From: Roman Yeryomin <leroi.lists@gmail.com>
To: netdev@vger.kernel.org
Subject: [net, 3/6] net: korina: increase tx/rx ring sizes
Date: Tue, 17 Jan 2017 19:32:36 +0200 [thread overview]
Message-ID: <1484674356-22363-1-git-send-email-roman@advem.lv> (raw)
Having larger ring sizes almost eliminates rx fifo overflow, thus improving performance.
This patch reduces rx overflow occurence by approximately 1000 times (from ~25k down to ~25 times per 3M frames)
Signed-off-by: Roman Yeryomin <roman@advem.lv>
---
drivers/net/ethernet/korina.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 45bd617..02f2364 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -80,8 +80,8 @@
#define NAPI_WEIGHT 64
/* the following must be powers of two */
-#define KORINA_NUM_RDS 64 /* number of receive descriptors */
-#define KORINA_NUM_TDS 64 /* number of transmit descriptors */
+#define KORINA_NUM_RDS 256 /* number of receive descriptors */
+#define KORINA_NUM_TDS 256 /* number of transmit descriptors */
/* KORINA_RBSIZE is the hardware's default maximum receive
* frame size in bytes. Having this hardcoded means that there
--
2.7.4
next reply other threads:[~2017-01-17 17:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-17 17:32 Roman Yeryomin [this message]
2017-01-17 17:58 ` [net, 3/6] net: korina: increase tx/rx ring sizes David Miller
2017-01-17 18:27 ` Roman Yeryomin
2017-01-17 19:08 ` David Miller
2017-01-17 19:20 ` Eric Dumazet
2017-01-19 10:55 ` Roman Yeryomin
2017-01-19 13:37 ` Eric Dumazet
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