Thread (10 messages) flat view 10 messages, 3 authors, 2018-07-14

[PATCH net-next v2 3/7] net: mvneta: increase number of buffers in RX and TX queue

From: linux@armlinux.org.uk (Russell King - ARM Linux)
Date: 2018-07-13 19:17:51
Also in: lkml, netdev

On Fri, Jul 13, 2018 at 06:18:37PM +0200, Gregory CLEMENT wrote:
From: Yelena Krivosheev <redacted>

The initial values were too small leading to poor performance when using
the software buffer management.
What does this do to latency when a large transfer is also ongoing
(iow, the classic bufferbloat issue) ?
quoted hunk ↗ jump to hunk
Signed-off-by: Yelena Krivosheev <redacted>
[gregory: extract from a larger patch]
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---
 drivers/net/ethernet/marvell/mvneta.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index f4e3943a745d..c22df28b07c8 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -295,10 +295,10 @@
 #define MVNETA_RSS_LU_TABLE_SIZE	1
 
 /* Max number of Rx descriptors */
-#define MVNETA_MAX_RXD 128
+#define MVNETA_MAX_RXD 512
 
 /* Max number of Tx descriptors */
-#define MVNETA_MAX_TXD 532
+#define MVNETA_MAX_TXD 1024
 
 /* Max number of allowed TCP segments for software TSO */
 #define MVNETA_MAX_TSO_SEGS 100
-- 
2.18.0


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