Attachment 299775 Details for Bug 439898 – patch to provide module option for entropy generation

[patch] patch to provide module option for entropy generation

linux-2.6.18-36-bnx2-entropy.patch (text/plain), 1.94 KB, created by Greg Marsden on 2008-03-31 22:02:10 UTC

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Creator: Greg Marsden

Created: 2008-03-31 22:02:10 UTC

Size: 1.94 KB

patch

obsolete

>bnx2: Add SA_SAMPLE_RANDOM flag to bnx2 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/bnx2.c.orig	2007-08-20 22:26:54.000000000 -0700
>+++ linux-2.6.18.x86_64/drivers/net/bnx2.c	2007-08-20 23:13:58.000000000 -0700
>@@ -54,7 +54,7 @@
> 
> #define DRV_MODULE_NAME		"bnx2"
> #define PFX DRV_MODULE_NAME	": "
>-#define DRV_MODULE_VERSION	"1.5.11"
>+#define DRV_MODULE_VERSION	"1.5.11ora"
> #define DRV_MODULE_RELDATE	"June 4, 2007"
> 
> #define RUN_AT(x) (jiffies + (x))
>@@ -75,6 +75,11 @@
> module_param(disable_msi, int, 0);
> MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
> 
>+static int entropy = 0;
>+
>+module_param(entropy, int, 0);
>+MODULE_PARM_DESC(entropy, "Allow bnx2 to populate the /dev/random entropy pool");
>+
> typedef enum {
> 	BCM5706 = 0,
> 	NC370T,
>@@ -4668,16 +4673,30 @@
> 	struct net_device *dev = bp->dev;
> 	int rc = 0;
> 
>-	if (bp->flags & USING_MSI_FLAG) {
>+	if (entropy) {
>+	   if (bp->flags & USING_MSI_FLAG) {
>+
>+		if (bp->flags & ONE_SHOT_MSI_FLAG)
>+			rc = request_irq(bp->pdev->irq, bnx2_msi_1shot, SA_SAMPLE_RANDOM, dev->name, dev);
>+		else
>+			rc = request_irq(bp->pdev->irq, bnx2_msi, SA_SAMPLE_RANDOM, dev->name, dev);
>+
>+	   } else
>+		rc = request_irq(bp->pdev->irq, bnx2_interrupt,
>+				 IRQF_SHARED|SA_SAMPLE_RANDOM, dev->name, dev);
>+	} 
>+	else {
>+	   if (bp->flags & USING_MSI_FLAG) {
> 
> 		if (bp->flags & ONE_SHOT_MSI_FLAG)
> 			rc = request_irq(bp->pdev->irq, bnx2_msi_1shot, 0, dev->name, dev);
> 		else
> 			rc = request_irq(bp->pdev->irq, bnx2_msi, 0, dev->name, dev);
> 
>-	} else
>+	   } else
> 		rc = request_irq(bp->pdev->irq, bnx2_interrupt,
> 				 IRQF_SHARED, dev->name, dev);
>+	}
> 	return rc;
> }
>

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