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Date:	Thu, 7 Jun 2007 14:53:47 -0500
From:	linas@...tin.ibm.com (Linas Vepstas)
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	cbe-oss-dev@...abs.org, netdev@...r.kernel.org
Subject: [PATCH 14/18] spidernet: silence the ramfull messages


Altough the previous patch resolved issues with hangs when the
RX ram full interrupt is encountered, there are still situations
where lots of RX ramfull interrupts arrive, rsulting in a noisy
log in syslog. There is no need for this.

Signed-off-by: Linas Vepstas <linas@...tin.ibm.com>

----
 drivers/net/spider_net.c |   20 ++++++++++----------
 drivers/net/spider_net.h |    3 ++-
 2 files changed, 12 insertions(+), 11 deletions(-)

Index: linux-2.6.22-rc1/drivers/net/spider_net.c
===================================================================
--- linux-2.6.22-rc1.orig/drivers/net/spider_net.c	2007-06-07 11:53:55.000000000 -0500
+++ linux-2.6.22-rc1/drivers/net/spider_net.c	2007-06-07 11:56:10.000000000 -0500
@@ -1314,6 +1314,7 @@ spider_net_poll(struct net_device *netde
 	if (no_more_packets) {
 		netif_rx_complete(netdev);
 		spider_net_rx_irq_on(card);
+		card->ignore_rx_ramfull = 0;
 		return 0;
 	}
 
@@ -1584,17 +1585,15 @@ spider_net_handle_error_irq(struct spide
 	case SPIDER_NET_GRFBFLLINT: /* fallthrough */
 	case SPIDER_NET_GRFAFLLINT: /* fallthrough */
 	case SPIDER_NET_GRMFLLINT:
-		if (netif_msg_intr(card) && net_ratelimit()) {
-			dev_info(&card->netdev->dev, "Spider RX RAM full, "
-			        "incoming packets might be discarded!\n");
-			show_rx_chain(card);
-		}
 		/* Could happen when rx chain is full */
-		spider_net_resync_head_ptr(card);
-		spider_net_refill_rx_chain(card);
-		spider_net_enable_rxdmac(card);
-		card->num_rx_ints ++;
-		netif_rx_schedule(card->netdev);
+		if (card->ignore_rx_ramfull == 0) {
+			card->ignore_rx_ramfull = 1;
+			spider_net_resync_head_ptr(card);
+			spider_net_refill_rx_chain(card);
+			spider_net_enable_rxdmac(card);
+			card->num_rx_ints ++;
+			netif_rx_schedule(card->netdev);
+		}
 		show_error = 0;
 		break;
 
@@ -2374,6 +2373,7 @@ spider_net_setup_netdev(struct spider_ne
 
 	netdev->irq = card->pdev->irq;
 	card->num_rx_ints = 0;
+	card->ignore_rx_ramfull = 0;
 
 	dn = pci_device_to_OF_node(card->pdev);
 	if (!dn)
Index: linux-2.6.22-rc1/drivers/net/spider_net.h
===================================================================
--- linux-2.6.22-rc1.orig/drivers/net/spider_net.h	2007-06-07 11:52:35.000000000 -0500
+++ linux-2.6.22-rc1/drivers/net/spider_net.h	2007-06-07 11:55:06.000000000 -0500
@@ -164,7 +164,7 @@ extern char spider_net_driver_name[];
 
 /** interrupt mask registers */
 #define SPIDER_NET_INT0_MASK_VALUE	0x3f7fe2c7
-#define SPIDER_NET_INT1_MASK_VALUE	0xffff7ff7
+#define SPIDER_NET_INT1_MASK_VALUE	0xffff5ff5
 /* no MAC aborts -> auto retransmission */
 #define SPIDER_NET_INT2_MASK_VALUE	0xffef7ff1
 
@@ -467,6 +467,7 @@ struct spider_net_card {
 	atomic_t tx_timeout_task_counter;
 	wait_queue_head_t waitq;
 	int num_rx_ints;
+	int ignore_rx_ramfull;
 
 	/* for ethtool */
 	int msg_enable;
-
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