From owner-freebsd-current Mon Apr 1 5:55: 1 2002 Delivered-To: freebsd-current@freebsd.org Received: from magic.adaptec.com (magic.adaptec.com [208.236.45.80]) by hub.freebsd.org (Postfix) with ESMTP id 3DCDF37B41F; Mon, 1 Apr 2002 05:54:50 -0800 (PST) Received: from redfish.adaptec.com (redfish.adaptec.com [162.62.50.11]) by magic.adaptec.com (8.10.2+Sun/8.10.2) with ESMTP id g31Dsnj18879; Mon, 1 Apr 2002 05:54:49 -0800 (PST) Received: from OTCEXC01.otc.adaptec.com (otcexc01.otc.adaptec.com [10.12.1.27]) by redfish.adaptec.com (8.8.8+Sun/8.8.8) with ESMTP id FAA06372; Mon, 1 Apr 2002 05:54:48 -0800 (PST) Received: by otcexc01.otc.adaptec.com with Internet Mail Service (5.5.2653.19) id ; Mon, 1 Apr 2002 08:55:04 -0500 Message-ID: From: "Salyzyn, Mark" To: "Long, Scott" , Michael Smith Cc: Alfred Perlstein , "Salyzyn, Mark" , obrien@freebsd.org, current@freebsd.org Subject: RE: asr can not map memory? Date: Mon, 1 Apr 2002 08:55:03 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > On Sat, Mar 30, 2002 at 10:28:05PM -0800, Michael Smith wrote: > > > This avoids a panic when probing, there's probably still some > > > badness going on with make/destroy dev in this driver. > > Pending commentary from Scott, I think you should commit this. > Yes, there is a lot of evilness in the asr driver. A whole lot. The > original author does not have time/desire to maintain it, so obrien > volunteered to take over maintainership. Thanks obrien ;-} Scott? Hmmmmm? Where is a pitchfork when you need it ;-> Time and micro-managed priorities limit my usefulness currently, Scott is right ... Driver is just asking for it's `just deserved' mappings to the card, I put my vote with Michael with regards to the PCI system not differentiating non-prefetched (hardware) and prefetched (memory) mappings (said with an aire of pretending to know unintentional). > > > Should I hold onto this card or should I suck it up and get > > > a 3ware online somewhere? > Be a man and buy a SCSI RAID controller. The Adaptec 5400S is > all you'll ever need =-) SCSI is too expensive for many folk, that is why we made the 2400A. However, IDE looses 2ms on every access because it can not overlap commands -- much of that delay is reduced with the SCSI origined 2400A's cache/coalesce/elevator code, we see performance that has us wondering out loud about the SCSI price differential. Good luck, hope I could help ... Sincerely -- Mark Salyzyn To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message