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IB/mlx5: Add obj create and destroy functionality

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Add support to create and destroy firmware objects via the DEVX
interface.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Yishai Hadas 2018-06-17 13:00:01 +03:00 committed by Jason Gunthorpe
parent 8aa8c95ce4
commit 7efce3691d
2 changed files with 350 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

337
drivers/infiniband/hw/mlx5/devx.c
View File

@ -16,6 +16,14 @@
#define UVERBS_MODULE_NAME mlx5_ib #define UVERBS_MODULE_NAME mlx5_ib
#include <rdma/uverbs_named_ioctl.h> #include <rdma/uverbs_named_ioctl.h>
#define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in)
struct devx_obj {
struct mlx5_core_dev *mdev;
u32 obj_id;
u32 dinlen; /* destroy inbox length */
u32 dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW];
};
static struct mlx5_ib_ucontext *devx_ufile2uctx(struct ib_uverbs_file *file) static struct mlx5_ib_ucontext *devx_ufile2uctx(struct ib_uverbs_file *file)
{ {
return to_mucontext(ib_uverbs_get_ucontext(file)); return to_mucontext(ib_uverbs_get_ucontext(file));
@ -65,7 +73,52 @@ void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev,
mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
} }
static bool devx_is_general_cmd(void *in) static bool devx_is_obj_create_cmd(const void *in)
{
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
switch (opcode) {
case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
case MLX5_CMD_OP_CREATE_MKEY:
case MLX5_CMD_OP_CREATE_CQ:
case MLX5_CMD_OP_ALLOC_PD:
case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
case MLX5_CMD_OP_CREATE_RMP:
case MLX5_CMD_OP_CREATE_SQ:
case MLX5_CMD_OP_CREATE_RQ:
case MLX5_CMD_OP_CREATE_RQT:
case MLX5_CMD_OP_CREATE_TIR:
case MLX5_CMD_OP_CREATE_TIS:
case MLX5_CMD_OP_ALLOC_Q_COUNTER:
case MLX5_CMD_OP_CREATE_FLOW_TABLE:
case MLX5_CMD_OP_CREATE_FLOW_GROUP:
case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
case MLX5_CMD_OP_ALLOC_ENCAP_HEADER:
case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
case MLX5_CMD_OP_CREATE_QP:
case MLX5_CMD_OP_CREATE_SRQ:
case MLX5_CMD_OP_CREATE_XRC_SRQ:
case MLX5_CMD_OP_CREATE_DCT:
case MLX5_CMD_OP_CREATE_XRQ:
case MLX5_CMD_OP_ATTACH_TO_MCG:
case MLX5_CMD_OP_ALLOC_XRCD:
return true;
case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
{
u16 op_mod = MLX5_GET(set_fte_in, in, op_mod);
if (op_mod == 0)
return true;
return false;
}
default:
return false;
}
}
static bool devx_is_general_cmd(const void *in)
{ {
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
@ -95,7 +148,8 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(struct ib_device *ib_dev,
{ {
struct mlx5_ib_ucontext *c = devx_ufile2uctx(file); struct mlx5_ib_ucontext *c = devx_ufile2uctx(file);
struct mlx5_ib_dev *dev = to_mdev(ib_dev); struct mlx5_ib_dev *dev = to_mdev(ib_dev);
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN); void *cmd_in = uverbs_attr_get_alloced_ptr(
attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN);
int cmd_out_len = uverbs_attr_get_len(attrs, int cmd_out_len = uverbs_attr_get_len(attrs,
MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT); MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT);
void *cmd_out; void *cmd_out;
@ -126,6 +180,256 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(struct ib_device *ib_dev,
return err; return err;
} }
static void devx_obj_build_destroy_cmd(void *in, void *out, void *din,
u32 *dinlen,
u32 *obj_id)
{
u16 obj_type = MLX5_GET(general_obj_in_cmd_hdr, in, obj_type);
u16 uid = MLX5_GET(general_obj_in_cmd_hdr, in, uid);
*obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
*dinlen = MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr);
MLX5_SET(general_obj_in_cmd_hdr, din, obj_id, *obj_id);
MLX5_SET(general_obj_in_cmd_hdr, din, uid, uid);
switch (MLX5_GET(general_obj_in_cmd_hdr, in, opcode)) {
case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
MLX5_SET(general_obj_in_cmd_hdr, din, obj_type, obj_type);
break;
case MLX5_CMD_OP_CREATE_MKEY:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_MKEY);
break;
case MLX5_CMD_OP_CREATE_CQ:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_CQ);
break;
case MLX5_CMD_OP_ALLOC_PD:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_PD);
break;
case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
break;
case MLX5_CMD_OP_CREATE_RMP:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RMP);
break;
case MLX5_CMD_OP_CREATE_SQ:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SQ);
break;
case MLX5_CMD_OP_CREATE_RQ:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQ);
break;
case MLX5_CMD_OP_CREATE_RQT:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQT);
