IB/mlx4: Implement query QP

[linux-2.6-omap-h63xx.git] / drivers / net / mlx4 / qp.c

diff --git a/drivers/net/mlx4/qp.c b/drivers/net/mlx4/qp.c
index 492cfaaaa75cbf3b687214df37462f268118ce7e..19b48c71cf7f2e315eb31ba8a47af6b824c2d181 100644 (file)
--- a/drivers/net/mlx4/qp.c
+++ b/drivers/net/mlx4/qp.c
@@ -277,3 +277,24 @@ void mlx4_cleanup_qp_table(struct mlx4_dev *dev)
        mlx4_CONF_SPECIAL_QP(dev, 0);
        mlx4_bitmap_cleanup(&mlx4_priv(dev)->qp_table.bitmap);
 }
+
+int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
+                 struct mlx4_qp_context *context)
+{
+       struct mlx4_cmd_mailbox *mailbox;
+       int err;
+
+       mailbox = mlx4_alloc_cmd_mailbox(dev);
+       if (IS_ERR(mailbox))
+               return PTR_ERR(mailbox);
+
+       err = mlx4_cmd_box(dev, 0, mailbox->dma, qp->qpn, 0,
+                          MLX4_CMD_QUERY_QP, MLX4_CMD_TIME_CLASS_A);
+       if (!err)
+               memcpy(context, mailbox->buf + 8, sizeof *context);
+
+       mlx4_free_cmd_mailbox(dev, mailbox);
+       return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_query);
+