Date: Wed, 9 Sep 2009 20:45:04 +0200 From: Marius Strobl <marius@alchemy.franken.de> To: R J <rjohanne@piper.hamline.edu> Cc: freebsd-sparc64@freebsd.org Subject: Re: sata pci cards in ultra 60 or blade 1000 (Update) Message-ID: <20090909184504.GD57060@alchemy.franken.de> In-Reply-To: <Pine.LNX.4.64.0909081851001.8820@wnk> References: <Pine.LNX.4.64.0909051749450.4756@wnk> <20090906182156.GA66161@alchemy.franken.de> <Pine.LNX.4.64.0909081851001.8820@wnk>
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On Tue, Sep 08, 2009 at 07:30:53PM -0500, R J wrote: > Marius, > > I would like to say that thanks for fixing the ata-marvell driver for the > SuperMicro Sata card on sparc64, atleast the blade 1000. Your patch has > enabled the card to detect the disk drive and complete booting. Not only > that, I was able to go all the way and create a new partition on the disk, > newfs it, and mount it. I was able to copy 1.6gigs of data onto the > partition, and was able to copy data from the partition to another > directory within the same partition at a tune of about 40MB/s. > > Before that patch, the system was not able to complete booting. > > Out of curiosity, ofcourse, what does the patch do? Does it basically > disable 64-bit and dma for the driver on sparc64? It does no such things, it just fixes some sloppy programming (see my last email for a description of the problems) which caused the driver to only have a chance of working on x86 but AFAICT not on any of the other architectures supported by FreeBSD. > This is a PCI-X 133mhz > card. It would be a dream to get half the band-width as it is in a 66mhz > pci slot. > > Thanks, Robert. > > NOTE: > > Here's a brief output from stock iostat: note the numbers for ad0. > I admit that I have no experience with "benchmarking" disk I/O with iostat(8), however checking with my machines suggests that 40MB/s actually is an excellent result for copying data from a disk to itself, I don't get anywhere near that rate, not even on x86 with SATA300 gear. Marius
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