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Hi Anton,</div>
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We have a HSC sensor to control the power to a module and that has been controlled by GPIO [No i2c<span style="font-family:sans-serif"> bus or busses</span>].<br>
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Thanks,</div>
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Priyatharshan P</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Anton Kachalov <rnouse@google.com><br>
<b>Sent:</b> 08 October 2020 19:15<br>
<b>To:</b> P. Priyatharshan <PriyatharshanP@hcl.com><br>
<b>Cc:</b> Vijay Khemka <vijaykhemka@fb.com>; openbmc@lists.ozlabs.org <openbmc@lists.ozlabs.org>; ed@tanous.net <ed@tanous.net>; Velumani T-ERS,HCLTech <velumanit@hcl.com><br>
<b>Subject:</b> Re: 12v slot AC Support in x86-power-control</font>
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<div>Hi, <span style="font-family:sans-serif">Priyatharshan</span></div>
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<div dir="auto"><font face="sans-serif">This feature sound like adding more chassisX objects. Do you have separate sensors (e</font>.g. on i2c<span style="font-family:sans-serif"> bus or busses) per each board in the slots?</span></div>
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<div dir="ltr" class="x_gmail_attr">On Thu, Oct 8, 2020, 15:15 P. Priyatharshan <<a href="mailto:PriyatharshanP@hcl.com">PriyatharshanP@hcl.com</a>> wrote:<br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Thanks Vijay/Patrick for your comments.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt"><br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">The feature we are working is different from vijay's feature.</div>
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<p style="font-size:11pt; font-family:Calibri,sans-serif; margin:0">Out platform is multi host system and we have the host as FRU and it can be plugged in to a slot. The slot has an option to control slot power and this can be used for a AC cycle.</p>
<p style="font-size:11pt; font-family:Calibri,sans-serif; margin:0">We proposed a design to add the slot power control in the x86-power-control.The earlier discussion can be found in the below link.
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt"><a href="https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.ozlabs.org%2Fpipermail%2Fopenbmc%2F2020-August%2F022481.html&data=02%7C01%7CPriyatharshanP%40hcl.com%7Cf860afb53aff482d5ce508d86b907d6a%7C189de737c93a4f5a8b686f4ca9941912%7C0%7C0%7C637377615609744524&sdata=vvML%2B9O%2Bt5szee5X%2B6gW6H%2FPGYzoZAWEoOOVY2%2FxY%2B0%3D&reserved=0" originalsrc="https://lists.ozlabs.org/pipermail/openbmc/2020-August/022481.html" shash="qunpao4PQEsydXyXE6xHJaJnA0w29SX75eiQKbERxF9iAvQuB4VOyQvpAGZsphO7ILfw2cv33jiTn0+wMmbanFyXLfi5364JEntYd5v2EAKA9UOrFQxnSoApYPYntSqU8IKGP2vdmw3UWmQ6Gu3phuMGjkAP7NHVC50QVL5l0kc=" target="_blank" rel="noreferrer">https://lists.ozlabs.org/pipermail/openbmc/2020-August/022481.html</a></div>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">ed tanous,</div>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">I will create a clear document on when to use this slot power control feature.</div>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Thanks,</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Priyatharshan P<br>
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<div id="x_m_5471233420626625869divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Vijay Khemka <<a href="mailto:vijaykhemka@fb.com" target="_blank" rel="noreferrer">vijaykhemka@fb.com</a>><br>
<b>Sent:</b> 08 October 2020 06:11<br>
<b>To:</b> P. Priyatharshan <<a href="mailto:PriyatharshanP@hcl.com" target="_blank" rel="noreferrer">PriyatharshanP@hcl.com</a>>;
<a href="mailto:openbmc@lists.ozlabs.org" target="_blank" rel="noreferrer">openbmc@lists.ozlabs.org</a> <<a href="mailto:openbmc@lists.ozlabs.org" target="_blank" rel="noreferrer">openbmc@lists.ozlabs.org</a>>;
<a href="mailto:ed@tanous.net" target="_blank" rel="noreferrer">ed@tanous.net</a> <<a href="mailto:ed@tanous.net" target="_blank" rel="noreferrer">ed@tanous.net</a>><br>
<b>Cc:</b> Velumani T-ERS,HCLTech <<a href="mailto:velumanit@hcl.com" target="_blank" rel="noreferrer">velumanit@hcl.com</a>><br>
<b>Subject:</b> Re: 12v slot AC Support in x86-power-control</font>
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open attachments as it may be a Phishing email, which can steal your Information and compromise your Computer.]</span></p>
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<p>Hi Priyatharshan,</p>
<p>Chassis system reset is for removing AC power for the whole chassis and it is already supported in x86-power-control. I am working on enabling this feature in redfish. I am not sure how it is related to your new features. If it is related then you can also
