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path: root/drivers/infiniband/hw/mlx4/main.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx4/main.c')
-rw-r--r--drivers/infiniband/hw/mlx4/main.c104
1 files changed, 94 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index b948b6dd5d55..ee1c577238f7 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -789,7 +789,7 @@ static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
list_del(&ge->list);
kfree(ge);
} else
- printk(KERN_WARNING "could not find mgid entry\n");
+ pr_warn("could not find mgid entry\n");
mutex_unlock(&mqp->mutex);
@@ -902,7 +902,7 @@ static void update_gids_task(struct work_struct *work)
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
- printk(KERN_WARNING "update gid table failed %ld\n", PTR_ERR(mailbox));
+ pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox));
return;
}
@@ -913,7 +913,7 @@ static void update_gids_task(struct work_struct *work)
1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_NATIVE);
if (err)
- printk(KERN_WARNING "set port command failed\n");
+ pr_warn("set port command failed\n");
else {
memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids);
event.device = &gw->dev->ib_dev;
@@ -1076,18 +1076,98 @@ static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event
return NOTIFY_DONE;
}
+static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
+{
+ char name[32];
+ int eq_per_port = 0;
+ int added_eqs = 0;
+ int total_eqs = 0;
+ int i, j, eq;
+
+ /* Init eq table */
+ ibdev->eq_table = NULL;
+ ibdev->eq_added = 0;
+
+ /* Legacy mode? */
+ if (dev->caps.comp_pool == 0)
+ return;
+
+ eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/
+ dev->caps.num_ports);
+
+ /* Init eq table */
+ added_eqs = 0;
+ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
+ added_eqs += eq_per_port;
+
+ total_eqs = dev->caps.num_comp_vectors + added_eqs;
+
+ ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL);
+ if (!ibdev->eq_table)
+ return;
+
+ ibdev->eq_added = added_eqs;
+
+ eq = 0;
+ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) {
+ for (j = 0; j < eq_per_port; j++) {
+ sprintf(name, "mlx4-ib-%d-%d@%s",
+ i, j, dev->pdev->bus->name);
+ /* Set IRQ for specific name (per ring) */
+ if (mlx4_assign_eq(dev, name, &ibdev->eq_table[eq])) {
+ /* Use legacy (same as mlx4_en driver) */
+ pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq);
+ ibdev->eq_table[eq] =
+ (eq % dev->caps.num_comp_vectors);
+ }
+ eq++;
+ }
+ }
+
+ /* Fill the reset of the vector with legacy EQ */
+ for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++)
+ ibdev->eq_table[eq++] = i;
+
+ /* Advertise the new number of EQs to clients */
+ ibdev->ib_dev.num_comp_vectors = total_eqs;
+}
+
+static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
+{
+ int i;
+ int total_eqs;
+
+ /* Reset the advertised EQ number */
+ ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
+
+ /* Free only the added eqs */
+ for (i = 0; i < ibdev->eq_added; i++) {
+ /* Don't free legacy eqs if used */
+ if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors)
+ continue;
+ mlx4_release_eq(dev, ibdev->eq_table[i]);
+ }
+
+ total_eqs = dev->caps.num_comp_vectors + ibdev->eq_added;
+ memset(ibdev->eq_table, 0, total_eqs * sizeof(int));
+ kfree(ibdev->eq_table);
+
+ ibdev->eq_table = NULL;
+ ibdev->eq_added = 0;
+}
+
static void *mlx4_ib_add(struct mlx4_dev *dev)
{
struct mlx4_ib_dev *ibdev;
int num_ports = 0;
- int i;
+ int i, j;
int err;
struct mlx4_ib_iboe *iboe;
- printk_once(KERN_INFO "%s", mlx4_ib_version);
+ pr_info_once("%s", mlx4_ib_version);
if (mlx4_is_mfunc(dev)) {
- printk(KERN_WARNING "IB not yet supported in SRIOV\n");
+ pr_warn("IB not yet supported in SRIOV\n");
return NULL;
}
@@ -1210,6 +1290,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
(1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
}
+ mlx4_ib_alloc_eqs(dev, ibdev);
+
spin_lock_init(&iboe->lock);
if (init_node_data(ibdev))
@@ -1241,9 +1323,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
goto err_reg;
}
- for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) {
+ for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
if (device_create_file(&ibdev->ib_dev.dev,
- mlx4_class_attributes[i]))
+ mlx4_class_attributes[j]))
goto err_notif;
}
@@ -1253,7 +1335,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
err_notif:
if (unregister_netdevice_notifier(&ibdev->iboe.nb))
- printk(KERN_WARNING "failure unregistering notifier\n");
+ pr_warn("failure unregistering notifier\n");
flush_workqueue(wq);
err_reg:
@@ -1288,7 +1370,7 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
ib_unregister_device(&ibdev->ib_dev);
if (ibdev->iboe.nb.notifier_call) {
if (unregister_netdevice_notifier(&ibdev->iboe.nb))
- printk(KERN_WARNING "failure unregistering notifier\n");
+ pr_warn("failure unregistering notifier\n");
ibdev->iboe.nb.notifier_call = NULL;
}
iounmap(ibdev->uar_map);
@@ -1298,6 +1380,8 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
mlx4_CLOSE_PORT(dev, p);
+ mlx4_ib_free_eqs(dev, ibdev);
+
mlx4_uar_free(dev, &ibdev->priv_uar);
mlx4_pd_free(dev, ibdev->priv_pdn);
ib_dealloc_device(&ibdev->ib_dev);