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Commit f181137f authored by Brice Goglin's avatar Brice Goglin Committed by Jeff Garzik
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myri10ge: limit the number of recoveries 



Limit the number of recoveries from a NIC hw watchdog reset to 1 by default.
It enables detection of defective NICs immediately since these memory parity
errors are expected to happen very rarely (less than once per century*NIC).

Signed-off-by: default avatarBrice Goglin <brice@myri.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent c27e6721

drivers/net/myri10ge/myri10ge.c

+10 −2
Original line number Diff line number Diff line
@@ -279,6 +279,8 @@ static int myri10ge_fill_thresh = 256; 
module_param(myri10ge_fill_thresh, int, S_IRUGO | S_IWUSR);

MODULE_PARM_DESC(myri10ge_fill_thresh, "Number of empty rx slots allowed\n");



static int myri10ge_reset_recover = 1;



static int myri10ge_wcfifo = 0;

module_param(myri10ge_wcfifo, int, S_IRUGO);

MODULE_PARM_DESC(myri10ge_wcfifo, "Enable WC Fifo when WC is enabled\n");
@@ -2730,8 +2732,14 @@ static void myri10ge_watchdog(struct work_struct *work) 
		 * For now, just report it */

		reboot = myri10ge_read_reboot(mgp);

		printk(KERN_ERR

		       "myri10ge: %s: NIC rebooted (0x%x), resetting\n",

		       mgp->dev->name, reboot);

		       "myri10ge: %s: NIC rebooted (0x%x),%s resetting\n",

		       mgp->dev->name, reboot,

		       myri10ge_reset_recover ? " " : " not");

		if (myri10ge_reset_recover == 0)

			return;



		myri10ge_reset_recover--;



		/*

		 * A rebooted nic will come back with config space as

		 * it was after power was applied to PCIe bus.