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From: "Ramón Nordin Rodriguez" <ramon.nordin.rodriguez@ferroamp.se>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Piergiorgio Beruto <Pier.Beruto@onsemi.com>,
	"Parthiban.Veerasooran@microchip.com"
	<Parthiban.Veerasooran@microchip.com>,
	"davem@davemloft.net" <davem@davemloft.net>,
	"edumazet@google.com" <edumazet@google.com>,
	"kuba@kernel.org" <kuba@kernel.org>,
	"pabeni@redhat.com" <pabeni@redhat.com>,
	"horms@kernel.org" <horms@kernel.org>,
	"saeedm@nvidia.com" <saeedm@nvidia.com>,
	"anthony.l.nguyen@intel.com" <anthony.l.nguyen@intel.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"corbet@lwn.net" <corbet@lwn.net>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"krzysztof.kozlowski+dt@linaro.org"
	<krzysztof.kozlowski+dt@linaro.org>,
	"conor+dt@kernel.org" <conor+dt@kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"Horatiu.Vultur@microchip.com" <Horatiu.Vultur@microchip.com>,
	"ruanjinjie@huawei.com" <ruanjinjie@huawei.com>,
	"Steen.Hegelund@microchip.com" <Steen.Hegelund@microchip.com>,
	"vladimir.oltean@nxp.com" <vladimir.oltean@nxp.com>,
	"UNGLinuxDriver@microchip.com" <UNGLinuxDriver@microchip.com>,
	"Thorsten.Kummermehr@microchip.com"
	<Thorsten.Kummermehr@microchip.com>,
	Selvamani Rajagopal <Selvamani.Rajagopal@onsemi.com>,
	"Nicolas.Ferre@microchip.com" <Nicolas.Ferre@microchip.com>,
	"benjamin.bigler@bernformulastudent.ch"
	<benjamin.bigler@bernformulastudent.ch>
Subject: Re: [PATCH net-next v4 05/12] net: ethernet: oa_tc6: implement error interrupts unmasking
Date: Wed, 15 May 2024 23:45:15 +0200	[thread overview]
Message-ID: <ZkUs6-QC8RypslF0@minibuilder> (raw)
In-Reply-To: <81170ef6-2b16-4d7f-85b1-4c3fecdc8853@lunn.ch>

> > Good input. I'll add some instrumentation/stats for how many jiffies
> > have elapsed between releases of the worker thread and for the irq
> > handler. I can probably find a gpio to toggle as well if it's really
> > tight timings.
> 
> What might be more interesting is the interrupt status registers. Is
> there a bit always set which the driver is not clearly correctly?
> 

Ah great point, I'll dump the irq status registers when things go awry.

> You can try printing the values. But that might upset the timing so
> you cannot reproduce the issue.
> 
> If the printk() does upset the timing, what i have done before is
> allocate an array of u32 values. Write the interrupt status into it,
> looping around when you get to the end of the array. And then use
> debugfs_create_u32_array() to export the array in /sys/kernel/debugfs.
> Trigger the problem and then look at the values.

Good tip, sounds like the exact strategy I need. Appreciate the hands on
suggestions!

> 
> > > Is this your dual device board? Do you have both devices on the same
> > > SPI bus? Do they share interrupt lines?
> > > 
> > 
> > It's on the dual device board, the macphys are using separate spi buses,
> > one chip shares the bus with another spi device, but the other is the
> > only tenant on the bus.
> > 
> > No device shares an irq line.
> 
> I was just wondering how your setup differs so you can trigger the
> issue, but others have not been able to reproduce it. It might be
> another clue as to what is going on. I don't think you need to do
> anything with respect to this, its just information to keep in mind.
> 

My typical setup is weird for sure, I skip the initramfs and load a
kernel and dtb into ram (which means I don't have DMA, due to missing fw),
but I'm in the habit of occasionally flashing and running a 'normal system'
every once in a while for verifcation.

I can't think of anything on top of my head that would set my system in
a unique position. But since I don't get the failure when I have a UDP
multicast running I'm guessing different networking daemons might affect
things, in this case we're running systemd-networkd and I manually set
an ipv4 address on the interfaces.

