From 3d2066526c138fd8f4a801c5d00037edf02df90e Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 25 Jan 2009 13:36:27 +0000 Subject: update 2.6.27 patches with upstream fixes from git repository and mailing-lists. via-rhine is still broken, thus not switching to 2.6.27 as default. SVN-Revision: 14173 --- ...08-korina_reset_resource_buffer_size_1536.patch | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 target/linux/rb532/patches-2.6.27/008-korina_reset_resource_buffer_size_1536.patch (limited to 'target/linux/rb532/patches-2.6.27/008-korina_reset_resource_buffer_size_1536.patch') diff --git a/target/linux/rb532/patches-2.6.27/008-korina_reset_resource_buffer_size_1536.patch b/target/linux/rb532/patches-2.6.27/008-korina_reset_resource_buffer_size_1536.patch new file mode 100644 index 0000000000..1db2e0ecb1 --- /dev/null +++ b/target/linux/rb532/patches-2.6.27/008-korina_reset_resource_buffer_size_1536.patch @@ -0,0 +1,31 @@ +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 +and bigger payload sized led to 100% packet loss. + +Signed-off-by: Phil Sutter +--- + drivers/net/korina.c | 5 ++++- + 1 files changed, 4 insertions(+), 1 deletions(-) + +diff --git a/drivers/net/korina.c b/drivers/net/korina.c +index fefb33d..e30c2f4 100644 +--- a/drivers/net/korina.c ++++ b/drivers/net/korina.c +@@ -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)) +-- +1.5.6.4 + + -- cgit v1.2.3