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Catch exceptions during EFI RT calls on amd64.
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Authored by kib on Aug 31 2018, 8:25 AM.
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andrew
emaste

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kevans
imp
manu
Commits
rS338437: Catch exceptions during EFI RT calls on amd64.
rS338436: Add amd64 mdthread fields needed for the upcoming EFI RT exception
rS338435: Improve error messages from clock_if.m method failures.
rS338434: Swap order of dererencing PCPU curpmap and checking for usermode in
rS338433: Normalize use of semicolon with EFI_TIME_LOCK macros.

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kib created this revision.Aug 31 2018, 8:25 AM
Herald added a reviewer: manu. · View Herald TranscriptAug 31 2018, 8:25 AM
Herald added subscribers: emaste, andrew. · View Herald Transcript
Harbormaster completed remote builds in B19320: Diff 47523.Aug 31 2018, 8:25 AM
kib updated this revision to Diff 47525.Aug 31 2018, 1:00 PM

Add knob to enable/disable fault trapping around rt calls.
If verbose, report call fault.

Harbormaster completed remote builds in B19321: Diff 47525.Aug 31 2018, 1:00 PM
kevans accepted this revision.Sep 1 2018, 8:00 PM
This revision is now accepted and ready to land.Sep 1 2018, 8:00 PM
Closed by commit rS338433: Normalize use of semicolon with EFI_TIME_LOCK macros. (authored by kib). · Explain WhySep 2 2018, 7:49 PM
This revision was automatically updated to reflect the committed changes.
kib reopened this revision.Sep 2 2018, 7:49 PM
This revision was not accepted when it landed; it landed in state Needs Review.Sep 2 2018, 8:07 PM
Closed by commit rS338434: Swap order of dererencing PCPU curpmap and checking for usermode in (authored by kib). · Explain Why
This revision was automatically updated to reflect the committed changes.
kib reopened this revision.Sep 2 2018, 8:08 PM
This revision was not accepted when it landed; it landed in state Needs Review.Sep 2 2018, 8:18 PM
Closed by commit rS338435: Improve error messages from clock_if.m method failures. (authored by kib). · Explain Why
This revision was automatically updated to reflect the committed changes.
kib reopened this revision.Sep 2 2018, 8:24 PM
This revision was not accepted when it landed; it landed in state Needs Review.Sep 2 2018, 9:17 PM
Closed by commit rS338436: Add amd64 mdthread fields needed for the upcoming EFI RT exception (authored by kib). · Explain Why
This revision was automatically updated to reflect the committed changes.
kib reopened this revision.Sep 2 2018, 9:19 PM
This revision was not accepted when it landed; it landed in state Needs Review.Sep 2 2018, 9:37 PM
Closed by commit rS338437: Catch exceptions during EFI RT calls on amd64. (authored by kib). · Explain Why
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathSize
head/
sys/
amd64/
amd64/
3 lines
116 lines
20 lines
include/
21 lines
arm64/
arm64/
7 lines
include/
14 lines
conf/
1 line
dev/
efidev/
180 lines
modules/
efirt/
7 lines
sys/
3 lines

Diff 47598

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head/sys/amd64/amd64/efirt_machdep.c

