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authornkozlovskiy <nmk@ydb.tech>2023-10-11 19:11:46 +0300
committernkozlovskiy <nmk@ydb.tech>2023-10-11 19:33:28 +0300
commit61b3971447e473726d6cdb23fc298e457b4d973c (patch)
treee2a2a864bb7717f7ae6138f6a3194a254dd2c7bb /contrib/libs/linux-headers/linux/virtio_net.h
parenta674dc57d88d43c2e8e90a6084d5d2c988e0402c (diff)
downloadydb-61b3971447e473726d6cdb23fc298e457b4d973c.tar.gz
add sanitizers dependencies
Diffstat (limited to 'contrib/libs/linux-headers/linux/virtio_net.h')
-rw-r--r--contrib/libs/linux-headers/linux/virtio_net.h395
1 files changed, 395 insertions, 0 deletions
diff --git a/contrib/libs/linux-headers/linux/virtio_net.h b/contrib/libs/linux-headers/linux/virtio_net.h
new file mode 100644
index 0000000000..8b9bc4fdc1
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+++ b/contrib/libs/linux-headers/linux/virtio_net.h
@@ -0,0 +1,395 @@
+#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 <linux/types.h>
+#include <linux/virtio_ids.h>
+#include <linux/virtio_config.h>
+#include <linux/virtio_types.h>
+#include <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_MTU 3 /* Initial MTU advice */
+#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 */
+#define VIRTIO_NET_F_NOTF_COAL 53 /* Device supports notifications coalescing */
+#define VIRTIO_NET_F_GUEST_USO4 54 /* Guest can handle USOv4 in. */
+#define VIRTIO_NET_F_GUEST_USO6 55 /* Guest can handle USOv6 in. */
+#define VIRTIO_NET_F_HOST_USO 56 /* Host can handle USO in. */
+#define VIRTIO_NET_F_HASH_REPORT 57 /* Supports hash report */
+#define VIRTIO_NET_F_GUEST_HDRLEN 59 /* Guest provides the exact hdr_len value. */
+#define VIRTIO_NET_F_RSS 60 /* Supports RSS RX steering */
+#define VIRTIO_NET_F_RSC_EXT 61 /* extended coalescing info */
+#define VIRTIO_NET_F_STANDBY 62 /* Act as standby for another device
+ * with the same MAC.
+ */
+#define VIRTIO_NET_F_SPEED_DUPLEX 63 /* Device set linkspeed and duplex */
+
+#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 */
+
+/* supported/enabled hash types */
+#define VIRTIO_NET_RSS_HASH_TYPE_IPv4 (1 << 0)
+#define VIRTIO_NET_RSS_HASH_TYPE_TCPv4 (1 << 1)
+#define VIRTIO_NET_RSS_HASH_TYPE_UDPv4 (1 << 2)
+#define VIRTIO_NET_RSS_HASH_TYPE_IPv6 (1 << 3)
+#define VIRTIO_NET_RSS_HASH_TYPE_TCPv6 (1 << 4)
+#define VIRTIO_NET_RSS_HASH_TYPE_UDPv6 (1 << 5)
+#define VIRTIO_NET_RSS_HASH_TYPE_IP_EX (1 << 6)
+#define VIRTIO_NET_RSS_HASH_TYPE_TCP_EX (1 << 7)
+#define VIRTIO_NET_RSS_HASH_TYPE_UDP_EX (1 << 8)
+
+struct virtio_net_config {
+ /* The config defining mac address (if VIRTIO_NET_F_MAC) */
+ __u8 mac[ETH_ALEN];
+ /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
+ __virtio16 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
+ */
+ __virtio16 max_virtqueue_pairs;
+ /* Default maximum transmit unit advice */
+ __virtio16 mtu;
+ /*
+ * speed, in units of 1Mb. All values 0 to INT_MAX are legal.
+ * Any other value stands for unknown.
+ */
+ __le32 speed;
+ /*
+ * 0x00 - half duplex
+ * 0x01 - full duplex
+ * Any other value stands for unknown.
