3102 lines
86 KiB
C
3102 lines
86 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/mlx5_user_ioctl_verbs.h>
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#include <rdma/ib_umem.h>
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#include <rdma/uverbs_std_types.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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#include "devx.h"
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#include "qp.h"
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#include <linux/xarray.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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static void dispatch_event_fd(struct list_head *fd_list, const void *data);
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enum devx_obj_flags {
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DEVX_OBJ_FLAGS_INDIRECT_MKEY = 1 << 0,
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DEVX_OBJ_FLAGS_DCT = 1 << 1,
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DEVX_OBJ_FLAGS_CQ = 1 << 2,
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};
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struct devx_async_data {
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struct mlx5_ib_dev *mdev;
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struct list_head list;
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struct devx_async_cmd_event_file *ev_file;
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struct mlx5_async_work cb_work;
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u16 cmd_out_len;
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/* must be last field in this structure */
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struct mlx5_ib_uapi_devx_async_cmd_hdr hdr;
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};
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struct devx_async_event_data {
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struct list_head list; /* headed in ev_file->event_list */
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struct mlx5_ib_uapi_devx_async_event_hdr hdr;
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};
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/* first level XA value data structure */
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struct devx_event {
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struct xarray object_ids; /* second XA level, Key = object id */
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struct list_head unaffiliated_list;
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};
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/* second level XA value data structure */
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struct devx_obj_event {
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struct rcu_head rcu;
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struct list_head obj_sub_list;
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};
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struct devx_event_subscription {
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struct list_head file_list; /* headed in ev_file->
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* subscribed_events_list
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*/
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struct list_head xa_list; /* headed in devx_event->unaffiliated_list or
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* devx_obj_event->obj_sub_list
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*/
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struct list_head obj_list; /* headed in devx_object */
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struct list_head event_list; /* headed in ev_file->event_list or in
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* temp list via subscription
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*/
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u8 is_cleaned:1;
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u32 xa_key_level1;
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u32 xa_key_level2;
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struct rcu_head rcu;
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u64 cookie;
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struct devx_async_event_file *ev_file;
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struct eventfd_ctx *eventfd;
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};
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struct devx_async_event_file {
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struct ib_uobject uobj;
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/* Head of events that are subscribed to this FD */
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struct list_head subscribed_events_list;
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spinlock_t lock;
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wait_queue_head_t poll_wait;
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struct list_head event_list;
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struct mlx5_ib_dev *dev;
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u8 omit_data:1;
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u8 is_overflow_err:1;
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u8 is_destroyed:1;
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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 dinlen;
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u32 dinbox[MLX5_ST_SZ_DW(destroy_umem_in)];
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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(create_umem_out)];
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};
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static struct mlx5_ib_ucontext *
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devx_ufile2uctx(const struct uverbs_attr_bundle *attrs)
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{
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return to_mucontext(ib_uverbs_get_ucontext(attrs));
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}
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int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user)
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{
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u32 in[MLX5_ST_SZ_DW(create_uctx_in)] = {};
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u32 out[MLX5_ST_SZ_DW(create_uctx_out)] = {};
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void *uctx;
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int err;
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u16 uid;
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u32 cap = 0;
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/* 0 means not supported */
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if (!MLX5_CAP_GEN(dev->mdev, log_max_uctx))
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return -EINVAL;
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uctx = MLX5_ADDR_OF(create_uctx_in, in, uctx);
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if (is_user && capable(CAP_NET_RAW) &&
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(MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RAW_TX))
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cap |= MLX5_UCTX_CAP_RAW_TX;
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if (is_user && capable(CAP_SYS_RAWIO) &&
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(MLX5_CAP_GEN(dev->mdev, uctx_cap) &
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MLX5_UCTX_CAP_INTERNAL_DEV_RES))
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cap |= MLX5_UCTX_CAP_INTERNAL_DEV_RES;
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MLX5_SET(create_uctx_in, in, opcode, MLX5_CMD_OP_CREATE_UCTX);
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MLX5_SET(uctx, uctx, cap, cap);
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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(create_uctx_out, out, uid);
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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(destroy_uctx_in)] = {};
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u32 out[MLX5_ST_SZ_DW(destroy_uctx_out)] = {};
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MLX5_SET(destroy_uctx_in, in, opcode, MLX5_CMD_OP_DESTROY_UCTX);
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MLX5_SET(destroy_uctx_in, in, uid, uid);
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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 is_legacy_unaffiliated_event_num(u16 event_num)
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{
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switch (event_num) {
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case MLX5_EVENT_TYPE_PORT_CHANGE:
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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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static bool is_legacy_obj_event_num(u16 event_num)
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{
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switch (event_num) {
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case MLX5_EVENT_TYPE_PATH_MIG:
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case MLX5_EVENT_TYPE_COMM_EST:
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case MLX5_EVENT_TYPE_SQ_DRAINED:
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case MLX5_EVENT_TYPE_SRQ_LAST_WQE:
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case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT:
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case MLX5_EVENT_TYPE_CQ_ERROR:
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case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
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case MLX5_EVENT_TYPE_PATH_MIG_FAILED:
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case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
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case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR:
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case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR:
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case MLX5_EVENT_TYPE_DCT_DRAINED:
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case MLX5_EVENT_TYPE_COMP:
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case MLX5_EVENT_TYPE_DCT_KEY_VIOLATION:
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case MLX5_EVENT_TYPE_XRQ_ERROR:
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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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static u16 get_legacy_obj_type(u16 opcode)
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{
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switch (opcode) {
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case MLX5_CMD_OP_CREATE_RQ:
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return MLX5_EVENT_QUEUE_TYPE_RQ;
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case MLX5_CMD_OP_CREATE_QP:
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return MLX5_EVENT_QUEUE_TYPE_QP;
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case MLX5_CMD_OP_CREATE_SQ:
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return MLX5_EVENT_QUEUE_TYPE_SQ;
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case MLX5_CMD_OP_CREATE_DCT:
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return MLX5_EVENT_QUEUE_TYPE_DCT;
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default:
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return 0;
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}
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}
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static u16 get_dec_obj_type(struct devx_obj *obj, u16 event_num)
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{
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u16 opcode;
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opcode = (obj->obj_id >> 32) & 0xffff;
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if (is_legacy_obj_event_num(event_num))
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return get_legacy_obj_type(opcode);
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switch (opcode) {
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case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
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return (obj->obj_id >> 48);
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case MLX5_CMD_OP_CREATE_RQ:
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return MLX5_OBJ_TYPE_RQ;
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case MLX5_CMD_OP_CREATE_QP:
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return MLX5_OBJ_TYPE_QP;
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case MLX5_CMD_OP_CREATE_SQ:
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return MLX5_OBJ_TYPE_SQ;
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case MLX5_CMD_OP_CREATE_DCT:
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return MLX5_OBJ_TYPE_DCT;
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case MLX5_CMD_OP_CREATE_TIR:
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return MLX5_OBJ_TYPE_TIR;
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case MLX5_CMD_OP_CREATE_TIS:
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return MLX5_OBJ_TYPE_TIS;
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case MLX5_CMD_OP_CREATE_PSV:
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return MLX5_OBJ_TYPE_PSV;
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case MLX5_OBJ_TYPE_MKEY:
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return MLX5_OBJ_TYPE_MKEY;
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case MLX5_CMD_OP_CREATE_RMP:
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return MLX5_OBJ_TYPE_RMP;
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case MLX5_CMD_OP_CREATE_XRC_SRQ:
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return MLX5_OBJ_TYPE_XRC_SRQ;
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case MLX5_CMD_OP_CREATE_XRQ:
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return MLX5_OBJ_TYPE_XRQ;
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case MLX5_CMD_OP_CREATE_RQT:
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return MLX5_OBJ_TYPE_RQT;
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case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
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return MLX5_OBJ_TYPE_FLOW_COUNTER;
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case MLX5_CMD_OP_CREATE_CQ:
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return MLX5_OBJ_TYPE_CQ;
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default:
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return 0;
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}
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}
