forcedeth: msi interrupt fix

PATCH In review Ayaz Abdulla 1 participant 1 message Jan 30, 2009

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Ayaz Abdulla

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2009-01-30 22:01 UTC #0 lore raw

PATCH 2/5 forcedeth: msi interrupt fix

This patch fixes an issue with the suspend/resume cycle with msi interrupts. See bugzilla number 10487 for more details. The fix is to re-setup a private msi pci config offset field.

Signed-off-by Ayaz Abdulla <[email protected]>

drivers/net/forcedeth.c +5 -0

@@ -589,6 +589,9 @@
 #define NV_MSI_X_VECTOR_TX    0x1
 #define NV_MSI_X_VECTOR_OTHER 0x2
 
+#define NV_MSI_PRIV_OFFSET 0x68
+#define NV_MSI_PRIV_VALUE  0xffffffff
+
 #define NV_RESTART_TX         0x1
 #define NV_RESTART_RX         0x2

@@ -6057,6 +6060,8 @@
 	for (i = 0;i <= np->register_size/sizeof(u32); i++)
 		writel(np->saved_config_space[i], base+i*sizeof(u32));
 
+	pci_write_config_dword(pdev, NV_MSI_PRIV_OFFSET, NV_MSI_PRIV_VALUE);
+
 	netif_device_attach(dev);
 	if (netif_running(dev)) {
 		rc = nv_open(dev);