Re: dell rbu driver and FW_LOADER_USER_HELPER

Re: dell rbu driver and FW_LOADER_USER_HELPER

[Luis R. Rodriguez]

On Tue, Aug 26, 2014 at 07:09:46PM +0200, Luis R. Rodriguez wrote:
> When Christian tried removing the udev firmware loader
> it was detected that the Dell rbu driver still required
> use of FW_LOADER_USER_HELPER [0]. This driver needed
> reworking to not be tied to the firmware loader, curious
> if anyone has been working on that. Is the current
> implementation depending on that userspace identifies
> the required path to the file ? Why can't standard
> /lib/firmware/ paths be used ?
> 
> [0] http://lists.freedesktop.org/archives/systemd-devel/2014-May/019631.html

Well abhay_salunke@dell.com bounces. Who at Dell is maintaining this
driver now? Maybe Mario can help finding the right person?

  Luis

Re: dell rbu driver and FW_LOADER_USER_HELPER

[Tom Gundersen]

On Tue, Aug 26, 2014 at 7:14 PM, Luis R. Rodriguez <mcgrof@suse.com> wrote:
> On Tue, Aug 26, 2014 at 07:09:46PM +0200, Luis R. Rodriguez wrote:
>> When Christian tried removing the udev firmware loader
>> it was detected that the Dell rbu driver still required
>> use of FW_LOADER_USER_HELPER [0]. This driver needed
>> reworking to not be tied to the firmware loader, curious
>> if anyone has been working on that.

The rework is now upstream, but not yet released [1].

>> Is the current
>> implementation depending on that userspace identifies
>> the required path to the file ? Why can't standard
>> /lib/firmware/ paths be used ?

The dell driver dose not use rely on udev in userspace, nor the
/lib/firmware path. It has its own userspace component, which just
happens to reuse some of the infrastructure the udev firmware helper
used to use. This has now been split up, and as of 3.17 the firmware
loader can safely be removed from udev.

>> [0] http://lists.freedesktop.org/archives/systemd-devel/2014-May/019631.html
>
> Well abhay_salunke@dell.com bounces. Who at Dell is maintaining this
> driver now? Maybe Mario can help finding the right person?
>
>   Luis

[1]: <http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a1379e8748a5cfa3eb068f812d61bde849ef76c>

Re: dell rbu driver and FW_LOADER_USER_HELPER

[Mario Limonciello]

On 08/26/2014 12:20 PM, Tom Gundersen wrote:
> On Tue, Aug 26, 2014 at 7:14 PM, Luis R. Rodriguez<mcgrof@suse.com>  wrote:
> The rework is now upstream, but not yet released [1].
>
> The dell driver dose not use rely on udev in userspace, nor the
> /lib/firmware path. It has its own userspace component, which just
> happens to reuse some of the infrastructure the udev firmware helper
> used to use. This has now been split up, and as of 3.17 the firmware
> loader can safely be removed from udev.
>
> [1]:<http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a1379e8748a5cfa3eb068f812d61bde849ef76c>
Loop in Stuart Hayes and BB Singh.  RBU support is primarily used/supported on poweredge today, and they should be able to help comment and sort this out.