From: Bin Meng Date: Tue, 22 Jun 2021 13:16:22 +0000 (+0800) Subject: doc: develop: Convert README.nvme to reST X-Git-Url: http://git.dujemihanovic.xyz/html/static/gitweb.css?a=commitdiff_plain;h=bf2a28356e1cd48597f50ad351d3e6806c468a56;p=u-boot.git doc: develop: Convert README.nvme to reST This converts the existing README.nvme to reST, and puts it under the develop/driver-model/ directory. Signed-off-by: Bin Meng --- diff --git a/doc/develop/driver-model/index.rst b/doc/develop/driver-model/index.rst index 10a76256b0..7366ef818c 100644 --- a/doc/develop/driver-model/index.rst +++ b/doc/develop/driver-model/index.rst @@ -19,6 +19,7 @@ subsystems i2c-howto livetree migration + nvme of-plat pci-info pmic-framework diff --git a/doc/README.nvme b/doc/develop/driver-model/nvme.rst similarity index 88% rename from doc/README.nvme rename to doc/develop/driver-model/nvme.rst index e8f9be149e..736c0a063d 100644 --- a/doc/README.nvme +++ b/doc/develop/driver-model/nvme.rst @@ -1,11 +1,13 @@ -# SPDX-License-Identifier: GPL-2.0+ -# -# Copyright (C) 2017 NXP Semiconductors -# Copyright (C) 2017 Bin Meng +.. SPDX-License-Identifier: GPL-2.0+ +.. Copyright (C) 2017 NXP Semiconductors +.. Copyright (C) 2017 Bin Meng -What is NVMe +NVMe Support ============ +What is NVMe +------------ + NVM Express (NVMe) is a register level interface that allows host software to communicate with a non-volatile memory subsystem. This interface is optimized for enterprise and client solid state drives, typically attached to the PCI @@ -48,6 +50,8 @@ identified. To list all of the NVMe hard disks, try: +.. code-block:: none + => nvme info Device 0: Vendor: 0x8086 Rev: 8DV10131 Prod: CVFT535600LS400BGN Type: Hard Disk @@ -55,10 +59,14 @@ To list all of the NVMe hard disks, try: and print out detailed information for controller and namespaces via: +.. code-block:: none + => nvme detail Raw block read/write to can be done via the 'nvme read/write' commands: +.. code-block:: none + => nvme read a0000000 0 11000 => tftp 80000000 /tftpboot/kernel.itb @@ -66,6 +74,8 @@ Raw block read/write to can be done via the 'nvme read/write' commands: Of course, file system command can be used on the NVMe hard disk as well: +.. code-block:: none + => fatls nvme 0:1 32376967 kernel.itb 22929408 100m @@ -81,4 +91,7 @@ QEMU supports NVMe emulation and we can test NVMe driver with QEMU x86 running U-Boot. Please see README.x86 for how to build u-boot.rom image for QEMU x86. Example command line to call QEMU x86 below with emulated NVMe device: -$ ./qemu-system-i386 -drive file=nvme.img,if=none,id=drv0 -device nvme,drive=drv0,serial=QEMUNVME0001 -bios u-boot.rom + +.. code-block:: bash + + $ ./qemu-system-i386 -drive file=nvme.img,if=none,id=drv0 -device nvme,drive=drv0,serial=QEMUNVME0001 -bios u-boot.rom