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author | Tom Rini <trini@konsulko.com> | 2021-06-23 08:46:26 -0400 |
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committer | Tom Rini <trini@konsulko.com> | 2021-06-23 08:46:26 -0400 |
commit | fcf3981161140d265b873a5b609b8867328dc9dc (patch) | |
tree | 5542a322551d604c1f0ba5ff910984480b57ec7c /doc | |
parent | c3a095d1ce16c4a416d831223e10dd95c15f3780 (diff) | |
parent | f68d5a66cd53a238d64d79cdd330b4dce17c7197 (diff) | |
download | u-boot-WIP/23Jun2021.zip u-boot-WIP/23Jun2021.tar.gz u-boot-WIP/23Jun2021.tar.bz2 |
Merge https://source.denx.de/u-boot/custodians/u-boot-x86WIP/23Jun2021
- x86: Discard .note.gnu.property sections
- nvme: Skip block device creation for inactive namespaces
- nvme: Convert NVMe doc to reST, and various minor fixes
Diffstat (limited to 'doc')
-rw-r--r-- | doc/develop/driver-model/index.rst | 1 | ||||
-rw-r--r-- | doc/develop/driver-model/nvme.rst (renamed from doc/README.nvme) | 25 |
2 files changed, 20 insertions, 6 deletions
diff --git a/doc/develop/driver-model/index.rst b/doc/develop/driver-model/index.rst index 10a7625..7366ef8 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 index e8f9be1..736c0a0 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 <bmeng.cn@gmail.com> +.. SPDX-License-Identifier: GPL-2.0+ +.. Copyright (C) 2017 NXP Semiconductors +.. Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com> -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 |