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static u16 get_event_obj_type(unsigned long event_type, struct mlx5_eqe *eqe)
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{
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switch (event_type) {
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case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
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case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR:
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case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
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case MLX5_EVENT_TYPE_SRQ_LAST_WQE:
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case MLX5_EVENT_TYPE_PATH_MIG:
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case MLX5_EVENT_TYPE_PATH_MIG_FAILED:
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case MLX5_EVENT_TYPE_COMM_EST:
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case MLX5_EVENT_TYPE_SQ_DRAINED:
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case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT:
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case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR:
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return eqe->data.qp_srq.type;
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case MLX5_EVENT_TYPE_CQ_ERROR:
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case MLX5_EVENT_TYPE_XRQ_ERROR:
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return 0;
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case MLX5_EVENT_TYPE_DCT_DRAINED:
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case MLX5_EVENT_TYPE_DCT_KEY_VIOLATION:
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return MLX5_EVENT_QUEUE_TYPE_DCT;
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default:
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return MLX5_GET(affiliated_event_header, &eqe->data, obj_type);
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}
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}
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static u32 get_dec_obj_id(u64 obj_id)
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{
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return (obj_id & 0xffffffff);
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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(u32 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 u32 devx_get_created_obj_id(const void *in, const void *out, u16 opcode)
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{
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switch (opcode) {
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case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
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return MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
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case MLX5_CMD_OP_CREATE_UMEM:
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return MLX5_GET(create_umem_out, out, umem_id);
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case MLX5_CMD_OP_CREATE_MKEY:
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return MLX5_GET(create_mkey_out, out, mkey_index);
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case MLX5_CMD_OP_CREATE_CQ:
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return MLX5_GET(create_cq_out, out, cqn);
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case MLX5_CMD_OP_ALLOC_PD:
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return MLX5_GET(alloc_pd_out, out, pd);
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case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
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return MLX5_GET(alloc_transport_domain_out, out,
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transport_domain);
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case MLX5_CMD_OP_CREATE_RMP:
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return MLX5_GET(create_rmp_out, out, rmpn);
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case MLX5_CMD_OP_CREATE_SQ:
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return MLX5_GET(create_sq_out, out, sqn);
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case MLX5_CMD_OP_CREATE_RQ:
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return MLX5_GET(create_rq_out, out, rqn);
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case MLX5_CMD_OP_CREATE_RQT:
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return MLX5_GET(create_rqt_out, out, rqtn);
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case MLX5_CMD_OP_CREATE_TIR:
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return MLX5_GET(create_tir_out, out, tirn);
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case MLX5_CMD_OP_CREATE_TIS:
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return MLX5_GET(create_tis_out, out, tisn);
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case MLX5_CMD_OP_ALLOC_Q_COUNTER:
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return MLX5_GET(alloc_q_counter_out, out, counter_set_id);
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case MLX5_CMD_OP_CREATE_FLOW_TABLE:
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return MLX5_GET(create_flow_table_out, out, table_id);
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case MLX5_CMD_OP_CREATE_FLOW_GROUP:
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return MLX5_GET(create_flow_group_out, out, group_id);
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case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
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return MLX5_GET(set_fte_in, in, flow_index);
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case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
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return MLX5_GET(alloc_flow_counter_out, out, flow_counter_id);
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case MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT:
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return MLX5_GET(alloc_packet_reformat_context_out, out,
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packet_reformat_id);
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case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
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return MLX5_GET(alloc_modify_header_context_out, out,
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modify_header_id);
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case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
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return MLX5_GET(create_scheduling_element_out, out,
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scheduling_element_id);
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case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
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return MLX5_GET(add_vxlan_udp_dport_in, in, vxlan_udp_port);
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case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
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return MLX5_GET(set_l2_table_entry_in, in, table_index);
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case MLX5_CMD_OP_CREATE_QP:
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return MLX5_GET(create_qp_out, out, qpn);
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case MLX5_CMD_OP_CREATE_SRQ:
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return MLX5_GET(create_srq_out, out, srqn);
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case MLX5_CMD_OP_CREATE_XRC_SRQ:
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return MLX5_GET(create_xrc_srq_out, out, xrc_srqn);
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case MLX5_CMD_OP_CREATE_DCT:
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return MLX5_GET(create_dct_out, out, dctn);
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case MLX5_CMD_OP_CREATE_XRQ:
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return MLX5_GET(create_xrq_out, out, xrqn);
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case MLX5_CMD_OP_ATTACH_TO_MCG:
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return MLX5_GET(attach_to_mcg_in, in, qpn);
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case MLX5_CMD_OP_ALLOC_XRCD:
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return MLX5_GET(alloc_xrcd_out, out, xrcd);
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case MLX5_CMD_OP_CREATE_PSV:
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return MLX5_GET(create_psv_out, out, psv0_index);
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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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return 0;
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}
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}
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static u64 devx_get_obj_id(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_type) << 16,
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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:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT,
|
|
MLX5_GET(modify_rqt_in, in, rqtn));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_TIR:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR,
|
|
MLX5_GET(query_tir_in, in, tirn));
|
|
break;
|
|
case MLX5_CMD_OP_MODIFY_TIR:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR,
|
|
MLX5_GET(modify_tir_in, in, tirn));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_TIS:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS,
|
|
MLX5_GET(query_tis_in, in, tisn));
|
|
break;
|
|
case MLX5_CMD_OP_MODIFY_TIS:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS,
|
|
MLX5_GET(modify_tis_in, in, tisn));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_FLOW_TABLE:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE,
|
|
MLX5_GET(query_flow_table_in, in,
|
|
table_id));
|
|
break;
|
|
case MLX5_CMD_OP_MODIFY_FLOW_TABLE:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE,
|
|
MLX5_GET(modify_flow_table_in, in,
|
|
table_id));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_FLOW_GROUP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_GROUP,
|
|
MLX5_GET(query_flow_group_in, in,
|
|
group_id));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY,
|
|
MLX5_GET(query_fte_in, in,
|
|
flow_index));
|
|
break;
|
|
case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY,
|
|
MLX5_GET(set_fte_in, in, flow_index));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_Q_COUNTER:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_Q_COUNTER,
|
|
MLX5_GET(query_q_counter_in, in,
|
|
counter_set_id));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_FLOW_COUNTER:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_FLOW_COUNTER,
|
|
MLX5_GET(query_flow_counter_in, in,
|
|
flow_counter_id));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT,
|
|
MLX5_GET(query_modify_header_context_in,
|
|
in, modify_header_id));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT,
|
|
MLX5_GET(query_scheduling_element_in,
|
|
in, scheduling_element_id));
|
|
break;
|
|
case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT,
|
|
MLX5_GET(modify_scheduling_element_in,
|
|
in, scheduling_element_id));
|
|
break;
|
|
case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT,
|
|
MLX5_GET(add_vxlan_udp_dport_in, in,
|
|
vxlan_udp_port));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY,
|
|
MLX5_GET(query_l2_table_entry_in, in,
|
|
table_index));
|
|
break;
|
|
case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY,
|
|
MLX5_GET(set_l2_table_entry_in, in,
|
|
table_index));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(query_qp_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_RST2INIT_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(rst2init_qp_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_INIT2INIT_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(init2init_qp_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_INIT2RTR_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(init2rtr_qp_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_RTR2RTS_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(rtr2rts_qp_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_RTS2RTS_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(rts2rts_qp_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_SQERR2RTS_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(sqerr2rts_qp_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_2ERR_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(qp_2err_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_2RST_QP:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
MLX5_GET(qp_2rst_in, in, qpn));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_DCT:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT,
|
|
MLX5_GET(query_dct_in, in, dctn));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_XRQ:
|
|
case MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY:
|
|
case MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ,
|
|
MLX5_GET(query_xrq_in, in, xrqn));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_XRC_SRQ:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ,
|
|
MLX5_GET(query_xrc_srq_in, in,
|
|
xrc_srqn));
|
|
break;
|
|
case MLX5_CMD_OP_ARM_XRC_SRQ:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ,
|
|
MLX5_GET(arm_xrc_srq_in, in, xrc_srqn));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_SRQ:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SRQ,
|
|
MLX5_GET(query_srq_in, in, srqn));
|
|
break;
|
|
case MLX5_CMD_OP_ARM_RQ:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
|
|
MLX5_GET(arm_rq_in, in, srq_number));
|
|
break;
|
|
case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT,
|
|
MLX5_GET(drain_dct_in, in, dctn));
|
|
break;
|
|
case MLX5_CMD_OP_ARM_XRQ:
|
|
case MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY:
|
|
case MLX5_CMD_OP_RELEASE_XRQ_ERROR:
|
|
case MLX5_CMD_OP_MODIFY_XRQ:
|
|
obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ,
|
|
MLX5_GET(arm_xrq_in, in, xrqn));
|
|
break;
|
|
case MLX5_CMD_OP_QUERY_PACKET_REFORMAT_CONTEXT:
|
|
obj_id = get_enc_obj_id
|
|
(MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT,
|
|
MLX5_GET(query_packet_reformat_context_in,
|
|
in, packet_reformat_id));
|
|
break;
|
|
default:
|
|
obj_id = 0;
|
|
}
|
|
|
|
return obj_id;
|
|
}
|
|
|
|
static bool devx_is_valid_obj_id(struct uverbs_attr_bundle *attrs,
|
|
struct ib_uobject *uobj, const void *in)
|
|
{
|
|
struct mlx5_ib_dev *dev = mlx5_udata_to_mdev(&attrs->driver_udata);
|
|
u64 obj_id = devx_get_obj_id(in);
|
|
|
|
if (!obj_id)
|
|
return false;
|
|
|
|
switch (uobj_get_object_id(uobj)) {
|
|
case UVERBS_OBJECT_CQ:
|
|
return get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ,
|
|
to_mcq(uobj->object)->mcq.cqn) ==
|
|
obj_id;
|
|
|
|
case UVERBS_OBJECT_SRQ:
|
|
{
|
|
struct mlx5_core_srq *srq = &(to_msrq(uobj->object)->msrq);
|
|
