Messages in this thread | | | Date | Tue, 14 Sep 2004 13:14:35 -0400 | From | Mark Lord <> | Subject | Re: [PATCH] New QStor SATA/RAID Driver for 2.6.9-rc2 |
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Alan Cox wrote: > Correct ioctl return is -ENOTTY for unknown (thats a mistake still in > many existing drivers so no suprise its still being copied)
Quoting linux/Documentation/scsi_mid_low_api.txt: * * Unfortunately some applications expect -EINVAL and react badly * when -ENOTTY is returned; stick with -EINVAL.
Looks like a documentation fix is needed then.
This is a hardware RAID device, with various graduations of sharing possible between hardware and software. It was originally written pre-libata, and the RAID functionality in particular does not map well to libata. Nor do the host-queuing implementation and other features.
Thanks Alan. I'll address the other points you brought up later.
Cheers -- Mark Lord (hdparm keeper & the original "Linux IDE Guy") - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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