Re:how to change nic's tx/rx ring size inside vm
this code answers my question, but why?
n->net_conf.tx_queue_size = MIN(virtio_net_max_tx_queue_size(n),
n->net_conf.tx_queue_size);
n->net_conf.tx_queue_size is 256 if peer->info->type !=
NET_CLIENT_DRIVER_VHOST_USER.
At 2021-12-30 17:06:05, "longguang.yue" <libvirt(a)163.com> wrote:
Hi, all:
my environment is qemu-kvm-6.0.0, 4.18.0-240, libvirt 7.4.0. vm is configured like this
queues='4' rx_queue_size='1024' tx_queue_size='1024'.
inside vm i can not change nic's ring size.
changing tx leads to error 'Cannot set device ring parameters: Operation not
supported'.
changing rx leads to error 'rx unmodified, ignoring. no ring parameters changed,
aborting'
how to make it work and confirm what current value is?
thanks
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