u16 opcode;
|
|
|
|
switch (srq->common.res) {
|
|
case MLX5_RES_XSRQ:
|
|
opcode = MLX5_CMD_OP_CREATE_XRC_SRQ;
|
|
break;
|
|
case MLX5_RES_XRQ:
|
|
opcode = MLX5_CMD_OP_CREATE_XRQ;
|
|
break;
|
|
default:
|
|
if (!dev->mdev->issi)
|
|
opcode = MLX5_CMD_OP_CREATE_SRQ;
|
|
else
|
|
opcode = MLX5_CMD_OP_CREATE_RMP;
|
|
}
|
|
|
|
return get_enc_obj_id(opcode,
|
|
to_msrq(uobj->object)->msrq.srqn) ==
|
|
obj_id;
|
|
}
|
|
|
|
case UVERBS_OBJECT_QP:
|
|
{
|
|
struct mlx5_ib_qp *qp = to_mqp(uobj->object);
|
|
|
|
if (qp->type == IB_QPT_RAW_PACKET ||
|
|
(qp->flags & IB_QP_CREATE_SOURCE_QPN)) {
|
|
struct mlx5_ib_raw_packet_qp *raw_packet_qp =
|
|
&qp->raw_packet_qp;
|
|
struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
|
|
struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
|
|
|
|
return (get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
|
|
rq->base.mqp.qpn) == obj_id ||
|
|
get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ,
|
|
sq->base.mqp.qpn) == obj_id ||
|
|
get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR,
|
|
rq->tirn) == obj_id ||
|
|
get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS,
|
|
sq->tisn) == obj_id);
|
|
}
|
|
|
|
if (qp->type == MLX5_IB_QPT_DCT)
|
|
return get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT,
|
|
qp->dct.mdct.mqp.qpn) == obj_id;
|
|
return get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
|
|
qp->ibqp.qp_num) == obj_id;
|
|
}
|
|
|
|
case UVERBS_OBJECT_WQ:
|
|
return get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ,
|
|
to_mrwq(uobj->object)->core_qp.qpn) ==
|
|
obj_id;
|
|
|
|
case UVERBS_OBJECT_RWQ_IND_TBL:
|
|
return get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT,
|
|
to_mrwq_ind_table(uobj->object)->rqtn) ==
|
|
obj_id;
|
|
|
|
case MLX5_IB_OBJECT_DEVX_OBJ:
|
|
{
|
|
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
|
|
struct devx_obj *devx_uobj = uobj->object;
|
|
|
|
if (opcode == MLX5_CMD_OP_QUERY_FLOW_COUNTER &&
|
|
devx_uobj->flow_counter_bulk_size) {
|
|
u64 end;
|
|
|
|
end = devx_uobj->obj_id +
|
|
devx_uobj->flow_counter_bulk_size;
|
|
return devx_uobj->obj_id <= obj_id && end > obj_id;
|
|
}
|
|
|
|
return devx_uobj->obj_id == obj_id;
|
|
}
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static void devx_set_umem_valid(const void *in)
|
|
{
|
|
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
|
|
|
|
switch (opcode) {
|
|
case MLX5_CMD_OP_CREATE_MKEY:
|
|
MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_CQ:
|
|
{
|
|
void *cqc;
|
|
|
|
MLX5_SET(create_cq_in, in, cq_umem_valid, 1);
|
|
cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
|
|
MLX5_SET(cqc, cqc, dbr_umem_valid, 1);
|
|
break;
|
|
}
|
|
case MLX5_CMD_OP_CREATE_QP:
|
|
{
|
|
void *qpc;
|
|
|
|
qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
|
|
MLX5_SET(qpc, qpc, dbr_umem_valid, 1);
|
|
MLX5_SET(create_qp_in, in, wq_umem_valid, 1);
|
|
break;
|
|
}
|
|
|
|
case MLX5_CMD_OP_CREATE_RQ:
|
|
{
|
|
void *rqc, *wq;
|
|
|
|
rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
|
|
wq = MLX5_ADDR_OF(rqc, rqc, wq);
|
|
MLX5_SET(wq, wq, dbr_umem_valid, 1);
|
|
MLX5_SET(wq, wq, wq_umem_valid, 1);
|
|
break;
|
|
}
|
|
|
|
case MLX5_CMD_OP_CREATE_SQ:
|
|
{
|
|
void *sqc, *wq;
|
|
|
|
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;
|
|
}
|
|
case MLX5_CMD_OP_CREATE_PSV:
|
|
{
|
|
u8 num_psv = MLX5_GET(create_psv_in, in, num_psv);
|
|
|
|
if (num_psv == 1)
|
|
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_INIT2INIT_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_ARM_DCT_FOR_KEY_VIOLATION:
|
|
case MLX5_CMD_OP_ARM_XRQ:
|
|
case MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY:
|
|
case MLX5_CMD_OP_RELEASE_XRQ_ERROR:
|
|
case MLX5_CMD_OP_MODIFY_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:
|
|
case MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY:
|
|
case MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS:
|
|
case MLX5_CMD_OP_QUERY_PACKET_REFORMAT_CONTEXT:
|
|
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:
|
|
case MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT:
|
|
case MLX5_CMD_OP_QUERY_ESW_FUNCTIONS:
|
|
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;
|
|
|
|
return c->devx_uid;
|
|
}
|
|
|
|
static bool devx_is_general_cmd(void *in, struct mlx5_ib_dev *dev)
|
|
{
|
|
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
|
|
|
|
/* Pass all cmds for vhca_tunnel as general, tracking is done in FW */
|
|
if ((MLX5_CAP_GEN_64(dev->mdev, vhca_tunnel_commands) &&
|
|
MLX5_GET(general_obj_in_cmd_hdr, in, vhca_tunnel_id)) ||
|
|
(opcode >= MLX5_CMD_OP_GENERAL_START &&
|
|
opcode < MLX5_CMD_OP_GENERAL_END))
|
|
return true;
|
|
|
|
switch (opcode) {
|
|
case MLX5_CMD_OP_QUERY_HCA_CAP:
|
|
case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT:
|
|
case MLX5_CMD_OP_QUERY_ESW_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:
|
|
case MLX5_CMD_OP_QUERY_LAG:
|
|
case MLX5_CMD_OP_QUERY_ESW_FUNCTIONS:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_EQN)(
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_ucontext *c;
|
|
struct mlx5_ib_dev *dev;
|
|
int user_vector;
|
|
int dev_eqn;
|
|
int err;
|
|
|
|
if (uverbs_copy_from(&user_vector, attrs,
|
|
MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC))
|
|
return -EFAULT;
|
|
|
|
c = devx_ufile2uctx(attrs);
|
|
if (IS_ERR(c))
|
|
return PTR_ERR(c);
|
|
dev = to_mdev(c->ibucontext.device);
|
|
|
|
err = mlx5_vector2eqn(dev->mdev, user_vector, &dev_eqn);
|
|
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 uverbs_attr_bundle *attrs)
|
|
{
|
|
struct mlx5_ib_ucontext *c;
|
|
struct mlx5_ib_dev *dev;
|
|
u32 user_idx;
|
|
s32 dev_idx;
|
|
|
|
c = devx_ufile2uctx(attrs);
|
|
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 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, err2;
|
|
int uid;
|
|
|
|
c = devx_ufile2uctx(attrs);
|
|
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, dev))
|
|
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_do(dev->mdev, cmd_in,
|
|
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN),
|
|
cmd_out, cmd_out_len);
|
|
if (err && err != -EREMOTEIO)
|
|
return err;
|
|
|
|
err2 = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, cmd_out,
|
|
cmd_out_len);
|
|
|
|
return err2 ?: err;
|
|
}
|
|
|
|
static void devx_obj_build_destroy_cmd(void *in, void *out, void *din,
|
|
u32 *dinlen,
|
|
u32 *obj_id)
|
|
{
|
|
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
|
|
u16 uid = MLX5_GET(general_obj_in_cmd_hdr, in, uid);
|
|
|
|
*obj_id = devx_get_created_obj_id(in, out, opcode);
|
|
*dinlen = MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr);
|
|
MLX5_SET(general_obj_in_cmd_hdr, din, uid, uid);
|
|
|
|
switch (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_id, *obj_id);
|
|
MLX5_SET(general_obj_in_cmd_hdr, din, obj_type,
|
|
MLX5_GET(general_obj_in_cmd_hdr, in, obj_type));
|
|
break;
|
|
|
|
case MLX5_CMD_OP_CREATE_UMEM:
|
|
MLX5_SET(destroy_umem_in, din, opcode,
|
|
MLX5_CMD_OP_DESTROY_UMEM);
|
|
MLX5_SET(destroy_umem_in, din, umem_id, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_MKEY:
|
|
MLX5_SET(destroy_mkey_in, din, opcode,
|
|
MLX5_CMD_OP_DESTROY_MKEY);
|
|
MLX5_SET(destroy_mkey_in, din, mkey_index, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_CQ:
|
|
MLX5_SET(destroy_cq_in, din, opcode, MLX5_CMD_OP_DESTROY_CQ);
|
|
MLX5_SET(destroy_cq_in, din, cqn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_ALLOC_PD:
|
|
MLX5_SET(dealloc_pd_in, din, opcode, MLX5_CMD_OP_DEALLOC_PD);
|
|
MLX5_SET(dealloc_pd_in, din, pd, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
|
|
MLX5_SET(dealloc_transport_domain_in, din, opcode,
|
|
MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
|
|
MLX5_SET(dealloc_transport_domain_in, din, transport_domain,
|
|
*obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_RMP:
|
|
MLX5_SET(destroy_rmp_in, din, opcode, MLX5_CMD_OP_DESTROY_RMP);
|
|
MLX5_SET(destroy_rmp_in, din, rmpn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_SQ:
|
|
MLX5_SET(destroy_sq_in, din, opcode, MLX5_CMD_OP_DESTROY_SQ);
|
|
MLX5_SET(destroy_sq_in, din, sqn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_RQ:
|
|
MLX5_SET(destroy_rq_in, din, opcode, MLX5_CMD_OP_DESTROY_RQ);
|
|
MLX5_SET(destroy_rq_in, din, rqn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_RQT:
|
|
MLX5_SET(destroy_rqt_in, din, opcode, MLX5_CMD_OP_DESTROY_RQT);
|
|
MLX5_SET(destroy_rqt_in, din, rqtn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_TIR:
|
|
MLX5_SET(destroy_tir_in, din, opcode, MLX5_CMD_OP_DESTROY_TIR);
|
|
MLX5_SET(destroy_tir_in, din, tirn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_TIS:
|
|
MLX5_SET(destroy_tis_in, din, opcode, MLX5_CMD_OP_DESTROY_TIS);
|
|
MLX5_SET(destroy_tis_in, din, tisn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_ALLOC_Q_COUNTER:
|
|
MLX5_SET(dealloc_q_counter_in, din, opcode,
|
|
MLX5_CMD_OP_DEALLOC_Q_COUNTER);
|
|
MLX5_SET(dealloc_q_counter_in, din, counter_set_id, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_FLOW_TABLE:
|
|
*dinlen = MLX5_ST_SZ_BYTES(destroy_flow_table_in);
|
|
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(destroy_flow_table_in, 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);
|
|
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(destroy_flow_group_in, 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);
|
|
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(delete_fte_in, din, opcode,
|
|
MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
|
|
break;
|
|
case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
|
|
MLX5_SET(dealloc_flow_counter_in, din, opcode,
|
|
MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
|
|
MLX5_SET(dealloc_flow_counter_in, din, flow_counter_id,
|
|
*obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT:
|
|
MLX5_SET(dealloc_packet_reformat_context_in, din, opcode,
|
|
MLX5_CMD_OP_DEALLOC_PACKET_REFORMAT_CONTEXT);
|
|
MLX5_SET(dealloc_packet_reformat_context_in, din,
|
|
packet_reformat_id, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
|
|
MLX5_SET(dealloc_modify_header_context_in, din, opcode,
|
|
MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
|
|
MLX5_SET(dealloc_modify_header_context_in, din,
|
|
modify_header_id, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
|
|
*dinlen = MLX5_ST_SZ_BYTES(destroy_scheduling_element_in);
|
|
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(destroy_scheduling_element_in, 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);
|
|
MLX5_SET(delete_vxlan_udp_dport_in, din, vxlan_udp_port, *obj_id);
|
|
MLX5_SET(delete_vxlan_udp_dport_in, 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);
|
|
MLX5_SET(delete_l2_table_entry_in, din, table_index, *obj_id);
|
|
MLX5_SET(delete_l2_table_entry_in, din, opcode,
|
|
MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_QP:
|
|
MLX5_SET(destroy_qp_in, din, opcode, MLX5_CMD_OP_DESTROY_QP);
|
|
MLX5_SET(destroy_qp_in, din, qpn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_SRQ:
|
|
MLX5_SET(destroy_srq_in, din, opcode, MLX5_CMD_OP_DESTROY_SRQ);
|
|
MLX5_SET(destroy_srq_in, din, srqn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_XRC_SRQ:
|
|
MLX5_SET(destroy_xrc_srq_in, din, opcode,
|
|
MLX5_CMD_OP_DESTROY_XRC_SRQ);
|
|
MLX5_SET(destroy_xrc_srq_in, din, xrc_srqn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_DCT:
|
|
MLX5_SET(destroy_dct_in, din, opcode, MLX5_CMD_OP_DESTROY_DCT);
|
|
MLX5_SET(destroy_dct_in, din, dctn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_XRQ:
|
|
MLX5_SET(destroy_xrq_in, din, opcode, MLX5_CMD_OP_DESTROY_XRQ);
|
|
MLX5_SET(destroy_xrq_in, din, xrqn, *obj_id);
|
|
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(detach_from_mcg_in, din, opcode,
|
|
MLX5_CMD_OP_DETACH_FROM_MCG);
|
|
MLX5_SET(detach_from_mcg_in, din, qpn, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_ALLOC_XRCD:
|
|
MLX5_SET(dealloc_xrcd_in, din, opcode,
|
|
MLX5_CMD_OP_DEALLOC_XRCD);
|
|
MLX5_SET(dealloc_xrcd_in, din, xrcd, *obj_id);
|
|
break;
|
|
case MLX5_CMD_OP_CREATE_PSV:
|
|
MLX5_SET(destroy_psv_in, din, opcode,
|
|
MLX5_CMD_OP_DESTROY_PSV);
|
|
MLX5_SET(destroy_psv_in, din, psvn, *obj_id);
|
|
break;
|
|
default:
|
|
/* The entry must match to one of the devx_is_obj_create_cmd */
|
|
WARN_ON(true);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int devx_handle_mkey_indirect(struct devx_obj *obj,
|
|
struct mlx5_ib_dev *dev,
|
|
void *in, void *out)
|
|
{
|
|
struct mlx5_ib_mkey *mkey = &obj->mkey;
|
|
void *mkc;
|
|
u8 key;
|
|
|
|
mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
|
|
key = MLX5_GET(mkc, mkc, mkey_7_0);
|
|
mkey->key = mlx5_idx_to_mkey(
|
|
MLX5_GET(create_mkey_out, out, mkey_index)) | key;
|
|
mkey->type = MLX5_MKEY_INDIRECT_DEVX;
|
|
mkey->ndescs = MLX5_GET(mkc, mkc, translations_octword_size);
|
|
init_waitqueue_head(&mkey->wait);
|
|
|
|
return mlx5r_store_odp_mkey(dev, mkey);
|
|
}
|
|
|
|
static int devx_handle_mkey_create(struct mlx5_ib_dev *dev,
|
|
struct devx_obj *obj,
|
|
void *in, int in_len)
|
|
{
|
|
int min_len = MLX5_BYTE_OFF(create_mkey_in, memory_key_mkey_entry) +
|
|
MLX5_FLD_SZ_BYTES(create_mkey_in,
|
|
memory_key_mkey_entry);
|
|
void *mkc;
|
|
u8 access_mode;
|
|
|
|
if (in_len < min_len)
|
|
return -EINVAL;
|
|
|
|
mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
|
|
|
|
access_mode = MLX5_GET(mkc, mkc, access_mode_1_0);
|
|
access_mode |= MLX5_GET(mkc, mkc, access_mode_4_2) << 2;
|
|
|
|
if (access_mode == MLX5_MKC_ACCESS_MODE_KLMS ||
|
|
access_mode == MLX5_MKC_ACCESS_MODE_KSM) {
|
|
if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING))
|
|
obj->flags |= DEVX_OBJ_FLAGS_INDIRECT_MKEY;
|
|
return 0;
|
|
}
|
|
|
|
MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1);
|
|
return 0;
|
|
}
|
|
|
|
static void devx_cleanup_subscription(struct mlx5_ib_dev *dev,
|
|
struct devx_event_subscription *sub)
|
|
{
|
|
struct devx_event *event;
|
|
struct devx_obj_event *xa_val_level2;
|
|
|
|
if (sub->is_cleaned)
|
|
return;
|
|
|
|
sub->is_cleaned = 1;
|
|
list_del_rcu(&sub->xa_list);
|
|
|
|
if (list_empty(&sub->obj_list))
|
|
return;
|
|
|
|
list_del_rcu(&sub->obj_list);
|
|
/* check whether key level 1 for this obj_sub_list is empty */
|
|
event = xa_load(&dev->devx_event_table.event_xa,
|
|
sub->xa_key_level1);
|
|
WARN_ON(!event);
|
|
|
|
xa_val_level2 = xa_load(&event->object_ids, sub->xa_key_level2);
|
|
if (list_empty(&xa_val_level2->obj_sub_list)) {
|
|
xa_erase(&event->object_ids,
|
|
sub->xa_key_level2);
|
|
kfree_rcu(xa_val_level2, rcu);
|
|
}
|
|
}
|
|
|
|
static int devx_obj_cleanup(struct ib_uobject *uobject,
|
|
enum rdma_remove_reason why,
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
|
|
struct mlx5_devx_event_table *devx_event_table;
|
|
struct devx_obj *obj = uobject->object;
|
|
struct devx_event_subscription *sub_entry, *tmp;
|
|
struct mlx5_ib_dev *dev;
|
|
int ret;
|
|
|
|
dev = mlx5_udata_to_mdev(&attrs->driver_udata);
|
|
if (obj->flags & DEVX_OBJ_FLAGS_INDIRECT_MKEY &&
|
|
xa_erase(&obj->ib_dev->odp_mkeys,
|
|
mlx5_base_mkey(obj->mkey.key)))
|
|
/*
|
|
* The pagefault_single_data_segment() does commands against
|
|
* the mmkey, we must wait for that to stop before freeing the
|
|
* mkey, as another allocation could get the same mkey #.
