]> bbs.cooldavid.org Git - jme.git/blobdiff - jme.c
fixv6sum
[jme.git] / jme.c
diff --git a/jme.c b/jme.c
index f9183027313a08cbcac9859cf0e377f44f8d5ab7..387434c5225ea16a3da18faae7f850075cc6529a 100644 (file)
--- a/jme.c
+++ b/jme.c
@@ -163,6 +163,67 @@ jme_setup_wakeup_frame(struct jme_adapter *jme,
        }
 }
 
+static inline void
+jme_mac_rxclk_off(struct jme_adapter *jme)
+{
+       jme->reg_gpreg1 |= GPREG1_RXCLKOFF;
+       jwrite32f(jme, JME_GPREG1, jme->reg_gpreg1);
+}
+
+static inline void
+jme_mac_rxclk_on(struct jme_adapter *jme)
+{
+       jme->reg_gpreg1 &= ~GPREG1_RXCLKOFF;
+       jwrite32f(jme, JME_GPREG1, jme->reg_gpreg1);
+}
+
+static inline void
+jme_mac_txclk_off(struct jme_adapter *jme)
+{
+       jme->reg_ghc &= ~(GHC_TO_CLK_SRC | GHC_TXMAC_CLK_SRC);
+       jwrite32f(jme, JME_GHC, jme->reg_ghc);
+}
+
+static inline void
+jme_mac_txclk_on(struct jme_adapter *jme)
+{
+       u32 speed = jme->reg_ghc & GHC_SPEED;
+       if (speed == GHC_SPEED_1000M)
+               jme->reg_ghc |= GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY;
+       else
+               jme->reg_ghc |= GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE;
+       jwrite32f(jme, JME_GHC, jme->reg_ghc);
+}
+
+static inline void
+jme_reset_ghc_speed(struct jme_adapter *jme)
+{
+       jme->reg_ghc &= ~(GHC_SPEED | GHC_DPX);
+       jwrite32f(jme, JME_GHC, jme->reg_ghc);
+}
+
+static inline void
+jme_reset_250A2_workaround(struct jme_adapter *jme)
+{
+       jme->reg_gpreg1 &= ~(GPREG1_HALFMODEPATCH |
+                            GPREG1_RSSPATCH);
+       jwrite32(jme, JME_GPREG1, jme->reg_gpreg1);
+}
+
+static inline void
+jme_assert_ghc_reset(struct jme_adapter *jme)
+{
+       jme->reg_ghc |= GHC_SWRST;
+       jwrite32f(jme, JME_GHC, jme->reg_ghc);
+}
+
+static inline void
+jme_clear_ghc_reset(struct jme_adapter *jme)
+{
+       jme->reg_ghc &= ~GHC_SWRST;
+       jwrite32f(jme, JME_GHC, jme->reg_ghc);
+}
+
 static inline void
 jme_reset_mac_processor(struct jme_adapter *jme)
 {
@@ -171,9 +232,24 @@ jme_reset_mac_processor(struct jme_adapter *jme)
        u32 gpreg0;
        int i;
 
-       jwrite32(jme, JME_GHC, jme->reg_ghc | GHC_SWRST);
-       udelay(2);
-       jwrite32(jme, JME_GHC, jme->reg_ghc);
+       jme_reset_ghc_speed(jme);
+       jme_reset_250A2_workaround(jme);
+
+       jme_mac_rxclk_on(jme);
+       jme_mac_txclk_on(jme);
+       udelay(1);
+       jme_assert_ghc_reset(jme);
+       udelay(1);
+       jme_mac_rxclk_off(jme);
+       jme_mac_txclk_off(jme);
+       udelay(1);
+       jme_clear_ghc_reset(jme);
+       udelay(1);
+       jme_mac_rxclk_on(jme);
+       jme_mac_txclk_on(jme);
+       udelay(1);
+       jme_mac_rxclk_off(jme);
+       jme_mac_txclk_off(jme);
 
