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From: Bjorn Helgaas <helgaas@kernel.org>
To: "Kelley, Sean V" <sean.v.kelley@intel.com>
Cc: "bhelgaas@google.com" <bhelgaas@google.com>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	"xerces.zhao@gmail.com" <xerces.zhao@gmail.com>,
	"Wysocki, Rafael J" <rafael.j.wysocki@intel.com>,
	"Raj, Ashok" <ashok.raj@intel.com>,
	"Luck, Tony" <tony.luck@intel.com>,
	"Kuppuswamy,
	Sathyanarayanan" <sathyanarayanan.kuppuswamy@intel.com>,
	"Zhuo, Qiuxu" <qiuxu.zhuo@intel.com>,
	Linux PCI <linux-pci@vger.kernel.org>,
	Linux List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v12 12/15] PCI/RCEC: Add RCiEP's linked RCEC to AER/ERR
Date: Fri, 4 Dec 2020 11:24:59 -0600	[thread overview]
Message-ID: <20201204172459.GA1694978@bjorn-Precision-5520> (raw)
In-Reply-To: <4FD8E577-2F6A-4829-B92F-45D5E13BF9A4@intel.com>

On Fri, Dec 04, 2020 at 05:17:58PM +0000, Kelley, Sean V wrote:
> On Dec 3, 2020, at 4:01 PM, Bjorn Helgaas <helgaas@kernel.org> wrote:

> > OK, so if we want a comment here, I assume it would be along the lines
> > of:
> > 
> >  If "bridge" has no subordinate bus, it's an RCEC or an RCiEP.  In
> >  either of those cases, we want to call the callback on "bridge"
> >  itself.
> 
> Correct.

OK, good.  I think the function comment now captures this.

> > So IIUC, the code would be:
> > 
> >  if (bridge->subordinate)
> >    pci_walk_bus(bridge->subordinate, cb, userdata);
> >  else
> >    cb(bridge, userdata);    /* RCEC or RCiEP */
> > 
> > Right?
> 
> Right, as before.

Updated to match this.

> > I pushed a pci/err branch
> > (https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/log/?h=pci/err)
> > with some tweaks in these areas.  Diff from your v12 posting appended
> > below.  I split the RCEC/RCiEP error recovery pieces up a little bit
> > differently than in your posting.  Let me know if you see anything
> > that should be changed.  I dropped one of Jonathan's
> > reviewed/tested-by but probably should have dropped others to avoid
> > putting words in his mouth.
> 
> Thanks very much for doing this update.  It looks good to me.

I just updated this for the "rc used before initialization" error.
Current head f74d7cf9f2bc ("PCI/AER: Add RCEC AER error injection
support").

  reply	other threads:[~2020-12-04 17:25 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-21  0:10 [PATCH v12 00/15] Add RCEC handling to PCI/AER Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 01/15] AER: aer_root_reset() non-native handling Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 02/15] PCI/RCEC: Bind RCEC devices to the Root Port driver Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 03/15] PCI/RCEC: Cache RCEC capabilities in pci_init_capabilities() Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 04/15] PCI/ERR: Rename reset_link() to reset_subordinates() Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 05/15] PCI/ERR: Simplify by using pci_upstream_bridge() Sean V Kelley
2020-12-03 18:45   ` Kelley, Sean V
2020-12-03 22:25     ` Bjorn Helgaas
2020-11-21  0:10 ` [PATCH v12 06/15] PCI/ERR: Simplify by computing pci_pcie_type() once Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 07/15] PCI/ERR: Use "bridge" for clarity in pcie_do_recovery() Sean V Kelley
2020-12-02 23:18   ` Bjorn Helgaas
2020-11-21  0:10 ` [PATCH v12 08/15] PCI/ERR: Avoid negated conditional for clarity Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 09/15] PCI/ERR: Add pci_walk_bridge() to pcie_do_recovery() Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 10/15] PCI/ERR: Limit AER resets in pcie_do_recovery() Sean V Kelley
2020-11-23 23:28   ` Bjorn Helgaas
2020-11-23 23:57     ` Kelley, Sean V
2020-11-24 17:17       ` Bjorn Helgaas
2020-11-30 19:54         ` Kelley, Sean V
2020-12-01  0:25           ` Bjorn Helgaas
2020-12-01  1:09             ` Kuppuswamy, Sathyanarayanan
2020-12-01  1:13             ` Kelley, Sean V
2020-12-02 20:53             ` Kelley, Sean V
2020-12-02 21:27               ` Bjorn Helgaas
2020-12-02 22:54                 ` Kelley, Sean V
2020-11-21  0:10 ` [PATCH v12 11/15] PCI/RCEC: Add pcie_link_rcec() to associate RCiEPs Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 12/15] PCI/RCEC: Add RCiEP's linked RCEC to AER/ERR Sean V Kelley
2020-12-02 23:44   ` Bjorn Helgaas
2020-12-03  0:51     ` Kelley, Sean V
2020-12-04  0:01       ` Bjorn Helgaas
2020-12-04 17:17         ` Kelley, Sean V
2020-12-04 17:24           ` Bjorn Helgaas [this message]
2020-12-05 21:30           ` Bjorn Helgaas
2020-12-07 17:23             ` Kelley, Sean V
2020-11-21  0:10 ` [PATCH v12 13/15] PCI/AER: Add pcie_walk_rcec() to RCEC AER handling Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 14/15] PCI/PME: Add pcie_walk_rcec() to RCEC PME handling Sean V Kelley
2020-11-21  0:10 ` [PATCH v12 15/15] PCI/AER: Add RCEC AER error injection support Sean V Kelley
2020-11-21  4:26 ` [PATCH v12 00/15] Add RCEC handling to PCI/AER Bjorn Helgaas

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