From 1.2.10 up to 1.3.20, I have been able to set the SG_BIG_BUFF
buffer size in the scsi generic driver to 1MB. I use the generic
driver to move digital video files over scsi to a scsi frame buffer
device so a big buffer is a good thing in my case. I just loaded
1.3.39 and found that I can no longer make the buffer this big.
I hacked the kernel a little to allow for the big buffer, but it
would be nice if the kernel didn't limit device driver buffer sizes.
I'd rather not chop up my IO's into smaller chunks.