From: Jan Glauber <jan.glauber@caviumnetworks.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
david.daney@cavium.com, Jon Masters <jcm@redhat.com>,
Robert Richter <robert.richter@cavium.com>,
linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org
Subject: Re: [PATCH v3 3/3] PCI: Avoid slot reset for Cavium cn8xxx root ports
Date: Thu, 7 Sep 2017 09:49:04 +0200 [thread overview]
Message-ID: <20170907074904.GB13490@hc> (raw)
In-Reply-To: <20170907074011.GA13490@hc>
On Thu, Sep 07, 2017 at 09:40:11AM +0200, Jan Glauber wrote:
> So what if we add an additional check like:
>
> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> index fdf65a6..389db4b 100644
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -4389,6 +4389,9 @@ static bool pci_slot_resetable(struct pci_slot *slot)
> {
> struct pci_dev *dev;
>
> + if (slot->bus->self & PCI_DEV_FLAGS_NO_BUS_RESET)
> + return false;
> +
> list_for_each_entry(dev, &slot->bus->devices, bus_list) {
> if (!dev->slot || dev->slot != slot)
> continue;
Obviously I meant:
if (slot->bus->self->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET)
--Jan
WARNING: multiple messages have this Message-ID (diff)
From: jan.glauber@caviumnetworks.com (Jan Glauber)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 3/3] PCI: Avoid slot reset for Cavium cn8xxx root ports
Date: Thu, 7 Sep 2017 09:49:04 +0200 [thread overview]
Message-ID: <20170907074904.GB13490@hc> (raw)
In-Reply-To: <20170907074011.GA13490@hc>
On Thu, Sep 07, 2017 at 09:40:11AM +0200, Jan Glauber wrote:
> So what if we add an additional check like:
>
> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> index fdf65a6..389db4b 100644
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -4389,6 +4389,9 @@ static bool pci_slot_resetable(struct pci_slot *slot)
> {
> struct pci_dev *dev;
>
> + if (slot->bus->self & PCI_DEV_FLAGS_NO_BUS_RESET)
> + return false;
> +
> list_for_each_entry(dev, &slot->bus->devices, bus_list) {
> if (!dev->slot || dev->slot != slot)
> continue;
Obviously I meant:
if (slot->bus->self->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET)
--Jan
next prev parent reply other threads:[~2017-09-07 7:49 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-30 14:24 [PATCH v3 0/3] Workaround for bus/slot reset on Cavium cn8xxx root ports Jan Glauber
2017-08-30 14:24 ` Jan Glauber
2017-08-30 14:24 ` Jan Glauber
2017-08-30 14:24 ` [PATCH v3 1/3] PCI: Allow PCI_DEV_FLAGS_NO_BUS_RESET to be used on bus device Jan Glauber
2017-08-30 14:24 ` Jan Glauber
2017-08-30 14:24 ` [PATCH v3 2/3] PCI: Avoid bus reset for Cavium cn8xxx root ports Jan Glauber
2017-08-30 14:24 ` Jan Glauber
2017-08-30 14:24 ` Jan Glauber
2017-08-30 14:24 ` [PATCH v3 3/3] PCI: Avoid slot " Jan Glauber
2017-08-30 14:24 ` Jan Glauber
2017-08-30 14:40 ` Alex Williamson
2017-08-30 14:40 ` Alex Williamson
2017-08-31 9:40 ` Jan Glauber
2017-08-31 9:40 ` Jan Glauber
2017-08-31 9:40 ` Jan Glauber
2017-08-31 16:01 ` Alex Williamson
2017-08-31 16:01 ` Alex Williamson
2017-08-31 16:01 ` Alex Williamson
2017-09-07 7:40 ` Jan Glauber
2017-09-07 7:40 ` Jan Glauber
2017-09-07 7:40 ` Jan Glauber
2017-09-07 7:49 ` Jan Glauber [this message]
2017-09-07 7:49 ` Jan Glauber
2017-09-07 16:52 ` Alex Williamson
2017-09-07 16:52 ` Alex Williamson
2017-09-07 16:52 ` Alex Williamson
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