linux-kernel - Re: [PATCH v8 0/7] PCI: Consolidate TLP Log reading and printing

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Message-ID: <20250108155305.GB1221136@yaz-khff2.amd.com>
Date: Wed, 8 Jan 2025 10:53:05 -0500
From: Yazen Ghannam <yazen.ghannam@....com>
To: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
	Krzysztof Wilczyński <kw@...ux.com>,
	Lukas Wunner <lukas@...ner.de>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
	Oliver O'Halloran <oohall@...il.com>, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v8 0/7] PCI: Consolidate TLP Log reading and printing

On Wed, Dec 18, 2024 at 04:37:40PM +0200, Ilpo Järvinen wrote:
> This series has the remaining patches of the AER & DPC TLP Log handling
> consolidation and now includes a few minor improvements to the earlier
> accepted TLP Logging code.
> 
> v8:
> - Added missing parameter to kerneldoc.
> - Dropped last patch due to conflict with the pci_printk() cleanup
>   series (will move the patch into that series).
> 
> v7:
> - Explain in commit message reasoning why eetlp_prefix_max stores Max
>   End-End TLP Prefixes value instead of limiting it by the bridge/RP
>   imposed limits
> - Take account TLP Prefix Log Present flag.
> - Align PCI_ERR_CAP_* flags in pci_regs.h
> - Add EE_PREFIX_STR define to be able to take its sizeof() for output
>   char[] sizing.
> 
> v6:
> - Preserve "AER:"/"DPC:" prefix on the printed TLP line
> - New patch to add "AER:" also  on other lines of the AER error dump
> 
> v5:
> - Fix build with AER=y and DPC=n
> - Match kerneldoc and function parameter name
> 
> v4:
> - Added patches:
> 	- Remove EXPORT of pcie_read_tlp_log()
> 	- Moved code to pcie/tlp.c and build only with AER enabled
> 	- Match variables in prototype and function
> 	- int -> unsigned int conversion
> 	- eetlp_prefix_max into own patch
> - struct pcie_tlp_log param consistently called "log" within tlp.c
> - Moved function prototypes into drivers/pci/pci.h
> - Describe AER/DPC differences more clearly in one commit message
> 
> v3:
> - Small rewording in a commit message
> 
> v2:
> - Don't add EXPORT()s
> - Don't include igxbe changes
> - Don't use pr_cont() as it's incompatible with pci_err() and according
>   to Andy Shevchenko should not be used in the first place
> 
> 
> Ilpo Järvinen (7):
>   PCI: Don't expose pcie_read_tlp_log() outside of PCI subsystem
>   PCI: Move TLP Log handling to own file
>   PCI: Make pcie_read_tlp_log() signature same
>   PCI: Use unsigned int i in pcie_read_tlp_log()
>   PCI: Store # of supported End-End TLP Prefixes
>   PCI: Add TLP Prefix reading into pcie_read_tlp_log()
>   PCI: Create helper to print TLP Header and Prefix Log
> 
>  drivers/pci/ats.c             |   2 +-
>  drivers/pci/pci.c             |  28 ---------
>  drivers/pci/pci.h             |   9 +++
>  drivers/pci/pcie/Makefile     |   2 +-
>  drivers/pci/pcie/aer.c        |  15 ++---
>  drivers/pci/pcie/dpc.c        |  14 ++---
>  drivers/pci/pcie/tlp.c        | 113 ++++++++++++++++++++++++++++++++++
>  drivers/pci/probe.c           |  14 +++--
>  include/linux/aer.h           |   3 +-
>  include/linux/pci.h           |   2 +-
>  include/uapi/linux/pci_regs.h |  11 ++--
>  11 files changed, 153 insertions(+), 60 deletions(-)
>  create mode 100644 drivers/pci/pcie/tlp.c
> 
> -- 

Can you please include a base commit in future revisions?

I was able to apply the set to v6.13-rc6, but I was trying a couple of
the PCI repo branches before which didn't apply.

Thanks,
Yazen