| Message ID | 20220809173926.1695280-11-eperezma@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | NIC vhost-vdpa state restore via Shadow CVQ | expand |
On Wed, Aug 10, 2022 at 1:40 AM Eugenio Pérez <eperezma@redhat.com> wrote: > > 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 >
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;
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> --- v5: Rename start / load, naming it more specifically. --- include/net/net.h | 2 ++ hw/net/vhost_net.c | 7 +++++++ 2 files changed, 9 insertions(+)