> -----Original Message----- > From: Maxime Coquelin <[email protected]> > Sent: Friday, March 31, 2023 11:43 PM > To: [email protected]; [email protected]; Xia, Chenbo > <[email protected]>; [email protected]; [email protected]; > [email protected]; Liang, Cunming <[email protected]>; Xie, Yongji > <[email protected]>; [email protected]; [email protected]; > [email protected] > Cc: Maxime Coquelin <[email protected]> > Subject: [RFC 16/27] net/vhost: use API to set max queue pairs > > In order to support multiqueue with VDUSE, we need to > be able to limit the maximum number of queue pairs, to > avoid unnecessary memory consumption since the maximum > number of queue pairs need to be allocated at device > creation time, as opposed to Vhost-user which allocate > only when the frontend initialize them. > > Signed-off-by: Maxime Coquelin <[email protected]> > --- > drivers/net/vhost/rte_eth_vhost.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/net/vhost/rte_eth_vhost.c > b/drivers/net/vhost/rte_eth_vhost.c > index 62ef955ebc..8d37ec9775 100644 > --- a/drivers/net/vhost/rte_eth_vhost.c > +++ b/drivers/net/vhost/rte_eth_vhost.c > @@ -1013,6 +1013,9 @@ vhost_driver_setup(struct rte_eth_dev *eth_dev) > goto drv_unreg; > } > > + if (rte_vhost_driver_set_max_queue_num(internal->iface_name, > internal->max_queues)) > + goto drv_unreg; > + > if (rte_vhost_driver_callback_register(internal->iface_name, > &vhost_ops) < 0) { > VHOST_LOG(ERR, "Can't register callbacks\n"); > -- > 2.39.2
Reviewed-by: Chenbo Xia <[email protected]>
