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virtio-net: implement RSS configuration command

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Optionally report RSS feature.
Handle RSS configuration command and keep RSS parameters
in virtio-net device context.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Yuri Benditovich 2020-05-08 15:59:28 +03:00 • committed by Jason Wang
parent 3f429a3400
commit 590790297c
3 changed files with 175 additions and 10 deletions
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13
include/hw/virtio/virtio-net.h
View file

@ -126,6 +126,18 @@ typedef struct VirtioNetRscChain {
/* Maximum packet size we can receive from tap device: header + 64k */
#define VIRTIO_NET_MAX_BUFSIZE (sizeof(struct virtio_net_hdr) + (64 * KiB))
#define VIRTIO_NET_RSS_MAX_KEY_SIZE 40
#define VIRTIO_NET_RSS_MAX_TABLE_LEN 128
typedef struct VirtioNetRssData {
bool enabled;
uint32_t hash_types;
uint8_t key[VIRTIO_NET_RSS_MAX_KEY_SIZE];
uint16_t indirections_len;
uint16_t *indirections_table;
uint16_t default_queue;
} VirtioNetRssData;
typedef struct VirtIONetQueue {
VirtQueue *rx_vq;
VirtQueue *tx_vq;
@ -199,6 +211,7 @@ struct VirtIONet {
bool failover;
DeviceListener primary_listener;
Notifier migration_state;
VirtioNetRssData rss_data;
};
void virtio_net_set_netclient_name(VirtIONet *n, const char *name,