From 67cd819da64ba7091e59bb3a0cfaafeba6e6c71d Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Sat, 30 Jan 2010 15:25:55 +0000 Subject: [PATCH] ramips_eth: coding style cleanup SVN-Revision: 19414 --- .../linux/ramips/files/drivers/net/ramips.c | 120 ++++++++++-------- 1 file changed, 66 insertions(+), 54 deletions(-) diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c index f9ce27241d..23a3fb6f03 100644 --- a/target/linux/ramips/files/drivers/net/ramips.c +++ b/target/linux/ramips/files/drivers/net/ramips.c @@ -83,12 +83,12 @@ ramips_alloc_dma(struct net_device *dev) /* setup tx ring */ priv->tx = dma_alloc_coherent(NULL, - NUM_TX_DESC * sizeof(struct ramips_tx_dma), &priv->phy_tx, GFP_ATOMIC); + NUM_TX_DESC * sizeof(struct ramips_tx_dma), + &priv->phy_tx, GFP_ATOMIC); if (!priv->tx) goto err_cleanup; - for(i = 0; i < NUM_TX_DESC; i++) - { + for (i = 0; i < NUM_TX_DESC; i++) { memset(&priv->tx[i], 0, sizeof(struct ramips_tx_dma)); priv->tx[i].txd2 |= TX_DMA_LSO | TX_DMA_DONE; priv->tx[i].txd4 &= (TX_DMA_QN_MASK | TX_DMA_PN_MASK); @@ -97,22 +97,23 @@ ramips_alloc_dma(struct net_device *dev) /* setup rx ring */ priv->rx = dma_alloc_coherent(NULL, - NUM_RX_DESC * sizeof(struct ramips_rx_dma), &priv->phy_rx, GFP_ATOMIC); + NUM_RX_DESC * sizeof(struct ramips_rx_dma), + &priv->phy_rx, GFP_ATOMIC); if (!priv->rx) goto err_cleanup; memset(priv->rx, 0, sizeof(struct ramips_rx_dma) * NUM_RX_DESC); - for(i = 0; i < NUM_RX_DESC; i++) - { + for (i = 0; i < NUM_RX_DESC; i++) { struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_LENGTH + 2); if (!new_skb) goto err_cleanup; skb_reserve(new_skb, 2); - priv->rx[i].rxd1 = - dma_map_single(NULL, skb_put(new_skb, 2), MAX_RX_LENGTH + 2, - DMA_FROM_DEVICE); + priv->rx[i].rxd1 = dma_map_single(NULL, + skb_put(new_skb, 2), + MAX_RX_LENGTH + 2, + DMA_FROM_DEVICE); priv->rx[i].rxd2 |= RX_DMA_LSO; priv->rx_skb[i] = new_skb; } @@ -141,7 +142,7 @@ ramips_setup_dma(struct net_device *dev) } static int -ramips_eth_hard_start_xmit(struct sk_buff* skb, struct net_device *dev) +ramips_eth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct raeth_priv *priv = netdev_priv(dev); unsigned long tx; @@ -149,32 +150,34 @@ ramips_eth_hard_start_xmit(struct sk_buff* skb, struct net_device *dev) unsigned int mapped_addr; unsigned long flags; - if(priv->plat->min_pkt_len) - { - if(skb->len < priv->plat->min_pkt_len) - { - if(skb_padto(skb, priv->plat->min_pkt_len)) - { - printk(KERN_ERR "ramips_eth: skb_padto failed\n"); - kfree_skb(skb); - return 0; - } - skb_put(skb, priv->plat->min_pkt_len - skb->len); - } + if (priv->plat->min_pkt_len) { + if (skb->len < priv->plat->min_pkt_len) { + if (skb_padto(skb, priv->plat->min_pkt_len)) { + printk(KERN_ERR + "ramips_eth: skb_padto failed\n"); + kfree_skb(skb); + return 0; + } + skb_put(skb, priv->plat->min_pkt_len - skb->len); + } } + dev->trans_start = jiffies; - mapped_addr = (unsigned