mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 06:57:49 +07:00
186daf0c20
mlx5 updates for both net-next and rdma-next * 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux: (21 commits) net/mlx5: Expose DC scatter to CQE capability bit net/mlx5: Update mlx5_ifc with DEVX UID bits net/mlx5: Set uid as part of DCT commands net/mlx5: Set uid as part of SRQ commands net/mlx5: Set uid as part of SQ commands net/mlx5: Set uid as part of RQ commands net/mlx5: Set uid as part of QP commands net/mlx5: Set uid as part of CQ commands net/mlx5: Rename incorrect naming in IFC file net/mlx5: Export packet reformat alloc/dealloc functions net/mlx5: Pass a namespace for packet reformat ID allocation net/mlx5: Expose new packet reformat capabilities {net, RDMA}/mlx5: Rename encap to reformat packet net/mlx5: Move header encap type to IFC header file net/mlx5: Break encap/decap into two separated flow table creation flags net/mlx5: Add support for more namespaces when allocating modify header net/mlx5: Export modify header alloc/dealloc functions net/mlx5: Add proper NIC TX steering flow tables support net/mlx5: Cleanup flow namespace getter switch logic net/mlx5: Add memic command opcode to command checker ... Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
1335 lines
39 KiB
C
1335 lines
39 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
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/*
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* Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
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*/
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#include <rdma/ib_user_verbs.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/uverbs_types.h>
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#include <rdma/uverbs_ioctl.h>
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#include <rdma/mlx5_user_ioctl_cmds.h>
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#include <rdma/ib_umem.h>
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#include <linux/mlx5/driver.h>
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#include <linux/mlx5/fs.h>
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#include "mlx5_ib.h"
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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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u64 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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struct devx_umem {
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struct mlx5_core_dev *mdev;
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struct ib_umem *umem;
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u32 page_offset;
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int page_shift;
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int ncont;
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u32 dinlen;
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u32 dinbox[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)];
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};
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struct devx_umem_reg_cmd {
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void *in;
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u32 inlen;
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u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
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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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}
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int mlx5_ib_devx_create(struct mlx5_ib_dev *dev)
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{
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u32 in[MLX5_ST_SZ_DW(create_uctx_in)] = {0};
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u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
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u64 general_obj_types;
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void *hdr;
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int err;
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u16 uid;
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hdr = MLX5_ADDR_OF(create_uctx_in, in, hdr);
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general_obj_types = MLX5_CAP_GEN_64(dev->mdev, general_obj_types);
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if (!(general_obj_types & MLX5_GENERAL_OBJ_TYPES_CAP_UCTX) ||
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!(general_obj_types & MLX5_GENERAL_OBJ_TYPES_CAP_UMEM))
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return -EINVAL;
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MLX5_SET(general_obj_in_cmd_hdr, hdr, opcode, MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
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MLX5_SET(general_obj_in_cmd_hdr, hdr, obj_type, MLX5_OBJ_TYPE_UCTX);
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err = mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
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if (err)
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return err;
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uid = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
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return uid;
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}
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void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid)
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{
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u32 in[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)] = {0};
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u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
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MLX5_SET(general_obj_in_cmd_hdr, in, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
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MLX5_SET(general_obj_in_cmd_hdr, in, obj_type, MLX5_OBJ_TYPE_UCTX);
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MLX5_SET(general_obj_in_cmd_hdr, in, obj_id, uid);
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mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
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}
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bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type)
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{
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struct devx_obj *devx_obj = obj;
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u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
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switch (opcode) {
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case MLX5_CMD_OP_DESTROY_TIR:
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*dest_type = MLX5_FLOW_DESTINATION_TYPE_TIR;
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*dest_id = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox,
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obj_id);
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return true;
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case MLX5_CMD_OP_DESTROY_FLOW_TABLE:
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*dest_type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
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*dest_id = MLX5_GET(destroy_flow_table_in, devx_obj->dinbox,
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table_id);
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return true;
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default:
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return false;
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}
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}
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/*
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* As the obj_id in the firmware is not globally unique the object type
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* must be considered upon checking for a valid object id.
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* For that the opcode of the creator command is encoded as part of the obj_id.
