HPE 1920-8G-PoE+ 180W (JG922A) PoE problems - after cold boot

[Janusz Dziedzic]

pon., 21 paź 2024 o 01:44 Evan Jobling via openwrt-devel
<openwrt-devel at lists.openwrt.org> napisał(a):
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> ---------- Forwarded message ----------
> From: Evan Jobling <evan.jobling at mslsc.com.au>
> To: Janusz Dziedzic <janusz.dziedzic at gmail.com>, OpenWrt Development List <openwrt-devel at lists.openwrt.org>
> Cc:
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> Date: Mon, 21 Oct 2024 10:42:48 +1100
> Subject: Re: HPE 1920-8G-PoE+ 180W (JG922A) PoE problems - after cold boot
> Hi there!
>
> Great to see another JG922A user!
>
> I'll be able to get you an answer eventually on
> snapshot as I'm still working on fixing default
> fan behaviour for JG922A.
>
> >
> > Seems, don't deliver power - does it ever works before?
> Let's start with confirming your PoE config?
>
> It "worked for me" back around august.
> Given this is a reboot issue I could have missed
> it though?
>
> Also have a look at joining the forum, there's a
> thread which is quite active regarding realtek target
> support in the developer section.
>
> Please note the layout is reversed?
> I think it also outlined how to configure PoE in
> the git commit.
>
> There are also notes I added to the wiki.
> i.e. what I have as my /etc/config/poe configuration.
>
> https://openwrt.org/toh/hpe/1920-8g_jg922a
>

Great, Thanks Evan.
Default config/poe is wrong for this switch - set id 1 for lan1 -
after change to 8:
root at OpenWrt:~# ubus call poe info
{
       "firmware": "v20.3",
       "mcu": "Nuvoton M05xx LAN Microcontroller",
       "budget": 170.000000,
       "consumption": 5.800000,
       "ports": {
               "lan1": {
                       "priority": 2,
                       "mode": "PoE+",
                       "status": "Delivering power",
                       "consumption": 5.800000
               }
       }
}

This is my OpenWrt One - after id change works correctly.
Seems we start with wrong default conf - and PoE disabled.


BTW, seems community config this using ethtool:
Enable kernel CONFIG_PSE_CONTROLLER =y

# ethtool --show-pse eth0
PSE attributes for eth0:
Clause 33 PSE Admin State: disabled
Clause 33 PSE Power Detection Status: disabled
# ethtool --set-pse eth0 c33-pse-admin-control enable
# ethtool --show-pse eth0
PSE attributes for eth0:
Clause 33 PSE Admin State: enabled
Clause 33 PSE Power Detection Status: delivering power

And fill:
static const struct pse_controller_ops pd692x0_ops = {
       .setup_pi_matrix = pd692x0_setup_pi_matrix,
       .ethtool_get_status = pd692x0_ethtool_get_status,
       .pi_enable = pd692x0_pi_enable,
       .pi_disable = pd692x0_pi_disable,
       .pi_is_enabled = pd692x0_pi_is_enabled,
       .pi_get_voltage = pd692x0_pi_get_voltage,
       .pi_get_current_limit = pd692x0_pi_get_current_limit,
       .pi_set_current_limit = pd692x0_pi_set_current_limit,
};

So, far I see two PSE controllers backends:
janusz at e850:~/github/linux-next/drivers/net/pse-pd$ ls
Kconfig  Makefile  pd692x0.c  pse_core.c  pse_regulator.c  tps23881.c
janusz at e850:~/github/linux-next/drivers/net/pse-pd$

Seems, we can skip realtek-poe package in the future and use ethtool :)

Anyway, thanks for help.

BR
Janusz