diff options
Diffstat (limited to 'qemu/include/standard-headers/linux/virtio_net.h')
-rw-r--r-- | qemu/include/standard-headers/linux/virtio_net.h | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/qemu/include/standard-headers/linux/virtio_net.h b/qemu/include/standard-headers/linux/virtio_net.h deleted file mode 100644 index a78f33e77..000000000 --- a/qemu/include/standard-headers/linux/virtio_net.h +++ /dev/null @@ -1,245 +0,0 @@ -#ifndef _LINUX_VIRTIO_NET_H -#define _LINUX_VIRTIO_NET_H -/* This header is BSD licensed so anyone can use the definitions to implement - * compatible drivers/servers. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of IBM nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. */ -#include "standard-headers/linux/types.h" -#include "standard-headers/linux/virtio_ids.h" -#include "standard-headers/linux/virtio_config.h" -#include "standard-headers/linux/virtio_types.h" -#include "standard-headers/linux/if_ether.h" - -/* The feature bitmap for virtio net */ -#define VIRTIO_NET_F_CSUM 0 /* Host handles pkts w/ partial csum */ -#define VIRTIO_NET_F_GUEST_CSUM 1 /* Guest handles pkts w/ partial csum */ -#define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 2 /* Dynamic offload configuration. */ -#define VIRTIO_NET_F_MAC 5 /* Host has given MAC address. */ -#define VIRTIO_NET_F_GUEST_TSO4 7 /* Guest can handle TSOv4 in. */ -#define VIRTIO_NET_F_GUEST_TSO6 8 /* Guest can handle TSOv6 in. */ -#define VIRTIO_NET_F_GUEST_ECN 9 /* Guest can handle TSO[6] w/ ECN in. */ -#define VIRTIO_NET_F_GUEST_UFO 10 /* Guest can handle UFO in. */ -#define VIRTIO_NET_F_HOST_TSO4 11 /* Host can handle TSOv4 in. */ -#define VIRTIO_NET_F_HOST_TSO6 12 /* Host can handle TSOv6 in. */ -#define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */ -#define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */ -#define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */ -#define VIRTIO_NET_F_STATUS 16 /* virtio_net_config.status available */ -#define VIRTIO_NET_F_CTRL_VQ 17 /* Control channel available */ -#define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */ -#define VIRTIO_NET_F_CTRL_VLAN 19 /* Control channel VLAN filtering */ -#define VIRTIO_NET_F_CTRL_RX_EXTRA 20 /* Extra RX mode control support */ -#define VIRTIO_NET_F_GUEST_ANNOUNCE 21 /* Guest can announce device on the - * network */ -#define VIRTIO_NET_F_MQ 22 /* Device supports Receive Flow - * Steering */ -#define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */ - -#ifndef VIRTIO_NET_NO_LEGACY -#define VIRTIO_NET_F_GSO 6 /* Host handles pkts w/ any GSO type */ -#endif /* VIRTIO_NET_NO_LEGACY */ - -#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ -#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */ - -struct virtio_net_config { - /* The config defining mac address (if VIRTIO_NET_F_MAC) */ - uint8_t mac[ETH_ALEN]; - /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ - uint16_t status; - /* Maximum number of each of transmit and receive queues; - * see VIRTIO_NET_F_MQ and VIRTIO_NET_CTRL_MQ. - * Legal values are between 1 and 0x8000 - */ - uint16_t max_virtqueue_pairs; -} QEMU_PACKED; - -/* - * This header comes first in the scatter-gather list. If you don't - * 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_v1 { -#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */ -#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ - uint8_t flags; -#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_UDP 3 /* GSO frame, IPv4 UDP (UFO) */ -#define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */ -#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */ - uint8_t gso_type; - __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */ - __virtio16 gso_size; /* Bytes to append to hdr_len per frame */ - __virtio16 csum_start; /* Position to start checksumming from */ - __virtio16 csum_offset; /* Offset after that to place checksum */ - __virtio16 num_buffers; /* Number of merged rx buffers */ -}; - -#ifndef VIRTIO_NET_NO_LEGACY -/* 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; - __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */ - __virtio16 gso_size; /* Bytes to append to hdr_len per frame */ - __virtio16 csum_start; /* Position to start checksumming from */ - __virtio16 csum_offset; /* Offset after that to place checksum */ -}; - -/* This is the version of the header to use when the MRG_RXBUF - * feature has been negotiated. */ -struct virtio_net_hdr_mrg_rxbuf { - struct virtio_net_hdr hdr; - __virtio16 num_buffers; /* Number of merged rx buffers */ -}; -#endif /* ...VIRTIO_NET_NO_LEGACY */ - -/* - * Control virtqueue data structures - * - * The control virtqueue expects a header in the first sg entry - * and an ack/status response in the last entry. Data for the - * command goes in between. - */ -struct virtio_net_ctrl_hdr { - uint8_t class; - uint8_t cmd; -} QEMU_PACKED; - -typedef uint8_t virtio_net_ctrl_ack; - -#define VIRTIO_NET_OK 0 -#define VIRTIO_NET_ERR 1 - -/* - * Control the RX mode, ie. promisucous, allmulti, etc... - * All commands require an "out" sg entry containing a 1 byte - * state value, zero = disable, non-zero = enable. Commands - * 0 and 1 are supported with the VIRTIO_NET_F_CTRL_RX feature. - * Commands 2-5 are added with VIRTIO_NET_F_CTRL_RX_EXTRA. - */ -#define VIRTIO_NET_CTRL_RX 0 - #define VIRTIO_NET_CTRL_RX_PROMISC 0 - #define VIRTIO_NET_CTRL_RX_ALLMULTI 1 - #define VIRTIO_NET_CTRL_RX_ALLUNI 2 - #define VIRTIO_NET_CTRL_RX_NOMULTI 3 - #define VIRTIO_NET_CTRL_RX_NOUNI 4 - #define VIRTIO_NET_CTRL_RX_NOBCAST 5 - -/* - * Control the MAC - * - * The MAC filter table is managed by the hypervisor, the guest should - * assume the size is infinite. Filtering should be considered - * non-perfect, ie. based on hypervisor resources, the guest may - * received packets from sources not specified in the filter list. - * - * In addition to the class/cmd header, the TABLE_SET command requires - * two out scatterlists. Each contains a 4 byte count of entries followed - * by a concatenated byte stream of the ETH_ALEN MAC addresses. The - * first sg list contains unicast addresses, the second is for multicast. - * This functionality is present if the VIRTIO_NET_F_CTRL_RX feature - * is available. - * - * The ADDR_SET command requests one out scatterlist, it contains a - * 6 bytes MAC address. This functionality is present if the - * VIRTIO_NET_F_CTRL_MAC_ADDR feature is available. - */ -struct virtio_net_ctrl_mac { - __virtio32 entries; - uint8_t macs[][ETH_ALEN]; -} QEMU_PACKED; - -#define VIRTIO_NET_CTRL_MAC 1 - #define VIRTIO_NET_CTRL_MAC_TABLE_SET 0 - #define VIRTIO_NET_CTRL_MAC_ADDR_SET 1 - -/* - * Control VLAN filtering - * - * The VLAN filter table is controlled via a simple ADD/DEL interface. - * VLAN IDs not added may be filterd by the hypervisor. Del is the - * opposite of add. Both commands expect an out entry containing a 2 - * byte VLAN ID. VLAN filterting is available with the - * VIRTIO_NET_F_CTRL_VLAN feature bit. - */ -#define VIRTIO_NET_CTRL_VLAN 2 - #define VIRTIO_NET_CTRL_VLAN_ADD 0 - #define VIRTIO_NET_CTRL_VLAN_DEL 1 - -/* - * Control link announce acknowledgement - * - * The command VIRTIO_NET_CTRL_ANNOUNCE_ACK is used to indicate that - * driver has recevied the notification; device would clear the - * VIRTIO_NET_S_ANNOUNCE bit in the status field after it receives - * this command. - */ -#define VIRTIO_NET_CTRL_ANNOUNCE 3 - #define VIRTIO_NET_CTRL_ANNOUNCE_ACK 0 - -/* - * Control Receive Flow Steering - * - * The command VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET - * enables Receive Flow Steering, specifying the number of the transmit and - * receive queues that will be used. After the command is consumed and acked by - * the device, the device will not steer new packets on receive virtqueues - * other than specified nor read from transmit virtqueues other than specified. - * Accordingly, driver should not transmit new packets on virtqueues other than - * specified. - */ -struct virtio_net_ctrl_mq { - __virtio16 virtqueue_pairs; -}; - -#define VIRTIO_NET_CTRL_MQ 4 - #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_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 - -#endif /* _LINUX_VIRTIO_NET_H */ |