1349a733cf
This commit adds a storage driver that supports the Universal Flash Storage Host Controller Interface (UFSHCI) on FreeBSD. Universal Flash Storage (UFS) is a flash-based mobile storage device that replaces eMMC, aiming for high performance with low power. The UFS Host Controller Interface (UFSHCI) is the host side controller and connects UFS device to a system bus, such as PCIe. The code targets the latest standards: - UFS 4.1: https://www.jedec.org/standards-documents/docs/jesd220g - UFSHCI 4.1: https://www.jedec.org/standards-documents/docs/jesd223f The ufshci(4) driver implements controller/device initialization, interrupt, single-doorbell(SDB) queue based IO requests. Support for multi-queue (MCQ) IO requests is planned for a later commit. Implemented features: - PCIe bus support - legacy(INTx) Interrupt Handling - UIC command support - UTP Transfer Request (UTR) support - UTP Task Management Request (UTMR) support - single doorbell queue (SDB) with multiple queue depth - SCSI command set support - sysctl Work in progress: - multi-Circular Queue (per-CPU IO queues) - MSI-X interrupt Support - write booster - write Protect - Host Performance Booster (HPB) - interrupt aggregation - ARM based system bus support - ufs-utils port Tests were performed on QEMU and an Intel-based laptop. Since QEMU has an emulated UFS device, I tested on QEMU. How to test on QEMU: 1. Run QEMU $ qemu-system-x86_64 ... -device ufs -drive file=blk1g.bin,format=raw,if=none,id=luimg -device ufs-lu,drive=luimg,lun=0 2. Loading/unloading the ufshci module on QEMU $ kldload /usr/obj/usr/src/amd64.amd64/sys/modules/ufshci/ufshci.ko $ kldunload ufshci Testing on real hardware: - Samsung Galaxy Book S (Intel Lakefield) with UFS 3.0 - Lenovo duet 3 11ian8 (Intel N100) with UFS 2.1 Sponsored by: Samsung Electronics Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D50370 |
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| .cirrus-ci | ||
| .github | ||
| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| stand | ||
| sys | ||
| targets | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| .arcconfig | ||
| .arclint | ||
| .cirrus.yml | ||
| .clang-format | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| CONTRIBUTING.md | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.libcompat | ||
| Makefile.sys.inc | ||
| ObsoleteFiles.inc | ||
| README.md | ||
| RELNOTES | ||
| UPDATING | ||
FreeBSD Source:
This is the top level of the FreeBSD source directory.
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.
The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), FreeBSD handbook on building userland, and Handbook for kernels for more information, including setting make(1) variables.
For information on the CPU architectures and platforms supported by FreeBSD, see the FreeBSD website's Platforms page.
For official FreeBSD bootable images, see the release page.
Source Roadmap:
| Directory | Description |
|---|---|
| bin | System/user commands. |
| cddl | Various commands and libraries under the Common Development and Distribution License. |
| contrib | Packages contributed by 3rd parties. |
| crypto | Cryptography stuff (see crypto/README). |
| etc | Template files for /etc. |
| gnu | Commands and libraries under the GNU General Public License (GPL) or Lesser General Public License (LGPL). Please see gnu/COPYING and gnu/COPYING.LIB for more information. |
| include | System include files. |
| kerberos5 | Kerberos5 (Heimdal) package. |
| lib | System libraries. |
| libexec | System daemons. |
| release | Release building Makefile & associated tools. |
| rescue | Build system for statically linked /rescue utilities. |
| sbin | System commands. |
| secure | Cryptographic libraries and commands. |
| share | Shared resources. |
| stand | Boot loader sources. |
| sys | Kernel sources (see sys/README.md). |
| targets | Support for experimental DIRDEPS_BUILD |
| tests | Regression tests which can be run by Kyua. See tests/README for additional information. |
| tools | Utilities for regression testing and miscellaneous tasks. |
| usr.bin | User commands. |
| usr.sbin | System administration commands. |
For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see FreeBSD Handbook.