Re: Keystone Issue

[CodeWiz2280 <codewiz2280@xxxxxxxxx>]

On Fri, Jun 5, 2020 at 8:47 AM Bertrand Marquis
<Bertrand.Marquis@xxxxxxx> wrote:
>
>
>
> > On 5 Jun 2020, at 13:42, CodeWiz2280 <codewiz2280@xxxxxxxxx> wrote:
> >
> > On Fri, Jun 5, 2020 at 8:30 AM Julien Grall <julien@xxxxxxx> wrote:
> >>
> >> Hi,
> >>
> >> On 05/06/2020 13:25, CodeWiz2280 wrote:
> >>> The Keystone uses the netcp driver, which has interrupts from 40-79
> >>> listed in the device tree (arch/arm/boot/keystone-k2e-netcp.dtsi).
> >>> I'm using the same device tree between my non-xen standalone kernel
> >>> and my dom0 kernel booted by xen.  In the standalone (non-xen) kernel
> >>> the ethernet works fine, but I don't see any of its interrupts in the
> >>> output of /proc/iomem.  I'm not seeing them in /proc/iomem when
> >>> running dom0 under Xen either.  When booting with Xen I get this
> >>> behavior where the ifconfig output shows 1 RX message and 1 TX
> >>> message, and then nothing else.
> >>
> >> I am not sure whether this is a typo in the e-mail. /proc/iomem is
> >> listing the list of the MMIO regions. You want to use /proc/interrupts.
> >>
> >> Can you confirm which path you are dumping?
> > Yes, that was a typo.  Sorry about that.  I meant that I am dumping
> > /proc/interrupts and do not
> > see them under the non-xen kernel or xen booted dom0.
>
> Could you post both /proc/interrupts content ?

Standalone non-xen kernel (Ethernet works)
# cat /proc/interrupts
           CPU0       CPU1       CPU2       CPU3
 17:          0          0          0          0     GICv2  29 Level
  arch_timer
 18:       9856       1202        457        650     GICv2  30 Level
  arch_timer
 21:          0          0          0          0     GICv2 142 Edge
  timer-keystone
 22:          0          0          0          0     GICv2  52 Edge      arm-pmu
 23:          0          0          0          0     GICv2  53 Edge      arm-pmu
 24:          0          0          0          0     GICv2  54 Edge      arm-pmu
 25:          0          0          0          0     GICv2  55 Edge      arm-pmu
 26:          0          0          0          0     GICv2  36 Edge
  26202a0.keystone_irq
 27:       1435          0          0          0     GICv2 309 Edge      ttyS0
 29:          0          0          0          0     GICv2 315 Edge
  2530000.i2c
 30:          1          0          0          0     GICv2 318 Edge
  2530400.i2c
 31:          0          0          0          0     GICv2 321 Edge
  2530800.i2c
 32:         69          0          0          0     GICv2 324 Edge
  21000400.spi
 33:          0          0          0          0     GICv2 328 Edge
  21000600.spi
 34:          0          0          0          0     GICv2 332 Edge
  21000800.spi
 70:          0          0          0          0     GICv2 417 Edge
  ks-pcie-error-irq
 79:          0          0          0          0   PCI-MSI   0 Edge
  PCIe PME, aerdrv
 88:         57          0          0          0     GICv2  80 Level
  hwqueue-528
 89:         57          0          0          0     GICv2  81 Level
  hwqueue-529
 90:         47          0          0          0     GICv2  82 Level
  hwqueue-530
 91:         41          0          0          0     GICv2  83 Level
  hwqueue-531
IPI0:          0          0          0          0  CPU wakeup interrupts
IPI1:          0          0          0          0  Timer broadcast interrupts
IPI2:        730        988       1058        937  Rescheduling interrupts
IPI3:          2          3          4          6  Function call interrupts
IPI4:          0          0          0          0  CPU stop interrupts
IPI5:          0          0          0          0  IRQ work interrupts
IPI6:          0          0          0          0  completion interrupts

Xen dom0 (Ethernet stops)
# cat /proc/interrupts
           CPU0
 18:      10380     GIC-0  27 Level     arch_timer
 19:          0     GIC-0 142 Edge      timer-keystone
 20:         88     GIC-0  16 Level     events
 21:          0   xen-dyn     Edge    -event     xenbus
 22:          0     GIC-0  36 Edge      26202a0.keystone_irq
 23:          1     GIC-0 312 Edge      ttyS0
 25:          1     GIC-0 318 Edge
 27:          1     GIC-0 324 Edge      21000400.spi
 28:          0     GIC-0 328 Edge      21000600.spi
 29:          0     GIC-0 332 Edge      21000800.spi
 65:          0     GIC-0 417 Edge      ks-pcie-error-irq
 74:          0   PCI-MSI   0 Edge      PCIe PME, aerdrv
 83:          1     GIC-0  80 Level     hwqueue-528
 84:          1     GIC-0  81 Level     hwqueue-529
 85:          1     GIC-0  82 Level     hwqueue-530
 86:          1     GIC-0  83 Level     hwqueue-531
115:         87   xen-dyn     Edge    -virq      hvc_console
IPI0:          0  CPU wakeup interrupts
IPI1:          0  Timer broadcast interrupts
IPI2:          0  Rescheduling interrupts
IPI3:          0  Function call interrupts
IPI4:          0  CPU stop interrupts
IPI5:          0  IRQ work interrupts
IPI6:          0  completion interrupts
Err:          0

>
> Cheers
> Bertrand
>