IB/mlx4: Add support for modifying CQ moderation parameters
Signed-off-by: Eli Cohen <eli@mellnaox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/net/mlx4/cq.c b/drivers/net/mlx4/cq.c
index d4441fe..8c31434 100644
--- a/drivers/net/mlx4/cq.c
+++ b/drivers/net/mlx4/cq.c
@@ -38,6 +38,7 @@
#include <linux/hardirq.h>
#include <linux/mlx4/cmd.h>
+#include <linux/mlx4/cq.h>
#include "mlx4.h"
#include "icm.h"
@@ -47,21 +48,19 @@
u16 reserved1[3];
__be16 page_offset;
__be32 logsize_usrpage;
- u8 reserved2;
- u8 cq_period;
- u8 reserved3;
- u8 cq_max_count;
- u8 reserved4[3];
+ __be16 cq_period;
+ __be16 cq_max_count;
+ u8 reserved2[3];
u8 comp_eqn;
u8 log_page_size;
- u8 reserved5[2];
+ u8 reserved3[2];
u8 mtt_base_addr_h;
__be32 mtt_base_addr_l;
__be32 last_notified_index;
__be32 solicit_producer_index;
__be32 consumer_index;
__be32 producer_index;
- u32 reserved6[2];
+ u32 reserved4[2];
__be64 db_rec_addr;
};
@@ -121,6 +120,13 @@
MLX4_CMD_TIME_CLASS_A);
}
+static int mlx4_MODIFY_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ int cq_num, u32 opmod)
+{
+ return mlx4_cmd(dev, mailbox->dma, cq_num, opmod, MLX4_CMD_MODIFY_CQ,
+ MLX4_CMD_TIME_CLASS_A);
+}
+
static int mlx4_HW2SW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int cq_num)
{
@@ -129,6 +135,30 @@
MLX4_CMD_TIME_CLASS_A);
}
+int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq,
+ u16 count, u16 period)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_cq_context *cq_context;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+
+ cq_context = mailbox->buf;
+ memset(cq_context, 0, sizeof *cq_context);
+
+ cq_context->cq_max_count = cpu_to_be16(count);
+ cq_context->cq_period = cpu_to_be16(period);
+
+ err = mlx4_MODIFY_CQ(dev, mailbox, cq->cqn, 1);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_cq_modify);
+
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)
{