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korina: reset resource buffer size to 1536 

The new value is the one used in the external patch before and allows at
least a standard MTU of 1500 to be handled correctly. Impact of this
change gets visible when bigger packets are to be received, issuing:
| ping -s 492 <IP>
and bigger payload sized led to 100% packet loss.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phil Sutter 2009-01-14 21:47:50 -08:00 committed by David S. Miller
parent b96ecfa689
commit a13b27826a
1 changed files with 4 additions and 1 deletions
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5
drivers/net/korina.c
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@ -84,7 +84,10 @@
#define KORINA_NUM_RDS 64 /* number of receive descriptors */
#define KORINA_NUM_TDS 64 /* number of transmit descriptors */
#define KORINA_RBSIZE 536 /* size of one resource buffer = Ether MTU */
/* KORINA_RBSIZE is the hardware's default maximum receive
* frame size in bytes. Having this hardcoded means that there
* is no support for MTU sizes greater than 1500. */
#define KORINA_RBSIZE 1536 /* size of one resource buffer = Ether MTU */
#define KORINA_RDS_MASK (KORINA_NUM_RDS - 1)
#define KORINA_TDS_MASK (KORINA_NUM_TDS - 1)
#define RD_RING_SIZE (KORINA_NUM_RDS * sizeof(struct dma_desc))