tests/libqos/pci.h

   1 /*
   2  * libqos PCI bindings
   3  *
   4  * Copyright IBM, Corp. 2012-2013
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef LIBQOS_PCI_H
  14 #define LIBQOS_PCI_H
  15
  16 #include "libqtest.h"
  17
  18 #define QPCI_PIO_LIMIT    0x10000
  19
  20 #define QPCI_DEVFN(dev, fn) (((dev) << 3) | (fn))
  21
  22 typedef struct QPCIDevice QPCIDevice;
  23 typedef struct QPCIBus QPCIBus;
  24
  25 struct QPCIBus {
  26     uint8_t (*pio_readb)(QPCIBus *bus, uint32_t addr);
  27     uint16_t (*pio_readw)(QPCIBus *bus, uint32_t addr);
  28     uint32_t (*pio_readl)(QPCIBus *bus, uint32_t addr);
  29
  30     void (*pio_writeb)(QPCIBus *bus, uint32_t addr, uint8_t value);
  31     void (*pio_writew)(QPCIBus *bus, uint32_t addr, uint16_t value);
  32     void (*pio_writel)(QPCIBus *bus, uint32_t addr, uint32_t value);
  33
  34     void (*memread)(QPCIBus *bus, uint32_t addr, void *buf, size_t len);
  35     void (*memwrite)(QPCIBus *bus, uint32_t addr, const void *buf, size_t len);
  36
  37     uint8_t (*config_readb)(QPCIBus *bus, int devfn, uint8_t offset);
  38     uint16_t (*config_readw)(QPCIBus *bus, int devfn, uint8_t offset);
  39     uint32_t (*config_readl)(QPCIBus *bus, int devfn, uint8_t offset);
  40
  41     void (*config_writeb)(QPCIBus *bus, int devfn,
  42                           uint8_t offset, uint8_t value);
  43     void (*config_writew)(QPCIBus *bus, int devfn,
  44                           uint8_t offset, uint16_t value);
  45     void (*config_writel)(QPCIBus *bus, int devfn,
  46                           uint8_t offset, uint32_t value);
  47
  48     uint16_t pio_alloc_ptr;
  49     uint64_t mmio_alloc_ptr, mmio_limit;
  50 };
  51
  52 struct QPCIDevice
  53 {
  54     QPCIBus *bus;
  55     int devfn;
  56     bool msix_enabled;
  57     void *msix_table;
  58     void *msix_pba;
  59 };
  60
  61 void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id,
  62                          void (*func)(QPCIDevice *dev, int devfn, void *data),
  63                          void *data);
  64 QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn);
  65
  66 void qpci_device_enable(QPCIDevice *dev);
  67 uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id);
  68 void qpci_msix_enable(QPCIDevice *dev);
  69 void qpci_msix_disable(QPCIDevice *dev);
  70 bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry);
  71 bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry);
  72 uint16_t qpci_msix_table_size(QPCIDevice *dev);
  73
  74 uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset);
  75 uint16_t qpci_config_readw(QPCIDevice *dev, uint8_t offset);
  76 uint32_t qpci_config_readl(QPCIDevice *dev, uint8_t offset);
  77
  78 void qpci_config_writeb(QPCIDevice *dev, uint8_t offset, uint8_t value);
  79 void qpci_config_writew(QPCIDevice *dev, uint8_t offset, uint16_t value);
  80 void qpci_config_writel(QPCIDevice *dev, uint8_t offset, uint32_t value);
  81
  82 uint8_t qpci_io_readb(QPCIDevice *dev, void *data);
  83 uint16_t qpci_io_readw(QPCIDevice *dev, void *data);
  84 uint32_t qpci_io_readl(QPCIDevice *dev, void *data);
  85
  86 void qpci_io_writeb(QPCIDevice *dev, void *data, uint8_t value);
  87 void qpci_io_writew(QPCIDevice *dev, void *data, uint16_t value);
  88 void qpci_io_writel(QPCIDevice *dev, void *data, uint32_t value);
  89
  90 void qpci_memread(QPCIDevice *bus, void *data, void *buf, size_t len);
  91 void qpci_memwrite(QPCIDevice *bus, void *data, const void *buf, size_t len);
  92
  93 void *qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr);
  94 void qpci_iounmap(QPCIDevice *dev, void *data);
  95 void *qpci_legacy_iomap(QPCIDevice *dev, uint16_t addr);
  96
  97 void qpci_plug_device_test(const char *driver, const char *id,
  98                            uint8_t slot, const char *opts);
  99 void qpci_unplug_acpi_device_test(const char *id, uint8_t slot);
 100 #endif