[PATCH net-next 05/18] net: mvpp2: use RSS only when using multi-queue mode

From: Maxime Chevallier
Date: Thu Jul 12 2018 - 07:54:51 EST


From: Yan Markman <ymarkman@xxxxxxxxxxx>

Since RSS only applies when we have per-cpu rx queues, it should only
be enabled when the driver is configured to make use of multi-queue
mode.

Signed-off-by: Yan Markman <ymarkman@xxxxxxxxxxx>
[Maxime: Commit message]
Signed-off-by: Maxime Chevallier <maxime.chevallier@xxxxxxxxxxx>
---
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index b1d812b12421..75aa0dece8ae 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -3276,6 +3276,11 @@ static void mvpp2_irqs_deinit(struct mvpp2_port *port)
}
}

+static bool mvpp22_rss_is_supported(void)
+{
+ return queue_mode == MVPP2_QDIST_MULTI_MODE;
+}
+
static int mvpp2_open(struct net_device *dev)
{
struct mvpp2_port *port = netdev_priv(dev);
@@ -3368,7 +3373,7 @@ static int mvpp2_open(struct net_device *dev)

mvpp2_start_dev(port);

- if (priv->hw_version == MVPP22)
+ if (mvpp22_rss_is_supported())
mvpp22_init_rss(port);

/* Start hardware statistics gathering */
--
2.11.0