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ila: add checksum neutral map auto

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Add checksum neutral auto that performs checksum neutral mapping
without using the C-bit. This is enabled by configuration of
a mapping.

The checksum neutral function has been split into
ila_csum_do_neutral_fmt and ila_csum_do_neutral_nofmt. The former
handles the C-bit and includes it in the adjustment value. The latter
just sets the adjustment value on the locator diff only.

Added configuration for checksum neutral map aut in ila_lwt
and ila_xlat.

Signed-off-by: Tom Herbert <tom@quantonium.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert
2017-11-05 15:58:23 -08:00
committed by David S. Miller
parent 80661e7687
commit 84287bb328
4 changed files with 61 additions and 44 deletions
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include/uapi/linux/ila.h
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@@ -41,6 +41,7 @@ enum {
ILA_CSUM_ADJUST_TRANSPORT,
ILA_CSUM_NEUTRAL_MAP,
ILA_CSUM_NO_ACTION,
ILA_CSUM_NEUTRAL_MAP_AUTO,
};
#endif /* _UAPI_LINUX_ILA_H */