608 lines
17 KiB
C
608 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
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/*
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* Copyright (c) 2021, Mellanox Technologies inc. All rights reserved.
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*/
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#include <rdma/uverbs_std_types.h>
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#include "dm.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 int mlx5_cmd_alloc_memic(struct mlx5_dm *dm, phys_addr_t *addr,
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u64 length, u32 alignment)
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{
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struct mlx5_core_dev *dev = dm->dev;
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u64 num_memic_hw_pages = MLX5_CAP_DEV_MEM(dev, memic_bar_size)
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>> PAGE_SHIFT;
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u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr);
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u32 max_alignment = MLX5_CAP_DEV_MEM(dev, log_max_memic_addr_alignment);
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u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE);
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u32 out[MLX5_ST_SZ_DW(alloc_memic_out)] = {};
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u32 in[MLX5_ST_SZ_DW(alloc_memic_in)] = {};
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u32 mlx5_alignment;
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u64 page_idx = 0;
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int ret = 0;
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if (!length || (length & MLX5_MEMIC_ALLOC_SIZE_MASK))
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return -EINVAL;
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/* mlx5 device sets alignment as 64*2^driver_value
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* so normalizing is needed.
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*/
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mlx5_alignment = (alignment < MLX5_MEMIC_BASE_ALIGN) ? 0 :
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alignment - MLX5_MEMIC_BASE_ALIGN;
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if (mlx5_alignment > max_alignment)
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return -EINVAL;
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MLX5_SET(alloc_memic_in, in, opcode, MLX5_CMD_OP_ALLOC_MEMIC);
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MLX5_SET(alloc_memic_in, in, range_size, num_pages * PAGE_SIZE);
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MLX5_SET(alloc_memic_in, in, memic_size, length);
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MLX5_SET(alloc_memic_in, in, log_memic_addr_alignment,
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mlx5_alignment);
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while (page_idx < num_memic_hw_pages) {
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spin_lock(&dm->lock);
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page_idx = bitmap_find_next_zero_area(dm->memic_alloc_pages,
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num_memic_hw_pages,
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page_idx,
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num_pages, 0);
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if (page_idx < num_memic_hw_pages)
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bitmap_set(dm->memic_alloc_pages,
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page_idx, num_pages);
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spin_unlock(&dm->lock);
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if (page_idx >= num_memic_hw_pages)
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break;
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MLX5_SET64(alloc_memic_in, in, range_start_addr,
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hw_start_addr + (page_idx * PAGE_SIZE));
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ret = mlx5_cmd_exec_inout(dev, alloc_memic, in, out);
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if (ret) {
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spin_lock(&dm->lock);
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bitmap_clear(dm->memic_alloc_pages,
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page_idx, num_pages);
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spin_unlock(&dm->lock);
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if (ret == -EAGAIN) {
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page_idx++;
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continue;
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}
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return ret;
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}
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*addr = dev->bar_addr +
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MLX5_GET64(alloc_memic_out, out, memic_start_addr);
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return 0;
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}
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return -ENOMEM;
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}
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void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr,
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u64 length)
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{
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struct mlx5_core_dev *dev = dm->dev;
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u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr);
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u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE);
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u32 in[MLX5_ST_SZ_DW(dealloc_memic_in)] = {};
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u64 start_page_idx;
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int err;
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addr -= dev->bar_addr;
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start_page_idx = (addr - hw_start_addr) >> PAGE_SHIFT;
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MLX5_SET(dealloc_memic_in, in, opcode, MLX5_CMD_OP_DEALLOC_MEMIC);
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MLX5_SET64(dealloc_memic_in, in, memic_start_addr, addr);
