Spidernet DMA coalescing

Browse source

The current driver code performs 512 DMA mappings of a bunch of
32-byte ring descriptor structures. This is silly, as they are
all in contiguous memory. This patch changes the code to
dma_map_coherent() each rx/tx ring as a whole.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: James K Lewis <jklewis@us.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

...

This commit is contained in:

Linas Vepstas 2006-12-13 15:06:59 -06:00 • committed by Jeff Garzik

parent 834324687d

commit d4ed8f8d1f

3 changed files with 54 additions and 70 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

105

drivers/net/spider_net.c

View file

17

drivers/net/spider_net.h

View file

4

drivers/net/spider_net_ethtool.c

View file