From owner-freebsd-questions Fri May 9 10:52:49 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id KAA19602 for questions-outgoing; Fri, 9 May 1997 10:52:49 -0700 (PDT) Received: from gatekeeper.tseinc.com (gatekeeper.tseinc.com [206.114.206.9]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id KAA19587 for ; Fri, 9 May 1997 10:52:46 -0700 (PDT) Received: (from nobody@localhost) by gatekeeper.tseinc.com (8.8.3/8.8.3) id MAA05091 for ; Fri, 9 May 1997 12:52:39 -0500 (CDT) Message-Id: <199705091752.MAA05091@gatekeeper.tseinc.com> X-Authentication-Warning: gatekeeper.tseinc.com: nobody set sender to using -f Received: from unknown(192.168.1.12) by gatekeeper.tseinc.com via smap (V1.3) id sma005088; Fri May 9 12:51:50 1997 From: "Jay L. West" To: Subject: question on adaptec 1520 controller w/DMA??? Date: Fri, 9 May 1997 12:51:49 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1155 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I have an adaptec 1520 controller. According to the FreeBSD manuals it's slow partially because the 1520 doesn't have DMA support. That may have been true on older 1520 models, but currently they have a jumper to select either polled mode or DMA. Can I used the DMA function with FreeBSD? The aic driver example just shows an interrupt and port, not a drq. Can I use the drq keyword? Or can I used the aha driver with the 152x to get DMA? The card does support DMA. Any help is most appreciated! Thanks in advance. PS - please reply to jlwest@tseinc.com as I'm not currently on this list. THANKS! Jay West ------------------------------------------------------------------------ Unix *IS* user friendly; It's just selective about who it's friends are! ------------------------------------------------------------------------