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MLX5_SET(dealloc_memic_in, in, memic_size, length);
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err = mlx5_cmd_exec_in(dev, dealloc_memic, in);
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if (err)
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return;
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spin_lock(&dm->lock);
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bitmap_clear(dm->memic_alloc_pages,
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start_page_idx, num_pages);
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spin_unlock(&dm->lock);
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}
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void mlx5_cmd_dealloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr,
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u8 operation)
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{
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u32 in[MLX5_ST_SZ_DW(modify_memic_in)] = {};
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struct mlx5_core_dev *dev = dm->dev;
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MLX5_SET(modify_memic_in, in, opcode, MLX5_CMD_OP_MODIFY_MEMIC);
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MLX5_SET(modify_memic_in, in, op_mod, MLX5_MODIFY_MEMIC_OP_MOD_DEALLOC);
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MLX5_SET(modify_memic_in, in, memic_operation_type, operation);
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MLX5_SET64(modify_memic_in, in, memic_start_addr, addr - dev->bar_addr);
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mlx5_cmd_exec_in(dev, modify_memic, in);
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}
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static int mlx5_cmd_alloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr,
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u8 operation, phys_addr_t *op_addr)
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{
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u32 out[MLX5_ST_SZ_DW(modify_memic_out)] = {};
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u32 in[MLX5_ST_SZ_DW(modify_memic_in)] = {};
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struct mlx5_core_dev *dev = dm->dev;
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int err;
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MLX5_SET(modify_memic_in, in, opcode, MLX5_CMD_OP_MODIFY_MEMIC);
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MLX5_SET(modify_memic_in, in, op_mod, MLX5_MODIFY_MEMIC_OP_MOD_ALLOC);
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MLX5_SET(modify_memic_in, in, memic_operation_type, operation);
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MLX5_SET64(modify_memic_in, in, memic_start_addr, addr - dev->bar_addr);
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err = mlx5_cmd_exec_inout(dev, modify_memic, in, out);
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if (err)
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return err;
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*op_addr = dev->bar_addr +
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MLX5_GET64(modify_memic_out, out, memic_operation_addr);
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return 0;
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}
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static int add_dm_mmap_entry(struct ib_ucontext *context,
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struct mlx5_user_mmap_entry *mentry, u8 mmap_flag,
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size_t size, u64 address)
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{
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mentry->mmap_flag = mmap_flag;
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mentry->address = address;
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return rdma_user_mmap_entry_insert_range(
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context, &mentry->rdma_entry, size,
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MLX5_IB_MMAP_DEVICE_MEM << 16,
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(MLX5_IB_MMAP_DEVICE_MEM << 16) + (1UL << 16) - 1);
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}
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static void mlx5_ib_dm_memic_free(struct kref *kref)
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{
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struct mlx5_ib_dm_memic *dm =
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container_of(kref, struct mlx5_ib_dm_memic, ref);
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struct mlx5_ib_dev *dev = to_mdev(dm->base.ibdm.device);
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mlx5_cmd_dealloc_memic(&dev->dm, dm->base.dev_addr, dm->base.size);
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kfree(dm);
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}
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static int copy_op_to_user(struct mlx5_ib_dm_op_entry *op_entry,
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struct uverbs_attr_bundle *attrs)
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{
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u64 start_offset;
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u16 page_idx;
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int err;
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page_idx = op_entry->mentry.rdma_entry.start_pgoff & 0xFFFF;
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start_offset = op_entry->op_addr & ~PAGE_MASK;
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err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DM_MAP_OP_ADDR_RESP_PAGE_INDEX,
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&page_idx, sizeof(page_idx));
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if (err)
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return err;
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return uverbs_copy_to(attrs,
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MLX5_IB_ATTR_DM_MAP_OP_ADDR_RESP_START_OFFSET,
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&start_offset, sizeof(start_offset));
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}
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static int map_existing_op(struct mlx5_ib_dm_memic *dm, u8 op,
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struct uverbs_attr_bundle *attrs)
