[PATCH 4/4] IP100A: Solve host error problem in low performance embedded system when continune down and up. 2006-08-24

[PATCH 4/4] IP100A: Solve host error problem in low performance embedded system when continune down and up. 2006-08-24

[Jesse Huang]

From: Jesse Huang <jesse@icplus.com.tw>

Change Logs:
   - Solve host error problem in low performance embedded 
     system when continune down and up.

Signed-off-by: Jesse Huang <jesse@icplus.com.tw>

---

 drivers/net/sundance.c |   28 ++++++++++++++++++++++++----
 1 files changed, 24 insertions(+), 4 deletions(-)

b7c2fba3fb7179d18c8b1c4af316c8a14d8ec1b8
diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index 04ad4d8..a253924 100755
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -1076,7 +1076,7 @@ reset_tx (struct net_device *dev)
 	struct sk_buff *skb;
 	int i;
 	int irq = in_interrupt();
-	
+
 	/* Reset tx logic, TxListPtr will be cleaned */
 	iowrite16 (TxDisable, ioaddr + MACCtrl1);
 	iowrite16 (TxReset | DMAReset | FIFOReset | NetworkReset,
@@ -1647,6 +1647,14 @@ static int netdev_close(struct net_devic
 	struct sk_buff *skb;
 	int i;
 
+	/* Wait and kill tasklet */
+	tasklet_kill(&np->rx_tasklet);
+	tasklet_kill(&np->tx_tasklet);
+	np->cur_tx = 0;
+	np->dirty_tx = 0;
+	np->cur_task = 0;
+	np->last_tx = 0;
+
 	netif_stop_queue(dev);
 
 	if (netif_msg_ifdown(np)) {
@@ -1667,9 +1675,20 @@ static int netdev_close(struct net_devic
 	/* Stop the chip's Tx and Rx processes. */
 	iowrite16(TxDisable | RxDisable | StatsDisable, ioaddr + MACCtrl1);
 
-	/* Wait and kill tasklet */
-	tasklet_kill(&np->rx_tasklet);
-	tasklet_kill(&np->tx_tasklet);
+    	for (i = 2000; i > 0; i--) {
+ 		if ((ioread32(ioaddr + DMACtrl) &0xC000) == 0)
+			break;
+		mdelay(1);
+    	}
+
+    	iowrite16(GlobalReset | DMAReset | FIFOReset | NetworkReset, ioaddr +ASICCtrl + 2);
+
+    	for (i = 2000; i > 0; i--)
+    	{
+ 		if ((ioread16(ioaddr + ASICCtrl +2) &ResetBusy) == 0)
+			break;
+		mdelay(1);
+    	}
 
 #ifdef __i386__
 	if (netif_msg_hw(np)) {
@@ -1707,6 +1726,7 @@ #endif /* __i386__ debugging only */
 		}
 	}
 	for (i = 0; i < TX_RING_SIZE; i++) {
+		np->tx_ring[i].next_desc = 0;
 		skb = np->tx_skbuff[i];
 		if (skb) {
 			pci_unmap_single(np->pci_dev,
-- 
1.3.GIT

What is current sundance.c status?

[Jesse Huang]

Dear Jeff:

Would you tell me what is current sundance.c status
which support IP100A? Are those patches update to
current tree or not? Is there anything should I need to
add to it and generate new patches?

Thank you very much.

Best Regards,
Jesse Huang

Re: What is current sundance.c status?

[Jeff Garzik]

Jesse Huang wrote:
> Dear Jeff:
> 
> Would you tell me what is current sundance.c status
> which support IP100A? Are those patches update to
> current tree or not? Is there anything should I need to
> add to it and generate new patches?

I think they disappeared from my queue somewhere :(

Would you be kind enough to resend your patchset?

	Jeff

Re: What is current sundance.c status?

[Jesse Huang]

OK! I will resend my patchset.

Thanks!

Jesse
----- Original Message ----- 
From: "Jeff Garzik" <jgarzik@pobox.com>
To: "Jesse Huang" <jesse@icplus.com.tw>
Cc: <linux-kernel@vger.kernel.org>; <netdev@vger.kernel.org>;
<akpm@osdl.org>
Sent: Wednesday, September 13, 2006 12:05 AM
Subject: Re: What is current sundance.c status?


Jesse Huang wrote:
> Dear Jeff:
>
> Would you tell me what is current sundance.c status
> which support IP100A? Are those patches update to
> current tree or not? Is there anything should I need to
> add to it and generate new patches?

I think they disappeared from my queue somewhere :(

Would you be kind enough to resend your patchset?

Jeff

[PATCH 4/4] IP100A: Solve host error problem in low performance embedded system when continune down and up. 2006-08-24

[Jesse Huang]

From: Jesse Huang <jesse@icplus.com.tw>

Change Logs:
   - Solve host error problem in low performance embedded 
     system when continune down and up.

Signed-off-by: Jesse Huang <jesse@icplus.com.tw>

---

 drivers/net/sundance.c |   28 ++++++++++++++++++++++++----
 1 files changed, 24 insertions(+), 4 deletions(-)

b7c2fba3fb7179d18c8b1c4af316c8a14d8ec1b8
diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index 04ad4d8..a253924 100755
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -1076,7 +1076,7 @@ reset_tx (struct net_device *dev)
 	struct sk_buff *skb;
 	int i;
 	int irq = in_interrupt();
-	
+
 	/* Reset tx logic, TxListPtr will be cleaned */
 	iowrite16 (TxDisable, ioaddr + MACCtrl1);
 	iowrite16 (TxReset | DMAReset | FIFOReset | NetworkReset,
@@ -1647,6 +1647,14 @@ static int netdev_close(struct net_devic
 	struct sk_buff *skb;
 	int i;
 
+	/* Wait and kill tasklet */
+	tasklet_kill(&np->rx_tasklet);
+	tasklet_kill(&np->tx_tasklet);
+	np->cur_tx = 0;
+	np->dirty_tx = 0;
+	np->cur_task = 0;
+	np->last_tx = 0;
+
 	netif_stop_queue(dev);
 
 	if (netif_msg_ifdown(np)) {
@@ -1667,9 +1675,20 @@ static int netdev_close(struct net_devic
 	/* Stop the chip's Tx and Rx processes. */
 	iowrite16(TxDisable | RxDisable | StatsDisable, ioaddr + MACCtrl1);
 
-	/* Wait and kill tasklet */
-	tasklet_kill(&np->rx_tasklet);
-	tasklet_kill(&np->tx_tasklet);
+    	for (i = 2000; i > 0; i--) {
+ 		if ((ioread32(ioaddr + DMACtrl) &0xC000) == 0)
+			break;
+		mdelay(1);
+    	}
+
+    	iowrite16(GlobalReset | DMAReset | FIFOReset | NetworkReset, ioaddr +ASICCtrl + 2);
+
+    	for (i = 2000; i > 0; i--)
+    	{
+ 		if ((ioread16(ioaddr + ASICCtrl +2) &ResetBusy) == 0)
+			break;
+		mdelay(1);
+    	}
 
 #ifdef __i386__
 	if (netif_msg_hw(np)) {
@@ -1707,6 +1726,7 @@ #endif /* __i386__ debugging only */
 		}
 	}
 	for (i = 0; i < TX_RING_SIZE; i++) {
+		np->tx_ring[i].next_desc = 0;
 		skb = np->tx_skbuff[i];
 		if (skb) {
 			pci_unmap_single(np->pci_dev,
-- 
1.3.GIT