From 945a787675cc5ba362f5d4ce135d2a2c20be5985 Mon Sep 17 00:00:00 2001 From: Peer Chen Date: Sat, 20 Aug 2005 01:10:06 -0400 Subject: [PATCH] [netdrvr uli526x] fix problems found in review - s/DEVICE/net_device/ - improve formatting - remove dead code - check return value, in several areas --- drivers/net/tulip/uli526x.c | 207 ++++++++++++++++-------------------- 1 file changed, 93 insertions(+), 114 deletions(-) diff --git a/drivers/net/tulip/uli526x.c b/drivers/net/tulip/uli526x.c index 27f99e087f7..5ae22b7bc5c 100644 --- a/drivers/net/tulip/uli526x.c +++ b/drivers/net/tulip/uli526x.c @@ -56,8 +56,7 @@ #define RX_ALLOC_SIZE 0x620 #define ULI526X_RESET 1 #define CR0_DEFAULT 0 -#define CR6_DEFAULT 0x00080000 /* HD */ -#define CR6_DEFAULT_A 0x22240000 +#define CR6_DEFAULT 0x22200000 #define CR7_DEFAULT 0x180c1 #define CR15_DEFAULT 0x06 /* TxJabber RxWatchdog */ #define TDES0_ERR_MASK 0x4302 /* TXJT, LC, EC, FUE */ @@ -103,10 +102,13 @@ #define SROM_V41_CODE 0x14 -#define SROM_CLK_WRITE(data, ioaddr) outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr);udelay(5);outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK,ioaddr);udelay(5);outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr);udelay(5); - -/* Sten Check */ -#define DEVICE net_device +#define SROM_CLK_WRITE(data, ioaddr) \ + outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \ + udelay(5); \ + outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK,ioaddr); \ + udelay(5); \ + outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr); \ + udelay(5); /* Structure/enum declaration ------------------------------- */ struct tx_desc { @@ -123,7 +125,7 @@ struct rx_desc { struct uli526x_board_info { u32 chip_id; /* Chip vendor/Device ID */ - struct DEVICE *next_dev; /* next device */ + struct net_device *next_dev; /* next device */ struct pci_dev *pdev; /* PCI device */ spinlock_t lock; @@ -212,22 +214,21 @@ static u32 uli526x_cr6_user_set; /* For module input parameter */ static int debug; static u32 cr6set; -static u32 m526x_id; static unsigned char mode = 8; /* function declaration ------------------------------------- */ -static int uli526x_open(struct DEVICE *); -static int uli526x_start_xmit(struct sk_buff *, struct DEVICE *); -static int uli526x_stop(struct DEVICE *); -static struct net_device_stats * uli526x_get_stats(struct DEVICE *); -static void uli526x_set_filter_mode(struct DEVICE *); +static int uli526x_open(struct net_device *); +static int uli526x_start_xmit(struct sk_buff *, struct net_device *); +static int uli526x_stop(struct net_device *); +static struct net_device_stats * uli526x_get_stats(struct net_device *); +static void uli526x_set_filter_mode(struct net_device *); static struct ethtool_ops netdev_ethtool_ops; -static u16 read_srom_word(long ,int); -static irqreturn_t uli526x_interrupt(int , void *, struct pt_regs *); +static u16 read_srom_word(long, int); +static irqreturn_t uli526x_interrupt(int, void *, struct pt_regs *); static void uli526x_descriptor_init(struct uli526x_board_info *, unsigned long); static void allocate_rx_buffer(struct uli526x_board_info *); static void update_cr6(u32, unsigned long); -static void send_filter_frame(struct DEVICE * ,int); +static void send_filter_frame(struct net_device *, int); static u16 phy_read(unsigned long, u8, u8, u32); static u16 phy_readby_cr10(unsigned long, u8, u8); static void phy_write(unsigned long, u8, u8, u16, u32); @@ -237,18 +238,18 @@ static u16 phy_read_1bit(unsigned long, u32); static u8 uli526x_sense_speed(struct uli526x_board_info *); static void uli526x_process_mode(struct uli526x_board_info *); static void uli526x_timer(unsigned long); -static void uli526x_rx_packet(struct DEVICE *, struct uli526x_board_info *); -static void uli526x_free_tx_pkt(struct DEVICE *, struct uli526x_board_info *); +static void uli526x_rx_packet(struct net_device *, struct uli526x_board_info *); +static void uli526x_free_tx_pkt(struct net_device *, struct uli526x_board_info *); static void uli526x_reuse_skb(struct uli526x_board_info *, struct sk_buff *); -static void uli526x_dynamic_reset(struct DEVICE *); +static