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{
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struct mlx5_ib_dm_op_entry *op_entry;
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op_entry = xa_load(&dm->ops, op);
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if (!op_entry)
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return -ENOENT;
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return copy_op_to_user(op_entry, attrs);
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}
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static int UVERBS_HANDLER(MLX5_IB_METHOD_DM_MAP_OP_ADDR)(
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struct uverbs_attr_bundle *attrs)
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{
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struct ib_uobject *uobj = uverbs_attr_get_uobject(
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attrs, MLX5_IB_ATTR_DM_MAP_OP_ADDR_REQ_HANDLE);
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struct mlx5_ib_dev *dev = to_mdev(uobj->context->device);
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struct ib_dm *ibdm = uobj->object;
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struct mlx5_ib_dm_memic *dm = to_memic(ibdm);
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struct mlx5_ib_dm_op_entry *op_entry;
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int err;
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u8 op;
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err = uverbs_copy_from(&op, attrs, MLX5_IB_ATTR_DM_MAP_OP_ADDR_REQ_OP);
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if (err)
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return err;
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if (op >= BITS_PER_TYPE(u32))
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return -EOPNOTSUPP;
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if (!(MLX5_CAP_DEV_MEM(dev->mdev, memic_operations) & BIT(op)))
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return -EOPNOTSUPP;
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mutex_lock(&dm->ops_xa_lock);
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err = map_existing_op(dm, op, attrs);
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if (!err || err != -ENOENT)
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goto err_unlock;
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op_entry = kzalloc(sizeof(*op_entry), GFP_KERNEL);
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if (!op_entry)
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goto err_unlock;
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err = mlx5_cmd_alloc_memic_op(&dev->dm, dm->base.dev_addr, op,
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&op_entry->op_addr);
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if (err) {
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kfree(op_entry);
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goto err_unlock;
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}
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op_entry->op = op;
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op_entry->dm = dm;
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err = add_dm_mmap_entry(uobj->context, &op_entry->mentry,
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MLX5_IB_MMAP_TYPE_MEMIC_OP, dm->base.size,
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op_entry->op_addr & PAGE_MASK);
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if (err) {
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mlx5_cmd_dealloc_memic_op(&dev->dm, dm->base.dev_addr, op);
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kfree(op_entry);
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goto err_unlock;
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}
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/* From this point, entry will be freed by mmap_free */
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kref_get(&dm->ref);
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err = copy_op_to_user(op_entry, attrs);
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if (err)
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goto err_remove;
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err = xa_insert(&dm->ops, op, op_entry, GFP_KERNEL);
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if (err)
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goto err_remove;
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mutex_unlock(&dm->ops_xa_lock);
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return 0;
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err_remove:
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rdma_user_mmap_entry_remove(&op_entry->mentry.rdma_entry);
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err_unlock:
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mutex_unlock(&dm->ops_xa_lock);
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return err;
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}
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static struct ib_dm *handle_alloc_dm_memic(struct ib_ucontext *ctx,
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struct ib_dm_alloc_attr *attr,
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struct uverbs_attr_bundle *attrs)
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{
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struct mlx5_dm *dm_db = &to_mdev(ctx->device)->dm;
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struct mlx5_ib_dm_memic *dm;
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u64 start_offset;
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u16 page_idx;
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int err;
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u64 address;
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if (!MLX5_CAP_DEV_MEM(dm_db->dev, memic))
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return ERR_PTR(-EOPNOTSUPP);
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dm = kzalloc(sizeof(*dm), GFP_KERNEL);
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if (!dm)
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return ERR_PTR(-ENOMEM);
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dm->base.type = MLX5_IB_UAPI_DM_TYPE_MEMIC;
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dm->base.size = roundup(attr->length, MLX5_MEMIC_BASE_SIZE);
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dm->base.ibdm.device = ctx->device;
