On 4/21/2020 6:17 PM, Christoph Hellwig wrote:
On Fri, Mar 27, 2020 at 08:15:33PM +0300, Max Gurtovoy wrote:
From: Israel Rukshin <israelr@xxxxxxxxxxxx>
Preparation for adding metadata (T10-PI) over fabric support. This will
allow end-to-end protection information passthrough and validation for
NVMe over Fabric.
So actually - for PCIe we enable PI by default. Not sure why RDMA would
be any different? If we have a switch to turn it off we probably want
it work similar (can't be the same due to the lack of connect) for PCIe
as well.
For PCI we use a format command to configure metadata. In fabrics we can
choose doing it in the connect command and we can also choose to have
"protected" controllers and "non-protected" controllers.
I don't think it's all or nothing case, and configuration using nvme-cli
(or other tool) seems reasonable and flexible.
