dpaa_eth: Replace for_each_online_cpu with for_each_possible_cpu

At bootime, we currently initialize a NAPI instance per each
online core, per interface. Booting with a subset of cores and
bringing up more cores afterwards means that no NAPI instances
are created for the newly added cores.
Therefore we create a NAPI instance for each possible core in
the system such that there will always be <total_no_of_cores>
NAPI instances for each interface.

This also gurantees that we do enable/disable NAPI on all possible
cores at ifconfig up/down thus eliminating the need to keep track
of the cores that were online at the previous ifconfig operation.

Even though we do create a NAPI instance and enable it for all
possible cores (including offline cores), the scheduler ensures
that NAPI will not be scheduled on offline cores.

Signed-off-by: Cristian Sovaiala <cristian.sovaiala@freescale.com>
Change-Id: I666bbb870fb8645495a80343cdbefb047c086f4c
Reviewed-on: http://git.am.freescale.net:8181/5118
Reviewed-by: Bogdan Hamciuc <bogdan.hamciuc@freescale.com>
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Rivera Jose-B46482 <German.Rivera@freescale.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/ethernet/freescale/dpa/dpaa_eth_shared.c b/drivers/net/ethernet/freescale/dpa/dpaa_eth_shared.c
index 565b46e..300c456 100644
--- a/drivers/net/ethernet/freescale/dpa/dpaa_eth_shared.c
+++ b/drivers/net/ethernet/freescale/dpa/dpaa_eth_shared.c
@@ -693,7 +693,7 @@ dpaa_eth_shared_probe(struct platform_device *_of_dev)
 		err = -ENOMEM;
 		goto alloc_percpu_failed;
 	}
-	for_each_online_cpu(i) {
+	for_each_possible_cpu(i) {
 		percpu_priv = per_cpu_ptr(priv->percpu_priv, i);
 		memset(percpu_priv, 0, sizeof(*percpu_priv));
 	}