The patch titled
sundance: restore the original TX FIFO overflow process.
has been added to the -mm tree. Its filename is
sundance-restore-the-original-tx-fifo-overflow-process.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: sundance: restore the original TX FIFO overflow process.
From: Jesse Huang <jesse@xxxxxxxxxxxxx>
Restore the original TX FIFO overflow process.
Signed-off-by: Jesse Huang <jesse@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/net/sundance.c | 39 ++++++++++++++++++++++++---------------
1 file changed, 24 insertions(+), 15 deletions(-)
diff -puN drivers/net/sundance.c~sundance-restore-the-original-tx-fifo-overflow-process drivers/net/sundance.c
--- a/drivers/net/sundance.c~sundance-restore-the-original-tx-fifo-overflow-process
+++ a/drivers/net/sundance.c
@@ -1164,22 +1164,31 @@ static irqreturn_t intr_handler(int irq,
if (tx_status & 0x02)
np->stats.tx_window_errors++;
- /* FIFO ERROR need to be reset tx */
- if (tx_status & 0x10) { /* Reset the Tx. */
- spin_lock(&np->lock);
- reset_tx(dev);
- spin_unlock(&np->lock);
- }
- if (tx_status & 0x1e) {
- /* need to make sure tx enabled */
- int i = 10;
- do {
- iowrite16(ioread16(ioaddr + MACCtrl1) | TxEnable, ioaddr + MACCtrl1);
- if (ioread16(ioaddr + MACCtrl1) & TxEnabled)
- break;
- mdelay(1);
- } while (--i);
+ /*
+ ** This reset has been verified on
+ ** DFE-580TX boards ! phdm@xxxxxxxxxx
+ */
+ if (tx_status & 0x10) { /* TxUnderrun */
+ unsigned short txthreshold;
+
+ txthreshold = ioread16 (ioaddr + TxStartThresh);
+ /* Restart Tx FIFO and transmitter */
+ sundance_reset(dev, (NetworkReset|FIFOReset|TxReset) << 16);
+ iowrite16 (txthreshold, ioaddr + TxStartThresh);
+ /* No need to reset the Tx pointer here */
}
+ /* Restart the Tx. */
+ iowrite16 (TxEnable, ioaddr + MACCtrl1);
+ }
+ if (tx_status & 0x1e) {
+ /* need to make sure tx enabled */
+ int i = 10;
+ do {
+ iowrite16(ioread16(ioaddr + MACCtrl1) | TxEnable, ioaddr + MACCtrl1);
+ if (ioread16(ioaddr + MACCtrl1) & TxEnabled)
+ break;
+ mdelay(1);
+ } while (--i);
}
iowrite16 (0, ioaddr + TxStatus);
_
Patches currently in -mm which might be from jesse@xxxxxxxxxxxxx are
ip100a-fix-tx-pause-bug-reset_tx-intr_handler.patch
ip100a-change-phy-address-search-from-phy=1-to-phy=0.patch
ip100a-correct-initial-and-close-hardware-step.patch
ip100a-solve-host-error-problem-in-low-performance.patch
sundance-restore-the-original-tx-fifo-overflow-process.patch
-
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