break;
case MLX5_CMD_OP_CREATE_TIR:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIR);
break;
case MLX5_CMD_OP_CREATE_TIS:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIS);
break;
case MLX5_CMD_OP_ALLOC_Q_COUNTER:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DEALLOC_Q_COUNTER);
break;
case MLX5_CMD_OP_CREATE_FLOW_TABLE:
*dinlen = MLX5_ST_SZ_BYTES(destroy_flow_table_in);
*obj_id = MLX5_GET(create_flow_table_out, out, table_id);
MLX5_SET(destroy_flow_table_in, din, other_vport,
MLX5_GET(create_flow_table_in, in, other_vport));
MLX5_SET(destroy_flow_table_in, din, vport_number,
MLX5_GET(create_flow_table_in, in, vport_number));
MLX5_SET(destroy_flow_table_in, din, table_type,
MLX5_GET(create_flow_table_in, in, table_type));
MLX5_SET(destroy_flow_table_in, din, table_id, *obj_id);
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DESTROY_FLOW_TABLE);
break;
case MLX5_CMD_OP_CREATE_FLOW_GROUP:
*dinlen = MLX5_ST_SZ_BYTES(destroy_flow_group_in);
*obj_id = MLX5_GET(create_flow_group_out, out, group_id);
MLX5_SET(destroy_flow_group_in, din, other_vport,
MLX5_GET(create_flow_group_in, in, other_vport));
MLX5_SET(destroy_flow_group_in, din, vport_number,
MLX5_GET(create_flow_group_in, in, vport_number));
MLX5_SET(destroy_flow_group_in, din, table_type,
MLX5_GET(create_flow_group_in, in, table_type));
MLX5_SET(destroy_flow_group_in, din, table_id,
MLX5_GET(create_flow_group_in, in, table_id));
MLX5_SET(destroy_flow_group_in, din, group_id, *obj_id);
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DESTROY_FLOW_GROUP);
break;
case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
*dinlen = MLX5_ST_SZ_BYTES(delete_fte_in);
*obj_id = MLX5_GET(set_fte_in, in, flow_index);
MLX5_SET(delete_fte_in, din, other_vport,
MLX5_GET(set_fte_in, in, other_vport));
MLX5_SET(delete_fte_in, din, vport_number,
MLX5_GET(set_fte_in, in, vport_number));
MLX5_SET(delete_fte_in, din, table_type,
MLX5_GET(set_fte_in, in, table_type));
MLX5_SET(delete_fte_in, din, table_id,
MLX5_GET(set_fte_in, in, table_id));
MLX5_SET(delete_fte_in, din, flow_index, *obj_id);
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
break;
case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
break;
case MLX5_CMD_OP_ALLOC_ENCAP_HEADER:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DEALLOC_ENCAP_HEADER);
break;
case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
break;
case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
*dinlen = MLX5_ST_SZ_BYTES(destroy_scheduling_element_in);
*obj_id = MLX5_GET(create_scheduling_element_out, out,
scheduling_element_id);
MLX5_SET(destroy_scheduling_element_in, din,
scheduling_hierarchy,
MLX5_GET(create_scheduling_element_in, in,
scheduling_hierarchy));
MLX5_SET(destroy_scheduling_element_in, din,
scheduling_element_id, *obj_id);
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DESTROY_SCHEDULING_ELEMENT);
break;
case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
*dinlen = MLX5_ST_SZ_BYTES(delete_vxlan_udp_dport_in);
*obj_id = MLX5_GET(add_vxlan_udp_dport_in, in, vxlan_udp_port);
MLX5_SET(delete_vxlan_udp_dport_in, din, vxlan_udp_port, *obj_id);
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT);
break;
case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
*dinlen = MLX5_ST_SZ_BYTES(delete_l2_table_entry_in);
*obj_id = MLX5_GET(set_l2_table_entry_in, in, table_index);
MLX5_SET(delete_l2_table_entry_in, din, table_index, *obj_id);
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
break;
case MLX5_CMD_OP_CREATE_QP:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_QP);
break;
case MLX5_CMD_OP_CREATE_SRQ:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SRQ);
break;
case MLX5_CMD_OP_CREATE_XRC_SRQ:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
MLX5_CMD_OP_DESTROY_XRC_SRQ);
break;
case MLX5_CMD_OP_CREATE_DCT:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_DCT);
break;
case MLX5_CMD_OP_CREATE_XRQ:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_XRQ);
break;
case MLX5_CMD_OP_ATTACH_TO_MCG:
*dinlen = MLX5_ST_SZ_BYTES(detach_from_mcg_in);
MLX5_SET(detach_from_mcg_in, din, qpn,
MLX5_GET(attach_to_mcg_in, in, qpn));
memcpy(MLX5_ADDR_OF(detach_from_mcg_in, din, multicast_gid),
MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid),
MLX5_FLD_SZ_BYTES(attach_to_mcg_in, multicast_gid));
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
break;
case MLX5_CMD_OP_ALLOC_XRCD:
MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_XRCD);
break;
default:
/* The entry must match to one of the devx_is_obj_create_cmd */
WARN_ON(true);
break;
}
}
static int devx_obj_cleanup(struct ib_uobject *uobject,
enum rdma_remove_reason why)
{