        jwrite32(jme, JME_RXDBA_LO, 0x00000000);
        jwrite32(jme, JME_RXDBA_HI, 0x00000000);
@@ -193,14 +269,6 @@ jme_reset_mac_processor(struct jme_adapter *jme)
        else
                gpreg0 = GPREG0_DEFAULT;
        jwrite32(jme, JME_GPREG0, gpreg0);
-       jwrite32(jme, JME_GPREG1, GPREG1_DEFAULT);
-}
-
-static inline void
-jme_reset_ghc_speed(struct jme_adapter *jme)
-{
-       jme->reg_ghc &= ~(GHC_SPEED_1000M | GHC_DPX);
-       jwrite32(jme, JME_GHC, jme->reg_ghc);
 }
 
 static inline void
@@ -339,13 +407,13 @@ jme_linkstat_from_phy(struct jme_adapter *jme)
 }
 
 static inline void
-jme_set_phyfifoa(struct jme_adapter *jme)
+jme_set_phyfifo_5level(struct jme_adapter *jme)
 {
        jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004);
 }
 
 static inline void
-jme_set_phyfifob(struct jme_adapter *jme)
+jme_set_phyfifo_8level(struct jme_adapter *jme)
 {
        jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000);
 }
@@ -354,7 +422,7 @@ static int
 jme_check_link(struct net_device *netdev, int testonly)
 {
        struct jme_adapter *jme = netdev_priv(netdev);
-       u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr, gpreg1;
+       u32 phylink, cnt = JME_SPDRSV_TIMEOUT, bmcr;
        char linkmsg[64];
        int rc = 0;
 
@@ -417,23 +485,21 @@ jme_check_link(struct net_device *netdev, int testonly)
 
                jme->phylink = phylink;
 
-               ghc = jme->reg_ghc & ~(GHC_SPEED | GHC_DPX |
-                               GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE |
-                               GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY);
+               /*
+                * The speed/duplex setting of jme->reg_ghc already cleared
+                * by jme_reset_mac_processor()
+                */
                switch (phylink & PHY_LINK_SPEED_MASK) {
                case PHY_LINK_SPEED_10M:
-                       ghc |= GHC_SPEED_10M |
-                               GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE;
+                       jme->reg_ghc |= GHC_SPEED_10M;
                        strcat(linkmsg, "10 Mbps, ");
                        break;
                case PHY_LINK_SPEED_100M:
-                       ghc |= GHC_SPEED_100M |
-                               GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE;
+                       jme->reg_ghc |= GHC_SPEED_100M;
                        strcat(linkmsg, "100 Mbps, ");
                        break;
                case PHY_LINK_SPEED_1000M:
-                       ghc |= GHC_SPEED_1000M |
-                               GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY;
+                       jme->reg_ghc |= GHC_SPEED_1000M;
                        strcat(linkmsg, "1000 Mbps, ");
                        break;
                default:
@@ -442,42 +508,40 @@ jme_check_link(struct net_device *netdev, int testonly)
 
                if (phylink & PHY_LINK_DUPLEX) {
                        jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT);
-                       ghc |= GHC_DPX;
+                       jwrite32(jme, JME_TXTRHD, TXTRHD_FULLDUPLEX);
+                       jme->reg_ghc |= GHC_DPX;
                } else {
                        jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT |
                                                TXMCS_BACKOFF |
                                                TXMCS_CARRIERSENSE |
                                                TXMCS_COLLISION);
-                       jwrite32(jme, JME_TXTRHD, TXTRHD_TXPEN |
-                               ((0x2000 << TXTRHD_TXP_SHIFT) & TXTRHD_TXP) |
-                               TXTRHD_TXREN |
-                               ((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL));
+                       jwrite32(jme, JME_TXTRHD, TXTRHD_HALFDUPLEX);
                }
 
