| Message ID | 20230526231558.1660396-4-alex.williamson@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | vfio/pci: Atomic Ops completer support | expand |
On 5/27/23 01:15, Alex Williamson wrote: > Report the PCIe capability version for a device > > Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Thanks, C. > --- > hw/pci/pcie.c | 7 +++++++ > include/hw/pci/pcie.h | 1 + > 2 files changed, 8 insertions(+) > > diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c > index b8c24cf45f7e..b7f107ed8dd4 100644 > --- a/hw/pci/pcie.c > +++ b/hw/pci/pcie.c > @@ -274,6 +274,13 @@ uint8_t pcie_cap_get_type(const PCIDevice *dev) > PCI_EXP_FLAGS_TYPE) >> PCI_EXP_FLAGS_TYPE_SHIFT; > } > > +uint8_t pcie_cap_get_version(const PCIDevice *dev) > +{ > + uint32_t pos = dev->exp.exp_cap; > + assert(pos > 0); > + return pci_get_word(dev->config + pos + PCI_EXP_FLAGS) & PCI_EXP_FLAGS_VERS; > +} > + > /* MSI/MSI-X */ > /* pci express interrupt message number */ > /* 7.8.2 PCI Express Capabilities Register: Interrupt Message Number */ > diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h > index 3cc2b159570f..51ab57bc3c50 100644 > --- a/include/hw/pci/pcie.h > +++ b/include/hw/pci/pcie.h > @@ -93,6 +93,7 @@ void pcie_cap_exit(PCIDevice *dev); > int pcie_endpoint_cap_v1_init(PCIDevice *dev, uint8_t offset); > void pcie_cap_v1_exit(PCIDevice *dev); > uint8_t pcie_cap_get_type(const PCIDevice *dev); > +uint8_t pcie_cap_get_version(const PCIDevice *dev); > void pcie_cap_flags_set_vector(PCIDevice *dev, uint8_t vector); > uint8_t pcie_cap_flags_get_vector(PCIDevice *dev); >
On 5/27/23 01:15, Alex Williamson wrote: > Report the PCIe capability version for a device > > Signed-off-by: Alex Williamson <alex.williamson@redhat.com>Reviewed-by: Robin Voetter <robin@streamhpc.com> Tested-by: Robin Voetter <robin@streamhpc.com> Kind regards, Robin Voetter
On 1/6/23 00:02, Robin Voetter wrote: > On 5/27/23 01:15, Alex Williamson wrote: >> Report the PCIe capability version for a device >> >> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Robin Voetter <robin@streamhpc.com> Tested-by: Robin Voetter <robin@streamhpc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> > > Kind regards, > > Robin Voetter >
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index b8c24cf45f7e..b7f107ed8dd4 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -274,6 +274,13 @@ uint8_t pcie_cap_get_type(const PCIDevice *dev) PCI_EXP_FLAGS_TYPE) >> PCI_EXP_FLAGS_TYPE_SHIFT; } +uint8_t pcie_cap_get_version(const PCIDevice *dev) +{ + uint32_t pos = dev->exp.exp_cap; + assert(pos > 0); + return pci_get_word(dev->config + pos + PCI_EXP_FLAGS) & PCI_EXP_FLAGS_VERS; +} + /* MSI/MSI-X */ /* pci express interrupt message number */ /* 7.8.2 PCI Express Capabilities Register: Interrupt Message Number */ diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h index 3cc2b159570f..51ab57bc3c50 100644 --- a/include/hw/pci/pcie.h +++ b/include/hw/pci/pcie.h @@ -93,6 +93,7 @@ void pcie_cap_exit(PCIDevice *dev); int pcie_endpoint_cap_v1_init(PCIDevice *dev, uint8_t offset); void pcie_cap_v1_exit(PCIDevice *dev); uint8_t pcie_cap_get_type(const PCIDevice *dev); +uint8_t pcie_cap_get_version(const PCIDevice *dev); void pcie_cap_flags_set_vector(PCIDevice *dev, uint8_t vector); uint8_t pcie_cap_flags_get_vector(PCIDevice *dev);
Report the PCIe capability version for a device Signed-off-by: Alex Williamson <alex.williamson@redhat.com> --- hw/pci/pcie.c | 7 +++++++ include/hw/pci/pcie.h | 1 + 2 files changed, 8 insertions(+)