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 <stdint.h> 17 #include "libqtest.h" 18 19 #define QPCI_DEVFN(dev, fn) (((dev) << 3) | (fn)) 20 21 typedef struct QPCIDevice QPCIDevice; 22 typedef struct QPCIBus QPCIBus; 23 24 struct QPCIBus 25 { 26 uint8_t (*io_readb)(QPCIBus *bus, void *addr); 27 uint16_t (*io_readw)(QPCIBus *bus, void *addr); 28 uint32_t (*io_readl)(QPCIBus *bus, void *addr); 29 30 void (*io_writeb)(QPCIBus *bus, void *addr, uint8_t value); 31 void (*io_writew)(QPCIBus *bus, void *addr, uint16_t value); 32 void (*io_writel)(QPCIBus *bus, void *addr, uint32_t value); 33 34 uint8_t (*config_readb)(QPCIBus *bus, int devfn, uint8_t offset); 35 uint16_t (*config_readw)(QPCIBus *bus, int devfn, uint8_t offset); 36 uint32_t (*config_readl)(QPCIBus *bus, int devfn, uint8_t offset); 37 38 void (*config_writeb)(QPCIBus *bus, int devfn, 39 uint8_t offset, uint8_t value); 40 void (*config_writew)(QPCIBus *bus, int devfn, 41 uint8_t offset, uint16_t value); 42 void (*config_writel)(QPCIBus *bus, int devfn, 43 uint8_t offset, uint32_t value); 44 45 void *(*iomap)(QPCIBus *bus, QPCIDevice *dev, int barno, uint64_t *sizeptr); 46 void (*iounmap)(QPCIBus *bus, void *data); 47 }; 48 49 struct QPCIDevice 50 { 51 QPCIBus *bus; 52 int devfn; 53 bool msix_enabled; 54 void *msix_table; 55 void *msix_pba; 56 }; 57 58 void qpci_device_foreach(QPCIBus *bus, int vendor_id, int device_id, 59 void (*func)(QPCIDevice *dev, int devfn, void *data), 60 void *data); 61 QPCIDevice *qpci_device_find(QPCIBus *bus, int devfn); 62 63 void qpci_device_enable(QPCIDevice *dev); 64 uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id); 65 void qpci_msix_enable(QPCIDevice *dev); 66 void qpci_msix_disable(QPCIDevice *dev); 67 bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry); 68 bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry); 69 uint16_t qpci_msix_table_size(QPCIDevice *dev); 70 71 uint8_t qpci_config_readb(QPCIDevice *dev, uint8_t offset); 72 uint16_t qpci_config_readw(QPCIDevice *dev, uint8_t offset); 73 uint32_t qpci_config_readl(QPCIDevice *dev, uint8_t offset); 74 75 void qpci_config_writeb(QPCIDevice *dev, uint8_t offset, uint8_t value); 76 void qpci_config_writew(QPCIDevice *dev, uint8_t offset, uint16_t value); 77 void qpci_config_writel(QPCIDevice *dev, uint8_t offset, uint32_t value); 78 79 uint8_t qpci_io_readb(QPCIDevice *dev, void *data); 80 uint16_t qpci_io_readw(QPCIDevice *dev, void *data); 81 uint32_t qpci_io_readl(QPCIDevice *dev, void *data); 82 83 void qpci_io_writeb(QPCIDevice *dev, void *data, uint8_t value); 84 void qpci_io_writew(QPCIDevice *dev, void *data, uint16_t value); 85 void qpci_io_writel(QPCIDevice *dev, void *data, uint32_t value); 86 87 void *qpci_iomap(QPCIDevice *dev, int barno, uint64_t *sizeptr); 88 void qpci_iounmap(QPCIDevice *dev, void *data); 89 90 #endif 91