mlx4: Add support for promiscuous mode in the new steering model.
For Ethernet mode only,
When we want to register QP as promiscuous, it must be added to all the
existing steering entries and also to the default one.
The promiscuous QP might also be on of "real" QPs,
which means we need to monitor every entry to avoid duplicates and ensure
we close an entry when all it has is promiscuous QPs.
Same mechanism both for unicast and multicast.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index da0da28..c8e2761 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -1063,6 +1063,59 @@
device_remove_file(&info->dev->pdev->dev, &info->port_attr);
}
+static int mlx4_init_steering(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int num_entries = dev->caps.num_ports;
+ int i, j;
+
+ priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
+ if (!priv->steer)
+ return -ENOMEM;
+
+ for (i = 0; i < num_entries; i++) {
+ for (j = 0; j < MLX4_NUM_STEERS; j++) {
+ INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
+ INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
+ }
+ INIT_LIST_HEAD(&priv->steer[i].high_prios);
+ }
+ return 0;
+}
+
+static void mlx4_clear_steering(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_steer_index *entry, *tmp_entry;
+ struct mlx4_promisc_qp *pqp, *tmp_pqp;
+ int num_entries = dev->caps.num_ports;
+ int i, j;
+
+ for (i = 0; i < num_entries; i++) {
+ for (j = 0; j < MLX4_NUM_STEERS; j++) {
+ list_for_each_entry_safe(pqp, tmp_pqp,
+ &priv->steer[i].promisc_qps[j],
+ list) {
+ list_del(&pqp->list);
+ kfree(pqp);
+ }
+ list_for_each_entry_safe(entry, tmp_entry,
+ &priv->steer[i].steer_entries[j],
+ list) {
+ list_del(&entry->list);
+ list_for_each_entry_safe(pqp, tmp_pqp,
+ &entry->duplicates,
+ list) {
+ list_del(&pqp->list);
+ kfree(pqp);
+ }
+ kfree(entry);
+ }
+ }
+ }
+ kfree(priv->steer);
+}
+
static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct mlx4_priv *priv;
@@ -1172,6 +1225,10 @@
mlx4_enable_msi_x(dev);
+ err = mlx4_init_steering(dev);
+ if (err)
+ goto err_free_eq;
+
err = mlx4_setup_hca(dev);
if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) {
dev->flags &= ~MLX4_FLAG_MSI_X;
@@ -1180,7 +1237,7 @@
}
if (err)
- goto err_free_eq;
+ goto err_steer;
for (port = 1; port <= dev->caps.num_ports; port++) {
err = mlx4_init_port_info(dev, port);
@@ -1213,6 +1270,9 @@
mlx4_cleanup_pd_table(dev);
mlx4_cleanup_uar_table(dev);
+err_steer:
+ mlx4_clear_steering(dev);
+
err_free_eq:
mlx4_free_eq_table(dev);
@@ -1272,6 +1332,7 @@
iounmap(priv->kar);
mlx4_uar_free(dev, &priv->driver_uar);
mlx4_cleanup_uar_table(dev);
+ mlx4_clear_steering(dev);
mlx4_free_eq_table(dev);
mlx4_close_hca(dev);
mlx4_cmd_cleanup(dev);