X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/483781cdb7a0951eccb97ee5f08a7a5bede0bc8d..e6e930942664682d11abe4ad7ccd0bada1afecfa:/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c index c8c61dead..4519ec8dc 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c @@ -1,7 +1,7 @@ /* * Atheros AR71xx built-in ethernet mac driver * - * Copyright (C) 2008-2009 Gabor Juhos + * Copyright (C) 2008-2010 Gabor Juhos * Copyright (C) 2008 Imre Kaloz * * Based on Atheros' AG7100 driver @@ -11,7 +11,6 @@ * by the Free Software Foundation. */ -#include #include "ag71xx.h" #define AG71XX_DEFAULT_MSG_ENABLE \ @@ -186,9 +185,11 @@ static void ag71xx_ring_rx_clean(struct ag71xx *ag) return; for (i = 0; i < AG71XX_RX_RING_SIZE; i++) - if (ring->buf[i].skb) + if (ring->buf[i].skb) { + dma_unmap_single(&ag->dev->dev, ring->buf[i].dma_addr, + AG71XX_RX_PKT_SIZE, DMA_FROM_DEVICE); kfree_skb(ring->buf[i].skb); - + } } static int ag71xx_ring_rx_init(struct ag71xx *ag) @@ -209,21 +210,23 @@ static int ag71xx_ring_rx_init(struct ag71xx *ag) for (i = 0; i < AG71XX_RX_RING_SIZE; i++) { struct sk_buff *skb; + dma_addr_t dma_addr; - skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE); + skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE + AG71XX_RX_PKT_RESERVE); if (!skb) { ret = -ENOMEM; break; } - dma_map_single(NULL, skb->data, AG71XX_RX_PKT_SIZE, - DMA_FROM_DEVICE); - skb->dev = ag->dev; skb_reserve(skb, AG71XX_RX_PKT_RESERVE); + dma_addr = dma_map_single(&ag->dev->dev, skb->data, + AG71XX_RX_PKT_SIZE, + DMA_FROM_DEVICE); ring->buf[i].skb = skb; - ring->buf[i].desc->data = virt_to_phys(skb->data); + ring->buf[i].dma_addr = dma_addr; + ring->buf[i].desc->data = (u32) dma_addr; ring->buf[i].desc->ctrl = DESC_EMPTY; } @@ -248,20 +251,24 @@ static int ag71xx_ring_rx_refill(struct ag71xx *ag) i = ring->dirty % AG71XX_RX_RING_SIZE; if (ring->buf[i].skb == NULL) { + dma_addr_t dma_addr; struct sk_buff *skb; - skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE); + skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE + + AG71XX_RX_PKT_RESERVE); if (skb == NULL) break; - dma_map_single(NULL, skb->data, AG71XX_RX_PKT_SIZE, - DMA_FROM_DEVICE); - skb_reserve(skb, AG71XX_RX_PKT_RESERVE); skb->dev = ag->dev; + dma_addr = dma_map_single(&ag->dev->dev, skb->data, + AG71XX_RX_PKT_SIZE, + DMA_FROM_DEVICE); + ring->buf[i].skb = skb; - ring->buf[i].desc->data = virt_to_phys(skb->data); + ring->buf[i].dma_addr = dma_addr; + ring->buf[i].desc->data = (u32) dma_addr; } ring->buf[i].desc->ctrl = DESC_EMPTY; @@ -303,16 +310,117 @@ static void ag71xx_rings_cleanup(struct ag71xx *ag) ag71xx_ring_free(&ag->tx_ring); } +static unsigned char *ag71xx_speed_str(struct ag71xx *ag) +{ + switch (ag->speed) { + case SPEED_1000: + return "1000"; + case SPEED_100: + return "100"; + case SPEED_10: + return "10"; + } + + return "?"; +} + +void ag71xx_link_adjust(struct ag71xx *ag) +{ + struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); + u32 cfg2; + u32 ifctl; + u32 fifo5; + u32 mii_speed; + + if (!ag->link) { + netif_carrier_off(ag->dev); + if (netif_msg_link(ag)) + printk(KERN_INFO "%s: link down\n", ag->dev->name); + return; + } + + cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2); + cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX); + cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0; + + ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL); + ifctl &= ~(MAC_IFCTL_SPEED); + + fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5); + fifo5 &= ~FIFO_CFG5_BM; + + switch (ag->speed) { + case SPEED_1000: + mii_speed = MII_CTRL_SPEED_1000; + cfg2 |= MAC_CFG2_IF_1000; + fifo5 |= FIFO_CFG5_BM; + break; + case SPEED_100: + mii_speed = MII_CTRL_SPEED_100; + cfg2 |= MAC_CFG2_IF_10_100; + ifctl |= MAC_IFCTL_SPEED; + break; + case SPEED_10: + mii_speed = MII_CTRL_SPEED_10; + cfg2 |= MAC_CFG2_IF_10_100; + break; + default: + BUG(); + return; + } + + if (pdata->is_ar91xx) + ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, 0x00780fff); + else if (pdata->is_ar724x) + ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, pdata->fifo_cfg3); + else + ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, 0x008001ff); + + if (pdata->set_pll) + pdata->set_pll(ag->speed); + + ag71xx_mii_ctrl_set_speed(ag, mii_speed); + + ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2); + ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5); + ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl); + + netif_carrier_on(ag->dev); + if (netif_msg_link(ag)) + printk(KERN_INFO "%s: link up (%sMbps/%s duplex)\n", + ag->dev->name, + ag71xx_speed_str(ag), + (DUPLEX_FULL == ag->duplex) ? "Full" : "Half"); + + DBG("%s: fifo_cfg0=%#x, fifo_cfg1=%#x, fifo_cfg2=%#x\n", + ag->dev->name, + ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0), + ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1), + ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2)); + + DBG("%s: fifo_cfg3=%#x, fifo_cfg4=%#x, fifo_cfg5=%#x\n", + ag->dev->name, + ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3), + ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4), + ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5)); + + DBG("%s: mac_cfg2=%#x, mac_ifctl=%#x, mii_ctrl=%#x\n", + ag->dev->name, + ag71xx_rr(ag, AG71XX_REG_MAC_CFG2), + ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL), + ag71xx_mii_ctrl_rr(ag)); +} + static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac) { u32 t; - t = (((u32) mac[0]) << 24) | (((u32) mac[1]) << 16) - | (((u32) mac[2]) << 8) | ((u32) mac[3]); + t = (((u32) mac[5]) << 24) | (((u32) mac[4]) << 16) + | (((u32) mac[3]) << 8) | ((u32) mac[2]); ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t); - t = (((u32) mac[4]) << 24) | (((u32) mac[5]) << 16); + t = (((u32) mac[1]) << 24) | (((u32) mac[0]) << 16); ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t); } @@ -390,7 +498,12 @@ static void ag71xx_hw_init(struct ag71xx *ag) mdelay(100); /* setup MAC configuration registers */ - ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_INIT); + if (pdata->is_ar724x) + ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, + MAC_CFG1_INIT | MAC_CFG1_TFC | MAC_CFG1_RFC); + else + ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_INIT); + ag71xx_sb(ag, AG71XX_REG_MAC_CFG2, MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK); @@ -467,15 +580,15 @@ static int ag71xx_stop(struct net_device *dev) struct ag71xx *ag = netdev_priv(dev); unsigned long flags; + netif_carrier_off(dev); + ag71xx_phy_stop(ag); + spin_lock_irqsave(&ag->lock, flags); netif_stop_queue(dev); ag71xx_hw_stop(ag); - netif_carrier_off(dev); - ag71xx_phy_stop(ag); - napi_disable(&ag->napi); del_timer_sync(&ag->oom_timer); @@ -486,11 +599,13 @@ static int ag71xx_stop(struct net_device *dev) return 0; } -static int ag71xx_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb, + struct net_device *dev) { struct ag71xx *ag = netdev_priv(dev); struct ag71xx_ring *ring = &ag->tx_ring; struct ag71xx_desc *desc; + dma_addr_t dma_addr; int i; i = ring->curr % AG71XX_TX_RING_SIZE; @@ -506,12 +621,13 @@ static int ag71xx_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) goto err_drop; } - dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE); + dma_addr = dma_map_single(&dev->dev, skb->data, skb->len, + DMA_TO_DEVICE); ring->buf[i].skb = skb; /* setup descriptor fields */ - desc->data = virt_to_phys(skb->data); + desc->data = (u32) dma_addr; desc->ctrl = (skb->len & DESC_PKTLEN_M); /* flush descriptor */ @@ -528,15 +644,13 @@ static int ag71xx_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) /* enable TX engine */ ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE); - dev->trans_start = jiffies; - - return 0; + return NETDEV_TX_OK; err_drop: dev->stats.tx_dropped++; dev_kfree_skb(skb); - return 0; + return