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hw/net: improve tracing of eBPF RSS setup

Browse source 
This adds more trace events to key eBPF RSS setup operations, and
also distinguishes events from multiple NIC instances.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2024-10-23 09:51:03 +01:00 • committed by Jason Wang
parent f5cae19d10
commit ae311fb315
2 changed files with 11 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

9
hw/net/virtio-net.c
View file

@ -1241,6 +1241,7 @@ static bool virtio_net_attach_ebpf_to_backend(NICState *nic, int prog_fd)
return false;
}
trace_virtio_net_rss_attach_ebpf(nic, prog_fd);
return nc->info->set_steering_ebpf(nc, prog_fd);
}
@ -1297,12 +1298,13 @@ static void virtio_net_commit_rss_config(VirtIONet *n)
}
}
trace_virtio_net_rss_enable(n->rss_data.hash_types,
trace_virtio_net_rss_enable(n,
n->rss_data.hash_types,
n->rss_data.indirections_len,
sizeof(n->rss_data.key));
} else {
virtio_net_detach_ebpf_rss(n);
trace_virtio_net_rss_disable();
trace_virtio_net_rss_disable(n);
}
}
@ -1353,6 +1355,7 @@ static bool virtio_net_load_ebpf(VirtIONet *n, Error **errp)
bool ret = false;
if (virtio_net_attach_ebpf_to_backend(n->nic, -1)) {
trace_virtio_net_rss_load(n, n->nr_ebpf_rss_fds, n->ebpf_rss_fds);
if (n->ebpf_rss_fds) {
ret = virtio_net_load_ebpf_fds(n, errp);
} else {
@ -1484,7 +1487,7 @@ static uint16_t virtio_net_handle_rss(VirtIONet *n,
virtio_net_commit_rss_config(n);
return queue_pairs;
error:
trace_virtio_net_rss_error(err_msg, err_value);
trace_virtio_net_rss_error(n, err_msg, err_value);
virtio_net_disable_rss(n);
return 0;
}