[09/12] vdpa: add trace event for vhost_vdpa_net_load_mq

Commit Message

Si-Wei Liu Feb. 14, 2024, 11:27 a.m. UTC

For better debuggability and observability.

Reviewed-by: Eugenio Pérez <[e-mail]>
Signed-off-by: Si-Wei Liu <[e-mail]>
---
 net/trace-events | 1 +
 net/vhost-vdpa.c | 2 ++
 2 files changed, 3 insertions(+)

Patch

diff --git a/net/trace-events b/net/trace-events
index 88f56f2..cda960f 100644
--- a/net/trace-events
+++ b/net/trace-events
@@ -28,3 +28,4 @@  colo_filter_rewriter_conn_offset(uint32_t offset) ": offset=%u"
 vhost_vdpa_set_address_space_id(void *v, unsigned vq_group, unsigned asid_num) "vhost_vdpa: %p vq_group: %u asid: %u"
 vhost_vdpa_net_load_cmd(void *s, uint8_t class, uint8_t cmd, int data_num, int data_size) "vdpa state: %p class: %u cmd: %u sg_num: %d size: %d"
 vhost_vdpa_net_load_cmd_retval(void *s, uint8_t class, uint8_t cmd, int r) "vdpa state: %p class: %u cmd: %u retval: %d"
+vhost_vdpa_net_load_mq(void *s, int ncurqps) "vdpa state: %p current_qpairs: %d"
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 6ee438f..9f25221 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -901,6 +901,8 @@  static int vhost_vdpa_net_load_mq(VhostVDPAState *s,
         return 0;
     }
 
+    trace_vhost_vdpa_net_load_mq(s, n->curr_queue_pairs);
+
     mq.virtqueue_pairs = cpu_to_le16(n->curr_queue_pairs);
     const struct iovec data = {
         .iov_base = &mq,