R

  reply	other threads:[~2024-05-15 21:45 UTC|newest]

Thread overview: 138+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-18 12:56 [PATCH net-next v4 00/12] Add support for OPEN Alliance 10BASE-T1x MACPHY Serial Interface Parthiban Veerasooran
2024-04-18 12:56 ` [PATCH net-next v4 01/12] Documentation: networking: add OPEN Alliance 10BASE-T1x MAC-PHY serial interface Parthiban Veerasooran
2024-04-28  9:33   ` Bagas Sanjaya
2024-04-29 11:31     ` Parthiban.Veerasooran
2024-04-29 16:17   ` Simon Horman
2024-04-30 11:30     ` Parthiban.Veerasooran
2024-04-18 12:56 ` [PATCH net-next v4 02/12] net: ethernet: oa_tc6: implement register write operation Parthiban Veerasooran
2024-04-22 23:48   ` Andrew Lunn
2024-04-23  4:38     ` Parthiban.Veerasooran
2024-04-23 23:14   ` Andrew Lunn
2024-04-26  5:55     ` Parthiban.Veerasooran
2024-04-29 16:36   ` Simon Horman
2024-04-30  8:14     ` Parthiban.Veerasooran
2024-04-18 12:56 ` [PATCH net-next v4 03/12] net: ethernet: oa_tc6: implement register read operation Parthiban Veerasooran
2024-04-23 23:17   ` Andrew Lunn
2024-04-26  5:56     ` Parthiban.Veerasooran
2024-04-18 12:56 ` [PATCH net-next v4 04/12] net: ethernet: oa_tc6: implement software reset Parthiban Veerasooran
2024-04-23 23:26   ` Andrew Lunn
2024-04-26  6:38     ` Parthiban.Veerasooran
2024-04-18 12:56 ` [PATCH net-next v4 05/12] net: ethernet: oa_tc6: implement error interrupts unmasking Parthiban Veerasooran
2024-04-23 23:27   ` Andrew Lunn
2024-04-27 19:52   ` Ramón Nordin Rodriguez
2024-04-27 21:17     ` Andrew Lunn
2024-04-27 21:55       ` Ramón Nordin Rodriguez
2024-04-28 14:48         ` Andrew Lunn
2024-04-28  9:54       ` Ramón Nordin Rodriguez
2024-04-28 14:59         ` Andrew Lunn
2024-04-28 22:04           ` Ramón Nordin Rodriguez
2024-05-01 18:29           ` Ramón Nordin Rodriguez
2024-05-01 19:58             ` Andrew Lunn
2024-05-01 20:07             ` Andrew Lunn
2024-05-02 10:10             ` Parthiban.Veerasooran
2024-05-02 10:19               ` Ramón Nordin Rodriguez
2024-05-03  7:10                 ` Parthiban.Veerasooran
2024-05-06  1:21                   ` Andrew Lunn
2024-05-06  6:47                     ` Piergiorgio Beruto
2024-05-07 12:44                       ` Ramón Nordin Rodriguez
2024-05-13  6:41                       ` Ramón Nordin Rodriguez
2024-05-13 13:00                         ` Andrew Lunn
2024-05-13 13:50                           ` Ramón Nordin Rodriguez
2024-05-13 14:04                             ` Andrew Lunn
2024-05-15 21:45                               ` Ramón Nordin Rodriguez [this message]
2024-05-14  4:46                             ` Parthiban.Veerasooran
2024-05-15 21:48                               ` Ramón Nordin Rodriguez
2024-05-17  9:38                                 ` Parthiban.Veerasooran
2024-05-17 12:43                                   ` Ramón Nordin Rodriguez
2024-05-24 18:12                                   ` Ramón Nordin Rodriguez
2024-05-24 18:31                                     ` Andrew Lunn
2024-05-24 18:49                                       ` Piergiorgio Beruto
2024-05-27  9:30                                       ` Parthiban.Veerasooran
2024-05-27  8:38                                     ` Parthiban.Veerasooran
2024-04-18 12:56 ` [PATCH net-next v4 06/12] net: ethernet: oa_tc6: implement internal PHY initialization Parthiban Veerasooran
2024-04-23 23:48   ` Andrew Lunn
2024-04-26 13:17     ` Parthiban.Veerasooran
2024-04-18 12:56 ` [PATCH net-next v4 07/12] net: ethernet: oa_tc6: enable open alliance tc6 data communication Parthiban Veerasooran
2024-04-23 23:49   ` Andrew Lunn
2024-04-18 12:56 ` [PATCH net-next v4 08/12] net: ethernet: oa_tc6: implement transmit path to transfer tx ethernet frames Parthiban Veerasooran
2024-04-24  0:02   ` Andrew Lunn
2024-04-26 13:19     ` Parthiban.Veerasooran
2024-04-18 12:56 ` [PATCH net-next v4 09/12] net: ethernet: oa_tc6: implement receive path to receive rx " Parthiban Veerasooran
2024-04-24  0:08   ` Andrew Lunn
2024-04-26 13:45     ` Parthiban.Veerasooran
2024-04-26 18:13       ` Andrew Lunn
