diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
-rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 86 |
1 files changed, 32 insertions, 54 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 9c7b1d8e8220..af59761ddfa0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -177,32 +177,6 @@ static void stmmac_enable_all_queues(struct stmmac_priv *priv) } } -/** - * stmmac_stop_all_queues - Stop all queues - * @priv: driver private structure - */ -static void stmmac_stop_all_queues(struct stmmac_priv *priv) -{ - u32 tx_queues_cnt = priv->plat->tx_queues_to_use; - u32 queue; - - for (queue = 0; queue < tx_queues_cnt; queue++) - netif_tx_stop_queue(netdev_get_tx_queue(priv->dev, queue)); -} - -/** - * stmmac_start_all_queues - Start all queues - * @priv: driver private structure - */ -static void stmmac_start_all_queues(struct stmmac_priv *priv) -{ - u32 tx_queues_cnt = priv->plat->tx_queues_to_use; - u32 queue; - - for (queue = 0; queue < tx_queues_cnt; queue++) - netif_tx_start_queue(netdev_get_tx_queue(priv->dev, queue)); -} - static void stmmac_service_event_schedule(struct stmmac_priv *priv) { if (!test_bit(STMMAC_DOWN, &priv->state) && @@ -1455,6 +1429,19 @@ static void dma_free_tx_skbufs(struct stmmac_priv *priv, u32 queue) } /** + * stmmac_free_tx_skbufs - free TX skb buffers + * @priv: private structure + */ +static void stmmac_free_tx_skbufs(struct stmmac_priv *priv) +{ + u32 tx_queue_cnt = priv->plat->tx_queues_to_use; + u32 queue; + + for (queue = 0; queue < tx_queue_cnt; queue++) + dma_free_tx_skbufs(priv, queue); +} + +/** * free_dma_rx_desc_resources - free RX dma desc resources * @priv: private structure */ @@ -2678,7 +2665,7 @@ static int stmmac_open(struct net_device *dev) } stmmac_enable_all_queues(priv); - stmmac_start_all_queues(priv); + netif_tx_start_all_queues(priv->dev); return 0; @@ -2715,17 +2702,12 @@ static int stmmac_release(struct net_device *dev) struct stmmac_priv *priv = netdev_priv(dev); u32 chan; - if (priv->eee_enabled) - del_timer_sync(&priv->eee_ctrl_timer); - /* Stop and disconnect the PHY */ if (dev->phydev) { phy_stop(dev->phydev); phy_disconnect(dev->phydev); } - stmmac_stop_all_queues(priv); - stmmac_disable_all_queues(priv); for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) @@ -2738,6 +2720,11 @@ static int stmmac_release(struct net_device *dev) if (priv->lpi_irq > 0) free_irq(priv->lpi_irq, dev); + if (priv->eee_enabled) { + priv->tx_path_in_lpi_mode = false; + del_timer_sync(&priv->eee_ctrl_timer); + } + /* Stop TX/RX DMA and clear the descriptors */ stmmac_stop_all_dma(priv); @@ -3609,6 +3596,7 @@ static int stmmac_change_mtu(struct net_device *dev, int new_mtu) { struct stmmac_priv *priv = netdev_priv(dev); int txfifosz = priv->plat->tx_fifo_size; + const int mtu = new_mtu; if (txfifosz == 0) txfifosz = priv->dma_cap.tx_fifo_size; @@ -3626,7 +3614,7 @@ static int stmmac_change_mtu(struct net_device *dev, int new_mtu) if ((txfifosz < new_mtu) || (new_mtu > BUF_SIZE_16KiB)) return -EINVAL; - dev->mtu = new_mtu; + dev->mtu = mtu; netdev_update_features(dev); @@ -3684,7 +3672,7 @@ static int stmmac_set_features(struct net_device *netdev, /** * stmmac_interrupt - main ISR * @irq: interrupt number. - * @dev_id: to pass the net device pointer. + * @dev_id: to pass the net device pointer (must be valid). * Description: this is the main driver interrupt service routine. * It can call: * o DMA service routine (to manage incoming frame reception and transmission @@ -3708,11 +3696,6 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id) if (priv->irq_wake) pm_wakeup_event(priv->device, 0); - if (unlikely(!dev)) { - netdev_err(priv->dev, "%s: invalid dev pointer\n", __func__); - return IRQ_NONE; - } - /* Check if adapter is up */ if (test_bit(STMMAC_DOWN, &priv->state)) return IRQ_HANDLED; @@ -3723,7 +3706,6 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id) /* To handle GMAC own interrupts */ if ((priv->plat->has_gmac) || xmac) { int status = stmmac_host_irq_status(priv, priv->hw, &priv->xstats); - int mtl_status; if (unlikely(status)) { /* For LPI we need to save the tx status */ @@ -3734,17 +3716,8 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id) } for (queue = 0; queue < queues_count; queue++) { - struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue]; - - mtl_status = stmmac_host_mtl_irq_status(priv, priv->hw, - queue); - if (mtl_status != -EINVAL) - status |= mtl_status; - - if (status & CORE_IRQ_MTL_RX_OVERFLOW) - stmmac_set_rx_tail_ptr(priv, priv->ioaddr, - rx_q->rx_tail_addr, - queue); + status = stmmac_host_mtl_irq_status(priv, priv->hw, + queue); } /* PCS link status */ @@ -4524,13 +4497,17 @@ int stmmac_suspend(struct device *dev) mutex_lock(&priv->lock); netif_device_detach(ndev); - stmmac_stop_all_queues(priv); stmmac_disable_all_queues(priv); for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) del_timer_sync(&priv->tx_queue[chan].txtimer); + if (priv->eee_enabled) { + priv->tx_path_in_lpi_mode = false; + del_timer_sync(&priv->eee_ctrl_timer); + } + /* Stop TX/RX DMA */ stmmac_stop_all_dma(priv); @@ -4579,6 +4556,8 @@ static void stmmac_reset_queues_param(struct stmmac_priv *priv) tx_q->cur_tx = 0; tx_q->dirty_tx = 0; tx_q->mss = 0; + + netdev_tx_reset_queue(netdev_get_tx_queue(priv->dev, queue)); } } @@ -4625,6 +4604,7 @@ int stmmac_resume(struct device *dev) stmmac_reset_queues_param(priv); + stmmac_free_tx_skbufs(priv); stmmac_clear_descriptors(priv); stmmac_hw_setup(ndev, false); @@ -4633,8 +4613,6 @@ int stmmac_resume(struct device *dev) stmmac_enable_all_queues(priv); - stmmac_start_all_queues(priv); - mutex_unlock(&priv->lock); if (ndev->phydev) |