linux-kernel - Re: [PATCH v5 15/16] cxl/pci: Add support to assign and clear pci_driver::cxl_err

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Message-ID: <Z6W_jKNZfrRBIirQ@gourry-fedora-PF4VCD3F>
Date: Fri, 7 Feb 2025 03:08:44 -0500
From: Gregory Price <gourry@...rry.net>
To: Terry Bowman <terry.bowman@....com>
Cc: linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, nifan.cxl@...il.com, dave@...olabs.net,
	jonathan.cameron@...wei.com, 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, lukas@...ner.de,
	ming.li@...omail.com, PradeepVineshReddy.Kodamati@....com,
	alucerop@....com
Subject: Re: [PATCH v5 15/16] cxl/pci: Add support to assign and clear
 pci_driver::cxl_err_handlers

On Tue, Jan 07, 2025 at 08:38:51AM -0600, Terry Bowman wrote:
> pci_driver::cxl_err_handlers are not currently assigned handler callbacks.
> The handlers can't be set in the pci_driver static definition because the
> CXL PCIe Port devices are bound to the portdrv driver which is not CXL
> driver aware.
> 
> Add cxl_assign_port_error_handlers() in the cxl_core module. This
> function will assign the default handlers for a CXL PCIe Port device.
> 
> When the CXL Port (cxl_port or cxl_dport) is destroyed the device's
> pci_driver::cxl_err_handlers must be set to NULL indicating they should no
> longer be used.
> 
> Create cxl_clear_port_error_handlers() and register it to be called
> when the CXL Port device (cxl_port or cxl_dport) is destroyed.
> 
> Signed-off-by: Terry Bowman <terry.bowman@....com>

Reviewed-by: Gregory Price <gourry@...rry.net>