Re: [PATCH v5 3/3] vfio/nvgrace-gpu: Check the HBM training and C2C link status
From: Ankit Agrawal
Date: Fri Jan 24 2025 - 12:53:39 EST
>> +static int nvgrace_gpu_wait_device_ready(struct pci_dev *pdev)
>> +{
>> + unsigned long timeout = jiffies + msecs_to_jiffies(POLL_TIMEOUT_MS);
>> + void __iomem *io;
>> + int ret = -ETIME;
>> +
>> + ret = pci_enable_device(pdev);
>> + if (ret)
>> + return ret;
>> +
>> + ret = pci_request_selected_regions(pdev, 1 << 0, "vfio-pci");
>
> All the overhead of enabling the device and requesting the region, only
> to undo it around this simple test is unfortunate, but I think correct.
Yeah, thanks for guiding through that.
> Even though this is only briefly taken, I'd suggest using KBUILD_MODNAME
> there rather than "vfio-pci" to differentiate from the core code.
> Thanks,
>
> Alex
Understood, will make the change.