[PATCH 2/2] igb: Add Function Level Reset to PF and VF

[Cédric Le Goater]

From: Cédric Le Goater <clg@redhat.com>

The Intel 82576EB GbE Controller say that the Physical and Virtual
Functions support Function Level Reset. Add the capability to each
device model.

Cc:  Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Fixes: 3a977deebe6b ("Intrdocue igb device emulation")
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 hw/net/igb.c   | 3 +++
 hw/net/igbvf.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/hw/net/igb.c b/hw/net/igb.c
index e70a66ee038e..b8c170ad9b1a 100644
--- a/hw/net/igb.c
+++ b/hw/net/igb.c
@@ -101,6 +101,7 @@ static void igb_write_config(PCIDevice *dev, uint32_t addr,
 
     trace_igb_write_config(addr, val, len);
     pci_default_write_config(dev, addr, val, len);
+    pcie_cap_flr_write_config(dev, addr, val, len);
 
     if (range_covers_byte(addr, len, PCI_COMMAND) &&
         (dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER)) {
@@ -433,6 +434,8 @@ static void igb_pci_realize(PCIDevice *pci_dev, Error 
**errp)
     }
 
     /* PCIe extended capabilities (in order) */
+    pcie_cap_flr_init(pci_dev);
+
     if (pcie_aer_init(pci_dev, 1, 0x100, 0x40, errp) < 0) {
         hw_error("Failed to initialize AER capability");
     }
diff --git a/hw/net/igbvf.c b/hw/net/igbvf.c
index 07343fa14a89..55e321e4ec20 100644
--- a/hw/net/igbvf.c
+++ b/hw/net/igbvf.c
@@ -204,6 +204,7 @@ static void igbvf_write_config(PCIDevice *dev, uint32_t 
addr, uint32_t val,
 {
     trace_igbvf_write_config(addr, val, len);
     pci_default_write_config(dev, addr, val, len);
+    pcie_cap_flr_write_config(dev, addr, val, len);
 }
 
 static uint64_t igbvf_mmio_read(void *opaque, hwaddr addr, unsigned size)
@@ -266,6 +267,8 @@ static void igbvf_pci_realize(PCIDevice *dev, Error **errp)
         hw_error("Failed to initialize PCIe capability");
     }
 
+    pcie_cap_flr_init(dev);
+
     if (pcie_aer_init(dev, 1, 0x100, 0x40, errp) < 0) {
         hw_error("Failed to initialize AER capability");
     }
-- 
2.41.0