From: Joao Pinto <Joao.Pinto@synopsys.com>
To: Kishon Vijay Abraham I <kishon@ti.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Jingoo Han <jingoohan1@gmail.com>,
Joao Pinto <Joao.Pinto@synopsys.com>
Cc: devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
linux-pci@vger.kernel.org, nsekhar@ti.com,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 04/22] Documentation: PCI: Guide to use pci endpoint configfs
Date: Fri, 17 Feb 2017 13:05:32 +0000 [thread overview]
Message-ID: <ac16c03a-e415-327c-27b3-bcc700a6f953@synopsys.com> (raw)
In-Reply-To: <1487325042-28227-5-git-send-email-kishon@ti.com>
=C0s 9:50 AM de 2/17/2017, Kishon Vijay Abraham I escreveu:
> Add Documentation to help users use pci endpoint to configure
> pci endpoint function and to bind the endpoint function
> with endpoint controller.
> =
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
> Documentation/PCI/00-INDEX | 2 +
> Documentation/PCI/endpoint/pci-endpoint-cfs.txt | 84 +++++++++++++++++=
++++++
> 2 files changed, 86 insertions(+)
> create mode 100644 Documentation/PCI/endpoint/pci-endpoint-cfs.txt
> =
> diff --git a/Documentation/PCI/00-INDEX b/Documentation/PCI/00-INDEX
> index ba950b2..f84a23c 100644
> --- a/Documentation/PCI/00-INDEX
> +++ b/Documentation/PCI/00-INDEX
> @@ -14,3 +14,5 @@ pcieaer-howto.txt
> - the PCI Express Advanced Error Reporting Driver Guide HOWTO
> endpoint/pci-endpoint.txt
> - guide to add endpoint controller driver and endpoint function driver.
> +endpoint/pci-endpoint-cfs.txt
> + - guide to use configfs to configure the pci endpoint function.
> diff --git a/Documentation/PCI/endpoint/pci-endpoint-cfs.txt b/Documentat=
ion/PCI/endpoint/pci-endpoint-cfs.txt
> new file mode 100644
> index 0000000..d9f8734
> --- /dev/null
> +++ b/Documentation/PCI/endpoint/pci-endpoint-cfs.txt
> @@ -0,0 +1,84 @@
> + CONFIGURING PCI ENDPOINT USING CONFIGFS
> + Kishon Vijay Abraham I <kishon@ti.com>
> +
> +The PCI Endpoint Core exposes configfs entry (pci_ep) in order to config=
ure the
> +PCI endpoint function and in order to bind the endpoint function
> +with the endpoint controller. (For introducing other mechanisms to
> +configure the PCI Endpoint Function refer [1]).
> +
> +*) Mounting configfs
> +
> +The PCI Endpoint Core layer creates pci_ep directory in the mounted conf=
igfs
> +directory. configfs can be mounted using the following command.
> +
> + mount -t configfs none /sys/kernel/config
> +
> +*) Directory Structure
> +
> +The pci_ep configfs directory structure has been created to reflect the
> +natural tree like structure of PCI devices. So every directory created
> +inside pci_ep represents a EPC device and every directory created inside
> +epf directory represents EPF device.
> +
> +/sys/kernel/config/pci_ep/
> + | <dir>/ --------------------------------------> [2]
> + | epc
> + | epf/
> + | <dir>/ --------------------------> [3]
> + | vendorid
> + | deviceid
> + | revid
> + | progif_code
> + | subclass_code
> + | baseclass_code
> + | cache_line_size
> + | subsys_vendor_id
> + | subsys_id
> + | interrupt_pin
> + | function
> +
> +*) Creating configfs entry for EPC
> +
> +Any directory created inside *pci_ep* represents an EPC device. In the a=
bove
> +directory structure [2] represents an EPC device. It consists of
> +
> + *) epc: Use it to associate the configfs entry to an actual EPC device.
> + The list of valid entries for this field can be obtained from
> + ls /sys/class/pci_epc/
> +
> + *) epf: Directory that contains all the endpoint functions. The name
> + of the created directory determines the driver this particular
> + epf device will be bound to. The name can be obtained either
> + from the function binding documentation [4] or
> + ls /sys/bus/pci-epf/drivers
> +
> + If more than one endpoint function device has to be bound to
> + the same driver, then the directory should be created using
> + the following notation
> + mkdir <name>.<num>
> +
> +*) Creating configfs entry for EPF
> +
> +Any directory created inside *epf* directory represents an EPF device. I=
n the
> +above directory structure, [3] represents an EPF device. It consists of =
the
> +following entries that can be used to configure the standard configurati=
on
> +header of the endpoint function. (These entries are created by the
> +framework when any new directory is created inside epf directory.)
