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IB/mlx4: Implement query SRQ 

Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein 2007-06-21 13:03:11 +03:00 committed by Roland Dreier
parent 6a775e2ba4
commit 65541cb7cf
5 changed files with 52 additions and 0 deletions
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2
drivers/infiniband/hw/mlx4/main.c
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@ -529,6 +529,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
(1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
(1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
(1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
(1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
(1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
ibdev->ib_dev.query_device = mlx4_ib_query_device;
@ -547,6 +548,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
ibdev->ib_dev.create_qp = mlx4_ib_create_qp;

1
drivers/infiniband/hw/mlx4/mlx4_ib.h
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@ -256,6 +256,7 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
struct ib_udata *udata);
int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
int mlx4_ib_destroy_srq(struct ib_srq *srq);
void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,

18
drivers/infiniband/hw/mlx4/srq.c
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@ -240,6 +240,24 @@ int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
return 0;
}
int mlx4_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr)
{
struct mlx4_ib_dev *dev = to_mdev(ibsrq->device);
struct mlx4_ib_srq *srq = to_msrq(ibsrq);
int ret;
int limit_watermark;
ret = mlx4_srq_query(dev->dev, &srq->msrq, &limit_watermark);
if (ret)
return ret;
srq_attr->srq_limit = be16_to_cpu(limit_watermark);
srq_attr->max_wr = srq->msrq.max - 1;
srq_attr->max_sge = srq->msrq.max_gs;
return 0;
}
int mlx4_ib_destroy_srq(struct ib_srq *srq)
{
struct mlx4_ib_dev *dev = to_mdev(srq->device);

30
drivers/net/mlx4/srq.c
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@ -102,6 +102,13 @@ static int mlx4_ARM_SRQ(struct mlx4_dev *dev, int srq_num, int limit_watermark)
MLX4_CMD_TIME_CLASS_B);
}
static int mlx4_QUERY_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
int srq_num)
{
return mlx4_cmd_box(dev, 0, mailbox->dma, srq_num, 0, MLX4_CMD_QUERY_SRQ,
MLX4_CMD_TIME_CLASS_A);
}
int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
u64 db_rec, struct mlx4_srq *srq)
{
@ -205,6 +212,29 @@ int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark
}
EXPORT_SYMBOL_GPL(mlx4_srq_arm);
int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark)
{
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_srq_context *srq_context;
int err;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
srq_context = mailbox->buf;
err = mlx4_QUERY_SRQ(dev, mailbox, srq->srqn);
if (err)
goto err_out;
*limit_watermark = srq_context->limit_watermark;
err_out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
EXPORT_SYMBOL_GPL(mlx4_srq_query);
int __devinit mlx4_init_srq_table(struct mlx4_dev *dev)
{
struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;

1
include/linux/mlx4/device.h
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@ -323,6 +323,7 @@ int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
u64 db_rec, struct mlx4_srq *srq);
void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);
int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);