linux-pci.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ethan Zhao <xerces.zhao@gmail.com>
To: Vidya Sagar <vidyas@nvidia.com>
Cc: jingoohan1@gmail.com, gustavo.pimentel@synopsys.com,
	lorenzo.pieralisi@arm.com, Bjorn Helgaas <bhelgaas@google.com>,
	amurray@thegoodpenguin.co.uk, robh@kernel.org,
	treding@nvidia.com, jonathanh@nvidia.com,
	linux-pci <linux-pci@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	kthota@nvidia.com, mmaddireddy@nvidia.com, sagar.tv@gmail.com
Subject: Re: [PATCH V2 1/2] PCI/AER: Add pcie_is_ecrc_enabled() API
Date: Wed, 28 Oct 2020 10:47:55 +0800	[thread overview]
Message-ID: <CAKF3qh2Rh7pc59j2THpNi=rsj1OYG7Ac5yg+yTcqoP8J9X6DxQ@mail.gmail.com> (raw)
In-Reply-To: <20201027080330.8877-2-vidyas@nvidia.com>

On Wed, Oct 28, 2020 at 9:48 AM Vidya Sagar <vidyas@nvidia.com> wrote:
>
> Adds pcie_is_ecrc_enabled() API to let other sub-systems (like DesignWare)
> to query if ECRC policy is enabled and perform any configuration
> required in those respective sub-systems.
>
> Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
> ---
> V2:
> * None from V1
>
>  drivers/pci/pci.h      |  2 ++
>  drivers/pci/pcie/aer.c | 11 +++++++++++
>  2 files changed, 13 insertions(+)
>
> diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
> index fa12f7cbc1a0..325fdbf91dde 100644
> --- a/drivers/pci/pci.h
> +++ b/drivers/pci/pci.h
> @@ -575,9 +575,11 @@ static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev) { }
>  #ifdef CONFIG_PCIE_ECRC
>  void pcie_set_ecrc_checking(struct pci_dev *dev);
>  void pcie_ecrc_get_policy(char *str);
> +bool pcie_is_ecrc_enabled(void);
>  #else
>  static inline void pcie_set_ecrc_checking(struct pci_dev *dev) { }
>  static inline void pcie_ecrc_get_policy(char *str) { }
> +static inline bool pcie_is_ecrc_enabled(void) { return false; }
>  #endif
>
>  #ifdef CONFIG_PCIE_PTM
> diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
> index 65dff5f3457a..24363c895aba 100644
> --- a/drivers/pci/pcie/aer.c
> +++ b/drivers/pci/pcie/aer.c
> @@ -207,6 +207,17 @@ void pcie_ecrc_get_policy(char *str)
>
>         ecrc_policy = i;
>  }
> +
> +/**
> + * pcie_is_ecrc_enabled - returns if ECRC is enabled in the system or not
> + *
> + * Returns 1 if ECRC policy is enabled and 0 otherwise
 How about 'Returns true if ECRC policy is enabled and false otherwise'  ?
> + */
> +bool pcie_is_ecrc_enabled(void)
> +{
> +       return ecrc_policy == ECRC_POLICY_ON;
> +}
> +EXPORT_SYMBOL(pcie_is_ecrc_enabled);
>  #endif /* CONFIG_PCIE_ECRC */
>
>  #define        PCI_EXP_AER_FLAGS       (PCI_EXP_DEVCTL_CERE | PCI_EXP_DEVCTL_NFERE | \
> --
> 2.17.1
>

  parent reply	other threads:[~2020-10-28 22:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-27  8:03 [PATCH V2 0/2] Add support to configure DWC for ECRC Vidya Sagar
2020-10-27  8:03 ` [PATCH V2 1/2] PCI/AER: Add pcie_is_ecrc_enabled() API Vidya Sagar
2020-10-27 14:26   ` Jingoo Han
2020-10-28  2:47   ` Ethan Zhao [this message]
2020-10-27  8:03 ` [PATCH V2 2/2] PCI: dwc: Add support to configure for ECRC Vidya Sagar
2020-10-27 14:24   ` Jingoo Han

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='CAKF3qh2Rh7pc59j2THpNi=rsj1OYG7Ac5yg+yTcqoP8J9X6DxQ@mail.gmail.com' \
    --to=xerces.zhao@gmail.com \
    --cc=amurray@thegoodpenguin.co.uk \
    --cc=bhelgaas@google.com \
    --cc=gustavo.pimentel@synopsys.com \
    --cc=jingoohan1@gmail.com \
    --cc=jonathanh@nvidia.com \
    --cc=kthota@nvidia.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=lorenzo.pieralisi@arm.com \
    --cc=mmaddireddy@nvidia.com \
    --cc=robh@kernel.org \
    --cc=sagar.tv@gmail.com \
    --cc=treding@nvidia.com \
    --cc=vidyas@nvidia.com \
    --subject='Re: [PATCH V2 1/2] PCI/AER: Add pcie_is_ecrc_enabled() API' \
    /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

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).