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korina: do tx at the right position

Triggering TX before the write to the DMA status mask register leads to
transferring packets with maximum payload no matter what the actual
packet size is.
While here, also trigger RX scheduling after writing the DMA status mask
register, like it was in the original driver before it was sent
upstream.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Phil Sutter 16 vuotta sitten
vanhempi
commit
60d3f9827c
1 muutettua tiedostoa jossa 4 lisäystä ja 4 poistoa
  1. 4 4
      drivers/net/korina.c

+ 4 - 4
drivers/net/korina.c

@@ -330,13 +330,13 @@ static irqreturn_t korina_rx_dma_interrupt(int irq, void *dev_id)
 
 	dmas = readl(&lp->rx_dma_regs->dmas);
 	if (dmas & (DMA_STAT_DONE | DMA_STAT_HALT | DMA_STAT_ERR)) {
-		netif_rx_schedule(&lp->napi);
-
 		dmasm = readl(&lp->rx_dma_regs->dmasm);
 		writel(dmasm | (DMA_STAT_DONE |
 				DMA_STAT_HALT | DMA_STAT_ERR),
 				&lp->rx_dma_regs->dmasm);
 
+		netif_rx_schedule(&lp->napi);
+
 		if (dmas & DMA_STAT_ERR)
 			printk(KERN_ERR DRV_NAME "%s: DMA error\n", dev->name);
 
@@ -623,12 +623,12 @@ korina_tx_dma_interrupt(int irq, void *dev_id)
 	dmas = readl(&lp->tx_dma_regs->dmas);
 
 	if (dmas & (DMA_STAT_FINI | DMA_STAT_ERR)) {
-		korina_tx(dev);
-
 		dmasm = readl(&lp->tx_dma_regs->dmasm);
 		writel(dmasm | (DMA_STAT_FINI | DMA_STAT_ERR),
 				&lp->tx_dma_regs->dmasm);
 
+		korina_tx(dev);
+
 		if (lp->tx_chain_status == desc_filled &&
 			(readl(&(lp->tx_dma_regs->dmandptr)) == 0)) {
 			writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]),