mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
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ef59a0da4d
Added missing fs.h to fix build error. Added debug info for root user only. Added alternative header path for x86 build. Fixed NvSciIpcEndpointMapVuid() API. remove mutex except for SET_DB IOCTL (lockless for read operation). Added more ioctl commands. - NVSCIIPC_IOCTL_GET_DB_BY_NAME - NVSCIIPC_IOCTL_GET_DB_BY_VUID JIRA NVIPC-227 Change-Id: I95fc6f9fff36c9c1df999b11109236b1b3481d62 Signed-off-by: joshuac <joshuac@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2755193 Reviewed-by: Kurt Yi <kyi@nvidia.com> GVS: Gerrit_Virtual_Submit
102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/*
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* Copyright (c) 2019-2021, NVIDIA CORPORATION. All rights reserved.
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*
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* This header is BSD licensed so anyone can use the definitions to implement
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* compatible drivers/servers.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of NVIDIA CORPORATION nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __NVSCIIPC_IOCTL_H__
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#define __NVSCIIPC_IOCTL_H__
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#include <linux/ioctl.h>
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#define NVSCIIPC_MAX_EP_NAME 64U
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#define NVSCIIPC_MAX_RDMA_NAME 64U
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#define NVSCIIPC_MAX_IP_NAME 16U
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struct nvsciipc_config_entry {
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/* endpoint name */
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char ep_name[NVSCIIPC_MAX_EP_NAME];
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/* node name for shm/sem */
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char dev_name[NVSCIIPC_MAX_EP_NAME];
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uint32_t backend; /* backend type */
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uint32_t nframes; /* frame count */
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uint32_t frame_size; /* frame size */
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/* ep id for inter-Proc/Thread
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* queue id for inter-VM
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* dev id for inter-Chip
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*/
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uint32_t id;
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uint64_t vuid; /* VM-wide unique id */
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char rdma_dev_name[NVSCIIPC_MAX_RDMA_NAME];
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char remote_ip[NVSCIIPC_MAX_IP_NAME];
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uint32_t remote_port;
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uint32_t local_port;
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uint32_t reserved;
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};
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struct nvsciipc_db {
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int num_eps;
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struct nvsciipc_config_entry **entry;
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};
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struct nvsciipc_get_vuid {
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char ep_name[NVSCIIPC_MAX_EP_NAME];
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uint64_t vuid;
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};
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struct nvsciipc_get_db_by_name {
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char ep_name[NVSCIIPC_MAX_EP_NAME];
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struct nvsciipc_config_entry entry;
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uint32_t idx;
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};
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struct nvsciipc_get_db_by_vuid {
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uint64_t vuid;
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struct nvsciipc_config_entry entry;
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uint32_t idx;
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};
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/* IOCTL magic number - seen available in ioctl-number.txt*/
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#define NVSCIIPC_IOCTL_MAGIC 0xC3
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#define NVSCIIPC_IOCTL_SET_DB \
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_IOW(NVSCIIPC_IOCTL_MAGIC, 1, struct nvsciipc_db)
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#define NVSCIIPC_IOCTL_GET_VUID \
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_IOWR(NVSCIIPC_IOCTL_MAGIC, 2, struct nvsciipc_get_vuid)
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#define NVSCIIPC_IOCTL_GET_DB_BY_NAME \
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_IOWR(NVSCIIPC_IOCTL_MAGIC, 3, struct nvsciipc_get_db_by_name)
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#define NVSCIIPC_IOCTL_GET_DB_BY_VUID \
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_IOWR(NVSCIIPC_IOCTL_MAGIC, 4, struct nvsciipc_get_db_by_vuid)
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#define NVSCIIPC_IOCTL_NUMBER_MAX 4
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#endif /* __NVSCIIPC_IOCTL_H__ */
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