Re: ATA streaming feature support
On 1/7/07, Jeff Garzik <[EMAIL PROTECTED]> wrote: Manish Regmi wrote: > Hi all, > First of all sorry for bringing this topic again. > As discussed in --> http://lkml.org/lkml/2006/5/5/47 > The ATA Streaming feature set is not necessary to be in Kernel Space > (IDE driver). There is a suggestion creating user space library. > > But how is the user space apps going to use the commands like READ > STREAM DMA EXT (0x2A). Shouldn't there be some support in kernel which > setups up PRD tables and all. > It doesn't seem to be possible is it? If you pass SG_IO addresses, they become DMA scatter/gather tables. Jeff Thank you for your answer. But what about PATA disks. Is that ioctl supported in PATA disk? I tried to give IDENTIFY command but it failed with invalid argument. Regards Manish Regmi - 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: ATA streaming feature support
On 1/7/07, Jeff Garzik [EMAIL PROTECTED] wrote: Manish Regmi wrote: Hi all, First of all sorry for bringing this topic again. As discussed in -- http://lkml.org/lkml/2006/5/5/47 The ATA Streaming feature set is not necessary to be in Kernel Space (IDE driver). There is a suggestion creating user space library. But how is the user space apps going to use the commands like READ STREAM DMA EXT (0x2A). Shouldn't there be some support in kernel which setups up PRD tables and all. It doesn't seem to be possible is it? If you pass SG_IO addresses, they become DMA scatter/gather tables. Jeff Thank you for your answer. But what about PATA disks. Is that ioctl supported in PATA disk? I tried to give IDENTIFY command but it failed with invalid argument. Regards Manish Regmi - 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: ATA streaming feature support
Manish Regmi wrote: Hi all, First of all sorry for bringing this topic again. As discussed in --> http://lkml.org/lkml/2006/5/5/47 The ATA Streaming feature set is not necessary to be in Kernel Space (IDE driver). There is a suggestion creating user space library. But how is the user space apps going to use the commands like READ STREAM DMA EXT (0x2A). Shouldn't there be some support in kernel which setups up PRD tables and all. It doesn't seem to be possible is it? If you pass SG_IO addresses, they become DMA scatter/gather tables. 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: ATA streaming feature support
Manish Regmi wrote: Hi all, First of all sorry for bringing this topic again. As discussed in -- http://lkml.org/lkml/2006/5/5/47 The ATA Streaming feature set is not necessary to be in Kernel Space (IDE driver). There is a suggestion creating user space library. But how is the user space apps going to use the commands like READ STREAM DMA EXT (0x2A). Shouldn't there be some support in kernel which setups up PRD tables and all. It doesn't seem to be possible is it? If you pass SG_IO addresses, they become DMA scatter/gather tables. 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/
ATA streaming feature support
Hi all, First of all sorry for bringing this topic again. As discussed in --> http://lkml.org/lkml/2006/5/5/47 The ATA Streaming feature set is not necessary to be in Kernel Space (IDE driver). There is a suggestion creating user space library. But how is the user space apps going to use the commands like READ STREAM DMA EXT (0x2A). Shouldn't there be some support in kernel which setups up PRD tables and all. It doesn't seem to be possible is it? Does it sound normal if we have something like O_STREAM in open() or a seperate IOCTL to command the driver to use STREAM commands (if supported). Will this feature be useful for streaming media apps like DVRs? (i am working in one such.) -- --- regards Manish Regmi --- UNIX without a C Compiler is like eating Spaghetti with your mouth sewn shut. It just doesn't make sense. - 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/
ATA streaming feature support
Hi all, First of all sorry for bringing this topic again. As discussed in -- http://lkml.org/lkml/2006/5/5/47 The ATA Streaming feature set is not necessary to be in Kernel Space (IDE driver). There is a suggestion creating user space library. But how is the user space apps going to use the commands like READ STREAM DMA EXT (0x2A). Shouldn't there be some support in kernel which setups up PRD tables and all. It doesn't seem to be possible is it? Does it sound normal if we have something like O_STREAM in open() or a seperate IOCTL to command the driver to use STREAM commands (if supported). Will this feature be useful for streaming media apps like DVRs? (i am working in one such.) -- --- regards Manish Regmi --- UNIX without a C Compiler is like eating Spaghetti with your mouth sewn shut. It just doesn't make sense. - 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/
