forked from mirrors/linux
IB/mlx5: Add obj create and destroy functionality
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
Jason Gunthorpe
parent
8aa8c95ce4
commit
7efce3691d
2 changed files with 350 additions and 3 deletions
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@ -16,6 +16,14 @@
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#define UVERBS_MODULE_NAME mlx5_ib
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#include <rdma/uverbs_named_ioctl.h>
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#define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in)
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struct devx_obj {
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struct mlx5_core_dev *mdev;
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u32 obj_id;
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u32 dinlen; /* destroy inbox length */
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u32 dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW];
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};
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static struct mlx5_ib_ucontext *devx_ufile2uctx(struct ib_uverbs_file *file)
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{
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return to_mucontext(ib_uverbs_get_ucontext(file));
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@ -65,7 +73,52 @@ void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev,
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mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
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}
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static bool devx_is_general_cmd(void *in)
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static bool devx_is_obj_create_cmd(const void *in)
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{
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u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
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switch (opcode) {
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case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
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case MLX5_CMD_OP_CREATE_MKEY:
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case MLX5_CMD_OP_CREATE_CQ:
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case MLX5_CMD_OP_ALLOC_PD:
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case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
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case MLX5_CMD_OP_CREATE_RMP:
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case MLX5_CMD_OP_CREATE_SQ:
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case MLX5_CMD_OP_CREATE_RQ:
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case MLX5_CMD_OP_CREATE_RQT:
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case MLX5_CMD_OP_CREATE_TIR:
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case MLX5_CMD_OP_CREATE_TIS:
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case MLX5_CMD_OP_ALLOC_Q_COUNTER:
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case MLX5_CMD_OP_CREATE_FLOW_TABLE:
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case MLX5_CMD_OP_CREATE_FLOW_GROUP:
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case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
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case MLX5_CMD_OP_ALLOC_ENCAP_HEADER:
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case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
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case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
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case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
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case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
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case MLX5_CMD_OP_CREATE_QP:
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case MLX5_CMD_OP_CREATE_SRQ:
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case MLX5_CMD_OP_CREATE_XRC_SRQ:
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case MLX5_CMD_OP_CREATE_DCT:
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case MLX5_CMD_OP_CREATE_XRQ:
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case MLX5_CMD_OP_ATTACH_TO_MCG:
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case MLX5_CMD_OP_ALLOC_XRCD:
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return true;
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case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
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{
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u16 op_mod = MLX5_GET(set_fte_in, in, op_mod);
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if (op_mod == 0)
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return true;
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return false;
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}
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default:
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return false;
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}
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}
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static bool devx_is_general_cmd(const void *in)
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{
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u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
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@ -95,7 +148,8 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(struct ib_device *ib_dev,
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{
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struct mlx5_ib_ucontext *c = devx_ufile2uctx(file);
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struct mlx5_ib_dev *dev = to_mdev(ib_dev);
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void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN);
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void *cmd_in = uverbs_attr_get_alloced_ptr(
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attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN);
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int cmd_out_len = uverbs_attr_get_len(attrs,
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MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT);
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void *cmd_out;
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@ -126,6 +180,256 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(struct ib_device *ib_dev,
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return err;
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}
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static void devx_obj_build_destroy_cmd(void *in, void *out, void *din,
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u32 *dinlen,
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u32 *obj_id)
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{
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u16 obj_type = MLX5_GET(general_obj_in_cmd_hdr, in, obj_type);
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u16 uid = MLX5_GET(general_obj_in_cmd_hdr, in, uid);
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*obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
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*dinlen = MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr);
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MLX5_SET(general_obj_in_cmd_hdr, din, obj_id, *obj_id);
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MLX5_SET(general_obj_in_cmd_hdr, din, uid, uid);
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switch (MLX5_GET(general_obj_in_cmd_hdr, in, opcode)) {
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case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
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MLX5_SET(general_obj_in_cmd_hdr, din, obj_type, obj_type);
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break;
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case MLX5_CMD_OP_CREATE_MKEY:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_MKEY);
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break;
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case MLX5_CMD_OP_CREATE_CQ:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_CQ);
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break;
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case MLX5_CMD_OP_ALLOC_PD:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_PD);