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* *
* $FreeBSD$ * $FreeBSD$
*/ */
#ifndef _VIRTIO_NET_H #ifndef _VIRTIO_NET_H
#define _VIRTIO_NET_H #define _VIRTIO_NET_H
/* The feature bitmap for virtio net */ /* The feature bitmap for virtio net */
#define VIRTIO_NET_F_CSUM 0x00001 /* Host handles pkts w/ partial csum */ #define VIRTIO_NET_F_CSUM 0x000001 /* Host handles pkts w/ partial csum */
#define VIRTIO_NET_F_GUEST_CSUM 0x00002 /* Guest handles pkts w/ partial csum*/ #define VIRTIO_NET_F_GUEST_CSUM 0x000002 /* Guest handles pkts w/ partial csum*/
#define VIRTIO_NET_F_MAC 0x00020 /* Host has given MAC address. */ #define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 0x000004 /* Dynamic offload configuration. */
#define VIRTIO_NET_F_GSO 0x00040 /* Host handles pkts w/ any GSO type */ #define VIRTIO_NET_F_MTU 0x000008 /* Initial MTU advice */
#define VIRTIO_NET_F_GUEST_TSO4 0x00080 /* Guest can handle TSOv4 in. */ #define VIRTIO_NET_F_MAC 0x000020 /* Host has given MAC address. */
#define VIRTIO_NET_F_GUEST_TSO6 0x00100 /* Guest can handle TSOv6 in. */ #define VIRTIO_NET_F_GSO 0x000040 /* Host handles pkts w/ any GSO type */
#define VIRTIO_NET_F_GUEST_ECN 0x00200 /* Guest can handle TSO[6] w/ ECN in.*/ #define VIRTIO_NET_F_GUEST_TSO4 0x000080 /* Guest can handle TSOv4 in. */
#define VIRTIO_NET_F_GUEST_UFO 0x00400 /* Guest can handle UFO in. */ #define VIRTIO_NET_F_GUEST_TSO6 0x000100 /* Guest can handle TSOv6 in. */
#define VIRTIO_NET_F_HOST_TSO4 0x00800 /* Host can handle TSOv4 in. */ #define VIRTIO_NET_F_GUEST_ECN 0x000200 /* Guest can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_HOST_TSO6 0x01000 /* Host can handle TSOv6 in. */ #define VIRTIO_NET_F_GUEST_UFO 0x000400 /* Guest can handle UFO in. */
#define VIRTIO_NET_F_HOST_ECN 0x02000 /* Host can handle TSO[6] w/ ECN in. */ #define VIRTIO_NET_F_HOST_TSO4 0x000800 /* Host can handle TSOv4 in. */
#define VIRTIO_NET_F_HOST_UFO 0x04000 /* Host can handle UFO in. */ #define VIRTIO_NET_F_HOST_TSO6 0x001000 /* Host can handle TSOv6 in. */
#define VIRTIO_NET_F_MRG_RXBUF 0x08000 /* Host can merge receive buffers. */ #define VIRTIO_NET_F_HOST_ECN 0x002000 /* Host can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_STATUS 0x10000 /* virtio_net_config.status available*/ #define VIRTIO_NET_F_HOST_UFO 0x004000 /* Host can handle UFO in. */
#define VIRTIO_NET_F_CTRL_VQ 0x20000 /* Control channel available */ #define VIRTIO_NET_F_MRG_RXBUF 0x008000 /* Host can merge receive buffers. */
#define VIRTIO_NET_F_CTRL_RX 0x40000 /* Control channel RX mode support */ #define VIRTIO_NET_F_STATUS 0x010000 /* virtio_net_config.status available*/
#define VIRTIO_NET_F_CTRL_VLAN 0x80000 /* Control channel VLAN filtering */ #define VIRTIO_NET_F_CTRL_VQ 0x020000 /* Control channel available */
#define VIRTIO_NET_F_CTRL_RX 0x040000 /* Control channel RX mode support */
#define VIRTIO_NET_F_CTRL_VLAN 0x080000 /* Control channel VLAN filtering */
#define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */ #define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */
#define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */ #define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */
#define VIRTIO_NET_F_MQ 0x400000 /* Device supports RFS */ #define VIRTIO_NET_F_MQ 0x400000 /* Device supports Receive Flow Steering */
#define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */ #define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */
#define VIRTIO_NET_F_SPEED_DUPLEX (1ULL << 63) /* Device set linkspeed and duplex */
#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */
struct virtio_net_config { struct virtio_net_config {
/* The config defining mac address (if VIRTIO_NET_F_MAC) */ /* The config defining mac address (if VIRTIO_NET_F_MAC) */
uint8_t mac[ETHER_ADDR_LEN]; uint8_t mac[ETHER_ADDR_LEN];
/* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
uint16_t status; uint16_t status;
/* Maximum number of each of transmit and receive queues; /* Maximum number of each of transmit and receive queues;
* see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ. * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ.
* Legal values are between 1 and 0x8000. * Legal values are between 1 and 0x8000.
*/ */
uint16_t max_virtqueue_pairs; uint16_t max_virtqueue_pairs;
/* Default maximum transmit unit advice */
uint16_t mtu;
/*
* speed, in units of 1Mb. All values 0 to INT_MAX are legal.
* Any other value stands for unknown.
*/
uint32_t speed;
/*
* 0x00 - half duplex
* 0x01 - full duplex
* Any other value stands for unknown.
*/
uint8_t duplex;
} __packed; } __packed;
/* /*
* This is the first element of the scatter-gather list. If you don't * This header comes first in the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header. * specify GSO or CSUM features, you can simply ignore the header.
*
* This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf,
* only flattened.
*/ */
struct virtio_net_hdr { struct virtio_net_hdr_v1 {
#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start,csum_offset*/ #define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ #define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */
uint8_t flags; uint8_t flags;
#define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */ #define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */
#define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */ #define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */
#define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */ #define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */
#define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */ #define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */
#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */ #define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */
uint8_t gso_type; uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */ uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */ uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */ uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */ uint16_t csum_offset; /* Offset after that to place checksum */
uint16_t num_buffers; /* Number of merged rx buffers */
}; };
/* /*
* This header comes first in the scatter-gather list.
* For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
* be the first element of the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header.
*/
struct virtio_net_hdr {
/* See VIRTIO_NET_HDR_F_* */
uint8_t flags;
/* See VIRTIO_NET_HDR_GSO_* */
uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */
};
/*
* This is the version of the header to use when the MRG_RXBUF * This is the version of the header to use when the MRG_RXBUF
* feature has been negotiated. * feature has been negotiated.
*/ */
struct virtio_net_hdr_mrg_rxbuf { struct virtio_net_hdr_mrg_rxbuf {
struct virtio_net_hdr hdr; struct virtio_net_hdr hdr;
uint16_t num_buffers; /* Number of merged rx buffers */ uint16_t num_buffers; /* Number of merged rx buffers */
}; };
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struct virtio_net_ctrl_mq { struct virtio_net_ctrl_mq {
uint16_t virtqueue_pairs; uint16_t virtqueue_pairs;
} __packed; } __packed;
#define VIRTIO_NET_CTRL_MQ 4 #define VIRTIO_NET_CTRL_MQ 4
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
/*
* Control network offloads
*
* Reconfigures the network offloads that Guest can handle.
*
* Available with the VIRTIO_NET_F_CTRL_GUEST_OFFLOADS feature bit.
*
* Command data format matches the feature bit mask exactly.
*
* See VIRTIO_NET_F_GUEST_* for the list of offloads
* that can be enabled/disabled.
*/
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS 5
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET 0
/* /*
* Use the checksum offset in the VirtIO header to set the * Use the checksum offset in the VirtIO header to set the
* correct CSUM_* flags. * correct CSUM_* flags.
*/ */
static inline int static inline int
virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start, virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start,
struct virtio_net_hdr *hdr) struct virtio_net_hdr *hdr)
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head/sys/amd64/amd64/efirt_support.S