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*/
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static u64 get_enc_obj_id(u16 opcode, u32 obj_id)
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{
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return ((u64)opcode << 32) | obj_id;
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}
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static int devx_is_valid_obj_id(struct devx_obj *obj, 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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u64 obj_id;
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switch (opcode) {
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case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT:
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case MLX5_CMD_OP_QUERY_GENERAL_OBJECT:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_GENERAL_OBJECT,
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MLX5_GET(general_obj_in_cmd_hdr, in,
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obj_id));
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break;
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case MLX5_CMD_OP_QUERY_MKEY:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_MKEY,
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MLX5_GET(query_mkey_in, in,
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mkey_index));
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break;
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case MLX5_CMD_OP_QUERY_CQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ,
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MLX5_GET(query_cq_in, in, cqn));
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break;
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case MLX5_CMD_OP_MODIFY_CQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ,
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MLX5_GET(modify_cq_in, in, cqn));
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break;
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case MLX5_CMD_OP_QUERY_SQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ,
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MLX5_GET(query_sq_in, in, sqn));
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break;
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case MLX5_CMD_OP_MODIFY_SQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ,
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MLX5_GET(modify_sq_in, in, sqn));
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break;
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case MLX5_CMD_OP_QUERY_RQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
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MLX5_GET(query_rq_in, in, rqn));
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break;
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case MLX5_CMD_OP_MODIFY_RQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
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MLX5_GET(modify_rq_in, in, rqn));
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break;
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case MLX5_CMD_OP_QUERY_RMP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RMP,
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MLX5_GET(query_rmp_in, in, rmpn));
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break;
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case MLX5_CMD_OP_MODIFY_RMP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RMP,
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MLX5_GET(modify_rmp_in, in, rmpn));
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break;
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case MLX5_CMD_OP_QUERY_RQT:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT,
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MLX5_GET(query_rqt_in, in, rqtn));
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break;
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case MLX5_CMD_OP_MODIFY_RQT:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT,
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MLX5_GET(modify_rqt_in, in, rqtn));
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break;
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case MLX5_CMD_OP_QUERY_TIR:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR,
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MLX5_GET(query_tir_in, in, tirn));
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break;
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case MLX5_CMD_OP_MODIFY_TIR:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR,
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MLX5_GET(modify_tir_in, in, tirn));
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break;
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case MLX5_CMD_OP_QUERY_TIS:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS,
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MLX5_GET(query_tis_in, in, tisn));
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break;
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case MLX5_CMD_OP_MODIFY_TIS:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS,
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MLX5_GET(modify_tis_in, in, tisn));
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break;
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case MLX5_CMD_OP_QUERY_FLOW_TABLE:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE,
