drivers/video/msm: update to new kernel
[safe/jmp/linux-2.6] / drivers / net / hamachi.c
index 015ed3a..f7519a5 100644 (file)
@@ -145,6 +145,7 @@ static int tx_params[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
 /* Time in jiffies before concluding the transmitter is hung. */
 #define TX_TIMEOUT  (5*HZ)
 
+#include <linux/capability.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
@@ -171,10 +172,10 @@ static int tx_params[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
 #include <asm/unaligned.h>
 #include <asm/cache.h>
 
-static char version[] __devinitdata =
+static const char version[] __devinitconst =
 KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "  Written by Donald Becker\n"
-KERN_INFO "   Some modifications by Eric kasten <kasten@nscl.msu.edu>\n"
-KERN_INFO "   Further modifications by Keith Underwood <keithu@parl.clemson.edu>\n";
+"   Some modifications by Eric kasten <kasten@nscl.msu.edu>\n"
+"   Further modifications by Keith Underwood <keithu@parl.clemson.edu>\n";
 
 
 /* IP_MF appears to be only defined in <netinet/ip.h>, however,
@@ -204,8 +205,10 @@ KERN_INFO "   Further modifications by Keith Underwood <keithu@parl.clemson.edu>
 /* Condensed bus+endian portability operations. */
 #if ADDRLEN == 64
 #define cpu_to_leXX(addr)      cpu_to_le64(addr)
+#define leXX_to_cpu(addr)      le64_to_cpu(addr)
 #else
 #define cpu_to_leXX(addr)      cpu_to_le32(addr)
+#define leXX_to_cpu(addr)      le32_to_cpu(addr)
 #endif
 
 
@@ -465,12 +468,12 @@ enum intr_status_bits {
 
 /* The Hamachi Rx and Tx buffer descriptors. */
 struct hamachi_desc {
-       u32 status_n_length;
+       __le32 status_n_length;
 #if ADDRLEN == 64
        u32 pad;
-       u64 addr;
+       __le64 addr;
 #else
-       u32 addr;
+       __le32 addr;
 #endif
 };
 
@@ -555,7 +558,8 @@ static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 static void hamachi_timer(unsigned long data);
 static void hamachi_tx_timeout(struct net_device *dev);
 static void hamachi_init_ring(struct net_device *dev);
-static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t hamachi_start_xmit(struct sk_buff *skb,
+                                     struct net_device *dev);
 static irqreturn_t hamachi_interrupt(int irq, void *dev_instance);
 static int hamachi_rx(struct net_device *dev);
 static inline int hamachi_tx(struct net_device *dev);
@@ -566,6 +570,20 @@ static void set_rx_mode(struct net_device *dev);
 static const struct ethtool_ops ethtool_ops;
 static const struct ethtool_ops ethtool_ops_no_mii;
 
+static const struct net_device_ops hamachi_netdev_ops = {
+       .ndo_open               = hamachi_open,
+       .ndo_stop               = hamachi_close,
+       .ndo_start_xmit         = hamachi_start_xmit,
+       .ndo_get_stats          = hamachi_get_stats,
+       .ndo_set_multicast_list = set_rx_mode,
+       .ndo_change_mtu         = eth_change_mtu,
+       .ndo_validate_addr      = eth_validate_addr,
+       .ndo_set_mac_address    = eth_mac_addr,
+       .ndo_tx_timeout         = hamachi_tx_timeout,
+       .ndo_do_ioctl           = netdev_ioctl,
+};
+
+
 static int __devinit hamachi_init_one (struct pci_dev *pdev,
                                    const struct pci_device_id *ent)
 {
@@ -580,7 +598,6 @@ static int __devinit hamachi_init_one (struct pci_dev *pdev,
        void *ring_space;
        dma_addr_t ring_dma;
        int ret = -ENOMEM;
-       DECLARE_MAC_BUF(mac);
 