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* *
* $FreeBSD$ * $FreeBSD$
*/ */
#ifndef _VIRTIO_NET_H #ifndef _VIRTIO_NET_H
#define _VIRTIO_NET_H #define _VIRTIO_NET_H
/* The feature bitmap for virtio net */ /* The feature bitmap for virtio net */
#define VIRTIO_NET_F_CSUM 0x00001 /* Host handles pkts w/ partial csum */ #define VIRTIO_NET_F_CSUM 0x000001 /* Host handles pkts w/ partial csum */
#define VIRTIO_NET_F_GUEST_CSUM 0x00002 /* Guest handles pkts w/ partial csum*/ #define VIRTIO_NET_F_GUEST_CSUM 0x000002 /* Guest handles pkts w/ partial csum*/
#define VIRTIO_NET_F_MAC 0x00020 /* Host has given MAC address. */ #define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 0x000004 /* Dynamic offload configuration. */
#define VIRTIO_NET_F_GSO 0x00040 /* Host handles pkts w/ any GSO type */ #define VIRTIO_NET_F_MTU 0x000008 /* Initial MTU advice */
#define VIRTIO_NET_F_GUEST_TSO4 0x00080 /* Guest can handle TSOv4 in. */ #define VIRTIO_NET_F_MAC 0x000020 /* Host has given MAC address. */
#define VIRTIO_NET_F_GUEST_TSO6 0x00100 /* Guest can handle TSOv6 in. */ #define VIRTIO_NET_F_GSO 0x000040 /* Host handles pkts w/ any GSO type */
#define VIRTIO_NET_F_GUEST_ECN 0x00200 /* Guest can handle TSO[6] w/ ECN in.*/ #define VIRTIO_NET_F_GUEST_TSO4 0x000080 /* Guest can handle TSOv4 in. */
#define VIRTIO_NET_F_GUEST_UFO 0x00400 /* Guest can handle UFO in. */ #define VIRTIO_NET_F_GUEST_TSO6 0x000100 /* Guest can handle TSOv6 in. */
#define VIRTIO_NET_F_HOST_TSO4 0x00800 /* Host can handle TSOv4 in. */ #define VIRTIO_NET_F_GUEST_ECN 0x000200 /* Guest can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_HOST_TSO6 0x01000 /* Host can handle TSOv6 in. */ #define VIRTIO_NET_F_GUEST_UFO 0x000400 /* Guest can handle UFO in. */
#define VIRTIO_NET_F_HOST_ECN 0x02000 /* Host can handle TSO[6] w/ ECN in. */ #define VIRTIO_NET_F_HOST_TSO4 0x000800 /* Host can handle TSOv4 in. */
#define VIRTIO_NET_F_HOST_UFO 0x04000 /* Host can handle UFO in. */ #define VIRTIO_NET_F_HOST_TSO6 0x001000 /* Host can handle TSOv6 in. */
#define VIRTIO_NET_F_MRG_RXBUF 0x08000 /* Host can merge receive buffers. */ #define VIRTIO_NET_F_HOST_ECN 0x002000 /* Host can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_STATUS 0x10000 /* virtio_net_config.status available*/ #define VIRTIO_NET_F_HOST_UFO 0x004000 /* Host can handle UFO in. */
#define VIRTIO_NET_F_CTRL_VQ 0x20000 /* Control channel available */ #define VIRTIO_NET_F_MRG_RXBUF 0x008000 /* Host can merge receive buffers. */
#define VIRTIO_NET_F_CTRL_RX 0x40000 /* Control channel RX mode support */ #define VIRTIO_NET_F_STATUS 0x010000 /* virtio_net_config.status available*/
#define VIRTIO_NET_F_CTRL_VLAN 0x80000 /* Control channel VLAN filtering */ #define VIRTIO_NET_F_CTRL_VQ 0x020000 /* Control channel available */
#define VIRTIO_NET_F_CTRL_RX 0x040000 /* Control channel RX mode support */
#define VIRTIO_NET_F_CTRL_VLAN 0x080000 /* Control channel VLAN filtering */
#define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */ #define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */
#define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */ #define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */
#define VIRTIO_NET_F_MQ 0x400000 /* Device supports RFS */ #define VIRTIO_NET_F_MQ 0x400000 /* Device supports Receive Flow Steering */
#define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */ #define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */
#define VIRTIO_NET_F_SPEED_DUPLEX (1ULL << 63) /* Device set linkspeed and duplex */
#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */
struct virtio_net_config { struct virtio_net_config {
/* The config defining mac address (if VIRTIO_NET_F_MAC) */ /* The config defining mac address (if VIRTIO_NET_F_MAC) */
uint8_t mac[ETHER_ADDR_LEN]; uint8_t mac[ETHER_ADDR_LEN];
/* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
uint16_t status; uint16_t status;
/* Maximum number of each of transmit and receive queues; /* Maximum number of each of transmit and receive queues;
* see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ. * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ.
* Legal values are between 1 and 0x8000. * Legal values are between 1 and 0x8000.
*/ */
uint16_t max_virtqueue_pairs; uint16_t max_virtqueue_pairs;
/* Default maximum transmit unit advice */
uint16_t mtu;
/*
* speed, in units of 1Mb. All values 0 to INT_MAX are legal.
* Any other value stands for unknown.
*/
uint32_t speed;
/*
* 0x00 - half duplex
* 0x01 - full duplex
* Any other value stands for unknown.
*/
uint8_t duplex;
} __packed; } __packed;
/* /*
* This is the first element of the scatter-gather list. If you don't * This header comes first in the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header. * specify GSO or CSUM features, you can simply ignore the header.
*
* This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf,
* only flattened.
*/ */
struct virtio_net_hdr { struct virtio_net_hdr_v1 {
#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start,csum_offset*/ #define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ #define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */
uint8_t flags; uint8_t flags;
#define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */ #define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */
#define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */ #define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */
#define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */ #define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */
#define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */ #define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */
#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */ #define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */
uint8_t gso_type; uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */ uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */ uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */ uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */ uint16_t csum_offset; /* Offset after that to place checksum */
uint16_t num_buffers; /* Number of merged rx buffers */
}; };
/* /*
* This header comes first in the scatter-gather list.
* For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
* be the first element of the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header.
*/
struct virtio_net_hdr {
/* See VIRTIO_NET_HDR_F_* */
uint8_t flags;
/* See VIRTIO_NET_HDR_GSO_* */
uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */
};
/*
* This is the version of the header to use when the MRG_RXBUF * This is the version of the header to use when the MRG_RXBUF
* feature has been negotiated. * feature has been negotiated.
*/ */
struct virtio_net_hdr_mrg_rxbuf { struct virtio_net_hdr_mrg_rxbuf {
struct virtio_net_hdr hdr; struct virtio_net_hdr hdr;
uint16_t num_buffers; /* Number of merged rx buffers */ uint16_t num_buffers; /* Number of merged rx buffers */
}; };
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struct virtio_net_ctrl_mq { struct virtio_net_ctrl_mq {
uint16_t virtqueue_pairs; uint16_t virtqueue_pairs;
} __packed; } __packed;
#define VIRTIO_NET_CTRL_MQ 4 #define VIRTIO_NET_CTRL_MQ 4
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
/*
* Control network offloads
*
* Reconfigures the network offloads that Guest can handle.
*
* Available with the VIRTIO_NET_F_CTRL_GUEST_OFFLOADS feature bit.
*
* Command data format matches the feature bit mask exactly.
*
* See VIRTIO_NET_F_GUEST_* for the list of offloads
* that can be enabled/disabled.
*/
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS 5
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET 0
/* /*
* Use the checksum offset in the VirtIO header to set the * Use the checksum offset in the VirtIO header to set the
* correct CSUM_* flags. * correct CSUM_* flags.
*/ */
static inline int static inline int
virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start, virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start,
struct virtio_net_hdr *hdr) struct virtio_net_hdr *hdr)
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head/sys/amd64/amd64/genassym.c

