linux-kernel - [PATCH net] net: mvpp2: fix the RSS table entry offset

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Message-Id: <20171208092420.452-1-antoine.tenart@free-electrons.com>
Date:   Fri,  8 Dec 2017 10:24:20 +0100
From:   Antoine Tenart <antoine.tenart@...e-electrons.com>
To:     davem@...emloft.net
Cc:     Antoine Tenart <antoine.tenart@...e-electrons.com>,
        gregory.clement@...e-electrons.com,
        thomas.petazzoni@...e-electrons.com,
        miquel.raynal@...e-electrons.com, nadavh@...vell.com,
        mw@...ihalf.com, stefanc@...vell.com, ymarkman@...vell.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net] net: mvpp2: fix the RSS table entry offset

The macro used to access or set an RSS table entry was using an offset
of 8, while it should use an offset of 0. This lead to wrongly configure
the RSS table, not accessing the right entries.

Fixes: 1d7d15d79fb4 ("net: mvpp2: initialize the RSS tables")
Signed-off-by: Antoine Tenart <antoine.tenart@...e-electrons.com>
---
 drivers/net/ethernet/marvell/mvpp2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index fed2b2f909fc..634b2f41cc9e 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -85,7 +85,7 @@
 
 /* RSS Registers */
 #define MVPP22_RSS_INDEX			0x1500
-#define     MVPP22_RSS_INDEX_TABLE_ENTRY(idx)	((idx) << 8)
+#define     MVPP22_RSS_INDEX_TABLE_ENTRY(idx)	(idx)
 #define     MVPP22_RSS_INDEX_TABLE(idx)		((idx) << 8)
 #define     MVPP22_RSS_INDEX_QUEUE(idx)		((idx) << 16)
 #define MVPP22_RSS_TABLE_ENTRY			0x1508
-- 
2.14.3