Improve sundance net driver RX buf size calculation

(suggested by Donald Becker)

Improve sundance net driver RX buf size calculation
(suggested by Donald Becker)
f6f2c620 · Jeff Garzik · 6896827e · f6f2c620
Commit f6f2c620 authored Sep 19, 2002 by Jeff Garzik
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drivers/net/sundance.c drivers/net/sundance.c +2 -1

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--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -60,6 +60,7 @@
 		* default to PIO, to fix chip bugs
 	- Add missing unregister_netdev (Jason Lunz)
 	- Add CONFIG_SUNDANCE_MMIO config option (jgarzik)
+	- Better rx buf size calculation (Donald Becker)

 */

@@ -973,7 +974,7 @@ static void init_ring(struct net_device *dev)
 	np->cur_rx = np->cur_tx = 0;
 	np->dirty_rx = np->dirty_tx = 0;

-	np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 36);
+	np->rx_buf_sz = (dev->mtu <= 1520 ? PKT_BUF_SZ : dev->mtu + 16);

 	/* Initialize all Rx descriptors. */
 	for (i = 0; i < RX_RING_SIZE; i++) {