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Commit 09dab559 authored by Sneh Shah's avatar Sneh Shah
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net: stmmac: handle dma fatal irq for IPA channels 



Reset IPA offload on getting dma fatal error irq.

Change-Id: Iba1b5afa7902b307f8653e9e8e937814f79d288f
Signed-off-by: default avatarSneh Shah <snehshah@codeaurora.org>
parent 544f874d

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

+9 −3
Original line number Diff line number Diff line
@@ -2060,6 +2060,13 @@ static void stmmac_tx_err(struct stmmac_priv *priv, u32 chan) 
	struct stmmac_tx_queue *tx_q = &priv->tx_queue[chan];

	int i;



	if (tx_q->skip_sw) {

		ethqos_ipa_offload_event_handler(priv, EV_DEV_CLOSE);

		ethqos_ipa_offload_event_handler(priv, EV_DEV_OPEN);

		priv->dev->stats.tx_errors++;

		return;

	}



	netif_tx_stop_queue(netdev_get_tx_queue(priv->dev, chan));



	stmmac_stop_tx_dma(priv, chan);
@@ -2135,13 +2142,12 @@ static void stmmac_dma_interrupt(struct stmmac_priv *priv) 
	struct stmmac_rx_queue *rx_q;



	for (chan = 0; chan < tx_channel_count; chan++) {

		if (priv->tx_queue[chan].skip_sw)

			continue;

		rx_q = &priv->rx_queue[chan];



		status = priv->hw->dma->dma_interrupt(priv->ioaddr,

						      &priv->xstats, chan);

		if (likely((status & handle_rx)) || (status & handle_tx)) {

		if ((likely((status & handle_rx)) || (status & handle_tx)) &&

		    !rx_q->skip_sw) {

			if (likely(napi_schedule_prep(&rx_q->napi))) {

				stmmac_disable_dma_irq(priv, chan);

				__napi_schedule(&rx_q->napi);