On 2/14/2024 10:54 AM, Eugenio Perez Martin wrote:
On Wed, Feb 14, 2024 at 1:39 PM Si-Wei Liu <si-wei....@oracle.com> wrote:
Introduce new API. No functional change on existing API.

Acked-by: Jason Wang <jasow...@redhat.com>
Signed-off-by: Si-Wei Liu <si-wei....@oracle.com>
I'm ok with the new function, but doesn't the compiler complain
because adding a static function is not used?
Hmmm, which one? vhost_vdpa_net_get_nc_vdpa is used by vhost_vdpa_net_first_nc_vdpa internally, and vhost_vdpa_net_first_nc_vdpa is used by vhost_vdpa_net_cvq_start (Patch 01). I think we should be fine?

-Siwei

---
  net/vhost-vdpa.c | 13 +++++++++----
  1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 06c83b4..4168cad 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -281,13 +281,18 @@ static ssize_t vhost_vdpa_receive(NetClientState *nc, 
const uint8_t *buf,
  }


-/** From any vdpa net client, get the netclient of the first queue pair */
-static VhostVDPAState *vhost_vdpa_net_first_nc_vdpa(VhostVDPAState *s)
+/** From any vdpa net client, get the netclient of the i-th queue pair */
+static VhostVDPAState *vhost_vdpa_net_get_nc_vdpa(VhostVDPAState *s, int i)
  {
      NICState *nic = qemu_get_nic(s->nc.peer);
-    NetClientState *nc0 = qemu_get_peer(nic->ncs, 0);
+    NetClientState *nc_i = qemu_get_peer(nic->ncs, i);
+
+    return DO_UPCAST(VhostVDPAState, nc, nc_i);
+}

-    return DO_UPCAST(VhostVDPAState, nc, nc0);
+static VhostVDPAState *vhost_vdpa_net_first_nc_vdpa(VhostVDPAState *s)
+{
+    return vhost_vdpa_net_get_nc_vdpa(s, 0);
  }

  static void vhost_vdpa_net_log_global_enable(VhostVDPAState *s, bool enable)
--
1.8.3.1



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