Add Receive Work Queue Indirection table operations, it includes:
create, destroy.
Signed-off-by: Yishai Hadas <yish...@mellanox.com>
Signed-off-by: Eli Cohen <e...@mellanox.com>
---
drivers/infiniband/hw/mlx5/main.c | 6 +++-
drivers/infiniband/hw/mlx5/mlx5_ib.h | 14 ++++++++
drivers/infiniband/hw/mlx5/qp.c | 56 ++++++++++++++++++++++++++++++++++
3 files changed, 75 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c
b/drivers/infiniband/hw/mlx5/main.c
index 1601f19..aa5f3c3 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1512,7 +1512,11 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
dev->ib_dev.uverbs_ex_cmd_mask |=
(1ull << IB_USER_VERBS_EX_CMD_CREATE_WQ) |
(1ull << IB_USER_VERBS_EX_CMD_MODIFY_WQ) |
- (1ull << IB_USER_VERBS_EX_CMD_DESTROY_WQ);
+ (1ull << IB_USER_VERBS_EX_CMD_DESTROY_WQ) |
+ (1ull <<
IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL) |
+ (1ull <<
IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL);
+ dev->ib_dev.create_rwq_ind_table = mlx5_ib_create_rwq_ind_table;
+ dev->ib_dev.destroy_rwq_ind_table =
mlx5_ib_destroy_rwq_ind_table;
}
err = init_node_data(dev);
if (err)
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h
b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 6c00aca..adf544e 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -173,6 +173,11 @@ enum {
MLX5_WQ_KERNEL
};
+struct mlx5_ib_rwq_ind_table {
+ struct ib_rwq_ind_table ib_rwq_ind_tbl;
+ u32 rqtn;
+};
+
/*
* Connect-IB can trigger up to four concurrent pagefaults
* per-QP.
@@ -522,6 +527,11 @@ static inline struct mlx5_ib_rwq *to_mrwq(struct ib_wq
*ibwq)
return container_of(ibwq, struct mlx5_ib_rwq, ibwq);
}
+static inline struct mlx5_ib_rwq_ind_table *to_mrwq_ind_table(struct
ib_rwq_ind_table *ib_rwq_ind_tbl)
+{
+ return container_of(ib_rwq_ind_tbl, struct mlx5_ib_rwq_ind_table,
ib_rwq_ind_tbl);
+}
+
static inline struct mlx5_ib_srq *to_mibsrq(struct mlx5_core_srq *msrq)
{
return container_of(msrq, struct mlx5_ib_srq, msrq);
@@ -665,6 +675,10 @@ struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd,
int mlx5_ib_destroy_wq(struct ib_wq *wq);
int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
enum ib_wq_attr_mask attr_mask, struct ib_udata *udata);
+struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device,
+ struct
ib_rwq_ind_table_init_attr *init_attr,
+ struct ib_udata *udata);
+int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table);
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
extern struct workqueue_struct *mlx5_ib_page_fault_wq;
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 3763205..cef137a 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -3386,6 +3386,62 @@ int mlx5_ib_destroy_wq(struct ib_wq *wq)
return 0;
}
+struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device,
+ struct
ib_rwq_ind_table_init_attr *init_attr,
+ struct ib_udata *udata)
+{
+ struct mlx5_ib_dev *dev = to_mdev(device);
+ struct mlx5_ib_rwq_ind_table *rwq_ind_tbl;
+ int sz = 1 << init_attr->log_ind_tbl_size;
+ int inlen;
+ int err;
+ int i;
+ u32 *in;
+ void *rqtc;
+
+ rwq_ind_tbl = kzalloc(sizeof(*rwq_ind_tbl), GFP_KERNEL);
+ if (!rwq_ind_tbl)
+ return ERR_PTR(-ENOMEM);
+
+ inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
+ in = mlx5_vzalloc(inlen);
+ if (!in) {
+ err = -ENOMEM;
+ goto err;
+ }
+
+ rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
+
+ MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
+ MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
+
+ for (i = 0; i < sz; i++)
+ MLX5_SET(rqtc, rqtc, rq_num[i], init_attr->ind_tbl[i]->wq_num);
+
+ err = mlx5_core_create_rqt(dev->mdev, in, inlen, &rwq_ind_tbl->rqtn);
+ kvfree(in);
+
+ if (err)
+ goto err;
+
+ rwq_ind_tbl->ib_rwq_ind_tbl.ind_tbl_num = rwq_ind_tbl->rqtn;
+ return &rwq_ind_tbl->ib_rwq_ind_tbl;
+err:
+ kfree(rwq_ind_tbl);
+ return ERR_PTR(err);
+}
+
+int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl)
+{
+ struct mlx5_ib_rwq_ind_table *rwq_ind_tbl =
to_mrwq_ind_table(ib_rwq_ind_tbl);
+ struct mlx5_ib_dev *dev = to_mdev(ib_rwq_ind_tbl->device);
+
+ mlx5_core_destroy_rqt(dev->mdev, rwq_ind_tbl->rqtn);
+
+ kfree(rwq_ind_tbl);
+ return 0;
+}
+
int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
enum ib_wq_attr_mask attr_mask, struct ib_udata *udata)
{
--
1.7.1
--
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