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Commit a13b2782 authored by Phil Sutter's avatar Phil Sutter Committed by David S. Miller
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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: default avatarPhil Sutter <n0-1@freewrt.org>
Acked-by: default avatarFlorian Fainelli <florian@openwrt.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b96ecfa6

drivers/net/korina.c

+4 −1
Original line number Original line Diff line number Diff line
@@ -84,7 +84,10 @@ 
#define KORINA_NUM_RDS	64  /* number of receive descriptors */

#define KORINA_NUM_RDS	64  /* number of receive descriptors */

#define KORINA_NUM_TDS	64  /* number of transmit 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_RDS_MASK	(KORINA_NUM_RDS - 1)

#define KORINA_TDS_MASK	(KORINA_NUM_TDS - 1)

#define KORINA_TDS_MASK	(KORINA_NUM_TDS - 1)

#define RD_RING_SIZE 	(KORINA_NUM_RDS * sizeof(struct dma_desc))

#define RD_RING_SIZE 	(KORINA_NUM_RDS * sizeof(struct dma_desc))