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MLX5_GET(query_flow_table_in, in,
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table_id));
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break;
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case MLX5_CMD_OP_MODIFY_FLOW_TABLE:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE,
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MLX5_GET(modify_flow_table_in, in,
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table_id));
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break;
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case MLX5_CMD_OP_QUERY_FLOW_GROUP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_GROUP,
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MLX5_GET(query_flow_group_in, in,
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group_id));
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break;
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case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY,
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MLX5_GET(query_fte_in, in,
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flow_index));
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break;
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case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY,
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MLX5_GET(set_fte_in, in, flow_index));
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break;
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case MLX5_CMD_OP_QUERY_Q_COUNTER:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_Q_COUNTER,
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MLX5_GET(query_q_counter_in, in,
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counter_set_id));
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break;
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case MLX5_CMD_OP_QUERY_FLOW_COUNTER:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_FLOW_COUNTER,
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MLX5_GET(query_flow_counter_in, in,
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flow_counter_id));
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break;
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case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT,
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MLX5_GET(general_obj_in_cmd_hdr, in,
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obj_id));
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break;
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case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT,
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MLX5_GET(query_scheduling_element_in,
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in, scheduling_element_id));
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break;
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case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT,
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MLX5_GET(modify_scheduling_element_in,
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in, scheduling_element_id));
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break;
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case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT,
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MLX5_GET(add_vxlan_udp_dport_in, in,
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vxlan_udp_port));
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break;
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case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY,
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MLX5_GET(query_l2_table_entry_in, in,
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table_index));
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break;
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case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY,
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MLX5_GET(set_l2_table_entry_in, in,
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table_index));
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break;
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case MLX5_CMD_OP_QUERY_QP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
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MLX5_GET(query_qp_in, in, qpn));
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break;
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case MLX5_CMD_OP_RST2INIT_QP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
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MLX5_GET(rst2init_qp_in, in, qpn));
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break;
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case MLX5_CMD_OP_INIT2RTR_QP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
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MLX5_GET(init2rtr_qp_in, in, qpn));
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break;
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case MLX5_CMD_OP_RTR2RTS_QP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
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MLX5_GET(rtr2rts_qp_in, in, qpn));
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break;
