Hmmm.. weird. That's not what I'm seeing. AHCI reports command issue failure if something goes wrong while transmitting D2H fis for a command
you mean H2D, don't you?
(probably when it sees R_ERR). If I issue SRST shortly after power-on, AHCI fails SRST due to command issue failure. So, it seems that the device rejects SRST before it transmits the first FIS34.
there is also the possiblity that the AHCI doesn't issue the FIS34 as long as the BSY bit in the Status shadow register is set. so it's not the disk fault. I have taken a look at the AHCI spec, and found that you need to use the Commnad List Override (CLO) feature in order to send FIS while BSY is set. do you use that ? - : 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
