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authorMadalin Bucur <madalin.bucur@nxp.com>2019-05-27 15:24:05 +0300
committerDavid S. Miller <davem@davemloft.net>2019-05-28 21:19:55 +0300
commit7aae703f8096d21e34ce5f34f16715587bc30902 (patch)
tree57450c747a85ea74bac6a8362304325c049b034a /drivers/net/ethernet
parentd484e06e25ebb937d841dac02ac1fe76ec7d4ddd (diff)
downloadlinux-7aae703f8096d21e34ce5f34f16715587bc30902.tar.xz
dpaa_eth: use only online CPU portals
Make sure only the portals for the online CPUs are used. Without this change, there are issues when someone boots with maxcpus=n, with n < actual number of cores available as frames either received or corresponding to the transmit confirmation path would be offered for dequeue to the offline CPU portals, getting lost. Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/freescale/dpaa/dpaa_eth.c9
-rw-r--r--drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c4
2 files changed, 6 insertions, 7 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index d3f2408dc9e8..f38c3fa7d705 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
@@ -780,7 +780,7 @@ static void dpaa_eth_add_channel(u16 channel)
struct qman_portal *portal;
int cpu;
- for_each_cpu(cpu, cpus) {
+ for_each_cpu_and(cpu, cpus, cpu_online_mask) {
portal = qman_get_affine_portal(cpu);
qman_p_static_dequeue_add(portal, pool);
}
@@ -896,7 +896,7 @@ static void dpaa_fq_setup(struct dpaa_priv *priv,
u16 channels[NR_CPUS];
struct dpaa_fq *fq;
- for_each_cpu(cpu, affine_cpus)
+ for_each_cpu_and(cpu, affine_cpus, cpu_online_mask)
channels[num_portals++] = qman_affine_channel(cpu);
if (num_portals == 0)
@@ -2174,7 +2174,6 @@ static int dpaa_eth_poll(struct napi_struct *napi, int budget)
if (cleaned < budget) {
napi_complete_done(napi, cleaned);
qman_p_irqsource_add(np->p, QM_PIRQ_DQRI);
-
} else if (np->down) {
qman_p_irqsource_add(np->p, QM_PIRQ_DQRI);
}
@@ -2448,7 +2447,7 @@ static void dpaa_eth_napi_enable(struct dpaa_priv *priv)
struct dpaa_percpu_priv *percpu_priv;
int i;
- for_each_possible_cpu(i) {
+ for_each_online_cpu(i) {
percpu_priv = per_cpu_ptr(priv->percpu_priv, i);
percpu_priv->np.down = 0;
@@ -2461,7 +2460,7 @@ static void dpaa_eth_napi_disable(struct dpaa_priv *priv)
struct dpaa_percpu_priv *percpu_priv;
int i;
- for_each_possible_cpu(i) {
+ for_each_online_cpu(i) {
percpu_priv = per_cpu_ptr(priv->percpu_priv, i);
percpu_priv->np.down = 1;
diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
index bdee441bc3b7..7ce2e99b594d 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
@@ -569,7 +569,7 @@ static int dpaa_set_coalesce(struct net_device *dev,
qman_dqrr_get_ithresh(portal, &prev_thresh);
/* set new values */
- for_each_cpu(cpu, cpus) {
+ for_each_cpu_and(cpu, cpus, cpu_online_mask) {
portal = qman_get_affine_portal(cpu);
res = qman_portal_set_iperiod(portal, period);
if (res)
@@ -586,7 +586,7 @@ static int dpaa_set_coalesce(struct net_device *dev,
revert_values:
/* restore previous values */
- for_each_cpu(cpu, cpus) {
+ for_each_cpu_and(cpu, cpus, cpu_online_mask) {
if (!needs_revert[cpu])
continue;
portal = qman_get_affine_portal(cpu);