 0x00000001
#define RNDIS_VERSION_MINOR 0x00000000
#define RNDIS_STATUS_SUCCESS 0x00000000L
#define RNDIS_STATUS_PENDING 0x00000103L
#define RNDIS_STATUS_MEDIA_CONNECT 0x4001000BL
#define RNDIS_STATUS_MEDIA_DISCONNECT 0x4001000CL
#define RNDIS_STATUS_LINK_SPEED_CHANGE 0x40010013L
#define RNDIS_STATUS_NETWORK_CHANGE 0x40010018L
#define RNDIS_STATUS_TASK_OFFLOAD_CURRENT_CONFIG 0x40020006L
#define RNDIS_STATUS_BUFFER_OVERFLOW 0x80000005L
#define RNDIS_STATUS_FAILURE 0xC0000001L
#define RNDIS_STATUS_NOT_SUPPORTED 0xC00000BBL
#define RNDIS_STATUS_RESOURCES 0xC000009AL
#define RNDIS_STATUS_INVALID_DATA 0xC0010015L
#define OID_GEN_SUPPORTED_LIST 0x00010101
#define OID_GEN_HARDWARE_STATUS 0x00010102
#define OID_GEN_MEDIA_SUPPORTED 0x00010103
#define OID_GEN_MEDIA_IN_USE 0x00010104
#define OID_GEN_MAXIMUM_LOOKAHEAD 0x00010105
#define OID_GEN_MAXIMUM_FRAME_SIZE 0x00010106
#define OID_GEN_LINK_SPEED 0x00010107
#define OID_GEN_TRANSMIT_BUFFER_SPACE 0x00010108
#define OID_GEN_RECEIVE_BUFFER_SPACE 0x00010109
#define OID_GEN_TRANSMIT_BLOCK_SIZE 0x0001010A
#define OID_GEN_RECEIVE_BLOCK_SIZE 0x0001010B
#define OID_GEN_VENDOR_ID 0x0001010C
#define OID_GEN_VENDOR_DESCRIPTION 0x0001010D
#define OID_GEN_CURRENT_PACKET_FILTER 0x0001010E
#define OID_GEN_CURRENT_LOOKAHEAD 0x0001010F
#define OID_GEN_DRIVER_VERSION 0x00010110
#define OID_GEN_MAXIMUM_TOTAL_SIZE 0x00010111
#define OID_GEN_PROTOCOL_OPTIONS 0x00010112
#define OID_GEN_MAC_OPTIONS 0x00010113
#define OID_GEN_MEDIA_CONNECT_STATUS 0x00010114
#define OID_GEN_MAXIMUM_SEND_PACKETS 0x00010115
#define OID_GEN_VENDOR_DRIVER_VERSION 0x00010116
#define OID_GEN_SUPPORTED_GUIDS 0x00010117
#define OID_GEN_NETWORK_LAYER_ADDRESSES 0x00010118
#define OID_GEN_TRANSPORT_HEADER_OFFSET 0x00010119
#define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203
#define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204
#define OID_GEN_MACHINE_NAME 0x0001021A
#define OID_GEN_RNDIS_CONFIG_PARAMETER 0x0001021B
#define OID_GEN_VLAN_ID 0x0001021C
#define OID_802_3_PERMANENT_ADDRESS 0x01010101
#define OID_802_3_CURRENT_ADDRESS 0x01010102
#define OID_802_3_MULTICAST_LIST 0x01010103
#define OID_802_3_MAXIMUM_LIST_SIZE 0x01010104
#define OID_802_3_MAC_OPTIONS 0x01010105
#define OID_802_3_RCV_ERROR_ALIGNMENT 0x01020101
#define OID_802_3_XMIT_ONE_COLLISION 0x01020102
#define OID_802_3_XMIT_MORE_COLLISIONS 0x01020103
#define OID_802_3_XMIT_DEFERRED 0x01020201
#define OID_802_3_XMIT_MAX_COLLISIONS 0x01020202
#define OID_802_3_RCV_OVERRUN 0x01020203
#define OID_802_3_XMIT_UNDERRUN 0x01020204
#define OID_802_3_XMIT_HEARTBEAT_FAILURE 0x01020205
#define OID_802_3_XMIT_TIMES_CRS_LOST 0x01020206
#define OID_802_3_XMIT_LATE_COLLISIONS 0x01020207
#define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C
#define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D
#define RNDIS_MEDIUM_802_3 0x00000000
/* Device flags */
#define RNDIS_DF_CONNECTIONLESS 0x00000001
#define RNDIS_DF_CONNECTION_ORIENTED 0x00000002
/*
* Common RNDIS message header.