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case MLX5_CMD_OP_RTS2RTS_QP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
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MLX5_GET(rts2rts_qp_in, in, qpn));
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break;
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case MLX5_CMD_OP_SQERR2RTS_QP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
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MLX5_GET(sqerr2rts_qp_in, in, qpn));
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break;
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case MLX5_CMD_OP_2ERR_QP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
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MLX5_GET(qp_2err_in, in, qpn));
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break;
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case MLX5_CMD_OP_2RST_QP:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
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MLX5_GET(qp_2rst_in, in, qpn));
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break;
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case MLX5_CMD_OP_QUERY_DCT:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT,
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MLX5_GET(query_dct_in, in, dctn));
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break;
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case MLX5_CMD_OP_QUERY_XRQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ,
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MLX5_GET(query_xrq_in, in, xrqn));
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break;
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case MLX5_CMD_OP_QUERY_XRC_SRQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ,
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MLX5_GET(query_xrc_srq_in, in,
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xrc_srqn));
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break;
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case MLX5_CMD_OP_ARM_XRC_SRQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ,
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MLX5_GET(arm_xrc_srq_in, in, xrc_srqn));
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break;
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case MLX5_CMD_OP_QUERY_SRQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SRQ,
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MLX5_GET(query_srq_in, in, srqn));
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break;
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case MLX5_CMD_OP_ARM_RQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
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MLX5_GET(arm_rq_in, in, srq_number));
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break;
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case MLX5_CMD_OP_DRAIN_DCT:
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case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT,
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MLX5_GET(drain_dct_in, in, dctn));
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break;
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case MLX5_CMD_OP_ARM_XRQ:
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obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ,
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MLX5_GET(arm_xrq_in, in, xrqn));
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break;
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default:
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return false;
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}
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if (obj_id == obj->obj_id)
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return true;
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return false;
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}
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static void devx_set_umem_valid(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_MKEY:
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MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1);
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break;
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case MLX5_CMD_OP_CREATE_CQ:
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{
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void *cqc;
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MLX5_SET(create_cq_in, in, cq_umem_valid, 1);
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cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
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MLX5_SET(cqc, cqc, dbr_umem_valid, 1);
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break;
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}
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case MLX5_CMD_OP_CREATE_QP:
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{
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void *qpc;
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qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
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MLX5_SET(qpc, qpc, dbr_umem_valid, 1);
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MLX5_SET(create_qp_in, in, wq_umem_valid, 1);
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break;
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}
