From: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Add a generic function that use the resource dump mechanism
to get the resource data. This patch adds the support to QP.
Signed-off-by: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/main.c | 1 +
drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 +
drivers/infiniband/hw/mlx5/restrack.c | 77 +++++++++++++++++++++++++++
3 files changed, 79 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index fa9237a10ed8..7ac75935d3c2 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -6599,6 +6599,7 @@ static const struct ib_device_ops mlx5_ib_dev_ops = {
.drain_sq = mlx5_ib_drain_sq,
.enable_driver = mlx5_ib_enable_driver,
.fill_res_mr_entry = mlx5_ib_fill_res_mr_entry,
+ .fill_res_qp_entry_raw = mlx5_ib_fill_res_qp_entry_raw,
.fill_stat_mr_entry = mlx5_ib_fill_stat_mr_entry,
.get_dev_fw_str = get_dev_fw_str,
.get_dma_mr = mlx5_ib_get_dma_mr,
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 37ead14eb317..7285c00e474d 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1376,6 +1376,7 @@ struct mlx5_core_dev *mlx5_ib_get_native_port_mdev(struct mlx5_ib_dev *dev,
void mlx5_ib_put_native_port_mdev(struct mlx5_ib_dev *dev,
u8 port_num);
int mlx5_ib_fill_res_mr_entry(struct sk_buff *msg, struct ib_mr *ib_mr);
+int mlx5_ib_fill_res_qp_entry_raw(struct sk_buff *msg, struct ib_qp *ibqp);
int mlx5_ib_fill_stat_mr_entry(struct sk_buff *msg, struct ib_mr *ib_mr);
extern const struct uapi_definition mlx5_ib_devx_defs[];
diff --git a/drivers/infiniband/hw/mlx5/restrack.c b/drivers/infiniband/hw/mlx5/restrack.c
index 598a09796d09..c8b91d8e0f42 100644
--- a/drivers/infiniband/hw/mlx5/restrack.c
+++ b/drivers/infiniband/hw/mlx5/restrack.c
@@ -4,10 +4,79 @@
*/
#include <uapi/rdma/rdma_netlink.h>
+#include <linux/mlx5/rsc_dump.h>
#include <rdma/ib_umem_odp.h>
#include <rdma/restrack.h>
#include "mlx5_ib.h"
+#define MAX_DUMP_SIZE 1024
+
+static int dump_rsc(struct mlx5_core_dev *dev, enum mlx5_sgmt_type type,
+ int index, void *data, int *data_len)
+{
+ struct mlx5_core_dev *mdev = dev;
+ struct mlx5_rsc_dump_cmd *cmd;
+ struct mlx5_rsc_key key = {};
+ struct page *page;
+ int offset = 0;
+ int err = 0;
+ int cmd_err;
+ int size;
+
+ page = alloc_page(GFP_KERNEL);
+ if (!page)
+ return -ENOMEM;
+
+ key.size = PAGE_SIZE;
+ key.rsc = type;
+ key.index1 = index;
+ key.num_of_obj1 = 1;
+
+ cmd = mlx5_rsc_dump_cmd_create(mdev, &key);
+ if (IS_ERR(cmd)) {
+ err = PTR_ERR(cmd);
+ goto free_page;
+ }
+
+ do {
+ cmd_err = mlx5_rsc_dump_next(mdev, cmd, page, &size);
+ if (cmd_err < 0 || size + offset > MAX_DUMP_SIZE) {
+ err = cmd_err;
+ goto destroy_cmd;
+ }
+ memcpy(data + offset, page_address(page), size);
+ offset += size;
+ } while (cmd_err > 0);
+ *data_len = offset;
+
+destroy_cmd:
+ mlx5_rsc_dump_cmd_destroy(cmd);
+free_page:
+ __free_page(page);
+ return err;
+}
+
+static int fill_res_raw(struct sk_buff *msg, struct mlx5_ib_dev *dev,
+ enum mlx5_sgmt_type type, u32 key)
+{
+ int len = 0;
+ void *data;
+ int err;
+
+ data = kzalloc(MAX_DUMP_SIZE, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ err = dump_rsc(dev->mdev, type, key, data, &len);
+ if (err)
+ goto out;
+
+ err = nla_put(msg, RDMA_NLDEV_ATTR_RES_RAW, len, data);
+out:
+ kfree(data);
+ return err;
+}
+
int mlx5_ib_fill_stat_mr_entry(struct sk_buff *msg,
struct ib_mr *ibmr)
{
@@ -68,3 +137,11 @@ int mlx5_ib_fill_res_mr_entry(struct sk_buff *msg,
nla_nest_cancel(msg, table_attr);
return -EMSGSIZE;
}
+
+int mlx5_ib_fill_res_qp_entry_raw(struct sk_buff *msg, struct ib_qp *ibqp)
+{
+ struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
+
+ return fill_res_raw(msg, dev, MLX5_SGMT_TYPE_PRM_QUERY_QP,
+ ibqp->qp_num);
+}
--
2.26.2
