[RFC 0/3] Btrfs checksum offload

[Christoph Hellwig]

On Wed, Jan 29, 2025 at 11:03:36AM -0700, Keith Busch wrote:
> > away.  But we also lose integrity protection over the wire, which would
> > be unfortunate.
> 
> If the "wire" is only PCIe, I don't see why it matters. What kind of
> wire corruption gets undetected by the protocol's encoding and LCRC that
> would get caught by the host's CRC payload?

The "wire" could be anything.  And includes a little more than than
than the wire, like the entire host side driver stack and the device
data path between the phy and wherever in the stack the PI insert/strip
accelerator sits.