Hi Michael! On 3/22/21 3:31 AM, Michael Schmitz wrote: > note that the libata driver for Falcon does not utilize interrupts due to the > interaction between IDE, SCSI and floppy hardware, the latter two also making > use of the ST-DMA chip which cannot be transparently checked for DMA > completion. > > Instead, the libata driver polls for IDE command completion. This may add a > little > latency, but that's probably offset by the lack of contention between IDE and > SCSI > drivers in mixed IDE / SCSI operation. In my tests, I haven't found any > substantial > impact from the driver change (and I was quite sceptical of the libata driver > performance).
Is this a fundamental limitation of libata that interrupts are not supported or just a limitation of pata_falcon? Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaub...@debian.org `. `' Freie Universitaet Berlin - glaub...@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
