Fajun Chen wrote:
Hi Folks, I just upgraded to the libata with new EH and I have some questions about the new error handler: 1. In several occasions, I saw a port being disable, under what kind of conditions will new EH disable a port?
After EH fails to recover a device. It usually takes three recovery trial failures.
2. For user space program, is there any way to checked the state of a port/drive? I noticed that dmesg has some printout but that could be wiped out by other traces or errors.
Hmmm... Not yet.
3. Does libata allow user space code to reset host/bus/drive or only libata itself has the privilege? I tried sg reset IOCTL interface on SATA Sil3124, it seems not working.
No, that doesn't work but issuing userscan forces libata to reset the channel.
4. How to reenable a port/drive after it's disabled without rebooting? Any API or command from user space?
You can use SCSI userscan interface. Regards. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
