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authorIan Morris <ipm@chirality.org.uk>2014-11-19 09:06:51 +0000
committerDavid S. Miller <davem@davemloft.net>2014-11-21 12:17:54 -0500
commit2e95b2a8244bfd8993f55c993f1b7d33a89124e0 (patch)
treeaf642838aafb72c6256dcd702bdea21610169cd9 /drivers/net/ethernet/marvell/sky2.c
parentenic: support skb->xmit_more (diff)
downloadlinux-dev-2e95b2a8244bfd8993f55c993f1b7d33a89124e0.tar.xz
linux-dev-2e95b2a8244bfd8993f55c993f1b7d33a89124e0.zip
sky2: use new netdev_rss_key_fill() helper
Switch to a random RSS key rather than a fixed one. Using netdev_rss_key_fill helper also ensures that all ports share a common key. See also commit 960fb622f85180f36d3aff82af53e2be3db2f888. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Cc: Mirko Lindner <mlindner@marvell.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Eric Dumazet <edumazet@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/sky2.c')
-rw-r--r--drivers/net/ethernet/marvell/sky2.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index bd3366267039..53a1cc52d496 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -1290,14 +1290,6 @@ static void rx_set_checksum(struct sky2_port *sky2)
? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
}
-/*
- * Fixed initial key as seed to RSS.
- */
-static const uint32_t rss_init_key[10] = {
- 0x7c3351da, 0x51c5cf4e, 0x44adbdd1, 0xe8d38d18, 0x48897c43,
- 0xb1d60e7e, 0x6a3dd760, 0x01a2e453, 0x16f46f13, 0x1a0e7b30
-};
-
/* Enable/disable receive hash calculation (RSS) */
static void rx_set_rss(struct net_device *dev, netdev_features_t features)
{
@@ -1313,9 +1305,12 @@ static void rx_set_rss(struct net_device *dev, netdev_features_t features)
/* Program RSS initial values */
if (features & NETIF_F_RXHASH) {
+ u32 rss_key[10];
+
+ netdev_rss_key_fill(rss_key, sizeof(rss_key));
for (i = 0; i < nkeys; i++)
sky2_write32(hw, SK_REG(sky2->port, RSS_KEY + i * 4),
- rss_init_key[i]);
+ rss_key[i]);
/* Need to turn on (undocumented) flag to make hashing work */
sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T),