1 files changed, 14 insertions, 6 deletions

diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index d64e718afbd2..46a009085f7c 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -317,7 +317,7 @@ spider_net_init_chain(struct spider_net_card *card,
 				     SPIDER_NET_DESCR_SIZE,
 				     direction);
 
-		if (buf == DMA_ERROR_CODE)
+		if (pci_dma_mapping_error(buf))
 			goto iommu_error;
 
 		descr->bus_addr = buf;
@@ -403,6 +403,7 @@ spider_net_prepare_rx_descr(struct spider_net_card *card,
 	if (!descr->skb) {
 		if (netif_msg_rx_err(card) && net_ratelimit())
 			pr_err("Not enough memory to allocate rx buffer\n");
+		card->spider_stats.alloc_rx_skb_error++;
 		return -ENOMEM;
 	}
 	descr->buf_size = bufsize;
@@ -419,10 +420,11 @@ spider_net_prepare_rx_descr(struct spider_net_card *card,
 	buf = pci_map_single(card->pdev, descr->skb->data,
 			SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
 	descr->buf_addr = buf;
-	if (buf == DMA_ERROR_CODE) {
+	if (pci_dma_mapping_error(buf)) {
 		dev_kfree_skb_any(descr->skb);
 		if (netif_msg_rx_err(card) && net_ratelimit())
 			pr_err("Could not iommu-map rx buffer\n");
+		card->spider_stats.rx_iommu_map_error++;
 		descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
 	} else {
 		descr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED |
@@ -647,10 +649,11 @@ spider_net_prepare_tx_descr(struct spider_net_card *card,
 	dma_addr_t buf;
 
 	buf = pci_map_single(card->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);
-	if (buf == DMA_ERROR_CODE) {
+	if (pci_dma_mapping_error(buf)) {
 		if (netif_msg_tx_err(card) && net_ratelimit())
 			pr_err("could not iommu-map packet (%p, %i). "
 				  "Dropping packet\n", skb->data, skb->len);
+		card->spider_stats.tx_iommu_map_error++;
 		return -ENOMEM;
 	}
 
@@ -818,6 +821,7 @@ spider_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 	}
 
 	if (spider_net_get_descr_status(descr) != SPIDER_NET_DESCR_NOT_IN_USE) {
+		card->netdev_stats.tx_dropped++;
 		result = NETDEV_TX_LOCKED;
 		goto out;
 	}
@@ -913,6 +917,7 @@ spider_net_pass_skb_up(struct spider_net_descr *descr,
 			pr_err("error in received descriptor found, "
 			       "data_status=x%08x, data_error=x%08x\n",
 			       data_status, data_error);
+		card->spider_stats.rx_desc_error++;
 		return 0;
 	}
 
@@ -1010,9 +1015,11 @@ spider_net_decode_one_descr(struct spider_net_card *card, int napi)
 
 	if ( (status != SPIDER_NET_DESCR_COMPLETE) &&
 	     (status != SPIDER_NET_DESCR_FRAME_END) ) {
-		if (netif_msg_rx_err(card))
+		if (netif_msg_rx_err(card)) {
 			pr_err("%s: RX descriptor with state %d\n",
 			       card->netdev->name, status);
+			card->spider_stats.rx_desc_unk_state++;
+		}
 		goto refill;
 	}
 
@@ -1438,7 +1445,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg)
  * interrupts for this device and makes the stack poll the driver
  */
 static irqreturn_t
-spider_net_interrupt(int irq, void *ptr, struct pt_regs *regs)
+spider_net_interrupt(int irq, void *ptr)
 {
 	struct net_device *netdev = ptr;
 	struct spider_net_card *card = netdev_priv(netdev);
@@ -1474,7 +1481,7 @@ static void
 spider_net_poll_controller(struct net_device *netdev)
 {
 	disable_irq(netdev->irq);
-	spider_net_interrupt(netdev->irq, netdev, NULL);
+	spider_net_interrupt(netdev->irq, netdev);
 	enable_irq(netdev->irq);
 }
 #endif /* CONFIG_NET_POLL_CONTROLLER */
@@ -1934,6 +1941,7 @@ spider_net_tx_timeout(struct net_device *netdev)
 		schedule_work(&card->tx_timeout_task);
 	else
 		atomic_dec(&card->tx_timeout_task_counter);
+	card->spider_stats.tx_timeouts++;
 }
 
 /**