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path: root/drivers/net/ethernet/mellanox/mlx4/eq.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/eq.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/eq.c69
1 files changed, 8 insertions, 61 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index d954ec1eac17..2a004b347e1d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -53,11 +53,6 @@ enum {
53 MLX4_EQ_ENTRY_SIZE = 0x20 53 MLX4_EQ_ENTRY_SIZE = 0x20
54}; 54};
55 55
56struct mlx4_irq_notify {
57 void *arg;
58 struct irq_affinity_notify notify;
59};
60
61#define MLX4_EQ_STATUS_OK ( 0 << 28) 56#define MLX4_EQ_STATUS_OK ( 0 << 28)
62#define MLX4_EQ_STATUS_WRITE_FAIL (10 << 28) 57#define MLX4_EQ_STATUS_WRITE_FAIL (10 << 28)
63#define MLX4_EQ_OWNER_SW ( 0 << 24) 58#define MLX4_EQ_OWNER_SW ( 0 << 24)
@@ -1088,57 +1083,6 @@ static void mlx4_unmap_clr_int(struct mlx4_dev *dev)
1088 iounmap(priv->clr_base); 1083 iounmap(priv->clr_base);
1089} 1084}
1090 1085
1091static void mlx4_irq_notifier_notify(struct irq_affinity_notify *notify,
1092 const cpumask_t *mask)
1093{
1094 struct mlx4_irq_notify *n = container_of(notify,
1095 struct mlx4_irq_notify,
1096 notify);
1097 struct mlx4_priv *priv = (struct mlx4_priv *)n->arg;
1098 struct radix_tree_iter iter;
1099 void **slot;
1100
1101 radix_tree_for_each_slot(slot, &priv->cq_table.tree, &iter, 0) {
1102 struct mlx4_cq *cq = (struct mlx4_cq *)(*slot);
1103
1104 if (cq->irq == notify->irq)
1105 cq->irq_affinity_change = true;
1106 }
1107}
1108
1109static void mlx4_release_irq_notifier(struct kref *ref)
1110{
1111 struct mlx4_irq_notify *n = container_of(ref, struct mlx4_irq_notify,
1112 notify.kref);
1113 kfree(n);
1114}
1115
1116static void mlx4_assign_irq_notifier(struct mlx4_priv *priv,
1117 struct mlx4_dev *dev, int irq)
1118{
1119 struct mlx4_irq_notify *irq_notifier = NULL;
1120 int err = 0;
1121
1122 irq_notifier = kzalloc(sizeof(*irq_notifier), GFP_KERNEL);
1123 if (!irq_notifier) {
1124 mlx4_warn(dev, "Failed to allocate irq notifier. irq %d\n",
1125 irq);
1126 return;
1127 }
1128
1129 irq_notifier->notify.irq = irq;
1130 irq_notifier->notify.notify = mlx4_irq_notifier_notify;
1131 irq_notifier->notify.release = mlx4_release_irq_notifier;
1132 irq_notifier->arg = priv;
1133 err = irq_set_affinity_notifier(irq, &irq_notifier->notify);
1134 if (err) {
1135 kfree(irq_notifier);
1136 irq_notifier = NULL;
1137 mlx4_warn(dev, "Failed to set irq notifier. irq %d\n", irq);
1138 }
1139}
1140
1141
1142int mlx4_alloc_eq_table(struct mlx4_dev *dev) 1086int mlx4_alloc_eq_table(struct mlx4_dev *dev)
1143{ 1087{
1144 struct mlx4_priv *priv = mlx4_priv(dev); 1088 struct mlx4_priv *priv = mlx4_priv(dev);
@@ -1409,8 +1353,6 @@ int mlx4_assign_eq(struct mlx4_dev *dev, char *name, struct cpu_rmap *rmap,
1409 continue; 1353 continue;
1410 /*we dont want to break here*/ 1354 /*we dont want to break here*/
1411 } 1355 }
1412 mlx4_assign_irq_notifier(priv, dev,
1413 priv->eq_table.eq[vec].irq);
1414 1356
1415 eq_set_ci(&priv->eq_table.eq[vec], 1); 1357 eq_set_ci(&priv->eq_table.eq[vec], 1);
1416 } 1358 }
@@ -1427,6 +1369,14 @@ int mlx4_assign_eq(struct mlx4_dev *dev, char *name, struct cpu_rmap *rmap,
1427} 1369}
1428EXPORT_SYMBOL(mlx4_assign_eq); 1370EXPORT_SYMBOL(mlx4_assign_eq);
1429 1371
1372int mlx4_eq_get_irq(struct mlx4_dev *dev, int vec)
1373{
1374 struct mlx4_priv *priv = mlx4_priv(dev);
1375
1376 return priv->eq_table.eq[vec].irq;
1377}
1378EXPORT_SYMBOL(mlx4_eq_get_irq);
1379
1430void mlx4_release_eq(struct mlx4_dev *dev, int vec) 1380void mlx4_release_eq(struct mlx4_dev *dev, int vec)
1431{ 1381{
1432 struct mlx4_priv *priv = mlx4_priv(dev); 1382 struct mlx4_priv *priv = mlx4_priv(dev);
@@ -1438,9 +1388,6 @@ void mlx4_release_eq(struct mlx4_dev *dev, int vec)
1438 Belonging to a legacy EQ*/ 1388 Belonging to a legacy EQ*/
1439 mutex_lock(&priv->msix_ctl.pool_lock); 1389 mutex_lock(&priv->msix_ctl.pool_lock);
1440 if (priv->msix_ctl.pool_bm & 1ULL << i) { 1390 if (priv->msix_ctl.pool_bm & 1ULL << i) {
1441 irq_set_affinity_notifier(
1442 priv->eq_table.eq[vec].irq,
1443 NULL);
1444 free_irq(priv->eq_table.eq[vec].irq, 1391 free_irq(priv->eq_table.eq[vec].irq,
1445 &priv->eq_table.eq[vec]); 1392 &priv->eq_table.eq[vec]);
1446 priv->msix_ctl.pool_bm &= ~(1ULL << i); 1393 priv->msix_ctl.pool_bm &= ~(1ULL << i);