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Re: [PATCH RESEND 1/2] hw/vfio/pci-quirks: Resolve redundant property ge


From: Bernhard Beschow
Subject: Re: [PATCH RESEND 1/2] hw/vfio/pci-quirks: Resolve redundant property getters
Date: Wed, 23 Mar 2022 23:37:35 +0000

Am 21. März 2022 13:06:29 UTC schrieb "Philippe Mathieu-Daudé" 
<philippe.mathieu.daude@gmail.com>:
>On 21/3/22 11:57, Bernhard Beschow wrote:
>> Am 1. März 2022 22:52:19 UTC schrieb Bernhard Beschow <shentey@gmail.com>:
>>> The QOM API already provides getters for uint64 and uint32 values, so reuse
>>> them.
>>>
>>> Signed-off-by: Bernhard Beschow <shentey@gmail.com>
>>> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
>>> ---
>>> hw/vfio/pci-quirks.c | 34 +++++++++-------------------------
>>> 1 file changed, 9 insertions(+), 25 deletions(-)
>>>
>>> diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
>>> index 0cf69a8c6d..f0147a050a 100644
>>> --- a/hw/vfio/pci-quirks.c
>>> +++ b/hw/vfio/pci-quirks.c
>>> @@ -1565,22 +1565,6 @@ static int vfio_add_nv_gpudirect_cap(VFIOPCIDevice 
>>> *vdev, Error **errp)
>>>      return 0;
>>> }
>>>
>>> -static void vfio_pci_nvlink2_get_tgt(Object *obj, Visitor *v,
>>> -                                     const char *name,
>>> -                                     void *opaque, Error **errp)
>>> -{
>>> -    uint64_t tgt = (uintptr_t) opaque;
>>> -    visit_type_uint64(v, name, &tgt, errp);
>>> -}
>>> -
>>> -static void vfio_pci_nvlink2_get_link_speed(Object *obj, Visitor *v,
>>> -                                                 const char *name,
>>> -                                                 void *opaque, Error 
>>> **errp)
>>> -{
>>> -    uint32_t link_speed = (uint32_t)(uintptr_t) opaque;
>>> -    visit_type_uint32(v, name, &link_speed, errp);
>>> -}
>>> -
>>> int vfio_pci_nvidia_v100_ram_init(VFIOPCIDevice *vdev, Error **errp)
>>> {
>>>      int ret;
>>> @@ -1618,9 +1602,9 @@ int vfio_pci_nvidia_v100_ram_init(VFIOPCIDevice 
>>> *vdev, Error **errp)
>>>                                 nv2reg->size, p);
>>>      QLIST_INSERT_HEAD(&vdev->bars[0].quirks, quirk, next);
>>>
>>> -    object_property_add(OBJECT(vdev), "nvlink2-tgt", "uint64",
>>> -                        vfio_pci_nvlink2_get_tgt, NULL, NULL,
>>> -                        (void *) (uintptr_t) cap->tgt);
>>> +    object_property_add_uint64_ptr(OBJECT(vdev), "nvlink2-tgt",
>>> +                                   (uint64_t *) &cap->tgt,
>>> +                                   OBJ_PROP_FLAG_READ);
>>>      trace_vfio_pci_nvidia_gpu_setup_quirk(vdev->vbasedev.name, cap->tgt,
>>>                                            nv2reg->size);
>>> free_exit:
>>> @@ -1679,15 +1663,15 @@ int vfio_pci_nvlink2_init(VFIOPCIDevice *vdev, 
>>> Error **errp)
>>>          QLIST_INSERT_HEAD(&vdev->bars[0].quirks, quirk, next);
>>>      }
>>>
>>> -    object_property_add(OBJECT(vdev), "nvlink2-tgt", "uint64",
>>> -                        vfio_pci_nvlink2_get_tgt, NULL, NULL,
>>> -                        (void *) (uintptr_t) captgt->tgt);
>>> +    object_property_add_uint64_ptr(OBJECT(vdev), "nvlink2-tgt",
>>> +                                   (uint64_t *) &captgt->tgt,
>>> +                                   OBJ_PROP_FLAG_READ);
>>>      trace_vfio_pci_nvlink2_setup_quirk_ssatgt(vdev->vbasedev.name, 
>>> captgt->tgt,
>>>                                                atsdreg->size);
>>>
>>> -    object_property_add(OBJECT(vdev), "nvlink2-link-speed", "uint32",
>>> -                        vfio_pci_nvlink2_get_link_speed, NULL, NULL,
>>> -                        (void *) (uintptr_t) capspeed->link_speed);
>>> +    object_property_add_uint32_ptr(OBJECT(vdev), "nvlink2-link-speed",
>>> +                                   &capspeed->link_speed,
>>> +                                   OBJ_PROP_FLAG_READ);
>>>      trace_vfio_pci_nvlink2_setup_quirk_lnkspd(vdev->vbasedev.name,
>>>                                                capspeed->link_speed);
>>> free_exit:
>> 
>> Ping
>> 
>> @Alistair: When resending, I accidently added a Reviewed-by with your name 
>> here which I asked to be ignored *after* you re-acked patch 2/2. In case you 
>> intended to ack this patch as well your voice would be needed again.
>
>FWIW I expect these patches to get merged via the qemu-trivial@ tree
>once the 7.1 development window opens.

Excellent!

Best regards,
Bernhard




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