void uli526x_dynamic_reset(struct net_device *); static void uli526x_free_rxbuffer(struct uli526x_board_info *); -static void uli526x_init(struct DEVICE *); +static void uli526x_init(struct net_device *); static void uli526x_set_phyxcer(struct uli526x_board_info *); -/* ULI526X network baord routine ---------------------------- */ +/* ULI526X network board routine ---------------------------- */ /* - * Search ULI526X board ,allocate space and register it + * Search ULI526X board, allocate space and register it */ static int __devinit uli526x_init_one (struct pci_dev *pdev, @@ -257,8 +258,7 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev, struct uli526x_board_info *db; /* board information structure */ struct net_device *dev; int i, err; - u32 configval; - + ULI526X_DBUG(0, "uli526x_init_one()", 0); if (!printed_version++) @@ -271,7 +271,7 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev, SET_MODULE_OWNER(dev); SET_NETDEV_DEV(dev, &pdev->dev); - if (pci_set_dma_mask(pdev, 0xffffffff)) { + if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { printk(KERN_WARNING DRV_NAME ": 32-bit PCI DMA not available.\n"); err = -ENODEV; goto err_out_free; @@ -300,23 +300,23 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev, goto err_out_disable; } - //add by clearzhang 2004/7/8 - pci_read_config_dword(pdev,0x0,&configval); - m526x_id = configval; - if(configval == 0x526310b9) - { - //printk("is m5263\n"); - pci_read_config_dword(pdev,0x0c,&configval); - configval = ((configval & 0xffff00ff) | 0x8000); - pci_write_config_dword(pdev,0x0c,configval); - } /* Init system & device */ db = netdev_priv(dev); /* Allocate Tx/Rx descriptor memory */ db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr); + if(db->desc_pool_ptr == NULL) + { + err = -ENOMEM; + goto err_out_nomem; + } db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, &db->buf_pool_dma_ptr); - + if(db->buf_pool_ptr == NULL) + { + err = -ENOMEM; + goto err_out_nomem; + } + db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr; db->first_tx_desc_dma = db->desc_pool_dma_ptr; db->buf_pool_start = db->buf_pool_ptr; @@ -347,7 +347,7 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev, ((u16 *) db->srom)[i] = cpu_to_le16(read_srom_word(db->ioaddr, i)); /* Set Node address */ - if(((u16 *) db->srom)[0] == 0xffff) /* SROM absent, so read MAC address from ID Table */ + if(((u16 *) db->srom)[0] == 0xffff || ((u16 *) db->srom)[0] == 0) /* SROM absent, so read MAC address from ID Table */ { outl(0x10000, db->ioaddr + DCR0); //Diagnosis mode outl(0x1c0, db->ioaddr + DCR13); //Reset dianostic pointer port @@ -385,6 +385,14 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev, err_out_res: pci_release_regions(pdev); +err_out_nomem: + if(db->desc_pool_ptr) + pci_free_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, + db->desc_pool_ptr, db->desc_pool_dma_ptr); + + if(db->buf_pool_ptr != NULL) + pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, + db->buf_pool_ptr, db->buf_pool_dma_ptr); err_out_disable: pci_disable_device(pdev); err_out_free: @@ -402,32 +410,30 @@ static void __devexit uli526x_remove_one (struct pci_dev *pdev) ULI526X_DBUG(0, "uli526x_remove_one()", 0); - if (dev) { - pci_free_consistent(db->pdev, sizeof(struct tx_desc) * - DESC_ALL_CNT + 0x20, db->desc_pool_ptr, - db->desc_pool_dma_ptr); - pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, - db->buf_pool_ptr, db->buf_pool_dma_ptr); - unregister_netdev(dev); - pci_release_regions(pdev); - free_netdev(dev); /* free board information */ - pci_set_drvdata(pdev, NULL); - } - + pci_free_consistent(db->pdev, sizeof(struct tx_desc) * + DESC_ALL_CNT + 0x20, db->desc_pool_ptr, + db->desc_pool_dma_ptr); + pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, + db->buf_pool_ptr, db->buf_pool_dma_ptr); + unregister_netdev(dev); + pci_release_regions(pdev); + free_netdev(dev); /* free board information */ + pci_set_drvdata(pdev, NULL); + pci_disable_device(pdev); ULI526X_DBUG(0, "uli526x_remove_one() exit", 0); } /* * Open the interface. - * The interface is opened whenever "ifconfig" actives it. + * The