Re: [PATCH] Add support for PCIe SSD status LED management

[stuart hayes <stuart.w.hayes@gmail.com>]

On 4/16/2021 2:20 PM, Stuart Hayes wrote:
> This patch adds support for the PCIe SSD Status LED Management
> interface, as described in the "_DSM Additions for PCIe SSD Status LED
> Management" ECN to the PCI Firmware Specification revision 3.2.
> 
> It will add a single (led_classdev) LED for any PCIe device that has the
> relevant _DSM. The ten possible status states are exposed using
> attributes current_states and supported_states. Reading current_states
> (and supported_states) will show the definition and value of each bit:
> 
>> cat /sys/class/leds/0000:88:00.0::pcie_ssd_status/supported_states
> ok                              0x0004 [ ]
> locate                          0x0008 [*]
> fail                            0x0010 [ ]
> rebuild                         0x0020 [ ]
> pfa                             0x0040 [ ]
> hotspare                        0x0080 [ ]
> criticalarray                   0x0100 [ ]
> failedarray                     0x0200 [ ]
> invaliddevice                   0x0400 [ ]
> disabled                        0x0800 [ ]
> --
> supported_states = 0x0008
> 
>> cat /sys/class/leds/0000:88:00.0::pcie_ssd_status/current_states
> locate                          0x0008 [ ]
> --
> current_states = 0x0000
> 
> Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com>

Any comments?  I think I sent at a bad time originally.  Thanks!