diff mbox

[net-next-2.6,6/9] ixgb: return PCI_ERS_RESULT_DISCONNECT on permanent failure

Message ID 20090731191340.5470.79342.send-patch@aqua
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Dean Nelson July 31, 2009, 7:13 p.m. UTC
PCI drivers that implement the struct pci_error_handlers' error_detected
callback should return PCI_ERS_RESULT_DISCONNECT if the state passed in is
pci_channel_io_perm_failure. This patch fixes the issue for ixgb.

Signed-off-by: Dean Nelson <dnelson@redhat.com>

---

This patch has not been tested, since I don't have the hardware to test it.
It is based on a few recent patches. See the following commits:

http://git.kernel.org/linus/c93b5a76d58656158d195a7df507ebc660010969
http://git.kernel.org/linus/eab633021c26025b34f36f79f0311d3d99f40ceb
http://git.kernel.org/linus/ef681ce1e8b3e63317cd724c200b2fd39286c005
http://git.kernel.org/linus/59ed6eecff4aa00c5c5d18ffd180acac108d596e
http://git.kernel.org/linus/3044b8d1ff8c05237652a692fb572a34e4d70146

 drivers/net/ixgb/ixgb_main.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

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Comments

Waskiewicz Jr, Peter P July 31, 2009, 7:44 p.m. UTC | #1
On Fri, 31 Jul 2009, Dean Nelson wrote:

> PCI drivers that implement the struct pci_error_handlers' error_detected
> callback should return PCI_ERS_RESULT_DISCONNECT if the state passed in is
> pci_channel_io_perm_failure. This patch fixes the issue for ixgb.
> 
> Signed-off-by: Dean Nelson <dnelson@redhat.com>
> 
> ---
> 
> This patch has not been tested, since I don't have the hardware to test it.
> It is based on a few recent patches. See the following commits:
> 
> http://git.kernel.org/linus/c93b5a76d58656158d195a7df507ebc660010969
> http://git.kernel.org/linus/eab633021c26025b34f36f79f0311d3d99f40ceb
> http://git.kernel.org/linus/ef681ce1e8b3e63317cd724c200b2fd39286c005
> http://git.kernel.org/linus/59ed6eecff4aa00c5c5d18ffd180acac108d596e
> http://git.kernel.org/linus/3044b8d1ff8c05237652a692fb572a34e4d70146
> 
>  drivers/net/ixgb/ixgb_main.c |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
> index eb917f1..fad08ce 100644
> --- a/drivers/net/ixgb/ixgb_main.c
> +++ b/drivers/net/ixgb/ixgb_main.c
> @@ -2227,6 +2227,11 @@ static pci_ers_result_t ixgb_io_error_detected(struct pci_dev *pdev,
>  	struct net_device *netdev = pci_get_drvdata(pdev);
>  	struct ixgb_adapter *adapter = netdev_priv(netdev);
>  
> +	netif_device_detach(netdev);
> +
> +	if (state == pci_channel_io_perm_failure)
> +		return PCI_ERS_RESULT_DISCONNECT;
> +
>  	if (netif_running(netdev))
>  		ixgb_down(adapter, true);

Seems reasonable, especially since the same logic works fine on our other 
drivers.  The hardware for this driver is somewhat difficult to get our 
hands on, but we'll definately give this a spot test once we can locate 
one of these NICs.

Cheers,
-PJ Waskiewicz
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diff mbox

Patch

diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index eb917f1..fad08ce 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -2227,6 +2227,11 @@  static pci_ers_result_t ixgb_io_error_detected(struct pci_dev *pdev,
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct ixgb_adapter *adapter = netdev_priv(netdev);
 
+	netif_device_detach(netdev);
+
+	if (state == pci_channel_io_perm_failure)
+		return PCI_ERS_RESULT_DISCONNECT;
+
 	if (netif_running(netdev))
 		ixgb_down(adapter, true);