On 8/23/2016 1:10 PM, Keith Busch wrote:
> It's superficially related to pciehp only because that's the only module
> that touches Slot Control, and this particular hardware interprets
> pciehp's control commands differently than the specification.
>
> Since the hardware can't be changed, is there any guidance you can
> recommend we follow to appropriately fence off pciehp from attention and
> power indicator control? I initially attempted the least invasive method,
> but I'm happy to explore other possibilities.
Most other non-standard HW require an LED driver for hotplug in the kernel.
IBM has one. It sound like you need another one.
static struct hotplug_slot_ops cpci_hotplug_slot_ops = {
.enable_slot = enable_slot,
.disable_slot = disable_slot,
.set_attention_status = set_attention_status,
.get_power_status = get_power_status,
.get_attention_status = get_attention_status,
.get_adapter_status = get_adapter_status,
.get_latch_status = get_latch_status,
};
cpci_hotplug_core.c and ibmphp_core.c.
--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
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