Re: Fwd: libata extension
Vitaliyi wrote: Why is the access to Control register needed? To execute soft reset for example. > In the perfect case i would like to be able to execute vendor command > set (reverse engineered). Sounds interesting. :-) Could you give some more details on what are you going to implement? Reading/writing service area, uploading, downloading modules, working with flash etc. SAT (aka ATA passthru) defines how to do soft-reset. SG_IO supports the ATA_12 and ATA_16 commands which permit soft-reset and similar tasks. libata supports this interface, but does not yet support soft-reset and similar non-comment-oriented tasks. This would be the best area to add such features, though. Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Fwd: libata extension
Vitaliyi wrote: Why is the access to Control register needed? To execute soft reset for example. In the perfect case i would like to be able to execute vendor command set (reverse engineered). Sounds interesting. :-) Could you give some more details on what are you going to implement? Reading/writing service area, uploading, downloading modules, working with flash etc. SAT (aka ATA passthru) defines how to do soft-reset. SG_IO supports the ATA_12 and ATA_16 commands which permit soft-reset and similar tasks. libata supports this interface, but does not yet support soft-reset and similar non-comment-oriented tasks. This would be the best area to add such features, though. Jeff - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Fwd: libata extension
Why is the access to Control register needed? To execute soft reset for example. > In the perfect case i would like to be able to execute vendor command > set (reverse engineered). Sounds interesting. :-) Could you give some more details on what are you going to implement? Reading/writing service area, uploading, downloading modules, working with flash etc. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Fwd: libata extension
-- Forwarded message -- From: Vitaliyi <[EMAIL PROTECTED]> Date: Mar 12, 2007 7:03 PM Subject: Re: libata extension To: Mark Lord <[EMAIL PROTECTED]> Use the SCSI SG_IO ioctl() with opcode=ATA_16, which gives you access to the ATA Passthrough mechanism. This will work for most ATA commands. How about soft-reset, is it possible to reach Device Control Register ? Seems not. I was thinking about patch to libata which allow to use Control Register. In the perfect case i would like to be able to execute vendor command set (reverse engineered). Is it possible to control timeouts in user space precisely enough and get rid of unnecessary kernel error messages without touching syslogd/klogd? By the way, how to make libata to not probe some ide channel or drive ? I already use it in hdparm and in some other utilities for scanning/repairing drives. A notable exeception are the READ/WRITE LONG opcodes, which require an extra kernel patch from me, awaiting merge into libata some year. Could you please send me this patch once it's ready ? Thank you - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: libata extension
Vitaliyi wrote: Good Day Say i want to implement extended set of ATA commands available to userspace for building diagnostic tools. I need 0x40 -- read verify and 0x32 -- write long with error handling, for example. I was trying ide driver through ioctl's, but seems it lack of functionality and full of gotchas. Furthermore it oopses sometimes. Use the SCSI SG_IO ioctl() with opcode=ATA_16, which gives you access to the ATA Passthrough mechanism. This will work for most ATA commands. I already use it in hdparm and in some other utilities for scanning/repairing drives. A notable exeception are the READ/WRITE LONG opcodes, which require an extra kernel patch from me, awaiting merge into libata some year. Cheers -ml - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: libata extension
Vitaliyi wrote: Good Day Say i want to implement extended set of ATA commands available to userspace for building diagnostic tools. I need 0x40 -- read verify and 0x32 -- write long with error handling, for example. I was trying ide driver through ioctl's, but seems it lack of functionality and full of gotchas. Furthermore it oopses sometimes. Use the SCSI SG_IO ioctl() with opcode=ATA_16, which gives you access to the ATA Passthrough mechanism. This will work for most ATA commands. I already use it in hdparm and in some other utilities for scanning/repairing drives. A notable exeception are the READ/WRITE LONG opcodes, which require an extra kernel patch from me, awaiting merge into libata some year. Cheers -ml - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Fwd: libata extension
-- Forwarded message -- From: Vitaliyi [EMAIL PROTECTED] Date: Mar 12, 2007 7:03 PM Subject: Re: libata extension To: Mark Lord [EMAIL PROTECTED] Use the SCSI SG_IO ioctl() with opcode=ATA_16, which gives you access to the ATA Passthrough mechanism. This will work for most ATA commands. How about soft-reset, is it possible to reach Device Control Register ? Seems not. I was thinking about patch to libata which allow to use Control Register. In the perfect case i would like to be able to execute vendor command set (reverse engineered). Is it possible to control timeouts in user space precisely enough and get rid of unnecessary kernel error messages without touching syslogd/klogd? By the way, how to make libata to not probe some ide channel or drive ? I already use it in hdparm and in some other utilities for scanning/repairing drives. A notable exeception are the READ/WRITE LONG opcodes, which require an extra kernel patch from me, awaiting merge into libata some year. Could you please send me this patch once it's ready ? Thank you - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Fwd: libata extension
Why is the access to Control register needed? To execute soft reset for example. In the perfect case i would like to be able to execute vendor command set (reverse engineered). Sounds interesting. :-) Could you give some more details on what are you going to implement? Reading/writing service area, uploading, downloading modules, working with flash etc. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: libata extension
