commit 31180dbdca2859ae9841939f85158908453ea01d
author Akihiko Odaki <akihiko.odaki@daynix.com> Thu Feb 23 19:50:50 2023 +0900
committer Jason Wang <jasowang@redhat.com> Fri Mar 10 15:35:38 2023 +0800
tree b54075e7b8ba7266655543921cf8701b8da71e36
parent 65f474bbae9a33b08707084efb95701e187f79e3

pcie: Introduce pcie_sriov_num_vfs

igb can use this function to change its behavior depending on the
number of virtual functions currently enabled.

Signed-off-by: Gal Hammer <gal.hammer@sap.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>

hw/pci/pcie_sriov.c

diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c
index f0bd72e..aa5a757 100644
--- a/hw/pci/pcie_sriov.c
+++ b/hw/pci/pcie_sriov.c
@@ -300,3 +300,8 @@
     }
     return NULL;
 }
+
+uint16_t pcie_sriov_num_vfs(PCIDevice *dev)
+{
+    return dev->exp.sriov_pf.num_vfs;
+}

include/hw/pci/pcie_sriov.h

diff --git a/include/hw/pci/pcie_sriov.h b/include/hw/pci/pcie_sriov.h
index 96cc743..095fb0c 100644
--- a/include/hw/pci/pcie_sriov.h
+++ b/include/hw/pci/pcie_sriov.h
@@ -76,4 +76,7 @@
  */
 PCIDevice *pcie_sriov_get_vf_at_index(PCIDevice *dev, int n);
 
+/* Returns the current number of virtual functions. */
+uint16_t pcie_sriov_num_vfs(PCIDevice *dev);
+
 #endif /* QEMU_PCIE_SRIOV_H */