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break;
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case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
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break;
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case MLX5_CMD_OP_CREATE_RMP:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RMP);
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break;
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case MLX5_CMD_OP_CREATE_SQ:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SQ);
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break;
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case MLX5_CMD_OP_CREATE_RQ:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQ);
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break;
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case MLX5_CMD_OP_CREATE_RQT:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQT);
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break;
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case MLX5_CMD_OP_CREATE_TIR:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIR);
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break;
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case MLX5_CMD_OP_CREATE_TIS:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIS);
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break;
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case MLX5_CMD_OP_ALLOC_Q_COUNTER:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DEALLOC_Q_COUNTER);
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break;
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case MLX5_CMD_OP_CREATE_FLOW_TABLE:
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*dinlen = MLX5_ST_SZ_BYTES(destroy_flow_table_in);
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*obj_id = MLX5_GET(create_flow_table_out, out, table_id);
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MLX5_SET(destroy_flow_table_in, din, other_vport,
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MLX5_GET(create_flow_table_in, in, other_vport));
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MLX5_SET(destroy_flow_table_in, din, vport_number,
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MLX5_GET(create_flow_table_in, in, vport_number));
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MLX5_SET(destroy_flow_table_in, din, table_type,
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MLX5_GET(create_flow_table_in, in, table_type));
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MLX5_SET(destroy_flow_table_in, din, table_id, *obj_id);
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DESTROY_FLOW_TABLE);
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break;
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case MLX5_CMD_OP_CREATE_FLOW_GROUP:
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*dinlen = MLX5_ST_SZ_BYTES(destroy_flow_group_in);
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*obj_id = MLX5_GET(create_flow_group_out, out, group_id);
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MLX5_SET(destroy_flow_group_in, din, other_vport,
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MLX5_GET(create_flow_group_in, in, other_vport));
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MLX5_SET(destroy_flow_group_in, din, vport_number,
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MLX5_GET(create_flow_group_in, in, vport_number));
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MLX5_SET(destroy_flow_group_in, din, table_type,
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MLX5_GET(create_flow_group_in, in, table_type));
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MLX5_SET(destroy_flow_group_in, din, table_id,
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MLX5_GET(create_flow_group_in, in, table_id));
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MLX5_SET(destroy_flow_group_in, din, group_id, *obj_id);
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DESTROY_FLOW_GROUP);
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break;
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case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
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*dinlen = MLX5_ST_SZ_BYTES(delete_fte_in);
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*obj_id = MLX5_GET(set_fte_in, in, flow_index);
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MLX5_SET(delete_fte_in, din, other_vport,
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MLX5_GET(set_fte_in, in, other_vport));
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MLX5_SET(delete_fte_in, din, vport_number,
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MLX5_GET(set_fte_in, in, vport_number));
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MLX5_SET(delete_fte_in, din, table_type,
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MLX5_GET(set_fte_in, in, table_type));
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MLX5_SET(delete_fte_in, din, table_id,
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MLX5_GET(set_fte_in, in, table_id));
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MLX5_SET(delete_fte_in, din, flow_index, *obj_id);
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
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break;
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case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
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break;
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case MLX5_CMD_OP_ALLOC_ENCAP_HEADER:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DEALLOC_ENCAP_HEADER);
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break;
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case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
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break;
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case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
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*dinlen = MLX5_ST_SZ_BYTES(destroy_scheduling_element_in);
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*obj_id = MLX5_GET(create_scheduling_element_out, out,
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scheduling_element_id);
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MLX5_SET(destroy_scheduling_element_in, din,
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scheduling_hierarchy,
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MLX5_GET(create_scheduling_element_in, in,
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scheduling_hierarchy));
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MLX5_SET(destroy_scheduling_element_in, din,
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scheduling_element_id, *obj_id);
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DESTROY_SCHEDULING_ELEMENT);
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break;
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case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
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*dinlen = MLX5_ST_SZ_BYTES(delete_vxlan_udp_dport_in);
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*obj_id = MLX5_GET(add_vxlan_udp_dport_in, in, vxlan_udp_port);
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MLX5_SET(delete_vxlan_udp_dport_in, din, vxlan_udp_port, *obj_id);
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT);
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break;
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case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
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*dinlen = MLX5_ST_SZ_BYTES(delete_l2_table_entry_in);
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*obj_id = MLX5_GET(set_l2_table_entry_in, in, table_index);
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MLX5_SET(delete_l2_table_entry_in, din, table_index, *obj_id);
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
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break;
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case MLX5_CMD_OP_CREATE_QP:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_QP);
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break;
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case MLX5_CMD_OP_CREATE_SRQ:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SRQ);
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break;
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case MLX5_CMD_OP_CREATE_XRC_SRQ:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