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case MLX5_CMD_OP_CREATE_RQ:
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{
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void *rqc, *wq;
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rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
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wq = MLX5_ADDR_OF(rqc, rqc, wq);
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MLX5_SET(wq, wq, dbr_umem_valid, 1);
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MLX5_SET(wq, wq, wq_umem_valid, 1);
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break;
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}
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case MLX5_CMD_OP_CREATE_SQ:
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{
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void *sqc, *wq;
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sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
|
|
wq = MLX5_ADDR_OF(sqc, sqc, wq);
|
|
MLX5_SET(wq, wq, dbr_umem_valid, 1);
|
|
MLX5_SET(wq, wq, wq_umem_valid, 1);
|
|
break;
|
|
}
|
|
|
|
case MLX5_CMD_OP_MODIFY_CQ:
|
|
MLX5_SET(modify_cq_in, in, cq_umem_valid, 1);
|
|
break;
|
|
|
|
case MLX5_CMD_OP_CREATE_RMP:
|
|
{
|
|
void *rmpc, *wq;
|
|
|
|
rmpc = MLX5_ADDR_OF(create_rmp_in, in, ctx);
|
|
wq = MLX5_ADDR_OF(rmpc, rmpc, wq);
|
|
MLX5_SET(wq, wq, dbr_umem_valid, 1);
|
|
MLX5_SET(wq, wq, wq_umem_valid, 1);
|
|
break;
|
|
}
|
|
|
|
case MLX5_CMD_OP_CREATE_XRQ:
|
|
{
|
|
void *xrqc, *wq;
|
|
|
|
xrqc = MLX5_ADDR_OF(create_xrq_in, in, xrq_context);
|
|
wq = MLX5_ADDR_OF(xrqc, xrqc, wq);
|
|
MLX5_SET(wq, wq, dbr_umem_valid, 1);
|
|
MLX5_SET(wq, wq, wq_umem_valid, 1);
|
|
break;
|
|
}
|
|
|
|
case MLX5_CMD_OP_CREATE_XRC_SRQ:
|
|
{
|
|
void *xrc_srqc;
|
|
|
|
MLX5_SET(create_xrc_srq_in, in, xrc_srq_umem_valid, 1);
|
|
xrc_srqc = MLX5_ADDR_OF(create_xrc_srq_in, in,
|
|
xrc_srq_context_entry);
|
|
MLX5_SET(xrc_srqc, xrc_srqc, dbr_umem_valid, 1);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
static bool devx_is_obj_create_cmd(const void *in, u16 *opcode)
|
|
{
|
|
*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_PACKET_REFORMAT_CONTEXT:
|
|
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_obj_modify_cmd(const void *in)
|
|
{
|
|
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
|
|
|
|
switch (opcode) {
|
|
case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT:
|
|
case MLX5_CMD_OP_MODIFY_CQ:
|
|
case MLX5_CMD_OP_MODIFY_RMP:
|
|
case MLX5_CMD_OP_MODIFY_SQ:
|
|
case MLX5_CMD_OP_MODIFY_RQ:
|
|
case MLX5_CMD_OP_MODIFY_RQT:
|
|
case MLX5_CMD_OP_MODIFY_TIR:
|
|
case MLX5_CMD_OP_MODIFY_TIS:
|
|
case MLX5_CMD_OP_MODIFY_FLOW_TABLE:
|
|
case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT:
|
|
case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
|
|
case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
|
|
case MLX5_CMD_OP_RST2INIT_QP:
|
|
case MLX5_CMD_OP_INIT2RTR_QP:
|
|
case MLX5_CMD_OP_RTR2RTS_QP:
|
|
case MLX5_CMD_OP_RTS2RTS_QP:
|
|
case MLX5_CMD_OP_SQERR2RTS_QP:
|
|
case MLX5_CMD_OP_2ERR_QP:
|
|
case MLX5_CMD_OP_2RST_QP:
|
|
case MLX5_CMD_OP_ARM_XRC_SRQ:
|
|
case MLX5_CMD_OP_ARM_RQ:
|
|
case MLX5_CMD_OP_DRAIN_DCT:
|
|
case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION:
|
|
case MLX5_CMD_OP_ARM_XRQ:
|
|
return true;
|
|
case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
|
|
{
|
|
u16 op_mod = MLX5_GET(set_fte_in, in, op_mod);
|
|
|
|
if (op_mod == 1)
|
|
return true;
|
|
return false;
|
|
}
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static bool devx_is_obj_query_cmd(const void *in)
|
|
{
|
|
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
|
|
|
|
switch (opcode) {
|
|
case MLX5_CMD_OP_QUERY_GENERAL_OBJECT:
|
|
case MLX5_CMD_OP_QUERY_MKEY:
|
|
case MLX5_CMD_OP_QUERY_CQ:
|
|
case MLX5_CMD_OP_QUERY_RMP:
|
|
case MLX5_CMD_OP_QUERY_SQ:
|
|
case MLX5_CMD_OP_QUERY_RQ:
|
|
case MLX5_CMD_OP_QUERY_RQT:
|
|
case MLX5_CMD_OP_QUERY_TIR:
|
|
case MLX5_CMD_OP_QUERY_TIS:
|
|
case MLX5_CMD_OP_QUERY_Q_COUNTER:
|
|
case MLX5_CMD_OP_QUERY_FLOW_TABLE:
|
|
case MLX5_CMD_OP_QUERY_FLOW_GROUP:
|
|
case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY:
|
|
case MLX5_CMD_OP_QUERY_FLOW_COUNTER:
|
|
case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT:
|
|
case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT:
|
|
case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY:
|
|
case MLX5_CMD_OP_QUERY_QP:
|
|
case MLX5_CMD_OP_QUERY_SRQ:
|
|
case MLX5_CMD_OP_QUERY_XRC_SRQ:
|
|
case MLX5_CMD_OP_QUERY_DCT:
|
|
case MLX5_CMD_OP_QUERY_XRQ:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static bool devx_is_whitelist_cmd(void *in)
|
|
{
|
|
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
|
|
|
|
switch (opcode) {
|
|
case MLX5_CMD_OP_QUERY_HCA_CAP:
|
|
case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static int devx_get_uid(struct mlx5_ib_ucontext *c, void *cmd_in)
|
|
{
|
|
if (devx_is_whitelist_cmd(cmd_in)) {
|
|
struct mlx5_ib_dev *dev;
|
|
|
|
if (c->devx_uid)
|
|
return c->devx_uid;
|
|
|
|
dev = to_mdev(c->ibucontext.device);
|
|
if (dev->devx_whitelist_uid)
|
|
return dev->devx_whitelist_uid;
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (!c->devx_uid)
|
|
return -EINVAL;
|
|
|
|
if (!capable(CAP_NET_RAW))
|
|
return -EPERM;
|
|
|
|
return c->devx_uid;
|
|
}
|
|
static bool devx_is_general_cmd(void *in)
|
|
{
|
|
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
|
|
|
|
switch (opcode) {
|
|
case MLX5_CMD_OP_QUERY_HCA_CAP:
|
|
