From: Rob Herring <robherring2@gmail.com>
To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>,
Rob Herring <rob.herring@calxeda.com>
Subject: [PATCH 1/4] net: calxedaxgmac: fix net timeout recovery
Date: Mon, 9 Jul 2012 19:16:07 -0500 [thread overview]
Message-ID: <1341879370-23385-2-git-send-email-robherring2@gmail.com> (raw)
In-Reply-To: <1341879370-23385-1-git-send-email-robherring2@gmail.com>
From: Rob Herring <rob.herring@calxeda.com>
Fix net tx watchdog timeout recovery. The descriptor ring was reset,
but the DMA engine was not reset to the beginning of the ring.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
drivers/net/ethernet/calxeda/xgmac.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index 11f667f..c4fd2e3 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -933,6 +933,7 @@ static void xgmac_tx_err(struct xgmac_priv *priv)
desc_init_tx_desc(priv->dma_tx, DMA_TX_RING_SZ);
priv->tx_tail = 0;
priv->tx_head = 0;
+ writel(priv->dma_tx_phy, priv->base + XGMAC_DMA_TX_BASE_ADDR);
writel(reg | DMA_CONTROL_ST, priv->base + XGMAC_DMA_CONTROL);
writel(DMA_STATUS_TU | DMA_STATUS_TPS | DMA_STATUS_NIS | DMA_STATUS_AIS,
--
1.7.9.5
next prev parent reply other threads:[~2012-07-10 0:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-10 0:16 [PATCH 0/4] Calxeda xgmac fixes and performance improvements Rob Herring
2012-07-10 0:16 ` Rob Herring [this message]
2012-07-10 0:16 ` [PATCH 2/4] net: calxedaxgmac: fix hang on rx refill Rob Herring
2012-07-10 0:16 ` [PATCH 3/4] net: calxedaxgmac: set outstanding AXI bus transactions to 8 Rob Herring
2012-07-10 0:16 ` [PATCH 4/4] net: calxedaxgmac: enable rx cut-thru mode Rob Herring
2012-07-11 6:27 ` [PATCH 0/4] Calxeda xgmac fixes and performance improvements David Miller
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