From: Sinan Kaya <okaya@kernel.org>
To: "Kuppuswamy,
Sathyanarayanan" <sathyanarayanan.kuppuswamy@linux.intel.com>,
Bjorn Helgaas <helgaas@kernel.org>
Cc: bhelgaas@google.com, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, ashok.raj@intel.com,
Jay Vosburgh <jay.vosburgh@canonical.com>
Subject: Re: [PATCH v3 1/1] PCI/ERR: Fix reset logic in pcie_do_recovery() call
Date: Wed, 23 Sep 2020 22:16:31 -0400 [thread overview]
Message-ID: <526dc846-b12b-3523-4995-966eb972ceb7@kernel.org> (raw)
In-Reply-To: <d5aa53dc-0c94-e57a-689a-1c1f89787af1@linux.intel.com>
On 9/23/2020 10:04 PM, Kuppuswamy, Sathyanarayanan wrote:
>> AFAIK, DLLSC is a requirement not optional. Why is this not supported by
>> non-hotplug ports?
> Its required for hotplug capable ports. Please check PCIe spec v5.0 sec
> 6.7.3.3.
>
> The Data Link Layer State Changed event provides an indication that the
> state of
> the Data Link Layer Link Active bit in the Link Status Register has
> changed.
> Support for Data Link Layer State Changed events and software
> notification of these
> events are required for hot-plug capable Downstream Ports.
I see. Can I assume that your system supports DPC?
DPC is supposed to recover the link via dpc_reset_link().
next prev parent reply other threads:[~2020-09-24 2:16 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3cad1a07-509b-ef51-f635-71def2ff8293@linux.intel.com>
2020-09-22 23:33 ` [PATCH v3 1/1] PCI/ERR: Fix reset logic in pcie_do_recovery() call Bjorn Helgaas
2020-09-22 23:44 ` Kuppuswamy, Sathyanarayanan
2020-09-24 1:15 ` Sinan Kaya
2020-09-24 2:04 ` Kuppuswamy, Sathyanarayanan
2020-09-24 2:16 ` Sinan Kaya [this message]
2020-09-24 2:51 ` Kuppuswamy, Sathyanarayanan
2020-09-24 3:13 ` Sinan Kaya
2020-09-24 4:06 ` Kuppuswamy, Sathyanarayanan
2020-09-24 20:52 ` Sinan Kaya
2020-09-25 5:11 ` Kuppuswamy, Sathyanarayanan
2020-09-25 16:55 ` Sinan Kaya
2020-09-25 17:11 ` Kuppuswamy, Sathyanarayanan
2020-09-25 17:47 ` Sinan Kaya
2020-09-25 18:16 ` Kuppuswamy, Sathyanarayanan
2020-09-25 18:30 ` Sinan Kaya
2020-09-28 2:43 ` Kuppuswamy, Sathyanarayanan
2020-09-28 8:41 ` Ethan Zhao
2020-09-28 11:17 ` Sinan Kaya
2020-09-28 12:16 ` Sinan Kaya
2020-09-28 17:15 ` Kuppuswamy, Sathyanarayanan
2020-09-28 18:02 ` Sinan Kaya
2020-09-28 18:25 ` Sinan Kaya
2020-09-28 18:32 ` Kuppuswamy, Sathyanarayanan
2020-10-12 5:13 ` Kuppuswamy, Sathyanarayanan
2020-10-12 14:51 ` Sinan Kaya
2020-09-28 12:11 ` Sinan Kaya
2020-09-25 23:50 ` Sinan Kaya
2020-07-24 19:07 sathyanarayanan.kuppuswamy
2020-09-01 5:41 ` Kuppuswamy, Sathyanarayanan
2020-09-22 18:52 ` Bjorn Helgaas
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