2024-04-29  6:13         ` Parthiban.Veerasooran
2024-04-27 20:02   ` Ramón Nordin Rodriguez
2024-04-29  8:32     ` Parthiban.Veerasooran
2024-04-29 10:45       ` Ramón Nordin Rodriguez
2024-04-18 12:56 ` [PATCH net-next v4 10/12] net: ethernet: oa_tc6: implement mac-phy interrupt Parthiban Veerasooran
2024-04-24  0:10   ` Andrew Lunn
2024-04-18 12:56 ` [PATCH net-next v4 11/12] microchip: lan865x: add driver support for Microchip's LAN865X MAC-PHY Parthiban Veerasooran
2024-04-24  0:27   ` Andrew Lunn
2024-04-26 13:32     ` Parthiban.Veerasooran
2024-04-26 18:14       ` Andrew Lunn
2024-04-29  6:13         ` Parthiban.Veerasooran
2024-04-27 19:19   ` Ramón Nordin Rodriguez
2024-04-27 19:57     ` Conor Dooley
2024-04-27 20:13       ` Ramón Nordin Rodriguez
2024-04-27 20:22         ` Conor Dooley
2024-04-27 21:09           ` Ramón Nordin Rodriguez
2024-04-29  9:47       ` Parthiban.Veerasooran
2024-04-29 12:09         ` Andrew Lunn
2024-04-30 13:30           ` Parthiban.Veerasooran
2024-04-30 16:55             ` Conor Dooley
2024-05-02  5:56               ` Parthiban.Veerasooran
2024-04-27 20:40     ` Andrew Lunn
2024-04-27 21:06       ` Ramón Nordin Rodriguez
2024-04-28 14:18         ` Andrew Lunn
2024-04-27 19:35   ` Ramón Nordin Rodriguez
2024-04-27 20:58     ` Andrew Lunn
2024-04-27 21:29       ` Ramón Nordin Rodriguez
2024-04-28 14:25         ` Andrew Lunn
2024-04-28 22:00           ` Ramón Nordin Rodriguez
2024-04-18 12:56 ` [PATCH net-next v4 12/12] dt-bindings: net: add Microchip's LAN865X 10BASE-T1S MACPHY Parthiban Veerasooran
2024-04-18 15:39   ` Conor Dooley
2024-04-22  3:59     ` Parthiban.Veerasooran
2024-04-22 15:50       ` Conor Dooley
2024-04-23  3:27         ` Parthiban.Veerasooran
2024-04-22 20:07 ` [PATCH net-next v4 00/12] Add support for OPEN Alliance 10BASE-T1x MACPHY Serial Interface Andrew Lunn
2024-04-22 20:08 ` Andrew Lunn
2024-04-22 23:23   ` Andrew Lunn
2024-05-08 13:05     ` Parthiban.Veerasooran
2024-05-08 17:04       ` Andrew Lunn
2024-05-09 13:04         ` Parthiban.Veerasooran
2024-05-09 20:39           ` Andrew Lunn
2024-05-10 11:22             ` Parthiban.Veerasooran
2024-05-24 20:52               ` Selvamani Rajagopal
2024-05-24 21:27                 ` Andrew Lunn
2024-05-24 21:45                   ` Piergiorgio Beruto
2024-05-24 21:54                     ` Andrew Lunn
2024-05-24 22:08                       ` Piergiorgio Beruto
2024-05-25 14:46                         ` Andrew Lunn
2024-05-30  9:43                       ` Piergiorgio Beruto
2024-05-30 13:06                         ` Andrew Lunn
2024-05-30 21:37                           ` Piergiorgio Beruto
2024-05-31  0:33                             ` Andrew Lunn
2024-05-31 12:13                         ` Parthiban.Veerasooran
2024-05-31 12:37                           ` Andrew Lunn
2024-05-31 15:13                             ` Piergiorgio Beruto
2024-06-03  6:55                               ` Parthiban.Veerasooran
2024-06-05 21:40                                 ` Selvamani Rajagopal
2024-06-05 23:43                                   ` Andrew Lunn
2024-06-06  0:35                                     ` Selvamani Rajagopal
2024-06-06 13:12                                       ` Andrew Lunn
2024-06-07  4:40                                         ` Selvamani Rajagopal
2024-06-03  6:55                             ` Parthiban.Veerasooran
2024-04-22 23:43 ` Andrew Lunn
2024-04-28 21:16 ` [PATCH net-next v4 13/12] net: lan865x: optional hardware reset Ramón Nordin Rodriguez
2024-04-28 23:17   ` Andrew Lunn
2024-04-29 10:42     ` Ramón Nordin Rodriguez
2024-04-29  6:09   ` Parthiban.Veerasooran
2024-04-29 10:38     ` Ramón Nordin Rodriguez
2024-04-29 12:19       ` Andrew Lunn
2024-04-30  8:04         ` Ramón Nordin Rodriguez
2024-04-30 13:30         ` Parthiban.Veerasooran
2024-04-30 14:14           ` Andrew Lunn
2024-05-02 10:10             ` Parthiban.Veerasooran
2024-04-29  6:09   ` Krzysztof Kozlowski
2024-04-29 10:44     ` Ramón Nordin Rodriguez

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