X-Git-Url: http://bbs.cooldavid.org/git/?a=blobdiff_plain;f=jme.c;h=9da34cb4fb6304d0423a48e24b9dc4060684605d;hb=refs%2Ftags%2Fbp-1.0.8.2;hp=fb41bbeb786ed2c89e94a08c180b69a722c5575e;hpb=8588b84ba1ccfa3e442fe44cf5cc3e6c49a6d430;p=jme.git

diff --git a/jme.c b/jme.c
index fb41bbe..9da34cb 100644
--- a/jme.c
+++ b/jme.c
@@ -59,6 +59,7 @@ module_param(no_extplug, int, 0);
 MODULE_PARM_DESC(no_extplug,
 	"Do not use external plug signal for pseudo hot-plug.");
 
+#ifndef JME_NEW_PM_API
 static void
 jme_pci_wakeup_enable(struct jme_adapter *jme, int enable)
 {
@@ -71,6 +72,7 @@ jme_pci_wakeup_enable(struct jme_adapter *jme, int enable)
 	pci_pme_active(jme->pdev, enable);
 #endif
 }
+#endif
 
 static int
 jme_mdio_read(struct net_device *netdev, int phy, int reg)
@@ -767,6 +769,7 @@ jme_make_new_rx_buf(struct jme_adapter *jme, int i)
 	struct jme_ring *rxring = &(jme->rxring[0]);
 	struct jme_buffer_info *rxbi = rxring->bufinf + i;
 	struct sk_buff *skb;
+	dma_addr_t mapping;
 
 	skb = netdev_alloc_skb(jme->dev,
 		jme->dev->mtu + RX_EXTRA_LEN);
@@ -776,14 +779,21 @@ jme_make_new_rx_buf(struct jme_adapter *jme, int i)
 	skb->dev = jme->dev;
 #endif
 
+	mapping = pci_map_page(jme->pdev, virt_to_page(skb->data),
+			       offset_in_page(skb->data), skb_tailroom(skb),
+			       PCI_DMA_FROMDEVICE);
+	if (unlikely(pci_dma_mapping_error(jme->pdev, mapping))) {
+		dev_kfree_skb(skb);
+		return -ENOMEM;
+	}
+
+	if (likely(rxbi->mapping))
+		pci_unmap_page(jme->pdev, rxbi->mapping,
+			       rxbi->len, PCI_DMA_FROMDEVICE);
+
 	rxbi->skb = skb;
 	rxbi->len = skb_tailroom(skb);
-	rxbi->mapping = pci_map_page(jme->pdev,
-					virt_to_page(skb->data),
-					offset_in_page(skb->data),
-					rxbi->len,
-					PCI_DMA_FROMDEVICE);
-
+	rxbi->mapping = mapping;
 	return 0;
 }
 
@@ -977,11 +987,29 @@ static u16
 jme_udpsum(struct sk_buff *skb)
 {
 	u16 csum = 0xFFFFu;
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21)
+	struct iphdr *iph;
+	int iphlen;
+	struct udphdr *udph;
+#endif
 
 	if (skb->len < (ETH_HLEN + sizeof(struct iphdr)))
 		return csum;
 	if (skb->protocol != htons(ETH_P_IP))
 		return csum;
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21)
+	iph = (struct iphdr *)skb_pull(skb, ETH_HLEN);
+	iphlen = (iph->ihl << 2);
+	if ((iph->protocol != IPPROTO_UDP) ||
+	    (skb->len < (iphlen + sizeof(struct udphdr)))) {
+		skb_push(skb, ETH_HLEN);
+		return csum;
+	}
+	udph = (struct udphdr *)skb_pull(skb, iphlen);
+	csum = udph->check;
+	skb_push(skb, iphlen);
+	skb_push(skb, ETH_HLEN);
+#else
 	skb_set_network_header(skb, ETH_HLEN);
 	if ((ip_hdr(skb)->protocol != IPPROTO_UDP) ||
 	    (skb->len < (ETH_HLEN +
@@ -995,6 +1023,7 @@ jme_udpsum(struct sk_buff *skb)
 	csum = udp_hdr(skb)->check;
 	skb_reset_transport_header(skb);
 	skb_reset_network_header(skb);
+#endif
 
 	return csum;
 }
@@ -1854,11 +1883,9 @@ jme_powersave_phy(struct jme_adapter *jme)
 {
 	if (jme->reg_pmcs) {
 		jme_set_100m_half(jme);
-
 		if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
 			jme_wait_link(jme);
-
-		jwrite32(jme, JME_PMCS, jme->reg_pmcs);
+		jme_clear_pm(jme);
 	} else {
 		jme_phy_off(jme);
 	}
@@ -2157,7 +2184,8 @@ jme_stop_queue_if_full(struct jme_adapter *jme)
 			(jiffies - txbi->start_xmit) >= TX_TIMEOUT &&
 			txbi->skb)) {
 		netif_stop_queue(jme->dev);
-		netif_info(jme, tx_queued, jme->dev, "TX Queue Stopped %d@%lu\n", idx, jiffies);
+		netif_info(jme, tx_queued, jme->dev,
+			   "TX Queue Stopped %d@%lu\n", idx, jiffies);
 	}
 }
 