 /* when built into the kernel, we only print version if device is found */
 #ifndef MODULE
@@ -721,17 +738,11 @@ static int __devinit hamachi_init_one (struct pci_dev *pdev,
 
 
        /* The Hamachi-specific entries in the device structure. */
-       dev->open = &hamachi_open;
-       dev->hard_start_xmit = &hamachi_start_xmit;
-       dev->stop = &hamachi_close;
-       dev->get_stats = &hamachi_get_stats;
-       dev->set_multicast_list = &set_rx_mode;
-       dev->do_ioctl = &netdev_ioctl;
+       dev->netdev_ops = &hamachi_netdev_ops;
        if (chip_tbl[hmp->chip_id].flags & CanHaveMII)
                SET_ETHTOOL_OPS(dev, &ethtool_ops);
        else
                SET_ETHTOOL_OPS(dev, &ethtool_ops_no_mii);
-       dev->tx_timeout = &hamachi_tx_timeout;
        dev->watchdog_timeo = TX_TIMEOUT;
        if (mtu)
                dev->mtu = mtu;
@@ -742,9 +753,9 @@ static int __devinit hamachi_init_one (struct pci_dev *pdev,
                goto err_out_unmap_rx;
        }
 
-       printk(KERN_INFO "%s: %s type %x at %p, %s, IRQ %d.\n",
+       printk(KERN_INFO "%s: %s type %x at %p, %pM, IRQ %d.\n",
                   dev->name, chip_tbl[chip_id].name, readl(ioaddr + ChipRev),
-                  ioaddr, print_mac(mac, dev->dev_addr), irq);
+                  ioaddr, dev->dev_addr, irq);
        i = readb(ioaddr + PCIClkMeas);
        printk(KERN_INFO "%s:  %d-bit %d Mhz PCI bus (%d), Virtual Jumpers "
                   "%2.2x, LPA %4.4x.\n",
@@ -874,13 +885,13 @@ static int hamachi_open(struct net_device *dev)
 
 #if ADDRLEN == 64
        /* writellll anyone ? */
-       writel(cpu_to_le64(hmp->rx_ring_dma), ioaddr + RxPtr);
-       writel(cpu_to_le64(hmp->rx_ring_dma) >> 32, ioaddr + RxPtr + 4);
-       writel(cpu_to_le64(hmp->tx_ring_dma), ioaddr + TxPtr);
-       writel(cpu_to_le64(hmp->tx_ring_dma) >> 32, ioaddr + TxPtr + 4);
+       writel(hmp->rx_ring_dma, ioaddr + RxPtr);
+       writel(hmp->rx_ring_dma >> 32, ioaddr + RxPtr + 4);
+       writel(hmp->tx_ring_dma, ioaddr + TxPtr);
+       writel(hmp->tx_ring_dma >> 32, ioaddr + TxPtr + 4);
 #else
-       writel(cpu_to_le32(hmp->rx_ring_dma), ioaddr + RxPtr);
-       writel(cpu_to_le32(hmp->tx_ring_dma), ioaddr + TxPtr);
+       writel(hmp->rx_ring_dma, ioaddr + RxPtr);
+       writel(hmp->tx_ring_dma, ioaddr + TxPtr);
 #endif
 
        /* TODO:  It would make sense to organize this as words since the card
@@ -1017,10 +1028,10 @@ static inline int hamachi_tx(struct net_device *dev)
                        break;
                /* Free the original skb. */
                skb = hmp->tx_skbuff[entry];
-               if (skb != 0) {
+               if (skb) {
                        pci_unmap_single(hmp->pci_dev,
-                               hmp->tx_ring[entry].addr, skb->len,
-                               PCI_DMA_TODEVICE);
+                               leXX_to_cpu(hmp->tx_ring[entry].addr),
+                               skb->len, PCI_DMA_TODEVICE);
                        dev_kfree_skb(skb);
                        hmp->tx_skbuff[entry] = NULL;
                }
@@ -1069,14 +1080,16 @@ static void hamachi_tx_timeout(struct net_device *dev)
                   " resetting...\n", dev->name, (int)readw(ioaddr + TxStatus));
 