|
|
*/
|
|
mlx5r_deref_wait_odp_mkey(&obj->mkey);
|
|
|
|
if (obj->flags & DEVX_OBJ_FLAGS_DCT)
|
|
ret = mlx5_core_destroy_dct(obj->ib_dev, &obj->core_dct);
|
|
else if (obj->flags & DEVX_OBJ_FLAGS_CQ)
|
|
ret = mlx5_core_destroy_cq(obj->ib_dev->mdev, &obj->core_cq);
|
|
else
|
|
ret = mlx5_cmd_exec(obj->ib_dev->mdev, obj->dinbox,
|
|
obj->dinlen, out, sizeof(out));
|
|
if (ret)
|
|
return ret;
|
|
|
|
devx_event_table = &dev->devx_event_table;
|
|
|
|
mutex_lock(&devx_event_table->event_xa_lock);
|
|
list_for_each_entry_safe(sub_entry, tmp, &obj->event_sub, obj_list)
|
|
devx_cleanup_subscription(dev, sub_entry);
|
|
mutex_unlock(&devx_event_table->event_xa_lock);
|
|
|
|
kfree(obj);
|
|
return ret;
|
|
}
|
|
|
|
static void devx_cq_comp(struct mlx5_core_cq *mcq, struct mlx5_eqe *eqe)
|
|
{
|
|
struct devx_obj *obj = container_of(mcq, struct devx_obj, core_cq);
|
|
struct mlx5_devx_event_table *table;
|
|
struct devx_event *event;
|
|
struct devx_obj_event *obj_event;
|
|
u32 obj_id = mcq->cqn;
|
|
|
|
table = &obj->ib_dev->devx_event_table;
|
|
rcu_read_lock();
|
|
event = xa_load(&table->event_xa, MLX5_EVENT_TYPE_COMP);
|
|
if (!event)
|
|
goto out;
|
|
|
|
obj_event = xa_load(&event->object_ids, obj_id);
|
|
if (!obj_event)
|
|
goto out;
|
|
|
|
dispatch_event_fd(&obj_event->obj_sub_list, eqe);
|
|
out:
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static bool is_apu_cq(struct mlx5_ib_dev *dev, const void *in)
|
|
{
|
|
if (!MLX5_CAP_GEN(dev->mdev, apu) ||
|
|
!MLX5_GET(cqc, MLX5_ADDR_OF(create_cq_in, in, cq_context), apu_cq))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
|
|
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);
|
|
int cmd_in_len = uverbs_attr_get_len(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN);
|
|
void *cmd_out;
|
|
struct ib_uobject *uobj = uverbs_attr_get_uobject(
|
|
attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
|
|
struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context(
|
|
&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
|
|
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;
|
|
u16 obj_type = 0;
|
|
int err, err2 = 0;
|
|
int uid;
|
|
u32 obj_id;
|
|
u16 opcode;
|
|
|
|
if (MLX5_GET(general_obj_in_cmd_hdr, cmd_in, vhca_tunnel_id))
|
|
return -EINVAL;
|
|
|
|
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);
|
|
if (opcode == MLX5_CMD_OP_CREATE_MKEY) {
|
|
err = devx_handle_mkey_create(dev, obj, cmd_in, cmd_in_len);
|
|
if (err)
|
|
goto obj_free;
|
|
} else {
|
|
devx_set_umem_valid(cmd_in);
|
|
}
|
|
|
|
if (opcode == MLX5_CMD_OP_CREATE_DCT) {
|
|
obj->flags |= DEVX_OBJ_FLAGS_DCT;
|
|
err = mlx5_core_create_dct(dev, &obj->core_dct, cmd_in,
|
|
cmd_in_len, cmd_out, cmd_out_len);
|
|
} else if (opcode == MLX5_CMD_OP_CREATE_CQ &&
|
|
!is_apu_cq(dev, cmd_in)) {
|
|
obj->flags |= DEVX_OBJ_FLAGS_CQ;
|
|
obj->core_cq.comp = devx_cq_comp;
|
|
err = mlx5_create_cq(dev->mdev, &obj->core_cq,
|
|
cmd_in, cmd_in_len, cmd_out,
|
|
cmd_out_len);
|
|
} else {
|
|
err = mlx5_cmd_do(dev->mdev, cmd_in, cmd_in_len,
|
|
cmd_out, cmd_out_len);
|
|
}
|
|
|
|
if (err == -EREMOTEIO)
|
|
err2 = uverbs_copy_to(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT,
|
|
cmd_out, cmd_out_len);
|
|
if (err)
|
|
goto obj_free;
|
|
|
|
if (opcode == MLX5_CMD_OP_ALLOC_FLOW_COUNTER) {
|
|
u32 bulk = MLX5_GET(alloc_flow_counter_in,
|
|
cmd_in,
|
|
flow_counter_bulk_log_size);
|
|
|
|
if (bulk)
|
|
bulk = 1 << bulk;
|
|
else
|
|
bulk = 128UL * MLX5_GET(alloc_flow_counter_in,
|
|
cmd_in,
|
|
flow_counter_bulk);
|
|
obj->flow_counter_bulk_size = bulk;
|
|
}
|
|
|
|
uobj->object = obj;
|
|
INIT_LIST_HEAD(&obj->event_sub);
|
|
obj->ib_dev = dev;
|
|
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;
|
|
|
|
if (opcode == MLX5_CMD_OP_CREATE_GENERAL_OBJECT)
|
|
obj_type = MLX5_GET(general_obj_in_cmd_hdr, cmd_in, obj_type);
|
|
obj->obj_id = get_enc_obj_id(opcode | obj_type << 16, obj_id);
|
|
|
|
if (obj->flags & DEVX_OBJ_FLAGS_INDIRECT_MKEY) {
|
|
err = devx_handle_mkey_indirect(obj, dev, cmd_in, cmd_out);
|
|
if (err)
|
|
goto obj_destroy;
|
|
}
|
|
return 0;
|
|
|
|
obj_destroy:
|
|
if (obj->flags & DEVX_OBJ_FLAGS_DCT)
|
|
mlx5_core_destroy_dct(obj->ib_dev, &obj->core_dct);
|
|
else if (obj->flags & DEVX_OBJ_FLAGS_CQ)
|
|
mlx5_core_destroy_cq(obj->ib_dev->mdev, &obj->core_cq);
|
|
else
|
|
mlx5_cmd_exec(obj->ib_dev->mdev, obj->dinbox, obj->dinlen, out,
|
|
sizeof(out));
|
|
obj_free:
|
|
kfree(obj);
|
|
return err2 ?: err;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)(
|
|
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 = rdma_udata_to_drv_context(
|
|
&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
|
|
struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device);
|
|
void *cmd_out;
|
|
int err, err2;
|
|
int uid;
|
|
|
|
if (MLX5_GET(general_obj_in_cmd_hdr, cmd_in, vhca_tunnel_id))
|
|
return -EINVAL;
|
|
|
|
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(attrs, uobj, 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_do(mdev->mdev, cmd_in,
|
|
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN),
|
|
cmd_out, cmd_out_len);
|
|
if (err && err != -EREMOTEIO)
|
|
return err;
|
|
|
|
err2 = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT,
|
|
cmd_out, cmd_out_len);
|
|
|
|
return err2 ?: err;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)(
|
|
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 = rdma_udata_to_drv_context(
|
|
&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
|
|
void *cmd_out;
|
|
int err, err2;
|
|
int uid;
|
|
struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device);
|
|
|
|
if (MLX5_GET(general_obj_in_cmd_hdr, cmd_in, vhca_tunnel_id))
|
|
return -EINVAL;
|
|
|
|
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(attrs, uobj, 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_do(mdev->mdev, cmd_in,
|
|
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN),
|
|
cmd_out, cmd_out_len);
|
|
if (err && err != -EREMOTEIO)
|
|
return err;
|
|
|
|
err2 = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT,
|
|
cmd_out, cmd_out_len);
|
|
|
|
return err2 ?: err;
|
|
}
|
|
|
|
struct devx_async_event_queue {
|
|
spinlock_t lock;
|
|
wait_queue_head_t poll_wait;
|
|
struct list_head event_list;
|
|
atomic_t bytes_in_use;
|
|
u8 is_destroyed:1;
|
|
};
|
|
|
|
struct devx_async_cmd_event_file {
|
|
struct ib_uobject uobj;
|
|
struct devx_async_event_queue ev_queue;
|
|
struct mlx5_async_ctx async_ctx;
|
|
};
|
|
|
|
static void devx_init_event_queue(struct devx_async_event_queue *ev_queue)
|
|
{
|
|
spin_lock_init(&ev_queue->lock);
|
|
INIT_LIST_HEAD(&ev_queue->event_list);
|
|
init_waitqueue_head(&ev_queue->poll_wait);
|
|
atomic_set(&ev_queue->bytes_in_use, 0);
|
|
ev_queue->is_destroyed = 0;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC)(
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct devx_async_cmd_event_file *ev_file;
|
|
|
|
struct ib_uobject *uobj = uverbs_attr_get_uobject(
|
|
attrs, MLX5_IB_ATTR_DEVX_ASYNC_CMD_FD_ALLOC_HANDLE);
|
|
struct mlx5_ib_dev *mdev = mlx5_udata_to_mdev(&attrs->driver_udata);
|
|
|
|
ev_file = container_of(uobj, struct devx_async_cmd_event_file,
|
|
uobj);
|
|
devx_init_event_queue(&ev_file->ev_queue);
|
|
mlx5_cmd_init_async_ctx(mdev->mdev, &ev_file->async_ctx);
|
|
return 0;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_ASYNC_EVENT_FD_ALLOC)(
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct ib_uobject *uobj = uverbs_attr_get_uobject(
|
|
attrs, MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_HANDLE);
|
|
struct devx_async_event_file *ev_file;
|
|
struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context(
|
|
&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
|
|
struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
|
|
u32 flags;
|
|
int err;
|
|
|
|
err = uverbs_get_flags32(&flags, attrs,
|
|
MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_FLAGS,
|
|
MLX5_IB_UAPI_DEVX_CR_EV_CH_FLAGS_OMIT_DATA);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
ev_file = container_of(uobj, struct devx_async_event_file,
|
|
uobj);
|
|
spin_lock_init(&ev_file->lock);
|
|
INIT_LIST_HEAD(&ev_file->event_list);
|
|
init_waitqueue_head(&ev_file->poll_wait);
|
|
if (flags & MLX5_IB_UAPI_DEVX_CR_EV_CH_FLAGS_OMIT_DATA)
|
|
ev_file->omit_data = 1;
|
|
INIT_LIST_HEAD(&ev_file->subscribed_events_list);
|
|
ev_file->dev = dev;
|
|
get_device(&dev->ib_dev.dev);
|
|
return 0;
|
|
}
|
|
|
|
static void devx_query_callback(int status, struct mlx5_async_work *context)
|
|
{
|
|
struct devx_async_data *async_data =
|
|
container_of(context, struct devx_async_data, cb_work);
|
|
struct devx_async_cmd_event_file *ev_file = async_data->ev_file;
|
|
struct devx_async_event_queue *ev_queue = &ev_file->ev_queue;
|
|
unsigned long flags;
|
|
|
|
/*
|
|
* Note that if the struct devx_async_cmd_event_file uobj begins to be
|
|
* destroyed it will block at mlx5_cmd_cleanup_async_ctx() until this
|
|
* routine returns, ensuring that it always remains valid here.
