Commit 1e27a628 authored by Maxime Chevallier's avatar Maxime Chevallier Committed by David S. Miller

net: mvpp2: make sure we use single queue mode on PPv2.1

The PPv2 driver defines 2 "queue_modes" :
 - QDIST_SINGLE_MODE, where each port share one rx queue vector
   between all CPUs
 - QDIST_MULTI_MODE, where each port has one rx queue vector per CPU.

Multi queue mode isn't available on PPv2.1, make sure we fallback to
single mode when running on this revision.
Signed-off-by: default avatarMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0ad2f539
...@@ -5014,6 +5014,12 @@ static int mvpp2_probe(struct platform_device *pdev) ...@@ -5014,6 +5014,12 @@ static int mvpp2_probe(struct platform_device *pdev)
(unsigned long)of_device_get_match_data(&pdev->dev); (unsigned long)of_device_get_match_data(&pdev->dev);
} }
/* multi queue mode isn't supported on PPV2.1, fallback to single
* mode
*/
if (priv->hw_version == MVPP21)
queue_mode = MVPP2_QDIST_SINGLE_MODE;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res); base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base)) if (IS_ERR(base))
......
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