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| author | Yijie Yang <yijie.yang@oss.qualcomm.com> | 2026-08-11 16:46:47 +0800 |
|---|---|---|
| committer | Rob Herring (Arm) <robh@kernel.org> | 2026-08-15 15:46:52 -0500 |
| commit | e1c13aed4a1641550e8c9518c96f016e1d52d09b (patch) | |
| tree | 61c2297688373db165cc857b7c7adcb147a5c419 /Documentation/ABI/testing/sysfs-block-rnbd | |
| download | linux-stable-e1c13aed4a1641550e8c9518c96f016e1d52d09b.tar.gz linux-stable-e1c13aed4a1641550e8c9518c96f016e1d52d09b.zip | |
dt-bindings: interconnect: qcom-bwmon: Add Maili cpu-bwmon compatiblegrafted
Add the Qualcomm Maili SoC compatible string for the CPU bandwidth
monitor (BWMONv4). This falls back to the sdm845-bwmon compatible,
consistent with the existing pattern used by other recent SoCs such as
sm8750 and kaanapali.
Signed-off-by: Yijie Yang <yijie.yang@oss.qualcomm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Link: https://patch.msgid.link/20260811-bwmon-v2-1-80f7f150ab9e@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-block-rnbd')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-block-rnbd | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-block-rnbd b/Documentation/ABI/testing/sysfs-block-rnbd new file mode 100644 index 000000000..80b420b5d --- /dev/null +++ b/Documentation/ABI/testing/sysfs-block-rnbd @@ -0,0 +1,64 @@ +What: /sys/block/rnbd<N>/rnbd/unmap_device +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> +Description: To unmap a volume, "normal" or "force" has to be written to: + /sys/block/rnbd<N>/rnbd/unmap_device + + When "normal" is used, the operation will fail with EBUSY if any process + is using the device. When "force" is used, the device is also unmapped + when device is in use. All I/Os that are in progress will fail. + + Example:: + + # echo "normal" > /sys/block/rnbd0/rnbd/unmap_device + +What: /sys/block/rnbd<N>/rnbd/state +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> +Description: The file contains the current state of the block device. The state file + returns "open" when the device is successfully mapped from the server + and accepting I/O requests. When the connection to the server gets + disconnected in case of an error (e.g. link failure), the state file + returns "closed" and all I/O requests submitted to it will fail with -EIO. + +What: /sys/block/rnbd<N>/rnbd/session +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> +Description: RNBD uses RTRS session to transport the data between client and + server. The entry "session" contains the name of the session, that + was used to establish the RTRS session. It's the same name that + was passed as server parameter to the map_device entry. + +What: /sys/block/rnbd<N>/rnbd/mapping_path +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> +Description: Contains the path that was passed as "device_path" to the map_device + operation. + +What: /sys/block/rnbd<N>/rnbd/access_mode +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> +Description: Contains the device access mode: ro, rw or migration. + +What: /sys/block/rnbd<N>/rnbd/resize +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> +Description: Write the number of sectors to change the size of the disk. + +What: /sys/block/rnbd<N>/rnbd/remap_device +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> +Description: Remap the disconnected device if the session is not destroyed yet. + +What: /sys/block/rnbd<N>/rnbd/nr_poll_queues +Date: Feb 2020 +KernelVersion: 5.7 +Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com> +Description: Contains the number of poll-mode queues |
