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// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
/*
* Copyright (c) 2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved
*/
#include <infiniband/cmd_write.h>
int ibv_cmd_alloc_dmah(struct ibv_context *ctx,
struct verbs_dmah *dmah,
struct ibv_dmah_init_attr *attr)
{
DECLARE_COMMAND_BUFFER(cmdb, UVERBS_OBJECT_DMAH, UVERBS_METHOD_DMAH_ALLOC, 4);
struct ib_uverbs_attr *handle;
int ret;
handle = fill_attr_out_obj(cmdb, UVERBS_ATTR_ALLOC_DMAH_HANDLE);
if (attr->comp_mask & IBV_DMAH_INIT_ATTR_MASK_CPU_ID)
fill_attr_in_uint32(cmdb, UVERBS_ATTR_ALLOC_DMAH_CPU_ID,
attr->cpu_id);
if (attr->comp_mask & IBV_DMAH_INIT_ATTR_MASK_TPH_MEM_TYPE)
fill_attr_in_enum(cmdb, UVERBS_ATTR_ALLOC_DMAH_TPH_MEM_TYPE,
attr->tph_mem_type, NULL, 0);
if (attr->comp_mask & IBV_DMAH_INIT_ATTR_MASK_PH)
fill_attr_in(cmdb, UVERBS_ATTR_ALLOC_DMAH_PH,
&attr->ph, sizeof(attr->ph));
ret = execute_ioctl(ctx, cmdb);
if (ret)
return errno;
dmah->handle = read_attr_obj(UVERBS_ATTR_ALLOC_DMAH_HANDLE, handle);
dmah->dmah.context = ctx;
return 0;
}
int ibv_cmd_free_dmah(struct verbs_dmah *dmah)
{
DECLARE_COMMAND_BUFFER(cmdb, UVERBS_OBJECT_DMAH, UVERBS_METHOD_DMAH_FREE, 1);
int ret;
fill_attr_in_obj(cmdb, UVERBS_ATTR_FREE_DMA_HANDLE, dmah->handle);
ret = execute_ioctl(dmah->dmah.context, cmdb);
if (verbs_is_destroy_err(&ret))
return ret;
return 0;
}
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