@@ -2640,13 +2668,13 @@ jme_set_wol(struct net_device *netdev,
 		jme->reg_pmcs |= PMCS_MFEN;
 
 	jwrite32(jme, JME_PMCS, jme->reg_pmcs);
-
 #ifndef JME_NEW_PM_API
 	jme_pci_wakeup_enable(jme, !!(jme->reg_pmcs));
 #endif
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
 	device_set_wakeup_enable(&jme->pdev->dev, !!(jme->reg_pmcs));
 #endif
+
 	return 0;
 }
 
@@ -3196,15 +3224,6 @@ jme_init_one(struct pci_dev *pdev,
 	set_bit(JME_FLAG_TXCSUM, &jme->flags);
 	set_bit(JME_FLAG_TSO, &jme->flags);
 
-	jme_clear_pm(jme);
-	pci_set_power_state(jme->pdev, PCI_D0);
-#ifndef JME_NEW_PM_API
-	jme_pci_wakeup_enable(jme, true);
-#endif
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
-	device_set_wakeup_enable(&jme->pdev->dev, true);
-#endif
-
 	/*
 	 * Get Max Read Req Size from PCI Config Space
 	 */
@@ -3257,6 +3276,15 @@ jme_init_one(struct pci_dev *pdev,
 	jme->mii_if.mdio_read = jme_mdio_read;
 	jme->mii_if.mdio_write = jme_mdio_write;
 
+	jme_clear_pm(jme);
+	pci_set_power_state(jme->pdev, PCI_D0);
+#ifndef JME_NEW_PM_API
+	jme_pci_wakeup_enable(jme, true);
+#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+	device_set_wakeup_enable(&pdev->dev, true);
+#endif
+
 	jme_set_phyfifo_5level(jme);
 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,22)
 	pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->pcirev);
@@ -3341,15 +3369,13 @@ jme_shutdown(struct pci_dev *pdev)
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct jme_adapter *jme = netdev_priv(netdev);
 
-	if (jme->reg_pmcs) {
-		jme_powersave_phy(jme);
-		jme_pci_wakeup_enable(jme, true);
+	jme_powersave_phy(jme);
+#ifndef JME_NEW_PM_API
+	jme_pci_wakeup_enable(jme, !!(jme->reg_pmcs));
+#endif
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
-		device_set_wakeup_enable(&jme->pdev->dev, true);
+	device_set_wakeup_enable(&jme->pdev->dev, !!(jme->reg_pmcs));
 #endif
-	} else {
-		jme_phy_off(jme);
-	}
 }
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
@@ -3407,10 +3433,9 @@ jme_suspend(struct pci_dev *pdev, pm_message_t state)
 	jme_powersave_phy(jme);
 #ifndef JME_NEW_PM_API
 	pci_save_state(pdev);
-	jme_pci_wakeup_enable(jme, true);
+	jme_pci_wakeup_enable(jme, !!(jme->reg_pmcs));
 	pci_set_power_state(pdev, PCI_D3hot);
 #endif
-	jme_clear_pm(jme);
 
 	return 0;
 }
@@ -3450,14 +3475,14 @@ jme_resume(struct pci_dev *pdev)
 	return 0;
 }
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,38)
+#ifdef JME_NEW_PM_API
 static SIMPLE_DEV_PM_OPS(jme_pm_ops, jme_suspend, jme_resume);
 #define JME_PM_OPS (&jme_pm_ops)
 #endif
 
 #else
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,38)
+#ifdef JME_NEW_PM_API
 #define JME_PM_OPS NULL
 #endif
 #endif
@@ -3478,7 +3503,7 @@ static struct pci_driver jme_driver = {
 	.probe          = jme_init_one,
 	.remove         = __devexit_p(jme_remove_one),
 	.shutdown       = jme_shutdown,
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,38)
+#ifndef JME_NEW_PM_API
 	.suspend        = jme_suspend,
 	.resume         = jme_resume
 #else