netdev - [net-next 3/8] stmmac: update the driver version and doc (V4)

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Message-Id: <1318932085-14927-4-git-send-email-peppe.cavallaro@st.com>
Date:	Tue, 18 Oct 2011 12:01:20 +0200
From:	Giuseppe CAVALLARO <peppe.cavallaro@...com>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, eric.dumazet@...il.com,
	Giuseppe Cavallaro <peppe.cavallaro@...com>
Subject: [net-next 3/8] stmmac: update the driver version and doc (V4)

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@...com>
---
 Documentation/networking/stmmac.txt          |   11 ++++++++++-
 drivers/net/ethernet/stmicro/stmmac/stmmac.h |    2 +-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/networking/stmmac.txt b/Documentation/networking/stmmac.txt
index 40ec92c..8d67980 100644
--- a/Documentation/networking/stmmac.txt
+++ b/Documentation/networking/stmmac.txt
@@ -76,7 +76,16 @@ core.
 
 4.5) DMA descriptors
 Driver handles both normal and enhanced descriptors. The latter has been only
-tested on DWC Ether MAC 10/100/1000 Universal version 3.41a.
+tested on DWC Ether MAC 10/100/1000 Universal version 3.41a and later.
+
+STMMAC supports DMA descriptor to operate both in dual buffer (RING)
+and linked-list(CHAINED) mode. In RING each descriptor points to two
+data buffer pointers whereas in CHAINED mode they point to only one data
+buffer pointer. RING mode is the default.
+
+In CHAINED mode each descriptor will have pointer to next descriptor in
+the list, hence creating the explicit chaining in the descriptor itself,
+whereas such explicit chaining is not possible in RING mode.
 
 4.6) Ethtool support
 Ethtool is supported. Driver statistics and internal errors can be taken using:
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index 50e95d8..49a4af3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -20,7 +20,7 @@
   Author: Giuseppe Cavallaro <peppe.cavallaro@...com>
 *******************************************************************************/
 
-#define DRV_MODULE_VERSION	"Aug_2011"
+#define DRV_MODULE_VERSION	"Oct_2011"
 #include <linux/stmmac.h>
 
 #include "common.h"
-- 
1.7.4.4

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