Alexander Motin <[email protected]> wrote: > > Compare the number of sense bytes I like to request (18) with the number > > previous FreeBSD versions did actually request. It is obvious that in case > > there is a resid reported onm an old kernel, libscg (with your chanhge) > > would > > believe that probably less that the absolute minumum of sense data is > > available. > > Kernel code I have changed affects only controllers without automatic > sense fetching. For such controllers CAM previously always reported zero > sense_resid, independently of requested size (which actually was also > ignored in this case). So previously whatever you asked for 18 or 32 > bytes - sense_resid was always zero, like if you got full 18 or 32 > bytes. That was wrong. Now, in the same situation, if device wants to > return let's say 20 bytes -- you will get 0 and 12 bytes of sense_resid > respectively, meaning 18 and 20 bytes of received sense. > > AFAIK sense_resid always measured from the requested sense_len. In my > patch for libscg you may see that I have changed both request and > response paths. Resulted sense_count should be absolutely the same.
What is the requested size with the various HBAs in earlier kernels? Jörg -- EMail:[email protected] (home) Jörg Schilling D-13353 Berlin [email protected] (uni) [email protected] (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