*/
struct rndis_msghdr {
uint32_t rm_type;
uint32_t rm_len;
};
/*
* RNDIS data message
*/
#define REMOTE_NDIS_PACKET_MSG 0x00000001
struct rndis_packet_msg {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_dataoffset;
uint32_t rm_datalen;
uint32_t rm_oobdataoffset;
uint32_t rm_oobdatalen;
uint32_t rm_oobdataelements;
uint32_t rm_pktinfooffset;
uint32_t rm_pktinfolen;
uint32_t rm_vchandle;
uint32_t rm_reserved;
};
/*
* Minimum value for rm_dataoffset, rm_oobdataoffset, and
* rm_pktinfooffset.
*/
#define RNDIS_PACKET_MSG_OFFSET_MIN \
(sizeof(struct rndis_packet_msg) - \
__offsetof(struct rndis_packet_msg, rm_dataoffset))
/* Offset from the beginning of rndis_packet_msg. */
#define RNDIS_PACKET_MSG_OFFSET_ABS(ofs) \
((ofs) + __offsetof(struct rndis_packet_msg, rm_dataoffset))
#define RNDIS_PACKET_MSG_OFFSET_ALIGN 4
#define RNDIS_PACKET_MSG_OFFSET_ALIGNMASK \
(RNDIS_PACKET_MSG_OFFSET_ALIGN - 1)
/* Per-packet-info for RNDIS data message */
struct rndis_pktinfo {
uint32_t rm_size;
uint32_t rm_type:31; /* NDIS_PKTINFO_TYPE_ */
uint32_t rm_internal:1; /* Indicate if internal type */
uint32_t rm_pktinfooffset;
uint8_t rm_data[];
};
#define RNDIS_PKTINFO_OFFSET \
__offsetof(struct rndis_pktinfo, rm_data[0])
#define RNDIS_PKTINFO_SIZE_ALIGN 4
#define RNDIS_PKTINFO_SIZE_ALIGNMASK (RNDIS_PKTINFO_SIZE_ALIGN - 1)
#define NDIS_PKTINFO_TYPE_CSUM 0
#define NDIS_PKTINFO_TYPE_IPSEC 1
#define NDIS_PKTINFO_TYPE_LSO 2
#define NDIS_PKTINFO_TYPE_CLASSIFY 3
/* reserved 4 */
#define NDIS_PKTINFO_TYPE_SGLIST 5
#define NDIS_PKTINFO_TYPE_VLAN 6
#define NDIS_PKTINFO_TYPE_ORIG 7
#define NDIS_PKTINFO_TYPE_PKT_CANCELID 8
#define NDIS_PKTINFO_TYPE_ORIG_NBLIST 9
#define NDIS_PKTINFO_TYPE_CACHE_NBLIST 10
#define NDIS_PKTINFO_TYPE_PKT_PAD 11
/* Per-packet-info internal type */
#define NDIS_PKTINFO_IT_PKTINFO_ID 1
/* Add more internal type here */
/*
* RNDIS control messages
*/
/*
* Common header for RNDIS completion messages.
*
* NOTE: It does not apply to REMOTE_NDIS_RESET_CMPLT.