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* *
* $FreeBSD$ * $FreeBSD$
*/ */
#ifndef _VIRTIO_NET_H #ifndef _VIRTIO_NET_H
#define _VIRTIO_NET_H #define _VIRTIO_NET_H
/* The feature bitmap for virtio net */ /* The feature bitmap for virtio net */
#define VIRTIO_NET_F_CSUM 0x00001 /* Host handles pkts w/ partial csum */ #define VIRTIO_NET_F_CSUM 0x000001 /* Host handles pkts w/ partial csum */
#define VIRTIO_NET_F_GUEST_CSUM 0x00002 /* Guest handles pkts w/ partial csum*/ #define VIRTIO_NET_F_GUEST_CSUM 0x000002 /* Guest handles pkts w/ partial csum*/
#define VIRTIO_NET_F_MAC 0x00020 /* Host has given MAC address. */ #define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 0x000004 /* Dynamic offload configuration. */
#define VIRTIO_NET_F_GSO 0x00040 /* Host handles pkts w/ any GSO type */ #define VIRTIO_NET_F_MTU 0x000008 /* Initial MTU advice */
#define VIRTIO_NET_F_GUEST_TSO4 0x00080 /* Guest can handle TSOv4 in. */ #define VIRTIO_NET_F_MAC 0x000020 /* Host has given MAC address. */
#define VIRTIO_NET_F_GUEST_TSO6 0x00100 /* Guest can handle TSOv6 in. */ #define VIRTIO_NET_F_GSO 0x000040 /* Host handles pkts w/ any GSO type */
#define VIRTIO_NET_F_GUEST_ECN 0x00200 /* Guest can handle TSO[6] w/ ECN in.*/ #define VIRTIO_NET_F_GUEST_TSO4 0x000080 /* Guest can handle TSOv4 in. */
#define VIRTIO_NET_F_GUEST_UFO 0x00400 /* Guest can handle UFO in. */ #define VIRTIO_NET_F_GUEST_TSO6 0x000100 /* Guest can handle TSOv6 in. */
#define VIRTIO_NET_F_HOST_TSO4 0x00800 /* Host can handle TSOv4 in. */ #define VIRTIO_NET_F_GUEST_ECN 0x000200 /* Guest can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_HOST_TSO6 0x01000 /* Host can handle TSOv6 in. */ #define VIRTIO_NET_F_GUEST_UFO 0x000400 /* Guest can handle UFO in. */
#define VIRTIO_NET_F_HOST_ECN 0x02000 /* Host can handle TSO[6] w/ ECN in. */ #define VIRTIO_NET_F_HOST_TSO4 0x000800 /* Host can handle TSOv4 in. */
#define VIRTIO_NET_F_HOST_UFO 0x04000 /* Host can handle UFO in. */ #define VIRTIO_NET_F_HOST_TSO6 0x001000 /* Host can handle TSOv6 in. */
#define VIRTIO_NET_F_MRG_RXBUF 0x08000 /* Host can merge receive buffers. */ #define VIRTIO_NET_F_HOST_ECN 0x002000 /* Host can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_STATUS 0x10000 /* virtio_net_config.status available*/ #define VIRTIO_NET_F_HOST_UFO 0x004000 /* Host can handle UFO in. */
#define VIRTIO_NET_F_CTRL_VQ 0x20000 /* Control channel available */ #define VIRTIO_NET_F_MRG_RXBUF 0x008000 /* Host can merge receive buffers. */
#define VIRTIO_NET_F_CTRL_RX 0x40000 /* Control channel RX mode support */ #define VIRTIO_NET_F_STATUS 0x010000 /* virtio_net_config.status available*/
#define VIRTIO_NET_F_CTRL_VLAN 0x80000 /* Control channel VLAN filtering */ #define VIRTIO_NET_F_CTRL_VQ 0x020000 /* Control channel available */
#define VIRTIO_NET_F_CTRL_RX 0x040000 /* Control channel RX mode support */
#define VIRTIO_NET_F_CTRL_VLAN 0x080000 /* Control channel VLAN filtering */
#define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */ #define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */
#define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */ #define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */
#define VIRTIO_NET_F_MQ 0x400000 /* Device supports RFS */ #define VIRTIO_NET_F_MQ 0x400000 /* Device supports Receive Flow Steering */
#define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */ #define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */
#define VIRTIO_NET_F_SPEED_DUPLEX (1ULL << 63) /* Device set linkspeed and duplex */
#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */
struct virtio_net_config { struct virtio_net_config {
/* The config defining mac address (if VIRTIO_NET_F_MAC) */ /* The config defining mac address (if VIRTIO_NET_F_MAC) */
uint8_t mac[ETHER_ADDR_LEN]; uint8_t mac[ETHER_ADDR_LEN];
/* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
uint16_t status; uint16_t status;
/* Maximum number of each of transmit and receive queues; /* Maximum number of each of transmit and receive queues;
* see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ. * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ.
* Legal values are between 1 and 0x8000. * Legal values are between 1 and 0x8000.
*/ */
uint16_t max_virtqueue_pairs; uint16_t max_virtqueue_pairs;
/* Default maximum transmit unit advice */
uint16_t mtu;
/*
* speed, in units of 1Mb. All values 0 to INT_MAX are legal.
* Any other value stands for unknown.
*/
uint32_t speed;
/*
* 0x00 - half duplex
* 0x01 - full duplex
* Any other value stands for unknown.
*/
uint8_t duplex;
} __packed; } __packed;
/* /*
* This is the first element of the scatter-gather list. If you don't * This header comes first in the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header. * specify GSO or CSUM features, you can simply ignore the header.
*
* This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf,
* only flattened.
*/ */
struct virtio_net_hdr { struct virtio_net_hdr_v1 {
#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start,csum_offset*/ #define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ #define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */
uint8_t flags; uint8_t flags;
#define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */ #define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */
#define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */ #define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */
#define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */ #define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */
#define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */ #define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */
#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */ #define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */
uint8_t gso_type; uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */ uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */ uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */ uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */ uint16_t csum_offset; /* Offset after that to place checksum */
uint16_t num_buffers; /* Number of merged rx buffers */
}; };
/* /*
* This header comes first in the scatter-gather list.
* For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
* be the first element of the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header.
*/
struct virtio_net_hdr {
/* See VIRTIO_NET_HDR_F_* */
uint8_t flags;
/* See VIRTIO_NET_HDR_GSO_* */
uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */
};
/*
* This is the version of the header to use when the MRG_RXBUF * This is the version of the header to use when the MRG_RXBUF
* feature has been negotiated. * feature has been negotiated.
*/ */
struct virtio_net_hdr_mrg_rxbuf { struct virtio_net_hdr_mrg_rxbuf {
struct virtio_net_hdr hdr; struct virtio_net_hdr hdr;
uint16_t num_buffers; /* Number of merged rx buffers */ uint16_t num_buffers; /* Number of merged rx buffers */
}; };
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struct virtio_net_ctrl_mq { struct virtio_net_ctrl_mq {
uint16_t virtqueue_pairs; uint16_t virtqueue_pairs;
} __packed; } __packed;
#define VIRTIO_NET_CTRL_MQ 4 #define VIRTIO_NET_CTRL_MQ 4
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
/*
* Control network offloads
*
* Reconfigures the network offloads that Guest can handle.
*
* Available with the VIRTIO_NET_F_CTRL_GUEST_OFFLOADS feature bit.
*
* Command data format matches the feature bit mask exactly.
*
* See VIRTIO_NET_F_GUEST_* for the list of offloads
* that can be enabled/disabled.
*/
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS 5
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET 0
/* /*
* Use the checksum offset in the VirtIO header to set the * Use the checksum offset in the VirtIO header to set the
* correct CSUM_* flags. * correct CSUM_* flags.
*/ */
static inline int static inline int
virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start, virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start,
struct virtio_net_hdr *hdr) struct virtio_net_hdr *hdr)
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head/sys/amd64/include/efi.h

