s390/qeth: extract qdio buffers from output buffer struct

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Because of the embedded qdio_buffer array struct qeth_qdio_out_q is
quite large resulting in an order 4 allocation. This is likely to
fail at runtime and wastes a lot of memory since the actual size is
just about 34K.

Since there is no need for this buffer to be contiguous split it up
using qdio buffer helpers.

Reported-by: Neale Ferguson <neale@sinenomine.net>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

...

This commit is contained in:

Sebastian Ott 2014-06-27 17:09:25 +02:00 • committed by Martin Schwidefsky

parent 6d284bde2b

commit d445a4e28c

2 changed files with 58 additions and 37 deletions

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4

drivers/s390/net/qeth_core.h

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91

drivers/s390/net/qeth_core_main.c

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