From: Jesse Huang <[EMAIL PROTECTED]>
For patent issue need to remove TxStartThresh and RxEarlyThresh. This patent
is cut-through patent. If use this function, Tx will start to transmit after
few data be move in to Tx FIFO. We are not allow to use those function in
DFE530/DFE550/DFE580/DL10050/IP100/IP100A. It will decrease a little
performance.
Signed-off-by: Jesse Huang <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
drivers/net/sundance.c | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
diff -puN
drivers/net/sundance.c~sundance-remove-txstartthresh-and-rxearlythresh
drivers/net/sundance.c
--- a/drivers/net/sundance.c~sundance-remove-txstartthresh-and-rxearlythresh
+++ a/drivers/net/sundance.c
@@ -264,8 +264,6 @@ enum alta_offsets {
ASICCtrl = 0x30,
EEData = 0x34,
EECtrl = 0x36,
- TxStartThresh = 0x3c,
- RxEarlyThresh = 0x3e,
FlashAddr = 0x40,
FlashData = 0x44,
TxStatus = 0x46,
@@ -1111,6 +1109,7 @@ static irqreturn_t intr_handler(int irq,
int tx_cnt;
int tx_status;
int handled = 0;
+ int i;
do {
@@ -1153,17 +1152,14 @@ static irqreturn_t intr_handler(int irq,
np->stats.tx_fifo_errors++;
if (tx_status & 0x02)
np->stats.tx_window_errors++;
+
/*
** This reset has been verified on
** DFE-580TX boards ! [EMAIL PROTECTED]
*/
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. */
_
-
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