diff options
author | Maor Gottlieb <maorg@mellanox.com> | 2020-06-23 14:30:41 +0300 |
---|---|---|
committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-06-24 08:52:29 -0300 |
commit | 1776dd234a14fbef5f8581f6374c8c6ccd69cb1c (patch) | |
tree | eca8b7cb5d71af3b442bff85c7fca5f68fc0a48f /drivers | |
parent | 65959522f8060659e308977f09f3eb7b7af5e43f (diff) |
RDMA/mlx5: Add support to get QP resource in RAW format
Add a generic function to use the resource dump mechanism to get the
QP resource data.
Link: https://lore.kernel.org/r/20200623113043.1228482-10-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 1 | ||||
-rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 | ||||
-rw-r--r-- | drivers/infiniband/hw/mlx5/restrack.c | 77 |
3 files changed, 79 insertions, 0 deletions
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 @@ err: 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); +} |