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/openbmc/linux/drivers/net/dsa/
H A Dbcm_sf2_regs.hdiff 5d80bcbb631ce035f37bce1924fe73ed0d77b546 Fri Oct 20 16:39:45 CDT 2017 Florian Fainelli <f.fainelli@gmail.com> net: dsa: bcm_sf2: Make UDF slices more configurable

In preparation for introducing IPv6 rules support, make the
cfp_udf_layout more flexible and match more accurately how the HW is
designed: we have 3 + 1 slices per protocol, but we may not be using all
of them and we are relative to a particular base offset (slice A for
IPv4 for instance). Also populate the slice number that should be used
(slice 1 for IPv4) based on the lookup function.

Finally, we introduce two helper functions: udf_upper_bits() and
udf_lower_bits() to help setting the UDF_n_* valid bits based on the
number of UDFs valid within a slice. Update the IPv4 rule setting to
make use of it to be more robust wrt. change in number of User Defined
Fields being programmed.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
H A Dbcm_sf2_cfp.cdiff 5d80bcbb631ce035f37bce1924fe73ed0d77b546 Fri Oct 20 16:39:45 CDT 2017 Florian Fainelli <f.fainelli@gmail.com> net: dsa: bcm_sf2: Make UDF slices more configurable

In preparation for introducing IPv6 rules support, make the
cfp_udf_layout more flexible and match more accurately how the HW is
designed: we have 3 + 1 slices per protocol, but we may not be using all
of them and we are relative to a particular base offset (slice A for
IPv4 for instance). Also populate the slice number that should be used
(slice 1 for IPv4) based on the lookup function.

Finally, we introduce two helper functions: udf_upper_bits() and
udf_lower_bits() to help setting the UDF_n_* valid bits based on the
number of UDFs valid within a slice. Update the IPv4 rule setting to
make use of it to be more robust wrt. change in number of User Defined
Fields being programmed.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>