*/
struct rndis_comp_hdr {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
};
/* Initialize the device. */
#define REMOTE_NDIS_INITIALIZE_MSG 0x00000002
#define REMOTE_NDIS_INITIALIZE_CMPLT 0x80000002
struct rndis_init_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_ver_major;
uint32_t rm_ver_minor;
uint32_t rm_max_xfersz;
};
struct rndis_init_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
uint32_t rm_ver_major;
uint32_t rm_ver_minor;
uint32_t rm_devflags;
uint32_t rm_medium;
uint32_t rm_pktmaxcnt;
uint32_t rm_pktmaxsz;
uint32_t rm_align;
uint32_t rm_aflistoffset;
uint32_t rm_aflistsz;
};
#define RNDIS_INIT_COMP_SIZE_MIN \
__offsetof(struct rndis_init_comp, rm_aflistsz)
/* Halt the device. No response sent. */
#define REMOTE_NDIS_HALT_MSG 0x00000003
struct rndis_halt_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
};
/* Send a query object. */
#define REMOTE_NDIS_QUERY_MSG 0x00000004
#define REMOTE_NDIS_QUERY_CMPLT 0x80000004
struct rndis_query_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_oid;
uint32_t rm_infobuflen;
uint32_t rm_infobufoffset;
uint32_t rm_devicevchdl;
};
#define RNDIS_QUERY_REQ_INFOBUFOFFSET \
(sizeof(struct rndis_query_req) - \
__offsetof(struct rndis_query_req, rm_rid))
struct rndis_query_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
uint32_t rm_infobuflen;
uint32_t rm_infobufoffset;
};
/* infobuf offset from the beginning of rndis_query_comp. */
#define RNDIS_QUERY_COMP_INFOBUFOFFSET_ABS(ofs) \
((ofs) + __offsetof(struct rndis_query_req, rm_rid))
/* Send a set object request. */
#define REMOTE_NDIS_SET_MSG 0x00000005
#define REMOTE_NDIS_SET_CMPLT 0x80000005
struct rndis_set_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_oid;
uint32_t rm_infobuflen;
uint32_t rm_infobufoffset;
uint32_t rm_devicevchdl;
};
#define RNDIS_SET_REQ_INFOBUFOFFSET \
(sizeof(struct rndis_set_req) - \
__offsetof(struct rndis_set_req, rm_rid))
struct rndis_set_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
};
/*
* Parameter used by OID_GEN_RNDIS_CONFIG_PARAMETER.
*/
#define REMOTE_NDIS_SET_PARAM_NUMERIC 0x00000000
#define REMOTE_NDIS_SET_PARAM_STRING 0x00000002
struct rndis_set_parameter {
uint32_t rm_nameoffset;
uint32_t rm_namelen;
uint32_t rm_type;
uint32_t rm_valueoffset;
uint32_t rm_valuelen;
};
/* Perform a soft reset on the device. */
#define REMOTE_NDIS_RESET_MSG 0x00000006
#define REMOTE_NDIS_RESET_CMPLT 0x80000006
struct rndis_reset_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
};
struct rndis_reset_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_status;
uint32_t rm_adrreset;
};
/* 802.3 link-state or undefined message error. Sent by device. */
#define REMOTE_NDIS_INDICATE_STATUS_MSG 0x00000007
struct rndis_status_msg {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_status;
uint32_t rm_stbuflen;
uint32_t rm_stbufoffset;
/* rndis_diag_info */
};
/* stbuf offset from the beginning of rndis_status_msg. */
#define RNDIS_STBUFOFFSET_ABS(ofs) \
((ofs) + __offsetof(struct rndis_status_msg, rm_status))
/*
* Immediately after rndis_status_msg.rm_stbufoffset, if a control
* message is malformatted, or a packet message contains inappropriate
* content.
*/
struct rndis_diag_info {
uint32_t rm_diagstatus;
uint32_t rm_erroffset;
};
/* Keepalive messsage. May be sent by device. */
#define REMOTE_NDIS_KEEPALIVE_MSG 0x00000008
#define REMOTE_NDIS_KEEPALIVE_CMPLT 0x80000008
struct rndis_keepalive_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
};
struct rndis_keepalive_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
};
/* Packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
#define NDIS_PACKET_TYPE_NONE 0x00000000
#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 0x00001000
#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00002000
#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00004000
#define NDIS_PACKET_TYPE_MAC_FRAME 0x00008000
/*
* Packet filter description for use with printf(9) %b identifier.
*/
#define NDIS_PACKET_TYPES \
"\20\1DIRECT\2MULTICAST\3ALLMULTI\4BROADCAST" \
"\5SRCROUTE\6PROMISC\7SMT\10ALLLOCAL" \
"\11GROUP\12ALLFUNC\13FUNC\14MACFRAME"
/* RNDIS offsets */
#define RNDIS_HEADER_OFFSET ((uint32_t)sizeof(struct rndis_msghdr))
#define RNDIS_DATA_OFFSET \
((uint32_t)(sizeof(struct rndis_packet_msg) - RNDIS_HEADER_OFFSET))
#endif /* !_NET_RNDIS_H_ */
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