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kref_init(&dm->ref);
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xa_init(&dm->ops);
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mutex_init(&dm->ops_xa_lock);
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dm->req_length = attr->length;
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err = mlx5_cmd_alloc_memic(dm_db, &dm->base.dev_addr,
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dm->base.size, attr->alignment);
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if (err) {
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kfree(dm);
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return ERR_PTR(err);
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}
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address = dm->base.dev_addr & PAGE_MASK;
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err = add_dm_mmap_entry(ctx, &dm->mentry, MLX5_IB_MMAP_TYPE_MEMIC,
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dm->base.size, address);
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if (err) {
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mlx5_cmd_dealloc_memic(dm_db, dm->base.dev_addr, dm->base.size);
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kfree(dm);
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return ERR_PTR(err);
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}
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page_idx = dm->mentry.rdma_entry.start_pgoff & 0xFFFF;
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err = uverbs_copy_to(attrs, MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX,
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&page_idx, sizeof(page_idx));
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if (err)
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goto err_copy;
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start_offset = dm->base.dev_addr & ~PAGE_MASK;
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err = uverbs_copy_to(attrs,
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MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
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&start_offset, sizeof(start_offset));
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if (err)
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goto err_copy;
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return &dm->base.ibdm;
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err_copy:
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rdma_user_mmap_entry_remove(&dm->mentry.rdma_entry);
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return ERR_PTR(err);
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}
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static enum mlx5_sw_icm_type get_icm_type(int uapi_type)
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{
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switch (uapi_type) {
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case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
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return MLX5_SW_ICM_TYPE_HEADER_MODIFY;
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case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
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return MLX5_SW_ICM_TYPE_HEADER_MODIFY_PATTERN;
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case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
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default:
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return MLX5_SW_ICM_TYPE_STEERING;
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}
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}
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static struct ib_dm *handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
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struct ib_dm_alloc_attr *attr,
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struct uverbs_attr_bundle *attrs,
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int type)
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{
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struct mlx5_core_dev *dev = to_mdev(ctx->device)->mdev;
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enum mlx5_sw_icm_type icm_type;
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struct mlx5_ib_dm_icm *dm;
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u64 act_size;
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int err;
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if (!capable(CAP_SYS_RAWIO) || !capable(CAP_NET_RAW))
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return ERR_PTR(-EPERM);
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switch (type) {
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case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
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case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
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if (!(MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner) ||
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MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner) ||
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MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner_v2) ||
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MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner_v2)))
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return ERR_PTR(-EOPNOTSUPP);
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break;
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case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
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if (!MLX5_CAP_FLOWTABLE_NIC_RX(dev, sw_owner_v2) ||
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!MLX5_CAP_FLOWTABLE_NIC_TX(dev, sw_owner_v2))
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return ERR_PTR(-EOPNOTSUPP);
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break;
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default:
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return ERR_PTR(-EOPNOTSUPP);
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}
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dm = kzalloc(sizeof(*dm), GFP_KERNEL);
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if (!dm)
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return ERR_PTR(-ENOMEM);
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dm->base.type = type;
