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[PATCH v7 7/7] virtio-net: add migration support for RSS and hash report
From: |
Yuri Benditovich |
Subject: |
[PATCH v7 7/7] virtio-net: add migration support for RSS and hash report |
Date: |
Sun, 29 Mar 2020 18:09:53 +0300 |
Save and restore RSS/hash report configuration.
Signed-off-by: Yuri Benditovich <address@hidden>
---
hw/net/virtio-net.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 61c956d0ff..8e09aa0b99 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -2842,6 +2842,13 @@ static int virtio_net_post_load_device(void *opaque, int
version_id)
}
}
+ if (n->rss_data.enabled) {
+ trace_virtio_net_rss_enable(n->rss_data.hash_types,
+ n->rss_data.indirections_len,
+ sizeof(n->rss_data.key));
+ } else {
+ trace_virtio_net_rss_disable();
+ }
return 0;
}
@@ -3019,6 +3026,32 @@ static const VMStateDescription
vmstate_virtio_net_has_vnet = {
},
};
+static bool virtio_net_rss_needed(void *opaque)
+{
+ return VIRTIO_NET(opaque)->rss_data.enabled;
+}
+
+static const VMStateDescription vmstate_virtio_net_rss = {
+ .name = "virtio-net-device/rss",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = virtio_net_rss_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_BOOL(rss_data.enabled, VirtIONet),
+ VMSTATE_BOOL(rss_data.redirect, VirtIONet),
+ VMSTATE_BOOL(rss_data.populate_hash, VirtIONet),
+ VMSTATE_UINT32(rss_data.hash_types, VirtIONet),
+ VMSTATE_UINT16(rss_data.indirections_len, VirtIONet),
+ VMSTATE_UINT16(rss_data.default_queue, VirtIONet),
+ VMSTATE_UINT8_ARRAY(rss_data.key, VirtIONet,
+ VIRTIO_NET_RSS_MAX_KEY_SIZE),
+ VMSTATE_VARRAY_UINT16_ALLOC(rss_data.indirections_table, VirtIONet,
+ rss_data.indirections_len, 0,
+ vmstate_info_uint16, uint16_t),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
static const VMStateDescription vmstate_virtio_net_device = {
.name = "virtio-net-device",
.version_id = VIRTIO_NET_VM_VERSION,
@@ -3069,6 +3102,10 @@ static const VMStateDescription
vmstate_virtio_net_device = {
has_ctrl_guest_offloads),
VMSTATE_END_OF_LIST()
},
+ .subsections = (const VMStateDescription * []) {
+ &vmstate_virtio_net_rss,
+ NULL
+ }
};
static NetClientInfo net_virtio_info = {
--
2.17.1
- [PATCH v7 0/7] reference implementation of RSS and hash report, Yuri Benditovich, 2020/03/29
- [PATCH v7 1/7] virtio-net: introduce RSS and hash report features, Yuri Benditovich, 2020/03/29
- [PATCH v7 3/7] virtio-net: implement RX RSS processing, Yuri Benditovich, 2020/03/29
- [PATCH v7 4/7] tap: allow extended virtio header with hash info, Yuri Benditovich, 2020/03/29
- [PATCH v7 2/7] virtio-net: implement RSS configuration command, Yuri Benditovich, 2020/03/29
- [PATCH v7 6/7] vmstate.h: provide VMSTATE_VARRAY_UINT16_ALLOC macro, Yuri Benditovich, 2020/03/29
- [PATCH v7 5/7] virtio-net: reference implementation of hash report, Yuri Benditovich, 2020/03/29
- [PATCH v7 7/7] virtio-net: add migration support for RSS and hash report,
Yuri Benditovich <=
- Re: [PATCH v7 0/7] reference implementation of RSS and hash report, Michael S. Tsirkin, 2020/03/31