-               gpreg1 = GPREG1_DEFAULT;
+               jwrite32(jme, JME_GHC, jme->reg_ghc);
+
                if (is_buggy250(jme->pdev->device, jme->chiprev)) {
+                       jme->reg_gpreg1 &= ~(GPREG1_HALFMODEPATCH |
+                                            GPREG1_RSSPATCH);
                        if (!(phylink & PHY_LINK_DUPLEX))
-                               gpreg1 |= GPREG1_HALFMODEPATCH;
+                               jme->reg_gpreg1 |= GPREG1_HALFMODEPATCH;
                        switch (phylink & PHY_LINK_SPEED_MASK) {
                        case PHY_LINK_SPEED_10M:
-                               jme_set_phyfifoa(jme);
-                               gpreg1 |= GPREG1_RSSPATCH;
+                               jme_set_phyfifo_8level(jme);
+                               jme->reg_gpreg1 |= GPREG1_RSSPATCH;
                                break;
                        case PHY_LINK_SPEED_100M:
-                               jme_set_phyfifob(jme);
-                               gpreg1 |= GPREG1_RSSPATCH;
+                               jme_set_phyfifo_5level(jme);
+                               jme->reg_gpreg1 |= GPREG1_RSSPATCH;
                                break;
                        case PHY_LINK_SPEED_1000M:
-                               jme_set_phyfifoa(jme);
+                               jme_set_phyfifo_8level(jme);
                                break;
                        default:
                                break;
                        }
                }
-
-               jwrite32(jme, JME_GPREG1, gpreg1);
-               jwrite32(jme, JME_GHC, ghc);
-               jme->reg_ghc = ghc;
+               jwrite32(jme, JME_GPREG1, jme->reg_gpreg1);
 
                strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ?
                                        "Full-Duplex, " :
@@ -616,10 +680,14 @@ jme_enable_tx_engine(struct jme_adapter *jme)
         * Enable TX Engine
         */
        wmb();
-       jwrite32(jme, JME_TXCS, jme->reg_txcs |
+       jwrite32f(jme, JME_TXCS, jme->reg_txcs |
                                TXCS_SELECT_QUEUE0 |
                                TXCS_ENABLE);
 
+       /*
+        * Start clock for TX MAC Processor
+        */
+       jme_mac_txclk_on(jme);
 }
 
 static inline void
@@ -654,6 +722,11 @@ jme_disable_tx_engine(struct jme_adapter *jme)
 
        if (!i)
                pr_err("Disable TX engine timeout\n");
+
+       /*
+        * Stop clock for TX MAC Processor
+        */
+       jme_mac_txclk_off(jme);
 }
 
 static void
@@ -831,16 +904,22 @@ jme_enable_rx_engine(struct jme_adapter *jme)
        /*
         * Setup Unicast Filter
         */
+       jme_set_unicastaddr(jme->dev);
        jme_set_multi(jme->dev);
 
        /*
         * Enable RX Engine
         */
        wmb();
-       jwrite32(jme, JME_RXCS, jme->reg_rxcs |
+       jwrite32f(jme, JME_RXCS, jme->reg_rxcs |
                                RXCS_QUEUESEL_Q0 |
                                RXCS_ENABLE |
                                RXCS_QST);
+
+       /*
+        * Start clock for RX MAC Processor
+        */
+       jme_mac_rxclk_on(jme);
 }
 
 static inline void
@@ -877,14 +956,54 @@ jme_disable_rx_engine(struct jme_adapter *jme)
        if (!i)
                pr_err("Disable RX engine timeout\n");
 
+       /*
+        * Stop clock for RX MAC Processor
+        */
+       jme_mac_rxclk_off(jme);
+}
+
+static u16
+jme_udpsum(struct sk_buff *skb)
+{
+       u16 csum = 0xFFFFu;
+
+       if (skb->len < (ETH_HLEN + sizeof(struct iphdr)))
+               return csum;
+       if (skb->protocol != htons(ETH_P_IP))
+               return csum;
+       skb_set_network_header(skb, ETH_HLEN);
+       if ((ip_hdr(skb)->protocol != IPPROTO_UDP) ||
+           (skb->len < (ETH_HLEN +
+                       (ip_hdr(skb)->ihl << 2) +
+                       sizeof(struct udphdr)))) {
+               skb_reset_network_header(skb);
+               return csum;
+       }
+       skb_set_transport_header(skb,
+                       ETH_HLEN + (ip_hdr(skb)->ihl << 2));
+       csum = udp_hdr(skb)->check;
+       skb_reset_transport_header(skb);
+       skb_reset_network_header(skb);
+
+       return csum;
 }
 
