linux-kernel - Re: [PATCH v2 01/14] PCI/AER: Introduce 'struct cxl_err_handlers' and add to 'struct pci

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Message-ID: <20241030151407.0000227c@Huawei.com>
Date: Wed, 30 Oct 2024 15:14:07 +0000
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Terry Bowman <terry.bowman@....com>
CC: <ming4.li@...el.com>, <linux-cxl@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
	<dave@...olabs.net>, <dave.jiang@...el.com>, <alison.schofield@...el.com>,
	<vishal.l.verma@...el.com>, <dan.j.williams@...el.com>,
	<bhelgaas@...gle.com>, <mahesh@...ux.ibm.com>, <ira.weiny@...el.com>,
	<oohall@...il.com>, <Benjamin.Cheatham@....com>, <rrichter@....com>,
	<nathan.fontenot@....com>, <Smita.KoralahalliChannabasappa@....com>
Subject: Re: [PATCH v2 01/14] PCI/AER: Introduce 'struct cxl_err_handlers'
 and add to 'struct pci_driver'

On Fri, 25 Oct 2024 16:02:52 -0500
Terry Bowman <terry.bowman@....com> wrote:

> CXL.io provides PCIe like protocol error implementation, but CXL.io and
> PCIe have different handling requirements.
> 
> The PCIe AER service driver may attempt recovering PCIe devices with
> uncorrectable errors while recovery is not used for CXL.io. Recovery is not
> used in the CXL.io recovery because of the potential for corruption on
> what can be system memory.
> 
> Create pci_driver::cxl_err_handlers similar to pci_driver::error_handler.
> Create handlers for correctable and uncorrectable CXL.io error
> handling.
> 
> The CXL error handlers will be used in future patches adding CXL PCIe
> port protocol error handling.
> 
> Signed-off-by: Terry Bowman <terry.bowman@....com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>