"Justin T. Gibbs" wrote:
>
> >This is just to report on a the behavior of this driver. I've a dual
> >channel Adaptec 7895 controller. The adapter BIOS is configured to boot
> >from devices in channel B. I boot from a disk connected to channel B
> >and when the kernel loads the driver the disks from channel A are seen
> >first, resulting in the drive names changing from, say sda to sdb. This
> >does not happen with 2.2.18 or 2.4.2. Is there an option to reverse the
> >order? I saw some of the options in the code, but none about this.
>
> Can you provide me with a dmesg from a boot with aic7xxx=verbose?
> I just tested this on a 3940AUW and the behavior was as expected.
> Perhaps you have a motherboard based controller that has no seeprom?
> I don't know how to detect flipped channels in that configuration
> but I'll see what I can find out.
Your driver uses the new PCI probe code, so there is no gaurantee that you'll
see channel A before channel B. So, if you haven't seen channel A yet, you
won't already have read the Channel B Primary bit in the SEEPROM. So, my
guess would be that you should modify the code so that when presented with the
B or C channel of a device, maybe you should make a call to load_seeprom() (or
whatever it is in your driver) for Channel A, grab the bits you need that are
only on channel A's SEEPROM, save them off, then read the Channel B/C SEEPROM
entry as needed. That should solve the problem anyway. Of course, it could
simply be something else that is wrong and I could be smoking crack ;-)
--Doug Ledford <dledford@redhat.com> http://people.redhat.com/dledford Please check my web site for aic7xxx updates/answers before e-mailing me about problems - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Mar 07 2001 - 21:00:20 EST