Files
linux-nv-oot/include/uapi/linux/nvsciipc_ioctl.h
Joshua Cha bb2c8b1fc4 nvsciipc: increase inter-process channel count
default DriveOS inter-process endpoint count is about 1300 for now.
DriveAV requirement needs 8192 inter-process channels
(=16384 endpoints) except for DriveOS system usage.
Hence increased the number of inter-process endpoints by 2048
more in considering margin.

Bug 5224327

Change-Id: I47f5a67f9ece917ed5fe873be2e188f128d63961
Signed-off-by: Joshua Cha <joshuac@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3361956
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Simon Je <sje@nvidia.com>
2025-07-24 10:20:35 +00:00

134 lines
3.2 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: Copyright (c) 2019-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#ifndef __NVSCIIPC_IOCTL_H__
#define __NVSCIIPC_IOCTL_H__
#include <linux/ioctl.h>
/*
* inter-thread: 2000
* inter-process: 16384 + 2048
* 16384 : reserved for DriveAV/customer
* 2048 : reserved for DriveOS.
* inter-vm: 512
* inter-chip-pcie: 32
*/
#define NVSCIIPC_MAX_EP_COUNT 21040
#define NVSCIIPC_MAX_EP_NAME 64U
#define NVSCIIPC_MAX_RDMA_NAME 64U
#define NVSCIIPC_MAX_IP_NAME 16U
#define NVSCIIPC_EP_RESERVE 1U
#define NVSCIIPC_EP_RELEASE 0U
struct nvsciipc_config_entry {
/* endpoint name */
char ep_name[NVSCIIPC_MAX_EP_NAME];
/* node name for shm/sem */
char dev_name[NVSCIIPC_MAX_EP_NAME];
uint32_t backend; /* backend type */
uint32_t nframes; /* frame count */
uint32_t frame_size; /* frame size */
/* ep id for inter-Proc/Thread
* queue id for inter-VM
* dev id for inter-Chip
*/
uint32_t id;
uint64_t vuid; /* VM-wide unique id */
char rdma_dev_name[NVSCIIPC_MAX_RDMA_NAME];
char remote_ip[NVSCIIPC_MAX_IP_NAME];
uint32_t remote_port;
uint32_t local_port;
uint32_t peer_vmid;
uint32_t noti_type;
uint32_t uid;
};
struct nvsciipc_db {
int num_eps;
struct nvsciipc_config_entry **entry;
};
struct nvsciipc_get_vuid {
char ep_name[NVSCIIPC_MAX_EP_NAME];
uint64_t vuid;
};
struct nvsciipc_get_db_by_name {
char ep_name[NVSCIIPC_MAX_EP_NAME];
struct nvsciipc_config_entry entry;
uint32_t idx;
};
struct nvsciipc_get_db_by_vuid {
uint64_t vuid;
struct nvsciipc_config_entry entry;
uint32_t idx;
};
struct nvsciipc_get_db_by_idx {
struct nvsciipc_config_entry entry;
uint32_t idx;
};
struct nvsciipc_validate_auth_token {
uint32_t auth_token;
uint64_t local_vuid;
};
/* NvSciIpcTopoId type */
struct nvsciipc_topoid {
uint32_t socid;
uint32_t vmid;
};
struct nvsciipc_map_vuid {
uint64_t vuid;
struct nvsciipc_topoid peer_topoid;
uint64_t peer_vuid;
};
struct nvsciipc_reserve_ep {
char ep_name[NVSCIIPC_MAX_EP_NAME];
uint32_t action;
};
/* IOCTL magic number - seen available in ioctl-number.txt*/
#define NVSCIIPC_IOCTL_MAGIC 0xC3
#define NVSCIIPC_IOCTL_SET_DB \
_IOW(NVSCIIPC_IOCTL_MAGIC, 1, struct nvsciipc_db)
#define NVSCIIPC_IOCTL_GET_VUID \
_IOWR(NVSCIIPC_IOCTL_MAGIC, 2, struct nvsciipc_get_vuid)
#define NVSCIIPC_IOCTL_GET_DB_BY_NAME \
_IOWR(NVSCIIPC_IOCTL_MAGIC, 3, struct nvsciipc_get_db_by_name)
#define NVSCIIPC_IOCTL_GET_DB_BY_VUID \
_IOWR(NVSCIIPC_IOCTL_MAGIC, 4, struct nvsciipc_get_db_by_vuid)
#define NVSCIIPC_IOCTL_GET_DB_SIZE \
_IOR(NVSCIIPC_IOCTL_MAGIC, 5, uint32_t)
#define NVSCIIPC_IOCTL_VALIDATE_AUTH_TOKEN \
_IOWR(NVSCIIPC_IOCTL_MAGIC, 6, struct nvsciipc_validate_auth_token)
#define NVSCIIPC_IOCTL_MAP_VUID \
_IOWR(NVSCIIPC_IOCTL_MAGIC, 7, struct nvsciipc_map_vuid)
#define NVSCIIPC_IOCTL_GET_VMID \
_IOWR(NVSCIIPC_IOCTL_MAGIC, 8, uint32_t)
#define NVSCIIPC_IOCTL_GET_DB_BY_IDX \
_IOWR(NVSCIIPC_IOCTL_MAGIC, 9, struct nvsciipc_get_db_by_idx)
#define NVSCIIPC_IOCTL_RESERVE_EP \
_IOWR(NVSCIIPC_IOCTL_MAGIC, 10, struct nvsciipc_reserve_ep)
#define NVSCIIPC_IOCTL_NUMBER_MAX 10
#endif /* __NVSCIIPC_IOCTL_H__ */