Date: Fri, 06 Feb 2009 08:19:01 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: alfred@freebsd.org Cc: usb@freebsd.org, current@freebsd.org Subject: Re: HEADSUP usb2/usb4bsd to become default in GENERIC Message-ID: <20090206.081901.1923806177.imp@bsdimp.com> In-Reply-To: <20090206045349.GQ78804@elvis.mu.org> References: <20090206045349.GQ78804@elvis.mu.org>
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Doesn't the busdma issue need to be solved before we do this? usb2
currently doesn't work if you have memory above 4GB due to this
issue. I thought we tagged it as a show stopper for making it the
default.
Warner
In message: <20090206045349.GQ78804@elvis.mu.org>
Alfred Perlstein <alfred@freebsd.org> writes:
: Hello -current and -usb.
:
: We are in the final stages of bringing in the new usb
: stack.
:
: Features include: SMP, better device support, speed increases.
:
: We hope to make it in for 8.0. It will really take a unified effort
: to make this all work and I look forward to all contributors input.
:
: We have a few large steps ahead of us and I wanted to lay out the
: schedule so that people understand what is coming and what to expect.
:
: At this point we expect there to be no style or changes in usb2
: that are not bugfixes until Phase 3 "Hand off". The reason for
: this is to prevent bugs from creeping in and allow the maintainer
: to focus 100% on bugs and feature parity with the oldusb stack.
:
: Here is the plan and timeline:
:
: Phase 1) Make usb2 the default, by enabling it in GENERIC.
:
: * Sunday 8 Feb 2009 -- Toggle the usb2 knob in GENERIC
:
: - Add all the usb2 options to NOTES, including commented
: documentation about recommended usb2 'sets' of options,
: and the usual NOTES-based hints about the options.
:
: - Update GENERIC to use usb2 device names.
:
: - Bump __FreeBSD_version and edit UPDATING to note usb2 is now the
: default.
:
: - Verify that it still possible to use the old usb code as a
: fallback, until we are ready to detach and remove it from /head
:
: * Sunday 22 Feb 2009 -- Go through quirks in old-usb code and port
: over any remaining bits to usb2
:
: - Lock the oldusb code for 2 weeks, until the next usb2
: checkpoint, to verify usb2 is a viable replacement without
: having to keep chasing a moving oldusb target.
:
: Phase 2) Removing the oldusb code.
:
: * Sunday 15 Mar 2009 -- usb2 bug busting weekend
:
: - Go through the open usb2 problem reports, and see if there are
: any usb2 blocker bugs that need fixing.
:
: - If the bug hunt shows we are ready to do away with oldusb,
: unlink the old usb code from the build, but leave it in for
: a few more days.
:
: * Sunday 22 Mar 2009 -- remove oldusb code.
:
: - old usb code will be removed.
:
: Phase 3) Hand-off.
:
: * Sunday 29 Mar 2009 -- usb2 hand over to src-committers
:
: - The switch from a private Hans-only repository to the main
: subversion tree.
:
: - At this point, the usb2 is handed over to the src-committers
: and Hans has to go through a mentor/committer before committing
: changes.
:
: Thank you!
:
: --
: - Alfred Perlstein
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