openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

net: stmmac: stmmac interrupt treatment prepared for multiple queues 

This patch prepares the main ISR for multiple queues.

Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joao Pinto 2017-03-15 11:04:55 +00:00 committed by David S. Miller
parent 146617b88b
commit 7bac4e1ec3
1 changed files with 20 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -3115,6 +3115,12 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct stmmac_priv *priv = netdev_priv(dev);
u32 rx_cnt = priv->plat->rx_queues_to_use;
u32 tx_cnt = priv->plat->tx_queues_to_use;
u32 queues_count;
u32 queue;
queues_count = (rx_cnt > tx_cnt) ? rx_cnt : tx_cnt;
if (priv->irq_wake)
pm_wakeup_event(priv->device, 0);
@ -3129,20 +3135,26 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id)
int status = priv->hw->mac->host_irq_status(priv->hw,
&priv->xstats);
if (priv->synopsys_id >= DWMAC_CORE_4_00)
status |= priv->hw->mac->host_mtl_irq_status(priv->hw,
STMMAC_CHAN0);
if (unlikely(status)) {
/* For LPI we need to save the tx status */
if (status & CORE_IRQ_TX_PATH_IN_LPI_MODE)
priv->tx_path_in_lpi_mode = true;
if (status & CORE_IRQ_TX_PATH_EXIT_LPI_MODE)
priv->tx_path_in_lpi_mode = false;
if (status & CORE_IRQ_MTL_RX_OVERFLOW && priv->hw->dma->set_rx_tail_ptr)
priv->hw->dma->set_rx_tail_ptr(priv->ioaddr,
priv->rx_tail_addr,
STMMAC_CHAN0);
}
if (priv->synopsys_id >= DWMAC_CORE_4_00) {
for (queue = 0; queue < queues_count; queue++) {
status |=
priv->hw->mac->host_mtl_irq_status(priv->hw,
queue);
if (status & CORE_IRQ_MTL_RX_OVERFLOW &&
priv->hw->dma->set_rx_tail_ptr)
priv->hw->dma->set_rx_tail_ptr(priv->ioaddr,
priv->rx_tail_addr,
queue);
}
}
/* PCS link status */