>From 749a2b62acc505a9ab2437eddb4cdd45503183d0 Mon Sep 17 00:00:00 2001
From: Yevgeny Petrilin <[EMAIL PROTECTED]>
Date: Tue, 22 Apr 2008 15:50:51 +0300
Subject: [PATCH] mlx4: Collapsed CQ support
Changed cq creation API to support the creation of collapsed cqs.
Signed-off-by: Yevgeny Petrilin <[EMAIL PROTECTED]>
---
drivers/infiniband/hw/mlx4/cq.c | 2 +-
drivers/net/mlx4/cq.c | 4 +++-
include/linux/mlx4/device.h | 3 ++-
3 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 5e570bb..63daf52 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -221,7 +221,7 @@ struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev,
int entries, int vector
}
err = mlx4_cq_alloc(dev->dev, entries, &cq->buf.mtt, uar,
- cq->db.dma, &cq->mcq);
+ cq->db.dma, &cq->mcq, 0);
if (err)
goto err_dbmap;
diff --git a/drivers/net/mlx4/cq.c b/drivers/net/mlx4/cq.c
index caa5bcf..d893cc1 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;
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 4ca3a00..93c17aa 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -440,7 +440,8 @@ void mlx4_free_hwq_res(struct mlx4_dev *mdev, struct
mlx4_hwq_resources *wqres,
int size);
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);
void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base);
--
1.5.4
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