virtio-net: Introduce hash report feature (3024e209) · Commits · 戴 / test

include/uapi/linux/virtio_net.h

+36 −0

Original line number	Diff line number	Diff line
		@@ -57,6 +57,7 @@
		* Steering */
		#define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */

		#define VIRTIO_NET_F_HASH_REPORT 57 /* Supports hash report */
		#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
		@@ -156,6 +157,23 @@ struct virtio_net_hdr_v1 {
		__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
		@@ -304,6 +322,24 @@ struct virtio_net_rss_config {

		#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
		*

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