On Mon, 5 Nov 2018 12:03:10 +0100
David Hildenbrand <da...@redhat.com> wrote:
> I fail to see why this is useful as we require MSIX always and
> completely fail adding a device.
>
> Signed-off-by: David Hildenbrand <da...@redhat.com>
> ---
> hw/s390x/s390-pci-bus.c | 2 --
> hw/s390x/s390-pci-bus.h | 1 -
> 2 files changed, 3 deletions(-)
>
> diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
> index e1b14b131b..1eaae3aca6 100644
> --- a/hw/s390x/s390-pci-bus.c
> +++ b/hw/s390x/s390-pci-bus.c
> @@ -745,7 +745,6 @@ static int s390_pci_msix_init(S390PCIBusDevice *pbdev)
>
> pos = pci_find_capability(pbdev->pdev, PCI_CAP_ID_MSIX);
> if (!pos) {
> - pbdev->msix.available = false;
> return -1;
> }
>
> @@ -761,7 +760,6 @@ static int s390_pci_msix_init(S390PCIBusDevice *pbdev)
> pbdev->msix.pba_bar = pba & PCI_MSIX_FLAGS_BIRMASK;
> pbdev->msix.pba_offset = pba & ~PCI_MSIX_FLAGS_BIRMASK;
> pbdev->msix.entries = (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1;
> - pbdev->msix.available = true;
>
> name = g_strdup_printf("msix-s390-%04x", pbdev->uid);
> memory_region_init_io(&pbdev->msix_notify_mr, OBJECT(pbdev),
> diff --git a/hw/s390x/s390-pci-bus.h b/hw/s390x/s390-pci-bus.h
> index 1f7f9b5814..f47a0f2da5 100644
> --- a/hw/s390x/s390-pci-bus.h
> +++ b/hw/s390x/s390-pci-bus.h
> @@ -252,7 +252,6 @@ typedef struct ChscSeiNt2Res {
> } QEMU_PACKED ChscSeiNt2Res;
>
> typedef struct S390MsixInfo {
> - bool available;
> uint8_t table_bar;
> uint8_t pba_bar;
> uint16_t entries;
OK, so that was a write-only variable? :)
Question for the IBMers: is there any change we might have a different
implementation not relying on msi-x in the future?