        {
-               int i;
                printk(KERN_DEBUG "  Rx ring %p: ", hmp->rx_ring);
                for (i = 0; i < RX_RING_SIZE; i++)
-                       printk(" %8.8x", (unsigned int)hmp->rx_ring[i].status_n_length);
-               printk("\n"KERN_DEBUG"  Tx ring %p: ", hmp->tx_ring);
+                       printk(KERN_CONT " %8.8x",
+                              le32_to_cpu(hmp->rx_ring[i].status_n_length));
+               printk(KERN_CONT "\n");
+               printk(KERN_DEBUG"  Tx ring %p: ", hmp->tx_ring);
                for (i = 0; i < TX_RING_SIZE; i++)
-                       printk(" %4.4x", hmp->tx_ring[i].status_n_length);
-               printk("\n");
+                       printk(KERN_CONT " %4.4x",
+                              le32_to_cpu(hmp->tx_ring[i].status_n_length));
+               printk(KERN_CONT "\n");
        }
 
        /* Reinit the hardware and make sure the Rx and Tx processes
@@ -1100,14 +1113,15 @@ static void hamachi_tx_timeout(struct net_device *dev)
                struct sk_buff *skb;
 
                if (i >= TX_RING_SIZE - 1)
-                       hmp->tx_ring[i].status_n_length = cpu_to_le32(
-                               DescEndRing |
-                               (hmp->tx_ring[i].status_n_length & 0x0000FFFF));
+                       hmp->tx_ring[i].status_n_length =
+                               cpu_to_le32(DescEndRing) |
+                               (hmp->tx_ring[i].status_n_length &
+                                cpu_to_le32(0x0000ffff));
                else
-                       hmp->tx_ring[i].status_n_length &= 0x0000ffff;
+                       hmp->tx_ring[i].status_n_length &= cpu_to_le32(0x0000ffff);
                skb = hmp->tx_skbuff[i];
                if (skb){
-                       pci_unmap_single(hmp->pci_dev, hmp->tx_ring[i].addr,
+                       pci_unmap_single(hmp->pci_dev, leXX_to_cpu(hmp->tx_ring[i].addr),
                                skb->len, PCI_DMA_TODEVICE);
                        dev_kfree_skb(skb);
                        hmp->tx_skbuff[i] = NULL;
@@ -1129,7 +1143,8 @@ static void hamachi_tx_timeout(struct net_device *dev)
                struct sk_buff *skb = hmp->rx_skbuff[i];
 
                if (skb){
-                       pci_unmap_single(hmp->pci_dev, hmp->rx_ring[i].addr,
+                       pci_unmap_single(hmp->pci_dev,
+                               leXX_to_cpu(hmp->rx_ring[i].addr),
                                hmp->rx_buf_sz, PCI_DMA_FROMDEVICE);
                        dev_kfree_skb(skb);
                        hmp->rx_skbuff[i] = NULL;
@@ -1137,11 +1152,11 @@ static void hamachi_tx_timeout(struct net_device *dev)
        }
        /* Fill in the Rx buffers.  Handle allocation failure gracefully. */
        for (i = 0; i < RX_RING_SIZE; i++) {
-               struct sk_buff *skb = dev_alloc_skb(hmp->rx_buf_sz);
+               struct sk_buff *skb = netdev_alloc_skb(dev, hmp->rx_buf_sz);
                hmp->rx_skbuff[i] = skb;
                if (skb == NULL)
                        break;
-               skb->dev = dev;         /* Mark as being used by this device. */
+
                skb_reserve(skb, 2); /* 16 byte align the IP header. */
                 hmp->rx_ring[i].addr = cpu_to_leXX(pci_map_single(hmp->pci_dev,
                        skb->data, hmp->rx_buf_sz, PCI_DMA_FROMDEVICE));
@@ -1153,7 +1168,7 @@ static void hamachi_tx_timeout(struct net_device *dev)
        hmp->rx_ring[RX_RING_SIZE-1].status_n_length |= cpu_to_le32(DescEndRing);
 
