[PATCH 1/7] conf: Add NFS disk protocol

[Peter Krempa]

On Tue, Dec 29, 2020 at 15:21:23 -0600, Ryan Gahagan wrote:
> Per Issue 90, Libvirt does not support attaching an NFS disk even though
> QEMU has added support for it. This series of patches seeks to implement
> this support in Libvirt and begins by adding in flags for an NFS disk.
> 
> Signed-off-by: Ryan Gahagan <rgahagan at cs.utexas.edu>
> ---
>  src/libxl/libxl_conf.c    | 1 +
>  src/libxl/xen_xl.c        | 1 +
>  src/qemu/qemu_block.c     | 3 +++
>  src/qemu/qemu_command.c   | 1 +
>  src/qemu/qemu_domain.c    | 2 ++
>  src/qemu/qemu_snapshot.c  | 3 +++
>  src/util/virstoragefile.c | 6 ++++++
>  src/util/virstoragefile.h | 1 +
>  8 files changed, 18 insertions(+)

[...]

> diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
> index fac93118fd..103dade0e7 100644
> --- a/src/util/virstoragefile.c
> +++ b/src/util/virstoragefile.c

[...]

> @@ -4627,6 +4629,10 @@ virStorageSourceNetworkDefaultPort(virStorageNetProtocol protocol)
>          case VIR_STORAGE_NET_PROTOCOL_VXHS:
>              return 9999;
>  
> +        case VIR_STORAGE_NET_PROTOCOL_NFS:
> +            /* Per https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/4/html/reference_guide/ch-nfs */
> +            return 2049;

I don't think we want to add a default port since the qemu code will not
accept it at all.