If ebpf-rss-fds is specified but we fail to use, we should not fall back to loading eBPF programs by ourselves as such makes the situation complicated.
Suggested-by: Daniel P. Berrangé <berra...@redhat.com> Signed-off-by: Akihiko Odaki <akihiko.od...@daynix.com> --- hw/net/virtio-net.c | 24 +++++++++--------------- 1 file changed, 9 insertions(+), 15 deletions(-) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index e779ba2df428..2f0a4f2aabf7 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -1361,21 +1361,21 @@ static void virtio_net_disable_rss(VirtIONet *n) virtio_net_commit_rss_config(n); } -static bool virtio_net_load_ebpf_fds(VirtIONet *n) +static bool virtio_net_load_ebpf_fds(VirtIONet *n, Error **errp) { int fds[EBPF_RSS_MAX_FDS] = { [0 ... EBPF_RSS_MAX_FDS - 1] = -1}; int ret = true; int i = 0; if (n->nr_ebpf_rss_fds != EBPF_RSS_MAX_FDS) { - warn_report("Expected %d file descriptors but got %d", - EBPF_RSS_MAX_FDS, n->nr_ebpf_rss_fds); + error_setg(errp, "Expected %d file descriptors but got %d", + EBPF_RSS_MAX_FDS, n->nr_ebpf_rss_fds); return false; } for (i = 0; i < n->nr_ebpf_rss_fds; i++) { fds[i] = monitor_fd_param(monitor_cur(), n->ebpf_rss_fds[i], - &error_warn); + errp); if (fds[i] < 0) { ret = false; goto exit; @@ -1394,17 +1394,11 @@ exit: return ret; } -static bool virtio_net_load_ebpf(VirtIONet *n) +static bool virtio_net_load_ebpf(VirtIONet *n, Error **errp) { - bool ret = false; - - if (virtio_net_attach_ebpf_to_backend(n->nic, -1)) { - if (!(n->ebpf_rss_fds && virtio_net_load_ebpf_fds(n))) { - ret = ebpf_rss_load(&n->ebpf_rss); - } - } - - return ret; + return virtio_net_attach_ebpf_to_backend(n->nic, -1) && + (n->ebpf_rss_fds ? virtio_net_load_ebpf_fds(n, errp) : + ebpf_rss_load(&n->ebpf_rss)); } static void virtio_net_unload_ebpf(VirtIONet *n) @@ -3805,7 +3799,7 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp) if (virtio_has_feature(n->host_features.on_bits | n->host_features.auto_bits, VIRTIO_NET_F_RSS)) { - virtio_net_load_ebpf(n); + virtio_net_load_ebpf(n, errp); } } -- 2.45.2