* Question about why doing VFIO RESET after device open
@ 2024-05-06 7:37 Chenbo Xia
0 siblings, 0 replies; only message in thread
From: Chenbo Xia @ 2024-05-06 7:37 UTC (permalink / raw)
To: dev, Anatoly Burakov, jerinjacobk, nipun.gupta
Cc: NBU-Contact-Thomas Monjalon (EXTERNAL), niketkandya
Hi,
I am not sure why we are calling ioctl(vfio_dev_fd, VFIO_DEVICE_RESET) in pci_rte_vfio_setup_device()
, which is after opening the VFIO device fd. As I see in linux kernel, opening the vfio device fd will
trigger the device reset and put device into clean state. Another VFIO_DEVICE_RESET seems not needed?
Could anyone help confirm or correct me?
There was also a related question in community two years ago:
https://mails.dpdk.org/archives/dev/2022-September/251640.html
Thanks,
Chenbo
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