+ */
+ __u8 duplex;
+ /* maximum size of RSS key */
+ __u8 rss_max_key_size;
+ /* maximum number of indirection table entries */
+ __le16 rss_max_indirection_table_length;
+ /* bitmask of supported VIRTIO_NET_RSS_HASH_ types */
+ __le32 supported_hash_types;
+} __attribute__((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 */
+#define VIRTIO_NET_HDR_F_RSC_INFO 4 /* rsc info in csum_ fields */
+ __u8 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_UDP_L4 5 /* GSO frame, IPv4& IPv6 UDP (USO) */
+#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */
+ __u8 gso_type;
+ __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
+ __virtio16 gso_size; /* Bytes to append to hdr_len per frame */
+ union {
+ struct {
+ __virtio16 csum_start;
+ __virtio16 csum_offset;
+ };
+ /* Checksum calculation */
+ struct {
+ /* Position to start checksumming from */
+ __virtio16 start;
+ /* Offset after that to place checksum */
+ __virtio16 offset;
+ } csum;
+ /* Receive Segment Coalescing */
+ struct {
+ /* Number of coalesced segments */
+ __le16 segments;
+ /* Number of duplicated acks */
+ __le16 dup_acks;
+ } rsc;
+ };
+ __virtio16 num_buffers; /* Number of merged rx buffers */
+};
+
+struct virtio_net_hdr_v1_hash {
+ struct virtio_net_hdr_v1 hdr;
+ __le32 hash_value;
+#define VIRTIO_NET_HASH_REPORT_NONE 0
+#define VIRTIO_NET_HASH_REPORT_IPv4 1
+#define VIRTIO_NET_HASH_REPORT_TCPv4 2
+#define VIRTIO_NET_HASH_REPORT_UDPv4 3
+#define VIRTIO_NET_HASH_REPORT_IPv6 4
+#define VIRTIO_NET_HASH_REPORT_TCPv6 5
+#define VIRTIO_NET_HASH_REPORT_UDPv6 6
+#define VIRTIO_NET_HASH_REPORT_IPv6_EX 7
+#define VIRTIO_NET_HASH_REPORT_TCPv6_EX 8
+#define VIRTIO_NET_HASH_REPORT_UDPv6_EX 9
+ __le16 hash_report;
+ __le16 padding;
+};
+
+#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_* */
+ __u8 flags;
+ /* See VIRTIO_NET_HDR_GSO_* */
+ __u8 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 {
+ __u8 class;
+ __u8 cmd;
+} __attribute__((packed));
+
+typedef __u8 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;
+ __u8 macs[][ETH_ALEN];
+} __attribute__((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
+ */
+#define VIRTIO_NET_CTRL_MQ 4
+/*
+ * 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_VQ_PAIRS_SET 0
+ #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
+ #define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
+
+/*
+ * The command VIRTIO_NET_CTRL_MQ_RSS_CONFIG has the same effect as
+ * VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET does and additionally configures
+ * the receive steering to use a hash calculated for incoming packet
+ * to decide on receive virtqueue to place the packet. The command
+ * also provides parameters to calculate a hash and receive virtqueue.
+ */
+struct virtio_net_rss_config {
+ __le32 hash_types;
+ __le16 indirection_table_mask;
+ __le16 unclassified_queue;
+ __le16 indirection_table[1/* + indirection_table_mask */];
+ __le16 max_tx_vq;
+ __u8 hash_key_length;
+ __u8 hash_key_data[/* hash_key_length */];
+};
+
+ #define VIRTIO_NET_CTRL_MQ_RSS_CONFIG 1
+
+/*
+ * The command VIRTIO_NET_CTRL_MQ_HASH_CONFIG requests the device
+ * to include in the virtio header of the packet the value of the
+ * calculated hash and the report type of hash. It also provides
+ * parameters for hash calculation. The command requires feature
+ * VIRTIO_NET_F_HASH_REPORT to be negotiated to extend the
+ * layout of virtio header as defined in virtio_net_hdr_v1_hash.
+ */
+struct virtio_net_hash_config {
+ __le32 hash_types;
+ /* for compatibility with virtio_net_rss_config */
+ __le16 reserved[4];
+ __u8 hash_key_length;
+ __u8 hash_key_data[/* hash_key_length */];
+};
+
+ #define VIRTIO_NET_CTRL_MQ_HASH_CONFIG 2
+
+/*
+ * 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
+
+/*
+ * Control notifications coalescing.
+ *
+ * Request the device to change the notifications coalescing parameters.
+ *
+ * Available with the VIRTIO_NET_F_NOTF_COAL feature bit.
+ */
+#define VIRTIO_NET_CTRL_NOTF_COAL 6
+/*
+ * Set the tx-usecs/tx-max-packets parameters.
+ */
+struct virtio_net_ctrl_coal_tx {
+ /* Maximum number of packets to send before a TX notification */
+ __le32 tx_max_packets;
+ /* Maximum number of usecs to delay a TX notification */
+ __le32 tx_usecs;
+};
+
+#define VIRTIO_NET_CTRL_NOTF_COAL_TX_SET 0
+
+/*
+ * Set the rx-usecs/rx-max-packets parameters.
+ */
+struct virtio_net_ctrl_coal_rx {
+ /* Maximum number of packets to receive before a RX notification */
+ __le32 rx_max_packets;
+ /* Maximum number of usecs to delay a RX notification */
+ __le32 rx_usecs;
+};
+
+#define VIRTIO_NET_CTRL_NOTF_COAL_RX_SET 1
+
+#endif /* _LINUX_VIRTIO_NET_H */