Re: [PATCH v2] hw/block/nvme: use locally assigned QEMU IEEE OUI

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 2/9/21 11:45 AM, Klaus Jensen wrote:
> From: Gollu Appalanaidu <anaidu.gollu@samsung.com>
> 
> Commit 6eb7a071292a ("hw/block/nvme: change controller pci id") changed
> the controller to use a Red Hat assigned PCI Device and Vendor ID, but
> did not change the IEEE OUI away from the Intel IEEE OUI.
> 
> Fix that and use the locally assigned QEMU IEEE OUI instead if the
> `use-intel-id` parameter is not explicitly set. Also reverse the Intel
> IEEE OUI bytes.
> 
> Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
> Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
> ---
> 
> v2: drop telemetry and add a check on the use_intel_id parameter.
> 
>  hw/block/nvme.c | 14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/block/nvme.c b/hw/block/nvme.c
> index c2f0c88fbf39..870e9d8e1c17 100644
> --- a/hw/block/nvme.c
> +++ b/hw/block/nvme.c
> @@ -4685,9 +4685,17 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pci_dev)
>      id->cntlid = cpu_to_le16(n->cntlid);
>  
>      id->rab = 6;
> -    id->ieee[0] = 0x00;
> -    id->ieee[1] = 0x02;
> -    id->ieee[2] = 0xb3;
> +
> +    if (n->params.use_intel_id) {
> +        id->ieee[0] = 0xb3;
> +        id->ieee[1] = 0x02;
> +        id->ieee[2] = 0x00;
> +    } else {
> +        id->ieee[0] = 0x00;
> +        id->ieee[1] = 0x54;
> +        id->ieee[2] = 0x52;
> +    }

Correct.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Ideally we should have definitions and use them here and in
qemu_macaddr_default_if_unset() instead of this magic values.

> +
>      id->mdts = n->params.mdts;
>      id->ver = cpu_to_le32(NVME_SPEC_VER);
>      id->oacs = cpu_to_le16(0);
>