From f26f66d866ba1a9f3204e6fdfe2b07e67b5492ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 10 Apr 2024 21:41:32 +0200 Subject: Adding upstream version 2.8. Signed-off-by: Daniel Baumann --- Documentation/nvme-get-property.html | 874 +++++++++++++++++++++++++++++++++++ 1 file changed, 874 insertions(+) create mode 100644 Documentation/nvme-get-property.html (limited to 'Documentation/nvme-get-property.html') diff --git a/Documentation/nvme-get-property.html b/Documentation/nvme-get-property.html new file mode 100644 index 0000000..f19907c --- /dev/null +++ b/Documentation/nvme-get-property.html @@ -0,0 +1,874 @@ + + + + + + +nvme-get-property(1) + + + + + +
+
+

SYNOPSIS

+
+
+
nvme get-property <device> [--offset=<offset> | -O <offset>]
+                        [--human-readable | -H]
+                        [--output-format=<fmt> | -o <fmt>] [--verbose | -v]
+
+
+
+
+
+

DESCRIPTION

+
+

Reads and shows the defined NVMe controller property for NVMe over Fabric.

+
+
+
+

OPTIONS

+
+
+
+-O +
+
+--offset +
+
+

+ The offset of the property. One of CAP=0x0, VS=0x8, CC=0x14, CSTS=0x1c, NSSR=0x20 +

+
+
+-H +
+
+

+--human-readable: + Show the fields packed in the property +

+
+
+-o <fmt> +
+
+--output-format=<fmt> +
+
+

+ Set the reporting format to normal, json or binary. Only one + output format can be used at a time. +

+
+
+-v +
+
+--verbose +
+
+

+ Increase the information detail in the output. +

+
+
+
+
+
+

EXAMPLES

+
+
    +
  • +

    +The following will run the get-property command with offset 0 +

    +
    +
    +
    # nvme get-property /dev/nvme0 --offset=0x0 --human-readable
    +
    +
    • +
+
+
+
+

BUGS

+
+

Currently the CAP value is truncated to 32 bits due to a limitation in +the ioctl interface.

+

In a recent enough kernel, the 64 bit value is shown in kernel traces.

+
    +
  • +

    +First enable traces by this command +

    +
    +
    +
    # echo 1 > /sys/kernel/debug/tracing/events/nvme/enable
    +
    +
    • +
  • +

    +Then look for NVMe Fabrics command (0x7f) at trace +

    +
    +
    +
    /sys/kernel/debug/tracing/trace
    +
    +
    • +
+
+
+
+

NVME

+
+

Part of the nvme-user suite

+
+
+
+
+ + + -- cgit v1.2.3