Hello, On Thu, Jun 04, 2015 at 01:05:49PM +0800, linux wrote: > Dear Tejun Heo, > > This is HighPoint Linux Team. We found Linux AHCI driver since kernel 3.16 > has added ID (0x06421103) to support RocketRAID 642L which is not what we > expected. If we want to load HighPoint RR642L RAID version Linux SCSI > driver, it becomes conflict each other. This affects our customers who need > to use our RAID version driver stack. > > Hence, this is to ask Linux how to solve this conflict with AHCI driver? > and why Linux wants to add RR642L ID (0x06421103) into AHCI driver? Is there > any way to prevent this in the future?
Hmmm... so, you're trying to load a proprietary driver but you're having problem because in-kernel ahci attaches to the driver? * If the driver is built-in, putting the proprietary driver before ahci in Makefile will make that driver probe before ahci. * If module, ahci can be unbound by echoing the PCI bus ID to /sys/bus/pci/drivers/ahci/unbind and then bind that to the proprietary driver. * Or you can tell pci-stub driver do grab the PCI ID so that ahci doesn't probe it at all. Once the proprietary driver becomes available, the device can be rebound to the driver. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
