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SubjectRe: [PATCH 0/4] New firewire stack - updated patches
Kristian Høgsberg wrote:
> Hi,
>
> Here's a new set of patches for the new firewire stack. The changes
> since the last set of patches address the issues that were raised on
> the list and can be reviewed in detail here:
.. for some reason I didn't get patch 3/4 and 4/4 on the linux1394-devel
list, so I'll reply to this one.

I would suggest a reordering of the interrupt flag checks. Currently the
interrupts that are least likely to occur are checked first. I don't see
why. I would reorder the check such that ISO interrupts are checked
first, as they have the most stringent timing constraints and are most
likely to occur (when using ISO traffic).

After processing the ISO interrupts (and maybe the Async ones), a bypass
could be inserted to exit the interrupt handler when there are no other
interrupts to be handled. All other interrupts are to report relatively
rare events or errors (error handling still to be added I assume). The
effective run-length of the interrupt handler would be shorter using
such a bypass, especially in the case where there is a lot of ISO traffic.

I'm looking forward to your ISO implementation, and I hope to
incorporate it into FreeBob really fast.

Pieter
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