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dm->base.ibdm.device = ctx->device;
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/* Allocation size must a multiple of the basic block size
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* and a power of 2.
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*/
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act_size = round_up(attr->length, MLX5_SW_ICM_BLOCK_SIZE(dev));
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act_size = roundup_pow_of_two(act_size);
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dm->base.size = act_size;
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icm_type = get_icm_type(type);
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err = mlx5_dm_sw_icm_alloc(dev, icm_type, act_size, attr->alignment,
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to_mucontext(ctx)->devx_uid,
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&dm->base.dev_addr, &dm->obj_id);
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if (err)
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goto free;
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err = uverbs_copy_to(attrs, MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
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&dm->base.dev_addr, sizeof(dm->base.dev_addr));
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if (err) {
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mlx5_dm_sw_icm_dealloc(dev, icm_type, dm->base.size,
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to_mucontext(ctx)->devx_uid,
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dm->base.dev_addr, dm->obj_id);
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goto free;
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}
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return &dm->base.ibdm;
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free:
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kfree(dm);
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return ERR_PTR(err);
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}
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struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
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struct ib_ucontext *context,
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struct ib_dm_alloc_attr *attr,
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struct uverbs_attr_bundle *attrs)
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{
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enum mlx5_ib_uapi_dm_type type;
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int err;
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err = uverbs_get_const_default(&type, attrs,
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MLX5_IB_ATTR_ALLOC_DM_REQ_TYPE,
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MLX5_IB_UAPI_DM_TYPE_MEMIC);
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if (err)
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return ERR_PTR(err);
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mlx5_ib_dbg(to_mdev(ibdev), "alloc_dm req: dm_type=%d user_length=0x%llx log_alignment=%d\n",
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type, attr->length, attr->alignment);
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switch (type) {
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case MLX5_IB_UAPI_DM_TYPE_MEMIC:
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return handle_alloc_dm_memic(context, attr, attrs);
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case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
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case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
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case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
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return handle_alloc_dm_sw_icm(context, attr, attrs, type);
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default:
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return ERR_PTR(-EOPNOTSUPP);
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}
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}
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static void dm_memic_remove_ops(struct mlx5_ib_dm_memic *dm)
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{
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struct mlx5_ib_dm_op_entry *entry;
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unsigned long idx;
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mutex_lock(&dm->ops_xa_lock);
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xa_for_each(&dm->ops, idx, entry) {
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xa_erase(&dm->ops, idx);
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rdma_user_mmap_entry_remove(&entry->mentry.rdma_entry);
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}
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mutex_unlock(&dm->ops_xa_lock);
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}
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static void mlx5_dm_memic_dealloc(struct mlx5_ib_dm_memic *dm)
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{
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dm_memic_remove_ops(dm);
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rdma_user_mmap_entry_remove(&dm->mentry.rdma_entry);
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}
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static int mlx5_dm_icm_dealloc(struct mlx5_ib_ucontext *ctx,
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struct mlx5_ib_dm_icm *dm)
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{
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enum mlx5_sw_icm_type type = get_icm_type(dm->base.type);
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struct mlx5_core_dev *dev = to_mdev(dm->base.ibdm.device)->mdev;
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int err;
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err = mlx5_dm_sw_icm_dealloc(dev, type, dm->base.size, ctx->devx_uid,
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dm->base.dev_addr, dm->obj_id);
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if (!err)
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kfree(dm);
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return 0;
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}
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static int mlx5_ib_dealloc_dm(struct ib_dm *ibdm,
