Re: [Qemu-devel] [PATCH 13/13] hw/rdma: Save pci dev in backend_dev

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

On 07/16/2018 10:40 AM, Yuval Shaia wrote:
> This field is not initialized - fix it.

^^^^^^^^ What field ? Please use a more readable message.

Regarding the subject, maybe you can use "cache pci_dev"
or "add a reference to pci_dev " instead of "save".

Thanks,
Marcel

>
> Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
> ---
>   hw/rdma/rdma_backend.c    | 6 +++++-
>   hw/rdma/rdma_backend.h    | 2 +-
>   hw/rdma/vmw/pvrdma_main.c | 2 +-
>   3 files changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/hw/rdma/rdma_backend.c b/hw/rdma/rdma_backend.c
> index d29acc505b..d7a4bbd91f 100644
> --- a/hw/rdma/rdma_backend.c
> +++ b/hw/rdma/rdma_backend.c
> @@ -744,7 +744,7 @@ static int init_device_caps(RdmaBackendDev *backend_dev,
>       return 0;
>   }
>   
> -int rdma_backend_init(RdmaBackendDev *backend_dev,
> +int rdma_backend_init(RdmaBackendDev *backend_dev, PCIDevice *pdev,
>                         RdmaDeviceResources *rdma_dev_res,
>                         const char *backend_device_name, uint8_t port_num,
>                         uint8_t backend_gid_idx, struct ibv_device_attr *dev_attr,
> @@ -756,6 +756,10 @@ int rdma_backend_init(RdmaBackendDev *backend_dev,
>       struct ibv_device **dev_list;
>       struct ibv_port_attr port_attr;
>   
> +    memset(backend_dev, 0, sizeof(*backend_dev));
> +
> +    backend_dev->dev = pdev;
> +
>       backend_dev->backend_gid_idx = backend_gid_idx;
>       backend_dev->port_num = port_num;
>       backend_dev->rdma_dev_res = rdma_dev_res;
> diff --git a/hw/rdma/rdma_backend.h b/hw/rdma/rdma_backend.h
> index 3049a73962..86e8fe8ab6 100644
> --- a/hw/rdma/rdma_backend.h
> +++ b/hw/rdma/rdma_backend.h
> @@ -46,7 +46,7 @@ static inline uint32_t rdma_backend_mr_rkey(const RdmaBackendMR *mr)
>       return mr->ibmr ? mr->ibmr->rkey : 0;
>   }
>   
> -int rdma_backend_init(RdmaBackendDev *backend_dev,
> +int rdma_backend_init(RdmaBackendDev *backend_dev, PCIDevice *pdev,
>                         RdmaDeviceResources *rdma_dev_res,
>                         const char *backend_device_name, uint8_t port_num,
>                         uint8_t backend_gid_idx, struct ibv_device_attr *dev_attr,
> diff --git a/hw/rdma/vmw/pvrdma_main.c b/hw/rdma/vmw/pvrdma_main.c
> index 3d448bffc4..ca5fa8d981 100644
> --- a/hw/rdma/vmw/pvrdma_main.c
> +++ b/hw/rdma/vmw/pvrdma_main.c
> @@ -611,7 +611,7 @@ static void pvrdma_realize(PCIDevice *pdev, Error **errp)
>           goto out;
>       }
>   
> -    rc = rdma_backend_init(&dev->backend_dev, &dev->rdma_dev_res,
> +    rc = rdma_backend_init(&dev->backend_dev, pdev, &dev->rdma_dev_res,
>                              dev->backend_device_name, dev->backend_port_num,
>                              dev->backend_gid_idx, &dev->dev_attr, errp);
>       if (rc) {