NETDEV_TX_OK; } static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) @@ -608,10 +722,10 @@ static void ag71xx_restart_work_func(struct work_struct *work) ag71xx_open(ag->dev); } -static void ag71xx_tx_packets(struct ag71xx *ag) +static int ag71xx_tx_packets(struct ag71xx *ag) { struct ag71xx_ring *ring = &ag->tx_ring; - unsigned int sent; + int sent; DBG("%s: processing TX ring\n", ag->dev->name); @@ -641,6 +755,7 @@ static void ag71xx_tx_packets(struct ag71xx *ag) if ((ring->curr - ring->dirty) < AG71XX_TX_THRES_WAKEUP) netif_wake_queue(ag->dev); + return sent; } static int ag71xx_rx_packets(struct ag71xx *ag, int limit) @@ -672,6 +787,9 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit) pktlen = ag71xx_desc_pktlen(desc); pktlen -= ETH_FCS_LEN; + dma_unmap_single(&dev->dev, ring->buf[i].dma_addr, + AG71XX_RX_PKT_SIZE, DMA_FROM_DEVICE); + skb_put(skb, pktlen); skb->dev = dev; @@ -711,13 +829,16 @@ static int ag71xx_poll(struct napi_struct *napi, int limit) struct ag71xx_ring *rx_ring; unsigned long flags; u32 status; - int done; + int tx_done; + int rx_done; pdata->ddr_flush(); - ag71xx_tx_packets(ag); + tx_done = ag71xx_tx_packets(ag); DBG("%s: processing RX ring\n", dev->name); - done = ag71xx_rx_packets(ag, limit); + rx_done = ag71xx_rx_packets(ag, limit); + + ag71xx_debugfs_update_napi_stats(ag, rx_done, tx_done); rx_ring = &ag->rx_ring; if (rx_ring->buf[rx_ring->dirty % AG71XX_RX_RING_SIZE].skb == NULL) @@ -732,7 +853,7 @@ static int ag71xx_poll(struct napi_struct *napi, int limit) ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE); } - if (done < limit) { + if (rx_done < limit) { if (status & RX_STATUS_PR) goto more; @@ -740,8 +861,8 @@ static int ag71xx_poll(struct napi_struct *napi, int limit) if (status & TX_STATUS_PS) goto more; - DBG("%s: disable polling mode, done=%d, limit=%d\n", - dev->name, done, limit); + DBG("%s: disable polling mode, rx=%d, tx=%d,limit=%d\n", + dev->name, rx_done, tx_done, limit); napi_complete(napi); @@ -749,13 +870,13 @@ static int ag71xx_poll(struct napi_struct *napi, int limit) spin_lock_irqsave(&ag->lock, flags); ag71xx_int_enable(ag, AG71XX_INT_POLL); spin_unlock_irqrestore(&ag->lock, flags); - return done; + return rx_done; } more: - DBG("%s: stay in polling mode, done=%d, limit=%d\n", - dev->name, done, limit); - return done; + DBG("%s: stay in polling mode, rx=%d, tx=%d, limit=%d\n", + dev->name, rx_done, tx_done, limit); + return rx_done; oom: if (netif_msg_rx_err(ag)) @@ -795,6 +916,8 @@ static irqreturn_t ag71xx_interrupt(int irq, void *dev_id) napi_schedule(&ag->napi); } + ag71xx_debugfs_update_int_stats(ag, status); + return IRQ_HANDLED; } @@ -922,10 +1045,16 @@ static int __init ag71xx_probe(struct platform_device *pdev) if (err) goto err_unregister_netdev; + err = ag71xx_debugfs_init(ag); + if (err) + goto err_phy_disconnect; + platform_set_drvdata(pdev, dev); return 0; + err_phy_disconnect: + ag71xx_phy_disconnect(ag); err_unregister_netdev: unregister_netdev(dev); err_free_irq: @@ -948,6 +1077,7 @@ static int __exit ag71xx_remove(struct platform_device *pdev) if (dev) { struct ag71xx *ag = netdev_priv(dev); + ag71xx_debugfs_exit(ag); ag71xx_phy_disconnect(ag); unregister_netdev(dev); free_irq(dev->irq, dev); @@ -972,10 +1102,14 @@ static int __init ag71xx_module_init(void) { int ret; - ret = ag71xx_mdio_driver_init(); + ret = ag71xx_debugfs_root_init(); if (ret) goto err_out; + ret = ag71xx_mdio_driver_init(); + if (ret) + goto err_debugfs_exit; + ret = platform_driver_register(&ag71xx_driver); if (ret) goto err_mdio_exit; @@ -984,6 +1118,8 @@ static int __init ag71xx_module_init(void) err_mdio_exit: ag71xx_mdio_driver_exit(); + err_debugfs_exit: + ag71xx_debugfs_root_exit(); err_out: return ret; } @@ -992,6 +1128,7 @@ static void __exit ag71xx_module_exit(void) { platform_driver_unregister(&ag71xx_driver); ag71xx_mdio_driver_exit(); + ag71xx_debugfs_root_exit(); } module_init(ag71xx_module_init);