diff options
| -rw-r--r-- | drivers/net/pcnet32.c | 153 |
1 files changed, 73 insertions, 80 deletions
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c index 9194abc11ee..63e03159daf 100644 --- a/drivers/net/pcnet32.c +++ b/drivers/net/pcnet32.c @@ -52,10 +52,10 @@ static const char *const version = #include <linux/spinlock.h> #include <linux/moduleparam.h> #include <linux/bitops.h> +#include <linux/io.h> +#include <linux/uaccess.h> #include <asm/dma.h> -#include <asm/io.h> -#include <asm/uaccess.h> #include <asm/irq.h> /* @@ -85,7 +85,7 @@ static int cards_found; static unsigned int pcnet32_portlist[] __initdata = { 0x300, 0x320, 0x340, 0x360, 0 }; -static int pcnet32_debug = 0; +static int pcnet32_debug; static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */ static int pcnet32vlb; /* check for VLB cards ? */ @@ -392,7 +392,7 @@ static struct pcnet32_access pcnet32_wio = { static u16 pcnet32_dwio_read_csr(unsigned long addr, int index) { outl(index, addr + PCNET32_DWIO_RAP); - return (inl(addr + PCNET32_DWIO_RDP) & 0xffff); + return inl(addr + PCNET32_DWIO_RDP) & 0xffff; } static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val) @@ -404,7 +404,7 @@ static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val) static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index) { outl(index, addr + PCNET32_DWIO_RAP); - return (inl(addr + PCNET32_DWIO_BDP) & 0xffff); + return inl(addr + PCNET32_DWIO_BDP) & 0xffff; } static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val) @@ -415,7 +415,7 @@ static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val) static u16 pcnet32_dwio_read_rap(unsigned long addr) { - return (inl(addr + PCNET32_DWIO_RAP) & 0xffff); + return inl(addr + PCNET32_DWIO_RAP) & 0xffff; } static void pcnet32_dwio_write_rap(unsigned long addr, u16 val) @@ -524,15 +524,14 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev, lp->tx_skbuff = new_skb_list; return; - free_new_lists: +free_new_lists: kfree(new_dma_addr_list); - free_new_tx_ring: +free_new_tx_ring: pci_free_consistent(lp->pci_dev, sizeof(struct pcnet32_tx_head) * (1 << size), new_tx_ring, new_ring_dma_addr); - return; } /* @@ -587,10 +586,11 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev, new_skb_list[new] = lp->rx_skbuff[new]; } /* now allocate any new buffers needed */ - for (; new < size; new++ ) { + for (; new < size; new++) { struct sk_buff *rx_skbuff; new_skb_list[new] = dev_alloc_skb(PKT_BUF_SKB); - if (!(rx_skbuff = new_skb_list[new])) { + rx_skbuff = new_skb_list[new]; + if (!rx_skbuff) { /* keep the original lists and buffers */ netif_err(lp, drv, dev, "%s dev_alloc_skb failed\n", __func__); @@ -630,8 +630,8 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev, lp->rx_skbuff = new_skb_list; return; - free_all_new: - for (; --new >= lp->rx_ring_size; ) { +free_all_new: + while (--new >= lp->rx_ring_size) { if (new_skb_list[new]) { pci_unmap_single(lp->pci_dev, new_dma_addr_list[new], PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); @@ -639,9 +639,9 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev, } } kfree(new_skb_list); - free_new_lists: +free_new_lists: kfree(new_dma_addr_list); - free_new_rx_ring: +free_new_rx_ring: pci_free_consistent(lp->pci_dev, sizeof(struct pcnet32_rx_head) * (1 << size), @@ -831,7 +831,7 @@ static int pcnet32_set_ringparam(struct net_device *dev, } static void pcnet32_get_strings(struct net_device *dev, u32 stringset, - u8 * data) + u8 *data) { memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test)); } @@ -908,39 +908,39 @@ static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) /* Initialize Transmit buffers. */ size = data_len + 15; for (x = 0; x < numbuffs; x++) { - if (!(skb = dev_alloc_skb(size))) { + skb = dev_alloc_skb(size); + if (!skb) { netif_printk(lp, hw, KERN_DEBUG, dev, "Cannot allocate skb at line: %d!