Changeset 5 for gpxe_study

Timestamp:

Feb 19, 2008, 5:03:59 PM (17 years ago)

Author:

wade

Message:

 

File:

• gpxe_study/kernel_2.6.20_src/sis900.c (modified) (7 diffs)

gpxe_study/kernel_2.6.20_src/sis900.c

@@ -974 +974 @@
     /* Equalizer workaround Rule */
     sis630_set_eq(net_dev, sis_priv->chipset_rev);
-    ret = request_irq(net_dev->irq, &sis900_interrupt, IRQF_SHARED,
-            net_dev->name, net_dev);
+    ret = request_irq(net_dev->irq, &sis900_interrupt, IRQF_SHARED, net_dev->name, net_dev);
     if (ret)
         return ret;
+
 
     sis900_init_rxfilter(net_dev);
@@ -1094 +1094 @@
 {
     u32 rfcrSave;
-  struct sis900_private *sis_priv = net_dev->priv;
-  long ioaddr = net_dev->base_addr;
-  u32 i;
+    struct sis900_private *sis_priv = net_dev->priv;
+    long ioaddr = net_dev->base_addr;
+    u32 i;
     rfcrSave = inl(rfcr + ioaddr);
 
@@ -1130 +1130 @@
 sis900_init_tx_ring(struct net_device *net_dev)
 {
-  struct sis900_private *sis_priv = net_dev->priv;
-  long ioaddr = net_dev->base_addr;
-  int i;
-
-  sis_priv->tx_full = 0;
-  sis_priv->dirty_tx = sis_priv->cur_tx = 0;
-
-  for (i = 0; i < NUM_TX_DESC; i++) {
-    sis_priv->tx_skbuff[i] = NULL;
-
-    sis_priv->tx_ring[i].link = sis_priv->tx_ring_dma +
-      ((i+1)%NUM_TX_DESC)*sizeof(BufferDesc);
-    sis_priv->tx_ring[i].cmdsts = 0;
+    struct sis900_private *sis_priv = net_dev->priv;
+    long ioaddr = net_dev->base_addr;
+    int i;
+    sis_priv->tx_full = 0;
+    sis_priv->dirty_tx = sis_priv->cur_tx = 0;
+    for (i = 0; i < NUM_TX_DESC; i++) {
+        sis_priv->tx_skbuff[i] = NULL;
+  sis_priv->tx_ring[i].link = sis_priv->tx_ring_dma +
+    ((i+1)%NUM_TX_DESC)*sizeof(BufferDesc);
+  sis_priv->tx_ring[i].cmdsts = 0;
     sis_priv->tx_ring[i].bufptr = 0;
-  }
-
-  /* load Transmit Descriptor Register */
-  outl(sis_priv->tx_ring_dma, ioaddr + txdp);
-  if (netif_msg_hw(sis_priv))
-    printk(KERN_DEBUG "%s: TX descriptor register loaded with: %8.8x\n",
-           net_dev->name, inl(ioaddr + txdp));
+    }
+
+    /* load Transmit Descriptor Register */
+    outl(sis_priv->tx_ring_dma, ioaddr + txdp);
+    if (netif_msg_hw(sis_priv))
+        printk(KERN_DEBUG "%s: TX descriptor register loaded with: %8.8x\n",
+              net_dev->name, inl(ioaddr + txdp));
 }
 
