Date: Wed, 16 Dec 1998 13:00:07 -0800 (PST) From: Kenneth Merry <ken@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: cvs commit: src/sys/cam cam_periph.c Message-ID: <199812162100.NAA08311@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
ken 1998/12/16 13:00:07 PST
Modified files:
sys/cam cam_periph.c
Log:
At Justin's request, limit the size of buffers that can be mapped into
and out of kernel address space (via the pass(4) and xpt(4) peripheral
drivers) to 64K (DFLTPHYS). Some controllers, like the Adaptec 1542,
don't support more than 64K transactions.
We plan on eventually having the capability of limiting this size based
on min(MAXPHYS, controller max), but since that capability isn't here yet,
limit things to the lowest common denominator.
Revision Changes Path
1.8 +4 -4 src/sys/cam/cam_periph.c
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199812162100.NAA08311>