Re: [PATCH 3/3] Import fw-sbp2 driver.

From: Kristian Høgsberg
Date: Fri Dec 15 2006 - 10:11:32 EST


Stefan Richter wrote:
Kristian Høgsberg wrote:
Jeff Garzik wrote:
doesn't allowing the stack to issue REPORT LUNS take care of this?
Possibly, I don't have firewire multi-LUN devices to test with here. The LUNs are also discoverable from the firewire config rom, which is
why I put the comment there. This doesn't mean that the SCSI commands
for discovering LUNs doesn't also work.

I expect REPORT LUNS won't work for many SBP-2 devices. It is not included
in RBC.

We discover LUs properly from the information in the ISO 13213 ROM. We just
don't map multiple LUs of the same target to scsi_device's beneath a single
scsi_target. (We instantiate one Scsi_Host for each LU. I might implement
a respective mapping some day, but there is no bigger benefit of doing so.)

Yeah, I saw that the stack creates a struct device per LUN, which is kinda gross in my opinion. It's easy enough to discover the LUNs from the rom, I just need to figure out how to tell the SCSI stack about multiple LUNs.

Kristian


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