u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
struct devx_obj *obj = uobject->object;
int ret;
ret = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
if (ret && why == RDMA_REMOVE_DESTROY)
return ret;
kfree(obj);
return ret;
}
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_DESTROY)(struct ib_device *ib_dev,
struct ib_uverbs_file *file,
struct uverbs_attr_bundle *attrs)
{
return 0;
}
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(struct ib_device *ib_dev,
struct ib_uverbs_file *file,
struct uverbs_attr_bundle *attrs)
{
struct mlx5_ib_ucontext *c = devx_ufile2uctx(file);
struct mlx5_ib_dev *dev = to_mdev(ib_dev);
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN);
int cmd_out_len = uverbs_attr_get_len(attrs,
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT);
void *cmd_out;
struct ib_uobject *uobj;
struct devx_obj *obj;
int err;
if (!c->devx_uid)
return -EPERM;
if (!devx_is_obj_create_cmd(cmd_in))
return -EINVAL;
obj = kzalloc(sizeof(struct devx_obj), GFP_KERNEL);
if (!obj)
return -ENOMEM;
cmd_out = kvzalloc(cmd_out_len, GFP_KERNEL);
if (!cmd_out) {
err = -ENOMEM;
goto obj_free;
}
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, c->devx_uid);
err = mlx5_cmd_exec(dev->mdev, cmd_in,
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN),
cmd_out, cmd_out_len);
if (err)
goto cmd_free;
uobj = uverbs_attr_get_uobject(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
uobj->object = obj;
obj->mdev = dev->mdev;
devx_obj_build_destroy_cmd(cmd_in, cmd_out, obj->dinbox, &obj->dinlen, &obj->obj_id);
WARN_ON(obj->dinlen > MLX5_MAX_DESTROY_INBOX_SIZE_DW * sizeof(u32));
err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, cmd_out, cmd_out_len);
if (err)
goto cmd_free;
kvfree(cmd_out);
return 0;
cmd_free:
kvfree(cmd_out);
obj_free:
kfree(obj);
return err;
}
static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OTHER, static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OTHER,
&UVERBS_ATTR_PTR_IN_SZ(MLX5_IB_ATTR_DEVX_OTHER_CMD_IN, &UVERBS_ATTR_PTR_IN_SZ(MLX5_IB_ATTR_DEVX_OTHER_CMD_IN,
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
@ -138,8 +442,35 @@ static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OTHER,
UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO)) UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO))
); );
static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE,
&UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE,
MLX5_IB_OBJECT_DEVX_OBJ,
UVERBS_ACCESS_NEW,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
&UVERBS_ATTR_PTR_IN_SZ(MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN,
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY |
UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO |
UVERBS_ATTR_SPEC_F_ALLOC_AND_COPY)),
&UVERBS_ATTR_PTR_OUT_SZ(MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT,
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY |
UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO)));
static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY,
&UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_DESTROY_HANDLE,
MLX5_IB_OBJECT_DEVX_OBJ,
UVERBS_ACCESS_DESTROY,
UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
static DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX, static DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX,
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER)); &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER));
static DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ,
&UVERBS_TYPE_ALLOC_IDR(0, devx_obj_cleanup),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE),
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY));
static DECLARE_UVERBS_OBJECT_TREE(devx_objects, static DECLARE_UVERBS_OBJECT_TREE(devx_objects,
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX)); &UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX),
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ));

16
include/uapi/rdma/mlx5_user_ioctl_cmds.h
View File

@ -54,8 +54,24 @@ enum mlx5_ib_devx_other_attrs {
MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT,
}; };
enum mlx5_ib_devx_obj_create_attrs {
MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN,
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT,
};
enum mlx5_ib_devx_obj_destroy_attrs {
MLX5_IB_ATTR_DEVX_OBJ_DESTROY_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
};
enum mlx5_ib_devx_obj_methods {
MLX5_IB_METHOD_DEVX_OBJ_CREATE = (1U << UVERBS_ID_NS_SHIFT),
MLX5_IB_METHOD_DEVX_OBJ_DESTROY,
};
enum mlx5_ib_devx_objects { enum mlx5_ib_devx_objects {
MLX5_IB_OBJECT_DEVX = (1U << UVERBS_ID_NS_SHIFT), MLX5_IB_OBJECT_DEVX = (1U << UVERBS_ID_NS_SHIFT),
MLX5_IB_OBJECT_DEVX_OBJ,
}; };
#endif #endif