Re: [Qemu-devel] [PATCH v2 13/22] hw/pvrdma: Make sure PCI function 0 is vmxnet3

[Marcel Apfelbaum <marcel.apfelbaum@gmail.com>]

On 11/8/18 6:08 PM, Yuval Shaia wrote:
> Guest driver enforces it, we should also.
>
> Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
> ---
>   hw/rdma/vmw/pvrdma.h      | 2 ++
>   hw/rdma/vmw/pvrdma_main.c | 3 +++
>   2 files changed, 5 insertions(+)
>
> diff --git a/hw/rdma/vmw/pvrdma.h b/hw/rdma/vmw/pvrdma.h
> index b019cb843a..10a3c4fb7c 100644
> --- a/hw/rdma/vmw/pvrdma.h
> +++ b/hw/rdma/vmw/pvrdma.h
> @@ -20,6 +20,7 @@
>   #include "hw/pci/pci.h"
>   #include "hw/pci/msix.h"
>   #include "chardev/char-fe.h"
> +#include "hw/net/vmxnet3_defs.h"
>   
>   #include "../rdma_backend_defs.h"
>   #include "../rdma_rm_defs.h"
> @@ -85,6 +86,7 @@ typedef struct PVRDMADev {
>       RdmaBackendDev backend_dev;
>       RdmaDeviceResources rdma_dev_res;
>       CharBackend mad_chr;
> +    VMXNET3State *func0;
>   } PVRDMADev;
>   #define PVRDMA_DEV(dev) OBJECT_CHECK(PVRDMADev, (dev), PVRDMA_HW_NAME)
>   
> diff --git a/hw/rdma/vmw/pvrdma_main.c b/hw/rdma/vmw/pvrdma_main.c
> index ac8c092db0..fa6468d221 100644
> --- a/hw/rdma/vmw/pvrdma_main.c
> +++ b/hw/rdma/vmw/pvrdma_main.c
> @@ -576,6 +576,9 @@ static void pvrdma_realize(PCIDevice *pdev, Error **errp)
>           return;
>       }
>   
> +    /* Break if not vmxnet3 device in slot 0 */
> +    dev->func0 = VMXNET3(pci_get_function_0(pdev));
> +

I don't see the error code flow in case VMXNET3 is not func 0.
Am I missing something?


Thanks,
Marcel

>       memdev_root = object_resolve_path("/objects", NULL);
>       if (memdev_root) {
>           object_child_foreach(memdev_root, pvrdma_check_ram_shared, &ram_shared);