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IB/mlx4: Add support for modifying CQ moderation parameters

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Signed-off-by: Eli Cohen <eli@mellnaox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Eli Cohen 2008-04-16 21:09:33 -07:00 committed by Roland Dreier
parent 28d52b3cd8
commit 3fdcb97f0b
6 changed files with 51 additions and 8 deletions
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8
drivers/infiniband/hw/mlx4/cq.c
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@ -85,6 +85,14 @@ static struct mlx4_cqe *next_cqe_sw(struct mlx4_ib_cq *cq)
return get_sw_cqe(cq, cq->mcq.cons_index);
}
int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)
{
struct mlx4_ib_cq *mcq = to_mcq(cq);
struct mlx4_ib_dev *dev = to_mdev(cq->device);
return mlx4_cq_modify(dev->dev, &mcq->mcq, cq_count, cq_period);
}
struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
struct ib_ucontext *context,
struct ib_udata *udata)

1
drivers/infiniband/hw/mlx4/main.c
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@ -609,6 +609,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
ibdev->ib_dev.post_send = mlx4_ib_post_send;
ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;

1
drivers/infiniband/hw/mlx4/mlx4_ib.h
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@ -254,6 +254,7 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
struct ib_udata *udata);
int mlx4_ib_dereg_mr(struct ib_mr *mr);
int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
struct ib_ucontext *context,
struct ib_udata *udata);

44
drivers/net/mlx4/cq.c
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@ -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 @@ struct mlx4_cq_context {
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 @@ static int mlx4_SW2HW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
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 @@ static int mlx4_HW2SW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
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)
{

2
include/linux/mlx4/cmd.h
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@ -81,7 +81,7 @@ enum {
MLX4_CMD_SW2HW_CQ = 0x16,
MLX4_CMD_HW2SW_CQ = 0x17,
MLX4_CMD_QUERY_CQ = 0x18,
MLX4_CMD_RESIZE_CQ = 0x2c,
MLX4_CMD_MODIFY_CQ = 0x2c,
/* SRQ commands */
MLX4_CMD_SW2HW_SRQ = 0x35,

3
include/linux/mlx4/cq.h
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@ -130,4 +130,7 @@ enum {
MLX4_CQ_DB_REQ_NOT = 2 << 24
};
int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq,
u16 count, u16 period);
#endif /* MLX4_CQ_H */