Messages in this thread | | | Subject | Re: [PATCH] starfire reads irq before pci_enable_device. | From | Jes Sorensen <> | Date | 09 Feb 2001 22:43:53 +0100 |
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>>>>> "Manfred" == Manfred Spraul <manfred@colorfullife.com> writes:
Manfred> Ion Badulescu wrote: >> > > +#if defined(__ia64__) || defined(__alpha__) > > +#define >> PKT_SHOULD_COPY(pkt_len) 1 > > +#else > > +#define >> PKT_SHOULD_COPY(pkt_len) (pkt_len < rx_copybreak) > > +#endif > >> [snip] >> >> It's not *required* per se, as far as I know both the Alpha and >> IA64 have handlers for unaligned access traps. *However*, copying >> each packet is definitely better than taking an exception for each >> packet!
Manfred> What about changing the default for rx_copybreak instead? Manfred> Set it to 1536 on ia64 and Alpha, 0 for the rest. tulip and Manfred> eepro100 use that aproach.
Inefficient, my patch will make the unused code path disappear during compilation, what you suggest results in an extra branch and unused code.
The eepro100 and tulip drivers really should be changed to use the same trick.
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