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From: Bjorn Helgaas <helgaas@kernel.org>
To: poza@codeaurora.org
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	Philippe Ombredanne <pombredanne@nexb.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kate Stewart <kstewart@linuxfoundation.org>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	Dongdong Liu <liudongdong3@huawei.com>,
	Keith Busch <keith.busch@intel.com>, Wei Zhang <wzhang@fb.com>,
	Sinan Kaya <okaya@codeaurora.org>,
	Timur Tabi <timur@codeaurora.org>,
	linux-pci-owner@vger.kernel.org
Subject: Re: [PATCH v15 8/9] PCI/DPC: Unify and plumb error handling into DPC
Date: Thu, 10 May 2018 11:27:46 -0500	[thread overview]
Message-ID: <20180510162746.GA190385@bhelgaas-glaptop.roam.corp.google.com> (raw)
In-Reply-To: <29c21a3fbaeb56c0581da66b9203dfd1@codeaurora.org>

On Thu, May 10, 2018 at 07:56:00PM +0530, poza@codeaurora.org wrote:
> On 2018-05-10 18:52, Bjorn Helgaas wrote:
> > On Thu, May 03, 2018 at 01:03:57AM -0400, Oza Pawandeep wrote:
> ...

> > > -static pci_ers_result_t reset_link(struct pci_dev *dev)
> > > +static pci_ers_result_t reset_link(struct pci_dev *dev, int severity)
> > >  {
> > >  	struct pci_dev *udev;
> > >  	pci_ers_result_t status;
> > >  	struct pcie_port_service_driver *driver;
> > > +	u32 service;
> > > 
> > >  	if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
> > >  		/* Reset this port for all subordinates */
> > > @@ -196,7 +197,12 @@ static pci_ers_result_t reset_link(struct
> > > pci_dev *dev)
> > >  	}
> > > 
> > >  	/* Use the aer driver of the component firstly */
> > > -	driver = pcie_port_find_service(udev, PCIE_PORT_SERVICE_AER);
> > > +	if (severity == DPC_FATAL)
> > > +		service = PCIE_PORT_SERVICE_DPC;
> > > +	else
> > > +		service = PCIE_PORT_SERVICE_AER;
> > > +
> > > +	driver = pcie_port_find_service(udev, service);
> > 
> > This is where I was wondering about passing in "service" directly
> > instead
> > of "severity".
> 
> passing service directly instead of severity ? (I do not think you meant to
> write severity there)

I did mean "severity".

> perhaps do you mean following ?
> 
> if (severity == DPC_FATAL)
>          pcie_port_find_service(udev, PCIE_PORT_SERVICE_DPC);
> else
>          pcie_port_find_service(udev, PCIE_PORT_SERVICE_AER);

No, my thought was that most of the places that use "severity" only
use it to decide between PCIE_PORT_SERVICE_DPC and
PCIE_PORT_SERVICE_AER, so if you just passed in "service" directly,
you wouldn't need this "if" statement.

Bjorn

  reply	other threads:[~2018-05-10 16:27 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-03  5:03 [PATCH v15 0/9] Address error and recovery for AER and DPC Oza Pawandeep
2018-05-03  5:03 ` [PATCH v15 1/9] PCI: Unify wait for link active into generic PCI Oza Pawandeep
2018-05-10 13:18   ` Bjorn Helgaas
2018-05-03  5:03 ` [PATCH v15 2/9] pci-error-recovery: Add AER_FATAL handling Oza Pawandeep
2018-05-03  5:03 ` [PATCH v15 3/9] PCI/AER: Handle ERR_FATAL with removal and re-enumeration of devices Oza Pawandeep
2018-05-08 23:53   ` Bjorn Helgaas
2018-05-09 13:07     ` Bjorn Helgaas
2018-05-09 13:14       ` poza
2018-05-09 23:21         ` Bjorn Helgaas
2018-05-10  7:01           ` poza
2018-05-10 13:10             ` Bjorn Helgaas
2018-05-10 13:15               ` okaya
2018-05-10 14:18                 ` poza
2018-05-10 13:17   ` Bjorn Helgaas
2018-05-03  5:03 ` [PATCH v15 4/9] PCI/AER: Rename error recovery to generic PCI naming Oza Pawandeep
2018-05-03  5:03 ` [PATCH v15 5/9] PCI/AER: Factor out error reporting from AER Oza Pawandeep
2018-05-03 21:52   ` kbuild test robot
2018-05-03 22:53   ` kbuild test robot
2018-05-04  6:48   ` poza
2018-05-03  5:03 ` [PATCH v15 6/9] PCI/PORTDRV: Implement generic find service Oza Pawandeep
2018-05-03  5:03 ` [PATCH v15 7/9] PCI/PORTDRV: Implement generic find device Oza Pawandeep
2018-05-10 13:31   ` Bjorn Helgaas
2018-05-03  5:03 ` [PATCH v15 8/9] PCI/DPC: Unify and plumb error handling into DPC Oza Pawandeep
2018-05-10 13:22   ` Bjorn Helgaas
2018-05-10 14:26     ` poza
2018-05-10 16:27       ` Bjorn Helgaas [this message]
2018-05-03  5:03 ` [PATCH v15 9/9] PCI/DPC: Disable ERR_NONFATAL and enable ERR_FATAL for DPC Oza Pawandeep
2018-05-10 13:26   ` Bjorn Helgaas

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