mlx4_core: Add a way to set the "collapsed" CQ flag

Extend the mlx4_cq_resize() API with a way to set the "collapsed" flag
for the CQ being created.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/net/mlx4/cq.c b/drivers/net/mlx4/cq.c
index 6fda0af9d0a6..95e87a2f8896 100644
--- a/drivers/net/mlx4/cq.c
+++ b/drivers/net/mlx4/cq.c
@@ -188,7 +188,8 @@ int mlx4_cq_resize(struct mlx4_dev *dev, struct mlx4_cq *cq,
 EXPORT_SYMBOL_GPL(mlx4_cq_resize);
 
 int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
-                  struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq)
+                  struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
+                  int collapsed)
 {
         struct mlx4_priv *priv = mlx4_priv(dev);
         struct mlx4_cq_table *cq_table = &priv->cq_table;
@@ -224,6 +225,7 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
         cq_context = mailbox->buf;
         memset(cq_context, 0, sizeof *cq_context);
 
+        cq_context->flags           = cpu_to_be32(!!collapsed << 18);
         cq_context->logsize_usrpage = cpu_to_be32((ilog2(nent) << 24) | uar->index);
         cq_context->comp_eqn        = priv->eq_table.eq[MLX4_EQ_COMP].eqn;
         cq_context->log_page_size   = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;