1NVME-FW-DOWNLOAD(1)               NVMe Manual              NVME-FW-DOWNLOAD(1)
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NAME

6       nvme-fw-download - Download all or a portion of an nvme firmware image.
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SYNOPSIS

9       nvme fw-download <device> [--fw=<firmware-file> | -f <firmware-file>]
10                           [--xfer=<transfer-size> | -x <transfer-size>]
11                           [--offset=<offset> | -o <offset>]
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DESCRIPTION

14       The Firmware Image Download command is used to download all or a
15       portion of the firmware image for a future update to the controller.
16       The Firmware Image Download command may be submitted while other
17       commands on the Admin Submission Queue or I/O Submission Queues are
18       outstanding. The Firmware Image Download command copies the new
19       firmware image (in whole or in part) to the controller.
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21       The firmware image may be constructed of multiple pieces that are
22       individually downloaded with separate Firmware Image Download commands.
23       Each Firmware Image Download command includes a Dword Offset and Number
24       of Dwords that specify a Dword range. The host software shall ensure
25       that firmware pieces do not have Dword ranges that overlap. Firmware
26       portions may be submitted out of order to the controller.
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28       The new firmware image is not applied as part of the Firmware Image
29       Download command. It is applied following a reset, where the image to
30       apply and the firmware slot it should be committed to is specified with
31       the Firmware Commit command (nvme fw-commit <args>).
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OPTIONS

34       -f <firmware-file>, --fw=<firmeware-file>
35           Required argument. This specifies the path to the device’s firmware
36           file on your system that will be read by the program and sent to
37           the device.
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39       -x <transfer-size>, --xfer=<transfer-size>
40           This specifies the size to split each transfer. This is useful if
41           the device has a max transfer size requirement for firmware. It
42           defaults to 4k.
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44       -o <offset>, --offset=<offset>
45           This specifies the starting offset in dwords. This is really only
46           useful if your firmware is split in multiple files; otherwise the
47           offset starts at zero and automatically adjusts based on the xfer
48           size given.
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EXAMPLES

51       ·   Transfer a firmware size 128KiB at a time:
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53               # nvme fw-download /dev/nvme0 --fw=/path/to/nvme.fw --xfer=0x20000
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NVME

56       Part of the nvme-user suite
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60NVMe                              01/07/2020               NVME-FW-DOWNLOAD(1)