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[U-Boot,v2,3/4] zynq: gem: Increase the Rx buffer descriptors to 32

Message ID f0805b2613a82fda536ec8d62509448d21af49b6.1432796446.git.michal.simek@xilinx.com
State Accepted
Delegated to: Michal Simek
Headers show

Commit Message

Michal Simek May 28, 2015, 7 a.m. UTC 
From: Siva Durga Prasad Paladugu <siva.durga.paladugu at 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 at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

Changes in v2: None

 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 eca7feeae94a..f4c2252d0c14 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.
  */