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* *
* $FreeBSD$ * $FreeBSD$
*/ */
#ifndef _VIRTIO_NET_H #ifndef _VIRTIO_NET_H
#define _VIRTIO_NET_H #define _VIRTIO_NET_H
/* The feature bitmap for virtio net */ /* The feature bitmap for virtio net */
#define VIRTIO_NET_F_CSUM 0x00001 /* Host handles pkts w/ partial csum */ #define VIRTIO_NET_F_CSUM 0x000001 /* Host handles pkts w/ partial csum */
#define VIRTIO_NET_F_GUEST_CSUM 0x00002 /* Guest handles pkts w/ partial csum*/ #define VIRTIO_NET_F_GUEST_CSUM 0x000002 /* Guest handles pkts w/ partial csum*/
#define VIRTIO_NET_F_MAC 0x00020 /* Host has given MAC address. */ #define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 0x000004 /* Dynamic offload configuration. */
#define VIRTIO_NET_F_GSO 0x00040 /* Host handles pkts w/ any GSO type */ #define VIRTIO_NET_F_MTU 0x000008 /* Initial MTU advice */
#define VIRTIO_NET_F_GUEST_TSO4 0x00080 /* Guest can handle TSOv4 in. */ #define VIRTIO_NET_F_MAC 0x000020 /* Host has given MAC address. */
#define VIRTIO_NET_F_GUEST_TSO6 0x00100 /* Guest can handle TSOv6 in. */ #define VIRTIO_NET_F_GSO 0x000040 /* Host handles pkts w/ any GSO type */
#define VIRTIO_NET_F_GUEST_ECN 0x00200 /* Guest can handle TSO[6] w/ ECN in.*/ #define VIRTIO_NET_F_GUEST_TSO4 0x000080 /* Guest can handle TSOv4 in. */
#define VIRTIO_NET_F_GUEST_UFO 0x00400 /* Guest can handle UFO in. */ #define VIRTIO_NET_F_GUEST_TSO6 0x000100 /* Guest can handle TSOv6 in. */
#define VIRTIO_NET_F_HOST_TSO4 0x00800 /* Host can handle TSOv4 in. */ #define VIRTIO_NET_F_GUEST_ECN 0x000200 /* Guest can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_HOST_TSO6 0x01000 /* Host can handle TSOv6 in. */ #define VIRTIO_NET_F_GUEST_UFO 0x000400 /* Guest can handle UFO in. */
#define VIRTIO_NET_F_HOST_ECN 0x02000 /* Host can handle TSO[6] w/ ECN in. */ #define VIRTIO_NET_F_HOST_TSO4 0x000800 /* Host can handle TSOv4 in. */
#define VIRTIO_NET_F_HOST_UFO 0x04000 /* Host can handle UFO in. */ #define VIRTIO_NET_F_HOST_TSO6 0x001000 /* Host can handle TSOv6 in. */
#define VIRTIO_NET_F_MRG_RXBUF 0x08000 /* Host can merge receive buffers. */ #define VIRTIO_NET_F_HOST_ECN 0x002000 /* Host can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_STATUS 0x10000 /* virtio_net_config.status available*/ #define VIRTIO_NET_F_HOST_UFO 0x004000 /* Host can handle UFO in. */
#define VIRTIO_NET_F_CTRL_VQ 0x20000 /* Control channel available */ #define VIRTIO_NET_F_MRG_RXBUF 0x008000 /* Host can merge receive buffers. */
#define VIRTIO_NET_F_CTRL_RX 0x40000 /* Control channel RX mode support */ #define VIRTIO_NET_F_STATUS 0x010000 /* virtio_net_config.status available*/
#define VIRTIO_NET_F_CTRL_VLAN 0x80000 /* Control channel VLAN filtering */ #define VIRTIO_NET_F_CTRL_VQ 0x020000 /* Control channel available */
#define VIRTIO_NET_F_CTRL_RX 0x040000 /* Control channel RX mode support */
#define VIRTIO_NET_F_CTRL_VLAN 0x080000 /* Control channel VLAN filtering */
#define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */ #define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */
#define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */ #define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */
#define VIRTIO_NET_F_MQ 0x400000 /* Device supports RFS */ #define VIRTIO_NET_F_MQ 0x400000 /* Device supports Receive Flow Steering */
#define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */ #define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */
#define VIRTIO_NET_F_SPEED_DUPLEX (1ULL << 63) /* Device set linkspeed and duplex */
#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */
struct virtio_net_config { struct virtio_net_config {
/* The config defining mac address (if VIRTIO_NET_F_MAC) */ /* The config defining mac address (if VIRTIO_NET_F_MAC) */
uint8_t mac[ETHER_ADDR_LEN]; uint8_t mac[ETHER_ADDR_LEN];
/* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
uint16_t status; uint16_t status;
/* Maximum number of each of transmit and receive queues; /* Maximum number of each of transmit and receive queues;
* see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ. * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ.
