From: "Sean V Kelley" <sean.v.kelley@intel.com>
To: "Bjorn Helgaas" <helgaas@kernel.org>
Cc: "Sean V Kelley" <seanvk.dev@oregontracks.org>,
bhelgaas@google.com, Jonathan.Cameron@huawei.com,
rafael.j.wysocki@intel.com, ashok.raj@intel.com,
tony.luck@intel.com, sathyanarayanan.kuppuswamy@intel.com,
qiuxu.zhuo@intel.com, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 07/10] PCI/RCEC: Add RCiEP's linked RCEC to AER/ERR
Date: Mon, 28 Sep 2020 14:36:00 -0700 [thread overview]
Message-ID: <93B0C872-C440-484A-9908-2D5B974595CD@intel.com> (raw)
In-Reply-To: <20200928014711.GA2475864@bjorn-Precision-5520>
On 27 Sep 2020, at 18:47, Bjorn Helgaas wrote:
> On Sun, Sep 27, 2020 at 06:45:45PM -0500, Bjorn Helgaas wrote:
>> On Tue, Sep 22, 2020 at 02:38:56PM -0700, Sean V Kelley wrote:
>>> From: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
>
>>> pci_dbg(dev, "broadcast error_detected message\n");
>>> if (state == pci_channel_io_frozen) {
>>> - pci_bridge_walk(bridge, report_frozen_detected, &status);
>>> + pci_bridge_walk(bridge, dev, report_frozen_detected, &status);
>>> if (type == PCI_EXP_TYPE_RC_END) {
>>> + /*
>>> + * The callback only clears the Root Error Status
>>> + * of the RCEC (see aer.c).
>>> + */
>>> + if (bridge)
>>> + reset_subordinate_devices(bridge);
>>
>> It's unfortunate to add yet another special case in this code, and
>> I'm
>> not thrilled about the one in aer_root_reset() either. It's just not
>> obvious why they should be there. I'm sure if I spent 30 minutes
>> decoding things, it would all make sense. Guess I'm just griping
>> because I don't have a better suggestion.
>
> I'm sorry, this was unkind of me. If I don't have a constructive
> idea, there's no reason for me to complain about this. I apologize.
>
> Bjorn
No worries at all. The unfortunate handling of the Spec for RCEC/RCiEP
associations and the added needs for native versus non-native is
frustrating.
Sean
next prev parent reply other threads:[~2020-09-28 21:36 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-22 21:38 [PATCH v6 00/10] Add RCEC handling to PCI/AER Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 01/10] PCI/RCEC: Add RCEC class code and extended capability Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 02/10] PCI/RCEC: Bind RCEC devices to the Root Port driver Sean V Kelley
2020-09-25 19:59 ` Bjorn Helgaas
2020-09-25 21:39 ` Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 03/10] PCI/RCEC: Cache RCEC capabilities in pci_init_capabilities() Sean V Kelley
2020-09-25 20:13 ` Bjorn Helgaas
2020-09-25 21:49 ` Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 04/10] PCI/AER: Extend AER error handling to RCECs Sean V Kelley
2020-09-25 21:14 ` Bjorn Helgaas
2020-09-25 22:08 ` Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 05/10] PCI/AER: Apply function level reset to RCiEP on fatal error Sean V Kelley
2020-09-25 21:58 ` Bjorn Helgaas
2020-09-25 22:54 ` Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 06/10] PCI/RCEC: Add pcie_link_rcec() to associate RCiEPs Sean V Kelley
2020-09-25 22:15 ` Bjorn Helgaas
2020-09-28 16:20 ` Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 07/10] PCI/RCEC: Add RCiEP's linked RCEC to AER/ERR Sean V Kelley
2020-09-27 23:45 ` Bjorn Helgaas
2020-09-28 1:47 ` Bjorn Helgaas
2020-09-28 21:36 ` Sean V Kelley [this message]
2020-09-28 17:27 ` Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 08/10] PCI/AER: Add pcie_walk_rcec() to RCEC AER handling Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 09/10] PCI/PME: Add pcie_walk_rcec() to RCEC PME handling Sean V Kelley
2020-09-22 21:38 ` [PATCH v6 10/10] PCI/AER: Add RCEC AER error injection support Sean V Kelley
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