interface is opened whenever "ifconfig" activates it. */ -static int uli526x_open(struct DEVICE *dev) +static int uli526x_open(struct net_device *dev) { int ret; struct uli526x_board_info *db = netdev_priv(dev); - + ULI526X_DBUG(0, "uli526x_open", 0); ret = request_irq(dev->irq, &uli526x_interrupt, SA_SHIRQ, dev->name, dev); @@ -436,11 +442,6 @@ static int uli526x_open(struct DEVICE *dev) /* system variable init */ db->cr6_data = CR6_DEFAULT | uli526x_cr6_user_set; - if(m526x_id == 0x526310b9) - { - //printk("is 5263\n"); - db->cr6_data = CR6_DEFAULT_A | uli526x_cr6_user_set; - } db->tx_packet_cnt = 0; db->rx_avail_cnt = 0; db->link_failed = 1; @@ -454,7 +455,7 @@ static int uli526x_open(struct DEVICE *dev) db->cr6_data |= ULI526X_TXTH_256; db->cr0_data = CR0_DEFAULT; - /* Initilize ULI526X board */ + /* Initialize ULI526X board */ uli526x_init(dev); /* Active System Interface */ @@ -471,14 +472,14 @@ static int uli526x_open(struct DEVICE *dev) } -/* Initilize ULI526X board +/* Initialize ULI526X board * Reset ULI526X board - * Initilize TX/Rx descriptor chain structure + * Initialize TX/Rx descriptor chain structure * Send the set-up frame * Enable Tx/Rx machine */ -static void uli526x_init(struct DEVICE *dev) +static void uli526x_init(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); unsigned long ioaddr = db->ioaddr; @@ -510,11 +511,6 @@ static void uli526x_init(struct DEVICE *dev) /* Parser SROM and media mode */ db->media_mode = uli526x_media_mode; - //add by clearzhang 2004/7/8 - /* RESET Phyxcer Chip by GPR port bit 7 */ - //outl(0x180, ioaddr + DCR12); /* Let bit 7 output port */ - //outl(0x0, ioaddr + DCR12); /* Clear RESET signal */ - /* Phyxcer capability setting */ phy_reg_reset = phy_read(db->ioaddr, db->phy_addr, 0, db->chip_id); phy_reg_reset = (phy_reg_reset | 0x8000); @@ -528,7 +524,7 @@ static void uli526x_init(struct DEVICE *dev) if ( !(db->media_mode & ULI526X_AUTO) ) db->op_mode = db->media_mode; /* Force Mode */ - /* Initiliaze Transmit/Receive decriptor and CR3/4 */ + /* Initialize Transmit/Receive decriptor and CR3/4 */ uli526x_descriptor_init(db, ioaddr); /* Init CR6 to program M526X operation */ @@ -555,7 +551,7 @@ static void uli526x_init(struct DEVICE *dev) * Send a packet to media from the upper layer. */ -static int uli526x_start_xmit(struct sk_buff *skb, struct DEVICE *dev) +static int uli526x_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); struct tx_desc *txptr; @@ -621,7 +617,7 @@ static int uli526x_start_xmit(struct sk_buff *skb, struct DEVICE *dev) * The interface is stopped when it is brought. */ -static int uli526x_stop(struct DEVICE *dev) +static int uli526x_stop(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); unsigned long ioaddr = dev->base_addr; @@ -665,19 +661,16 @@ static int uli526x_stop(struct DEVICE *dev) static irqreturn_t uli526x_interrupt(int irq, void *dev_id, struct pt_regs *regs) { - struct DEVICE *dev = dev_id; + struct net_device *dev = dev_id; struct uli526x_board_info *db = netdev_priv(dev); unsigned long ioaddr = dev->base_addr; unsigned long flags; - //ULI526X_DBUG(0, "uli526x_interrupt()", 0); - if (!dev) { ULI526X_DBUG(1, "uli526x_interrupt() without DEVICE arg", 0); return IRQ_NONE; } - //outl(0, ioaddr + DCR7); spin_lock_irqsave(&db->lock, flags); outl(0, ioaddr + DCR7); @@ -690,9 +683,6 @@ static irqreturn_t uli526x_interrupt(int irq, void *dev_id, struct pt_regs *regs return IRQ_HANDLED; } - /* Disable all interrupt in CR7 to solve the interrupt edge problem */ - //outl(0, ioaddr + DCR7); - /* Check system status */ if (db->cr5_data & 0x2000) { /* system bus error happen */ @@ -727,10 +717,9 @@ static irqreturn_t uli526x_interrupt(int irq, void *dev_id, struct pt_regs *regs * Free TX resource after TX complete */ -static void uli526x_free_tx_pkt(struct DEVICE *dev, struct uli526x_board_info * db) +static void uli526x_free_tx_pkt(struct net_device *dev, struct uli526x_board_info * db) { struct tx_desc *txptr; -// unsigned long ioaddr = dev->base_addr; u32 tdes0; txptr = db->tx_remove_ptr; @@ -787,7 +776,7 @@ static void uli526x_free_tx_pkt(struct DEVICE *dev, struct