Soeren Schmidt hat die Verfügbarkeit eines neuem ATAng-Treibers angekündigt.
Dieser Treiber bietet Unterstützung auch für neuere ATA-Controller die z.B. mit Hardware XOR arbeiten
(.z.B. Promise IDE-Raid-Controller).
Gleichzeitig sollen auch die ATA und ATAPI-Codes in einen Topf geschmissen worden sein,
um weitere schöne Dinge, wie z.B. S.M.A.R.T. zu ermöglichen.
Der Treiber steht hier zu Verfügung und der Author hofft auf zahlreiches Feedback
ftp://ftp.deepcore.dk/pub/ATAng
####
From: Soeren Schmidt <sos@spider.deepcore.dk>
Date: Fri, 8 Aug 2003 21:55:11 +0200 (CEST)
Subject: TESTERS WANTED for ATAng preview 1
The first preview release of ATAng is now available on:
ftp://ftp.deepcore.dk/pub/ATAng
>From the README there:
ATAng preview 1 release
Before these rather radical changes to the ATA driver hits the
tree, here is the opportunity to test them out, give usefull
feedback and for the depending subsytems to adjust to the new
ways of things (burncd & atapicam are good examples).
Now why all these changes suddenly ?
1. Get GIANT out of the ATA driver. This was pretty tedious in the old
version (I tried that long ago and found it way too painfull).
With this new structure it was a walk in the park since handling of
ATA commands/requests are now split up in a "queue" part and a
"lowlevel" part. This makes the places where locks are needed a lot
more obvious to locate, making it easier to implement and maintain.
2. Provide the framework for supporting new ATA controllers that has
facilities for chaining commands and HW XOR's etc. This called for
some radical changes to the basic framework which fitted nicely with
item 1 above. Most of the hooks needed for "exotic" HW are now present,
and the next step will be for drivers to use this to get an edge over
conventional ATA controllers. Promise Inc. has kindly provided HW and
documentation for their latests chips that has lots of interesting
features that we can now start to use. Much more on this when these
basic bits has settled..
3. Merge of ATA and ATAPI code. As an effect of the new framework there
is now a single entrypoint for ATA/ATAPI commands. This will extend
to userland where it will be possible to issue both ATA and ATAPI
commands just as before with just ATAPI ones. This will add the
ability to do all kinds of stuff from userland, like SMART etc,
however it will also provide a nice way of trashing your system
The code for this is not included in this preview as I still need
to settle on the API for this.
4. During all this lots of bugs and problems in the old code has been
found and fixed.
5. The way ATA RAID support works today need to change as well to make
full use of fx Promise's new chips. This is NOT done yet, in fact
the ata-raid.? driver is still the same, bugs and all.
To try this out you need to apply the "conf-patch" file to your sys tree
then delete the contents of dev/ata and put the contents of the
ATAng-<timestamp>.tgz in there instead. You might want to include
"device ataraid" in your kernel config file if you use ATA RAID's.
Config & make your kernel as usual.
Now, some things are not completly done yet, some things will not
be done at all and there are bound to be bugs lurking, so use
protective measures for safe engagement, you have been warned 8)
Constructive feedback as always very welcome!!
Enjoy!
-Søren
Dieser Treiber bietet Unterstützung auch für neuere ATA-Controller die z.B. mit Hardware XOR arbeiten
(.z.B. Promise IDE-Raid-Controller).
Gleichzeitig sollen auch die ATA und ATAPI-Codes in einen Topf geschmissen worden sein,
um weitere schöne Dinge, wie z.B. S.M.A.R.T. zu ermöglichen.
Der Treiber steht hier zu Verfügung und der Author hofft auf zahlreiches Feedback
ftp://ftp.deepcore.dk/pub/ATAng
####
From: Soeren Schmidt <sos@spider.deepcore.dk>
Date: Fri, 8 Aug 2003 21:55:11 +0200 (CEST)
Subject: TESTERS WANTED for ATAng preview 1
The first preview release of ATAng is now available on:
ftp://ftp.deepcore.dk/pub/ATAng
>From the README there:
ATAng preview 1 release
Before these rather radical changes to the ATA driver hits the
tree, here is the opportunity to test them out, give usefull
feedback and for the depending subsytems to adjust to the new
ways of things (burncd & atapicam are good examples).
Now why all these changes suddenly ?
1. Get GIANT out of the ATA driver. This was pretty tedious in the old
version (I tried that long ago and found it way too painfull).
With this new structure it was a walk in the park since handling of
ATA commands/requests are now split up in a "queue" part and a
"lowlevel" part. This makes the places where locks are needed a lot
more obvious to locate, making it easier to implement and maintain.
2. Provide the framework for supporting new ATA controllers that has
facilities for chaining commands and HW XOR's etc. This called for
some radical changes to the basic framework which fitted nicely with
item 1 above. Most of the hooks needed for "exotic" HW are now present,
and the next step will be for drivers to use this to get an edge over
conventional ATA controllers. Promise Inc. has kindly provided HW and
documentation for their latests chips that has lots of interesting
features that we can now start to use. Much more on this when these
basic bits has settled..
3. Merge of ATA and ATAPI code. As an effect of the new framework there
is now a single entrypoint for ATA/ATAPI commands. This will extend
to userland where it will be possible to issue both ATA and ATAPI
commands just as before with just ATAPI ones. This will add the
ability to do all kinds of stuff from userland, like SMART etc,
however it will also provide a nice way of trashing your system
The code for this is not included in this preview as I still need
to settle on the API for this.
4. During all this lots of bugs and problems in the old code has been
found and fixed.
5. The way ATA RAID support works today need to change as well to make
full use of fx Promise's new chips. This is NOT done yet, in fact
the ata-raid.? driver is still the same, bugs and all.
To try this out you need to apply the "conf-patch" file to your sys tree
then delete the contents of dev/ata and put the contents of the
ATAng-<timestamp>.tgz in there instead. You might want to include
"device ataraid" in your kernel config file if you use ATA RAID's.
Config & make your kernel as usual.
Now, some things are not completly done yet, some things will not
be done at all and there are bound to be bugs lurking, so use
protective measures for safe engagement, you have been warned 8)
Constructive feedback as always very welcome!!
Enjoy!
-Søren