Tejun Heo wrote:
Hello, Mark.
Mark Lord wrote:
Are there controllers which *can* handle such a mix (ahci, sil24 ?)
Yeap, sil24 can. ahci can currently only do device based switching but
ahci 2.0 can do it too.
So it looks like a I need a .qc_defer() function which examines all
links
from the common host port for activity, and then asks for command
deferral
when the new command has a different protocol than those that are
outstanding.
Weird that none of the other LLDs need this. Or do they?
So, none of the others needs this.
..
Mmm.. I just plugged the same PM + drives into my sata_sil24 card here,
and that driver went bonkers when I did the same test.
Had to reboot eventually to recover.
Weird.
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