* Legal values are between 1 and 0x8000. * Legal values are between 1 and 0x8000.
*/ */
uint16_t max_virtqueue_pairs; uint16_t max_virtqueue_pairs;
/* Default maximum transmit unit advice */
uint16_t mtu;
/*
* speed, in units of 1Mb. All values 0 to INT_MAX are legal.
* Any other value stands for unknown.
*/
uint32_t speed;
/*
* 0x00 - half duplex
* 0x01 - full duplex
* Any other value stands for unknown.
*/
uint8_t duplex;
} __packed; } __packed;
/* /*
* This is the first element of the scatter-gather list. If you don't * This header comes first in the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header. * specify GSO or CSUM features, you can simply ignore the header.
*
* This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf,
* only flattened.
*/ */
struct virtio_net_hdr { struct virtio_net_hdr_v1 {
#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start,csum_offset*/ #define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ #define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */
uint8_t flags; uint8_t flags;
#define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */ #define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */
#define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */ #define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */
#define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */ #define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */
#define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */ #define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */
#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */ #define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */
uint8_t gso_type; uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */ uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */ uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */ uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */ uint16_t csum_offset; /* Offset after that to place checksum */
uint16_t num_buffers; /* Number of merged rx buffers */
}; };
/* /*
* This header comes first in the scatter-gather list.
* For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
* be the first element of the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header.
*/
struct virtio_net_hdr {
/* See VIRTIO_NET_HDR_F_* */
uint8_t flags;
/* See VIRTIO_NET_HDR_GSO_* */
uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */
};
/*
* This is the version of the header to use when the MRG_RXBUF * This is the version of the header to use when the MRG_RXBUF
* feature has been negotiated. * feature has been negotiated.
*/ */
struct virtio_net_hdr_mrg_rxbuf { struct virtio_net_hdr_mrg_rxbuf {
struct virtio_net_hdr hdr; struct virtio_net_hdr hdr;
uint16_t num_buffers; /* Number of merged rx buffers */ uint16_t num_buffers; /* Number of merged rx buffers */
}; };
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struct virtio_net_ctrl_mq { struct virtio_net_ctrl_mq {
uint16_t virtqueue_pairs; uint16_t virtqueue_pairs;
} __packed; } __packed;
#define VIRTIO_NET_CTRL_MQ 4 #define VIRTIO_NET_CTRL_MQ 4
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
/*
* Control network offloads
*
* Reconfigures the network offloads that Guest can handle.
*
* Available with the VIRTIO_NET_F_CTRL_GUEST_OFFLOADS feature bit.
*
* Command data format matches the feature bit mask exactly.
*
* See VIRTIO_NET_F_GUEST_* for the list of offloads
* that can be enabled/disabled.
*/
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS 5
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET 0
/* /*
* Use the checksum offset in the VirtIO header to set the * Use the checksum offset in the VirtIO header to set the
* correct CSUM_* flags. * correct CSUM_* flags.
*/ */
static inline int static inline int
virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start, virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start,
struct virtio_net_hdr *hdr) struct virtio_net_hdr *hdr)
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head/sys/arm64/arm64/efirt_machdep.c