 static int
-jme_rxsum_ok(struct jme_adapter *jme, u16 flags)
+jme_rxsum_ok(struct jme_adapter *jme, u16 flags, struct sk_buff *skb)
 {
        if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4)))
                return false;
 
+               /*              Hardware Workaround     , packet is IPv6 but checksum fail              */
+       if (flags & RXWBFLAG_IPV6) {
+       
+               printk("this is IPV6  packet : len=%d ", skb->len);
+               if ((flags & RXWBFLAG_TCPON) && (!(flags & RXWBFLAG_TCPCS)))
+                       return false;
+               if ((flags & RXWBFLAG_UDPON) && (!(flags & RXWBFLAG_UDPCS)))
+                       return false;
+       }
+       
        if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS))
                        == RXWBFLAG_TCPON)) {
                if (flags & RXWBFLAG_IPV4)
@@ -893,7 +1012,7 @@ jme_rxsum_ok(struct jme_adapter *jme, u16 flags)
        }
 
        if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS))
-                       == RXWBFLAG_UDPON)) {
+                       == RXWBFLAG_UDPON) && jme_udpsum(skb)) {
                if (flags & RXWBFLAG_IPV4)
                        netif_err(jme, rx_err, jme->dev, "UDP Checksum error\n");
                return false;
@@ -941,7 +1060,7 @@ jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx)
                skb_put(skb, framesize);
                skb->protocol = eth_type_trans(skb, jme->dev);
 
-               if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags)))
+               if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags), skb))
                        skb->ip_summed = CHECKSUM_UNNECESSARY;
                else
 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,35)
@@ -949,7 +1068,8 @@ jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx)
 #else
                        skb_checksum_none_assert(skb);
 #endif
-
+               printk("flag=%04x , skb->ip_summed =%d \n",le16_to_cpu(rxdesc->descwb.flags), skb->ip_summed);
+               
                if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) {
                        if (jme->vlgrp) {
                                jme->jme_vlan_rx(skb, jme->vlgrp,
@@ -1217,7 +1337,6 @@ jme_link_change_tasklet(unsigned long arg)
        tasklet_disable(&jme->rxempty_task);
 
        if (netif_carrier_ok(netdev)) {
-               jme_reset_ghc_speed(jme);
                jme_disable_rx_engine(jme);
                jme_disable_tx_engine(jme);
                jme_reset_mac_processor(jme);
@@ -1657,7 +1776,7 @@ jme_phy_off(struct jme_adapter *jme)
        jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
 
        if (new_phy_power_ctrl(jme->chip_main_rev))
-               jme_new_phy_off(jme);
+               jme_new_phy_off(jme); 
 }
 
 static int
@@ -1763,7 +1882,6 @@ jme_close(struct net_device *netdev)
        tasklet_disable(&jme->rxclean_task);
        tasklet_disable(&jme->rxempty_task);
 
-       jme_reset_ghc_speed(jme);
        jme_disable_rx_engine(jme);
        jme_disable_tx_engine(jme);
        jme_reset_mac_processor(jme);
@@ -2089,27 +2207,34 @@ jme_start_xmit(struct sk_buff *skb, struct net_device *netdev)
        return NETDEV_TX_OK;
 }
 
