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Message-ID: <aBxa3wItVo4iIKT_@wunner.de>
Date: Thu, 8 May 2025 09:18:55 +0200
From: Lukas Wunner <lukas@...ner.de>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
	Oliver O'Halloran <oohall@...il.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczy??ski <kw@...ux.com>, Rob Herring <robh@...nel.org>,
	Zhou Wang <wangzhou1@...ilicon.com>, Will Deacon <will@...nel.org>,
	Robert Richter <rric@...nel.org>,
	Alyssa Rosenzweig <alyssa@...enzweig.io>,
	Marc Zyngier <maz@...nel.org>,
	Conor Dooley <conor.dooley@...rochip.com>,
	Daire McNamara <daire.mcnamara@...rochip.com>, dingwei@...vell.com,
	cassel@...nel.org,
	Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>,
	linuxppc-dev@...ts.ozlabs.org, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v4 2/5] PCI/ERR: Add support for resetting the slots in a
 platform specific way

On Thu, May 08, 2025 at 12:40:31PM +0530, Manivannan Sadhasivam wrote:
> Some host bridge devices require resetting the slots in a platform specific
> way to recover them from error conditions such as Fatal AER errors, Link
> Down etc... So introduce pci_host_bridge::reset_slot callback and call it
> from pcibios_reset_secondary_bus() if available.
> 
> The 'reset_slot' callback is responsible for resetting the given slot
> referenced by the 'pci_dev' pointer in a platform specific way and bring it
> back to the working state if possible. If any error occurs during the slot
> reset operation, relevant errno should be returned.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

Reviewed-by: Lukas Wunner <lukas@...ner.de>

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