Attachment 299776 Details for Bug 439898 – e1000 entropy enable module option patch

[patch] e1000 entropy enable module option patch

linux-2.6.18-36-e1000-entropy.patch (text/plain), 1.50 KB, created by Greg Marsden on 2008-03-31 22:02:59 UTC

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Creator: Greg Marsden

Created: 2008-03-31 22:02:59 UTC

Size: 1.50 KB

patch

obsolete

>e1000: Add SA_SAMPLE_RANDOM flag to e1000 as a module option
>
>This patch allows for the bnx2 to add to the /dev/random entropy pool
>via a module parameter, entropy.
>
>0 - default for EL5 - do not populate the entropy pool
>1 - optional  - Uses SA_SAMPLE_RANDOM flag on request_irq calls to populate
>                the /dev/random pool
>
>Signed-off-by: John Sobecki <john.sobecki@oracle.com>
>
>--- linux-2.6.18.x86_64/drivers/net/e1000/e1000_main.c.orig	2007-08-20 23:20:31.000000000 -0700
>+++ linux-2.6.18.x86_64/drivers/net/e1000/e1000_main.c	2007-08-20 23:26:53.000000000 -0700
>@@ -36,7 +36,7 @@
> #else
> #define DRIVERNAPI "-NAPI"
> #endif
>-#define DRV_VERSION "7.3.20-k2"DRIVERNAPI
>+#define DRV_VERSION "7.3.20-k2ora"DRIVERNAPI
> char e1000_driver_version[] = DRV_VERSION;
> static char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
> 
>@@ -252,6 +252,10 @@
> module_param(debug, int, 0);
> MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
> 
>+static int entropy = 0;
>+module_param(entropy, int, 0);
>+MODULE_PARM_DESC(entropy, "Allow e1000 to populate the /dev/random entropy pool");
>+
> /**
>  * e1000_init_module - Driver Registration Routine
>  *
>@@ -300,8 +304,12 @@
> {
> 	struct net_device *netdev = adapter->netdev;
> 	void (*handler) = &e1000_intr;
>-	int irq_flags = IRQF_SHARED;
>-	int err;
>+	int irq_flags, err;
>+
>+	if (entropy)
>+		irq_flags = IRQF_SHARED|SA_SAMPLE_RANDOM;
>+	else 
>+		irq_flags = IRQF_SHARED;
> 
> 	if (adapter->hw.mac_type >= e1000_82571) {
> 		adapter->have_msi = !pci_enable_msi(adapter->pdev);

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Attachments on bug 439898: 299775 | 299776 | 327424 | 327433