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[PATCH v9 10/12] vhost_net: add NetClientState->load() callback
From: |
Eugenio Pérez |
Subject: |
[PATCH v9 10/12] vhost_net: add NetClientState->load() callback |
Date: |
Fri, 19 Aug 2022 19:00:46 +0200 |
It allows per-net client operations right after device's successful
start. In particular, to load the device status.
Vhost-vdpa net will use it to add the CVQ buffers to restore the device
status.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
v5: Rename start / load, naming it more specifically.
---
include/net/net.h | 2 ++
hw/net/vhost_net.c | 7 +++++++
2 files changed, 9 insertions(+)
diff --git a/include/net/net.h b/include/net/net.h
index 476ad45b9a..81d0b21def 100644
--- a/include/net/net.h
+++ b/include/net/net.h
@@ -45,6 +45,7 @@ typedef struct NICConf {
typedef void (NetPoll)(NetClientState *, bool enable);
typedef bool (NetCanReceive)(NetClientState *);
typedef int (NetStart)(NetClientState *);
+typedef int (NetLoad)(NetClientState *);
typedef void (NetStop)(NetClientState *);
typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t);
typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int);
@@ -74,6 +75,7 @@ typedef struct NetClientInfo {
NetReceiveIOV *receive_iov;
NetCanReceive *can_receive;
NetStart *start;
+ NetLoad *load;
NetStop *stop;
NetCleanup *cleanup;
LinkStatusChanged *link_status_changed;
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index 9d4b334453..d28f8b974b 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -281,6 +281,13 @@ static int vhost_net_start_one(struct vhost_net *net,
}
}
}
+
+ if (net->nc->info->load) {
+ r = net->nc->info->load(net->nc);
+ if (r < 0) {
+ goto fail;
+ }
+ }
return 0;
fail:
file.fd = -1;
--
2.31.1
- [PATCH v9 03/12] vhost: Delete useless read memory barrier, (continued)
- [PATCH v9 03/12] vhost: Delete useless read memory barrier, Eugenio Pérez, 2022/08/19
- [PATCH v9 04/12] vhost: Do not depend on !NULL VirtQueueElement on vhost_svq_flush, Eugenio Pérez, 2022/08/19
- [PATCH v9 05/12] vhost_net: Add NetClientInfo start callback, Eugenio Pérez, 2022/08/19
- [PATCH v9 09/12] vdpa: extract vhost_vdpa_net_cvq_add from vhost_vdpa_net_handle_ctrl_avail, Eugenio Pérez, 2022/08/19
- [PATCH v9 06/12] vhost_net: Add NetClientInfo stop callback, Eugenio Pérez, 2022/08/19
- [PATCH v9 02/12] vhost: use SVQ element ndescs instead of opaque data for desc validation, Eugenio Pérez, 2022/08/19
- [PATCH v9 07/12] vdpa: add net_vhost_vdpa_cvq_info NetClientInfo, Eugenio Pérez, 2022/08/19
- [PATCH v9 08/12] vdpa: Move command buffers map to start of net device, Eugenio Pérez, 2022/08/19
- [PATCH v9 11/12] vdpa: Add virtio-net mac address via CVQ at start, Eugenio Pérez, 2022/08/19
- [PATCH v9 12/12] vdpa: Delete CVQ migration blocker, Eugenio Pérez, 2022/08/19
- [PATCH v9 10/12] vhost_net: add NetClientState->load() callback,
Eugenio Pérez <=