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From: 曾懷恩 <the@csie.io>
To: david.aldrich.ntml@gmail.com, users@dpdk.org
Subject: Re: [dpdk-users] IGB UIO vs i40e PMD ?
Date: Sat, 6 Mar 2021 21:30:03 +0800
Message-ID: <AB595FCF-6114-4C38-9A10-881F8FF350AB@csie.io> (raw)

IGB UIO is based on Linux userspace io.

The UIO mechanism make device memory in kernel can be mapped to a driver in userspace and programmer can program features in this driver.

Therefore there are 2 parts in UIO mechanism, one is a kernel module to register device to UIO(e.g. igb_uio.ko), the other one is the userspace driver(e.g. i40e_pmd)

vfio is different to UIO, but it also provides userspace driver functions to make userspace can access PCI device

             reply	other threads:[~2021-03-06 13:30 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-06 13:30 曾懷恩 [this message]
  -- strict thread matches above, loose matches on Subject: below --
2021-03-05 15:00 David Aldrich

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