Attachment 315321 Details for Bug 457958 – Critical Bug Fix to Remove Performance Tweak that can Hang some Systems

[patch] Critical Bug Fix to Remove Performance Tweak that can Hang some Systems

rhl53.patchset6.p3.remove-chipset-quirk-workaround.patch (text/plain), 1.76 KB, created by Tony Camuso on 2008-08-29 02:27:48 UTC

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Creator: Tony Camuso

Created: 2008-08-29 02:27:48 UTC

Size: 1.76 KB

patch

obsolete

>Bugzilla
>========
>https://bugzilla.redhat.com/show_bug.cgi?id=457958
>
>Description
>===========
>
>Critical Bug Fix
>
>On AMD servers with certain versions of the Serverworks HT2100, when the 
>upstream driver loads, the PCIe bus may hang. This patch removes a 
>performance optimization which causes the hang.
>
>No kabi symbols affected.
>
>Test Status
>===========
>NetXen has successfully conducted the following tests with these 
>patches applied.  
>. Data Integrity Tests
>. Network Functional Tests
>. Long run Tests
>. Interoperability Tests
>. Performance Tests
>. Regression test 
>. Integration test
>. Unit test
>
>
>Stat
>====
> drivers/net/netxen/netxen_nic_main.c |   10 ----------
> 1 files changed, 0 insertions(+), 10 deletions(-)
>
>Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
>Signed-off-by: Tony Camuso <tcamuso@redhat.com>
>
>Upstream Status
>===============
>The patch has been submitted upstream, but was only posted a day ago. There
>has been no action yet, but we fully expect this patch to be accepted 
>upstream. 
>
>Without this patch, AMD systems with certain versions of the HT2100 chipset
>could hang. 
>
>Please ACK
>
>diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
>index de6f40b..86a141f 100644
>--- a/drivers/net/netxen/netxen_nic_main.c
>+++ b/drivers/net/netxen/netxen_nic_main.c
>@@ -366,16 +366,6 @@ static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
> 	int i, pos;
> 	struct pci_dev *pdev;
> 
>-	pdev = pci_get_device(0x1166, 0x0140, NULL);
>-	if (pdev) {
>-		pci_dev_put(pdev);
>-		adapter->hw_read_wx(adapter,
>-			NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4);
>-		chicken |= 0x4000;
>-		adapter->hw_write_wx(adapter,
>-			NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4);
>-	}
>-
> 	pdev = adapter->pdev;
> 
> 	adapter->hw_read_wx(adapter,

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Attachments on bug 457958: 313475 | 313476 | 313477 | 313478 | 313849 | 313850 | 313851 | 314419 | 314420 | 314421 | 315321