---
name: "devlink-region"
section: "8"
platform: "linux"
package: "iproute2"
version: "7.3.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/devlink-region"
---

# devlink-region(8)

devlink address region access

## NAME

devlink-region - devlink address region access

## SYNOPSIS

**devlink** \[ *OPTIONS* \] **region**  { *COMMAND* \|  **help** }

*OPTIONS* := {  **-V**\[*ersion*\] \| **-n**\[*no-nice-names*\] }

**devlink region show** \[ *DEV/REGION* \]

**devlink region new***DEV/REGION* **\[**  **snapshot***SNAPSHOT\_ID* **\]**

**devlink region del***DEV/REGION* **snapshot***SNAPSHOT\_ID*

**devlink region dump***DEV/REGION* **snapshot***SNAPSHOT\_ID*

**devlink region read***DEV/REGION* **\[**  **snapshot***SNAPSHOT\_ID* **\]** **address***ADDRESS* **length***LENGTH*

**devlink region help**

## DESCRIPTION

### devlink region show - Show all supported address regions names, snapshots and sizes

*DEV/REGION* - specifies the devlink device and address-region to query.

### devlink region new - Create a snapshot specified by address-region name and snapshot ID

*DEV/REGION* - specifies the devlink device and address-region to snapshot

snapshot *SNAPSHOT\_ID* - optionally specifies the snapshot ID to assign. If not specified, devlink will assign a unique ID to the snapshot.

### devlink region del - Delete a snapshot specified by address-region name and snapshot ID

*DEV/REGION* - specifies the devlink device and address-region to delete the snapshot from

snapshot *SNAPSHOT\_ID* - specifies the snapshot ID to delete

### devlink region dump - Dump all the available data from a region or from snapshot of a region

*DEV/REGION* - specifies the device and address-region to dump from.

snapshot *SNAPSHOT\_ID* - specifies the snapshot-id of the region to dump.

### devlink region read - Read from a specific region address for a given length

*DEV/REGION* - specifies the device and address-region to read from.

snapshot *SNAPSHOT\_ID* - specifies the snapshot-id of the region to read.

address *ADDRESS* - specifies the address to read from.

length *LENGTH* - specifies the length of data to read.

## EXAMPLES

devlink region show

List available address regions and snapshot.

devlink region new pci/0000:00:05.0/cr-space

Create a new snapshot from cr-space address region from device pci/0000:00:05.0.

devlink region del pci/0000:00:05.0/cr-space snapshot 1

Delete snapshot id 1 from cr-space address region from device pci/0000:00:05.0.

devlink region dump pci/0000:00:05.0/cr-space snapshot 1

Dump the snapshot taken from cr-space address region with ID 1

devlink region read pci/0000:00:05.0/cr-space snapshot 1 address 0x10 length 16

Read from address 0x10, 16 Bytes of snapshot ID 1 taken from cr-space address region

## SEE ALSO

[**devlink**(8)](/devlink/8.md), [**devlink-dev**(8)](/devlink-dev/8.md), [**devlink-port**(8)](/devlink-port/8.md), [**devlink-monitor**(8)](/devlink-monitor/8.md),\

## AUTHOR

Alex Vesker \<valex@mellanox.com\>