Hi, On Sunday 11 March 2007, Vitaliyi wrote: > Good Day > > Say i want to implement extended set of ATA commands available to > userspace for building diagnostic tools. > I need 0x40 -- read verify and 0x32 -- write long with error handling, Mark Lord is working on READ/WRITE_LONG support for libata, he has posted draft patch recently on linux-ide mailing list. [ Please consider reading/joining linux-ide@vger.kernel.org ML, it is where Linux ATA discussion happens... ] > for example. I was trying ide driver through ioctl's, but seems it > lack of functionality and full of gotchas. Furthermore it oopses > sometimes. READ/WRITE_LONG is unsupported and as you've already noticed TASKFILE ioctls are full of gotchas... > Is it possible to use libata for such purpose or i need to write > separate IDE driver ? It should be possible using ATA pass-through, some libata changes may be required but it is the right way to go IMO. Bart - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: libata extension
> I believe you should be able to do this by sending ATA pass-through SCSI > commands into the device using SG_IO, without any kernel changes. It's > really the mechanism that's meant for this.. It should work, but Mark Lord reported some problems with READ_LONG on PIIX/ICH intel chipsets. I don't know if he ever resolved them but if not I have a patch that ought to. Alan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: libata extension
Vitaliyi wrote: Good Day Say i want to implement extended set of ATA commands available to userspace for building diagnostic tools. I need 0x40 -- read verify and 0x32 -- write long with error handling, for example. I was trying ide driver through ioctl's, but seems it lack of functionality and full of gotchas. Furthermore it oopses sometimes. Is it possible to use libata for such purpose or i need to write separate IDE driver ? By the way, i'm sure it should be done in kernel space since i'm going to deal with some hdd manufacturer commands. P.S. I was looking through libata and ide sources and documentation but still dont have broad picture. I believe you should be able to do this by sending ATA pass-through SCSI commands into the device using SG_IO, without any kernel changes. It's really the mechanism that's meant for this.. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: libata extension
Vitaliyi wrote: Good Day Say i want to implement extended set of ATA commands available to userspace for building diagnostic tools. I need 0x40 -- read verify and 0x32 -- write long with error handling, for example. I was trying ide driver through ioctl's, but seems it lack of functionality and full of gotchas. Furthermore it oopses sometimes. Is it possible to use libata for such purpose or i need to write separate IDE driver ? By the way, i'm sure it should be done in kernel space since i'm going to deal with some hdd manufacturer commands. P.S. I was looking through libata and ide sources and documentation but still dont have broad picture. I believe you should be able to do this by sending ATA pass-through SCSI commands into the device using SG_IO, without any kernel changes. It's really the mechanism that's meant for this.. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: libata extension
I believe you should be able to do this by sending ATA pass-through SCSI commands into the device using SG_IO, without any kernel changes. It's really the mechanism that's meant for this.. It should work, but Mark Lord reported some problems with READ_LONG on PIIX/ICH intel chipsets. I don't know if he ever resolved them but if not I have a patch that ought to. Alan - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: libata extension
Hi, On Sunday 11 March 2007, Vitaliyi wrote: Good Day Say i want to implement extended set of ATA commands available to userspace for building diagnostic tools. I need 0x40 -- read verify and 0x32 -- write long with error handling, Mark Lord is working on READ/WRITE_LONG support for libata, he has posted draft patch recently on linux-ide mailing list. [ Please consider reading/joining linux-ide@vger.kernel.org ML, it is where Linux ATA discussion happens... ] for example. I was trying ide driver through ioctl's, but seems it lack of functionality and full of gotchas. Furthermore it oopses sometimes. READ/WRITE_LONG is unsupported and as you've already noticed TASKFILE ioctls are full of gotchas... Is it possible to use libata for such purpose or i need to write separate IDE driver ? It should be possible using ATA pass-through, some libata changes may be required but it is the right way to go IMO. Bart - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
libata extension
Good Day Say i want to implement extended set of ATA commands available to userspace for building diagnostic tools. I need 0x40 -- read verify and 0x32 -- write long with error handling, for example. I was trying ide driver through ioctl's, but seems it lack of functionality and full of gotchas. Furthermore it oopses sometimes. Is it possible to use libata for such purpose or i need to write separate IDE driver ? By the way, i'm sure it should be done in kernel space since i'm going to deal with some hdd manufacturer commands. P.S. I was looking through libata and ide sources and documentation but still dont have broad picture. Thanks - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
libata extension
Good Day Say i want to implement extended set of ATA commands available to userspace for building diagnostic tools. I need 0x40 -- read verify and 0x32 -- write long with error handling, for example. I was trying ide driver through ioctl's, but seems it lack of functionality and full of gotchas. Furthermore it oopses sometimes. Is it possible to use libata for such purpose or i need to write separate IDE driver ? By the way, i'm sure it should be done in kernel space since i'm going to deal with some hdd manufacturer commands. P.S. I was looking through libata and ide sources and documentation but still dont have broad picture. Thanks - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
