Re: [PATCH] 3ware scsi_dma_unmap fix

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On Tue, 5 May 2009 17:25:40 -0700
adam radford <aradford@xxxxxxxxx> wrote:

> I wouldn't do that.  The generic_buffer_virt stuff is there because
> the hardware can't DMA < 512 bytes, so we sg_copy_to/from_buffer()
> there, then dma from generic_buffer_virt.

Thanks, I see. Yeah, if the hardware can't DMA < 512 bytes, the driver
needs such workaround.
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