On Wed, Jun 08, 2011 at 06:21:48PM +0200, Jan Kiszka wrote:
> There is no point in pushing this burden to the devices, they may rather
> forget to call them (like intel-hda and ahci ATM). Instead, reset
> functions are now called from pci_device_reset and pci_bridge_reset.
> They do nothing if the MSI/MSI-X is not in use.
>
> CC: Alexander Graf <ag...@suse.de>
> CC: Gerd Hoffmann <kra...@redhat.com>
> CC: Isaku Yamahata <yamah...@valinux.co.jp>
> Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
> ---
> hw/ioh3420.c | 2 +-
> hw/pci.c | 5 +++++
> hw/pci_bridge.c | 4 ++++
> hw/virtio-pci.c | 1 -
> hw/xio3130_downstream.c | 2 +-
> hw/xio3130_upstream.c | 1 -
> 6 files changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/hw/ioh3420.c b/hw/ioh3420.c
> index 95adf09..73bc55f 100644
> --- a/hw/ioh3420.c
> +++ b/hw/ioh3420.c
> @@ -81,7 +81,7 @@ static void ioh3420_write_config(PCIDevice *d,
> static void ioh3420_reset(DeviceState *qdev)
> {
> PCIDevice *d = DO_UPCAST(PCIDevice, qdev, qdev);
> - msi_reset(d);
> +
> ioh3420_aer_vector_update(d);
> pcie_cap_root_reset(d);
> pcie_cap_deverr_reset(d);
> diff --git a/hw/pci.c b/hw/pci.c
> index 1d297d6..967f812 100644
> --- a/hw/pci.c
> +++ b/hw/pci.c
> @@ -31,6 +31,8 @@
> #include "loader.h"
> #include "qemu-objects.h"
> #include "range.h"
> +#include "msi.h"
> +#include "msix.h"
>
> //#define DEBUG_PCI
> #ifdef DEBUG_PCI
> @@ -191,6 +193,9 @@ void pci_device_reset(PCIDevice *dev)
> }
> }
> pci_update_mappings(dev);
> +
> + msi_reset(dev);
> + msix_reset(dev);
> }
>
> /*
I am reluctant to add this dependency in pci.c:
this goes against the efforts to modularise the
pci subsystem. As I see it, pci.c should really only handle the common
header. Instead I would like to add pci_caps.c and have
that call out to all the capabilities (not just reset, same
applies to other caps really).
I started doing that, if no one beats me to it,
I'll try to dust off that patch and post it next week.
> diff --git a/hw/pci_bridge.c b/hw/pci_bridge.c
> index 464d897..3951252 100644
> --- a/hw/pci_bridge.c
> +++ b/hw/pci_bridge.c
> @@ -32,6 +32,8 @@
> #include "pci_bridge.h"
> #include "pci_internals.h"
> #include "range.h"
> +#include "msi.h"
> +#include "msix.h"
>
> /* PCI bridge subsystem vendor ID helper functions */
> #define PCI_SSVID_SIZEOF 8
> @@ -224,6 +226,8 @@ void pci_bridge_reset(DeviceState *qdev)
> {
> PCIDevice *dev = DO_UPCAST(PCIDevice, qdev, qdev);
> pci_bridge_reset_reg(dev);
> + msi_reset(dev);
> + msix_reset(dev);
> }
>
> /* default qdev initialization function for PCI-to-PCI bridge */
> diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
> index c19629d..075d657 100644
> --- a/hw/virtio-pci.c
> +++ b/hw/virtio-pci.c
> @@ -310,7 +310,6 @@ static void virtio_pci_reset(DeviceState *d)
> VirtIOPCIProxy *proxy = container_of(d, VirtIOPCIProxy, pci_dev.qdev);
> virtio_pci_stop_ioeventfd(proxy);
> virtio_reset(proxy->vdev);
> - msix_reset(&proxy->pci_dev);
> proxy->flags &= ~VIRTIO_PCI_FLAG_BUS_MASTER_BUG;
> }
>
> diff --git a/hw/xio3130_downstream.c b/hw/xio3130_downstream.c
> index 5aa6a6b..a587c3e 100644
> --- a/hw/xio3130_downstream.c
> +++ b/hw/xio3130_downstream.c
> @@ -48,7 +48,7 @@ static void xio3130_downstream_write_config(PCIDevice *d,
> uint32_t address,
> static void xio3130_downstream_reset(DeviceState *qdev)
> {
> PCIDevice *d = DO_UPCAST(PCIDevice, qdev, qdev);
> - msi_reset(d);
> +
> pcie_cap_deverr_reset(d);
> pcie_cap_slot_reset(d);
> pcie_cap_ari_reset(d);
> diff --git a/hw/xio3130_upstream.c b/hw/xio3130_upstream.c
> index a7640f5..9d75449 100644
> --- a/hw/xio3130_upstream.c
> +++ b/hw/xio3130_upstream.c
> @@ -47,7 +47,6 @@ static void xio3130_upstream_write_config(PCIDevice *d,
> uint32_t address,
> static void xio3130_upstream_reset(DeviceState *qdev)
> {
> PCIDevice *d = DO_UPCAST(PCIDevice, qdev, qdev);
> - msi_reset(d);
> pci_bridge_reset(qdev);
> pcie_cap_deverr_reset(d);
> }
> --
> 1.7.1