        /* Trigger an immediate transmit demand. */
-       dev->trans_start = jiffies;
+       dev->trans_start = jiffies; /* prevent tx timeout */
        hmp->stats.tx_errors++;
 
        /* Restart the chip's Tx/Rx processes . */
@@ -1175,14 +1190,6 @@ static void hamachi_init_ring(struct net_device *dev)
        hmp->cur_rx = hmp->cur_tx = 0;
        hmp->dirty_rx = hmp->dirty_tx = 0;
 
-#if 0
-       /* This is wrong.  I'm not sure what the original plan was, but this
-        * is wrong.  An MTU of 1 gets you a buffer of 1536, while an MTU
-        * of 1501 gets a buffer of 1533? -KDU
-        */
-       hmp->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
-#endif
-       /* My attempt at a reasonable correction */
        /* +26 gets the maximum ethernet encapsulation, +7 & ~7 because the
         * card needs room to do 8 byte alignment, +2 so we can reserve
         * the first 2 bytes, and +16 gets room for the status word from the
@@ -1242,7 +1249,7 @@ do { \
     csum_add(sum, (ih)->saddr & 0xffff); \
     csum_add(sum, (ih)->daddr >> 16); \
     csum_add(sum, (ih)->daddr & 0xffff); \
-    csum_add(sum, __constant_htons(IPPROTO_UDP)); \
+    csum_add(sum, cpu_to_be16(IPPROTO_UDP)); \
     csum_add(sum, (uh)->len); \
 } while (0)
 
@@ -1253,12 +1260,13 @@ do { \
     csum_add(sum, (ih)->saddr & 0xffff); \
     csum_add(sum, (ih)->daddr >> 16); \
     csum_add(sum, (ih)->daddr & 0xffff); \
-    csum_add(sum, __constant_htons(IPPROTO_TCP)); \
+    csum_add(sum, cpu_to_be16(IPPROTO_TCP)); \
     csum_add(sum, htons(len)); \
 } while (0)
 #endif
 
-static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t hamachi_start_xmit(struct sk_buff *skb,
+                                     struct net_device *dev)
 {
        struct hamachi_private *hmp = netdev_priv(dev);
        unsigned entry;
@@ -1278,7 +1286,7 @@ static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev)
                status=readw(hmp->base + TxStatus);
                if( !(status & 0x0001) || (status & 0x0002))
                        writew(0x0001, hmp->base + TxCmd);
-               return 1;
+               return NETDEV_TX_BUSY;
        }
 
        /* Caution: the write order is important here, set the field
@@ -1294,7 +1302,7 @@ static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev)
            /* tack on checksum tag */
            u32 tagval = 0;
            struct ethhdr *eh = (struct ethhdr *)skb->data;
-           if (eh->h_proto == __constant_htons(ETH_P_IP)) {
+           if (eh->h_proto == cpu_to_be16(ETH_P_IP)) {
                struct iphdr *ih = (struct iphdr *)((char *)eh + ETH_HLEN);
                if (ih->protocol == IPPROTO_UDP) {
                    struct udphdr *uh
@@ -1362,13 +1370,12 @@ static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev)
                hmp->tx_full = 1;
                netif_stop_queue(dev);
        }
-       dev->trans_start = jiffies;
 
        if (hamachi_debug > 4) {
                printk(KERN_DEBUG "%s: Hamachi transmit frame #%d queued in slot %d.\n",
                           dev->name, hmp->cur_tx, entry);
        }
-       return 0;
+       return NETDEV_TX_OK;
 }
 