case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT:
|
|
case MLX5_CMD_OP_QUERY_VPORT_STATE:
|
|
case MLX5_CMD_OP_QUERY_ADAPTER:
|
|
case MLX5_CMD_OP_QUERY_ISSI:
|
|
case MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT:
|
|
case MLX5_CMD_OP_QUERY_ROCE_ADDRESS:
|
|
case MLX5_CMD_OP_QUERY_VNIC_ENV:
|
|
case MLX5_CMD_OP_QUERY_VPORT_COUNTER:
|
|
case MLX5_CMD_OP_GET_DROPPED_PACKET_LOG:
|
|
case MLX5_CMD_OP_NOP:
|
|
case MLX5_CMD_OP_QUERY_CONG_STATUS:
|
|
case MLX5_CMD_OP_QUERY_CONG_PARAMS:
|
|
case MLX5_CMD_OP_QUERY_CONG_STATISTICS:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_EQN)(
|
|
struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_ucontext *c;
|
|
struct mlx5_ib_dev *dev;
|
|
int user_vector;
|
|
int dev_eqn;
|
|
unsigned int irqn;
|
|
int err;
|
|
|
|
if (uverbs_copy_from(&user_vector, attrs,
|
|
MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC))
|
|
return -EFAULT;
|
|
|
|
c = devx_ufile2uctx(file);
|
|
if (IS_ERR(c))
|
|
return PTR_ERR(c);
|
|
dev = to_mdev(c->ibucontext.device);
|
|
|
|
err = mlx5_vector2eqn(dev->mdev, user_vector, &dev_eqn, &irqn);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN,
|
|
&dev_eqn, sizeof(dev_eqn)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
*Security note:
|
|
* The hardware protection mechanism works like this: Each device object that
|
|
* is subject to UAR doorbells (QP/SQ/CQ) gets a UAR ID (called uar_page in
|
|
* the device specification manual) upon its creation. Then upon doorbell,
|
|
* hardware fetches the object context for which the doorbell was rang, and
|
|
* validates that the UAR through which the DB was rang matches the UAR ID
|
|
* of the object.
|
|
* If no match the doorbell is silently ignored by the hardware. Of course,
|
|
* the user cannot ring a doorbell on a UAR that was not mapped to it.
|
|
* Now in devx, as the devx kernel does not manipulate the QP/SQ/CQ command
|
|
* mailboxes (except tagging them with UID), we expose to the user its UAR
|
|
* ID, so it can embed it in these objects in the expected specification
|
|
* format. So the only thing the user can do is hurt itself by creating a
|
|
* QP/SQ/CQ with a UAR ID other than his, and then in this case other users
|
|
* may ring a doorbell on its objects.
|
|
* The consequence of that will be that another user can schedule a QP/SQ
|
|
* of the buggy user for execution (just insert it to the hardware schedule
|
|
* queue or arm its CQ for event generation), no further harm is expected.
|
|
*/
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_UAR)(
|
|
struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_ucontext *c;
|
|
struct mlx5_ib_dev *dev;
|
|
u32 user_idx;
|
|
s32 dev_idx;
|
|
|
|
c = devx_ufile2uctx(file);
|
|
if (IS_ERR(c))
|
|
return PTR_ERR(c);
|
|
dev = to_mdev(c->ibucontext.device);
|
|
|
|
if (uverbs_copy_from(&user_idx, attrs,
|
|
MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX))
|
|
return -EFAULT;
|
|
|
|
dev_idx = bfregn_to_uar_index(dev, &c->bfregi, user_idx, true);
|
|
if (dev_idx < 0)
|
|
return dev_idx;
|
|
|
|
if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX,
|
|
&dev_idx, sizeof(dev_idx)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(
|
|
struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_ucontext *c;
|
|
struct mlx5_ib_dev *dev;
|
|
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,
|
|
MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT);
|
|
void *cmd_out;
|
|
int err;
|
|
int uid;
|
|
|
|
c = devx_ufile2uctx(file);
|
|
if (IS_ERR(c))
|
|
return PTR_ERR(c);
|
|
dev = to_mdev(c->ibucontext.device);
|
|
|
|
uid = devx_get_uid(c, cmd_in);
|
|
if (uid < 0)
|
|
return uid;
|
|
|
|
/* Only white list of some general HCA commands are allowed for this method. */
|
|
if (!devx_is_general_cmd(cmd_in))
|
|
return -EINVAL;
|
|
|
|
cmd_out = uverbs_zalloc(attrs, cmd_out_len);
|
|
if (IS_ERR(cmd_out))
|
|
return PTR_ERR(cmd_out);
|
|
|
|
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
|
|
err = mlx5_cmd_exec(dev->mdev, cmd_in,
|
|
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN),
|
|
cmd_out, cmd_out_len);
|
|
if (err)
|
|
return err;
|
|
|
|
return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, cmd_out,
|
|
cmd_out_len);
|
|
}
|
|
|
|
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_PACKET_REFORMAT_CONTEXT:
|
|
MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
|
|
MLX5_CMD_OP_DEALLOC_PACKET_REFORMAT_CONTEXT);
|
|
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 (ib_is_destroy_retryable(ret, why, uobject))
|
|
return ret;
|
|
|
|
kfree(obj);
|
|
return ret;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
|
|
struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
|
|
{
|
|
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 = uverbs_attr_get_uobject(
|
|
attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
|
|
struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
|
|
struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
|
|
u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
|
|
struct devx_obj *obj;
|
|
int err;
|
|
int uid;
|
|
u32 obj_id;
|
|
u16 opcode;
|
|
|
|
uid = devx_get_uid(c, cmd_in);
|
|
if (uid < 0)
|
|
return uid;
|
|
|
|
if (!devx_is_obj_create_cmd(cmd_in, &opcode))
|
|
return -EINVAL;
|
|
|
|
cmd_out = uverbs_zalloc(attrs, cmd_out_len);
|
|
if (IS_ERR(cmd_out))
|
|
return PTR_ERR(cmd_out);
|
|
|
|
obj = kzalloc(sizeof(struct devx_obj), GFP_KERNEL);
|
|
if (!obj)
|
|
return -ENOMEM;
|
|
|
|
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