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* *
* $FreeBSD$ * $FreeBSD$
*/ */
#ifndef _VIRTIO_NET_H #ifndef _VIRTIO_NET_H
#define _VIRTIO_NET_H #define _VIRTIO_NET_H
/* The feature bitmap for virtio net */ /* The feature bitmap for virtio net */
#define VIRTIO_NET_F_CSUM 0x00001 /* Host handles pkts w/ partial csum */ #define VIRTIO_NET_F_CSUM 0x000001 /* Host handles pkts w/ partial csum */
#define VIRTIO_NET_F_GUEST_CSUM 0x00002 /* Guest handles pkts w/ partial csum*/ #define VIRTIO_NET_F_GUEST_CSUM 0x000002 /* Guest handles pkts w/ partial csum*/
#define VIRTIO_NET_F_MAC 0x00020 /* Host has given MAC address. */ #define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 0x000004 /* Dynamic offload configuration. */
#define VIRTIO_NET_F_GSO 0x00040 /* Host handles pkts w/ any GSO type */ #define VIRTIO_NET_F_MTU 0x000008 /* Initial MTU advice */
#define VIRTIO_NET_F_GUEST_TSO4 0x00080 /* Guest can handle TSOv4 in. */ #define VIRTIO_NET_F_MAC 0x000020 /* Host has given MAC address. */
#define VIRTIO_NET_F_GUEST_TSO6 0x00100 /* Guest can handle TSOv6 in. */ #define VIRTIO_NET_F_GSO 0x000040 /* Host handles pkts w/ any GSO type */
#define VIRTIO_NET_F_GUEST_ECN 0x00200 /* Guest can handle TSO[6] w/ ECN in.*/ #define VIRTIO_NET_F_GUEST_TSO4 0x000080 /* Guest can handle TSOv4 in. */
#define VIRTIO_NET_F_GUEST_UFO 0x00400 /* Guest can handle UFO in. */ #define VIRTIO_NET_F_GUEST_TSO6 0x000100 /* Guest can handle TSOv6 in. */
#define VIRTIO_NET_F_HOST_TSO4 0x00800 /* Host can handle TSOv4 in. */ #define VIRTIO_NET_F_GUEST_ECN 0x000200 /* Guest can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_HOST_TSO6 0x01000 /* Host can handle TSOv6 in. */ #define VIRTIO_NET_F_GUEST_UFO 0x000400 /* Guest can handle UFO in. */
#define VIRTIO_NET_F_HOST_ECN 0x02000 /* Host can handle TSO[6] w/ ECN in. */ #define VIRTIO_NET_F_HOST_TSO4 0x000800 /* Host can handle TSOv4 in. */
#define VIRTIO_NET_F_HOST_UFO 0x04000 /* Host can handle UFO in. */ #define VIRTIO_NET_F_HOST_TSO6 0x001000 /* Host can handle TSOv6 in. */
#define VIRTIO_NET_F_MRG_RXBUF 0x08000 /* Host can merge receive buffers. */ #define VIRTIO_NET_F_HOST_ECN 0x002000 /* Host can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_STATUS 0x10000 /* virtio_net_config.status available*/ #define VIRTIO_NET_F_HOST_UFO 0x004000 /* Host can handle UFO in. */
#define VIRTIO_NET_F_CTRL_VQ 0x20000 /* Control channel available */ #define VIRTIO_NET_F_MRG_RXBUF 0x008000 /* Host can merge receive buffers. */
#define VIRTIO_NET_F_CTRL_RX 0x40000 /* Control channel RX mode support */ #define VIRTIO_NET_F_STATUS 0x010000 /* virtio_net_config.status available*/
#define VIRTIO_NET_F_CTRL_VLAN 0x80000 /* Control channel VLAN filtering */ #define VIRTIO_NET_F_CTRL_VQ 0x020000 /* Control channel available */
#define VIRTIO_NET_F_CTRL_RX 0x040000 /* Control channel RX mode support */
#define VIRTIO_NET_F_CTRL_VLAN 0x080000 /* Control channel VLAN filtering */
#define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */ #define VIRTIO_NET_F_CTRL_RX_EXTRA 0x100000 /* Extra RX mode control support */
#define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */ #define VIRTIO_NET_F_GUEST_ANNOUNCE 0x200000 /* Announce device on network */
#define VIRTIO_NET_F_MQ 0x400000 /* Device supports RFS */ #define VIRTIO_NET_F_MQ 0x400000 /* Device supports Receive Flow Steering */
#define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */ #define VIRTIO_NET_F_CTRL_MAC_ADDR 0x800000 /* Set MAC address */
#define VIRTIO_NET_F_SPEED_DUPLEX (1ULL << 63) /* Device set linkspeed and duplex */
#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */
struct virtio_net_config { struct virtio_net_config {
/* The config defining mac address (if VIRTIO_NET_F_MAC) */ /* The config defining mac address (if VIRTIO_NET_F_MAC) */
uint8_t mac[ETHER_ADDR_LEN]; uint8_t mac[ETHER_ADDR_LEN];
/* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
uint16_t status; uint16_t status;
/* Maximum number of each of transmit and receive queues; /* Maximum number of each of transmit and receive queues;
* see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ. * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ.
* Legal values are between 1 and 0x8000. * Legal values are between 1 and 0x8000.
*/ */
uint16_t max_virtqueue_pairs; uint16_t max_virtqueue_pairs;
/* Default maximum transmit unit advice */
uint16_t mtu;
/*
