Re: [PATCH 21/21]: powerpc/cell spidernet DMA coalescing

From: Joel Schopp
Date: Fri Oct 13 2006 - 22:16:07 EST


Linas Vepstas wrote:
The current driver code performs 512 DMA mappns of a bunch of 32-byte structures. This is silly, as they are all in contiguous memory. Ths patch changes the code to DMA map the entie area
with just one call.

Signed-off-by: Linas Vepstas <linas@xxxxxxxxxxxxxx>
Cc: James K Lewis <jklewis@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>

While this patch wasn't useful in the current cell implementation of pci_map_single it sounds like people are going to be making changes to that sometime. In light of that new information (new to me anyway) this should probably go in after all. Sorry for causing trouble.

Acked-by: Joel Schopp <jschopp@xxxxxxxxxxxxxx>

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/