@@ -1206 +1203 @@
     printk(KERN_DEBUG "%s: RX descriptor register loaded with: %8.8x\n",
            net_dev->name, inl(ioaddr + rxdp));
+}
+
+/**
+ *  set_rx_mode - Set SiS900 receive mode
+ *  @net_dev: the net device to be set
+ *
+ *  Set SiS900 receive mode for promiscuous, multicast, or broadcast mode.
+ *  And set the appropriate multicast filter.
+ *  Multicast hash table changes from 128 to 256 bits for 635M/B & 900B0.
+ */
+
+static void set_rx_mode(struct net_device *net_dev)
+{
+    int i, table_entries;
+    u32 rx_mode; 
+    long ioaddr = net_dev->base_addr;
+    struct sis900_private * sis_priv = net_dev->priv;
+    u16 mc_filter[16] = {0};  /* 256/128 bits multicast hash table */
+    /* 635 Hash Table entries = 256(2^16) */
+      
+    if((sis_priv->chipset_rev >= SIS635A_900_REV) || (sis_priv->chipset_rev == SIS900B_900_REV))
+  table_entries = 16;
+    else
+  table_entries = 8;
+    if (net_dev->flags & IFF_PROMISC) {
+    /* Accept any kinds of packets */
+        rx_mode = RFPromiscuous;
+        for (i = 0; i < table_entries; i++)
+      mc_filter[i] = 0xffff;
+    } else if ((net_dev->mc_count > multicast_filter_limit) || (net_dev->flags & IFF_ALLMULTI)) {
+
+    /* too many multicast addresses or accept all multicast packet */
+    rx_mode = RFAAB | RFAAM;
+    for (i = 0; i < table_entries; i++)
+    mc_filter[i] = 0xffff;
+          
+    } else {
+  /* Accept Broadcast packet, destination address matchs our
+   * MAC address, use Receive Filter to reject unwanted MCAST
+   * packets */
+  struct dev_mc_list *mclist;
+  rx_mode = RFAAB;
+  for (i = 0, mclist = net_dev->mc_list;
+    mclist && i < net_dev->mc_count;
+    i++, mclist = mclist->next) {
+    unsigned int bit_nr = sis900_mcast_bitnr(mclist->dmi_addr, sis_priv->chipset_rev);
+    mc_filter[bit_nr >> 4] |= (1 << (bit_nr & 0xf));
+        }
+    }
+    /* update Multicast Hash Table in Receive Filter */
+    for (i = 0; i < table_entries; i++) {
+        /* why plus 0x04 ??, That makes the correct value for hash table. */
+        outl((u32)(0x00000004+i) << RFADDR_shift, ioaddr + rfcr);
+        outl(mc_filter[i], ioaddr + rfdr);
+    }
+
+    outl(RFEN | rx_mode, ioaddr + rfcr);
+
+    /* sis900 is capable of looping back packets at MAC level for
+     * debugging purpose */
+    if (net_dev->flags & IFF_LOOPBACK) {
+  u32 cr_saved;
+  /* We must disable Tx/Rx before setting loopback mode */
+  cr_saved = inl(ioaddr + cr);
+  outl(cr_saved | TxDIS | RxDIS, ioaddr + cr);
+  /* enable loopback */
+  outl(inl(ioaddr + txcfg) | TxMLB, ioaddr + txcfg);
+  outl(inl(ioaddr + rxcfg) | RxATX, ioaddr + rxcfg);
+  /* restore cr */
+  outl(cr_saved, ioaddr + cr);
+    }
+
+    return;
+}
+
+
+/* Function: sis900_check_mode
+ *
+ * - check the media mode for sis900
+ *  @net_dev: the net device to be checked
+ *  @mii_phy: the mii phy
+ *
+ *  Older driver gets the media mode from mii status output
+ *  register. Now we set our media capability and auto-negotiate
+ *  to get the upper bound of speed and duplex between two ends.
+ *  If the types of mii phy is HOME, it doesn't need to auto-negotiate
+ *  and autong_complete should be set to 1.
+ * Returns:   void.
+ */
+
+static void
+sis900_check_mode(struct net_device *net_dev, struct mii_phy *mii_phy)
+{
+    int speed, duplex;
+    struct sis900_private *sis_priv = net_dev->priv;
+    long ioaddr = net_dev->base_addr;
+
+  if (mii_phy->phy_types == LAN) {
+    outl(~EXD & inl(ioaddr + cfg), ioaddr + cfg);
+    sis900_set_capability(net_dev , mii_phy);
+    sis900_auto_negotiate(net_dev, sis_priv->cur_phy);
+  } else {
+    outl(EXD | inl(ioaddr + cfg), ioaddr + cfg);
+    speed = HW_SPEED_HOME;
+    duplex = FDX_CAPABLE_HALF_SELECTED;
+    sis900_set_mode(ioaddr, speed, duplex);
+    sis_priv->autong_complete = 1;
+  }
 }
 
