Re: [PATCH 03/17] docs: pci: boot-interrupts.rst: improve html output

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On Tue, Mar 17, 2020 at 03:54:12PM +0100, Mauro Carvalho Chehab wrote:
> There are some warnings with this file:
> 
>     /Documentation/PCI/boot-interrupts.rst:42: WARNING: Unexpected indentation.
>     /Documentation/PCI/boot-interrupts.rst:52: WARNING: Block quote ends without a blank line; unexpected unindent.
>     /Documentation/PCI/boot-interrupts.rst:92: WARNING: Unexpected indentation.
>     /Documentation/PCI/boot-interrupts.rst:98: WARNING: Unexpected indentation.
>     /Documentation/PCI/boot-interrupts.rst:136: WARNING: Unexpected indentation.
> 
> It turns that this file conversion to ReST could be improved,
> in order to remove the warnings and provide a better output.
> 
> So, fix the warnings by adjusting blank lines, add a table and
> some list markups. Also, mark endnodes as such.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>

Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

> ---
>  Documentation/PCI/boot-interrupts.rst | 34 +++++++++++++++------------
>  1 file changed, 19 insertions(+), 15 deletions(-)
> 
> diff --git a/Documentation/PCI/boot-interrupts.rst b/Documentation/PCI/boot-interrupts.rst
> index d078ef3eb192..2ec70121bfca 100644
> --- a/Documentation/PCI/boot-interrupts.rst
> +++ b/Documentation/PCI/boot-interrupts.rst
> @@ -32,12 +32,13 @@ interrupt goes unhandled over time, they are tracked by the Linux kernel as
>  Spurious Interrupts. The IRQ will be disabled by the Linux kernel after it
>  reaches a specific count with the error "nobody cared". This disabled IRQ
>  now prevents valid usage by an existing interrupt which may happen to share
> -the IRQ line.
> +the IRQ line::
>  
>    irq 19: nobody cared (try booting with the "irqpoll" option)
>    CPU: 0 PID: 2988 Comm: irq/34-nipalk Tainted: 4.14.87-rt49-02410-g4a640ec-dirty #1
>    Hardware name: National Instruments NI PXIe-8880/NI PXIe-8880, BIOS 2.1.5f1 01/09/2020
>    Call Trace:
> +
>    <IRQ>
>     ? dump_stack+0x46/0x5e
>     ? __report_bad_irq+0x2e/0xb0
> @@ -85,15 +86,18 @@ Mitigations
>  The mitigations take the form of PCI quirks. The preference has been to
>  first identify and make use of a means to disable the routing to the PCH.
>  In such a case a quirk to disable boot interrupt generation can be
> -added.[1]
> +added. [1]_
>  
> -  Intel® 6300ESB I/O Controller Hub
> +Intel® 6300ESB I/O Controller Hub
>    Alternate Base Address Register:
>     BIE: Boot Interrupt Enable
> -	  0 = Boot interrupt is enabled.
> -	  1 = Boot interrupt is disabled.
>  
> -  Intel® Sandy Bridge through Sky Lake based Xeon servers:
> +	  ==  ===========================
> +	  0   Boot interrupt is enabled.
> +	  1   Boot interrupt is disabled.
> +	  ==  ===========================
> +
> +Intel® Sandy Bridge through Sky Lake based Xeon servers:
>    Coherent Interface Protocol Interrupt Control
>     dis_intx_route2pch/dis_intx_route2ich/dis_intx_route2dmi2:
>  	  When this bit is set. Local INTx messages received from the
> @@ -109,12 +113,12 @@ line by default.  Therefore, on chipsets where this INTx routing cannot be
>  disabled, the Linux kernel will reroute the valid interrupt to its legacy
>  interrupt. This redirection of the handler will prevent the occurrence of
>  the spurious interrupt detection which would ordinarily disable the IRQ
> -line due to excessive unhandled counts.[2]
> +line due to excessive unhandled counts. [2]_
>  
>  The config option X86_REROUTE_FOR_BROKEN_BOOT_IRQS exists to enable (or
>  disable) the redirection of the interrupt handler to the PCH interrupt
>  line. The option can be overridden by either pci=ioapicreroute or
> -pci=noioapicreroute.[3]
> +pci=noioapicreroute. [3]_
>  
>  
>  More Documentation
> @@ -127,19 +131,19 @@ into the evolution of its handling with chipsets.
>  Example of disabling of the boot interrupt
>  ------------------------------------------
>  
> -Intel® 6300ESB I/O Controller Hub (Document # 300641-004US)
> +      - Intel® 6300ESB I/O Controller Hub (Document # 300641-004US)
>  	5.7.3 Boot Interrupt
>  	https://www.intel.com/content/dam/doc/datasheet/6300esb-io-controller-hub-datasheet.pdf
>  
> -Intel® Xeon® Processor E5-1600/2400/2600/4600 v3 Product Families
> -Datasheet - Volume 2: Registers (Document # 330784-003)
> +      - Intel® Xeon® Processor E5-1600/2400/2600/4600 v3 Product Families
> +	Datasheet - Volume 2: Registers (Document # 330784-003)
>  	6.6.41 cipintrc Coherent Interface Protocol Interrupt Control
>  	https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/xeon-e5-v3-datasheet-vol-2.pdf
>  
>  Example of handler rerouting
>  ----------------------------
>  
> -Intel® 6700PXH 64-bit PCI Hub (Document # 302628)
> +      - Intel® 6700PXH 64-bit PCI Hub (Document # 302628)
>  	2.15.2 PCI Express Legacy INTx Support and Boot Interrupt
>  	https://www.intel.com/content/dam/doc/datasheet/6700pxh-64-bit-pci-hub-datasheet.pdf
>  
> @@ -150,6 +154,6 @@ Cheers,
>      Sean V Kelley
>      sean.v.kelley@xxxxxxxxxxxxxxx
>  
> -[1] https://lore.kernel.org/r/12131949181903-git-send-email-sassmann@xxxxxxx/
> -[2] https://lore.kernel.org/r/12131949182094-git-send-email-sassmann@xxxxxxx/
> -[3] https://lore.kernel.org/r/487C8EA7.6020205@xxxxxxx/
> +.. [1] https://lore.kernel.org/r/12131949181903-git-send-email-sassmann@xxxxxxx/
> +.. [2] https://lore.kernel.org/r/12131949182094-git-send-email-sassmann@xxxxxxx/
> +.. [3] https://lore.kernel.org/r/487C8EA7.6020205@xxxxxxx/
> -- 
> 2.24.1
> 



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