[Qemu-devel] Re: [PATCH 09/26] dec_pci: simplify dec_pci.c by using pci_p2pbr

[Blue Swirl <blauwirbel@gmail.com>]

On Wed, Mar 16, 2011 at 11:29 AM, Isaku Yamahata <yamahata@valinux.co.jp> wrote:
> apply pci_p2pbr for dec_pci.c.
>
> Cc: Michael S. Tsirkin <mst@redhat.com>
> Cc: Blue Swirl <blauwirbel@gmail.com>
> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
> ---
>  hw/dec_pci.c |   49 ++++++++++++++-----------------------------------
>  1 files changed, 14 insertions(+), 35 deletions(-)
>
> diff --git a/hw/dec_pci.c b/hw/dec_pci.c
> index 3cc4f04..fbd1363 100644
> --- a/hw/dec_pci.c
> +++ b/hw/dec_pci.c
> @@ -29,6 +29,7 @@
>  #include "pci_host.h"
>  #include "pci_bridge.h"
>  #include "pci_internals.h"
> +#include "pci_p2pbr.h"
>
>  /* debug DEC */
>  //#define DEBUG_DEC
> @@ -50,42 +51,21 @@ static int dec_map_irq(void *opaque, PCIDevice *pci_dev, int irq_num)
>     return irq_num;
>  }
>
> -static int dec_21154_initfn(PCIDevice *dev)
> -{
> -    int rc;
> -
> -    rc = pci_bridge_initfn(dev);
> -    if (rc < 0) {
> -        return rc;
> -    }
> -
> -    pci_config_set_vendor_id(dev->config, PCI_VENDOR_ID_DEC);
> -    pci_config_set_device_id(dev->config, PCI_DEVICE_ID_DEC_21154);
> -    return 0;
> -}
> -
> -static PCIDeviceInfo dec_21154_pci_bridge_info = {
> -    .qdev.name = "dec-21154-p2p-bridge",
> -    .qdev.desc = "DEC 21154 PCI-PCI bridge",
> -    .qdev.size = sizeof(PCIBridge),
> -    .qdev.vmsd = &vmstate_pci_device,
> -    .qdev.reset = pci_bridge_reset,
> -    .init = dec_21154_initfn,
> -    .exit = pci_bridge_exitfn,
> -    .config_write = pci_bridge_write_config,
> -    .is_bridge = 1,
> -};
> -
>  PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn)
>  {
> -    PCIDevice *dev;
> -    PCIBridge *br;
> -
> -    dev = pci_create_multifunction(parent_bus, devfn, false,
> -                                   "dec-21154-p2p-bridge");
> -    br = DO_UPCAST(PCIBridge, dev, dev);
> -    pci_bridge_map_irq(br, "DEC 21154 PCI-PCI bridge", dec_map_irq);
> -    qdev_init_nofail(&dev->qdev);
> +    const PCIP2PBridgeInit init = {
> +        .bus = parent_bus,
> +        .devfn = devfn,
> +        .multifunction = false,
> +
> +        .bus_name = "DEC 21154 PCI-PCI bridge",
> +        .map_irq = dec_map_irq,
> +    };
> +    const PCIP2PBridgeProp prop = {
> +        .vendor_id = PCI_VENDOR_ID_DEC,
> +        .device_id = PCI_DEVICE_ID_DEC_21154,
> +    };

I'd make the above structures static.

> +    PCIBridge *br = pci_p2pbr_create_simple(&init, &prop);
>     return pci_bridge_get_sec_bus(br);
>  }
>
> @@ -127,7 +107,6 @@ static void dec_register_devices(void)
>     sysbus_register_dev("dec-21154", sizeof(DECState),
>                         pci_dec_21154_init_device);
>     pci_qdev_register(&dec_21154_pci_host_info);
> -    pci_qdev_register(&dec_21154_pci_bridge_info);
>  }
>
>  device_init(dec_register_devices)
> --
> 1.7.1.1
>
>