Re: [PATCH 1/4] s390/pci: stash version in the zpci_dev

Niklas Schnelle
2020-09-21T09:35:29Z

Hi Matthew,

On 9/19/20 5:28 PM, Matthew Rosato wrote:
> In preparation for passing the info on to vfio-pci devices, stash the
> supported PCI version for the target device in the zpci_dev.
>
> Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>

Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>

> ---
> arch/s390/include/asm/pci.h | 1 +
> arch/s390/pci/pci_clp.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
> index 99b92c3..882e233 100644
> --- a/arch/s390/include/asm/pci.h
> +++ b/arch/s390/include/asm/pci.h
> @@ -179,6 +179,7 @@ struct zpci_dev {
> atomic64_t mapped_pages;
> atomic64_t unmapped_pages;
>
> + u8 version;
> enum pci_bus_speed max_bus_speed;
>
> struct dentry *debugfs_dev;
> diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
> index 7e735f4..48bf316 100644
> --- a/arch/s390/pci/pci_clp.c
> +++ b/arch/s390/pci/pci_clp.c
> @@ -102,6 +102,7 @@ static void clp_store_query_pci_fngrp(struct zpci_dev *zdev,
> zdev->msi_addr = response->msia;
> zdev->max_msi = response->noi;
> zdev->fmb_update = response->mui;
> + zdev->version = response->version;
>
> switch (response->version) {
> case 1:
>