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[PATCH v2 03/15] pcie: Add helpers to the SR/IOV API
From: |
Łukasz Gieryk |
Subject: |
[PATCH v2 03/15] pcie: Add helpers to the SR/IOV API |
Date: |
Tue, 16 Nov 2021 16:34:34 +0100 |
Two convenience functions for retrieving:
- the total number of VFs,
- the PCIDevice object of the N-th VF.
Signed-off-by: Łukasz Gieryk <lukasz.gieryk@linux.intel.com>
Reviewed-by: Knut Omang <knuto@ifi.uio.no>
---
hw/pci/pcie_sriov.c | 14 ++++++++++++++
include/hw/pci/pcie_sriov.h | 8 ++++++++
2 files changed, 22 insertions(+)
diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c
index 501a1ff433..3515cb603d 100644
--- a/hw/pci/pcie_sriov.c
+++ b/hw/pci/pcie_sriov.c
@@ -280,8 +280,22 @@ uint16_t pcie_sriov_vf_number(PCIDevice *dev)
return dev->exp.sriov_vf.vf_number;
}
+uint16_t pcie_sriov_vf_number_total(PCIDevice *dev)
+{
+ assert(!pci_is_vf(dev));
+ return dev->exp.sriov_pf.num_vfs;
+}
PCIDevice *pcie_sriov_get_pf(PCIDevice *dev)
{
return dev->exp.sriov_vf.pf;
}
+
+PCIDevice *pcie_sriov_get_vf_at_index(PCIDevice *dev, int n)
+{
+ assert(!pci_is_vf(dev));
+ if (n < dev->exp.sriov_pf.num_vfs) {
+ return dev->exp.sriov_pf.vf[n];
+ }
+ return NULL;
+}
diff --git a/include/hw/pci/pcie_sriov.h b/include/hw/pci/pcie_sriov.h
index 0974f00054..33ed6d0686 100644
--- a/include/hw/pci/pcie_sriov.h
+++ b/include/hw/pci/pcie_sriov.h
@@ -59,9 +59,17 @@ void pcie_sriov_pf_disable_vfs(PCIDevice *dev);
/* Get logical VF number of a VF - only valid for VFs */
uint16_t pcie_sriov_vf_number(PCIDevice *dev);
+/* Get the total number of VFs - only valid for PF */
+uint16_t pcie_sriov_vf_number_total(PCIDevice *dev);
+
/* Get the physical function that owns this VF.
* Returns NULL if dev is not a virtual function
*/
PCIDevice *pcie_sriov_get_pf(PCIDevice *dev);
+/* Get the n-th VF of this physical function - only valid for PF.
+ * Returns NULL if index is invalid
+ */
+PCIDevice *pcie_sriov_get_vf_at_index(PCIDevice *dev, int n);
+
#endif /* QEMU_PCIE_SRIOV_H */
--
2.25.1
- [PATCH v2 02/15] pcie: Add some SR/IOV API documentation in docs/pcie_sriov.txt, (continued)
- [PATCH v2 02/15] pcie: Add some SR/IOV API documentation in docs/pcie_sriov.txt, Łukasz Gieryk, 2021/11/16
- [PATCH v2 04/15] pcie: Add 1.2 version token for the Power Management Capability, Łukasz Gieryk, 2021/11/16
- [PATCH v2 05/15] hw/nvme: Add support for SR-IOV, Łukasz Gieryk, 2021/11/16
- [PATCH v2 06/15] hw/nvme: Add support for Primary Controller Capabilities, Łukasz Gieryk, 2021/11/16
- [PATCH v2 07/15] hw/nvme: Add support for Secondary Controller List, Łukasz Gieryk, 2021/11/16
- [PATCH v2 08/15] hw/nvme: Implement the Function Level Reset, Łukasz Gieryk, 2021/11/16
- [PATCH v2 09/15] hw/nvme: Make max_ioqpairs and msix_qsize configurable in runtime, Łukasz Gieryk, 2021/11/16
- [PATCH v2 10/15] hw/nvme: Remove reg_size variable and update BAR0 size calculation, Łukasz Gieryk, 2021/11/16
- [PATCH v2 03/15] pcie: Add helpers to the SR/IOV API,
Łukasz Gieryk <=
- [PATCH v2 11/15] hw/nvme: Calculate BAR attributes in a function, Łukasz Gieryk, 2021/11/16
- [PATCH v2 12/15] hw/nvme: Initialize capability structures for primary/secondary controllers, Łukasz Gieryk, 2021/11/16
- [PATCH v2 14/15] docs: Add documentation for SR-IOV and Virtualization Enhancements, Łukasz Gieryk, 2021/11/16
- [PATCH v2 15/15] hw/nvme: Update the initalization place for the AER queue, Łukasz Gieryk, 2021/11/16
- [PATCH v2 13/15] hw/nvme: Add support for the Virtualization Management command, Łukasz Gieryk, 2021/11/16