uli526x_board_info * * Receive the come packet and pass to upper layer */ -static void uli526x_rx_packet(struct DEVICE *dev, struct uli526x_board_info * db) +static void uli526x_rx_packet(struct net_device *dev, struct uli526x_board_info * db) { struct rx_desc *rxptr; struct sk_buff *skb; @@ -871,7 +860,7 @@ static void uli526x_rx_packet(struct DEVICE *dev, struct uli526x_board_info * db * Get statistics from driver. */ -static struct net_device_stats * uli526x_get_stats(struct DEVICE *dev) +static struct net_device_stats * uli526x_get_stats(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); @@ -884,7 +873,7 @@ static struct net_device_stats * uli526x_get_stats(struct DEVICE *dev) * Set ULI526X multicast address */ -static void uli526x_set_filter_mode(struct DEVICE * dev) +static void uli526x_set_filter_mode(struct net_device * dev) { struct uli526x_board_info *db = dev->priv; unsigned long flags; @@ -916,34 +905,26 @@ static void uli526x_set_filter_mode(struct DEVICE * dev) static void ULi_ethtool_gset(struct uli526x_board_info *db, struct ethtool_cmd *ecmd) { - //struct e1000_hw *hw = &adapter->hw; - - { - - ecmd->supported = (SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | - SUPPORTED_100baseT_Full | - SUPPORTED_Autoneg | - SUPPORTED_MII); + ecmd->supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_Autoneg | + SUPPORTED_MII); - ecmd->advertising = (ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_100baseT_Half | - ADVERTISED_100baseT_Full | - ADVERTISED_Autoneg | - ADVERTISED_MII); + ecmd->advertising = (ADVERTISED_10baseT_Half | + ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | + ADVERTISED_100baseT_Full | + ADVERTISED_Autoneg | + ADVERTISED_MII); - ecmd->port = PORT_MII; - ecmd->phy_address = db->phy_addr; + ecmd->port = PORT_MII; + ecmd->phy_address = db->phy_addr; - ecmd->transceiver = XCVR_EXTERNAL; + ecmd->transceiver = XCVR_EXTERNAL; - - } - - ecmd->speed = 10; ecmd->duplex = DUPLEX_HALF; @@ -965,8 +946,6 @@ ULi_ethtool_gset(struct uli526x_board_info *db, struct ethtool_cmd *ecmd) { ecmd->autoneg = AUTONEG_ENABLE; } - - } static void netdev_get_drvinfo(struct net_device *dev, @@ -1022,7 +1001,7 @@ static void uli526x_timer(unsigned long data) { u32 tmp_cr8; unsigned char tmp_cr12=0; - struct DEVICE *dev = (struct DEVICE *) data; + struct net_device *dev = (struct net_device *) data; struct uli526x_board_info *db = netdev_priv(dev); unsigned long flags; u8 TmpSpeed=10; @@ -1135,10 +1114,10 @@ static void uli526x_timer(unsigned long data) * Stop ULI526X board * Free Tx/Rx allocated memory * Reset ULI526X board - * Re-initilize ULI526X board + * Re-initialize ULI526X board */ -static void uli526x_dynamic_reset(struct DEVICE *dev) +static void uli526x_dynamic_reset(struct net_device *dev) { struct uli526x_board_info *db = netdev_priv(dev); @@ -1163,7 +1142,7 @@ static void uli526x_dynamic_reset(struct DEVICE *dev) db->init=1; db->wait_reset = 0; - /* Re-initilize ULI526X board */ + /* Re-initialize ULI526X board */ uli526x_init(dev); /* Restart upper layer interface */ @@ -1273,7 +1252,7 @@ static void uli526x_descriptor_init(struct uli526x_board_info *db, unsigned long /* * Update CR6 value - * Firstly stop ULI526X , then written value and start + * Firstly stop ULI526X, then written value and start */ static void update_cr6(u32 cr6_data, unsigned long ioaddr) @@ -1286,10 +1265,10 @@ static void update_cr6(u32 cr6_data, unsigned long ioaddr) /* * Send a setup frame for M5261/M5263 - * This setup frame initilize ULI526X address filter mode + * This setup frame initialize ULI526X address filter mode */ -static void send_filter_frame(struct DEVICE *dev, int mc_cnt) +static void send_filter_frame(struct net_device *dev, int mc_cnt) { struct uli526x_board_info *db = netdev_priv(dev); struct dev_mc_list *mcptr; @@ -1718,7 +1697,7 @@ MODULE_PARM_DESC(mode, "ULi M5261/M5263: Bit 0: 10/100Mbps, bit 2: duplex, bit 8 /* Description: * when user used insmod to add module, system invoked init_module() - * to initilize and register. + * to register the services. */ static int __init uli526x_init_module(void) -- 2.20.1