 /* The interrupt handler does all of the Rx thread work and cleans up
@@ -1421,7 +1428,7 @@ static irqreturn_t hamachi_interrupt(int irq, void *dev_instance)
                                        /* Free the original skb. */
                                        if (skb){
                                                pci_unmap_single(hmp->pci_dev,
-                                                       hmp->tx_ring[entry].addr,
+                                                       leXX_to_cpu(hmp->tx_ring[entry].addr),
                                                        skb->len,
                                                        PCI_DMA_TODEVICE);
                                                dev_kfree_skb_irq(skb);
@@ -1501,11 +1508,11 @@ static int hamachi_rx(struct net_device *dev)
                if (desc_status & DescOwn)
                        break;
                pci_dma_sync_single_for_cpu(hmp->pci_dev,
-                                           desc->addr,
+                                           leXX_to_cpu(desc->addr),
                                            hmp->rx_buf_sz,
                                            PCI_DMA_FROMDEVICE);
                buf_addr = (u8 *) hmp->rx_skbuff[entry]->data;
-               frame_status = le32_to_cpu(get_unaligned((s32*)&(buf_addr[data_size - 12])));
+               frame_status = get_unaligned_le32(&(buf_addr[data_size - 12]));
                if (hamachi_debug > 4)
                        printk(KERN_DEBUG "  hamachi_rx() status was %8.8x.\n",
                                frame_status);
@@ -1519,9 +1526,9 @@ static int hamachi_rx(struct net_device *dev)
                                   dev->name, desc, &hmp->rx_ring[hmp->cur_rx % RX_RING_SIZE]);
                        printk(KERN_WARNING "%s: Oversized Ethernet frame -- next status %x/%x last status %x.\n",
                                   dev->name,
-                                  hmp->rx_ring[(hmp->cur_rx+1) % RX_RING_SIZE].status_n_length & 0xffff0000,
-                                  hmp->rx_ring[(hmp->cur_rx+1) % RX_RING_SIZE].status_n_length & 0x0000ffff,
-                                  hmp->rx_ring[(hmp->cur_rx-1) % RX_RING_SIZE].status_n_length);
+                                  le32_to_cpu(hmp->rx_ring[(hmp->cur_rx+1) % RX_RING_SIZE].status_n_length) & 0xffff0000,
+                                  le32_to_cpu(hmp->rx_ring[(hmp->cur_rx+1) % RX_RING_SIZE].status_n_length) & 0x0000ffff,
+                                  le32_to_cpu(hmp->rx_ring[(hmp->cur_rx-1) % RX_RING_SIZE].status_n_length));
                        hmp->stats.rx_length_errors++;
                } /* else  Omit for prototype errata??? */
                if (frame_status & 0x00380000) {
@@ -1567,7 +1574,7 @@ static int hamachi_rx(struct net_device *dev)
 #endif
                                skb_reserve(skb, 2);    /* 16 byte align the IP header */
                                pci_dma_sync_single_for_cpu(hmp->pci_dev,
-                                                           hmp->rx_ring[entry].addr,
+                                                           leXX_to_cpu(hmp->rx_ring[entry].addr),
                                                            hmp->rx_buf_sz,
                                                            PCI_DMA_FROMDEVICE);
                                /* Call copy + cksum if available. */
@@ -1580,12 +1587,12 @@ static int hamachi_rx(struct net_device *dev)
                                        + entry*sizeof(*desc), pkt_len);
 #endif
                                pci_dma_sync_single_for_device(hmp->pci_dev,
-                                                              hmp->rx_ring[entry].addr,
+                                                              leXX_to_cpu(hmp->rx_ring[entry].addr),
                                                               hmp->rx_buf_sz,
                                                               PCI_DMA_FROMDEVICE);
                        } else {
                                pci_unmap_single(hmp->pci_dev,
-                                                hmp->rx_ring[entry].addr,
+                                                leXX_to_cpu(hmp->rx_ring[entry].addr),
                                                 hmp->rx_buf_sz, PCI_DMA_FROMDEVICE);
                                skb_put(skb = hmp->rx_skbuff[entry], pkt_len);
                                hmp->rx_skbuff[entry] = NULL;
@@ -1603,7 +1610,7 @@ static int hamachi_rx(struct net_device *dev)
                                 */
                                if (ntohs(ih->tot_len) >= 46){
                                        /* don't worry about frags */
-                                       if (!(ih->frag_off & __constant_htons(IP_MF|IP_OFFSET))) {
+                                       if (!(ih->frag_off & cpu_to_be16(IP_MF|IP_OFFSET))) {
                                                u32 inv = *(u32 *) &buf_addr[data_size - 16];
                                                u32 *p = (u32 *) &buf_addr[data_size - 20];
                                                register u32 crc, p_r, p_r1;
@@ -1651,7 +1658,6 @@ static int hamachi_rx(struct net_device *dev)
 #endif  /* RX_CHECKSUM */
 