|
|
*/
|
|
spin_lock_irqsave(&ev_queue->lock, flags);
|
|
list_add_tail(&async_data->list, &ev_queue->event_list);
|
|
spin_unlock_irqrestore(&ev_queue->lock, flags);
|
|
|
|
wake_up_interruptible(&ev_queue->poll_wait);
|
|
}
|
|
|
|
#define MAX_ASYNC_BYTES_IN_USE (1024 * 1024) /* 1MB */
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_ASYNC_QUERY)(
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_CMD_IN);
|
|
struct ib_uobject *uobj = uverbs_attr_get_uobject(
|
|
attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_HANDLE);
|
|
u16 cmd_out_len;
|
|
struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context(
|
|
&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
|
|
struct ib_uobject *fd_uobj;
|
|
int err;
|
|
int uid;
|
|
struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device);
|
|
struct devx_async_cmd_event_file *ev_file;
|
|
struct devx_async_data *async_data;
|
|
|
|
if (MLX5_GET(general_obj_in_cmd_hdr, cmd_in, vhca_tunnel_id))
|
|
return -EINVAL;
|
|
|
|
uid = devx_get_uid(c, cmd_in);
|
|
if (uid < 0)
|
|
return uid;
|
|
|
|
if (!devx_is_obj_query_cmd(cmd_in))
|
|
return -EINVAL;
|
|
|
|
err = uverbs_get_const(&cmd_out_len, attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_OUT_LEN);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!devx_is_valid_obj_id(attrs, uobj, cmd_in))
|
|
return -EINVAL;
|
|
|
|
fd_uobj = uverbs_attr_get_uobject(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_FD);
|
|
if (IS_ERR(fd_uobj))
|
|
return PTR_ERR(fd_uobj);
|
|
|
|
ev_file = container_of(fd_uobj, struct devx_async_cmd_event_file,
|
|
uobj);
|
|
|
|
if (atomic_add_return(cmd_out_len, &ev_file->ev_queue.bytes_in_use) >
|
|
MAX_ASYNC_BYTES_IN_USE) {
|
|
atomic_sub(cmd_out_len, &ev_file->ev_queue.bytes_in_use);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
async_data = kvzalloc(struct_size(async_data, hdr.out_data,
|
|
cmd_out_len), GFP_KERNEL);
|
|
if (!async_data) {
|
|
err = -ENOMEM;
|
|
goto sub_bytes;
|
|
}
|
|
|
|
err = uverbs_copy_from(&async_data->hdr.wr_id, attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_WR_ID);
|
|
if (err)
|
|
goto free_async;
|
|
|
|
async_data->cmd_out_len = cmd_out_len;
|
|
async_data->mdev = mdev;
|
|
async_data->ev_file = ev_file;
|
|
|
|
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid);
|
|
err = mlx5_cmd_exec_cb(&ev_file->async_ctx, cmd_in,
|
|
uverbs_attr_get_len(attrs,
|
|
MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_CMD_IN),
|
|
async_data->hdr.out_data,
|
|
async_data->cmd_out_len,
|
|
devx_query_callback, &async_data->cb_work);
|
|
|
|
if (err)
|
|
goto free_async;
|
|
|
|
return 0;
|
|
|
|
free_async:
|
|
kvfree(async_data);
|
|
sub_bytes:
|
|
atomic_sub(cmd_out_len, &ev_file->ev_queue.bytes_in_use);
|
|
return err;
|
|
}
|
|
|
|
static void
|
|
subscribe_event_xa_dealloc(struct mlx5_devx_event_table *devx_event_table,
|
|
u32 key_level1,
|
|
bool is_level2,
|
|
u32 key_level2)
|
|
{
|
|
struct devx_event *event;
|
|
struct devx_obj_event *xa_val_level2;
|
|
|
|
/* Level 1 is valid for future use, no need to free */
|
|
if (!is_level2)
|
|
return;
|
|
|
|
event = xa_load(&devx_event_table->event_xa, key_level1);
|
|
WARN_ON(!event);
|
|
|
|
xa_val_level2 = xa_load(&event->object_ids,
|
|
key_level2);
|
|
if (list_empty(&xa_val_level2->obj_sub_list)) {
|
|
xa_erase(&event->object_ids,
|
|
key_level2);
|
|
kfree_rcu(xa_val_level2, rcu);
|
|
}
|
|
}
|
|
|
|
static int
|
|
subscribe_event_xa_alloc(struct mlx5_devx_event_table *devx_event_table,
|
|
u32 key_level1,
|
|
bool is_level2,
|
|
u32 key_level2)
|
|
{
|
|
struct devx_obj_event *obj_event;
|
|
struct devx_event *event;
|
|
int err;
|
|
|
|
event = xa_load(&devx_event_table->event_xa, key_level1);
|
|
if (!event) {
|
|
event = kzalloc(sizeof(*event), GFP_KERNEL);
|
|
if (!event)
|
|
return -ENOMEM;
|
|
|
|
INIT_LIST_HEAD(&event->unaffiliated_list);
|
|
xa_init(&event->object_ids);
|
|
|
|
err = xa_insert(&devx_event_table->event_xa,
|
|
key_level1,
|
|
event,
|
|
GFP_KERNEL);
|
|
if (err) {
|
|
kfree(event);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
if (!is_level2)
|
|
return 0;
|
|
|
|
obj_event = xa_load(&event->object_ids, key_level2);
|
|
if (!obj_event) {
|
|
obj_event = kzalloc(sizeof(*obj_event), GFP_KERNEL);
|
|
if (!obj_event)
|
|
/* Level1 is valid for future use, no need to free */
|
|
return -ENOMEM;
|
|
|
|
err = xa_insert(&event->object_ids,
|
|
key_level2,
|
|
obj_event,
|
|
GFP_KERNEL);
|
|
if (err) {
|
|
kfree(obj_event);
|
|
return err;
|
|
}
|
|
INIT_LIST_HEAD(&obj_event->obj_sub_list);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool is_valid_events_legacy(int num_events, u16 *event_type_num_list,
|
|
struct devx_obj *obj)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_events; i++) {
|
|
if (obj) {
|
|
if (!is_legacy_obj_event_num(event_type_num_list[i]))
|
|
return false;
|
|
} else if (!is_legacy_unaffiliated_event_num(
|
|
event_type_num_list[i])) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
#define MAX_SUPP_EVENT_NUM 255
|
|
static bool is_valid_events(struct mlx5_core_dev *dev,
|
|
int num_events, u16 *event_type_num_list,
|
|
struct devx_obj *obj)
|
|
{
|
|
__be64 *aff_events;
|
|
__be64 *unaff_events;
|
|
int mask_entry;
|
|
int mask_bit;
|
|
int i;
|
|
|
|
if (MLX5_CAP_GEN(dev, event_cap)) {
|
|
aff_events = MLX5_CAP_DEV_EVENT(dev,
|
|
user_affiliated_events);
|
|
unaff_events = MLX5_CAP_DEV_EVENT(dev,
|
|
user_unaffiliated_events);
|
|
} else {
|
|
return is_valid_events_legacy(num_events, event_type_num_list,
|
|
obj);
|
|
}
|
|
|
|
for (i = 0; i < num_events; i++) {
|
|
if (event_type_num_list[i] > MAX_SUPP_EVENT_NUM)
|
|
return false;
|
|
|
|
mask_entry = event_type_num_list[i] / 64;
|
|
mask_bit = event_type_num_list[i] % 64;
|
|
|
|
if (obj) {
|
|
/* CQ completion */
|
|
if (event_type_num_list[i] == 0)
|
|
continue;
|
|
|
|
if (!(be64_to_cpu(aff_events[mask_entry]) &
|
|
(1ull << mask_bit)))
|
|
return false;
|
|
|
|
continue;
|
|
}
|
|
|
|
if (!(be64_to_cpu(unaff_events[mask_entry]) &
|
|
(1ull << mask_bit)))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
#define MAX_NUM_EVENTS 16
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT)(
|
|
struct uverbs_attr_bundle *attrs)
|
|
{
|
|
struct ib_uobject *devx_uobj = uverbs_attr_get_uobject(
|
|
attrs,
|
|
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_OBJ_HANDLE);
|
|
struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context(
|
|
&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
|
|
struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
|
|
struct ib_uobject *fd_uobj;
|
|
struct devx_obj *obj = NULL;
|
|
struct devx_async_event_file *ev_file;
|
|
struct mlx5_devx_event_table *devx_event_table = &dev->devx_event_table;
|
|
u16 *event_type_num_list;
|
|
struct devx_event_subscription *event_sub, *tmp_sub;
|
|
struct list_head sub_list;
|
|
int redirect_fd;
|
|
bool use_eventfd = false;
|
|
int num_events;
|
|
int num_alloc_xa_entries = 0;
|
|
u16 obj_type = 0;
|
|
u64 cookie = 0;
|
|
u32 obj_id = 0;
|
|
int err;
|
|
int i;
|
|
|
|
if (!c->devx_uid)
|
|
return -EINVAL;
|
|
|
|
if (!IS_ERR(devx_uobj)) {
|
|
obj = (struct devx_obj *)devx_uobj->object;
|
|
if (obj)
|
|
obj_id = get_dec_obj_id(obj->obj_id);
|
|
}
|
|
|
|
fd_uobj = uverbs_attr_get_uobject(attrs,
|
|
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_HANDLE);
|
|
if (IS_ERR(fd_uobj))
|
|
return PTR_ERR(fd_uobj);
|
|
|
|
ev_file = container_of(fd_uobj, struct devx_async_event_file,
|
|
uobj);
|
|
|
|
if (uverbs_attr_is_valid(attrs,
|
|
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_NUM)) {
|
|
err = uverbs_copy_from(&redirect_fd, attrs,
|
|
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_NUM);
|
|
if (err)
|
|
return err;
|
|
|
|
use_eventfd = true;
|
|
}
|
|
|
|
if (uverbs_attr_is_valid(attrs,
|
|
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_COOKIE)) {
|
|
if (use_eventfd)
|
|
return -EINVAL;
|
|
|
|
err = uverbs_copy_from(&cookie, attrs,
|
|
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_COOKIE);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
num_events = uverbs_attr_ptr_get_array_size(
|
|
attrs, MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_TYPE_NUM_LIST,
|
|
sizeof(u16));
|
|
|
|
if (num_events < 0)
|
|
return num_events;
|
|
|
|
if (num_events > MAX_NUM_EVENTS)
|
|
return -EINVAL;
|
|
|
|
event_type_num_list = uverbs_attr_get_alloced_ptr(attrs,
|
|
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_TYPE_NUM_LIST);
|
|
|
|
if (!is_valid_events(dev->mdev, num_events, event_type_num_list, obj))
|
|
return -EINVAL;
|
|
|
|
INIT_LIST_HEAD(&sub_list);
|
|
|
|
/* Protect from concurrent subscriptions to same XA entries to allow
|
|
* both to succeed
|
|
*/
|
|
mutex_lock(&devx_event_table->event_xa_lock);
|
|
for (i = 0; i < num_events; i++) {
|
|
u32 key_level1;
|
|
|
|
if (obj)
|
|
obj_type = get_dec_obj_type(obj,
|
|
event_type_num_list[i]);
|
|
key_level1 = event_type_num_list[i] | obj_type << 16;
|
|
|
|
err = subscribe_event_xa_alloc(devx_event_table,
|
|
key_level1,
|
|
obj,
|
|
obj_id);
|
|
if (err)
|
|
goto err;
|
|
|
|
num_alloc_xa_entries++;
|
|
event_sub = kzalloc(sizeof(*event_sub), GFP_KERNEL);
|
|
if (!event_sub) {
|
|
err = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
list_add_tail(&event_sub->event_list, &sub_list);
|
|
uverbs_uobject_get(&ev_file->uobj);
|
|
if (use_eventfd) {
|
|
event_sub->eventfd =
|
|
eventfd_ctx_fdget(redirect_fd);
|
|
|
|
if (IS_ERR(event_sub->eventfd)) {
|
|
err = PTR_ERR(event_sub->eventfd);
|
|
event_sub->eventfd = NULL;
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
event_sub->cookie = cookie;
|
|
event_sub->ev_file = ev_file;
|
|
/* May be needed upon cleanup the devx object/subscription */
|
|
event_sub->xa_key_level1 = key_level1;
|
|
event_sub->xa_key_level2 = obj_id;
|
|
INIT_LIST_HEAD(&event_sub->obj_list);
|
|
}
|
|
|
|
/* Once all the allocations and the XA data insertions were done we
|
|
* can go ahead and add all the subscriptions to the relevant lists
|
|
* without concern of a failure.
