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From: Russell King - ARM Linux admin <linux@armlinux•org.uk>
To: ѽ҉ᶬḳ℠ <vtol@gmx•net>
Cc: Andrew Lunn <andrew@lunn•ch>, netdev@vger•kernel.org
Subject: Re: [drivers/net/phy/sfp] intermittent failure in state machine checks
Date: Fri, 10 Jan 2020 12:53:05 +0000	[thread overview]
Message-ID: <20200110125305.GB25745@shell.armlinux.org.uk> (raw)
In-Reply-To: <7b6f143a-7bdb-90be-00f6-9e81e21bde4e@gmx.net>

On Fri, Jan 10, 2020 at 12:45:52PM +0000, ѽ҉ᶬḳ℠ wrote:
> On 10/01/2020 11:44, Russell King - ARM Linux admin wrote:
> > 
> > Which is also indicating everything is correct.  When the problem
> > occurs, check the state of the signals again as close as possible
> > to the event - it depends how long the transceiver keeps it
> > asserted.  You will probably find tx-fault is indicating
> > "in  hi IRQ".
> just discovered userland - gpioinfo pca9538 - which seems more verbose
> 
> gpiochip2 - 8 lines:
>         line   0:      unnamed   "tx-fault"   input  active-high [used]
>         line   1:      unnamed "tx-disable"  output  active-high [used]
>         line   2:      unnamed "rate-select0" input active-high [used]
>         line   3:      unnamed        "los"   input  active-high [used]
>         line   4:      unnamed   "mod-def0"   input   active-low [used]
>         line   5:      unnamed       unused   input  active-high
>         line   6:      unnamed       unused   input  active-high
>         line   7:      unnamed       unused   input  active-high
> 
> The above is depicting the current state with the module working, i.e. being
> online. Will do some testing and report back, not sure yet how to keep a
> close watch relating to the failure events.

However, that doesn't give the current levels of the inputs, so it's
useless for the purpose I've asked for.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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According to speedtest.net: 11.9Mbps down 500kbps up

  reply	other threads:[~2020-01-10 12:53 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-09 13:47 [drivers/net/phy/sfp] intermittent failure in state machine checks ѽ҉ᶬḳ℠
2020-01-09 14:41 ` Andrew Lunn
2020-01-09 15:03   ` ѽ҉ᶬḳ℠
2020-01-09 15:58     ` Russell King - ARM Linux admin
2020-01-09 17:35       ` ѽ҉ᶬḳ℠
2020-01-09 17:43         ` Russell King - ARM Linux admin
2020-01-09 19:01           ` ѽ҉ᶬḳ℠
2020-01-09 19:42             ` ѽ҉ᶬḳ℠
2020-01-09 21:38               ` Russell King - ARM Linux admin
2020-01-09 21:59               ` Russell King - ARM Linux admin
2020-01-09 22:40                 ` ѽ҉ᶬḳ℠
2020-01-09 23:10                   ` Russell King - ARM Linux admin
2020-01-09 23:50                     ` ѽ҉ᶬḳ℠
2020-01-10  0:18                       ` ѽ҉ᶬḳ℠
2020-01-10 10:26                         ` Russell King - ARM Linux admin
2020-01-10  9:27                       ` Russell King - ARM Linux admin
2020-01-10  9:50                         ` ѽ҉ᶬḳ℠
2020-01-10 10:19                           ` ѽ҉ᶬḳ℠
2020-01-10 11:46                             ` Russell King - ARM Linux admin
2020-01-10 13:22                             ` Andrew Lunn
2020-01-10 13:38                               ` ѽ҉ᶬḳ℠
2020-01-10 11:44                           ` Russell King - ARM Linux admin
2020-01-10 12:45                             ` ѽ҉ᶬḳ℠
2020-01-10 12:53                               ` Russell King - ARM Linux admin [this message]
2020-01-10 15:02                                 ` ѽ҉ᶬḳ℠
2020-01-10 15:09                                   ` Russell King - ARM Linux admin
2020-01-10 15:45                                     ` ѽ҉ᶬḳ℠
2020-01-10 16:32                                       ` Russell King - ARM Linux admin
2020-01-10 16:53                                         ` ѽ҉ᶬḳ℠
2020-01-10 17:08                                           ` Russell King - ARM Linux admin
2020-01-10 17:19                                             ` ѽ҉ᶬḳ℠
2020-01-10 17:38                                               ` Russell King - ARM Linux admin
2020-01-10 18:44                                                 ` ѽ҉ᶬḳ℠
2020-01-10 19:01                                                   ` Russell King - ARM Linux admin
2020-01-10 19:36                                                     ` ѽ҉ᶬḳ℠
2020-01-10 19:55                                                       ` Russell King - ARM Linux admin
2020-01-10 20:27                                                         ` ѽ҉ᶬḳ℠
2020-01-10 19:23                                                   ` Andrew Lunn
2020-01-11 12:58                                                     ` ѽ҉ᶬḳ℠
2020-01-09 21:34             ` Russell King - ARM Linux admin

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