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struct uverbs_attr_bundle *attrs)
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{
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struct mlx5_ib_ucontext *ctx = rdma_udata_to_drv_context(
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&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
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struct mlx5_ib_dm *dm = to_mdm(ibdm);
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switch (dm->type) {
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case MLX5_IB_UAPI_DM_TYPE_MEMIC:
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mlx5_dm_memic_dealloc(to_memic(ibdm));
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return 0;
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case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
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case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
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case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM:
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return mlx5_dm_icm_dealloc(ctx, to_icm(ibdm));
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default:
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return -EOPNOTSUPP;
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}
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}
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static int UVERBS_HANDLER(MLX5_IB_METHOD_DM_QUERY)(
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struct uverbs_attr_bundle *attrs)
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{
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struct ib_dm *ibdm =
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uverbs_attr_get_obj(attrs, MLX5_IB_ATTR_QUERY_DM_REQ_HANDLE);
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struct mlx5_ib_dm *dm = to_mdm(ibdm);
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struct mlx5_ib_dm_memic *memic;
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u64 start_offset;
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u16 page_idx;
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int err;
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if (dm->type != MLX5_IB_UAPI_DM_TYPE_MEMIC)
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return -EOPNOTSUPP;
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memic = to_memic(ibdm);
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page_idx = memic->mentry.rdma_entry.start_pgoff & 0xFFFF;
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err = uverbs_copy_to(attrs, MLX5_IB_ATTR_QUERY_DM_RESP_PAGE_INDEX,
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&page_idx, sizeof(page_idx));
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if (err)
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return err;
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|
|
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start_offset = memic->base.dev_addr & ~PAGE_MASK;
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err = uverbs_copy_to(attrs, MLX5_IB_ATTR_QUERY_DM_RESP_START_OFFSET,
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&start_offset, sizeof(start_offset));
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if (err)
|
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return err;
|
|
|
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return uverbs_copy_to(attrs, MLX5_IB_ATTR_QUERY_DM_RESP_LENGTH,
|
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&memic->req_length,
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sizeof(memic->req_length));
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}
|
|
|
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void mlx5_ib_dm_mmap_free(struct mlx5_ib_dev *dev,
|
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struct mlx5_user_mmap_entry *mentry)
|
|
{
|
|
struct mlx5_ib_dm_op_entry *op_entry;
|
|
struct mlx5_ib_dm_memic *mdm;
|
|
|
|
switch (mentry->mmap_flag) {
|
|
case MLX5_IB_MMAP_TYPE_MEMIC:
|
|
mdm = container_of(mentry, struct mlx5_ib_dm_memic, mentry);
|
|
kref_put(&mdm->ref, mlx5_ib_dm_memic_free);
|
|
break;
|
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case MLX5_IB_MMAP_TYPE_MEMIC_OP:
|
|
op_entry = container_of(mentry, struct mlx5_ib_dm_op_entry,
|
|
mentry);
|
|
mdm = op_entry->dm;
|
|
mlx5_cmd_dealloc_memic_op(&dev->dm, mdm->base.dev_addr,
|
|
op_entry->op);
|
|
kfree(op_entry);
|
|
kref_put(&mdm->ref, mlx5_ib_dm_memic_free);
|
|
break;
|
|
default:
|
|
WARN_ON(true);
|
|
}
|
|
}
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DM_QUERY,
|
|
UVERBS_ATTR_IDR(MLX5_IB_ATTR_QUERY_DM_REQ_HANDLE, UVERBS_OBJECT_DM,
|
|
UVERBS_ACCESS_READ, UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_QUERY_DM_RESP_START_OFFSET,
|
|
UVERBS_ATTR_TYPE(u64), UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_QUERY_DM_RESP_PAGE_INDEX,
|
|
UVERBS_ATTR_TYPE(u16), UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_QUERY_DM_RESP_LENGTH,
|
|
UVERBS_ATTR_TYPE(u64), UA_MANDATORY));
|
|
|
|
ADD_UVERBS_ATTRIBUTES_SIMPLE(
|
|
mlx5_ib_dm, UVERBS_OBJECT_DM, UVERBS_METHOD_DM_ALLOC,
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
|
|
UVERBS_ATTR_TYPE(u64), UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX,
|
|
UVERBS_ATTR_TYPE(u16), UA_OPTIONAL),
|
|
UVERBS_ATTR_CONST_IN(MLX5_IB_ATTR_ALLOC_DM_REQ_TYPE,
|
|
enum mlx5_ib_uapi_dm_type, UA_OPTIONAL));
|
|
|
|
DECLARE_UVERBS_NAMED_METHOD(
|
|
MLX5_IB_METHOD_DM_MAP_OP_ADDR,
|
|
UVERBS_ATTR_IDR(MLX5_IB_ATTR_DM_MAP_OP_ADDR_REQ_HANDLE,
|
|
UVERBS_OBJECT_DM,
|
|
UVERBS_ACCESS_READ,
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DM_MAP_OP_ADDR_REQ_OP,
|
|
UVERBS_ATTR_TYPE(u8),
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DM_MAP_OP_ADDR_RESP_START_OFFSET,
|
|
UVERBS_ATTR_TYPE(u64),
|
|
UA_MANDATORY),
|
|
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DM_MAP_OP_ADDR_RESP_PAGE_INDEX,
|
|
UVERBS_ATTR_TYPE(u16),
|
|
UA_OPTIONAL));
|
|
|
|
DECLARE_UVERBS_GLOBAL_METHODS(UVERBS_OBJECT_DM,
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DM_MAP_OP_ADDR),
|
|
&UVERBS_METHOD(MLX5_IB_METHOD_DM_QUERY));
|
|
|
|
const struct uapi_definition mlx5_ib_dm_defs[] = {
|
|
UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_DM, &mlx5_ib_dm),
|
|
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_DM),
|
|
{},
|
|
};
|
|
|
|
const struct ib_device_ops mlx5_ib_dev_dm_ops = {
|
|
.alloc_dm = mlx5_ib_alloc_dm,
|
|
.dealloc_dm = mlx5_ib_dealloc_dm,
|
|
.reg_dm_mr = mlx5_ib_reg_dm_mr,
|
|
};
|