\n", __LINE__); goto clean_up; - } else { - packet = skb->data; - skb_put(skb, size); /* create space for data */ - lp->tx_skbuff[x] = skb; - lp->tx_ring[x].length = cpu_to_le16(-skb->len); - lp->tx_ring[x].misc = 0; - - /* put DA and SA into the skb */ - for (i = 0; i < 6; i++) - *packet++ = dev->dev_addr[i]; - for (i = 0; i < 6; i++) - *packet++ = dev->dev_addr[i]; - /* type */ - *packet++ = 0x08; - *packet++ = 0x06; - /* packet number */ - *packet++ = x; - /* fill packet with data */ - for (i = 0; i < data_len; i++) - *packet++ = i; - - lp->tx_dma_addr[x] = - pci_map_single(lp->pci_dev, skb->data, skb->len, - PCI_DMA_TODEVICE); - lp->tx_ring[x].base = cpu_to_le32(lp->tx_dma_addr[x]); - wmb(); /* Make sure owner changes after all others are visible */ - lp->tx_ring[x].status = cpu_to_le16(status); } + packet = skb->data; + skb_put(skb, size); /* create space for data */ + lp->tx_skbuff[x] = skb; + lp->tx_ring[x].length = cpu_to_le16(-skb->len); + lp->tx_ring[x].misc = 0; + + /* put DA and SA into the skb */ + for (i = 0; i < 6; i++) + *packet++ = dev->dev_addr[i]; + for (i = 0; i < 6; i++) + *packet++ = dev->dev_addr[i]; + /* type */ + *packet++ = 0x08; + *packet++ = 0x06; + /* packet number */ + *packet++ = x; + /* fill packet with data */ + for (i = 0; i < data_len; i++) + *packet++ = i; + + lp->tx_dma_addr[x] = + pci_map_single(lp->pci_dev, skb->data, skb->len, + PCI_DMA_TODEVICE); + lp->tx_ring[x].base = cpu_to_le32(lp->tx_dma_addr[x]); + wmb(); /* Make sure owner changes after all others are visible */ + lp->tx_ring[x].status = cpu_to_le16(status); } x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */ @@ -978,9 +978,8 @@ static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) for (x = 0; x < numbuffs; x++) { netdev_printk(KERN_DEBUG, dev, "Packet %d: ", x); skb = lp->rx_skbuff[x]; - for (i = 0; i < size; i++) { + for (i = 0; i < size; i++) pr_cont(" %02x", *(skb->data + i)); - } pr_cont("\n"); } } @@ -1002,7 +1001,7 @@ static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) x++; } - clean_up: +clean_up: *data1 = rc; pcnet32_purge_tx_ring(dev); @@ -1021,7 +1020,7 @@ static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) } spin_unlock_irqrestore(&lp->lock, flags); - return (rc); + return rc; } /* end pcnet32_loopback_test */ static void pcnet32_led_blink_callback(struct net_device *dev) @@ -1033,9 +1032,8 @@ static void pcnet32_led_blink_callback(struct net_device *dev) int i; spin_lock_irqsave(&lp->lock, flags); - for (i = 4; i < 8; i++) { + for (i = 4; i < 8; i++) a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000); - } spin_unlock_irqrestore(&lp->lock, flags); mod_timer(&lp->blink_timer, PCNET32_BLINK_TIMEOUT); @@ -1057,9 +1055,8 @@ static int pcnet32_phys_id(struct net_device *dev, u32 data) /* Save the current value of the bcrs */ spin_lock_irqsave(&lp->lock, flags); - for (i = 4; i < 8; i++) { + for (i = 4; i < 8; i++) regs[i - 4] = a->read_bcr(ioaddr, i); - } spin_unlock_irqrestore(&lp->lock, flags); mod_timer(&lp->blink_timer, jiffies); @@ -1074,9 +1071,8 @@ static int pcnet32_phys_id(struct net_device *dev, u32 data) /* Restore the original value of the bcrs */ spin_lock_irqsave(&lp->lock, flags); - for (i = 4; i < 8; i++) { + for (i = 4; i < 8; i++) a->write_bcr(ioaddr, i, regs[i - 4]); - } spin_unlock_irqrestore(&lp->lock, flags); return 0; @@ -1173,7 +1169,8 @@ static void pcnet32_rx_entry(struct net_device *dev, if (pkt_len > rx_copybreak) { struct sk_buff *newskb; - if ((newskb = dev_alloc_skb(PKT_BUF_SKB))) { + newskb = dev_alloc_skb(PKT_BUF_SKB); + if (newskb) { skb_reserve(newskb, NET_IP_ALIGN); skb = lp->rx_skbuff[entry]; pci_unmap_single(lp->pci_dev, @@ -1191,9 +1188,8 @@ static void pcnet32_rx_entry(struct net_device *dev, rx_in_place = 1; } else skb = NULL; - } else { + } else skb = dev_alloc_skb(pkt_len + NET_IP_ALIGN); - } if (skb == NULL) { netif_err(lp, drv, dev, "Memory squeeze, dropping packet\n"); @@ -1380,7 +1376,7 @@ static int pcnet32_get_regs_len(struct net_device *dev) struct pcnet32_private *lp = netdev_priv(dev); int j = lp->phycount * PCNET32_REGS_PER_PHY; - return ((PCNET32_NUM_REGS + j) * sizeof(u16)); + return (PCNET32_NUM_REGS + j) * sizeof(u16); } static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, @@ -1404,21 +1400,20 @@ static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, *buff++ = inw(ioaddr + i); /* read control and status registers */ - for (i = 0; i < 90; i++) { + for (i = 0; i < 90; i++) *buff++ = a->read_csr(ioaddr, i); - } *buff++ = a->read_csr(ioaddr, 112); *buff++ = a->read_csr(ioaddr, 114); /* read bus configuration registers */ - for (i = 0; i < 30; i++) { + for (i = 0; i < 30; i++) *buff++ = a->read_bcr(ioaddr, i); - } + *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */ - for (i = 31; i < 36; i++) { + + for (i = 31; i < 36; i++) *buff++ = a->read_bcr(ioaddr, i); - } /* read mii phy registers */ if (lp->mii) { @@ -1511,17 +1506,16 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) pr_err("architecture does not support 32bit PCI busmaster DMA\n"); return -ENODEV; } - if (request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci") == - NULL) { + if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) { if (pcnet32_debug & NETIF_MSG_PROBE) pr_err("io address range already allocated\n"); return -EBUSY; } err = pcnet32_probe1(ioaddr, 1, pdev); - if (err < 0) { + if (err < 0) pci_disable_device(pdev); - } + return err; } @@ -1764,8 +1758,9 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) dev->base_addr = ioaddr; lp = netdev_priv(dev); /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */ - if ((lp->init_block = - pci_alloc_consistent(pdev, sizeof(*lp->init_block), &lp->init_dma_addr)) == NULL) { + lp->init_block = pci_alloc_consistent(pdev, sizeof(*lp->init_block), + &lp->init_dma_addr); + if (!lp->init_block) { if (pcnet32_debug & NETIF_MSG_PROBE) pr_err("Consistent memory allocation failed\n"); ret = -ENOMEM; @@ -1890,9 +1885,8 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) id1, id2, i); } lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); - if (lp->phycount > 1) { + if (lp->phycount > 1) lp->options |= PCNET32_PORT_MII; - } } init_timer(&lp->watchdog_timer); @@ -2236,7 +2230,7 @@ static int pcnet32_open(struct net_device *dev) return 0; /* Always succeed */ - err_free_ring: +err_free_ring: /* free any allocated skbuffs */ pcnet32_purge_rx_ring(dev); @@ -2246,7 +2240,7 @@ static int pcnet32_open(struct net_device *dev) */ lp->a.write_bcr(ioaddr, 20, 4); - err_free_irq: +err_free_irq: spin_unlock_irqrestore(&lp->lock, flags); free_irq(dev->irq, dev); return rc; @@ -2297,10 +2291,10 @@ static int pcnet32_init_ring(struct net_device *dev) for (i = 0; i < lp->rx_ring_size; i++) { struct sk_buff *rx_skbuff = lp->rx_skbuff[i]; if (rx_skbuff == NULL) { - if (! - (rx_skbuff = lp->rx_skbuff[i] = - dev_alloc_skb(PKT_BUF_SKB))) { - /* there is not much, we can do at this point */ + lp->rx_skbuff[i] = dev_alloc_skb(PKT_BUF_SKB); + rx_skbuff = lp->rx_skbuff[i]; + if (!rx_skbuff) { + /* there is not much we can do at this point */ netif_err(lp, drv, dev, "%s dev_alloc_skb failed\n", __func__); return -1; @@ -2482,9 +2476,8 @@ pcnet32_interrupt(int irq, void *dev_id) csr0 = lp->a.read_csr(ioaddr, CSR0); while ((csr0 & 0x8f00) && --boguscnt >= 0) { - if (csr0 == 0xffff) { + if (csr0 == 0xffff) break; /* PCMCIA remove happened */ - } /* Acknowledge all of the current interrupt sources ASAP. */ lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f); 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