|
|
*/
|
|
list_for_each_entry_safe(event_sub, tmp_sub, &sub_list, event_list) {
|
|
struct devx_event *event;
|
|
struct devx_obj_event *obj_event;
|
|
|
|
list_del_init(&event_sub->event_list);
|
|
|
|
spin_lock_irq(&ev_file->lock);
|
|
list_add_tail_rcu(&event_sub->file_list,
|
|
&ev_file->subscribed_events_list);
|
|
spin_unlock_irq(&ev_file->lock);
|
|
|
|
event = xa_load(&devx_event_table->event_xa,
|
|
event_sub->xa_key_level1);
|
|
WARN_ON(!event);
|
|
|
|
if (!obj) {
|
|
list_add_tail_rcu(&event_sub->xa_list,
|
|
&event->unaffiliated_list);
|
|
continue;
|
|
}
|
|
|
|
obj_event = xa_load(&event->object_ids, obj_id);
|
|
WARN_ON(!obj_event);
|
|
list_add_tail_rcu(&event_sub->xa_list,
|
|
&obj_event->obj_sub_list);
|
|
list_add_tail_rcu(&event_sub->obj_list,
|
|
&obj->event_sub);
|
|
}
|
|
|
|
mutex_unlock(&devx_event_table->event_xa_lock);
|
|
return 0;
|
|
|
|
err:
|
|
list_for_each_entry_safe(event_sub, tmp_sub, &sub_list, event_list) {
|
|
list_del(&event_sub->event_list);
|
|
|
|
subscribe_event_xa_dealloc(devx_event_table,
|
|
event_sub->xa_key_level1,
|
|
obj,
|
|
obj_id);
|
|
|
|
if (event_sub->eventfd)
|
|
eventfd_ctx_put(event_sub->eventfd);
|
|
uverbs_uobject_put(&event_sub->ev_file->uobj);
|
|
kfree(event_sub);
|
|
}
|
|
|
|
mutex_unlock(&devx_event_table->event_xa_lock);
|
|
return err;
|
|
}
|
|
|
|
static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext,
|
|
struct uverbs_attr_bundle *attrs,
|
|
struct devx_umem *obj, u32 access_flags)
|
|
{
|
|
u64 addr;
|
|
size_t size;
|
|
int err;
|
|
|
|
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 = ib_check_mr_access(&dev->ib_dev, access_flags);
|
|
if (err)
|
|
return err;
|
|
|
|
if (uverbs_attr_is_valid(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_DMABUF_FD)) {
|
|
struct ib_umem_dmabuf *umem_dmabuf;
|
|
int dmabuf_fd;
|
|
|
|
err = uverbs_get_raw_fd(&dmabuf_fd, attrs,
|
|
MLX5_IB_ATTR_DEVX_UMEM_REG_DMABUF_FD);
|
|
if (err)
|
|
return -EFAULT;
|
|
|
|
umem_dmabuf = ib_umem_dmabuf_get_pinned(
|
|
&dev->ib_dev, addr, size, dmabuf_fd, access_flags);
|
|
if (IS_ERR(umem_dmabuf))
|
|
return PTR_ERR(umem_dmabuf);
|
|
obj->umem = &umem_dmabuf->umem;
|
|
} else {
|
|
obj->umem = ib_umem_get(&dev->ib_dev, addr, size, access_flags);
|
|
if (IS_ERR(obj->umem))
|
|
return PTR_ERR(obj->umem);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int devx_umem_find_best_pgsize(struct ib_umem *umem,
|
|
unsigned long pgsz_bitmap)
|
|
{
|
|
unsigned long page_size;
|
|
|
|
/* Don't bother checking larger page sizes as offset must be zero and
|
|
* total DEVX umem length must be equal to total umem length.
|
|
*/
|
|
pgsz_bitmap &= GENMASK_ULL(max_t(u64, order_base_2(umem->length),
|
|
PAGE_SHIFT),
|
|
MLX5_ADAPTER_PAGE_SHIFT);
|
|
if (!pgsz_bitmap)
|
|
return 0;
|
|
|
|
page_size = ib_umem_find_best_pgoff(umem, pgsz_bitmap, U64_MAX);
|
|
if (!page_size)
|
|
return 0;
|
|
|
|
/* If the page_size is less than the CPU page size then we can use the
|
|
* offset and create a umem which is a subset of the page list.
|
|
* For larger page sizes we can't be sure the DMA list reflects the
|
|
* VA so we must ensure that the umem extent is exactly equal to the
|
|
* page list. Reduce the page size until one of these cases is true.
|
|
*/
|
|
while ((ib_umem_dma_offset(umem, page_size) != 0 ||
|
|
(umem->length % page_size) != 0) &&
|
|
page_size > PAGE_SIZE)
|
|
page_size /= 2;
|
|
|
|
return page_size;
|
|
}
|
|
|
|
static int devx_umem_reg_cmd_alloc(struct mlx5_ib_dev *dev,
|
|
struct uverbs_attr_bundle *attrs,
|
|
struct devx_umem *obj,
|
|
struct devx_umem_reg_cmd *cmd,
|
|
int access)
|
|
{
|
|
unsigned long pgsz_bitmap;
|
|
unsigned int page_size;
|
|
__be64 *mtt;
|
|
void *umem;
|
|
int ret;
|
|
|
|
/*
|
|
* If the user does not pass in pgsz_bitmap then the user promises not
|
|
* to use umem_offset!=0 in any commands that allocate on top of the
|
|
* umem.
|
|
*
|
|
* If the user wants to use a umem_offset then it must pass in
|
|
* pgsz_bitmap which guides the maximum page size and thus maximum
|
|
* object alignment inside the umem. See the PRM.
|
|
*
|
|
* Users are not allowed to use IOVA here, mkeys are not supported on
|
|
* umem.
