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[U-Boot,3/4] zynq: gem: Increase the Rx buffer descriptors to 32

Message ID 3406005c769b5161ffb849d20c8e99844f0668fd.1432640411.git.michal.simek@xilinx.com
State Superseded
Delegated to: Michal Simek
Headers show

Commit Message

Michal Simek May 26, 2015, 11:40 a.m. UTC 
From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>

Increase the Rx Buffer descriptors to 32. This will avoid
Rx buffer descriptors overflow if more packets were received
at one shot before we process the received ones.
This fixes the issue of intermittent timeouts during tftp
on a 1Gb connection with tftp server running on windows.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

 drivers/net/zynq_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 523f95ccfde4..f0546d75bf71 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -138,7 +138,7 @@  struct emac_bd {
 	u32 status;
 };
 
-#define RX_BUF 3
+#define RX_BUF 32
 /* Page table entries are set to 1MB, or multiples of 1MB
  * (not < 1MB). driver uses less bd's so use 1MB bdspace.
  */