[PATCH v5 1/2] pcie: Use common ARI next function number

[Akihiko Odaki]

Currently the only implementers of ARI is SR-IOV devices, and they
behave similar. Share the ARI next function number.

Signed-off-by: Akihiko Odaki <akihiko.od...@daynix.com>
---
 docs/pcie_sriov.txt   | 4 ++--
 include/hw/pci/pcie.h | 2 +-
 hw/net/igb.c          | 2 +-
 hw/net/igbvf.c        | 2 +-
 hw/nvme/ctrl.c        | 2 +-
 hw/pci/pcie.c         | 4 +++-
 6 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/docs/pcie_sriov.txt b/docs/pcie_sriov.txt
index 7eff7f2703..a47aad0bfa 100644
--- a/docs/pcie_sriov.txt
+++ b/docs/pcie_sriov.txt
@@ -48,7 +48,7 @@ setting up a BAR for a VF.
       ...
       int ret = pcie_endpoint_cap_init(d, 0x70);
       ...
-      pcie_ari_init(d, 0x100, 1);
+      pcie_ari_init(d, 0x100);
       ...
 
       /* Add and initialize the SR/IOV capability */
@@ -78,7 +78,7 @@ setting up a BAR for a VF.
       ...
       int ret = pcie_endpoint_cap_init(d, 0x60);
       ...
-      pcie_ari_init(d, 0x100, 1);
+      pcie_ari_init(d, 0x100);
       ...
       memory_region_init(mr, ... )
       pcie_sriov_vf_register_bar(d, bar_nr, mr);
diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h
index 3cc2b15957..bf7dc5d685 100644
--- a/include/hw/pci/pcie.h
+++ b/include/hw/pci/pcie.h
@@ -134,7 +134,7 @@ void pcie_sync_bridge_lnk(PCIDevice *dev);
 void pcie_acs_init(PCIDevice *dev, uint16_t offset);
 void pcie_acs_reset(PCIDevice *dev);
 
-void pcie_ari_init(PCIDevice *dev, uint16_t offset, uint16_t nextfn);
+void pcie_ari_init(PCIDevice *dev, uint16_t offset);
 void pcie_dev_ser_num_init(PCIDevice *dev, uint16_t offset, uint64_t ser_num);
 void pcie_ats_init(PCIDevice *dev, uint16_t offset, bool aligned);
 
diff --git a/hw/net/igb.c b/hw/net/igb.c
index 1c989d7677..8ff832acfc 100644
--- a/hw/net/igb.c
+++ b/hw/net/igb.c
@@ -431,7 +431,7 @@ static void igb_pci_realize(PCIDevice *pci_dev, Error 
**errp)
         hw_error("Failed to initialize AER capability");
     }
 
-    pcie_ari_init(pci_dev, 0x150, 1);
+    pcie_ari_init(pci_dev, 0x150);
 
     pcie_sriov_pf_init(pci_dev, IGB_CAP_SRIOV_OFFSET, TYPE_IGBVF,
         IGB_82576_VF_DEV_ID, IGB_MAX_VF_FUNCTIONS, IGB_MAX_VF_FUNCTIONS,
diff --git a/hw/net/igbvf.c b/hw/net/igbvf.c
index 284ea61184..d55e1e8a6a 100644
--- a/hw/net/igbvf.c
+++ b/hw/net/igbvf.c
@@ -270,7 +270,7 @@ static void igbvf_pci_realize(PCIDevice *dev, Error **errp)
         hw_error("Failed to initialize AER capability");
     }
 
-    pcie_ari_init(dev, 0x150, 1);
+    pcie_ari_init(dev, 0x150);
 }
 
 static void igbvf_pci_uninit(PCIDevice *dev)
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index fd917fcda1..8b7168a266 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -8088,7 +8088,7 @@ static bool nvme_init_pci(NvmeCtrl *n, PCIDevice 
*pci_dev, Error **errp)
     pcie_endpoint_cap_init(pci_dev, 0x80);
     pcie_cap_flr_init(pci_dev);
     if (n->params.sriov_max_vfs) {
-        pcie_ari_init(pci_dev, 0x100, 1);
+        pcie_ari_init(pci_dev, 0x100);
     }
 
     /* add one to max_ioqpairs to account for the admin queue pair */
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c
index b8c24cf45f..9a3f6430e8 100644
--- a/hw/pci/pcie.c
+++ b/hw/pci/pcie.c
@@ -1028,8 +1028,10 @@ void pcie_sync_bridge_lnk(PCIDevice *bridge_dev)
  */
 
 /* ARI */
-void pcie_ari_init(PCIDevice *dev, uint16_t offset, uint16_t nextfn)
+void pcie_ari_init(PCIDevice *dev, uint16_t offset)
 {
+    uint16_t nextfn = 1;
+
     pcie_add_capability(dev, PCI_EXT_CAP_ID_ARI, PCI_ARI_VER,
                         offset, PCI_ARI_SIZEOF);
     pci_set_long(dev->config + offset + PCI_ARI_CAP, (nextfn & 0xff) << 8);
-- 
2.41.0