cvmx_l2c_get_tag
tag = cvmx_l2c_get_tag(assoc, index);
tag = cvmx_l2c_get_tag(assoc, index);
union cvmx_l2c_tag cvmx_l2c_get_tag(uint32_t association, uint32_t index);
return cvmx_l2c_get_tag(association, index);