ttkmd_if/
error.rs

1// SPDX-FileCopyrightText: © 2023 Tenstorrent Inc.
2// SPDX-License-Identifier: Apache-2.0
3
4use nix::errno::Errno;
5use thiserror::Error;
6
7#[derive(Error, Debug)]
8pub enum CfgFailType {
9    #[error("Nix error: {0}")]
10    Nix(#[from] nix::Error),
11
12    #[error("Size mismiatch: recieved {0} bytes")]
13    SizeMismatch(usize),
14}
15
16#[derive(Error, Debug)]
17pub enum PciOpenError {
18    #[error("Failed to open device /dev/tenstorrent/{id}: {source}")]
19    DeviceOpenFailed { id: usize, source: std::io::Error },
20
21    #[error("Failed to recognize id for device /dev/tenstorrent/{pci_id}: {device_id:x}")]
22    UnrecognizedDeviceId { pci_id: usize, device_id: u16 },
23
24    #[error("ioctl {name} failed for device {id} with: {source}")]
25    IoctlError {
26        name: String,
27        id: usize,
28        source: nix::Error,
29    },
30
31    #[error("Failed to map {name} from device {id}")]
32    BarMappingError { name: String, id: usize },
33
34    #[error("When creating anon buffer {buffer} for device {device_id} hit error {source}")]
35    FakeMmapFailed {
36        buffer: String,
37        device_id: usize,
38        source: std::io::Error,
39    },
40}
41
42#[derive(Error, Debug)]
43pub enum PciError {
44    #[error("DMA buffer mapping failed for device {id} with error {source}")]
45    DmaBufferMappingFailed { id: usize, source: std::io::Error },
46
47    #[error("DMA for device {id} is not configured")]
48    DmaNotConfigured { id: usize },
49
50    #[error("DMA buffer allocation on device {id} failed ({size} bytes) with error {err}")]
51    DmaAllocationFailed { id: usize, size: u32, err: Errno },
52
53    #[error("On device {id} tried to use 64-bit DMA, but ARC fw does not support it")]
54    No64bitDma { id: usize },
55
56    #[error("On device {id} tried to write {size} bytes, but DMA only allows a max of 28 bits")]
57    DmaTooLarge { id: usize, size: usize },
58
59    #[error("Read 0xffffffff from ARC scratch[6]: you should reset the board.")]
60    BrokenConnection,
61
62    #[error("Failed to read from device {id} config space[offset: {offset}, size: {size}]; Failed with {source}")]
63    CfgReadFailed {
64        id: usize,
65        offset: usize,
66        size: usize,
67
68        source: CfgFailType,
69    },
70
71    #[error("Failed to write into device {id} config space[offset: {offset}, size: {size}]; Failed with {source}")]
72    CfgWriteFailed {
73        id: usize,
74        offset: usize,
75        size: usize,
76
77        source: CfgFailType,
78    },
79
80    #[error("Tried to access tlb {id} which is out of range")]
81    TlbOutOfRange { id: usize },
82
83    #[error("Failed to reserve tlb for NOC IO; {0}")]
84    TlbAllocationError(String),
85
86    #[error("Ioctl failed with {0}")]
87    IoctlError(Errno),
88
89    #[error("During PciDevice initialization the PCI bar could not be mapped")]
90    BarUnmapped,
91
92    #[error("{0}")]
93    DeviceOpenError(#[from] PciOpenError),
94}
ttkmd_if/error.rs

ttkmd_if/
error.rs