+static void
+jme_set_unicastaddr(struct net_device *netdev)
+{
+       struct jme_adapter *jme = netdev_priv(netdev);
+       u32 val;
+
+       val = (netdev->dev_addr[3] & 0xff) << 24 |
+             (netdev->dev_addr[2] & 0xff) << 16 |
+             (netdev->dev_addr[1] & 0xff) <<  8 |
+             (netdev->dev_addr[0] & 0xff);
+       jwrite32(jme, JME_RXUMA_LO, val);
+       val = (netdev->dev_addr[5] & 0xff) << 8 |
+             (netdev->dev_addr[4] & 0xff);
+       jwrite32(jme, JME_RXUMA_HI, val);
+}
+
 static int
 jme_set_macaddr(struct net_device *netdev, void *p)
 {
        struct jme_adapter *jme = netdev_priv(netdev);
        struct sockaddr *addr = p;
-       u32 val;
 
        if (netif_running(netdev))
                return -EBUSY;
 
        spin_lock_bh(&jme->macaddr_lock);
        memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
-
-       val = (addr->sa_data[3] & 0xff) << 24 |
-             (addr->sa_data[2] & 0xff) << 16 |
-             (addr->sa_data[1] & 0xff) <<  8 |
-             (addr->sa_data[0] & 0xff);
-       jwrite32(jme, JME_RXUMA_LO, val);
-       val = (addr->sa_data[5] & 0xff) << 8 |
-             (addr->sa_data[4] & 0xff);
-       jwrite32(jme, JME_RXUMA_HI, val);
+       jme_set_unicastaddr(netdev);
        spin_unlock_bh(&jme->macaddr_lock);
 
        return 0;
@@ -2334,6 +2459,8 @@ jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
        p32 += 0x100 >> 2;
        mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN);
 
+        printk("===jread32=%x===\n",jread32(jme, JME_EXGP2));
+
        p32 += 0x100 >> 2;
        mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN);
 
@@ -2918,7 +3045,7 @@ jme_init_one(struct pci_dev *pdev,
        struct net_device *netdev;
        struct jme_adapter *jme;
        u16 bmcr, bmsr;
-       u32 apmc;
+       u32 apmc, phy_gp2;
 
        /*
         * set up PCI device basics
@@ -3060,6 +3187,7 @@ jme_init_one(struct pci_dev *pdev,
        jme->reg_rxmcs = RXMCS_DEFAULT;
        jme->reg_txpfc = 0;
        jme->reg_pmcs = PMCS_MFEN;
+       jme->reg_gpreg1 = GPREG1_DEFAULT;
        set_bit(JME_FLAG_TXCSUM, &jme->flags);
        set_bit(JME_FLAG_TSO, &jme->flags);
 
@@ -3116,7 +3244,7 @@ jme_init_one(struct pci_dev *pdev,
        jme->mii_if.mdio_write = jme_mdio_write;
 
        jme_clear_pm(jme);
-       jme_set_phyfifoa(jme);
+       jme_set_phyfifo_5level(jme);
        pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->pcirev);
        if (!jme->fpgaver)
                jme_phy_init(jme);
@@ -3133,6 +3261,11 @@ jme_init_one(struct pci_dev *pdev,
        }
        jme_load_macaddr(netdev);
 
+       phy_gp2 = jread32(jme, JME_EXGP2)|FIX_IPV6_CHECKSUM;
+       jwrite32(jme, JME_EXGP2,phy_gp2);
+       wmb();
+       printk("==%x=====\n", jread32(jme, JME_EXGP2)); 
+
        /*
         * Tell stack that we are not ready to work until open()
         */
@@ -3226,7 +3359,6 @@ jme_suspend(struct pci_dev *pdev, pm_message_t state)
                        jme_polling_mode(jme);
 
                jme_stop_pcc_timer(jme);
-               jme_reset_ghc_speed(jme);
                jme_disable_rx_engine(jme);
                jme_disable_tx_engine(jme);
                jme_reset_mac_processor(jme);
@@ -3242,7 +3374,11 @@ jme_suspend(struct pci_dev *pdev, pm_message_t state)
 
        pci_save_state(pdev);
        jme_powersave_phy(jme);
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27)
        pci_enable_wake(pdev, PCI_D3hot, true);
+#else
+       pci_pme_active(pdev, true);
+#endif
        pci_set_power_state(pdev, PCI_D3hot);
 
        return 0;