@@ -1299 +1404 @@
 }
 
+
 /**
  *  sis900_timer - sis900 timer routine
@@ -1366 +1472 @@
 }
 
-/**
- *  sis900_check_mode - check the media mode for sis900
- *  @net_dev: the net device to be checked
- *  @mii_phy: the mii phy
- *
- *  Older driver gets the media mode from mii status output
- *  register. Now we set our media capability and auto-negotiate
- *  to get the upper bound of speed and duplex between two ends.
- *  If the types of mii phy is HOME, it doesn't need to auto-negotiate
- *  and autong_complete should be set to 1.
- */
-
-static void sis900_check_mode(struct net_device *net_dev, struct mii_phy *mii_phy)
-{
-  struct sis900_private *sis_priv = net_dev->priv;
-  long ioaddr = net_dev->base_addr;
-  int speed, duplex;
-
-  if (mii_phy->phy_types == LAN) {
-    outl(~EXD & inl(ioaddr + cfg), ioaddr + cfg);
-    sis900_set_capability(net_dev , mii_phy);
-    sis900_auto_negotiate(net_dev, sis_priv->cur_phy);
-  } else {
-    outl(EXD | inl(ioaddr + cfg), ioaddr + cfg);
-    speed = HW_SPEED_HOME;
-    duplex = FDX_CAPABLE_HALF_SELECTED;
-    sis900_set_mode(ioaddr, speed, duplex);
-    sis_priv->autong_complete = 1;
-  }
-}
 
 /**
@@ -2315 +2391 @@
 }
 
-/**
- *  set_rx_mode - Set SiS900 receive mode
- *  @net_dev: the net device to be set
- *
- *  Set SiS900 receive mode for promiscuous, multicast, or broadcast mode.
- *  And set the appropriate multicast filter.
- *  Multicast hash table changes from 128 to 256 bits for 635M/B & 900B0.
- */
-
-static void set_rx_mode(struct net_device *net_dev)
-{
-  long ioaddr = net_dev->base_addr;
-  struct sis900_private * sis_priv = net_dev->priv;
-  u16 mc_filter[16] = {0};  /* 256/128 bits multicast hash table */
-  int i, table_entries;
-  u32 rx_mode;
-
-  /* 635 Hash Table entries = 256(2^16) */
-  if((sis_priv->chipset_rev >= SIS635A_900_REV) ||
-      (sis_priv->chipset_rev == SIS900B_900_REV))
-    table_entries = 16;
-  else
-    table_entries = 8;
-
-  if (net_dev->flags & IFF_PROMISC) {
-    /* Accept any kinds of packets */
-    rx_mode = RFPromiscuous;
-    for (i = 0; i < table_entries; i++)
-      mc_filter[i] = 0xffff;
-  } else if ((net_dev->mc_count > multicast_filter_limit) ||
-       (net_dev->flags & IFF_ALLMULTI)) {
-    /* too many multicast addresses or accept all multicast packet */
-    rx_mode = RFAAB | RFAAM;
-    for (i = 0; i < table_entries; i++)
-      mc_filter[i] = 0xffff;
-  } else {
-    /* Accept Broadcast packet, destination address matchs our
-     * MAC address, use Receive Filter to reject unwanted MCAST
-     * packets */
-    struct dev_mc_list *mclist;
-    rx_mode = RFAAB;
-    for (i = 0, mclist = net_dev->mc_list;
-      mclist && i < net_dev->mc_count;
-      i++, mclist = mclist->next) {
-      unsigned int bit_nr =
-        sis900_mcast_bitnr(mclist->dmi_addr, sis_priv->chipset_rev);
-      mc_filter[bit_nr >> 4] |= (1 << (bit_nr & 0xf));
-    }
-  }
-
-  /* update Multicast Hash Table in Receive Filter */
-  for (i = 0; i < table_entries; i++) {
-                /* why plus 0x04 ??, That makes the correct value for hash table. */
-    outl((u32)(0x00000004+i) << RFADDR_shift, ioaddr + rfcr);
-    outl(mc_filter[i], ioaddr + rfdr);
-  }
-
-  outl(RFEN | rx_mode, ioaddr + rfcr);
-
-  /* sis900 is capable of looping back packets at MAC level for
-   * debugging purpose */
-  if (net_dev->flags & IFF_LOOPBACK) {
-    u32 cr_saved;
-    /* We must disable Tx/Rx before setting loopback mode */
-    cr_saved = inl(ioaddr + cr);
-    outl(cr_saved | TxDIS | RxDIS, ioaddr + cr);
-    /* enable loopback */
-    outl(inl(ioaddr + txcfg) | TxMLB, ioaddr + txcfg);
-    outl(inl(ioaddr + rxcfg) | RxATX, ioaddr + rxcfg);
-    /* restore cr */
-    outl(cr_saved, ioaddr + cr);
-  }
-
-  return;
-}
-
 
 /**