spidernet: silence the ramfull messages

Although 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, resulting in a noisy
log in syslog. There is no need for this.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index f5ede5f..0e79bac 100644 (file)
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -1172,7 +1172,7 @@ spider_net_decode_one_descr(struct spider_net_card *card)
                goto bad_desc;
        }
 
-       if (hwdescr->dmac_cmd_status & 0xfefe) {
+       if (hwdescr->dmac_cmd_status & 0xfcf4) {
                pr_err("%s: bad status, cmd_status=x%08x\n",
                               card->netdev->name,
                               hwdescr->dmac_cmd_status);
@@ -1251,6 +1251,7 @@ spider_net_poll(struct net_device *netdev, int *budget)
        if (no_more_packets) {
                netif_rx_complete(netdev);
                spider_net_rx_irq_on(card);
+               card->ignore_rx_ramfull = 0;
                return 0;
        }
 
@@ -1484,15 +1485,15 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg)
        case SPIDER_NET_GRFBFLLINT: /* fallthrough */
        case SPIDER_NET_GRFAFLLINT: /* fallthrough */
        case SPIDER_NET_GRMFLLINT:
-               if (netif_msg_intr(card) && net_ratelimit())
-                       pr_err("Spider RX RAM full, incoming packets "
-                              "might be discarded!\n");
                /* 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;
 
@@ -2265,6 +2266,7 @@ spider_net_setup_netdev(struct spider_net_card *card)
 
        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)

diff --git a/drivers/net/spider_net.h b/drivers/net/spider_net.h
index b620f18..f457bce 100644 (file)
--- a/drivers/net/spider_net.h
+++ b/drivers/net/spider_net.h
@@ -462,6 +462,7 @@ 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;