diff options
| author | Maxime Chevallier <maxime.chevallier@bootlin.com> | 2018-07-12 13:54:12 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-12 17:30:48 -0700 |
| commit | 1e27a628e3f444f53ab8099dfb31c5156e38d112 (patch) | |
| tree | 810ca0bba165cf1986f9ac17baf35305e439e669 /drivers | |
| parent | 0ad2f53906f9a21cd72def8e1268e75a366dc7b6 (diff) | |
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: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 88f3da184d76..0d2dde336ea2 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -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)) |