> +
> + | vendorid
> + | deviceid
> + | revid
> + | progif_code
> + | subclass_code
> + | baseclass_code
> + | cache_line_size
> + | subsys_vendor_id
> + | subsys_id
> + | interrupt_pin
> +
> +The following entry identifies the function driver that is bound to the
> +function device
> + | function
> +
> +[1] -> Documentation/PCI/endpoint/pci-endpoint.txt
> +[4] -> Documentation/PCI/endpoint/function/binding/
> =
Good content.
Acked-By: Joao Pinto <jpinto@synopsys.com>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2017-02-17 13:05 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-17 9:50 [PATCH v2 00/22] PCI: Support for configurable PCI endpoint Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 01/22] PCI: endpoint: Add EP core layer to enable EP controller and EP functions Kishon Vijay Abraham I
2017-02-17 11:26 ` Joao Pinto
2017-02-17 11:37 ` Kishon Vijay Abraham I
2017-02-17 11:39 ` Joao Pinto
2017-02-17 9:50 ` [PATCH v2 02/22] Documentation: PCI: Guide to use PCI Endpoint Core Layer Kishon Vijay Abraham I
2017-02-17 11:43 ` Joao Pinto
2017-02-17 9:50 ` [PATCH v2 03/22] PCI: endpoint: Introduce configfs entry for configuring EP functions Kishon Vijay Abraham I
2017-02-17 12:01 ` Kishon Vijay Abraham I
2017-02-17 17:04 ` Christoph Hellwig
2017-03-06 9:41 ` Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 04/22] Documentation: PCI: Guide to use pci endpoint configfs Kishon Vijay Abraham I
2017-02-17 13:05 ` Joao Pinto [this message]
2017-02-17 17:15 ` Christoph Hellwig
2017-03-06 10:16 ` Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 05/22] Documentation: PCI: Add specification for the *pci test* function device Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 06/22] PCI: endpoint: functions: Add an EP function to test PCI Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 07/22] Documentation: PCI: Add binding documentation for pci-test endpoint function Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 08/22] PCI: dwc: designware: Add EP mode support Kishon Vijay Abraham I
2017-02-17 13:15 ` Kishon Vijay Abraham I
2017-02-17 17:20 ` Joao Pinto
2017-03-06 9:55 ` Kishon Vijay Abraham I
2017-03-07 5:18 ` Kishon Vijay Abraham I
2017-03-07 11:10 ` Joao Pinto
2017-03-08 11:32 ` Joao Pinto
2017-03-08 11:35 ` Kishon Vijay Abraham I
2017-03-08 11:37 ` Joao Pinto
2017-03-08 13:31 ` Kishon Vijay Abraham I
2017-03-08 15:32 ` Joao Pinto
2017-03-08 15:33 ` Joao Pinto
2017-03-08 19:14 ` Christoph Hellwig
2017-03-09 11:55 ` Joao Pinto
2017-02-17 9:50 ` [PATCH v2 09/22] dt-bindings: PCI: Add dt bindings for pci designware EP mode Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 10/22] PCI: dwc: dra7xx: Facilitate wrapper and msi interrupts to be enabled independently Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 11/22] PCI: dwc: dra7xx: Add EP mode support Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 12/22] dt-bindings: PCI: dra7xx: Add dt bindings for pci dra7xx EP mode Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 13/22] PCI: dwc: dra7xx: Workaround for errata id i870 Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 14/22] dt-bindings: PCI: dra7xx: Add dt bindings to enable legacy mode Kishon Vijay Abraham I
2017-02-27 16:40 ` Rob Herring
2017-02-28 3:28 ` Kishon Vijay Abraham I
2017-03-06 9:56 ` Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 15/22] PCI: Add device IDs for DRA74x and DRA72x Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 16/22] misc: Add host side pci driver for pci test function device Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 17/22] Documentation: misc-devices: Add Documentation for pci-endpoint-test driver Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 18/22] tools: PCI: Add a userspace tool to test PCI endpoint Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 19/22] tools: PCI: Add sample test script to invoke pcitest Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 20/22] Documentation: PCI: Add userguide for PCI endpoint test function Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 21/22] MAINTAINERS: add PCI EP maintainer Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 22/22] ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP Kishon Vijay Abraham I
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ac16c03a-e415-327c-27b3-bcc700a6f953@synopsys.com \
--to=joao.pinto@synopsys.com \
--cc=bhelgaas@google.com \
--cc=devicetree@vger.kernel.org \
--cc=jingoohan1@gmail.com \
--cc=kishon@ti.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=nsekhar@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).