diff options
author | Madalin Bucur <madalin.bucur@nxp.com> | 2019-10-31 16:37:59 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2019-10-31 12:13:34 -0700 |
commit | e06eea555b878f2c95b498aa1c485250ad30c960 (patch) | |
tree | 5b5e27ecc0843b0c361d37eb33f20875d8366942 /drivers/net/ethernet/freescale/dpaa | |
parent | a2d00f3db73dc4f6f6afcc95c1db809ea9019306 (diff) | |
download | linux-e06eea555b878f2c95b498aa1c485250ad30c960.tar.bz2 |
dpaa_eth: register a device link for the qman portal used
Before this change, unbinding the QMan portals did not trigger a
corresponding unbinding of the dpaa_eth making use of it; the first
QMan portal related operation issued afterwards crashed the kernel.
The device link ensures the dpaa_eth dependency upon the qman portal
used is honoured at the QMan portal removal.
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa')
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index d8b41a0a7e3c..6a9d12dad5d9 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -750,7 +750,7 @@ static void dpaa_release_channel(void) qman_release_pool(rx_pool_channel); } -static void dpaa_eth_add_channel(u16 channel) +static void dpaa_eth_add_channel(u16 channel, struct device *dev) { u32 pool = QM_SDQCR_CHANNELS_POOL_CONV(channel); const cpumask_t *cpus = qman_affine_cpus(); @@ -760,6 +760,7 @@ static void dpaa_eth_add_channel(u16 channel) for_each_cpu_and(cpu, cpus, cpu_online_mask) { portal = qman_get_affine_portal(cpu); qman_p_static_dequeue_add(portal, pool); + qman_start_using_portal(portal, dev); } } @@ -2873,7 +2874,7 @@ static int dpaa_eth_probe(struct platform_device *pdev) /* Walk the CPUs with affine portals * and add this pool channel to each's dequeue mask. */ - dpaa_eth_add_channel(priv->channel); + dpaa_eth_add_channel(priv->channel, &pdev->dev); dpaa_fq_setup(priv, &dpaa_fq_cbs, priv->mac_dev->port[TX]); |