* speed, in units of 1Mb. All values 0 to INT_MAX are legal.
* Any other value stands for unknown.
*/
uint32_t speed;
/*
* 0x00 - half duplex
* 0x01 - full duplex
* Any other value stands for unknown.
*/
uint8_t duplex;
} __packed; } __packed;
/* /*
* This is the first element of the scatter-gather list. If you don't * This header comes first in the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header. * specify GSO or CSUM features, you can simply ignore the header.
*
* This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf,
* only flattened.
*/ */
struct virtio_net_hdr { struct virtio_net_hdr_v1 {
#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start,csum_offset*/ #define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ #define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */
uint8_t flags; uint8_t flags;
#define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */ #define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */
#define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */ #define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */
#define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */ #define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */
#define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */ #define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */
#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */ #define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */
uint8_t gso_type; uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */ uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */ uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */ uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */ uint16_t csum_offset; /* Offset after that to place checksum */
uint16_t num_buffers; /* Number of merged rx buffers */
}; };
/* /*
* This header comes first in the scatter-gather list.
* For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
* be the first element of the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header.
*/
struct virtio_net_hdr {
/* See VIRTIO_NET_HDR_F_* */
uint8_t flags;
/* See VIRTIO_NET_HDR_GSO_* */
uint8_t gso_type;
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */
uint16_t csum_offset; /* Offset after that to place checksum */
};
/*
* This is the version of the header to use when the MRG_RXBUF * This is the version of the header to use when the MRG_RXBUF
* feature has been negotiated. * feature has been negotiated.
*/ */
struct virtio_net_hdr_mrg_rxbuf { struct virtio_net_hdr_mrg_rxbuf {
struct virtio_net_hdr hdr; struct virtio_net_hdr hdr;
uint16_t num_buffers; /* Number of merged rx buffers */ uint16_t num_buffers; /* Number of merged rx buffers */
}; };
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struct virtio_net_ctrl_mq { struct virtio_net_ctrl_mq {
uint16_t virtqueue_pairs; uint16_t virtqueue_pairs;
} __packed; } __packed;
#define VIRTIO_NET_CTRL_MQ 4 #define VIRTIO_NET_CTRL_MQ 4
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET 0
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000 #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
/*
* Control network offloads
*
* Reconfigures the network offloads that Guest can handle.
*
* Available with the VIRTIO_NET_F_CTRL_GUEST_OFFLOADS feature bit.
*
* Command data format matches the feature bit mask exactly.
*
* See VIRTIO_NET_F_GUEST_* for the list of offloads
* that can be enabled/disabled.
*/
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS 5
#define VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET 0
/* /*
* Use the checksum offset in the VirtIO header to set the * Use the checksum offset in the VirtIO header to set the
* correct CSUM_* flags. * correct CSUM_* flags.
*/ */
static inline int static inline int
virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start, virtio_net_rx_csum_by_offset(struct mbuf *m, uint16_t eth_type, int ip_start,
struct virtio_net_hdr *hdr) struct virtio_net_hdr *hdr)
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head/sys/arm64/include/efi.h

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head/sys/conf/files.amd64

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head/sys/dev/efidev/efirt.c

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head/sys/modules/efirt/Makefile

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head/sys/sys/efi.h

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