linux

iv/linux

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Lucas Nussbaum 06e868066e sctp: Allow to disable SCTP checksums via module parameter

This is a new version of my patch, now using a module parameter instead
of a sysctl, so that the option is harder to find. Please note that,
once the module is loaded, it is still possible to change the value of
the parameter in /sys/module/sctp/parameters/, which is useful if you
want to do performance comparisons without rebooting.

Computation of SCTP checksums significantly affects the performance of
SCTP. For example, using two dual-Opteron 246 connected using a Gbe
network, it was not possible to achieve more than ~730 Mbps, compared to
941 Mbps after disabling SCTP checksums.
Unfortunately, SCTP checksum offloading in NICs is not commonly
available (yet).

By default, checksums are still enabled, of course.

Signed-off-by: Lucas Nussbaum <lucas.nussbaum@ens-lyon.fr>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2009-02-16 00:03:09 -08:00

auth.h

[SCTP]: Stop claiming that this is a "reference implementation"

2008-02-05 10:59:07 -05:00

checksum.h

sctp: Fix crc32c calculations on big-endian arhes.

2009-01-22 14:52:23 -08:00

command.h

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2008-04-14 02:30:23 -07:00

constants.h

sctp: Rework the tsn map to use generic bitmap.