s390: scatter-gather for inbound traffic in qeth driver

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For large incoming packets > PAGE_SIZE/2 qeth creates a fragmented skb
by adding pointers to qdio pages to the fragment list of the skb.
This avoids allocating big chunks of consecutive memory. Also copying
data from the qdio buffer to the skb is economized.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

...

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Frank Blaschka 2007-07-12 12:51:34 +02:00 • committed by Jeff Garzik

parent 44c8215257

commit aa617aa956

3 changed files with 165 additions and 32 deletions

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9

drivers/s390/net/qeth.h

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182

drivers/s390/net/qeth_main.c

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6

drivers/s390/net/qeth_proc.c

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