                        netif_rx(skb);
-                       dev->last_rx = jiffies;
                        hmp->stats.rx_packets++;
                }
                entry = (++hmp->cur_rx) % RX_RING_SIZE;
@@ -1753,13 +1759,13 @@ static int hamachi_close(struct net_device *dev)
 
 #ifdef __i386__
        if (hamachi_debug > 2) {
-               printk("\n"KERN_DEBUG"  Tx ring at %8.8x:\n",
+               printk(KERN_DEBUG "  Tx ring at %8.8x:\n",
                           (int)hmp->tx_ring_dma);
                for (i = 0; i < TX_RING_SIZE; i++)
-                       printk(" %c #%d desc. %8.8x %8.8x.\n",
+                       printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x.\n",
                                   readl(ioaddr + TxCurPtr) == (long)&hmp->tx_ring[i] ? '>' : ' ',
                                   i, hmp->tx_ring[i].status_n_length, hmp->tx_ring[i].addr);
-               printk("\n"KERN_DEBUG "  Rx ring %8.8x:\n",
+               printk(KERN_DEBUG "  Rx ring %8.8x:\n",
                           (int)hmp->rx_ring_dma);
                for (i = 0; i < RX_RING_SIZE; i++) {
                        printk(KERN_DEBUG " %c #%d desc. %4.4x %8.8x\n",
@@ -1770,7 +1776,7 @@ static int hamachi_close(struct net_device *dev)
                                        u16 *addr = (u16 *)
                                                hmp->rx_skbuff[i]->data;
                                        int j;
-
+                                       printk(KERN_DEBUG "Addr: ");
                                        for (j = 0; j < 0x50; j++)
                                                printk(" %4.4x", addr[j]);
                                        printk("\n");
@@ -1788,21 +1794,21 @@ static int hamachi_close(struct net_device *dev)
        for (i = 0; i < RX_RING_SIZE; i++) {
                skb = hmp->rx_skbuff[i];
                hmp->rx_ring[i].status_n_length = 0;
-               hmp->rx_ring[i].addr = 0xBADF00D0; /* An invalid address. */
                if (skb) {
                        pci_unmap_single(hmp->pci_dev,
-                               hmp->rx_ring[i].addr, hmp->rx_buf_sz,
-                               PCI_DMA_FROMDEVICE);
+                               leXX_to_cpu(hmp->rx_ring[i].addr),
+                               hmp->rx_buf_sz, PCI_DMA_FROMDEVICE);
                        dev_kfree_skb(skb);
                        hmp->rx_skbuff[i] = NULL;
                }
+               hmp->rx_ring[i].addr = cpu_to_leXX(0xBADF00D0); /* An invalid address. */
        }
        for (i = 0; i < TX_RING_SIZE; i++) {
                skb = hmp->tx_skbuff[i];
                if (skb) {
                        pci_unmap_single(hmp->pci_dev,
-                               hmp->tx_ring[i].addr, skb->len,
-                               PCI_DMA_TODEVICE);
+                               leXX_to_cpu(hmp->tx_ring[i].addr),
+                               skb->len, PCI_DMA_TODEVICE);
                        dev_kfree_skb(skb);
                        hmp->tx_skbuff[i] = NULL;
                }