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MLX5_CMD_OP_DESTROY_XRC_SRQ);
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break;
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case MLX5_CMD_OP_CREATE_DCT:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_DCT);
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break;
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case MLX5_CMD_OP_CREATE_XRQ:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_XRQ);
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break;
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case MLX5_CMD_OP_ATTACH_TO_MCG:
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*dinlen = MLX5_ST_SZ_BYTES(detach_from_mcg_in);
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MLX5_SET(detach_from_mcg_in, din, qpn,
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MLX5_GET(attach_to_mcg_in, in, qpn));
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memcpy(MLX5_ADDR_OF(detach_from_mcg_in, din, multicast_gid),
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MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid),
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MLX5_FLD_SZ_BYTES(attach_to_mcg_in, multicast_gid));
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
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break;
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case MLX5_CMD_OP_ALLOC_XRCD:
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MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_XRCD);
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break;
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default:
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/* The entry must match to one of the devx_is_obj_create_cmd */
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WARN_ON(true);
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break;
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}
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}
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static int devx_obj_cleanup(struct ib_uobject *uobject,
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enum rdma_remove_reason why)
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{
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u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
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struct devx_obj *obj = uobject->object;
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int ret;
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ret = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
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if (ret && why == RDMA_REMOVE_DESTROY)
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return ret;
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kfree(obj);
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return ret;
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}
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static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_DESTROY)(struct ib_device *ib_dev,
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struct ib_uverbs_file *file,
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struct uverbs_attr_bundle *attrs)
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{
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return 0;
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}
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static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(struct ib_device *ib_dev,
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struct ib_uverbs_file *file,
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struct uverbs_attr_bundle *attrs)
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{
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struct mlx5_ib_ucontext *c = devx_ufile2uctx(file);
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struct mlx5_ib_dev *dev = to_mdev(ib_dev);
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void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN);
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int cmd_out_len = uverbs_attr_get_len(attrs,
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MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT);
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void *cmd_out;
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struct ib_uobject *uobj;
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struct devx_obj *obj;
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int err;
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if (!c->devx_uid)
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return -EPERM;
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if (!devx_is_obj_create_cmd(cmd_in))
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return -EINVAL;
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obj = kzalloc(sizeof(struct devx_obj), GFP_KERNEL);
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if (!obj)
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return -ENOMEM;
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cmd_out = kvzalloc(cmd_out_len, GFP_KERNEL);
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if (!cmd_out) {
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err = -ENOMEM;
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goto obj_free;
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}
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MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, c->devx_uid);
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err = mlx5_cmd_exec(dev->mdev, cmd_in,
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uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN),
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cmd_out, cmd_out_len);
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if (err)
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goto cmd_free;
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uobj = uverbs_attr_get_uobject(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
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uobj->object = obj;
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obj->mdev = dev->mdev;
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devx_obj_build_destroy_cmd(cmd_in, cmd_out, obj->dinbox, &obj->dinlen, &obj->obj_id);
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WARN_ON(obj->dinlen > MLX5_MAX_DESTROY_INBOX_SIZE_DW * sizeof(u32));
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err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, cmd_out, cmd_out_len);
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if (err)
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goto cmd_free;
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kvfree(cmd_out);
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return 0;
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cmd_free:
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kvfree(cmd_out);
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obj_free:
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kfree(obj);
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return err;
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}
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static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OTHER,
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&UVERBS_ATTR_PTR_IN_SZ(MLX5_IB_ATTR_DEVX_OTHER_CMD_IN,
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UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
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@ -138,8 +442,35 @@ static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OTHER,
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UVERBS_ATTR_SPEC_F_MIN_SZ_OR_ZERO))
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);
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static DECLARE_UVERBS_NAMED_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE,
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&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,
|
||||
&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,
|
||||
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX));
|
||||
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX),
|
||||
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ));
|
||||
|
|
|
|||
|
|
@ -54,8 +54,24 @@ enum mlx5_ib_devx_other_attrs {
|
|||
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 {
|
||||
MLX5_IB_OBJECT_DEVX = (1U << UVERBS_ID_NS_SHIFT),
|
||||
MLX5_IB_OBJECT_DEVX_OBJ,
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in a new issue