On Fri, Jul 27, 2007 at 10:57:16AM -0400, Jeff Garzik wrote: > Matthew Wilcox wrote: > >On Fri, Jul 27, 2007 at 10:49:17AM -0400, Jeff Garzik wrote: > >>I thought you had multiple scsi hosts per board? Thus multiple scsi > >>hosts per interrupt? > > > >Right. We'll request the interrupt twice, each time with a different > >scsi_host. > > ewwwwww. That's, um, broken :) > > I presume request_irq() will fail on non-ISA for subsequent calls, and > your interrupt handler gets called -twice- for every single interrupt. I don't have any of these boards, so I may be labouring under a false apprehension here. It seems that PCI cards with multiple hosts are actually one host per function (ie just like sym2, and dissimilar to aic7xyz). With EISA, we set IRQF_SHARED, so we can request the same interrupt twice, each time with a different Scsi_Host. I think the VLB card is probably stuffed -- need to set IRQF_SHARED for that case. -- "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