|
|
*/
|
|
ret = uverbs_get_const_default(&pgsz_bitmap, attrs,
|
|
MLX5_IB_ATTR_DEVX_UMEM_REG_PGSZ_BITMAP,
|
|
GENMASK_ULL(63,
|
|
min(PAGE_SHIFT, MLX5_ADAPTER_PAGE_SHIFT)));
|
|
if (ret)
|
|
return ret;
|
|
|
|
page_size = devx_umem_find_best_pgsize(obj->umem, pgsz_bitmap);
|
|
if (!page_size)
|
|
return -EINVAL;
|
|
|
|
cmd->inlen = MLX5_ST_SZ_BYTES(create_umem_in) +
|
|
(MLX5_ST_SZ_BYTES(mtt) *
|
|
ib_umem_num_dma_blocks(obj->umem, page_size));
|
|
cmd->in = uverbs_zalloc(attrs, cmd->inlen);
|
|
if (IS_ERR(cmd->in))
|
|
return PTR_ERR(cmd->in);
|
|
|
|
umem = MLX5_ADDR_OF(create_umem_in, cmd->in, umem);
|
|
mtt = (__be64 *)MLX5_ADDR_OF(umem, umem, mtt);
|
|
|
|
MLX5_SET(create_umem_in, cmd->in, opcode, MLX5_CMD_OP_CREATE_UMEM);
|
|
MLX5_SET64(umem, umem, num_of_mtt,
|
|
ib_umem_num_dma_blocks(obj->umem, page_size));
|
|
MLX5_SET(umem, umem, log_page_size,
|
|
order_base_2(page_size) - MLX5_ADAPTER_PAGE_SHIFT);
|
|
MLX5_SET(umem, umem, page_offset,
|
|
ib_umem_dma_offset(obj->umem, page_size));
|
|
|
|
if (mlx5_umem_needs_ats(dev, obj->umem, access))
|
|
MLX5_SET(umem, umem, ats, 1);
|
|
|
|
mlx5_ib_populate_pas(obj->umem, page_size, mtt,
|
|
(obj->umem->writable ? MLX5_IB_MTT_WRITE : 0) |
|
|
MLX5_IB_MTT_READ);
|
|
return 0;
|
|
}
|
|
|
|
static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_UMEM_REG)(
|
|
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 = rdma_udata_to_drv_context(
|
|
&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
|
|
struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
|
|
int access_flags;
|
|
int err;
|
|
|
|
if (!c->devx_uid)
|
|
return -EINVAL;
|
|
|
|
err = uverbs_get_flags32(&access_flags, attrs,
|
|
MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
|
|
IB_ACCESS_LOCAL_WRITE |
|
|
IB_ACCESS_REMOTE_WRITE |
|
|
IB_ACCESS_REMOTE_READ |
|
|
IB_ACCESS_RELAXED_ORDERING);
|
|
if (err)
|
|
return err;
|
|
|
|
obj = kzalloc(sizeof(struct devx_umem), GFP_KERNEL);
|
|
if (!obj)
|
|
return -ENOMEM;
|
|
|
|
err = devx_umem_get(dev, &c->ibucontext, attrs, obj, access_flags);
|
|
if (err)
|
|
goto err_obj_free;
|
|
|
|
err = devx_umem_reg_cmd_alloc(dev, attrs, obj, &cmd, access_flags);
|
|
if (err)
|
|
goto err_umem_release;
|
|
|
|
MLX5_SET(create_umem_in, 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);
|
|
uverbs_finalize_uobj_create(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE);
|
|
|
|
err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, &obj_id,
|
|
sizeof(obj_id));
|
|
return err;
|
|
|
|
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 uverbs_attr_bundle *attrs)
|
|
{
|
|
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 (err)
|
|
return err;
|
|
|
|
ib_umem_release(obj->umem);
|
|
kfree(obj);
|
|
return 0;
|
|
}
|
|
|
|
static bool is_unaffiliated_event(struct mlx5_core_dev *dev,
|
|
unsigned long event_type)
|
|
{
|
|
__be64 *unaff_events;
|
|
int mask_entry;
|
|
int mask_bit;
|
|
|
|
if (!MLX5_CAP_GEN(dev, event_cap))
|
|
return is_legacy_unaffiliated_event_num(event_type);
|
|
|
|
unaff_events = MLX5_CAP_DEV_EVENT(dev,
|
|
user_unaffiliated_events);
|
|
WARN_ON(event_type > MAX_SUPP_EVENT_NUM);
|
|
|
|
mask_entry = event_type / 64;
|
|
mask_bit = event_type % 64;
|
|
|
|
if (!(be64_to_cpu(unaff_events[mask_entry]) & (1ull << mask_bit)))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static u32 devx_get_obj_id_from_event(unsigned long event_type, void *data)
|
|
{
|
|
struct mlx5_eqe *eqe = data;
|
|
u32 obj_id = 0;
|
|
|
|
switch (event_type) {
|
|
case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR:
|
|
case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT:
|
|
case MLX5_EVENT_TYPE_PATH_MIG:
|
|
case MLX5_EVENT_TYPE_COMM_EST:
|
|
case MLX5_EVENT_TYPE_SQ_DRAINED:
|
|
case MLX5_EVENT_TYPE_SRQ_LAST_WQE:
|
|
case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
|
|
case MLX5_EVENT_TYPE_PATH_MIG_FAILED:
|
|
case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
|
|
case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR:
|
|
obj_id = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff;
|
|
break;
|
|
case MLX5_EVENT_TYPE_XRQ_ERROR:
|
|
obj_id = be32_to_cpu(eqe->data.xrq_err.type_xrqn) & 0xffffff;
|
|
break;
|
|
case MLX5_EVENT_TYPE_DCT_DRAINED:
|
|
case MLX5_EVENT_TYPE_DCT_KEY_VIOLATION:
|
|
obj_id = be32_to_cpu(eqe->data.dct.dctn) & 0xffffff;
|
|
break;
|
|
case MLX5_EVENT_TYPE_CQ_ERROR:
|
|
obj_id = be32_to_cpu(eqe->data.cq_err.cqn) & 0xffffff;
|
|
break;
|
|
default:
|
|
obj_id = MLX5_GET(affiliated_event_header, &eqe->data, obj_id);
|
|
break;
|
|
}
|
|
|
|
return obj_id;
|
|
}
|
|
|
|
static int deliver_event(struct devx_event_subscription *event_sub,
|
|
const void *data)
|
|
{
|
|
struct devx_async_event_file *ev_file;
|
|
struct devx_async_event_data *event_data;
|
|
unsigned long flags;
|
|
|
|
ev_file = event_sub->ev_file;
|
|
|
|
if (ev_file->omit_data) {
|
|
spin_lock_irqsave(&ev_file->lock, flags);
|
|
if (!list_empty(&event_sub->event_list) ||
|
|
ev_file->is_destroyed) {
|
|
spin_unlock_irqrestore(&ev_file->lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
list_add_tail(&event_sub->event_list, &ev_file->event_list);
|
|
spin_unlock_irqrestore(&ev_file->lock, flags);
|
|
wake_up_interruptible(&ev_file->poll_wait);
|
|
return 0;
|
|
}
|
|
|
|
event_data = kzalloc(sizeof(*event_data) + sizeof(struct mlx5_eqe),
|
|
GFP_ATOMIC);
|
|
if (!event_data) {
|
|
spin_lock_irqsave(&ev_file->lock, flags);
|
|
ev_file->is_overflow_err = 1;
|
|
spin_unlock_irqrestore(&ev_file->lock, flags);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
event_data->hdr.cookie = event_sub->cookie;
|
|
memcpy(event_data->hdr.out_data, data, sizeof(struct mlx5_eqe));
|
|
|
|
spin_lock_irqsave(&ev_file->lock, flags);
|
|
if (!ev_file->is_destroyed)
|
|
list_add_tail(&event_data->list, &ev_file->event_list);
|
|
else
|
|
kfree(event_data);
|
|
spin_unlock_irqrestore(&ev_file->lock, flags);
|
|
wake_up_interruptible(&ev_file->poll_wait);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void dispatch_event_fd(struct list_head *fd_list,
|
|
const void *data)
|
|
{
|
|
struct devx_event_subscription *item;
|
|
|
|
list_for_each_entry_rcu(item, fd_list, xa_list) {
|
|
if (item->eventfd)
|
|
eventfd_signal(item->eventfd, 1);
|
|
else
|
|
deliver_event(item, data);
|
|
}
|
|
}
|
|
|
|
static int devx_event_notifier(struct notifier_block *nb,
|
|
unsigned long event_type, void *data)
|
|
{
|
|
struct mlx5_devx_event_table *table;
|
|
struct mlx5_ib_dev *dev;
|
|
struct devx_event *event;
|
|
struct devx_obj_event *obj_event;
|
|
u16 obj_type = 0;
|
|
bool is_unaffiliated;
|
|
u32 obj_id;
|
|
|
|
/* Explicit filtering to kernel events which may occur frequently */
|
|
if (event_type == MLX5_EVENT_TYPE_CMD ||
|
|
event_type == MLX5_EVENT_TYPE_PAGE_REQUEST)
|
|
return NOTIFY_OK;
|
|
|
|
table = container_of(nb, struct mlx5_devx_event_table, devx_nb.nb);
|
|
dev = container_of(table, struct mlx5_ib_dev, devx_event_table);
|
|
is_unaffiliated = is_unaffiliated_event(dev->mdev, event_type);
|
|
|
|
if (!is_unaffiliated)
|
|
obj_type = get_event_obj_type(event_type, data);
|
|
|
|
rcu_read_lock();
|
|
event = xa_load(&table->event_xa, event_type | (obj_type << 16));
|
|
if (!event) {
|
|
rcu_read_unlock();
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
if (is_unaffiliated) {
|
|
dispatch_event_fd(&event->unaffiliated_list, data);
|
|
rcu_read_unlock();
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
obj_id = devx_get_obj_id_from_event(event_type, data);
|
|
obj_event = xa_load(&event->object_ids, obj_id);
|
|
if (!obj_event) {
|
|
rcu_read_unlock();
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
dispatch_event_fd(&obj_event->obj_sub_list, data);
|
|
|
|
rcu_read_unlock();
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
int mlx5_ib_devx_init(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_devx_event_table *table = &dev->devx_event_table;
|
|
int uid;
|
|
|
|
uid = mlx5_ib_devx_create(dev, false);
|
|
if (uid > 0) {
|
|
dev->devx_whitelist_uid = uid;
|
|
xa_init(&table->event_xa);
|
|
mutex_init(&table->event_xa_lock);
|
|
MLX5_NB_INIT(&table->devx_nb, devx_event_notifier, NOTIFY_ANY);
|
|
mlx5_eq_notifier_register(dev->mdev, &table->devx_nb);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev)
|
|
{
|
|
struct mlx5_devx_event_table *table = &dev->devx_event_table;
|
|
struct devx_event_subscription *sub, *tmp;
|
|
struct devx_event *event;
|
|
void *entry;
|
|
unsigned long id;
|
|
|
|
if (dev->devx_whitelist_uid) {
|
|
mlx5_eq_notifier_unregister(dev->mdev, &table->devx_nb);
|
|
mutex_lock(&dev->devx_event_table.event_xa_lock);
|
|
xa_for_each(&table->event_xa, id, entry) {
|
|
event = entry;
|
|
list_for_each_entry_safe(
|
|
sub, tmp, &event->unaffiliated_list, xa_list)
|
|
devx_cleanup_subscription(dev, sub);
|
|
kfree(entry);
|
|
}
|
|
mutex_unlock(&dev->devx_event_table.event_xa_lock);
|
|
xa_destroy(&table->event_xa);
|
|
|
|
mlx5_ib_devx_destroy(dev, dev->devx_whitelist_uid);
|
|
}
|
|
}
|
|
|
|
static ssize_t devx_async_cmd_event_read(struct file *filp, char __user *buf,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
struct devx_async_cmd_event_file *comp_ev_file = filp->private_data;
|
|
struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue;
|
|
struct devx_async_data *event;
|
|
int ret = 0;
|
|
size_t eventsz;
|
|
|
|
spin_lock_irq(&ev_queue->lock);
|
|
|
|
while (list_empty(&ev_queue->event_list)) {
|
|
spin_unlock_irq(&ev_queue->lock);
|
|
|
|
if (filp->f_flags & O_NONBLOCK)
|
|
return -EAGAIN;
|
|
|
|
if (wait_event_interruptible(
|
|
ev_queue->poll_wait,
|
|
(!list_empty(&ev_queue->event_list) ||
|
|
ev_queue->is_destroyed))) {
|
|
return -ERESTARTSYS;
|
|
}
|
|
|
|
spin_lock_irq(&ev_queue->lock);
|
|
if (ev_queue->is_destroyed) {
|
|
spin_unlock_irq(&ev_queue->lock);
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
event = list_entry(ev_queue->event_list.next,
|
|
struct devx_async_data, list);
|
|
eventsz = event->cmd_out_len +
|
|
sizeof(struct mlx5_ib_uapi_devx_async_cmd_hdr);
|
|
|
|
if (eventsz > count) {
|
|
spin_unlock_irq(&ev_queue->lock);
|
|
return -ENOSPC;
|
|
}
|
|
|
|
list_del(ev_queue->event_list.next);
|
|
spin_unlock_irq(&ev_queue->lock);
|
|
|
|
if (copy_to_user(buf, &event->hdr, eventsz))
|
|
ret = -EFAULT;
|
|
else
|
|
ret = eventsz;
|
|
|
|
atomic_sub(event->cmd_out_len, &ev_queue->bytes_in_use);
|
|
kvfree(event);
|
|
return ret;
|
|
}
|
|
|
|
static __poll_t devx_async_cmd_event_poll(struct file *filp,
|
|
struct poll_table_struct *wait)
|
|
{
|
|
struct devx_async_cmd_event_file *comp_ev_file = filp->private_data;
