Hi, I was browsing through the kernel while looking at https://github.com/systemd/systemd/issues/3943#issuecomment-239608897 and I noticed that in libata-scsi.c shost->max_channel is set to 1. I'm unsure as to why it's one rather than 0 because it doesn't look like two channels are used and the code in http://lxr.free-electrons.com/source/drivers/scsi/scsi_error.c#L1595 loops over the 0th channel. Further, if a SATA port multiplier is being used aren't channels used to represent the port multiplier ports (http://lxr.free-electrons.com/source/drivers/ata/libata-scsi.c?v=4.6#L3726 )? If so does max_channel need to be increased to one less than SATA_PMP_MAX_PORTS? If so, would this explain the results seen in https://www.usenix.org/system/files/fastpw13-paper7_0.pdf ? -- 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
