From eb92b75380fc0f2368e22be45d1e2d1e2cd2f79c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= Date: Tue, 23 Aug 2022 20:30:30 +0200 Subject: [PATCH] vhost_net: Add NetClientInfo start callback MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is used by the backend to perform actions before the device is started. In particular, vdpa net use it to map CVQ buffers to the device, so it can send control commands using them. Signed-off-by: Eugenio Pérez Acked-by: Jason Wang Signed-off-by: Jason Wang --- hw/net/vhost_net.c | 7 +++++++ include/net/net.h | 2 ++ 2 files changed, 9 insertions(+) diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c index ccac5b7a64..2e0baeba26 100644 --- a/hw/net/vhost_net.c +++ b/hw/net/vhost_net.c @@ -244,6 +244,13 @@ static int vhost_net_start_one(struct vhost_net *net, struct vhost_vring_file file = { }; int r; + if (net->nc->info->start) { + r = net->nc->info->start(net->nc); + if (r < 0) { + return r; + } + } + r = vhost_dev_enable_notifiers(&net->dev, dev); if (r < 0) { goto fail_notifiers; diff --git a/include/net/net.h b/include/net/net.h index 523136c7ac..ad9e80083a 100644 --- a/include/net/net.h +++ b/include/net/net.h @@ -44,6 +44,7 @@ typedef struct NICConf { typedef void (NetPoll)(NetClientState *, bool enable); typedef bool (NetCanReceive)(NetClientState *); +typedef int (NetStart)(NetClientState *); typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t); typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int); typedef void (NetCleanup) (NetClientState *); @@ -71,6 +72,7 @@ typedef struct NetClientInfo { NetReceive *receive_raw; NetReceiveIOV *receive_iov; NetCanReceive *can_receive; + NetStart *start; NetCleanup *cleanup; LinkStatusChanged *link_status_changed; QueryRxFilter *query_rx_filter;