|
|
struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue;
|
|
__poll_t pollflags = 0;
|
|
|
|
poll_wait(filp, &ev_queue->poll_wait, wait);
|
|
|
|
spin_lock_irq(&ev_queue->lock);
|
|
if (ev_queue->is_destroyed)
|
|
pollflags = EPOLLIN | EPOLLRDNORM | EPOLLRDHUP;
|
|
else if (!list_empty(&ev_queue->event_list))
|
|
pollflags = EPOLLIN | EPOLLRDNORM;
|
|
spin_unlock_irq(&ev_queue->lock);
|
|
|
|
return pollflags;
|
|
}
|
|
|
|
static const struct file_operations devx_async_cmd_event_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = devx_async_cmd_event_read,
|
|
.poll = devx_async_cmd_event_poll,
|
|
.release = uverbs_uobject_fd_release,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
static ssize_t devx_async_event_read(struct file *filp, char __user *buf,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
struct devx_async_event_file *ev_file = filp->private_data;
|
|
struct devx_event_subscription *event_sub;
|
|
struct devx_async_event_data *event;
|
|
int ret = 0;
|
|
size_t eventsz;
|
|
bool omit_data;
|
|
void *event_data;
|
|
|
|
omit_data = ev_file->omit_data;
|
|
|
|
spin_lock_irq(&ev_file->lock);
|
|
|
|
if (ev_file->is_overflow_err) {
|
|
ev_file->is_overflow_err = 0;
|
|
spin_unlock_irq(&ev_file->lock);
|
|
return -EOVERFLOW;
|
|
}
|
|
|
|
|
|
while (list_empty(&ev_file->event_list)) {
|
|
spin_unlock_irq(&ev_file->lock);
|
|
|
|
if (filp->f_flags & O_NONBLOCK)
|
|
return -EAGAIN;
|
|
|
|
if (wait_event_interruptible(ev_file->poll_wait,
|
|
(!list_empty(&ev_file->event_list) ||
|
|
ev_file->is_destroyed))) {
|
|
return -ERESTARTSYS;
|
|
}
|
|
|
|
spin_lock_irq(&ev_file->lock);
|
|
if (ev_file->is_destroyed) {
|
|
spin_unlock_irq(&ev_file->lock);
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
if (omit_data) {
|
|
event_sub = list_first_entry(&ev_file->event_list,
|
|
struct devx_event_subscription,
|
|
event_list);
|
|
eventsz = sizeof(event_sub->cookie);
|
|
event_data = &event_sub->cookie;
|
|
} else {
|
|
event = list_first_entry(&ev_file->event_list,
|
|
struct devx_async_event_data, list);
|
|
eventsz = sizeof(struct mlx5_eqe) +
|
|
sizeof(struct mlx5_ib_uapi_devx_async_event_hdr);
|
|
event_data = &event->hdr;
|
|
}
|
|
|
|
if (eventsz > count) {
|
|
spin_unlock_irq(&ev_file->lock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (omit_data)
|
|
list_del_init(&event_sub->event_list);
|
|
else
|
|
list_del(&event->list);
|
|
|
|
spin_unlock_irq(&ev_file->lock);
|
|
|
|
if (copy_to_user(buf, event_data, eventsz))
|
|
/* This points to an application issue, not a kernel concern */
|
|
ret = -EFAULT;
|
|
else
|
|
ret = eventsz;
|
|
|
|
if (!omit_data)
|
|
kfree(event);
|
|
return ret;
|
|
}
|
|
|
|
static __poll_t devx_async_event_poll(struct file *filp,
|
|
struct poll_table_struct *wait)
|
|
{
|
|
struct devx_async_event_file *ev_file = filp->private_data;
|
|
__poll_t pollflags = 0;
|
|
|
|
poll_wait(filp, &ev_file->poll_wait, wait);
|
|
|
|
spin_lock_irq(&ev_file->lock);
|
|
if (ev_file->is_destroyed)
|
|
pollflags = EPOLLIN | EPOLLRDNORM | EPOLLRDHUP;
|
|
else if (!list_empty(&ev_file->event_list))
|
|
pollflags = EPOLLIN | EPOLLRDNORM;
|
|
spin_unlock_irq(&ev_file->lock);
|
|
|
|
return pollflags;
|
|
}
|
|
|
|
static void devx_free_subscription(struct rcu_head *rcu)
|
|
{
|
|
struct devx_event_subscription *event_sub =
|
|
container_of(rcu, struct devx_event_subscription, rcu);
|
|
|
|
if (event_sub->eventfd)
|
|
eventfd_ctx_put(event_sub->eventfd);
|
|
uverbs_uobject_put(&event_sub->ev_file->uobj);
|
|
kfree(event_sub);
|
|
}
|
|
|
|
static const struct file_operations devx_async_event_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = devx_async_event_read,
|
|
.poll = devx_async_event_poll,
|
|
.release = uverbs_uobject_fd_release,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
static void devx_async_cmd_event_destroy_uobj(struct ib_uobject *uobj,
|
|
enum rdma_remove_reason why)
|
|
{
|
|
struct devx_async_cmd_event_file *comp_ev_file =
|
|
container_of(uobj, struct devx_async_cmd_event_file,
|
|
uobj);
|
|
struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue;
|
|
struct devx_async_data *entry, *tmp;
|
|
|
|
spin_lock_irq(&ev_queue->lock);
|
|
ev_queue->is_destroyed = 1;
|
|
spin_unlock_irq(&ev_queue->lock);
|
|
wake_up_interruptible(&ev_queue->poll_wait);
|
|
|
|
mlx5_cmd_cleanup_async_ctx(&comp_ev_file->async_ctx);
|
|
|
|
spin_lock_irq(&comp_ev_file->ev_queue.lock);
|
|
list_for_each_entry_safe(entry, tmp,
|
|
&comp_ev_file->ev_queue.event_list, list) {
|
|
list_del(&entry->list);
|
|
kvfree(entry);
|
|
}
|
|
spin_unlock_irq(&comp_ev_file->ev_queue.lock);
|
|
};
|
|
|
|
static void devx_async_event_destroy_uobj(struct ib_uobject *uobj,
|
|
enum rdma_remove_reason why)
|
|
{
|
|
struct devx_async_event_file *ev_file =
|
|
container_of(uobj, struct devx_async_event_file,
|
|
uobj);
|
|
struct devx_event_subscription *event_sub, *event_sub_tmp;
|
|
struct mlx5_ib_dev *dev = ev_file->dev;
|
|
|
|
spin_lock_irq(&ev_file->lock);
|
|
ev_file->is_destroyed = 1;
|
|
|
|
/* free the pending events allocation */
|
|
if (ev_file->omit_data) {
|
|
struct devx_event_subscription *event_sub, *tmp;
|
|
|
|
list_for_each_entry_safe(event_sub, tmp, &ev_file->event_list,
|
|
event_list)
|
|
list_del_init(&event_sub->event_list);
|
|
|
|
} else {
|
|
struct devx_async_event_data *entry, *tmp;
|
|
|
|
list_for_each_entry_safe(entry, tmp, &ev_file->event_list,
|
|
list) {
|
|
list_del(&entry->list);
|
|
kfree(entry);
|
|
}
|
|
}
|
|
|
|
spin_unlock_irq(&ev_file->lock);
|
|
wake_up_interruptible(&ev_file->poll_wait);
|
|
|
|
mutex_lock(&dev->devx_event_table.event_xa_lock);
|
|
/* delete the subscriptions which are related to this FD */
|
|
list_for_each_entry_safe(event_sub, event_sub_tmp,
|
|
&ev_file->subscribed_events_list, file_list) {
|
|
devx_cleanup_subscription(dev, event_sub);
|
|
list_del_rcu(&event_sub->file_list);
|
|
/* subscription may not be used by the read API any more */
|
|
call_rcu(&event_sub->rcu, devx_free_subscription);
|
|
}
|
|
mutex_unlock(&dev->devx_event_table.event_xa_lock);
|
|
|
|
put_device(&dev->ib_dev.dev);
|
|
};
|
|
|
|
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_RAW_FD(MLX5_IB_ATTR_DEVX_UMEM_REG_DMABUF_FD,
|
|
UA_OPTIONAL),
|
|
UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
|
|
enum ib_access_flags),
|
|
UVERBS_ATTR_CONST_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_PGSZ_BITMAP,
|
|
u64),
|
|
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,
|
|
UVERBS_IDR_ANY_OBJECT,
|
|
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,
|
|
UVERBS_IDR_ANY_OBJECT,
|
|
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_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_OBJ_ASYNC_QUERY,
|
|
UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE,
|
|
UVERBS_IDR_ANY_OBJECT,
|
|
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_CONST_IN(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_OUT_LEN,
|
|
u16, UA_MANDATORY),
|
|
UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_FD,
|
|
MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD,
|
|
UVERBS_ACCESS_READ,
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_WR_ID,
|
|
UVERBS_ATTR_TYPE(u64),
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT,
|
|
UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_HANDLE,
|
|
MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD,
|
|
UVERBS_ACCESS_READ,
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_OBJ_HANDLE,
|
|
MLX5_IB_OBJECT_DEVX_OBJ,
|
|
UVERBS_ACCESS_READ,
|
|
UA_OPTIONAL),
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_TYPE_NUM_LIST,
|
|
UVERBS_ATTR_MIN_SIZE(sizeof(u16)),
|
|
UA_MANDATORY,
|
|
UA_ALLOC_AND_COPY),
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_COOKIE,
|
|
UVERBS_ATTR_TYPE(u64),
|
|
UA_OPTIONAL),
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_NUM,
|
|
UVERBS_ATTR_TYPE(u32),
|
|
UA_OPTIONAL));
|
|
|
|
DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX,
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&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT));
|
|
|
|
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),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_ASYNC_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_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC,
|
|
UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_ASYNC_CMD_FD_ALLOC_HANDLE,
|
|
MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD,
|
|
UVERBS_ACCESS_NEW,
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_OBJECT(
|
|
MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD,
|
|
UVERBS_TYPE_ALLOC_FD(sizeof(struct devx_async_cmd_event_file),
|
|
devx_async_cmd_event_destroy_uobj,
|
|
&devx_async_cmd_event_fops, "[devx_async_cmd]",
|
|
O_RDONLY),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DEVX_ASYNC_EVENT_FD_ALLOC,
|
|
UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_HANDLE,
|
|
MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD,
|
|
UVERBS_ACCESS_NEW,
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_FLAGS,
|
|
enum mlx5_ib_uapi_devx_create_event_channel_flags,
|
|
UA_MANDATORY));
|
|
|
|
DECLARE_UVERBS_NAMED_OBJECT(
|
|
MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD,
|
|
UVERBS_TYPE_ALLOC_FD(sizeof(struct devx_async_event_file),
|
|
devx_async_event_destroy_uobj,
|
|
&devx_async_event_fops, "[devx_async_event]",
|
|
O_RDONLY),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DEVX_ASYNC_EVENT_FD_ALLOC));
|
|
|
|
static bool devx_is_supported(struct ib_device *device)
|
|
{
|
|
struct mlx5_ib_dev *dev = to_mdev(device);
|
|
|
|
return MLX5_CAP_GEN(dev->mdev, log_max_uctx);
|
|
}
|
|
|
|
const struct uapi_definition mlx5_ib_devx_defs[] = {
|
|
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
|
|
MLX5_IB_OBJECT_DEVX,
|
|
UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)),
|
|
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
|
|
MLX5_IB_OBJECT_DEVX_OBJ,
|
|
UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)),
|
|
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
|
|
MLX5_IB_OBJECT_DEVX_UMEM,
|
|
UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)),
|
|
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
|
|
MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD,
|
|
UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)),
|
|
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
|
|
MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD,
|
|
UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)),
|
|
{},
|
|
};
|