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Date:      Fri, 22 May 1998 15:42:09 +0300
From:      Ruslan Ermilov <ru@ucb.crimea.ua>
To:        FreeBSD Questions <questions@FreeBSD.ORG>
Subject:   Questions about Bus Mastering
Message-ID:  <19980522154209.A1824@ucb.crimea.ua>

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Hi!

Bus mastering...

What I know about it? This is the PCI technology similar to DMA channels
on the ISA bus. It allows adapters to control the bus. Thus, they can
deliver their data directly to RAM, minimizing the workload on the CPU.
Am I right?

Questions:

1. What existing hardware supports bus mastering: SCSI host adapters,
   IDE controllers, Network adapters? (examples, please)

2. Does FreeBSD support bus mastering and for which hardware?


Thanks,
-- 
Ruslan Ermilov          System Administrator
ru@ucb.crimea.ua        United Commercial Bank
+380-652-247647         Simferopol, Crimea
2426679                 ICQ Network, UIN

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