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[Qemu-devel] Re: [PATCH v2 5/5] pci_bridge: introduce pci bridge library
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] Re: [PATCH v2 5/5] pci_bridge: introduce pci bridge library. |
Date: |
Mon, 12 Jul 2010 15:10:00 +0300 |
User-agent: |
Mutt/1.5.20 (2009-12-10) |
On Mon, Jul 12, 2010 at 07:36:44PM +0900, Isaku Yamahata wrote:
> diff --git a/hw/pci_bridge.h b/hw/pci_bridge.h
> index ddb2c82..4697c7a 100644
> --- a/hw/pci_bridge.h
> +++ b/hw/pci_bridge.h
> @@ -29,13 +29,27 @@
> #include "pci.h"
>
> PCIDevice *pci_bridge_get_device(PCIBus *bus);
> +PCIBus *pci_bridge_get_sec_bus(PCIBridge *br);
>
> -pcibus_t pci_bridge_get_base(PCIDevice *bridge, uint8_t type);
> -pcibus_t pci_bridge_get_limit(PCIDevice *bridge, uint8_t type);
> +pcibus_t pci_bridge_get_base(const PCIDevice *bridge, uint8_t type);
> +pcibus_t pci_bridge_get_limit(const PCIDevice *bridge, uint8_t type);
>
> -PCIBus *pci_bridge_init(PCIBus *bus, int devfn, bool multifunction,
> - uint16_t vid, uint16_t did,
> - pci_map_irq_fn map_irq, const char *name);
> +void pci_bridge_write_config(PCIDevice *d,
> + uint32_t address, uint32_t val, int len);
> +void pci_bridge_reset_reg(PCIDevice *dev);
> +void pci_bridge_reset(DeviceState *qdev);
> +
> +int pci_bridge_initfn(PCIDevice *pci_dev);
> +int pci_bridge_exitfn(PCIDevice *pci_dev);
> +
> +void pci_bridge_qdev_register(PCIDeviceInfo *info);
> +
> +PCIBridge *pci_bridge_create(PCIBus *bus, int devfn, bool multifunction,
> + pci_map_irq_fn map_irq,
> + const char *name, const char *bus_name);
> +PCIBridge *pci_bridge_create_simple(PCIBus *bus, int devfn, bool
> multifunction,
> + pci_map_irq_fn map_irq,
> + const char *name, const char *bus_name);
The APIs leave much to be desired. _simple and regular are same? What does
_register do?
We really should just use qdev: Can't we use pci_qdev_register_many and
pci_create to create the bridge? Long term, all pci_create variants
should go and get replaced with qdev_create.
>
> #endif /* QEMU_PCI_BRIDGE_H */
> /*
> diff --git a/hw/pci_internals.h b/hw/pci_internals.h
> index fa844ab..6502f83 100644
> --- a/hw/pci_internals.h
> +++ b/hw/pci_internals.h
> @@ -30,11 +30,13 @@ struct PCIBus {
> int *irq_count;
> };
>
> -typedef struct {
> +struct PCIBridge {
> PCIDevice dev;
> +
> + /* private member */
> PCIBus sec_bus;
> - uint32_t vid;
> - uint32_t did;
> -} PCIBridge;
> + pci_map_irq_fn map_irq;
> + const char *bus_name;
> +};
>
> #endif /* QEMU_PCI_INTERNALS_H */
> diff --git a/qemu-common.h b/qemu-common.h
> index 3fb2f0b..d735235 100644
> --- a/qemu-common.h
> +++ b/qemu-common.h
> @@ -219,6 +219,7 @@ typedef struct PCIHostState PCIHostState;
> typedef struct PCIExpressHost PCIExpressHost;
> typedef struct PCIBus PCIBus;
> typedef struct PCIDevice PCIDevice;
> +typedef struct PCIBridge PCIBridge;
> typedef struct SerialState SerialState;
> typedef struct IRQState *qemu_irq;
> typedef struct PCMCIACardState PCMCIACardState;
> --
> 1.7.1.1
- [Qemu-devel] [PATCH v2 0/5] pci: split out bridge code into pci_bridge and make it library, Isaku Yamahata, 2010/07/12
- [Qemu-devel] [PATCH v2 3/5] pci_bridge: rename PCIBridge::bus -> PCIBridge::sec_bus., Isaku Yamahata, 2010/07/12
- [Qemu-devel] [PATCH v2 1/5] pci: move out pci internal structures, PCIBus, PCIBridge, and pci_bus_info., Isaku Yamahata, 2010/07/12
- [Qemu-devel] [PATCH v2 4/5] pci_bridge: clean up: remove pci_{register, unregister}_secondary_bus(), Isaku Yamahata, 2010/07/12
- [Qemu-devel] [PATCH v2 5/5] pci_bridge: introduce pci bridge library., Isaku Yamahata, 2010/07/12
- [Qemu-devel] Re: [PATCH v2 5/5] pci_bridge: introduce pci bridge library.,
Michael S. Tsirkin <=
- [Qemu-devel] [PATCH v2 2/5] pci/bridge: split out pci bridge code into pci_bridge.c from pci.c, Isaku Yamahata, 2010/07/12
- [Qemu-devel] Re: [PATCH v2 0/5] pci: split out bridge code into pci_bridge and make it library, Michael S. Tsirkin, 2010/07/12