From d90014fc337ab77f37285b1a30fd4f545056be0a Mon Sep 17 00:00:00 2001 From: =?utf8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 23 Oct 2023 17:45:07 +0200 Subject: [PATCH] igb: Add Function Level Reset to PF and VF MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The Intel 82576EB GbE Controller say that the Physical and Virtual Functions support Function Level Reset. Add the capability to the PF device model using device property "x-pcie-flr-init" which is "on" by default and "off" for machines <= 8.1 to preserve compatibility. The FLR capability of the VF model is defined according to the FLR property of the PF, this to avoid adding an extra compatibility property. Cc: Sriram Yagnaraman Fixes: 3a977deebe6b ("Intrdocue igb device emulation") Reviewed-by: Akihiko Odaki Tested-by: Akihiko Odaki Signed-off-by: Cédric Le Goater Signed-off-by: Jason Wang --- hw/core/machine.c | 3 ++- hw/net/igb.c | 9 +++++++++ hw/net/igbvf.c | 9 +++++++++ 3 files changed, 20 insertions(+), 1 deletion(-) diff --git a/hw/core/machine.c b/hw/core/machine.c index 50edaab737..0c17398141 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -35,7 +35,8 @@ GlobalProperty hw_compat_8_1[] = { { TYPE_PCI_BRIDGE, "x-pci-express-writeable-slt-bug", "true" }, { "ramfb", "x-migrate", "off" }, - { "vfio-pci-nohotplug", "x-ramfb-migrate", "off" } + { "vfio-pci-nohotplug", "x-ramfb-migrate", "off" }, + { "igb", "x-pcie-flr-init", "off" }, }; const size_t hw_compat_8_1_len = G_N_ELEMENTS(hw_compat_8_1); diff --git a/hw/net/igb.c b/hw/net/igb.c index e70a66ee03..dfb722b695 100644 --- a/hw/net/igb.c +++ b/hw/net/igb.c @@ -78,6 +78,7 @@ struct IGBState { uint32_t ioaddr; IGBCore core; + bool has_flr; }; #define IGB_CAP_SRIOV_OFFSET (0x160) @@ -101,6 +102,9 @@ 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); + if (s->has_flr) { + 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 +437,10 @@ static void igb_pci_realize(PCIDevice *pci_dev, Error **errp) } /* PCIe extended capabilities (in order) */ + if (s->has_flr) { + pcie_cap_flr_init(pci_dev); + } + if (pcie_aer_init(pci_dev, 1, 0x100, 0x40, errp) < 0) { hw_error("Failed to initialize AER capability"); } @@ -588,6 +596,7 @@ static const VMStateDescription igb_vmstate = { static Property igb_properties[] = { DEFINE_NIC_PROPERTIES(IGBState, conf), + DEFINE_PROP_BOOL("x-pcie-flr-init", IGBState, has_flr, true), DEFINE_PROP_END_OF_LIST(), }; diff --git a/hw/net/igbvf.c b/hw/net/igbvf.c index 07343fa14a..94a4e885f2 100644 --- a/hw/net/igbvf.c +++ b/hw/net/igbvf.c @@ -204,6 +204,10 @@ 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); + if (object_property_get_bool(OBJECT(pcie_sriov_get_pf(dev)), + "x-pcie-flr-init", &error_abort)) { + pcie_cap_flr_write_config(dev, addr, val, len); + } } static uint64_t igbvf_mmio_read(void *opaque, hwaddr addr, unsigned size) @@ -266,6 +270,11 @@ static void igbvf_pci_realize(PCIDevice *dev, Error **errp) hw_error("Failed to initialize PCIe capability"); } + if (object_property_get_bool(OBJECT(pcie_sriov_get_pf(dev)), + "x-pcie-flr-init", &error_abort)) { + pcie_cap_flr_init(dev); + } + if (pcie_aer_init(dev, 1, 0x100, 0x40, errp) < 0) { hw_error("Failed to initialize AER capability"); } -- 2.11.4.GIT