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https://github.com/liulingxi2/pcihw-test
pcie controller and register test from nvme/net/usb
https://github.com/liulingxi2/pcihw-test
linux-kernel os qemu-system-aarch64
Last synced: about 2 months ago
JSON representation
pcie controller and register test from nvme/net/usb
- Host: GitHub
- URL: https://github.com/liulingxi2/pcihw-test
- Owner: LiuLingXi2
- License: other
- Created: 2024-11-19T12:57:40.000Z (about 2 months ago)
- Default Branch: main
- Last Pushed: 2024-11-19T17:43:09.000Z (about 2 months ago)
- Last Synced: 2024-11-19T17:47:50.456Z (about 2 months ago)
- Topics: linux-kernel, os, qemu-system-aarch64
- Language: Makefile
- Homepage:
- Size: 13.2 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# pcihw-test
## nvme architect
```shell
/ # lspci -v
00:00.0 Class 0600: Device 1b36:0008
00:01.0 Class 0200: Device 1af4:1000
00:02.0 Class 0c03: Device 1b36:000d (rev 01)
00:03.0 Class 0604: Device 1b36:0001
01:04.0 Class 0108: Device 1b36:0010 (rev 02)
01:05.0 Class 0108: Device 1b36:0010 (rev 02)
01:04.0 Class 0108: Device 1b36:0010 (rev 02) (prog-if 02)
Subsystem: Device 1af4:1100
Flags: bus master, fast devsel, latency 0, IRQ 49, NUMA node 0
Memory at 10000000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] MSI-X: Enable+ Count=65 Masked-
Capabilities: [80] Express Endpoint, MSI 00
Capabilities: [60] Power Management version 3
Kernel driver in use: nvme
01:05.0 Class 0108: Device 1b36:0010 (rev 02) (prog-if 02)
Subsystem: Device 1af4:1100
Flags: bus master, fast devsel, latency 0, IRQ 55, NUMA node 0
Memory at 10004000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] MSI-X: Enable+ Count=65 Masked-
Capabilities: [80] Express Endpoint, MSI 00
Capabilities: [60] Power Management version 3
Kernel driver in use: nvme
```
It is clear from the above that the nvme enable msi-x interrupt, and we can look the mis-x number by its mechanism from gic by default(may be spi(>8192))
## busybox
## pciutils
The lspci tool belong to busybox is so simple, so we need to have the protozoa lspci by compile pciutils
github: https://github.com/pciutils/pciutils
compile step:
- modify Makefile:
```shell
# Host OS and release (override if you are cross-compiling)
HOST=arm-linux
RELEASE=
CROSS_COMPILE=aarch64-linux-gnu-
# Support for compressed pci.ids (yes/no, default: detect)
ZLIB=no
# Support for resolving ID's by DNS (yes/no, default: detect)
DNS=no
```
- make -j$(nproc)
- if the default file type is dynamic shared, but we need static, so we may add the compila flags: CFLAGS="-static" LDFLAGS="-static".(i can not find the LDFLAGS, so simply add the compile flags mandatory)