Re: [PATCH RFC v2 0/3] cxl: Multi-headed Single Logical Device (MHSLD)

[Jonathan Cameron <Jonathan.Cameron@huawei.com>]

On Wed, 24 Apr 2024 13:04:05 -0700
Svetly Todorov <svetly.todorov@memverge.com> wrote:

> MHSLDs allow multiple hosts to access dynamic capacity on a single
> backing device. This complicates DC management because adds,
> removals, and accesses need to be vetted such that hosts don't
> stomp on each other's data.
> 
> This patchset proposes a set of hooks to be called in cxl_type3.c
> when each of the above events happens. The results of the hooks
> can be used to prevent illegal DC operations in the corresponding
> cxl_* functions. 

Hi,

I had a quick go at applying this to my gitlab tree cxl staging tree
to make it more generally available.  It unfortunately needs some updates
for the change to Extent Groups in the most recent DCD code.

Whilst I can probably sort that, it's going to happen particularly soon.

I'll be pushing a new tree shortly if you have time to rebase.

Jonathan