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Diffstat (limited to 'hw/virtio-net.h')
| -rw-r--r-- | hw/virtio-net.h | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/hw/virtio-net.h b/hw/virtio-net.h deleted file mode 100644 index 4d1a8cdca0..0000000000 --- a/hw/virtio-net.h +++ /dev/null @@ -1,246 +0,0 @@ -/* - * Virtio Network Device - * - * Copyright IBM, Corp. 2007 - * - * Authors: - * Anthony Liguori <aliguori@us.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - */ - -#ifndef _QEMU_VIRTIO_NET_H -#define _QEMU_VIRTIO_NET_H - -#include "hw/virtio.h" -#include "hw/pci/pci.h" - -#define ETH_ALEN 6 - -/* from Linux's virtio_net.h */ - -/* The ID for virtio_net */ -#define VIRTIO_ID_NET 1 - -/* 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_MAC 5 /* Host has given MAC address. */ -#define VIRTIO_NET_F_GSO 6 /* Host handles pkts w/ any GSO type */ -#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_MQ 22 /* Device supports Receive Flow - * Steering */ - -#define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */ - -#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ - -#define TX_TIMER_INTERVAL 150000 /* 150 us */ - -/* Limit the number of packets that can be sent via a single flush - * of the TX queue. This gives us a guaranteed exit condition and - * ensures fairness in the io path. 256 conveniently matches the - * length of the TX queue and shows a good balance of performance - * and latency. */ -#define TX_BURST 256 - -typedef struct virtio_net_conf -{ - uint32_t txtimer; - int32_t txburst; - char *tx; -} virtio_net_conf; - -/* Maximum packet size we can receive from tap device: header + 64k */ -#define VIRTIO_NET_MAX_BUFSIZE (sizeof(struct virtio_net_hdr) + (64 << 10)) - -struct virtio_net_config -{ - /* The config defining mac address ($ETH_ALEN bytes) */ - uint8_t mac[ETH_ALEN]; - /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ - uint16_t status; - /* Max virtqueue pairs supported by the device */ - uint16_t max_virtqueue_pairs; -} QEMU_PACKED; - -/* - * 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; -}; - -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 { - uint32_t entries; - uint8_t macs[][ETH_ALEN]; -}; - -typedef struct VirtIONetQueue { - VirtQueue *rx_vq; - VirtQueue *tx_vq; - QEMUTimer *tx_timer; - QEMUBH *tx_bh; - int tx_waiting; - struct { - VirtQueueElement elem; - ssize_t len; - } async_tx; - struct VirtIONet *n; -} VirtIONetQueue; - -typedef struct VirtIONet { - VirtIODevice vdev; - uint8_t mac[ETH_ALEN]; - uint16_t status; - VirtIONetQueue *vqs; - VirtQueue *ctrl_vq; - NICState *nic; - uint32_t tx_timeout; - int32_t tx_burst; - uint32_t has_vnet_hdr; - size_t host_hdr_len; - size_t guest_hdr_len; - uint8_t has_ufo; - int mergeable_rx_bufs; - uint8_t promisc; - uint8_t allmulti; - uint8_t alluni; - uint8_t nomulti; - uint8_t nouni; - uint8_t nobcast; - uint8_t vhost_started; - struct { - int in_use; - int first_multi; - uint8_t multi_overflow; - uint8_t uni_overflow; - uint8_t *macs; - } mac_table; - uint32_t *vlans; - DeviceState *qdev; - int multiqueue; - uint16_t max_queues; - uint16_t curr_queues; - size_t config_size; -} VirtIONet; - -#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 Multiqueue - * - * The command VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET - * enables multiqueue, 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 { - uint16_t 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 - -#define DEFINE_VIRTIO_NET_FEATURES(_state, _field) \ - DEFINE_VIRTIO_COMMON_FEATURES(_state, _field), \ - DEFINE_PROP_BIT("csum", _state, _field, VIRTIO_NET_F_CSUM, true), \ - DEFINE_PROP_BIT("guest_csum", _state, _field, VIRTIO_NET_F_GUEST_CSUM, true), \ - DEFINE_PROP_BIT("gso", _state, _field, VIRTIO_NET_F_GSO, true), \ - DEFINE_PROP_BIT("guest_tso4", _state, _field, VIRTIO_NET_F_GUEST_TSO4, true), \ - DEFINE_PROP_BIT("guest_tso6", _state, _field, VIRTIO_NET_F_GUEST_TSO6, true), \ - DEFINE_PROP_BIT("guest_ecn", _state, _field, VIRTIO_NET_F_GUEST_ECN, true), \ - DEFINE_PROP_BIT("guest_ufo", _state, _field, VIRTIO_NET_F_GUEST_UFO, true), \ - DEFINE_PROP_BIT("host_tso4", _state, _field, VIRTIO_NET_F_HOST_TSO4, true), \ - DEFINE_PROP_BIT("host_tso6", _state, _field, VIRTIO_NET_F_HOST_TSO6, true), \ - DEFINE_PROP_BIT("host_ecn", _state, _field, VIRTIO_NET_F_HOST_ECN, true), \ - DEFINE_PROP_BIT("host_ufo", _state, _field, VIRTIO_NET_F_HOST_UFO, true), \ - DEFINE_PROP_BIT("mrg_rxbuf", _state, _field, VIRTIO_NET_F_MRG_RXBUF, true), \ - DEFINE_PROP_BIT("status", _state, _field, VIRTIO_NET_F_STATUS, true), \ - DEFINE_PROP_BIT("ctrl_vq", _state, _field, VIRTIO_NET_F_CTRL_VQ, true), \ - DEFINE_PROP_BIT("ctrl_rx", _state, _field, VIRTIO_NET_F_CTRL_RX, true), \ - DEFINE_PROP_BIT("ctrl_vlan", _state, _field, VIRTIO_NET_F_CTRL_VLAN, true), \ - DEFINE_PROP_BIT("ctrl_rx_extra", _state, _field, VIRTIO_NET_F_CTRL_RX_EXTRA, true), \ - DEFINE_PROP_BIT("ctrl_mac_addr", _state, _field, VIRTIO_NET_F_CTRL_MAC_ADDR, true), \ - DEFINE_PROP_BIT("mq", _state, _field, VIRTIO_NET_F_MQ, false) - -#endif |