Messages in this thread | | | Date | Fri, 11 Jun 1999 23:21:33 +0200 | From | Kurt Garloff <> | Subject | Re: AM53/79C974 |
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On Thu, Jun 10, 1999 at 11:40:14AM +0100, Philip Blundell wrote: > >I just get a dc-390 scsi card at home, and i was wondering what was the > >difference between : > >AM53/79C974 PCI SCSI support (CONFIG_SCSI_AM53C974) > >Tekram DC390(T) and Am53/79C974 SCSI support (CONFIG_SCSI_DC390T) > >as they both support the same chipset... > > The latter driver is a more recent addition to the kernel and is more actively > maintained. At one point there was some hardware that only the former driver > supported but I suspect this is no longer the case.
The former also has some problems besides not being supported: * It does not support Taggeg Command Queueing and * (more severe) from time to time you will suffer your SCSI subsystem going mad, if your disks use disconnection
I spent some time looking at the sources and I didn't see the bug in the AM53C974 driver.
On the other hand, I maintain the tmscsim (DC390/AM53C974) driver, which works very well, so I recommend to use this one to everybody.
If you are interested to test the next version of it, 2.0e (current is 2.0d), have a look at http://www.garloff.de/kurt/linux/dc390/ and try 2.0d9. It should be _more_ stable than plain 2.0d by design, but I still want to wait a couple of days before releasing it as 2.0e to the kernel, to have more people having the opportunity to test it. Until now, I did not see any failure report for it, yet.
Regards, -- Kurt Garloff <garloff@suse.de> SuSE GmbH, Nürnberg, FRG Linux kernel development; SCSI driver: DC390 (tmscsim/AM53C974) [unhandled content-type:application/pgp-signature] | |