Date: Wed, 6 Mar 2002 22:43:16 +0100 (CET) From: Tomas Pluskal <plusik@pohoda.cz> To: freebsd-hardware@freebsd.org Subject: slow ATAPI ZIP ? Message-ID: <20020306223633.D485-100000@s096-n062.tele2.cz>
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Hello, I've 2 IDE controllers in my computer (1 on the mainboard and 1 added PCI card). Both are ATA-100. FreeBSD finds them OK and all connected devices work. On the second controller I have 1 HDD (1st IDE channel) and ATAPI ZIP drive (2nd IDE channel) and none of them works with DMA. Even when I set dma with sysctl, it falls back to PIO mode. I am not sure about the ZIP drive, but I am sure the HDD supports UDMA (it's WD Caviar 15GB). The HDD is quite fast even when in PIO mode (about 3 MB/s), but the ZIP drive is extremely slow (about 50KB/s), which is annoying. In M$ Windows it works normally (at least 10x faster). Maybe the kernel sets bad PIO mode for the ZIP drive, but I don't know how to change it ? This is dmesg report about ata devices: atapci0: <CMD 649 ATA100 controller> port 0xb000-0xb00f,0xac00-0xac03,0xa800-0xa807,0xa400-0xa403,0xa000-0xa007 irq 11 at device 8.0 on pci0 ata2: at 0xa000 on atapci0 ata3: at 0xa800 on atapci0 atapci1: <VIA Apollo ATA controller> port 0xbc00-0xbc0f at device 17.1 on pci0 ata0: at 0x1f0 irq 14 on atapci1 ata1: at 0x170 irq 15 on atapci1 ad0: 38166MB <ST340016A> [77545/16/63] at ata0-master WDMA2 ad6: 14669MB <WDC WD153BA> [29805/16/63] at ata3-master UDMA66 acd0: CD-RW <SONY CD-RW CRX175A> at ata1-master using PIO4 acd1: CDROM <BCD-40XH CD-ROM> at ata1-slave using PIO4 afd0: 96MB <IOMEGA ZIP 100 ATAPI> [32/64/96] at ata2-master using PIO0 Is there a possibility to make the ZIP drive faster ? Thx Tomas Pluskal To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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