Re: [PATCH 4/7] s390x/pci: use a PCI Group structure

[Cornelia Huck <cohuck@redhat.com>]

On Sat, 19 Sep 2020 11:34:29 -0400
Matthew Rosato <mjrosato@linux.ibm.com> wrote:

> From: Pierre Morel <pmorel@linux.ibm.com>
> 
> We use a S390PCIGroup structure to hold the information related to a
> zPCI Function group.
> 
> This allows us to be ready to support multiple groups and to retrieve
> the group information from the host.
> 
> Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
> Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
> ---
>  hw/s390x/s390-pci-bus.c  | 42 ++++++++++++++++++++++++++++++++++++++++++
>  hw/s390x/s390-pci-bus.h  | 10 ++++++++++
>  hw/s390x/s390-pci-inst.c | 22 +++++++++++++---------
>  3 files changed, 65 insertions(+), 9 deletions(-)
> 
> diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
> index 92146a2..3015d86 100644
> --- a/hw/s390x/s390-pci-bus.c
> +++ b/hw/s390x/s390-pci-bus.c
> @@ -737,6 +737,46 @@ static void s390_pci_iommu_free(S390pciState *s, PCIBus *bus, int32_t devfn)
>      object_unref(OBJECT(iommu));
>  }
>  
> +static S390PCIGroup *s390_grp_create(int ug)

I think you made the identifiers a bit too compact :)
s390_group_create() is not that long, and I have no idea what the 'ug'
(ugh :) parameter is supposed to mean.

> +{
> +    S390PCIGroup *grp;

group?

> +    S390pciState *s = s390_get_phb();
> +
> +    grp = g_new0(S390PCIGroup, 1);
> +    grp->ug = ug;
> +    QTAILQ_INSERT_TAIL(&s->zpci_grps, grp, link);

zpci_groups? I think you get the idea :)

> +    return grp;
> +}

(...)

No objection to the patch in general.