|
|
devx_set_umem_valid(cmd_in);
|
|
|
|
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 obj_free;
|
|
|
|
uobj->object = obj;
|
|
obj->mdev = dev->mdev;
|
|
devx_obj_build_destroy_cmd(cmd_in, cmd_out, obj->dinbox, &obj->dinlen,
|
|
&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 obj_destroy;
|
|
|
|
obj->obj_id = get_enc_obj_id(opcode, obj_id);
|
|
return 0;
|
|
|
|
obj_destroy:
|
|
mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
|
|
obj_free:
|
|
kfree(obj);
|
|
return err;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)(
|
|
struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
|
|
{
|
|
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN);
|
|
int cmd_out_len = uverbs_attr_get_len(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT);
|
|
struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE);
|
|
struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
|
|
struct devx_obj *obj = uobj->object;
|
|
void *cmd_out;
|
|
int err;
|
|
int uid;
|
|
|
|
uid = devx_get_uid(c, cmd_in);
|
|
if (uid < 0)
|
|
return uid;
|
|
|
|
if (!devx_is_obj_modify_cmd(cmd_in))
|
|
return -EINVAL;
|
|
|
|
if (!devx_is_valid_obj_id(obj, cmd_in))
|
|
return -EINVAL;
|
|
|
|
cmd_out = uverbs_zalloc(attrs, cmd_out_len);
|
|
if (IS_ERR(cmd_out))
|
|
return PTR_ERR(cmd_out);
|
|
|
|
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
|
|
devx_set_umem_valid(cmd_in);
|
|
|
|
err = mlx5_cmd_exec(obj->mdev, cmd_in,
|
|
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN),
|
|
cmd_out, cmd_out_len);
|
|
if (err)
|
|
return err;
|
|
|
|
return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT,
|
|
cmd_out, cmd_out_len);
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)(
|
|
struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
|
|
{
|
|
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN);
|
|
int cmd_out_len = uverbs_attr_get_len(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT);
|
|
struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE);
|
|
struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
|
|
struct devx_obj *obj = uobj->object;
|
|
void *cmd_out;
|
|
int err;
|
|
int uid;
|
|
|
|
uid = devx_get_uid(c, cmd_in);
|
|
if (uid < 0)
|
|
return uid;
|
|
|
|
if (!devx_is_obj_query_cmd(cmd_in))
|
|
return -EINVAL;
|
|
|
|
if (!devx_is_valid_obj_id(obj, cmd_in))
|
|
return -EINVAL;
|
|
|
|
cmd_out = uverbs_zalloc(attrs, cmd_out_len);
|
|
if (IS_ERR(cmd_out))
|
|
return PTR_ERR(cmd_out);
|
|
|
|
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
|
|
err = mlx5_cmd_exec(obj->mdev, cmd_in,
|
|
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN),
|
|
cmd_out, cmd_out_len);
|
|
if (err)
|
|
return err;
|
|
|
|
return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT,
|
|
cmd_out, cmd_out_len);
|
|
}
|
|
|
|
static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext,
|
|
struct uverbs_attr_bundle *attrs,
|
|
struct devx_umem *obj)
|
|
{
|
|
u64 addr;
|
|
size_t size;
|
|
u32 access;
|
|
int npages;
|
|
int err;
|
|
u32 page_mask;
|
|
|
|
if (uverbs_copy_from(&addr, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR) ||
|
|
uverbs_copy_from(&size, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_LEN))
|
|
return -EFAULT;
|
|
|
|
err = uverbs_get_flags32(&access, attrs,
|
|
MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
|
|
IB_ACCESS_SUPPORTED);
|
|
if (err)
|
|
return err;
|
|
|
|
err = ib_check_mr_access(access);
|
|
if (err)
|
|
return err;
|
|
|
|
obj->umem = ib_umem_get(ucontext, addr, size, access, 0);
|
|
if (IS_ERR(obj->umem))
|
|
return PTR_ERR(obj->umem);
|
|
|
|
mlx5_ib_cont_pages(obj->umem, obj->umem->address,
|
|
MLX5_MKEY_PAGE_SHIFT_MASK, &npages,
|
|
&obj->page_shift, &obj->ncont, NULL);
|
|
|
|
if (!npages) {
|
|
ib_umem_release(obj->umem);
|
|
return -EINVAL;
|
|
}
|
|
|
|
page_mask = (1 << obj->page_shift) - 1;
|
|
obj->page_offset = obj->umem->address & page_mask;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int devx_umem_reg_cmd_alloc(struct uverbs_attr_bundle *attrs,
|
|
struct devx_umem *obj,
|
|
struct devx_umem_reg_cmd *cmd)
|
|
{
|
|
cmd->inlen = MLX5_ST_SZ_BYTES(create_umem_in) +
|
|
(MLX5_ST_SZ_BYTES(mtt) * obj->ncont);
|
|
cmd->in = uverbs_zalloc(attrs, cmd->inlen);
|
|
return PTR_ERR_OR_ZERO(cmd->in);
|
|
}
|
|
|
|
static void devx_umem_reg_cmd_build(struct mlx5_ib_dev *dev,
|
|
struct devx_umem *obj,
|
|
struct devx_umem_reg_cmd *cmd)
|
|
{
|
|
void *umem;
|
|
__be64 *mtt;
|
|
|
|
umem = MLX5_ADDR_OF(create_umem_in, cmd->in, umem);
|
|
mtt = (__be64 *)MLX5_ADDR_OF(umem, umem, mtt);
|
|
|
|
MLX5_SET(general_obj_in_cmd_hdr, cmd->in, opcode, MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
|
|
MLX5_SET(general_obj_in_cmd_hdr, cmd->in, obj_type, MLX5_OBJ_TYPE_UMEM);
|
|
MLX5_SET64(umem, umem, num_of_mtt, obj->ncont);
|
|
MLX5_SET(umem, umem, log_page_size, obj->page_shift -
|
|
MLX5_ADAPTER_PAGE_SHIFT);
|
|
MLX5_SET(umem, umem, page_offset, obj->page_offset);
|
|
mlx5_ib_populate_pas(dev, obj->umem, obj->page_shift, mtt,
|
|
(obj->umem->writable ? MLX5_IB_MTT_WRITE : 0) |
|
|
MLX5_IB_MTT_READ);
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_UMEM_REG)(
|
|
struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct devx_umem_reg_cmd cmd;
|
|
struct devx_umem *obj;
|
|
struct ib_uobject *uobj = uverbs_attr_get_uobject(
|
|
attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE);
|
|
u32 obj_id;
|
|
struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
|
|
struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
