On 11/30/2021 21:39, Jakub Kicinski wrote:

On Tue, 30 Nov 2021 17:07:02 +0200 Shay Drory wrote:

quoted

  - Patch-1 Provides I/O EQ size resource which enables to save
    up to 128KB.
  - Patch-2 Provides event EQ size resource which enables to save up to
    512KB.

Why is something allocated in host memory a device resource? 🤔

EQ resides in the host memory. It is RO for host driver, RW by device.
When interrupt is generated EQ entry is placed by device and read by driver.
It indicates about what event occurred such as CQE, async and more.

Did you analyze if others may need this?

So far no feedback by other vendors.
The resources are implemented in generic way, if other vendors would
like to implement them.