int)dma_map_single(NULL, skb->data, skb->len, - DMA_TO_DEVICE); + mapped_addr = (unsigned int) dma_map_single(NULL, skb->data, skb->len, + DMA_TO_DEVICE); dma_sync_single_for_device(NULL, mapped_addr, skb->len, DMA_TO_DEVICE); spin_lock_irqsave(&priv->page_lock, flags); tx = ramips_fe_rr(RAMIPS_TX_CTX_IDX0); - if(tx == NUM_TX_DESC - 1) + if (tx == NUM_TX_DESC - 1) tx_next = 0; else tx_next = tx + 1; - if((priv->tx_skb[tx]) || (priv->tx_skb[tx_next]) || - !(priv->tx[tx].txd2 & TX_DMA_DONE) || !(priv->tx[tx_next].txd2 & TX_DMA_DONE)) + + if ((priv->tx_skb[tx]) || (priv->tx_skb[tx_next]) || + !(priv->tx[tx].txd2 & TX_DMA_DONE) || + !(priv->tx[tx_next].txd2 & TX_DMA_DONE)) goto out; + priv->tx[tx].txd1 = mapped_addr; priv->tx[tx].txd2 &= ~(TX_DMA_PLEN0_MASK | TX_DMA_DONE); priv->tx[tx].txd2 |= TX_DMA_PLEN0(skb->len); @@ -185,7 +188,8 @@ ramips_eth_hard_start_xmit(struct sk_buff* skb, struct net_device *dev) ramips_fe_wr((tx + 1) % NUM_TX_DESC, RAMIPS_TX_CTX_IDX0); spin_unlock_irqrestore(&priv->page_lock, flags); return NETDEV_TX_OK; -out: + + out: spin_unlock_irqrestore(&priv->page_lock, flags); dev->stats.tx_dropped++; kfree_skb(skb); @@ -195,17 +199,16 @@ out: static void ramips_eth_rx_hw(unsigned long ptr) { - struct net_device *dev = (struct net_device*)ptr; + struct net_device *dev = (struct net_device *) ptr; struct raeth_priv *priv = netdev_priv(dev); int rx; int max_rx = 16; - while(max_rx) - { + while (max_rx) { struct sk_buff *rx_skb, *new_skb; rx = (ramips_fe_rr(RAMIPS_RX_CALC_IDX0) + 1) % NUM_RX_DESC; - if(!(priv->rx[rx].rxd2 & RX_DMA_DONE)) + if (!(priv->rx[rx].rxd2 & RX_DMA_DONE)) break; max_rx--; @@ -222,18 +225,20 @@ ramips_eth_rx_hw(unsigned long ptr) priv->rx_skb[rx] = new_skb; BUG_ON(!new_skb); skb_reserve(new_skb, 2); - priv->rx[rx].rxd1 = - dma_map_single(NULL, new_skb->data, MAX_RX_LENGTH + 2, - DMA_FROM_DEVICE); + priv->rx[rx].rxd1 = dma_map_single(NULL, + new_skb->data, + MAX_RX_LENGTH + 2, + DMA_FROM_DEVICE); priv->rx[rx].rxd2 &= ~RX_DMA_DONE; wmb(); ramips_fe_wr(rx, RAMIPS_RX_CALC_IDX0); } - if(max_rx == 0) + + if (max_rx == 0) tasklet_schedule(&priv->rx_tasklet); else ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | RAMIPS_RX_DLY_INT, - RAMIPS_FE_INT_ENABLE); + RAMIPS_FE_INT_ENABLE); } static void @@ -242,30 +247,31 @@ ramips_eth_tx_housekeeping(unsigned long ptr) struct net_device *dev = (struct net_device*)ptr; struct raeth_priv *priv = netdev_priv(dev); - while((priv->tx[priv->skb_free_idx].txd2 & TX_DMA_DONE) && - (priv->tx_skb[priv->skb_free_idx])) - { - dev_kfree_skb_irq((struct sk_buff*)priv->tx_skb[priv->skb_free_idx]); + while ((priv->tx[priv->skb_free_idx].txd2 & TX_DMA_DONE) && + (priv->tx_skb[priv->skb_free_idx])) { + dev_kfree_skb_irq((struct sk_buff *) priv->tx_skb[priv->skb_free_idx]); priv->tx_skb[priv->skb_free_idx] = 0; priv->skb_free_idx++; - if(priv->skb_free_idx >= NUM_TX_DESC) + if (priv->skb_free_idx >= NUM_TX_DESC) priv->skb_free_idx = 0; } + ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | RAMIPS_TX_DLY_INT, - RAMIPS_FE_INT_ENABLE); + RAMIPS_FE_INT_ENABLE); } static int ramips_eth_set_mac_addr(struct net_device *dev, void *priv) { - unsigned char *mac = (unsigned char*)priv; + unsigned char *mac = (unsigned char *) priv; - if(netif_running(dev)) + if (netif_running(dev)) return -EBUSY; + memcpy(dev->dev_addr, ((struct sockaddr*)priv)->sa_data, dev->addr_len); ramips_fe_wr((mac[0] << 8) | mac[1], RAMIPS_GDMA1_MAC_ADRH); ramips_fe_wr(RAMIPS_GDMA1_MAC_ADRL, - (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5]); + (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5]); return 0; } @@ -285,14 +291,15 @@ ramips_eth_irq(int irq, void *dev) ramips_fe_wr(0xFFFFFFFF, RAMIPS_FE_INT_STATUS); - if(fe_int & RAMIPS_RX_DLY_INT) - { + if (fe_int & RAMIPS_RX_DLY_INT) { ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) & ~(RAMIPS_RX_DLY_INT), - RAMIPS_FE_INT_ENABLE); + RAMIPS_FE_INT_ENABLE); tasklet_schedule(&priv->rx_tasklet); } - if(fe_int & RAMIPS_TX_DLY_INT) + + if (fe_int & RAMIPS_TX_DLY_INT) ramips_eth_tx_housekeeping((unsigned long)dev); + return IRQ_HANDLED; } @@ -320,9 +327,11 @@ ramips_eth_open(struct net_device *dev) ~(RAMIPS_US_CYC_CNT_MASK << RAMIPS_US_CYC_CNT_SHIFT)) | ((rt305x_sys_freq / RAMIPS_US_CYC_CNT_DIVISOR) << RAMIPS_US_CYC_CNT_SHIFT), RAMIPS_FE_GLO_CFG); + tasklet_init(&priv->tx_housekeeping_tasklet, ramips_eth_tx_housekeeping, - (unsigned long)dev); + (unsigned long)dev); tasklet_init(&priv->rx_tasklet, ramips_eth_rx_hw, (unsigned long)dev); + ramips_fe_wr(RAMIPS_DELAY_INIT, RAMIPS_DLY_INT_CFG); ramips_fe_wr(RAMIPS_TX_DLY_INT | RAMIPS_RX_DLY_INT, RAMIPS_FE_INT_ENABLE); ramips_fe_wr(ramips_fe_rr(RAMIPS_GDMA1_FWD_CFG) & @@ -334,6 +343,7 @@ ramips_eth_open(struct net_device *dev) ramips_fe_wr(RAMIPS_PSE_FQFC_CFG_INIT, RAMIPS_PSE_FQ_CFG); ramips_fe_wr(1, RAMIPS_FE_RST_GL); ramips_fe_wr(0, RAMIPS_FE_RST_GL); + netif_start_queue(dev); return 0; @@ -379,6 +389,7 @@ ramips_eth_probe(struct net_device *dev) dev->tx_timeout = ramips_eth_timeout; dev->watchdog_timeo = TX_TIMEOUT; spin_lock_init(&priv->page_lock); + return 0; } @@ -402,11 +413,11 @@ ramips_eth_plat_probe(struct platform_device *plat) } ramips_fe_base = ioremap_nocache(res->start, res->end - res->start + 1); - if(!ramips_fe_base) + if (!ramips_fe_base) return -ENOMEM; ramips_dev = alloc_etherdev(sizeof(struct raeth_priv)); - if(!ramips_dev) { + if (!ramips_dev) { dev_err(&plat->dev, "alloc_etherdev failed\n"); err = -ENOMEM; goto err_unmap; @@ -422,7 +433,8 @@ ramips_eth_plat_probe(struct platform_device *plat) ramips_dev->addr_len = ETH_ALEN; ramips_dev->base_addr = (unsigned long)ramips_fe_base; ramips_dev->init = ramips_eth_probe; - priv = (struct raeth_priv*)netdev_priv(ramips_dev); + + priv = netdev_priv(ramips_dev); priv->plat = data; err = register_netdev(ramips_dev); -- 2.25.1