|
|
int err;
|
|
|
|
if (!c->devx_uid)
|
|
return -EINVAL;
|
|
|
|
if (!capable(CAP_NET_RAW))
|
|
return -EPERM;
|
|
|
|
obj = kzalloc(sizeof(struct devx_umem), GFP_KERNEL);
|
|
if (!obj)
|
|
return -ENOMEM;
|
|
|
|
err = devx_umem_get(dev, &c->ibucontext, attrs, obj);
|
|
if (err)
|
|
goto err_obj_free;
|
|
|
|
err = devx_umem_reg_cmd_alloc(attrs, obj, &cmd);
|
|
if (err)
|
|
goto err_umem_release;
|
|
|
|
devx_umem_reg_cmd_build(dev, obj, &cmd);
|
|
|
|
MLX5_SET(general_obj_in_cmd_hdr, cmd.in, uid, c->devx_uid);
|
|
err = mlx5_cmd_exec(dev->mdev, cmd.in, cmd.inlen, cmd.out,
|
|
sizeof(cmd.out));
|
|
if (err)
|
|
goto err_umem_release;
|
|
|
|
obj->mdev = dev->mdev;
|
|
uobj->object = obj;
|
|
devx_obj_build_destroy_cmd(cmd.in, cmd.out, obj->dinbox, &obj->dinlen, &obj_id);
|
|
err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, &obj_id, sizeof(obj_id));
|
|
if (err)
|
|
goto err_umem_destroy;
|
|
|
|
return 0;
|
|
|
|
err_umem_destroy:
|
|
mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, cmd.out, sizeof(cmd.out));
|
|
err_umem_release:
|
|
ib_umem_release(obj->umem);
|
|
err_obj_free:
|
|
kfree(obj);
|
|
return err;
|
|
}
|
|
|
|
static int devx_umem_cleanup(struct ib_uobject *uobject,
|
|
enum rdma_remove_reason why)
|
|
{
|
|
struct devx_umem *obj = uobject->object;
|
|
u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
|
|
int err;
|
|
|
|
err = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
|
|
if (ib_is_destroy_retryable(err, why, uobject))
|
|
return err;
|
|
|
|
ib_umem_release(obj->umem);
|
|
kfree(obj);
|
|
return 0;
|
|
}
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_UMEM_REG,
|
|
UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE,
|
|
MLX5_IB_OBJECT_DEVX_UMEM,
|
|
UVERBS_ACCESS_NEW,
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR,
|
|
UVERBS_ATTR_TYPE(u64),
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_LEN,
|
|
UVERBS_ATTR_TYPE(u64),
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
|
|
enum ib_access_flags),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID,
|
|
UVERBS_ATTR_TYPE(u32),
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
|
|
MLX5_IB_METHOD_DEVX_UMEM_DEREG,
|
|
UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_DEREG_HANDLE,
|
|
MLX5_IB_OBJECT_DEVX_UMEM,
|
|
UVERBS_ACCESS_DESTROY,
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_QUERY_EQN,
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC,
|
|
UVERBS_ATTR_TYPE(u32),
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN,
|
|
UVERBS_ATTR_TYPE(u32),
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_QUERY_UAR,
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX,
|
|
UVERBS_ATTR_TYPE(u32),
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX,
|
|
UVERBS_ATTR_TYPE(u32),
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_OTHER,
|
|
UVERBS_ATTR_PTR_IN(
|
|
MLX5_IB_ATTR_DEVX_OTHER_CMD_IN,
|
|
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
|
|
UA_MANDATORY,
|
|
UA_ALLOC_AND_COPY),
|
|
UVERBS_ATTR_PTR_OUT(
|
|
MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT,
|
|
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
|
|
UA_MANDATORY));
|
|
|
|
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_MANDATORY),
|
|
UVERBS_ATTR_PTR_IN(
|
|
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN,
|
|
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
|
|
UA_MANDATORY,
|
|
UA_ALLOC_AND_COPY),
|
|
UVERBS_ATTR_PTR_OUT(
|
|
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT,
|
|
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
|
|
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_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_OBJ_MODIFY,
|
|
UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE,
|
|
MLX5_IB_OBJECT_DEVX_OBJ,
|
|
UVERBS_ACCESS_WRITE,
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_IN(
|
|
MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN,
|
|
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
|
|
UA_MANDATORY,
|
|
UA_ALLOC_AND_COPY),
|
|
UVERBS_ATTR_PTR_OUT(
|
|
MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT,
|
|
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_OBJ_QUERY,
|
|
UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE,
|
|
MLX5_IB_OBJECT_DEVX_OBJ,
|
|
UVERBS_ACCESS_READ,
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_IN(
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN,
|
|
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
|
|
UA_MANDATORY,
|
|
UA_ALLOC_AND_COPY),
|
|
UVERBS_ATTR_PTR_OUT(
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT,
|
|
UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX,
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN));
|
|
|
|
DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ,
|
|
UVERBS_TYPE_ALLOC_IDR(devx_obj_cleanup),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_MODIFY),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY));
|
|
|
|
DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM,
|
|
UVERBS_TYPE_ALLOC_IDR(devx_umem_cleanup),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_REG),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_DEREG));
|
|
|
|
DECLARE_UVERBS_OBJECT_TREE(devx_objects,
|
|
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX),
|
|
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ),
|
|
&UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM));
|
|
|
|
const struct uverbs_object_tree_def *mlx5_ib_get_devx_tree(void)
|
|
{
|
|
return &devx_objects;
|
|
}
|