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

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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: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Maxime Chevallier 2018-07-12 13:54:12 +02:00 committed by David S. Miller
parent 0ad2f53906
commit 1e27a628e3
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
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@ -5014,6 +5014,12 @@ static int mvpp2_probe(struct platform_device *pdev)
(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);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))