From: Alban Bedel <albeu@free.fr>
To: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org, jgarzik@pobox.com, davem@davemloft.net
Subject: [PATCH 2/2] 8139too: Allow using the largest possible MTU
Date: Sun, 17 Nov 2013 14:05:24 +0100 [thread overview]
Message-ID: <1384693524-20599-2-git-send-email-albeu@free.fr> (raw)
In-Reply-To: <1384693524-20599-1-git-send-email-albeu@free.fr>
This driver allows MTU up to 1518 bytes which is not enought to run
batman-adv. Simply raise the maximum packet size up to the maximum
allowed by the transmit descriptor, 1792 bytes, giving a maximum MTU
of 1774 bytes.
Signed-off-by: Alban Bedel <albeu@free.fr>
---
drivers/net/ethernet/realtek/8139too.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
index 9d5d6d1..7be187a 100644
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -183,7 +183,7 @@ static int debug = -1;
#define NUM_TX_DESC 4
/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
-#define MAX_ETH_FRAME_SIZE 1536
+#define MAX_ETH_FRAME_SIZE 1792
/* max supported payload size */
#define MAX_ETH_DATA_SIZE (MAX_ETH_FRAME_SIZE - ETH_HLEN - ETH_FCS_LEN)
--
1.8.4.2
next prev parent reply other threads:[~2013-11-17 13:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-17 13:05 [PATCH 1/2] 8139too: Allow setting MTU larger than 1500 Alban Bedel
2013-11-17 13:05 ` Alban Bedel [this message]
2013-11-18 20:50 ` David Miller
2014-11-08 11:48 Alban Bedel
2014-11-08 11:48 ` [PATCH 2/2] 8139too: Allow using the largest possible MTU Alban Bedel
2014-11-10 20:30 ` David Miller
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