define system_reset target unit.</p>
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<p>Regards</p>
<p>-Vijay</p>
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<p><b><span style="font-size:12.0pt; color:black">From: </span></b><span style="font-size:12.0pt; color:black">"P. Priyatharshan" <<a href="mailto:PriyatharshanP@hcl.com" target="_blank" rel="noreferrer">PriyatharshanP@hcl.com</a>><br>
<b>Date: </b>Tuesday, October 6, 2020 at 9:43 AM<br>
<b>To: </b>"<a href="mailto:openbmc@lists.ozlabs.org" target="_blank" rel="noreferrer">openbmc@lists.ozlabs.org</a>" <<a href="mailto:openbmc@lists.ozlabs.org" target="_blank" rel="noreferrer">openbmc@lists.ozlabs.org</a>>, Vijay Khemka <<a href="mailto:vijaykhemka@fb.com" target="_blank" rel="noreferrer">vijaykhemka@fb.com</a>>,
"<a href="mailto:ed@tanous.net" target="_blank" rel="noreferrer">ed@tanous.net</a>" <<a href="mailto:ed@tanous.net" target="_blank" rel="noreferrer">ed@tanous.net</a>><br>
<b>Cc: </b>"Velumani T-ERS,HCLTech" <<a href="mailto:velumanit@hcl.com" target="_blank" rel="noreferrer">velumanit@hcl.com</a>><br>
<b>Subject: </b>12v slot AC Support in x86-power-control</span></p>
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<p><span style="font-size:12.0pt; color:black">Hi Vijay, </span></p>
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<p><span style="font-size:12.0pt; color:black">I am working on a patch to support 12v slot AC cycle in x86-power-control.This can be enabled by configuring slotACPowerName in json config file.Since you are also working on similar kind of feature in x86-power-control,
I would like bring up this discussion on mailing list to understand how these two features, and the design you proposed for chassis reset are intended to work together.Kindly go through my design changes below and share your thoughts.</span></p>
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<p><span style="font-size:12.0pt; color:black">I have modified the existing /xyz/openbmc_project/state/chassis0 object to implement 12V On, Off, and Power Cycle for system which has 12V Slot power support.</span></p>
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<p><span style="font-size:12.0pt; color:black"> </span></p>
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<p><span style="font-size:12.0pt; color:black">If slotACPowerName is disabled and if,</span></p>
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<p><span style="font-size:12.0pt; color:black">RequestedPowerTransition = "xyz.openbmc_project.State.Chassis.Transition.Off" then poweroff [existing functionality not changed]</span></p>
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<p><span style="font-size:12.0pt; color:black">RequestedPowerTransition = "xyz.openbmc_project.State.Chassis.Transition.On" then powerOn [existing functionality not changed]</span></p>
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<p><span style="font-size:12.0pt; color:black">RequestedPowerTransition = "xyz.openbmc_project.State.Chassis.Transition.PowerCycle" then PowerCycle [existing functionality not changed]</span></p>
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<p><span style="font-size:12.0pt; color:black"> </span></p>
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<p><span style="font-size:12.0pt; color:black">events will be called.</span></p>
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<p><span style="font-size:12.0pt; color:black">If slotACPowerName is enabled and if,</span></p>
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<p><span style="font-size:12.0pt; color:black">RequestedPowerTransition = "xyz.openbmc_project.State.Chassis.Transition.Off" then 12V Ac Slot Off</span></p>
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<p><span style="font-size:12.0pt; color:black"> </span></p>
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<p><span style="font-size:12.0pt; color:black">RequestedPowerTransition = "xyz.openbmc_project.State.Chassis.Transition.On" then 12V Ac Slot On
</span></p>
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<p><span style="font-size:12.0pt; color:black"> </span></p>
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<p><span style="font-size:12.0pt; color:black">RequestedPowerTransition = "xyz.openbmc_project.State.Chassis.Transition.PowerCycle" then 12V Ac Slot PowerCycle
</span></p>
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<p><span style="font-size:12.0pt; color:black"> </span></p>
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<p><span style="font-size:12.0pt; color:black">events will be called.</span></p>
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<p><span style="font-size:12.0pt; color:black">Thanks,</span></p>
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<p><span style="font-size:12.0pt; color:black">Priyatharshan P</span></p>
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