linux-kernel - Re: [PATCH v7 4/5] Add debugfs based error injection support in DWC

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Message-ID: <20250305072632.GB847772@rocinante>
Date: Wed, 5 Mar 2025 16:26:32 +0900
From: 'Krzysztof Wilczyński' <kw@...ux.com>
To: Shradha Todi <shradha.t@...sung.com>
Cc: 'Manivannan Sadhasivam' <manivannan.sadhasivam@...aro.org>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-perf-users@...r.kernel.org, lpieralisi@...nel.org,
	robh@...nel.org, bhelgaas@...gle.com, jingoohan1@...il.com,
	Jonathan.Cameron@...wei.com, fan.ni@...sung.com,
	nifan.cxl@...il.com, a.manzanares@...sung.com,
	pankaj.dubey@...sung.com, cassel@...nel.org, 18255117159@....com,
	xueshuai@...ux.alibaba.com, renyu.zj@...ux.alibaba.com,
	will@...nel.org, mark.rutland@....com
Subject: Re: [PATCH v7 4/5] Add debugfs based error injection support in DWC

Hello,

[...]
> > > > > +		29) Generates duplicate TLPs - duplicate_dllp
> > > > > +		30) Generates Nullified TLPs - nullified_tlp
> > > >
> > > > Would the above field called "duplicate_dllp" for duplicate TLPs be
> > > > a potential typo?  Perhaps this should be called "duplicate_tlp"?
> > > >
> > >
> > > Looks like a typo. As per Synopsys documentation, there is only 'duplicate TLP'
> > > field.
> > >
> > > Good catch!
> > 
> > Updated.  Thank you!
> > 
> 
> Sorry, this was a typo. Krzysztof, we need another change for this typo.

Not a problem.  I am glad we caught this early.

[...]
> --- a/drivers/pci/controller/dwc/pcie-designware-debugfs.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-debugfs.c
> @@ -113,7 +113,7 @@ static const struct dwc_pcie_err_inj err_inj_list[] = {
>         {"posted_tlp_data", 0x4, 0x4},
>         {"non_post_tlp_data", 0x4, 0x5},
>         {"cmpl_tlp_data", 0x4, 0x6},
> -       {"duplicate_dllp", 0x5, 0x0},
> +       {"duplicate_tlp", 0x5, 0x0},
>         {"nullified_tlp", 0x5, 0x1},
>  };

Oh here too.  No worries.  I missed this one. :)

> So sorry for the inconvenience! Should I post a patch for this?

No, no need.  I will update this directly on the branch.

Thank you!

	Krzysztof