projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c0fa8df KO |
1 | /* |
| 2 | * pcie_sriov.h: | |
| 3 | * | |
| 4 | * Implementation of SR/IOV emulation support. | |
| 5 | * | |
| 6 | * Copyright (c) 2015 Knut Omang <knut.omang@oracle.com> | |
| 7 | * | |
| 8 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
| 9 | * See the COPYING file in the top-level directory. | |
| 10 | * | |
| 11 | */ | |
| 12 | ||
| 13 | #ifndef QEMU_PCIE_SRIOV_H | |
| 14 | #define QEMU_PCIE_SRIOV_H | |
| 15 | ||
| 104a2dd6 MA |
16 | #include "hw/pci/pci.h" |
| 17 | ||
| fe5943fe | 18 | typedef struct PCIESriovPF { |
| 7c0fa8df KO |
19 | uint16_t num_vfs; /* Number of virtual functions created */ |
| 20 | uint8_t vf_bar_type[PCI_NUM_REGIONS]; /* Store type for each VF bar */ | |
| 21 | const char *vfname; /* Reference to the device type used for the VFs */ | |
| 22 | PCIDevice **vf; /* Pointer to an array of num_vfs VF devices */ | |
| fe5943fe | 23 | } PCIESriovPF; |
| 7c0fa8df | 24 | |
| fe5943fe | 25 | typedef struct PCIESriovVF { |
| 7c0fa8df KO |
26 | PCIDevice *pf; /* Pointer back to owner physical function */ |
| 27 | uint16_t vf_number; /* Logical VF number of this function */ | |
| fe5943fe | 28 | } PCIESriovVF; |
| 7c0fa8df KO |
29 | |
| 30 | void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, | |
| 31 | const char *vfname, uint16_t vf_dev_id, | |
| 32 | uint16_t init_vfs, uint16_t total_vfs, | |
| 33 | uint16_t vf_offset, uint16_t vf_stride); | |
| 34 | void pcie_sriov_pf_exit(PCIDevice *dev); | |
| 35 | ||
| 36 | /* Set up a VF bar in the SR/IOV bar area */ | |
| 37 | void pcie_sriov_pf_init_vf_bar(PCIDevice *dev, int region_num, | |
| 38 | uint8_t type, dma_addr_t size); | |
| 39 | ||
| 40 | /* Instantiate a bar for a VF */ | |
| 41 | void pcie_sriov_vf_register_bar(PCIDevice *dev, int region_num, | |
| 42 | MemoryRegion *memory); | |
| 43 | ||
| 44 | /* | |
| 45 | * Default (minimal) page size support values | |
| 46 | * as required by the SR/IOV standard: | |
| 47 | * 0x553 << 12 = 0x553000 = 4K + 8K + 64K + 256K + 1M + 4M | |
| 48 | */ | |
| 49 | #define SRIOV_SUP_PGSIZE_MINREQ 0x553 | |
| 50 | ||
| 51 | /* | |
| 52 | * Optionally add supported page sizes to the mask of supported page sizes | |
| 53 | * Page size values are interpreted as opt_sup_pgsize << 12. | |
| 54 | */ | |
| 55 | void pcie_sriov_pf_add_sup_pgsize(PCIDevice *dev, uint16_t opt_sup_pgsize); | |
| 56 | ||
| 57 | /* SR/IOV capability config write handler */ | |
| 58 | void pcie_sriov_config_write(PCIDevice *dev, uint32_t address, | |
| 59 | uint32_t val, int len); | |
| 60 | ||
| c8bc4db4 AO |
61 | /* Reset SR/IOV */ |
| 62 | void pcie_sriov_pf_reset(PCIDevice *dev); | |
| 7c0fa8df KO |
63 | |
| 64 | /* Get logical VF number of a VF - only valid for VFs */ | |
| 65 | uint16_t pcie_sriov_vf_number(PCIDevice *dev); | |
| 66 | ||
| 67 | /* | |
| 68 | * Get the physical function that owns this VF. | |
| 69 | * Returns NULL if dev is not a virtual function | |
| 70 | */ | |
| 71 | PCIDevice *pcie_sriov_get_pf(PCIDevice *dev); | |
| 72 | ||
| 69387f49 ŁG |
73 | /* |
| 74 | * Get the n-th VF of this physical function - only valid for PF. | |
| 75 | * Returns NULL if index is invalid | |
| 76 | */ | |
| 77 | PCIDevice *pcie_sriov_get_vf_at_index(PCIDevice *dev, int n); | |
| 78 | ||
| 31180dbd AO |
79 | /* Returns the current number of virtual functions. */ |
| 80 | uint16_t pcie_sriov_num_vfs(PCIDevice *dev); | |
| 81 | ||
| 7c0fa8df | 82 | #endif /* QEMU_PCIE_SRIOV_H */ |