commit | 553514117b19973c22db25253f8d941a7dbecab6 | [log] [tgz] |
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author | Venkatesh Srinivas <venkateshs@google.com> | Thu Jan 24 23:15:04 2019 +0000 |
committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Thu Jan 31 02:01:19 2019 +0000 |
tree | 09b25c5e354ece5be8e47aff4653cbf1343fdd21 | |
parent | 549a2e94f146c741b76b5fb99af5ba7c1519c8d2 [diff] |
[scsilib] Add Controller interface between SCSI targets and HBAs Introduce Controller, a very simple interface between SCSI target drivers (ex: Disks) and SCSI Controller drivers. It provides a mechanism for targets to execute commands with a data-in/data-out region and retrieve the status of the command. This interface is purely synchronous and non-queued. It is only in place to support development. In the future it should be replaced with a Banjo interface. The plan (see conflicting WIP CL) is that peripherals will be constructed with a pointer to their Controller and will use this interface to execute initial (probe, startup, enumerate) commands. ZX-2314 Tested: Built Change-Id: I6e25bbd80a79e6dbf652c6a28b980d850ef32d4f
Zircon is the core platform that powers the Fuchsia OS. Zircon is composed of a microkernel (source in kernel/...) as well as a small set of userspace services, drivers, and libraries (source in system/...) necessary for the system to boot, talk to hardware, load userspace processes and run them, etc. Fuchsia builds a much larger OS on top of this foundation.
The canonical Zircon Git repository is located at: https://fuchsia.googlesource.com/zircon
The Zircon Kernel provides syscalls to manage processes, threads, virtual memory, inter-process communication, waiting on object state changes, and locking (via futexes).
Currently there are some temporary syscalls that have been used for early bringup work, which will be going away in the future as the long term syscall API/ABI surface is finalized. The expectation is that there will be about 100 syscalls.
Zircon syscalls are generally non-blocking. The wait_one, wait_many port_wait and thread sleep being the notable exceptions.
This page is a non-comprehensive index of the zircon documentation.